Patent application number | Description | Published |
20110032889 | METHOD FOR PERFORMING RANDOM ACCESS PROCESS IN WIRELESS COMMUNICATION SYSTEM - A method of performing a random access process in a wireless communication system includes transmitting a random access preamble, receiving a random access response including uplink radio resource allocation information for multiple transmission time intervals (TTIs) in response to the random access preamble, transmitting a radio resource control (RRC) connection request message according to the uplink radio resource allocation information, and transmitting a non-access stratum (NAS) service request message according to the uplink radio resource allocation information. | 02-10-2011 |
20120178448 | DATA COMMUNICATION METHOD AND APPARATUS VIA INTERLOCK BETWEEN HETEROGENEOUS NETWORKS IN RADIO ACCESS SYSTEM SUPPORTING MULTI RADIO ACCESS TECHNOLOGY - The present invention relates to a method for transmitting and receiving data via a first base station supporting a first radio access technology (RAT) and a second base station supporting a second RAT in a radio access system supporting a multi-radio access technology, and the method may include allowing the first base station to perform a registration procedure with the second base station; and allowing the first base station to transmit control information required for accessing the second base station to a terminal supporting multi-RAT (multi-RAT terminal), wherein the control information comprises beacon frame transmission timing information of the second base station, and the beacon frame transmission timing is maintained in transmission timing of a downlink frame or downlink sub-frame of the first base station with relative timing offset interval. | 07-12-2012 |
20120230243 | METHOD AND APPARATUS FOR EFFICIENTLY RECEIVING BROADCAST CONTROL MESSAGE USING MAC PDU HEADER IN WIRELESS ACCESS SYSTEM - Disclosed is a method of driving a terminal for receiving a broadcast control message formed of a MAC PDU from a wireless access system. The method includes receiving at least one broadcast control message from a base station in a resource region where a broadcast control message is transmitted, extracting broadcast control message type information that represents the kind of a broadcast control message included in the header of the received broadcast control message, and checking the extracted broadcast control message type information and determining whether payload of the received broadcast message is decoded. | 09-13-2012 |
20120314679 | APPARATUS AND METHOD FOR TRANSMITTING UL FEEDBACK INFORMATION FOR CARRIER OVER A UL FEEDBACK CHANNEL IN A MULTICARRIER SYSTEM - Disclosed herein is a method for transmitting feedback information on the downlink of a carrier to a base station in a multicarrier system, and the method may include receiving a first message including uplink feedback allocation information from the base station through a secondary carrier, and transmitting uplink feedback information on the secondary carrier to the base station over an assigned uplink feedback channel of a primary carrier when the secondary carrier is a downlink only activated carrier. | 12-13-2012 |
20130039273 | METHOD AND APPARATUS FOR RECEIVING A MEDIUM ACCESS CONTROL PROTOCOL DATA UNIT HAVING A FRAGMENTATION AND PACKING EXTENDED HEADER - The present invention relates to a method in which a receiver receives an MAC (medium access control) PDU (protocol data unit) in a wireless communication system. The method in which the receiver receives an MAC PDU comprises the following steps: receiving an MAC PDU containing a header and a payload from a transmitter, wherein the header includes a first extended header containing a first length field which indicates the length of a service data unit (hereinafter, referred to as “SDU”) or lengths of fragmented SDUs in the MAC PDU; decoding the header; and determining whether the size of the first length field in the extended header is an extended size or a basic size in accordance with the results of decoding. | 02-14-2013 |
20130121300 | METHOD FOR REENTERING NETWORK OF NO-MOBILITY MOBILE STATION IN IDLE STATE AND METHOD FOR SUPPORTING SAME - Disclosed are a method for reentering the network of a no-mobility idle state mobile station and a method for supporting same. A device for supporting the reentry into the network of a no-mobility idle state mobile station in a wireless communication system of the present invention comprises a transmitter for transmitting to the no-mobility idle state mobile station a first information including information on whether an uplink region has been allocated just for the no-mobility idle state mobile station. The first information can further include information on the allocated uplink region. The mobile station for executing the reentry into the network of the present invention comprises a receiver for receiving from a base station a first information including information on whether an uplink area has been allocated just for the no-mobility idle state mobile station. The first information can further include information on the allocated uplink region. | 05-16-2013 |
20130121303 | METHOD FOR DISTRIBUTING RANDOM ACCESS, METHOD FOR DISTRIBUTING AND PERFORMING RANDOM ACCESS, AND DEVICE THEREFOR - Disclosed are a method for distributing a random access and a method for distributing and performing the random access. According to the present invention, a method for performing a random access of a terminal comprises the step of receiving a paging message indicative of a network reentry from a base station, wherein said paging message can contain at least either the identifier information of terminal groups, in which terminals are grouped, or the random access configuration information which corresponds to said terminal groups. Said random access configuration information can contain random access standby time information of said terminal groups and back-off window size information. Said method further comprises the steps of: selecting a random access opportunity on the basis of said random access configuration information; and transmitting a random access code to said base station in said selected random access opportunity. | 05-16-2013 |
20130122904 | METHOD AND DEVICE FOR TRANSMITTING/RECEIVING DATA IN WIRELESS ACCESS SYSTEM SUPPORTING MULTI-RADIO ACCESS TECHNOLOGY - The present invention relates to a method by which a terminal transmits/receives data to/from a first base station (BS) supporting a first radio access technology (RAT) and a second BS supporting a second RAT in a wireless access system supporting multi-RAT, the method comprising the steps of: executing an initial network entry to the first BS; a step for executing a multi-RAT capability negotiation with the first BS to exchange information needed to access the second BS; executing a scanning on at least one second BS included in the coverage of the first BS, on the basis of the information received from the first BS through the multi-RAT capability negotiation process; executing an access to a second BS of the at least one second BS; and simultaneously transmitting/receiving data with the first BS and the second BS accessed through the access process. | 05-16-2013 |
20130122922 | METHOD AND DEVICE FOR TRANSMITTING/RECEIVING IDENTIFIER FOR NO-MOBILITY MOBILE STATION IN IDLE STATE IN WIRELESS COMMUNICATION SYSTEM - Disclosed are a method and a device for transmitting/receiving an identifier for a no-mobility mobile station in an idle state in a wireless communication system. In a base station device for transmitting an identifier for a no-mobility mobile station in an idle state, according to the present invention, a receiver receives information on mobility from at least one mobile station. A processor allocates, to the at least one no-mobility mobile station in an idle state, at least one identifier for a no-mobility mobile station in an idle state for a no-mobility mobile station in an idle state on the basis of the information on mobility. A transmitter transmits the allocated identifier to the at least one no-mobility mobile station in an idle state. | 05-16-2013 |
20130130681 | METHOD AND DEVICE FOR TRANSMITTING/RECEIVING DATA IN WIRELESS ACCESS SYSTEM SUPPORTING MULTI-RADIO ACCESS TECHNOLOGY - The present invention relates to a method by which a terminal transmits/receives data to/from a first base station supporting a first radio access technology and a second base station supporting a second radio access technology in a wireless access system supporting multi-radio access technology (multi-RAT), the method comprising the steps of: executing an initial network entry to the first base station; executing a multi-RAT capability negotiation with the first base station to exchange information needed to access the second base station; a step for executing a scanning on at least one second base station included in the coverage of the first base station, on the basis of the information received from the first base station through the multi-RAT capability negotiation step; executing an access to one second base station of said at least one second base station; and simultaneously transmitting/receiving data to/from the first base station and the second base station accessed through the access step, wherein the step of executing a scanning comprises a step of receiving from the first base station a multi-RAT scan command message for commanding the scanning of said at least one second base station, and a step of executing a scanning of said at least one second base station. | 05-23-2013 |
20130136014 | SCANNING METHOD AND APPARATUS IN WIRELESS ACCESS SYSTEM - A method for scanning assigned carriers in a multicarrier system may include receiving a multicarrier advertisement message from a base station, the multicarrier advertisement message including scan reporting trigger control information of assigned secondary carriers, performing scanning for the assigned secondary carriers, and reporting the scan results to the base station when a specific metric measured by the scanning meets a condition set in the scan reporting trigger control information. | 05-30-2013 |
20130136048 | METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING DOWNLINK DATA FOR NO-MOBILITY MOBILE STATION IN IDLE STATE - Disclosed are a method and a device for transmitting and receiving downlink data for a no-mobility mobile station in an idle state. A terminal device for receiving downlink data for a no-mobility mobile station in an idle state of the present invention comprises a receiver for receiving from a base station a first information including information on whether a downlink area has been allocated for a no-mobility mobile station in an idle state just for a terminal in an idle state without mobility. The receiver is configured to additionally receive a second information including information on the allocated downlink area, and the first information can be one of the following a super-frame header (SFH), a broadcast control channel (BCCH), a non-user specific A-MAP, an extended non-user specific A-MAP, and a physical downlink control channel (PDCCH). | 05-30-2013 |
20130142151 | DATA COMMUNICATION METHOD AND APPARATUS VIA INTERLOCK BETWEEN HETEROGENEOUS NETWORKS IN RADIO ACCESS SYSTEM SUPPORTING MULTI RADIO ACCESS TECHNOLOGY - The present invention relates to a method for transmitting and receiving data via a first base station supporting a first radio access technology (RAT) and a second base station supporting a second RAT in a radio access system supporting a multi-radio access technology, and the method may include allowing the first base station to perform a registration procedure with the second base station; and allowing the first base station to transmit control information required for accessing the second base station to a terminal supporting multi-RAT (multi-RAT terminal), wherein the control information comprises beacon frame transmission timing information of the second base station, and the beacon frame transmission timing is maintained in transmission timing of a downlink frame or downlink sub-frame of the first base station with relative timing offset interval. | 06-06-2013 |
20130165114 | METHOD AND DEVICE FOR TRANSMITTING/RECEIVING DATA IN WIRELESS ACCESS SYSTEM SUPPORTING MULTI-RADIO ACCESS TECHNOLOGY - The present invention relates to a method by which a terminal transmits/receives data to/from a first base station supporting a first wireless access technology and a second base station supporting a second wireless access technology in a wireless access system supporting multi-radio access technology (multi-RAT), the method comprising: a step for executing an initial network entry process with the first base station; a step for executing a multi-RAT capability negotiation process with the first base station to exchange information needed to access the second base station; a step for executing a scanning process on at least one second base station included in the coverage of the first base station, based on the information received from the first base station through the multi-RAT capability negotiation process; a step for executing an access process with one of the second base stations from said at least one second base station; and a step for simultaneously transmitting/receiving data with the first base station and the second base station accessed through the access process, wherein the step for executing the access process includes: a step for receiving a second system access command message that commands access to the one of the second base stations from the first base station; and a step for accessing the one of the second base stations based on the second system access command message received. | 06-27-2013 |
20130196661 | METHOD AND APPARATUS FOR DETERMINING DATA TRANSRECEIVING PATH IN RADIO ACCESS SYSTEM SUPPORTING MULTI-RAT - A method for transreceiving data disclosed in the present invention is a method for a terminal transreceiving between a first base station supporting a first radio access technology (RAT) and a second base station supporting a second RAT in a radio access system supporting Multi-RAT, and comprises the following steps: receiving access information for the second base station from the first base station; accessing the second base station based on access information of the second base station; transmitting to the first base station command information including an address on the second RAT, which is used for accessing the second base station; and transreceiving data having a first flow ID from the first base station through the first RAT, and transreceiving data having a second flow ID from the second base station through the second RAT. | 08-01-2013 |
20130201956 | METHOD AND DEVICE FOR TRANSMITTING/RECEIVING DATA IN A MULTI RADIO ACCESS SYSTEM - Provided is a method for performing communication by a user equipment (UE) supporting a multi-RAT, the method including transmitting a capability negotiation request message for Client Cooperation (CC) to a base station (BS); receiving a capability negotiation response message for CC from the BS; receiving an activation command message from CC including information on at least one candidate cooperative device; transmitting a connection message for CC to the at least one candidate cooperative device by using the information; and transmitting first data to the BS through at least one cooperative device, which is connected using the connection message, among the at least one candidate cooperative device. The first data is transmitted through a first radio access scheme between the UE and the at least one cooperative device, and is transmitted through a second radio access scheme between the at least one cooperative device and the BS. | 08-08-2013 |
20130201961 | METHOD AND APPARATUS FOR PROVIDING FLOW MOBILITY IN RADIO ACCESS SYSTEM SUPPORTING MULTI-RAT - A method for a terminal transreceiving data in a radio access system that supports RAT with a first base station that supports a first RAT and a second base station that supports a second RAT, includes the following steps: adding a first service flow through a dynamic service process with the first base station; receiving from the first base station a second system command message for directing connection with the second base station, wherein the second system command message includes either disconnection time information which expresses disconnection time from the first service flow or action time information which expresses the beginning of connection to the first service flow; disconnecting from the first base station and the first service flow, according to the disconnection time information; and transreceiving data pertaining to the first service flow with the second base station. | 08-08-2013 |
20130203459 | METHOD AND APPARATUS FOR TRANSRECEIVING DATA IN RADIO ACCESS SYSTEM SUPPORTING MULTI-RAT - The present invention relates to a method for a terminal transreceiving data with a first base station supporting first radio access technology (RAT) and a second bases station supporting second RAT in a radio access system supporting Multi-RAT, and comprises the following steps: performing initial network entry with the first base station; negotiating with the first base station Multi-RAT capability for exchanging information necessary to access the second base station; performing the access process with the second base station; and simultaneously transreceiving data between the first base station and the second base station, which is accessed through the access process, wherein the step of negotiating Multi-RAT capability further comprises a step of transmitting control information that expresses a specific service flow or a QoS type, which prefers communication with the second base station, to the first base station. | 08-08-2013 |
20130208662 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING DATA IN WIRELESS ACCESS SYSTEM FOR SUPPORTING MULTI-RADIO ACCESS TECHNOLOGY - The present invention, relates to a method of a terminal transmitting/receiving data to/from first base stations for supporting a first radio access technology (RAT) and second base stations for supporting a second RAT in a wireless access system, includes performing a scanning process for at least one second base station; receiving a first message for reordering the scanning process for the at least one second base station after predetermined time; transmitting a first scanning report message indicating the result of the scanning process for the at least one second base station based on the first message; receiving a second message for ordering the connection with one second base station of the at least one second base station; performing a connecting process for the at least one second base station based on the second message; and simultaneously transmitting/receiving the data to/from the first base stations and the second base stations. | 08-15-2013 |
20130208701 | METHOD OF TRANSMITTING AND RECEIVING DATA IN A MULTI RADIO ACCESS TECHNOLOGY SYSTEM USING AN ACCESS POINT AND APPARATUS THEREFOR - The present invention relates to a wireless communication, and more particularly, to a method for a base station and a user equipment to transmit and receive data in a multi radio access technology system based on an access point (AP) and apparatus therefor. According to one embodiment of the present invention, a method of performing a communication, which is performed by a user equipment based on an access point (AP) supporting a Multi-RAT (Radio Access Technology), may include the steps of receiving an information on a 1st AP associated with the user equipment among a plurality of APs from the 1st AP, transmitting the information on the 1st AP to a base station, receiving an information on at least one cooperative user equipment candidate associated with the 1st AP from the base station, and transmitting a 1st data to the base station using the at least one cooperative user equipment, wherein the 1st data is exchanged between the user equipment and the at least one cooperative user equipment via a 1st radio access scheme and wherein the 1st data is exchanged between the at least one cooperative user equipment and the base station via 2nd radio access scheme. | 08-15-2013 |
20130215860 | METHOD OF TRANSMITTING AND RECEIVING DATA IN A MULTI RADIO ACCESS TECHNOLOGY SYSTEM AND APPARATUS THEREFOR - A method of performing a wireless communication, which is performed by a user equipment supporting a Multi-RAT (Radio Access Technology), includes receiving a notification signal indicating an existence of at least one cooperative user equipment candidate from the at least one cooperative user equipment candidate for a client cooperation (CC) via a first radio access scheme and transmitting a first data to a base station using at least one cooperative user equipment connected via the received notification signal among the at least one cooperative user equipment candidate. In this case, the first data is exchanged between the user equipment and the at least one cooperative user equipment via the first radio access scheme and the first data is exchanged between the at least one cooperative user equipment and the base station via a second radio access scheme. | 08-22-2013 |
20130223321 | APPARATUS AND METHOD FOR PERFORMING SCANNING OF ASSIGNED SECONDARY CARRIER IN WIRELESS ACCESS SYSTEM - A scan reporting method for an inactive secondary carrier in a wireless access system includes receiving, from a base station, a multicarrier advertisement (MC-ADV) message including reference carrier information, the reference carrier information indicating a carrier index of a reference carrier representing a carrier group, performing scanning of an assigned secondary carrier including at least one of an active secondary carrier and an inactive secondary carrier, and reporting, to the base station, the scan result of the inactive secondary carrier, wherein the scan result of a carrier corresponding to the lowest carrier index, of assigned secondary carriers linked to the reference carrier is reported to the base station. | 08-29-2013 |
20130250905 | METHOD AND APPARATUS FOR TRANSCEIVING DATA IN A RADIO ACCESS SYSTEM WHICH SUPPORTS A MULTI-RADIO ACCESS TECHNOLOGY - The present description relates to a method in which a multi-radio access technology (RAT) terminal transceives data to/from a first base station that supports a first RAT and to/from a second base station that supports a second RAT, in a radio access system which supports multi-radio access technologies (RATs). The multi-RAT terminal transmits, to the first base station, a multi-RAT capability negotiation request message containing control information indicating the second base station which is preferred for communication, thereby simplifying a scanning process for the second base station and thus reducing the power consumption of the multi-RAT terminal. | 09-26-2013 |
20130252608 | METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING DATA IN RADIO ACCESS SYSTEM THAT SUPPORTS MULTI-RADIO ACCESS TECHNOLOGY - In a radio access system for supporting multi-radio access technology (RAT), the present invention provides a method for allowing a terminal to transmit and receive data with a first base station for supporting a first RAT and a second base station for supporting a second RAT, and the method comprises the steps of: receiving, from said first base station, a first message which indicates scanning execution for said second base station; allowing said first message to include control information which is necessary for the scanning execution of said second base station, and executing the scanning for said second base station on the basis of said control information; and transmitting, to said first base station, a multi-RAT scan report message which contains the result of the scanning execution for said second base station. | 09-26-2013 |
20130287014 | DATA COMMUNICATION METHOD AND APPARATUS VIA INTERLOCK BETWEEN HETEROGENEOUS NETWORKS IN RADIO ACCESS SYSTEM SUPPORTING MULTI RADIO ACCESS TECHNOLOGY - The present invention relates to a method for transmitting and receiving data via a first base station supporting a first radio access technology (RAT) and a second base station supporting a second RAT in a radio access system supporting a multi-radio access technology, and the method may include performing a network (re)entry procedure with the first base station; receiving control information required for an access to the second base station located in the vicinity of the first base station from the first base station; performing a scanning procedure for at least one second base station located in the vicinity of the first base station; receiving an instruction message instructing an access to the second base station from the first base station; and performing an access procedure with the second base station. | 10-31-2013 |
20130294314 | METHOD AND DEVICE FOR TRANSCEIVING DATA IN A RADIO ACCESS SYSTEM SUPPORTING MULTI-RADIO ACCESS TECHNOLOGY - In the specification, a method for a terminal to transceive data to/from a first base station supporting a first RAT and a second base station supporting a second RAT in a radio access system supporting multi-Radio Access Technology (RAT) includes: performing a data communication on a first service flow with the first base station; receiving a first message, which instructs an access of the terminal by the second base station, from the first base station in order for the terminal to perform a data communication on a second service flow with the second base station; performing a procedure of accessing the second base station; and performing a data communication on the second service flow with the second base station according to the run-time information. | 11-07-2013 |
20130336227 | METHOD OF TRANSMITTING AND RECEIVING DATA IN A WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - The present invention relates to a method and apparatus for transmitting and receiving data in a wireless communication. In a communication performed by a user equipment supporting a multi-RAT (multi-radio access technology), the present invention includes receiving a 1st information for identifying a 1st cooperative user equipment candidate from the 1st cooperative user equipment candidate corresponding to at least one of a plurality of cooperative user equipment candidates, transmitting the 1st information to a base station, receiving an information on at least one 2nd cooperative user equipment candidate determined among the at least one 1st cooperative user equipment candidate using the 1st information from the base station, and performing a communication of a 1st data with the base station in cooperation with the at least one 2nd cooperative user equipment candidate. Moreover, the user equipment and a plurality of the cooperative user equipment candidates support a direct communication without using an access point. | 12-19-2013 |
20140106793 | METHOD AND APPARATUS FOR EFFICIENTLY PERFORMING PAGING IN A WIRELESS ACCESS SYSTEM THAT SUPPORTS A MULTI-RADIO ACCESS TECHNOLOGY - According to a first embodiment disclosed in the present description, a method for receiving a paging message of a first base station by a terminal which can transceive data to/from the first base station that supports a first radio access technology (RAT) and a second base station that supports a second radio access technology, in a wireless access system that supports a multi-radio access technology, comprises the steps of: establishing a connection to the first base station; receiving, from the first base station, a second base station connection command message including a paging message transmission indication; establishing a connection to the second base station in response to the second base station connection command message; and monitoring a paging message of the first base station on the basis of the paging message transmission indication using either the first base station or the second base station. | 04-17-2014 |
20140141779 | METHOD FOR PERFORMING A COOPERATIVE OPERATION BETWEEN HETEROGENEOUS NETWORKS AND DEVICE FOR SAME - The present invention relates to a method for performing a cooperative operation between heterogeneous networks and a device for same. A method for a first type base station to perform a cooperative operation between heterogeneous networks in a wireless communication system includes receiving a downlink synchronization channel from at least one second type base station; obtaining an identifier (ID) of the second type base station by using the received downlink synchronization channel; and transmitting at least one of a channel number and a bandwidth of a center frequency of the first type base station and the cell ID of the second type base station to a server. The first type base station and the second type base station use different wireless communication methods or wireless access methods. | 05-22-2014 |
20140169259 | METHOD FOR TRANSMITTING A TERMINAL GROUP ZONE IDENTIFIER IN MACHINE-TO-MACHINE COMMUNICATION - Disclosed is a method for determining whether or not a machine-to-machine (M2M) group identifier (MGID) for identifying a multicast service flow shared by a group of M2M communication terminals in an M2M group zone allocated to a terminal is supported in a wireless access system that supports M2M communication. The method comprises the steps of: receiving, from a first base station, an ID of an M2M group zone to which the first base station belongs; receiving, from the first base station, an MGID and an ID of an M2M group zone in which the MGID is supported; receiving, from the first base station or from a second base station, an ID of an M2M group zone to which the second base station belongs; and determining whether or not the received MGID is supported on the basis of the received ID of the M2M group zone to which the second base station belongs. | 06-19-2014 |
20140221036 | METHOD FOR UPDATING TERMINAL GROUP IDENTIFIER IN MACHINE-TO-MACHINE COMMUNICATION - Disclosed is a method for a terminal, which is in an idle state in a wireless access system that supports machine-to-machine (M2M) communication, updating an M2M group identifier (MGID), which identifies a multicast service flow that is shared by a group of M2M terminals inside an M2M group zone. The method can comprises the steps of: receiving from a first base station the MGID and the M2M group zone identifier of the first base station; receiving from a second base station an M2M group zone identifier of the second base station; requesting from the second base station an MGID update when the M2M group zone identifier of the second base station is different from the M2M group zone identifier of the first base station; and updating the MGID on the basis of a new MGID that is transmitted from the second base station as a response to the request. | 08-07-2014 |
20150036527 | SCANNING METHOD AND APPARATUS IN WIRELESS ACCESS SYSTEM - A method for scanning assigned carriers in a multicarrier system may include receiving a multicarrier advertisement message from a base station, the multicarrier advertisement message including scan reporting trigger control information of assigned secondary carriers, performing scanning for the assigned secondary carriers, and reporting the scan results to the base station when a specific metric measured by the scanning meets a condition set in the scan reporting trigger control information. | 02-05-2015 |
20150045078 | METHOD FOR D2D TERMINAL TRANSMITTING AND RECEIVING DATA IN WIRELESS COMMUNICATION SYSTEM SUPPORTING DEVICE-TO-DEVICE COMMUNICATION - Disclosed is a method for a device-to-device (D2D) terminal transmitting/receiving data in a wireless communication system supporting D2D communication. The method for the D2D terminal transmitting the data in the wireless communication system supporting D2D communication, comprises the steps of: establishing a link identifier between two D2D terminals and at least one connection identifier between the two D2D terminals; and transmitting the data by including the link identifier and the at least one connection identifier which are established. | 02-12-2015 |
20150080002 | METHOD AND APPARATUS FOR ESTABLISHING DEVICE-TO-DEVICE CONNECTION IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for establishing, by a first device, a device-to-device (D2D) connection with a second device in a wireless communication system is provided. When the D2D connection is initiated by a network, the first device receives a D2D broadcast configuration message including information on the second device, from the network, and determines whether to establish the D2D connection with the second device or not. Or, when the D2D connection is initiated by the first device, the first device determines whether to establish the D2D connection with the second device or not, based on at least one of a proximity between the first device and the second device based on a profile of the second device obtained through a neighbor discovery procedure. | 03-19-2015 |
20150085747 | METHOD AND APPARATUS FOR ESTABLISHING DEVICE-TO-DEVICE CONNECTION IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for establishing a device-to-device (D2D) connection in a wireless communication system is provided. A first device may establish the D2D connection with a second device. The first device only knows information on neighbor devices of the first device, and a network does not know the information on neighbor devices of the first device. The first device determines whether to establish the D2D connection with the second device or not, based on at least one of a proximity between the first device and the second device based on a profile of the second device obtained through a neighbor discovery procedure, a presence of data to be transmitted to the second device, and a preference for the D2D connection of the first device. | 03-26-2015 |
Patent application number | Description | Published |
20110172823 | ROBOT AND CONTROL METHOD THEREOF - A robot and a control method thereof may adjust a yaw moment generated from a foot contacting a ground to achieve stable walking of the robot. The robot, which may have an upper body and a lower body, may include a main controller starting walking of the robot through only motions of joints of the lower body and adjusting a motion of the upper body such that a yaw moment generated from a foot the lower body during walking of the robot is less than the maximum static frictional force of a ground to perform stable walking of the robot, and sub controllers driving actuators of the joints according to a control signal of the main controller. | 07-14-2011 |
20110172824 | WALKING ROBOT AND METHOD OF CONTROLLING THE SAME - Disclosed herein are an apparatus and method for controlling stable walking of a robot based on torque. In a method of enabling stable walking by controlling torque of a hip joint portion using a Finite State Machine (FSM) without solving a complicated dynamic equation, torque of a stance leg is finally calculated using pose control torque of an upper body, pose control torque of a swing leg, and initial pose control torque of a stance leg supporting the upper body. Accordingly, the robot may stably walk with torque balance. Since gravity compensation torque is applied, a torso of the robot is not inclined and the pose of the robot is stably maintained. | 07-14-2011 |
20110172825 | WALKING CONTROL APPARATUS OF ROBOT AND METHOD OF CONTROLLING THE SAME - A walking control apparatus of a robot includes joint portions provided in each of a plurality of legs of the robot, a state database to store state data of each of the legs and state data of the joint portions corresponding to the state of each of the legs, when the robot walks, a position instruction unit to store desired positions corresponding to the state data of the joint portions, an inclination sensing unit to sense an inclination of an upper body of the robot, a torque calculator to calculate torques using the inclination of the upper body and the desired positions, and a servo controller to output the torques to the joint portions to control the walking of the robot. Since the robot walks by Finite State Machine (FSM) control and torque servo control, the rotation angles of the joint portions do not need to be accurately controlled. Thus, the robot walks with low servo gain and energy consumption is decreased. Since the robot walks with low servo gain, each of the joints has low rigidity and thus shock generated by collision with surroundings is decreased. | 07-14-2011 |
20110178639 | HUMANOID ROBOT AND WALKING CONTROL METHOD THEREOF - A humanoid robot that achieves stable walking based on servo control of a joint torque and a walking control method thereof. The humanoid robot calculates a joint position trajectory compensation value and a joint torque compensation value using a measurement value of a sensor, compensates for a joint position trajectory and a joint torque using the calculated compensation value, and drives a motor mounted to each joint according to the compensated joint torque. | 07-21-2011 |
20120059518 | WALKING ROBOT AND CONTROL METHOD THEREOF - A walking robot and a control method thereof. The robot includes at least one joint unit on each leg, a sensing unit to sense angle and angular velocity of the at least one joint unit, a memory unit to store data of the angle and angular velocity during stable walking, a target trajectory generation unit to generate a target trajectory, a control torque calculation unit to check stability of the at least one joint unit by comparing the sensed angle and angular velocity with the target trajectory, and, if an unstable joint unit is present, to calculate a control torque of the unstable joint unit to trace the target trajectory, and a servo control unit to transmit the calculated control torque to the unstable joint unit, thereby controlling torques of joint units using an FSM without solving the complicated dynamic equation, thus achieving stable walking. | 03-08-2012 |
20120083922 | WALKING ROBOT AND CONTROL METHOD THEREOF - A walking robot and a control method in which conversion between walking servo control methods is stably carried out. The walking robot includes a sensor unit to measure angles and torques of joints, and a control unit to calculate voltages applied in a Finite State Machine (FSM) control mode and a Zero Moment Point (ZMP) control mode according to the angles and torques of the joints to drive respective joint motors, to store last target joint angles in the FSM control mode during conversion from the FSM control mode to the ZMP control mode, and to perform a motion based on the FSM control mode by substituting the last target joint angles in the FSM control mode for target joint angles in the FSM control mode during conversion from the ZMP control mode to the FSM control mode, thereby performing stable conversion between walking servo control modes without joint sagging. | 04-05-2012 |
20120158175 | WALKING ROBOT AND CONTROL METHOD THEREOF - A walking robot and a control method thereof. The control method includes storing angle change data according to time corresponding to at least one joint unit of the robot using human walking data, extracting reference knot points from the angle change data according to time, and generating a reference walking trajectory using the extracted reference knot points, calculating a walking change factor to perform change between walking patterns of the robot, generating a target walking trajectory through an arithmetic operation between the reference walking trajectory and the calculated walking change factor, calculating a control torque to track the generated target walking trajectory, and transmitting the calculated control torque to the at least one joint unit so as to control walking of the robot, thereby achieving various walking patterns through a comparatively simple arithmetic operation process. | 06-21-2012 |
20120158183 | WALKING ROBOT AND CONTROL METHOD THEREOF - A robot which naturally walks with high energy efficiency similar to a human through optimization of actuated dynamic walking, and a control method thereof. The control method includes defining a plurality of unit walking motions, in which stride, velocity, rotating angle and direction of the robot are designated, through combination of parameters to generate target joint paths, and constructing a database in which the plurality of unit walking motions is stored, setting an objective path up to an objective position, performing interpretation of the objective path as unit walking motions, generating walking patterns consisting of at least one unit walking motion to cause the robot to walk along the objective path based on the interpretation of the objective path, and allowing the robot to walk based on the walking patterns. | 06-21-2012 |
20130116820 | WALKING ROBOT AND CONTROL METHOD THEREOF - A walking robot generates a target trajectory for walking on stairs using a target trajectory used for walking on level ground. A control method controls the robot by generating a target trajectory for walking on stairs using a target trajectory used for walking on level ground. The stairs-walking target-trajectory is generated via simplified calculation using the level-walking target-trajectory. | 05-09-2013 |
20130144439 | WALKING ROBOT AND CONTROL METHOD THEREOF - A walking robot to prevent slippage of a swing foot on the ground and a control method thereof includes generating a target angle trajectory for each joint unit of legs, calculating a torque, which tracks the target angle trajectory, for each joint unit, determining whether slippage of a swing foot connected to a swing leg of the two legs occurs, calculating a final torque to be provided to each joint unit of the swing leg based on a velocity sensed from the swing foot if occurrence of slippage of the swing foot is determined, and providing the calculated final torque to each joint unit. By sensing whether slippage of the swing foot occurs when the swing foot touches the ground and restricting a torque to be applied to each joint unit based on the sensed result, stable walking of the robot is realized. | 06-06-2013 |
20130218345 | WALKING ROBOT AND CONTROL METHOD THEREOF - A walking robot capable of implementing a balancing action to ensure a stable walking on uneven ground based on an FSM-based walking control method, and a control method thereof, is capable of implementing stable walking by controlling torques of the hip joint, the knee joint and the ankle joint by use of FSM without calculating complicated Dynamics Equations. The walking robot ensures stable walking on uneven ground through a simple calculation by use of the angle formed by the ground and the both feet The walking robot is made to be applied to a robot provided with joints having six degrees of freedom through a simple calculation of compensation angles. | 08-22-2013 |
20140046128 | SURGICAL ROBOT SYSTEM AND CONTROL METHOD THEREOF - A control method may be applied to a surgical robot system including a slave robot having a robot arm to which a main surgical tool and an auxiliary surgical tool are coupled, and a master robot having a master manipulator to manipulate the robot arm. The control method includes acquiring data regarding a motion of the master manipulator, predicting a basic motion to be performed by an operator based on the acquired motion data and results of learning a plurality of motions constituting a surgical task, and adjusting the auxiliary surgical tool so as to correspond to the operator basic motion based on the predicted basic motion. The control method allows an operator to perform surgery more comfortably and to move or fix all required surgical tools to or at an optimized surgical position. | 02-13-2014 |
20140331798 | WIRE CONNECTION APPARATUS - A wire connection apparatus includes a link unit and a drive unit configured to drive the link unit. The link unit includes a first link, a second link rotatably coupled to the first link, a third link rotatably coupled to the second link, a plurality of wires, each of which is fixed at one end thereof to the third link, and is fixed at the other end thereof to the drive unit, and through which a driving force is transmitted from the drive unit to the third link, a path forming structure to form a path of each of the wires between the drive unit and the third link, and a length holding structure to hold constant a length of each of the wires between the drive unit and the third link. | 11-13-2014 |
Patent application number | Description | Published |
20120008556 | METHOD AND APPARATUS FOR TRANSMITTING UPLINK REFERENCE SIGNAL IN A MULTI-ANTENNA WIRELESS COMMUNICATION SYSTEM - A method and apparatus for transmitting a Reference Signal (RS) during retransmission at a User Equipment (UE) in a multi-antenna wireless communication system are disclosed. The RS transmission method includes receiving an uplink grant from a Base Station (BS), initially transmitting data and an RS corresponding to each layer based on the uplink grant, receiving ACKnowledgment/Negative ACKnowledgment (ACK/NACK) information for the initially transmitted data, and retransmitting the RS corresponding to each layer and the data according to the ACK/NACK information. The retransmission includes initializing a cyclic shift value for the RS corresponding to each layer according to a cyclic shift field for RSs included in the uplink grant. | 01-12-2012 |
20120076023 | METHOD AND APPARATS FOR PERFORMING EFFICIENT FEEDBACK IN WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTIPLE ANTENNA - A method for transmitting channel status information (CSI) of downlink transmission via uplink in a wireless communication system includes transmitting a rank indicator (RI) and a precoder type indicator (PTI) at a first subframe, transmitting at a second subframe a first precoding matrix indicator (PMI) when the PTI has a first value and transmitting a second PMI and a wideband channel quality indicator (WB CQI) when the PTI has a second value, and transmitting at a third subframe a second PMI and a WB CQI when the PTI has a first value and transmitting a subband (SB) CQI and a second PMI when the PTI has a second value. A user equipment (UE) preferred precoding matrix is indicated by a combination of the first PMI and the second PMI. Subsampled codebooks of precoding codebooks of individual Rank-2, Rank-3 and Rank-4 are applied to the second PMI. | 03-29-2012 |
20120076024 | METHOD AND APPARATUS FOR EFFICIENT FEEDBACK IN A WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTIPLE ANTENNAS - A method and apparatus for performing effective feedback in a wireless communication system supporting multiple antennas. A method for transmitting CSI of downlink transmission via uplink in a wireless communication system includes transmitting a joint-coded rank indicator (RI) and a first wideband (WB) precoding matrix indicator (PMI) at a first subframe, and transmitting a wideband channel quality indicator (WB CQI) and a second WB PMI at a second subframe. A user equipment (UE) preferred precoding matrix is indicated by a combination of the first PMI and the second PMI. If the RI is Rank-1 or Rank-2, the first PMI indicates one of subsets each having 8 indexes from among 16 indexes of the first PMI of a precoding codebook. | 03-29-2012 |
20120076028 | Method and apparatus for performing effective feedback in wireless communication system supporting multiple antennas - A method for transmitting channel status information (CSI) of downlink multi-carrier transmission includes generating the CSI including at least one of a rank indicator (RI), a first precoding matrix index (PMI), a second PMI and a channel quality indicator (CQI) for one or more downlink carriers, the CQI being calculated based on precoding information determined by a combination of the first and second PMIs, determining, when two or more CSIs collide with one another in one uplink subframe of one uplink carrier, a CSI to be transmitted on the basis of priority, and transmitting the determined CSI over a uplink channel. If a CSI including an RI or a wideband first PMI collides with a CSI including a wideband CQI or a subband CQI, the CSI including a wideband CQI or a subband CQI has low priority and is dropped. | 03-29-2012 |
20120076236 | METHOD AND APPARATUS FOR EFFICIENT FEEDBACK IN A WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTIPLE ANTENNA - A method and apparatus for transmitting effective channel status information (CSI) in a wireless communication system supporting multiple carriers are disclosed. A method for transmitting CSI of DL transmission via uplink in a wireless communication system includes transmitting a rank indicator (RI) at a first subframe, and transmitting a first precoding matrix indicator (PMI), a second PMI, and a wideband (WB) channel quality indicator (CQI) at a second subframe. UE preferred precoding matrix is indicated by a combination of the first PMI and the second PMI. A subsampled codebook for each precoding codebook of ranks from Rank-1 to Rank-4 is applied to the first PMI and the second PMI, and a sum of the first PMI and the second PMI for each of Rank-1 to Rank-4 is comprised of 4 bits. | 03-29-2012 |
20120088534 | METHOD AND USER EQUIPMENT FOR TRANSMITTING UPLINK SIGNAL, AND METHOD AND BASE STATION FOR RECEIVING UPLINK SIGNAL - A method for transmitting, at a user equipment having N (N being an integer greater than 1) transmission antennas, an uplink signal to a base station and a method for receiving, at the base station, an uplink signal from the user equipment are disclosed. The base station transmits reception capability information of the base station to the user equipment. Reception capability information includes information indicating that the base station may receive a signal transmitted through a maximum of M (M being an integer greater than 1) transmission antennas. The user equipment transmits the uplink signal using N transmission antennas if N is not greater than M and transmits the uplink signal using M transmission antennas if N is greater than M. | 04-12-2012 |
20120250541 | METHOD FOR TRANSMITTING EFFECTIVE CHANNEL STATUS INFORMATION IN WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTIPLE CARRIERS - A method and apparatus for transmitting effective channel status information (CSI) in a wireless communication system supporting multiple carriers are disclosed. The method for indicating CSI transmission in a wireless communication system supporting multiple carriers includes transmitting downlink control information (DCI) including a channel quality information (CQI) request field to a user equipment (UE) over a physical downlink control channel (PDCCH), and receiving CSI reporting of a single downlink carrier or multiple downlink carriers from the UE over a physical uplink shared channel (PUSCH) without receiving uplink data. If the CSI for the single downlink carrier is reported, the number (N | 10-04-2012 |
20130051369 | METHOD AND APPARATUS FOR MULTIPLEXING CONTROL INFORMATION AND DATA, AND FOR TRANSMITTING THE MULTIPLEXED CONTROL INFORMATION AND DATA IN A MIMO WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for transmitting uplink control information in a wireless communication system. A method for multiplexing uplink control information and uplink data and for transmitting the multiplexed uplink control information and uplink data according to one embodiment of the present invention comprises the following steps: encoding a first transmission block and a second transmission block to generate a first codeword and a second codeword; mapping the first codeword and the second codeword to one or more layers, respectively; and transmitting, via one or more antenna ports, each layer to which the first codeword and the second codeword are mapped, wherein the uplink control information is multiplexed only to either the first transmission block or to the second transmission block. | 02-28-2013 |
20130058305 | METHOD FOR PERFORMING CHANNEL INTERLEAVING IN A MULTI-ANTENNA WIRELESS COMMUNICATION SYSTEM, AND APPARATUS FOR SAME - The present application relates to a method in which a terminal performs channel interleaving in a multi-antenna wireless communication system. More particularly, the method comprises the following steps: constructing both channel quality indicator (CQI) information and coded data information into preset bit-wide vectors to generate a first interleaver input vector sequence; repeating both rank indicator (RI) information and acknowledgement/negative acknowledgement (ACK/NACK) information per the number (N | 03-07-2013 |
20130077523 | METHOD AND DEVICE FOR TRANSMITTING/RECEIVING CHANNEL STATE INFORMATION IN WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTICARRIERS - The present invention relates to a wireless communication system, and more particularly, discloses a method and a device for transmitting/receiving channel state information in a wireless communication system supporting multicarriers. The method for transmitting downlink channel state information in the wireless communication system supporting downlink multicarriers, according to one embodiment of the present invention, comprises the following steps: receiving from at least one downlink carrier an uplink grant downlink control information (DCI) including a request for the channel state information; measuring the channel state information of at least one first type downlink carrier; and transmitting the measured channel state information on a physical uplink shared channel (PUSCH) resource indicated by the uplink grant DCI, wherein the downlink multicarriers comprise the first type downlink carrier and a second type downlink carrier, wherein the channel state information on the second type downlink carrier may not be transmitted. | 03-28-2013 |
20130083766 | METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING UPLINK CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM THAT SUPPORTS MULTIPLE CARRIERS - The present invention relates to a wireless communication system, and more specifically, to a method and a device for transmitting and receiving uplink control information in a wireless communication system that supports multiple carriers. According to one embodiment of the present invention, a method for allowing a terminal to transmit uplink control information (UCI) in a wireless communication system that supports multiple carriers comprises the steps of: receiving one or more uplink grants from a base station; obtaining an indicator which indicates an uplink carrier on which said UCI is transmitted from each of the one or more uplink grants; and transmitting said UCI through a physical uplink shared channel (PUSCH) on the uplink carrier indicated by said indicator, if the one or more uplink grants schedule uplink data transmission on the uplink carrier indicated by said indicator. | 04-04-2013 |
20130094384 | METHOD AND APPARATUS FOR PERFORMING CHANNEL MEASUREMENT IN A DISTRIBUTED MULTI-NODE SYSTEM - The present description relates to a method for receiving a reference signal (RS) in a distributed multi-node system, comprising: a step of receiving, from a base station, channel state information reference signal (CSI-RS) configuration information which indicates the configuration of the channel state information reference signal the power of which is nonzero; and a step of receiving a channel state information reference signal for at least one node in a cell on the basis of the channel state information reference signal configuration information, wherein said channel state information reference signal with non-zero power has at least one configuration, and is received via at least one subframe. | 04-18-2013 |
20130094468 | METHOD AND DEVICE FOR DETERMINING PRECODING INFORMATION FOR UPLINK MULTI-ANTENNA TRANSMISSION - The present invention relates to a method for allowing a terminal to transmit uplink data through an HARQ method in a wireless communication system that supports MIMO transmission comprises the steps of: transmitting a plurality of data blocks to a base station on the basis of an uplink grant; receiving, from the base station, control information which indicates a NACK for some data blocks among the plurality of data blocks; selecting, according to a predetermined rule shared in the terminal and the base station, a precoding matrix which is to be applied to the data blocks for which the NACK is indicated; and retransmitting the data blocks, for which the NACK is indicated, to the base station by applying the selected precoding matrix. | 04-18-2013 |
20130128833 | UPLINK POWER CONTROL METHOD AND USER EQUIPMENT - The present invention relates to an uplink power control method and user equipment, which involve determining a power correction factor by considering the number of antenna ports. According to the present invention, even when a base station transmits the same power control information to the user equipment, the user equipment maps the power control information to another power correction factor and determines an uplink transmission power depending on an uplink transmission condition. Thus, uplink power control can be performed in a more efficient manner. | 05-23-2013 |
20130129018 | METHOD AND APPARATUS FOR TRANSCEIVING A PRECODED SIGNAL IN A MULTIPLE ANTENNA SUPPORTED WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method for transmitting a signal from a transmitter to a receiver through N number of transmitting antennas (where N≧2), comprising: selecting a first and a second matrix from a first and a second codebook related to a first and a second precoding matrix indicator (PMI), respectively, and determining a precoding matrix on the basis of the first and second matrix; performing precoding by using the determined precoding matrix for L number of layers (where 1≦L≦N) to which a signal to be transmitted to the receiver is mapped; and transmitting the precoded signal to the receiver through the N number of transmitting antennas. Here, the first codebook includes one or more diagonal matrices having an N×N size, non-zero elements in the diagonal matrix has a predetermined phase value, and the second codebook includes one or more matrices having an N×L size. | 05-23-2013 |
20130148613 | METHOD AND DEVICE FOR TRANSMITTING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for reporting CSI in a wireless communication system, the method comprising: a step for configuring a plurality of serving cells; and a step for reporting the CSI of only one serving cell in a corresponding subframe, wherein the step for reporting the CSI of only one serving cell comprises: excluding reporting the CSI of a lower priority when CSI reports of the plurality of serving cells in the corresponding subframe collide; and excluding reporting the CSI of serving cells other than the serving cell having the smallest index when the CSI reports of different serving cells having the same priority in the corresponding subframe collide. | 06-13-2013 |
20130156125 | METHOD AND APPARATUS FOR TRANSMITTING SIGNALS USING CODEBOOKS IN A WIRELESS COMMUNICATION SYSTEM THAT SUPPORTS MULTIPLE ANTENNAS - The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for transmitting signals using codebooks in a wireless communication system that supports multiple antennas. A method in which a base station transmits downlink signals according to one embodiment of the present invention comprises the following steps: receiving a first precoding matrix indicator (PMI) and a second precoding matrix indicator from a terminal; determining a first matrix (W1) from a first codebook including precoding matrixes indicated by the first PMI, determining a second matrix (W2) from a second codebook, including precoding matrices indicated by the second PMI, and determining a precoding matrix (W) based on the first matrix (W1) and second matrix (W2); performing precoding on one or more layers, to which the downlink signals are mapped, using the determined precoding matrix (W); and transmitting the precoded signals to the terminal. Each of the precoding matrices included in the first codebook is a block diagonal matrix, and one block has, as compared to the other block, a form multiplied by a predetermined phase value. | 06-20-2013 |
20130163484 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING SIGNALS BY USING A PRESET FRAME STRUCTURE IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to an apparatus and a method for transmitting/receiving signals by using a preset frame structure in a wireless communication system. As there are difficulties ensuring the link capacity and quality for a high speed moving object with the existing frame structure and the antenna arrangement and communication system based on the existing scheme, a new frame structure needs to be proposed. According to one example of those newly proposed frame structures, one frame is composed of 8 subframes, each of the 8 subframes being composed of orthogonal frequency division multiple access (OFDMA) symbols in a range of 11 to 14, and the cyclic prefix (CP) length of the frame is ⅛ or less of an effective symbol length (e.g., ⅛, 1/16, 1/31, 1/64). | 06-27-2013 |
20130163521 | METHOD AND USER EQUIPMENT FOR TRANSMITTING UPLINK CONTROL INFORMATION - A user equipment (UE) transmits uplink control information (UCI) of 3 bits or more to a base station (BS) after modulating the UCI into 1-bit or 2-bit sub-UCI units. Here, the UE maps each 1-bit or 2-bit sub-UCI unit to one of a plurality of corner constellation points regardless of modulation order of data which is multiplexed with the UCI. The corner constellation points are points having a maximum Euclidean distance from among a plurality of constellation points corresponding to the modulation order. | 06-27-2013 |
20130163528 | METHOD FOR CONTROLLING UPLINK TRANSMISSION POWER FOR TRANSMITTING A PLURALITY OF CODE WORDS IN A WIRELESS COMMUNICATION SYSTEM THAT SUPPORTS A PLURALITY OF ANTENNAS, AND APPARATUS FOR PERFORMING THE METHOD - The present invention relates to a terminal which controls uplink transmission power for transmitting a plurality of code words in a wireless communication system that supports a plurality of antennas, and a method in which the terminal performs the control. In a terminal which controls uplink transmission power for transmitting a plurality of code words in a wireless communication system that supports a plurality of antennas, a receiver receives, from a base station, an indicator that concerns the determination of the transmission power for each code word of the plurality of code words. A processor determines uplink transmission power for transmitting the plurality of code words on the basis of the indication value of the indicator. If the indication value is zero, the processor allocates the same uplink transmission power to each of the plurality of code words. | 06-27-2013 |
20130170409 | APPARATUS AND METHOD FOR TRANSCEIVING A SIGNAL USING A PREDETERMINED FRAME STRUCTURE IN A WIRELESS COMMUNICATION SYSTEM - Disclosed are an apparatus and method for transceiving a signal using a frame structure appropriate for a high-speed moving body. The method for transceiving a signal using a predetermined frame structure according to the present invention comprises a step of transceiving a signal via a frame having the predetermined frame structure, wherein one frame is constituted by eight subframes, and said frame consists of a type-1 subframe consisting of six orthogonal frequency division multiple access (OFDMA) symbols and a type-2 subframe consisting of seven OFDMA symbols, and said frame has a cyclic prefix length which is either 0, 1/32 of the useful symbol length, 1/64 of the useful symbol length, or 1/128 of the useful symbol length. | 07-04-2013 |
20130176982 | METHOD AND DEVICE FOR TRANSMITTING CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system. In more detail, in relation to a method for a terminal to transmit ACK/NACK in a wireless communication system, an ACK/NACK transmission method includes: receiving at least one Physical Downlink Shared Channel (PDSCH); transmitting at least one ACK/NACK corresponding to the at least one PDSCH through a plurality of Physical Uplink Control Channel (PUCCH) formats; and, when the at least one ACK/NACK is transmitted using a first PUCCH format, transmitting at least one ACK/NACK in an antenna port transmission mode set for a second PUCCH format. | 07-11-2013 |
20130182789 | METHOD AND DEVICE FOR EFFICIENT FEEDBACK IN WIRELESS COMMUNICATION SYSTEM THAT SUPPORTS MULTIPLE ANTENNAS - The present invention relates to a method for allowing a terminal to transmit CSI for downlink transmission from a base station through an uplink comprises the steps of: receiving a downlink signal through a downlink channel; generating CSI that contains one or more indicators among an RI, a PMI, and CQI for the downlink channel; and transmitting the CSI through an uplink channel, wherein the CSI can contain one or more pieces of information among a first type of CSI which is determined on the basis of a rank N that is determined by the terminal and a second type of CSI which is determined on the basis of a rank that is restricted by a reference value M. | 07-18-2013 |
20130188591 | METHOD AND APPARATUS FOR EFFICIENT FEEDBACK IN A WIRELESS COMMUNICATION SYSTEM THAT SUPPORTS MULTIPLE ANTENNAS - The present invention relates to a method for transmitting channel state information for downlink multicarrier transmission comprises the following steps: generating channel state information for one or more downlink carriers; if two or more channel state information types for one or more downlink carriers collide in a physical uplink control channel (PUCCH) region of one uplink carrier, determining the channel state information type to be transmitted in the PUCCH region of one uplink carrier on the basis of the priority established in accordance with the reporting period of each piece of channel state information; and transmitting the channel state information corresponding to the determined channel state information type, wherein the priority may be established such that the channel state information having a longer reporting period has a higher priority than that of the channel state information having a shorter reporting period. | 07-25-2013 |
20130201932 | METHOD AND APPARATUS FOR TRANSCEIVING CONTROL INFORMATION FOR UPLINK MULTI-ANTENNA TRANSMISSION - The present description relates to a wireless communication system, and more particularly, to a method and apparatus for transceiving control information for uplink multi-antenna transmission. A method for transmitting control information for uplink multi-antenna transmission according to one embodiment of the present invention comprises the following steps: attaching a CRC parity bit to a PDCCH payload sequence containing uplink transmission resource allocation information; scrambling the CRC parity bit attached to the payload sequence to a bit sequence which indicates control information for uplink multi-antenna transmission; and transmitting the entirety of the sequence to which the scrambled CRC parity bit is attached to the payload sequence. | 08-08-2013 |
20130208677 | Method and Base Station for Transmitting Downlink Signal and Method and Equipment for Receiving Downlink Signal - A base station of the present invention configures resources in which a downlink signal is to be transmitted with zero power using resource sets defined for a specific number of antenna ports, regardless of the number of antenna ports actually configured in the base station, and transmits resource information indicating the configured resources to a user equipment. The user equipment of the present invention receives a downlink transmission from the base station, assuming that transmission power of resources corresponding to a resource set indicated by the resource information is zero. | 08-15-2013 |
20130279447 | METHOD AND APPARATUS FOR TRANSMITTING UPLINK REFERENCE SIGNAL IN A MULTI-ANTENNA WIRELESS COMMUNICATION SYSTEM - A method and apparatus for transmitting a Reference Signal (RS) during retransmission at a User Equipment (UE) in a multi-antenna wireless communication system are disclosed. The RS transmission method includes receiving an uplink grant from a Base Station (BS), initially transmitting data and an RS corresponding to each layer based on the uplink grant, receiving ACKnowledgment/Negative ACKnowledgment (ACK/NACK) information for the initially transmitted data, and retransmitting the RS corresponding to each layer and the data according to the ACK/NACK information. The retransmission includes initializing a cyclic shift value for the RS corresponding to each layer according to a cyclic shift field for RSs included in the uplink grant. | 10-24-2013 |
20130322361 | METHOD AND APPARATUS FOR EFFICIENT FEEDBACK IN WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTIPLE ANTENNAS - The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for efficient feedback in a wireless communication system that supports multiple antennas. According to one embodiment of the present invention, a method for transmitting channel status information, CSI, for a downlink transmission through uplink comprises: generating a rank indicator (RI), a first precoding matrix indicator (PMI), a second PMI anc channel quality indicator (CQI) as the CSI for the downlink transmission; and transmitting at least one of the RI, the first PMI, the second PMI and the CQI according to a predetermined order, wherein, when the RI or the first PMI is dropped, the CSI following the dropped CSI is generated based on a RI or a first PMI transmitted previously, wherein a precoding matrix used for the downlink transmission is determined based on a combination of the first PMI and the second PMI. | 12-05-2013 |
20130343327 | METHOD AND APPARATUS FOR TRANSMITTING CHANNEL QUALITY CONTROL INFORMATION USING PUCCH FORMAT 3 IN A WIRELESS ACCESS SYSTEM - A method of coding and transmitting channel quality control information through a physical uplink control channel (PUCCH) is disclosed. The method of transmitting channel state control information (CQI and/or PMI) in a wireless access system includes performing channel coding with respect to the channel state control information according to a payload size of the channel state control information, performing rate matching with respect to the channel state control information coded through channel coding according to physical uplink control channel (PUCCH) format 3, and transmitting the channel state control information using the PUCCH format 3. | 12-26-2013 |
20140010199 | METHOD FOR TRANSMITTING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - A method for transmitting information data by using a Reed-Muller coding scheme in a wireless communication system is provided. The method includes configuring a number of resource elements for transmitting the information data; generating coded information data having a specific bit size by applying RM coding to the information data; performing rate matching to the coded information data so that the rate-matched information data can correspond to the configured resource elements; and transmitting the rate-matched information data by using the configured number of resource elements, where a minimum value Q′ | 01-09-2014 |
20140056253 | METHOD FOR TRANSMITTING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - A method for transmitting information data by using a Reed-Muller coding scheme in a wireless communication system is disclosed. The method includes configuring a number of resource elements for transmitting the information data; dividing the information data to first information data and second information data if a bit size O of the information data is equal to or larger than a predetermined number; applying RM coding on each of the first information data and the second information data; concatenating the coded first information data and the coded second information data, and transmitting the concatenated data by using the predetermined number of resource elements, wherein a minimum value Q′ | 02-27-2014 |
20140064397 | METHOD AND APPARATUS FOR EFFICIENT FEEDBACK IN A WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTIPLE ANTENNAS - A method and apparatus for performing effective feedback in a wireless communication system supporting multiple antennas. A method for transmitting CSI of downlink transmission via uplink in a wireless communication system includes transmitting a joint-coded rank indicator (RI) and a first wideband (WB) precoding matrix indicator (PMI) at a first subframe, and transmitting a wideband channel quality indicator (WB CQI) and a second WB PMI at a second subframe. A user equipment (UE) preferred precoding matrix is indicated by a combination of the first PMI and the second PMI. If the RI is Rank-1 or Rank-2, the first PMI indicates one of subsets each having 8 indexes from among 16 indexes of the first PMI of a precoding codebook. | 03-06-2014 |
20140086352 | METHOD AND APPARATUS FOR EFFICIENT FEEDBACK IN A WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTIPLE ANTENNA - A method and apparatus for transmitting effective channel status information (CSI) in a wireless communication system supporting multiple carriers are disclosed. A method for transmitting CSI of DL transmission via uplink in a wireless communication system includes transmitting a rank indicator (RI) at a first subframe, and transmitting a first precoding matrix indicator (PMI), a second PMI, and a wideband (WB) channel quality indicator (CQI) at a second subframe. UE preferred precoding matrix is indicated by a combination of the first PMI and the second PMI. A subsampled codebook for each precoding codebook of ranks from Rank-1 to Rank-4 is applied to the first PMI and the second PMI, and a sum of the first PMI and the second PMI for each of Rank-1 to Rank-4 is comprised of 4 bits. | 03-27-2014 |
20140092832 | METHOD AND APPARATUS FOR TRANSMITTING CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system, and more specifically, to an ACK/NACK (Acknowledgement/Negative ACK) transmission method in a wireless communication system and an apparatus therefor. The ACK/NACK transmission method preformed by user equipment in a wireless communication system comprises: receiving a PDCCH (Physical Downlink Control Channel); receiving a PDSCH (Physical Downlink Shared Channel) indicated by the PDCCH; and transmitting an ACK/NACK for the PDSCH. According to the ACK/NACK transmission method and apparatus of the invention. | 04-03-2014 |
20140198682 | METHOD AND APPARATUS FOR PERFORMING EFFECTIVE FEEDBACK IN WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTIPLE ANTENNAS - A method for transmitting channel status information (CSI) of downlink multi-carrier transmission includes generating the CSI including at least one of a rank indicator (RI), a first precoding matrix index (PMI), a second PMI and a channel quality indicator (CQI) for one or more downlink carriers, the CQI being calculated based on precoding information determined by a combination of the first and second PMIS, determining, when two or more CSIs collide with one another in one uplink subframe of one uplink carrier, a CSI to be transmitted on the basis of priority, and transmitting the determined CSI over a uplink channel. If a CSI including an RI or a wideband first PMI collides with a CSI including a wideband CQI or a subband CQI, the CSI including a wideband CQI or a subband CQI has low priority and is dropped. | 07-17-2014 |
20140341159 | METHOD AND APPARATUS FOR TRANSMITTING UPLINK REFERENCE SIGNAL IN A MULTI-ANTENNA WIRELESS COMMUNICATION SYSTEM - A method for transmitting signals at a User Equipment (UE) in a multi-antenna wireless communication system is discussed. The method includes receiving an uplink grant from a Base Station (BS); transmitting transport blocks and Reference Signals (RSs) for the transport blocks via a plurality of layers based on the uplink grant to the BS; receiving Negative ACKnowledgment (NACK) information for at least one transport block among the transport blocks from the BS; and retransmitting the at least one transport block and the RS for the at least one transport block via at least one layer to the BS. | 11-20-2014 |
20150043509 | METHOD FOR PERFORMING CHANNEL INTERLEAVING IN A MULTI-ANTENNA WIRELESS COMMUNICATION SYSTEM, AND APPARATUS FOR SAME - A method of transmitting a signal to a base station at a user equipment (UE) in a multi-antenna wireless communication system, can include generating interleaver input vector sequences, wherein the interleaver input vector sequences comprise vectors having a predetermined bit size, mapping the interleaver input vector sequences to an interleaver matrix, generating an output bit sequence by reading the interleaver matrix column by column, and transmitting the output bit sequence to the base station, wherein the predetermined bit size is defined by a product of a modulation order Q | 02-12-2015 |
20150063267 | METHOD AND APPARATUS FOR PERFORMING EFFICIENT FEEDBACK IN WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTIPLE ANTENNA - A method for transmitting channel status information (CSI) of downlink transmission via uplink in a wireless communication system includes transmitting a rank indicator (RI) and a precoder type indicator (PTI) at a first subframe, transmitting at a second subframe a first precoding matrix indicator (PMI) when the PTI has a first value and transmitting a second PMI and a wideband channel quality indicator (WB CQI) when the PTI has a second value, and transmitting at a third subframe a second PMI and a WB CQI when the PTI has a first value and transmitting a subband (SB) CQI and a second PMI when the PTI has a second value. A user equipment (UE) preferred precoding matrix is indicated by a combination of the first PMI and the second PMI. Subsampled codebooks of precoding codebooks of individual Rank-2, Rank-3 and Rank-4 are applied to the second PMI. | 03-05-2015 |
Patent application number | Description | Published |
20100178927 | Method For Transmitting Pilot Allocation Information To User Equipment In A Multi-User Multiple Input Multiple Output System - A method for transmitting pilot allocation information from a base station for reception by at least one of a plurality of mobile stations participating in a Multi-User Multiple Input Multiple Output (MU-MIMO) communication, the method including the steps of generating pilot allocation information for the one mobile station, and transmitting the pilot allocation information for reception by the one mobile station, wherein the pilot allocation information includes at least one of a total number K of pilot streams allocated to the plurality of mobile stations, an index k representing a first pilot stream of one or more pilot streams allocated to the one mobile station among a plurality of pilot streams defined for a pilot pattern selected for the MU-MIMO communication, a number M of the pilot streams allocated to the one mobile station, and bitmap information indicating the pilot streams allocated to the one mobile station among the plurality of pilot streams defined for the pilot pattern. | 07-15-2010 |
20100202372 | Method and apparatus of transmitting feedback message in wireless communication system - A method and apparatus of transmitting a feedback message in a wireless communication system is provided. A mobile station receives information on a first period and a second period from a base station and transmits a first feedback message in every first period or a second feedback message in every second period to the base station over a primary fast feedback channel (PFBCH). The first feedback message comprises a channel quality indicator (CQI) for a subband selected from a plurality of subbands, and the second feedback message comprises a subband index of the selected subband. | 08-12-2010 |
20100298003 | METHOD FOR TRANSMITTING PILOT ALLOCATION INFORMATION TO USER EQUIPMENT IN A MULTI-USER MULTIPLE INPUT MULTIPLE OUTPUT SYSTEM - A method for transmitting pilot allocation information from a base station for reception by at least one of a plurality of mobile stations participating in a Multi-User Multiple Input Multiple Output (MU-MIMO) communication, the method including the steps of generating pilot allocation information for the one mobile station, and transmitting the pilot allocation information for reception by the one mobile station, wherein the pilot allocation information includes at least one of a total number K of pilot streams allocated to the plurality of mobile stations, an index k representing a first pilot stream of one or more pilot streams allocated to the one mobile station among a plurality of pilot streams defined for a pilot pattern selected for the MU-MIMO communication, a number M of the pilot streams allocated to the one mobile station, and bitmap information indicating the pilot streams allocated to the one mobile station among the plurality of pilot streams defined for the pilot pattern. | 11-25-2010 |
20120224660 | Method and Apparatus for Performing Demapping in Wireless Communication System - A method and apparatus for performing demapping in a wireless communication system utilizing a modulo operation are disclosed. The demapping method of a receiver in a wireless communication system includes receiving an input signal and first information indicating whether a first modulo operation is performed on the input signal from a transmitter; if the first information indicates execution of the first modulo operation, performing a second modulo operation of the input signal, and acquiring a reception signal; generating a maximum function value having a highest probability that the reception signal corresponds to a candidate constellation point of an extended constellation; and generating a log-likelihood ratio (LLR) using the generated maximum function value. | 09-06-2012 |
20120258723 | APPARATUS FOR TRANSMITTING AND RECEIVING SIGNALS IN MULTI-NODE SYSTEM AND METHOD THEREOF - In a multi-node system including a user equipment and a plurality of nodes connected to each other, a plurality of the nodes includes a 1 | 10-11-2012 |
20130114557 | DEVICE AND METHOD FOR TRANSMITTING AND RECEIVING CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM SIMULTANEOUSLY SUPPORTING A PLURALITY OF WIRELESS COMMUNICATION METHODS - Disclosed are a device and method for transmitting/receiving control information in a wireless communication system simultaneously supporting a first wireless communication method and a second wireless communication method. In the base station device transmitting control information according to the present invention, the transmitter may transmit second control information including information on the resource size of the first control information for uplink power control. At this point, the resource size of the first control information is determined by the number of uplink subframes and downlink subframes available in one frame, the number of fast feedback channels (FFBCHs), and a ceil function rounding off to a whole number. | 05-09-2013 |
20130116002 | TERMINAL DEVICE AND METHOD FOR CONTROLLING UPLINK TRANSMISSION POWER FOR INITIAL DATA TRANSMISSION AFTER NETWORK ENTRY IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a terminal device and method for controlling uplink transmission power for initial data transmission after network entry in a wireless communication system. The terminal device according to the present invention comprises a processor and a transmitter. The processor determines an initial offset value for determining uplink transmission power for an initial data transmission using the power value ultimately used in an initial ranging transmission and the number of initial ranging subcarriers, and determines an uplink transmission power value for an initial data transmission using the determined initial offset value. The transmitter transmits initial data to a base station with the determined uplink transmission power value for an initial data transmission. | 05-09-2013 |
20130163484 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING SIGNALS BY USING A PRESET FRAME STRUCTURE IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to an apparatus and a method for transmitting/receiving signals by using a preset frame structure in a wireless communication system. As there are difficulties ensuring the link capacity and quality for a high speed moving object with the existing frame structure and the antenna arrangement and communication system based on the existing scheme, a new frame structure needs to be proposed. According to one example of those newly proposed frame structures, one frame is composed of 8 subframes, each of the 8 subframes being composed of orthogonal frequency division multiple access (OFDMA) symbols in a range of 11 to 14, and the cyclic prefix (CP) length of the frame is ⅛ or less of an effective symbol length (e.g., ⅛, 1/16, 1/31, 1/64). | 06-27-2013 |
20130165115 | EFFICIENT HANDOVER/SCANNING TRIGGER METHOD IN A BROADBAND WIRELESS ACCESS SYSTEM SUPPORTING A MULTICARRIER - The present invention relates to a broadband wireless access system, and more particularly, to a method of preventing a terminal from performing an unnecessary operation in a multicarrier environment, and a device for performing the method. An operating method of a terminal operating as a carrier aggregation mode in a broadband wireless access system supporting a multi carrier according to an embodiment of the present invention includes: obtaining system information on a neighbor base station and trigger function information applied to a carrier aggregation mode through a first broadcast message broadcasted from a serving base station; scanning a channel state for at least one carrier of a neighbor base station supporting a multicarrier by using the obtained system information; and transmitting a second message to the serving base station if the scanning result satisfies a condition based on the trigger function information. | 06-27-2013 |
20130170409 | APPARATUS AND METHOD FOR TRANSCEIVING A SIGNAL USING A PREDETERMINED FRAME STRUCTURE IN A WIRELESS COMMUNICATION SYSTEM - Disclosed are an apparatus and method for transceiving a signal using a frame structure appropriate for a high-speed moving body. The method for transceiving a signal using a predetermined frame structure according to the present invention comprises a step of transceiving a signal via a frame having the predetermined frame structure, wherein one frame is constituted by eight subframes, and said frame consists of a type-1 subframe consisting of six orthogonal frequency division multiple access (OFDMA) symbols and a type-2 subframe consisting of seven OFDMA symbols, and said frame has a cyclic prefix length which is either 0, 1/32 of the useful symbol length, 1/64 of the useful symbol length, or 1/128 of the useful symbol length. | 07-04-2013 |
20130178215 | METHOD AND APPARATUS FOR EFFICIENT ZONE SWITCH OPERATION IN A BROADBAND WIRELESS ACCESS SYSTEM - A wireless access system and, more particularly, a method and apparatus for more efficiently performing zone switch are disclosed. The method of performing zone switch by an advanced mobile station (AMS) in a mixed-mode advanced base station (ABS) which operates in a mixed mode of a broadband wireless access system includes receiving a ranging response (RNG-RSP) message including system information of an AMS support zone from a legacy zone (LZone) of the ABS, and performing ranging to the AMS support zone using the system information. | 07-11-2013 |
20130272265 | METHOD OF CHANGING A ZONE IN A BROADBAND WIRELESS ACCESS SYSTEM - The present invention relates to a broadband wireless access system, and more particularly, to a method of performing a zone change more promptly in a base station where an advanced terminal operates in a mix mode. A method for an advanced terminal (AMS) to perform a zone change in an advanced base station (mix mode ABS), which operates in a mix mode of a broadband wireless access system according to an embodiment of the present invention includes: receiving a ranging response message (RNG-RSP) including system information on an advanced terminal supporting zone (MZone) from a legacy zone (LZone) of the advanced base station; and performing ranging in the advanced terminal supporting zone by using the system information. | 10-17-2013 |
20130281093 | METHOD FOR CONTROLLING UPLINK POWER IN A BROADBAND WIRELESS ACCESS SYSTEM - The present invention relates to a broadband wireless access system, and more particularly, to a method for efficiently determining power for ranging performed by a terminal on a target base station or a target region during handover or during changing of a region. A method for controlling uplink power for network reentry of a terminal from a first region to a second region in a broadband wireless access system, according to an embodiment of the present invention, comprises the steps of: receiving a media access control (MAC) management message including a power control parameter that is to be applied to the second region from the first region; and performing ranging to the second region by applying the power control parameter. | 10-24-2013 |
20130315389 | TRAFFIC ENCRYPTION KEY MANAGEMENT FOR MACHINE TO MACHINE MULTICAST GROUP - A method for decrypting multicast data by a mobile station in a wireless communication system is described. The method includes receiving an identifier of a group from a base station, receiving parameters for generating a group traffic key from the base station, wherein the parameters include an authentication key for the group, a group security seed and a counter, performing a key derivation function to generate the group traffic key based on the identifier and the parameters and decrypting multicast data using the group traffic key. | 11-28-2013 |
20140044205 | METHOD OF TRANSMITTING AND RECEIVING MIMO FEEDBACK INFORMATION IN WIRELESS COMMUNICATION SYSTEM, MOBILE STATION AND BASE STATION - A method of transmitting an MIMO (multiple input multiple output) feedback information, which is transmitted by a mobile station in a wireless communication system, is disclosed. The present invention includes sending a ranging request message to a base station and receiving a ranging response message from the base station in response to the ranging request message, wherein the mobile station comprises a fixed M2M (machine to machine) device and wherein the ranging request message contains the MIMO feedback information. | 02-13-2014 |
20140064229 | METHOD AND APPARATUS FOR TRANSMITTING DISCOVERY SIGNAL IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system, and more specifically to a method and an apparatus for transmitting a discovery signal in a wireless communication system. According to one aspect of the present invention, a method for enabling a terminal for supporting multiple radio access technologies to perform communication includes the steps of: communicating first data to a base station; receiving first information for notifying the presence of a first AP from the first AP as at least one AP among a plurality of APs; and communicating second data using the first AP, wherein the first information is received by using a first resource as at least a part of all resources which the base station uses, a first radio access technology can be applied between the terminal and the base station, and a second radio access technology can be applied between the terminal and the first AP. | 03-06-2014 |
20140219234 | METHOD FOR TRANSMITTING POWER HEADROOM REPORT, AND APPARATUS FOR SAME - Disclosed are a method for transmitting a power headroom report (PHR) and a terminal apparatus for same. The method for transmitting a PHR from a terminal in a network, which includes a base station and at least one cooperative node performing cooperative communication with the base station, includes a step of determining a sounding reference symbol (SRS) transmission power for transmitting SRSs in a specific serving cell, wherein the determined SRS transmission power is a value determined for the transmission of the SRSs to a plurality of nodes including a first node corresponding to the base station and the at least one cooperative node. | 08-07-2014 |
20140341312 | METHOD FOR FEEDING BACK CODEBOOK-BASED PRECODING MATRIX INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - A method for feeding back codebook-based precoding matrix information by a receiving side includes estimating a channel through a receiving signal received from a transmitting side; selecting first and second precoding matrix indexes for indicating precoding matrices selected in a predefined codebook based upon said estimated channel; and transmitting said selected first and second precoding matrix indexes to said transmitting side, wherein said predefined codebook supports antenna patterns at the receiving side, precoder (W) in the predefined codebook is expressed as a multiplication of two precoding matrices (W | 11-20-2014 |
20150016383 | METHOD FOR CHECKING AVAILABILITY OR STATE OF PEER ENTITY - A method for checking availability of one of Television White Space (TVWS) devices by a management device for managing the TVWS devices to co-exist in a TVWS according to one embodiment of the present invention can comprise the following steps: receiving a registration request message for registering the TVWS device or updating the registration of the TVWS device from the TVWS device; registering the TVWS device or updating the registration of the TVWS device; transmitting a check request message for checking the availability of the TVWS device to the TVWS device after registering the TVWS device or updating the registration of the TVWS device, the check request message including a time parameter; and determining the availability of the TVWS device on the basis of the time parameter. | 01-15-2015 |
20150038139 | METHOD FOR REGISTERING WSO IN COEXISTENCE NETWORK - Provided is a method for registering TVWS devices for coexistence of television white space (TVWS) devices in a television white space (TVWS), the method performed a server and comprising receiving a registration request message for registration or update registration of at least one TVWS device from at least one management device; performing the registration or update registration of at least one TVWS device; and in response to the registration request message, transmitting a registration response message to the at least one management device, wherein the registration response message includes at least one of an identifier field of an interface device connected to the at least one TVWS device, a status field indicating a result of the registration or the update registration, and a reason field indicating a reason why the registration or the update registration is failed if the registration or the update registration is failed. | 02-05-2015 |
20150072702 | METHOD FOR SELECTING MASTER CM IN COEXISTENCE NETWORK - Disclosed according to one embodiment of the present invention is a method whereby a management device, which enables coexistence of television white space (TVWS) devices in a TVWS, sends a server a request for the selection of a master management device, the method comprising the steps of: determining whether a trigger condition for the process of selecting the master management device is satisfied; judging the management device as a candidate slave management device, and the other management devices as candidate master management devices, provided that the trigger condition is satisfied; and initiating the process for selecting the master management device, wherein the trigger condition may be based on the load balance parameter or geographical coverage parameter of the management device. | 03-12-2015 |
Patent application number | Description | Published |
20110059745 | METHOD OF CONTROLLING A MONITORING OPERATION OF PHYSICAL DOWNLINK CHANNEL IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system and a terminal providing a wireless communication service and to a method by which a base station and a terminal transmit and receive data in an evolved universal mobile telecommunications system (E-UMTS) evolved from universal mobile telecommunications system (UMTS) or a long term evolution (LTE) system, and more particularly, to a method of controlling a monitoring operation of a physical downlink channel during a radio resource allocation procedure such that the radio resource allocation procedure can be performed with a minimum power usage by the terminal. | 03-10-2011 |
20110183661 | METHOD OF PERFORMING A MINIMIZATION OF DRIVE TEST (MDT) FOR SPECIFIC AREA IN WIRELESS COMMUNICATION SYSTEM - Disclosed is a wireless communication system and terminal for providing a wireless communication service, and more particularly, a method of effectively perform an operation of MDT (Minimization Driving Test) for a specific area or a specific cell in an Evolved Universal Mobile Telecommunications System (E-UMTS) evolved from a UMTS, Long Term Evolution (LTE) System or LTE-Advanced (LTE-A) system. | 07-28-2011 |
20130058220 | METHOD FOR TRANSMITTING BUFFER STATUS REPORT FROM TERMINAL IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - Disclosed is a method for transmitting a buffer status report from a terminal in a wireless communication system. In particular, the method comprises the steps of: generating buffer status report information; and transmitting the buffer status report information to a base station, wherein the buffer status report information includes a first field containing a plurality of indicators and at least one second field indicating a buffer size index, wherein each of the plurality of indicators indicates the presence or absence of the second field corresponding to each of at least one logical channel group (LCG). Preferably, the buffer status report information may contain a third field corresponding to each of the at least one second field, and each of the third fields may contain an identifier of a buffer size table reference by the buffer size index contained in the second field. | 03-07-2013 |
20130070685 | METHOD FOR ALLOWING TERMINAL TO TRANSMIT POWER HEADROOM INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - The present invention relates to a wireless communication system, and more specifically, to a method for allowing a terminal to transmit power headroom information in a wireless communication system and a device therefor. According to one aspect of the present invention, a method for allowing a terminal, in which at least one serving cell is set, to transmit power headroom information comprises the steps of: generating said power headroom information; and transmitting the power headroom information to a base station. In this case, said power headroom information includes a first field that includes a plurality of indicators, and at least one second field that indicates a power headroom level, wherein each of the plurality of indicators is capable of indicating whether at least one said second field for at least one of each of the serving cell exists. | 03-21-2013 |
20130090142 | METHOD OF AVOIDING IDC INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - Disclosed is a method of transmitting, by a terminal, IDC (In-Device Coexistence) interference information to a base station, according to the present invention. Specifically, the invention comprises the steps of: receiving quality measurement configuration information from the base station; measuring quality using the information when operations of one or more second communication modules coexisting in the terminal are sensed; setting a frequency used in the measuring quality as a disabled frequency due to the IDC interference when the measured quality is less than a threshold value; and transmitting information about the disabled frequency to the base station. | 04-11-2013 |
20130107790 | METHOD FOR USER EQUIPMENT TRANSMITTING SERVICE PREFERENCE INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME | 05-02-2013 |
20130107864 | METHOD OF PROVIDING SERVICE TO USER EQUIPMENT IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREOF | 05-02-2013 |
20130114405 | METHOD FOR RECEIVING SERVICE AT USER EQUIPMENT IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR THE SAME - A method for receiving MBMS (Multimedia Broadcast Multicast Service) service at a user equipment camping on a first frequency in a wireless communication system is disclosed. The method comprises receiving the MBMS on a second frequency without camping on the second frequency from a network, if being able to receive the MBMS on the second frequency while camping on the first frequency. | 05-09-2013 |
20130121204 | METHOD FOR ALLOWING TERMINAL TO REPORT MEASUREMENT RESULT FOR MDT TO BASE STATION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - The present invention provides a method for a terminal to report the measurement result of a minimization of drive test (MDT) in a wireless communication system. More specifically, the method comprises the steps of: receiving MDT setup information from said base station; performing cell measurement on the basis of said MDT setup information; storing the result of said cell measurement in an MDT log on the basis of a valid time that precedes as much as the second interval from storage times, at every storage time of a first interval unit that is contained in said MDT setup information; and reporting to said base station the MDT log in which the result of said cell measurement is stored. | 05-16-2013 |
20130130616 | METHOD OF TRANSMITTING MESSAGE AT USER EQUIPMENT IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREOF - A method for transmitting a message by a user equipment (UE) in a wireless communication system is disclosed. The method comprises receiving system information including a specific identifier from a network, receiving a request message from the network, and determining whether or not to transmit a response message to the network in response to the request message based on the specific identifier included in the system information. | 05-23-2013 |
20130142104 | METHOD OF PROVIDING SERVICE TO USER EQUIPMENT IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREOF - A method for prioritizing frequencies by a user equipment (UE) in a wireless communication system is disclosed. The method comprises identifying a plurality of UE frequencies, each frequency having a corresponding priority; and considering a specific frequency to be the highest priority among the plurality of frequencies, wherein the specific frequency is for a MBMS (Multimedia Broadcast Multicast Service) service. | 06-06-2013 |
20130148490 | METHOD AND APPARATUS FOR RECONFIGURING CONNECTION TO BASE STATION AT RELAY NODE IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method of processing a signal in a wireless communication system. In particular, the method comprises steps of setting an indicator indicating that an integrity failure occurs and transmitting a first message associated with a connection reestablishment including the indicator to a network. The integrity failure means that data is inserted or replaced by an unauthorized third party. | 06-13-2013 |
20130176885 | METHOD FOR ADJUSTING CELL RESELECTION PRIORITY FOR AVOIDING IDC INTERFERENCE IN WIRELESS COMMUNICATION SYSTEM AND DEVICE FOR SAME - The present invention discloses a method for a first communication module of a user equipment measuring for cell reselection in a wireless communication system. More particularly, the present invention comprises the following steps: receiving a first message including at least one frequency priority list from a base station; receiving a second message from at one or more second communication modules which coexist in the terminal; and measuring the frequency based on the at least one frequency priority list and the operating frequency information that is included in the second message, when the second message indicates the beginning of the operation of the one or more second communication modules. | 07-11-2013 |
20130176891 | METHOD FOR MEASURING TO ELIMINATE IDC INTERFERENCE IN WIRELESS COMMUNICATION SYSTEM AND DEVICE FOR SAME - The present invention discloses a method for a first communication module of a user equipment measuring for eliminating in-device coexistence (IDC) interference in a wireless communication system. More particularly, the present invention comprises the following steps: receiving a message from one or more second communication modules which coexists in the terminal; performing inter-frequency measurement based on the setting information related to measuring when the message indicates the beginning of the operation of the second communication module; and reporting to the base station the result of the inter-frequency measurement. | 07-11-2013 |
20130189978 | METHOD OF RECEIVING PLMN INFORMATION AT A TERMINAL IN A WIRELESS COMMUNICATION, AND APPARATUS FOR SAME - Disclosed is a method of receiving PLMN (Public Land Mobile Network) information at a terminal in a wireless communication. In particular, the method of the present invention comprises the steps of receiving system information including a PLMN list and a prohibition indicator for limiting access to at least one PLMN of the PLMN list and performing access limitation to the specific network during a specific time. | 07-25-2013 |
20130237267 | RRC CONNECTION METHOD AND DEVICE THEREFOR IN WIRELESS COMMUNICATION SYSTEM - The present application relates to a method for a terminal having latency tolerance to perform procedures for connection with a network in a wireless communication system. Specifically, the method is characterized in comprising the steps of: transmitting a connection request message to the network; receiving a connection set message from the network in response to the connection request message; and transmitting a connection set completion message to the network, wherein the connection request message comprises a low priority connection indicator. | 09-12-2013 |
20130288679 | METHOD FOR RESTRICTING THE CELL ACCESS OF A TERMINAL IN A WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR - The present application relates to a method in which a terminal performs a cell access procedure in a wireless communication system. More particularly, the method comprises: a step of receiving, from a first cell, a message including one or more access-restricting network identifiers or one or more access-restricting area identifiers: a step of restricting, for a predetermined period of time, access to at least one second cell belonging to the network corresponding to said one or more access-restricting network identifiers or the area corresponding to said one or more access-restricting area identifiers, as well as access to said first cell; and a step of restarting access to the first cell and to said at least one second cell after said predetermined period of time elapses. | 10-31-2013 |
20130294281 | MEASUREMENT REPORTING METHOD OF TERMINAL IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - The present invention relates to a method for processing a signal of a terminal in a wireless communication system. Specifically, the method comprises the steps of: performing a measurement on a first cell in one or more specific subframes; configuring report information which includes the measurement result, together with an indicator indicating that the measurement has been performed in the one or more specific subframes; and transmitting the report information to a second cell, wherein the one or more specific subframes are configured to have different interference levels from other subframes. | 11-07-2013 |
20130294325 | METHOD FOR TRANSMITTING/RECEIVING MESSAGE FOR RECEIVING BROADCASTING SERVICE RECEPTION IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - In the present invention, a method for a user equipment transmitting/receiving a message with a network in a wireless communication system is disclosed. More particularly, the method comprises the following steps: transmitting to the network a connection request message including a first indicator; receiving from the network a connection setting message including a second indicator, as a reply to the connection request message; receiving the connection setting message and then transmitting to the network a broadcast-related message; and transmitting the broadcast-related message and then disconnecting with the network based on the second indicator. | 11-07-2013 |
20130301468 | METHOD AND APPARATUS FOR IN-DEVICE COEXISTENCE INTERFERENCE INFORMATION IN WIRELESS COMMUNICATION SYSTEM - A method for transmitting interference information at a mobile station in a wireless communication system is disclosed. The method comprises detecting a change of interference information associated with a interference frequency; and transmitting a message including the interference information associated with the interference frequency to the network, if a timer configured based on the interference frequency is not running. | 11-14-2013 |
20130301537 | METHOD FOR TRANSMITTING IDC INTERFERENCE INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - The present invention relates to a method for transmitting In-Device Coexistence (IDC) interference information to a base station from a first communication module of a terminal in a wireless communication system. More specifically, the method is characterized by comprising: calculating a value representing the reduction in transmission power of the first communication module for avoiding the effect of interference of at least one second communication module which coexists in the terminal; and transmitting IDC interference information that includes the calculated reduced power value to a base station, if the calculated reduced power value exceeds a threshold value. | 11-14-2013 |
20130308545 | METHOD FOR USER EQUIPMENT TRANSMITTING/RECEIVING DATA IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - In the present invention, disclosed is a method for a user equipment transmitting/receiving a signal with a network in a wireless communication system, and more particularly, to a method comprising the following steps: transmitting to the network a connection request message including an indicator for indicating a short transmission; receiving from the network a connection setting message as a reply to the connection request message; and connecting with the network and transmitting a connection setting completion message to the network. | 11-21-2013 |
20130316712 | METHOD AND APPARATUS FOR PERFORMING HANDOVER IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method of performing a handover of a mobile device by a first base station. The present invention includes transmitting a handover request message to a second base station, receiving a handover response message in response to the handover request message from the second base station, wherein the handover response message includes subframe configuration information related to the second base station, and performing the handover of the mobile device based on the received handover response message. | 11-28-2013 |
20130322320 | APPARATUS FOR PERFORMING A CELL SELECTION IN A WIRELESS COMMUNICATION SYSTEM AND METHOD THEREOF - The present invention relates to a method of performing a cell selection by a User Equipment (UE) in a wireless communication system. The present invention includes receiving a plurality of priority information, wherein each of the plurality of priority information includes an identifier, determining priority information having an identifier matched with an identifier stored in the UE, and performing the cell selection based on the determined priority information. | 12-05-2013 |
20130324129 | METHOD FOR PERFORMING HANDOVER IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - The present invention relates to a method for a user equipment performing a handover in a wireless communication system, and more specifically, comprises the following steps: transmitting to a serving cell a measurement report message on a target cell including an indicator related to a specific service; receiving from the serving cell a handover command message including information on the specific service, which is provided by the target cell; receiving resource allocation information on the specific service from the target cell using the information on the specific service; and transmitting a handover completion message to the target cell. | 12-05-2013 |
20130329625 | METHOD OF TRANSMITTING RANDOM ACCESS RESPONSE SIGNAL IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREOF - A method of transmitting a random access response signal in a wireless communication system is disclosed. The method includes transmitting a random access preamble to a base station, receiving a random access response included in a data region of a specific subframe from the base station, and transmitting an uplink message to the base station based on uplink grant included in the random access response. If the data region is set to be transmitted through multiple layers based on a UE-specific reference signal and the specific subframe is a Multicast Broadcast Single Frequency Network (MBSFN) subframe, the data region is demodulated based on the UE-specific reference signal on the assumption that the data region is transmitted via a predetermined antenna port using a single-antenna transmission scheme. | 12-12-2013 |
20130343280 | METHOD FOR USER EQUIPMENT SETTING SECURITY WITH NETWORK IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - In the present invention, a method for a user equipment transmitting/receiving a signal with a network in a wireless communication system is disclosed. More particularly, the method comprises the following steps: receiving security setting information from the network; transmitting or receiving data with the network based on the security setting information; receiving a disconnection message from the network; releasing connection from the network; and actuating a timer when an indicator for maintaining the security setting is received from the network, wherein the security setting information is maintained while the timer is actuated. | 12-26-2013 |
20140029594 | METHOD FOR USER EQUIPMENT SETTING CONNECTION WITH NETWORK IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - In the present invention, a method for a user equipment setting a connection with a network in a wireless communication system is disclosed, and more particularly, the method comprises the following steps: receiving a plurality of timer values from the network through a system information; and transmitting a connection request message including a reason for a specific connection to the network, wherein each of the plurality of timer values are used when transmitting the connection request message, depending on a respective corresponding connection reason, and the reason for the specific connection corresponds to a specific timer value from the plurality of timer values. | 01-30-2014 |
20140050102 | METHOD FOR TRANSMITTING UPLINK SIGNAL AND APPARATUS THEREFOR - In the present invention, a user equipment measures a wireless signal from a specific cell, and decides whether to store and/or report to a base station information on a wireless link failure, if the wireless link failure occurs, depending on the type of a cell which is measured or the type of a frame in which the wireless link failure occurs. According to the present invention, the user equipment can be prevented from reporting unnecessary information to a network. | 02-20-2014 |
20140056246 | METHOD OF CONTROLLING TRANSMIT POWER OF UE IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR THE SAME - Disclosed herein is a method of transmitting a signal at a user equipment (UE) in a wireless communication system. The method includes receiving a radio resource control (RRC) configuration message from a network; determining a preference value relating to power saving after receiving the RRC configuration message; and transmitting the determined preference value relating to the power saving to the network. | 02-27-2014 |
20140105192 | METHOD FOR TERMINAL TO CONTROL TIMING ADVANCE GROUP IN A WIRELESS COMMUNICATION SYSTEM, AND DEVICE FOR SAME - The present application discloses a method in which a terminal controls a timing group in a wireless communication system. Specifically, the method is characterised by comprising: a step for measuring the difference between the downlink timing of a specific serving cell and a reference cell; and a step for transmitting, via a network, a message requesting the change of a timing group, if the specific serving cell belongs to the same timing group as the reference cell and the measured downlink timing difference is at least a threshold value, or if the specific serving cell belongs to a different timing group to the reference cell and the measured downlink timing difference is less than the threshold value. | 04-17-2014 |
20140113633 | METHOD ENABLING A TERMINAL TO TRANSMIT AND RECEIVE A SIGNAL IN A WIRELESS COMMUNICATION SYSTEM, AND DEVICE FOR SAME - The present invention relates to a method for enabling a terminal to reselect a cell in a wireless communication system. In more detail, the method includes receiving probability information relating to cell reselection from a network, and performing first cell reselection by using the received probability information when a specific service is received or is to be received. | 04-24-2014 |
20140120920 | METHOD FOR TERMINAL TO CONTROL UPLINK TIMING IN A WIRELESS COMMUNICATION SYSTEM, AND DEVICE FOR SAME - The present application discloses a method in which a terminal controls uplink timing in a wireless communication system. Specifically, the method is characterised by comprising: a step in which, if an uplink timing command for a specific uplink timing group is received from a network, a timer for the specific uplink timing group is started, said timer being the time available for the uplink timing command; a step in which a message for the discarding, from the network, of a serving cell included in the specific uplink timing group is received; and a step in which the timer is stopped if there is no serving cell included in the specific uplink timing group. | 05-01-2014 |
20140161017 | METHOD OF TRANSMITTING COUNTING RESPONSE MESSAGE INDICATING SERVICE AREA AT USER EQUIPMENT IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREOF - A method of processing a Long Term Evolution (LTE) Multimedia Broadcast Multicast Service (MBMS) message by a network in a wireless communication system, the method including transmitting a system information block (SIB) including information on a Multimedia Broadcast multicast service Single Frequency Network (MBSFN) area list through a broadcast control channel (BCCH) to a user equipment (UE); transmitting a first LTE MBMS message including information on one or more services through a multicast control channel (MCCH) to the UE; and receiving a second LTE MBMS message indicating a specific area corresponding to an area of the MBSFN area list and a specific service from the UE in response to the first LTE MBMS message, the UE wishing to receive the specific service of the one or more services or being interested to receive the specific service of the one or more services. | 06-12-2014 |
20140169253 | METHOD AND APPARATUS FOR PROVIDING MULTIMEDIA BROADCAST AND MULTICAST SERVICE (MBMS) IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for providing a multimedia broadcast and multicast service (MBMS) in a wireless communication system are disclosed. A method for receiving a multimedia broadcast and multicast service (MBMS) by a user equipment (UE) in a wireless communication system includes obtaining a predetermined system information block (SIB) from a base station (BS), and transmitting an MBMS interest indication message to the base station (BS) only when the predetermined system information block (SIB) is obtained. The predetermined system information block (SIB) includes information related to MBMS continuity. | 06-19-2014 |
20140192703 | METHOD AND APPARATUS FOR PERFORMING NETWORK CONNECTION IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system, and more particularly, a method and device for performing network connection are disclosed herein. The method of a user equipment for performing network connection in a wireless communication system according to an embodiment of the present invention may include the steps of receiving information on a network connection for a second type service from a first base station providing a first type service in the user equipment; based upon information on the network connection, deciding whether or not the network connection is permitted and deciding a target of the network connection; and, when the network connection is authorized, transmitting a network connection request message to the target of the network connection. | 07-10-2014 |
20140219204 | METHOD AND APPARATUS FOR RANDOM ACCESS IN A WIRELESS COMMUNICATION SYSTEM THAT SUPPORTS MULTIPLE CARRIERS - The present invention relates to a wireless communication system. According to one embodiment of the present invention, a method in which a terminal performs a random access procedure comprises the following steps: transmitting a random access preamble to a base station; and receiving, from said base station and as a response to said random access preamble, a random access response message indicated by a physical downlink control channel (PDCCH) for a cell identifier of said terminal. | 08-07-2014 |
20140233516 | METHOD OF TRANSMITTING AND RECEIVING SIGNAL TO AND FROM NETWORK AT UE IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR THE SAME - Disclosed herein is a method of, at a user equipment (UE), transmitting and receiving a signal to and from a network in a wireless communication system. The method includes logging information about failure of a first connection establishment procedure if the first connection establishment procedure with the network has failed, and transmitting the logged information to the network when a second connection establishment procedure with the network is successful. | 08-21-2014 |
20140235232 | METHOD AND DEVICE FOR STORING PLMN INFORMATION ON USER EQUPMENT IN WIRELESS COMMUNICATON SYSTEM - The present invention relates to a method of saving PLMN (public land mobile network) information of a user equipment in a wireless communication system and apparatus therefor. In particular, the present invention includes the step of determining a selected PLMN among at least one PLMN (public land mobile network), detecting a connection problem for the selected PLMN, and if the connection problem is detected, saving an information on the selected PLMN. | 08-21-2014 |
20140241297 | METHOD AND APPARATUS FOR RANDOM-ACCESSING IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method for performing a random access, more specially, to a method for a terminal performing a random access in a wireless communication system, and comprises a step of transmitting to a base station a random access preamble selected from either a first random access preamble group or a second random access preamble group, wherein the first and second random access preamble groups are discriminated depending one packet type to be transmitted by the terminal. | 08-28-2014 |
20140254538 | METHOD FOR TRANSMITTING AN UPLINK CONTROL SIGNAL, USER EQUIPMENT, METHOD FOR RECEIVING AN UPLINK SIGNAL, AND BASE STATION - The present invention relates to a method and apparatus for determining whether or not to transmit an uplink control signal in a first subframe according to whether or not a subframe (the first frame) corresponding to a transmission time of the uplink control signal is within an active time, or whether or not the first subframe is one of a constant number of subframes after the last subframe of the active time, and the active time is a time for the reception of resource allocation information for data retransmission. | 09-11-2014 |
20140341193 | METHOD FOR TRANSMITTING CHANNEL MEASUREMENT INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - A method in which a first communication module of a terminal transmits channel measurement information to a base station in a wireless communication system and a device therefor are disclosed in the present invention. Specifically, the method comprises the steps of: receiving a message indicating an operation start of at least one second communication module coexisting in the terminal from the second communication module; determining an unusable frequency due to in-device coexistence (IDC) interference on the basis of information on an operating frequency of the first communication module and an operating frequency of the second communication module; and transmitting an IDC interference indication message including channel measurement information corresponding to the determined unusable frequency to the base station. | 11-20-2014 |
20140342740 | METHOD FOR RECEIVING SERVICE BY MEANS OF USER EQUIPMENT IN A WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - The present application discloses a method for receiving a service by means of a user equipment connected to a first network in a wireless communication system. More particularly, the method comprises: a step of transmitting, to a first network, a first message for radio access technology (RAT) change to a second network; a step of accessing the second network; and a step of receiving the service from the second network, wherein the service is provided only in the second network. | 11-20-2014 |
20140376447 | METHOD AND APPARATUS FOR PROVIDING MULTIMEDIA BROADCAST AND MULTICAST SERVICE (MBMS) IN WIRELESS COMMUNICATION SYSTEM - A method for receiving a multimedia broadcast multicast service (MBMS) by a user equipment (UE) in a wireless communication system, the method comprising acquiring, by the UE, a predetermined system information block (SIB) from a base station (BS); and upon acquiring the predetermined SIB, transmitting an MBMS interest indication message by the UE to the BS. The predetermined SIB includes information related to MBMS service continuity. Whether the transmitting of the MBMS interest indication message is allowed is provided to the UE through the predetermined SIB. | 12-25-2014 |
20150043365 | METHOD AND APPARATUS FOR TRANSMITTING INDICATOR IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for transmitting an indicator in a wireless communication system is provided. A user equipment (UE) transmits an indicator to a base station, using at least one of a buffer status report (BSR) media access control (MAC) control element (CE) and a power headroom report (PHR) MAC CE if uplink transmission is not available. The indicator may indicates that there is no data in a buffer of the UE regardless of a current buffer status, or that there is no power headroom regardless of current power headroom status. The indicator may be a new logical channel identifier (LCID) or a new field, which indicates that the UL transmission is not available, in the at least one of the BSR MAC CE and the PHR MAC CE. | 02-12-2015 |
20150043533 | METHOD AND APPARATUS FOR SELECTING CELL IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for selecting a cell in a wireless communication system is provided. A user equipment (UE) receives a radio resource control (RRC) connection release message including redirection information from a serving cell. The UE determines whether to ignore the redirection information in the RRC connection release message according to a release cause of an RRC connection release and a user preference between a unicast service and a multimedia broadcast/multicast service (MBMS) service. If it is determined to ignore the redirection information, the UE ignores the redirection information in the RRC connection release message. | 02-12-2015 |
20150049662 | METHOD FOR ACCESSING NETWORK BY TERMINAL IN WIRELESS COMMUNICATION SYSTEM, AND DEVICE THEREFOR - A method for applying one or more priorities for cell re-selection by a terminal in a wireless communication system is disclosed in the present invention. More particularly, the method comprises the steps of: setting a first priority and a second priority, applying the first priority for the cell re-selection, and applying the second priority for the cell re-selection if connection establishment with a network is requested for. | 02-19-2015 |
20150049739 | METHOD AND APPARATUS OF CONTROLLING CELL ACTIVATION IN A WIRELESS COMMUNICATION SYSTEM - The present invention is directed to a method and an apparatus used for in a wireless communication system. Specifically, the present invention is directed to a method of controlling cell activity and an apparatus therefore, in which the method comprises: receiving a signal including an identifier and a timer value, wherein the identifier identifies a corresponding TAG and the timer value is used for cell deactivation of the corresponding TAG; and applying the received timer value to all cells belonging to the corresponding TAG. | 02-19-2015 |
20150049753 | METHOD AND APPARATUS OF CONTROLLING CELL DEACTIVATION IN A WIRELESS COMMUNICATION SYSTEM - The present invention is directed to a wireless communication system. Specifically, the present invention is directed to a method of receiving information at a user equipment configured with a serving cell in a mobile communication system, and the method comprises activating the serving cell; receiving a first signal from a base station, the first signal including timing advance group assignment information for the serving cell; and deactivating the serving cell if the timing advance group assignment information indicates a second timing advance group different from a first timing advance group assigned to the serving cell. | 02-19-2015 |
20150050934 | METHOD FOR MOVING IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS SUPPORTING SAME - Provided is a method for moving carried out by a terminal in a wireless communication system. The method comprises estimating mobility status of the terminal, detecting a neighboring cell, calculating an expected dwell time in the neighboring cell which is detected, determining whether to set an adaptive mobility condition on the basis of the expected dwell time, and moving on the basis of the adaptive mobility condition when the adaptive mobility condition is determined to be set. | 02-19-2015 |
20150055448 | METHOD AND APPARATUS FOR TRANSMITTING CONFIGURATION IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for transmitting a configuration in a wireless communication system is provided. A user equipment (UE) receives a configuration from a first node, stores the received configuration if a connection failure is detected, and transmits the stored configuration to a second node. The connection failure may be one of a radio link failure (RLF) or a handover failure (HOF). The configuration may include at least one of a discontinuous reception (DRX) configuration and a measurement configuration. | 02-26-2015 |
20150055534 | METHOD OF CONTROLLING TRANSMIT POWER OF UE IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR THE SAME - Disclosed herein is a method of transmitting a signal at a user equipment (UE) in a wireless communication system. The method includes receiving a radio resource control (RRC) configuration message from a network; determining a preference value relating to power saving after receiving the RRC configuration message; and transmitting the determined preference value relating to the power saving to the network. | 02-26-2015 |
20150056925 | METHOD FOR REPORTING IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS SUPPORTING SAME - Provided is a method for reporting by a terminal in a wireless communication system. The method logs, within a logged measurement, a log entry comprising a measurement result, wherein the log entry is related to one or more public land mobile networks (PLMN) contained in a minimization driving test (MDT) PLMN list for a logged measurement configuration provided for logging, and the method comprises: acquiring a new PLMN list; determining the validity of the log entry on the basis of the new PLMN list; and reporting the logged measurement report message to a network on the basis of the result of the validity determination. | 02-26-2015 |
20150057002 | METHOD FOR RESELECTING CELL BY USER EQUIPMENT IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - The present invention relates to a method and device for reselecting a cell by a user equipment in a wireless communication system. Particularly, a method for reselecting a cell by a user equipment comprises the steps of: setting a preferred frequency for cell reselection; forming at least one candidate cell except for a specific cell; and reselecting another cell in the frequency of the specific cell among the at least one candidate cell when the frequency of the specific cell is the same as the preferred frequency. | 02-26-2015 |
20150063275 | METHOD FOR ALLOWING TERMINAL TO TRANSMIT POWER HEADROOM INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - A method and a user equipment (UE) are described for transmitting power headroom (PH) information in a wireless communication system. A primary cell and at least one secondary cell are configured with the UE. One logical channel identifier (LCID) field is configured in a medium access control (MAC) sub-header. The one LCID field indicates a presence of a PH MAC control element (CE). A MAC protocol data unit (PDU) comprising the MAC sub-header and the PH MAC CE is transmitted. The PH MAC CE includes PH information for both the primary cell and the at least one secondary cell. | 03-05-2015 |
20150065112 | METHOD AND APPARATUS FOR CHANGING CELL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for changing a physical cell identity (PCI) of a mobile relay node (MRN) cell in a wireless communication system is provided. When a donor eNodeB (DeNB) changes the PCI of the MRN cell, the DeNB transmits a message indicating a change of the PCI of the MRN cell to an MRN if it is determined that the PCI of the MRN cell collides with the PCI of a DeNB cell or a PCI of neighbor cells. When the MRN changes the PCI of the MRN cell, the MRN transmits a message including the changed PCI of the MRN cell to user equipments (UEs) served by the MRN. | 03-05-2015 |
20150065136 | METHOD AND APPARATUS FOR TRANSMITTING CELL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for transmitting mobile relay node (MRN) cell information in a wireless communication system is provided. A source donor eNodeB (DeNB) receives MRN cell information of an MRN cell from an MRN, and forwards the MRN cell information to a target DeNB when a handover procedure for the MRN is performed. | 03-05-2015 |
20150065191 | METHOD FOR ALLOWING TERMINAL TO TRANSMIT POWER HEADROOM INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - A method and a user equipment (UE) are described for transmitting power headroom (PH) information. The UE generates PH information, and transmits the PH information to a base station. The PH information includes a first field including a plurality of indicators, each of the plurality of indicators indicating the presence of a second field indicating a PH level of a corresponding secondary cell (SCell). The PH information further includes a type-1 PH field and a type-2 PH field for a primary cell (PCell). Each of the plurality of indicators is set to 0 or 1. An indicator, which has been set to 1, indicates that the second field exists for the corresponding SCell, and an indicator, which has been set to 0, indicates that the second field does not exist for the corresponding SCell. | 03-05-2015 |
20150071157 | METHOD FOR RESELECTING MBMS-BASED CELLS IN WIRELESS COMMUNICATION SYSTEMS, AND APPARATUS FOR SUPPORTING SAME - The present invention relates to a cell reselection method to be performed by a terminal in a wireless communication system. The method includes the steps of: determining whether or not system information for a multicast broadcast multimedia service (MBMS) is a broadcast from a neighboring cell; and, when the system information for the MBMS is the broadcast, reselecting a cell by applying the highest priority to the frequency of the neighboring cell. | 03-12-2015 |
20150071159 | METHOD AND APPARATUS FOR PROVIDING MULTIMEDIA BROADCAST AND MULTICAST SERVICE (MBMS) IN WIRELESS COMMUNICATION SYSTEM - A method for receiving a multimedia broadcast multicast service (MBMS) by a user equipment (UE) in a wireless communication system, the method comprising acquiring, by the UE, a predetermined system information block (SIB) from a base station (BS); and upon acquiring the predetermined SIB, transmitting an MBMS interest indication message by the UE to the BS. The predetermined SIB includes information related to MBMS service continuity. Whether the transmitting of the MBMS interest indication message is allowed is provided to the UE through the predetermined SIB. | 03-12-2015 |
20150071260 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING SIGNAL TO AND FROM NETWORK AT USER EQUIPMENT IN A WIRELESS COMMUNICATION SYSTEM - A method for transmitting a signal to a transmitter at a receiver in a wireless communication system is disclosed. The method includes receiving first information to be transmitted to the transmitter from a higher layer and activating a timer, receiving second information to be transmitted to the transmitter from the higher layer, and transmitting a resource allocation request message to the transmitter, for transmitting the first and second information, upon expiration of the timer. | 03-12-2015 |
20150071261 | METHOD AND DEVICE FOR MANAGING TAG OF CELL IN COMMUNICATION SYSTEM - This description suggests a technique of controlling the timing advance group (TAG) of a cell. In particular, this description suggests a method of managing the TAG in a communication system. The method may include receiving a control signal indicating a cell by user equipment (UE); putting the cell in a first TAG by the UE in response to the control signal, wherein the first TAG includes only at least one secondary cell of which the uplink timing is not decided; performing a random access procedure on the cell in the first TAG by the UE; and putting the cell in a second TAG from the first TAG by the UE. | 03-12-2015 |
20150078184 | METHOD AND APPARATUS FOR ESTIMATING SPEED OF USER EQUIPMENT IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for estimating a speed of a user equipment (UE) in a wireless communication system is provided. The method includes counting a number of cell reselections based on whether a cell is reselected due to a user service or not, and estimating a speed of the UE based on the number of the cell reselections. | 03-19-2015 |
20150078244 | METHOD AND APPARATUS FOR RECEIVING SERVICE IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for receiving a service in a wireless communication system is provided. A user equipment (UE) receives a service from a first node serving a first cell, detects a second cell not providing the service, and determines whether to transmit a message for the second cell to the first node according to a preference for the service. | 03-19-2015 |
20150079938 | METHOD AND APPARATUS FOR ACCESSING CELL IN WIRELESS COMMUNICATION SYSTEM - Provided is an access method which is carried out by a terminal in a wireless communication system. The method comprises: obtaining system information from a target cell; determining whether system information for extended access barring (EAB) has been scheduled to the system information; determining whether EAB information is included in the system information for the EAB, when the system information for the EAB has been scheduled; and determining whether to bar access to the target cell on the basis of the EAB information when the EAB information is included. | 03-19-2015 |
20150087343 | METHOD AND APPARATUS FOR TRANSMITTING MESSAGE IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for transmitting a message in a wireless communication system is provided. A user equipment (UE) enters a proximity of a neighbor cell, detects interference on a frequency, and transmits a message, including information on the interference and an indication of entering the proximity of the neighbor cell, to a base station. | 03-26-2015 |