Patent application number | Description | Published |
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 |
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 |
20130039262 | METHOD AND APPARATUS FOR TRANSCEIVING DATA IN A WIRELESS ACCESS SYSTEM - The present invention relates to a method which involves determining a relay terminal in an M2M communication system, and transceiving data to/from a base station or other terminal through the determined relay terminal, and to a method for constructing frames for transceiving data in the M2M communication system. By means of the data-transceiving method, an M2M terminal can transmit/receive a signal to/from a base station or other M2M terminal, and frames of a base station and M2M terminal can be efficiently constructed, wherein said method includes: receiving, by a first terminal of a wireless access system, a first message including a relay operation parameter, which is information that indicates a transmitting or receiving operation, from a base station during a downlink section and/or uplink section within a frame; and transceiving, by the first terminal, data to/from the base station or other terminal on the basis of the received relay operation parameter. | 02-14-2013 |
20130064213 | APPARATUS AND METHOD FOR PERFORMING OR SUPPORTING COOPERATIVE COMMUNICATION BETWEEN TERMINALS IN A WIRELESS COMMUNICATION SYSTEM - According to one embodiment of the present invention, the receiver of a base station receives, from a first terminal, a first message containing information on a first terminal identifier, information which enables a direct link connection between the first terminal and one or more candidate terminals capable of cooperative communication in a cell to which the first terminal belongs, and/or information on the mode in which the first terminal performs cooperative communication. The transmitter of the base station transmits, to said one or more candidate terminals, a message for requesting a direct link connection with the first terminal, wherein the message contains the information on the first terminal identifier and/or information on the mode in which the first terminal performs cooperative communication. The network to which the first terminal and the candidate terminals are linked is different from the network to which the first terminal and the base station are linked. | 03-14-2013 |
20130070718 | METHOD IN WHICH A MOBILE STATION THAT SUPPORTS TWO OR MORE RADIO ACCESS TECHNOLOGIES PERFORMS COMMUNICATION WITH TWO OR MORE NETWORKS - The present invention relates to an apparatus that supports two or more radio access technologies, and to a method in which the apparatus performs communication with two or more networks. A mobile station, which supports two or more radio access technologies and which belongs to a first network, receives a signal from a base station of a second network different from the first network, and transmits feedback information to a base station of the first network in a state in which the access between the mobile station and the base station of the second network is maintained, wherein the feedback information includes channel state information on the received signal, interference level information on the received signal, and/or a reception acknowledgement (ACK) signal or a reception non-acknowledgement (NACK) signal for the receives signal. | 03-21-2013 |
20130089061 | METHOD AND DEVICE FOR TRANSMITTING UPLINK DATA IN WIRELESS CONNECTION SYSTEM - The present invention relates to a wireless communication system, more specifically a method for transmitting uplink through random access, and comprises: a step for receiving from a base station a first message which includes Machine Type Communication (MTC)-specific bandwidth request channel information for requesting bandwidth of MTC terminals; and a step for transmitting to the base station through the MTC-specific bandwidth request channel at least on of either bandwidth request preamble or bandwidth request information, wherein the bandwidth request information includes at least one of the following: MTC terminal identifier, quality of service (QoS), bandwidth request indicator, and bandwidth request size. | 04-11-2013 |
20130095821 | COOPERATIVE COMMUNICATION BETWEEN TERMINALS IN WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTI-RADIO ACCESS TECHNOLOGY - Disclosed is a method for executing communication in a wireless communication system supporting multi-radio access technology, through cooperation between a first terminal requesting terminal cooperation and a second terminal accepting terminal cooperation. The method comprises: a step for the first terminal to transmit to a base station resource allocation request information on the uplink transmission of the second terminal; a step for the second terminal to receive from the base station a first uplink grant (UL grant) as a response to the resource allocation request information; a step for the first terminal to transmit data to the second terminal; and a step for the second terminal to transmit to the base station the data received from the first terminal using the resource allocated by the first UL grant. | 04-18-2013 |
20130095845 | APPARATUS FOR SUPPORTING A MOBILE STATION TO COMMUNICATE WITH TWO OR MORE NETWORKS IN A MOBILE COMMUNICATION SYSTEM AND METHOD THEREOF - An apparatus for supporting a mobile station (MS) to perform a communication using a plurality of networks in a mobile communication system and method thereof are disclosed. According to the present invention, a serving base station (BS) of the MS receives information on at least one heterogeneous network from a BS of each of the at least one heterogeneous network. The serving BS of the MS selects at least one of a heterogeneous network to be allocated to the MS and a channel of the heterogeneous network based on the received information on the at least one heterogeneous network. And, the serving BS of the MS transmits an information on the selected heterogeneous network to the MS. | 04-18-2013 |
20130114570 | METHOD AND APPARATUS FOR TRANSMITTING UPLINK DATA IN A WIRELESS ACCESS SYSTEM - The present description relates to a method for a terminal to transmit uplink (UL) data in a wireless access system, comprising the following steps: receiving uplink resource allocation information for uplink data transmission from a base station via a downlink control channel, wherein the uplink resource allocation information includes resource block allocation information for each slot of a subframe and modulation and coding scheme (MCS) information; receiving, from the base station, sequence information allocated to each terminal so as to transmit uplink data through a code division multiplexing (CDM) scheme in cooperation with other terminals in a resource block pair region of the subframe; and transmitting uplink data to the base station through the resource block pair region in accordance with the received sequence information. | 05-09-2013 |
20130215840 | METHOD AND APPARATUS FOR ALLOCATING TERMINAL IDENTIFIER IN WIRELESS ACCESS SYSTEM - Disclosed is a method for allocating a terminal identifier through an initial network entry process with a base station in a wireless access system. The method comprises the steps of: receiving terminal type indication information indicating a M2M terminal from a terminal; constituting a second terminal identifier by adding bits of a predetermined number to the first terminal identifier on the basis of the terminal type indication information; and transmitting the second terminal identifier to the terminal. | 08-22-2013 |
20130229981 | DEVICE FOR TRANSMITTING/RECEIVING BASIC RESOURCE GRID TYPE INFORMATION IN A WIRELESS COMMUNICATION SYSTEM SUPPORTING A PLURALITY OF SERVING CELLS AND METHOD THEREOF - Provided area device for transmitting/receiving Basic Resource Grid (BRG) type information in a wireless communication system supporting a plurality of serving cells, and a method thereof. According to an embodiment of the present invention, a basic station device for transmitting BRG type information in a wireless communication system supporting a plurality of serving cells includes: a processor for configuring each BRG type for at least one serving cell configured in a terminal; and a transmitter for transmitting the configured BRG type information to the terminal. | 09-05-2013 |
20130235754 | METHOD AND APPARATUS FOR MEASURING A CHANNEL STATUS BETWEEN TERMINALS IN A WIRELESS ACCESS SYSTEM THAT SUPPORTS COOPERATIVE COMMUNICATION - The present invention provides a method for measuring a channel status between a source terminal and a cooperative terminal in a wireless access system that supports cooperative communication between terminals. The method comprises: a step in which the source terminal receives, from a base station, first control information for performing the cooperative communication between the terminals, wherein said first control information includes resource allocation information and control signal information; a step in which the source terminal measures the channel status between the source terminal and the cooperative terminal using the resource allocation information and the control signal information; a step in which the source terminal receives, from the base station, second control information for performing cooperative communication between the source terminal and the cooperative terminal; and a step in which the source terminal performs the cooperative communication between the terminals using the second control information. | 09-12-2013 |
20130286882 | METHOD AND DEVICE FOR PERFORMING TERMINAL-TO-TERMINAL COOPERATIVE COMMUNICATION IN WIRELESS ACCESS SYSTEM - The present invention provides a method for a source terminal performing client cooperation in a wireless access system, and the method includes: receiving, from a base station, first control information for performing client cooperation, wherein the first control information contains resource area information that is allocated for channel state measurement between a source terminal and a cooperative terminal and a control signal that is used for the channel state measurement; measuring a channel state with the cooperative terminal by using the resource area information and the control signal; receiving, from the base station, second control information for performing client cooperation with the cooperative terminal; and performing client cooperation by using the second control information, wherein the first control information further contains frame structure information for defining an operation for the source terminal and the cooperative terminal performing client cooperation in a client cooperation frame. | 10-31-2013 |
20130294266 | APPARATUS AND METHOD FOR ESTIMATING A LOCATION OF A MOBILE STATION IN A WIRELESS LOCAL AREA NETWORK - A method for estimating a location of a mobile station includes transmitting a position request signal, including at least departure time information or an identifier of the mobile station, to an AP by synchronizing with the AP, receiving first position information, including at least a calculated first location of the mobile station or a calculated first distance between the mobile station and the AP and departure time information of a position response signal, from the AP, calculating a ToA of a signal between the mobile station and the AP based on the departure time information of the position response signal, calculating at least a second distance between the mobile station and the AP or a second location of the mobile station using the ToA, and determining a final location of the mobile station based on the first position information and at least the second distance or the second location. | 11-07-2013 |
20130303171 | METHOD FOR PERFORMING INTER-MOBILE STATION (MS) HANDOVER IN RADIO ACCESS SYSTEM AND MS THEREFOR - A method of performing inter-mobile station (MS) handover in a radio access system and an MS therefor are disclosed. The method includes a first MS receiving an inter-MS handover indication message from a base station (BS) while performing inter-MS communication with a second MS, and the first MS performing inter-MS handover from the second MS to another MS according to the inter-MS handover indication message. The inter-MS handover is decided according to channel quality between the first MS and the second MS or channel quality between the second MS and the BS. | 11-14-2013 |
20130308490 | METHOD AND APPARATUS FOR PERFORMING DEVICE-TO-DEVICE COOPERATIVE COMMUNICATION IN WIRELESS ACCESS SYSTEM - The present invention relates to a method for performing a device-to-device cooperative transmission (D2D CT) using a multi-carrier in a wireless access system, including the steps of: enabling a source device to perform a network entry process with a base station using a primary carrier; enabling the source device to receive control information related to a dedicated carrier used for D2D CT from the base station through the primary carrier; and enabling the source device to transmit an uplink signal to a collaborative device using the dedicated carrier. | 11-21-2013 |
20130310075 | METHOD AND APPARATUS FOR ESTIMATING LOCATION OF USER EQUIPMENT IN WIRELESS NETWORK - A positioning method of estimating a location of a user equipment (UE) in a wireless network is disclosed. The positioning method includes performing positioning using a global positioning system (GPS)-based signal, checking whether the UE is located indoors based on received signal intensity of the GPS-based signal, and changing a positioning method using the GPS-based signal to a positioning method using a local area network (LAN)-based signal when it is determined that the UE is located indoors, and performing a positioning using the changed positioning method using the LAN-based signal. | 11-21-2013 |
20130315196 | HYBRID AUTOMATIC REPEAT REQUEST (HARQ) METHOD AND DEVICE IN A COOPERATIVE TERMINAL COMMUNICATION SYSTEM - According to one embodiment, a method for a terminal to perform a hybrid automatic repeat request (HARQ) in a wireless access system that supports cooperative terminal communication includes allocating a second carrier from a base station through a first carrier, the first carrier being used for data transmission to the base station and the second carrier being used for data transmission to another terminal; receiving a preamble and configuration information on the second carrier from the base station; transmitting data to the other terminal in an uplink subframe of the second carrier on the basis of the received configuration information; and receiving acknowledgement (ACK) or non-acknowledgement (NACK) for the transmitted data from a downlink subframe of the second carrier related to the uplink subframe. | 11-28-2013 |
20130331090 | APPARATUS FOR PERFORMING UE-TO-UE COOPERATIVE COMMUNICATION IN A WIRELESS COMMUNICATION SYSTEM AND METHOD THEREOF - An apparatus and method for performing UE-to-UE cooperative communication in a wireless communication system are disclosed, by which implementation of a UE cooperative communication using a cellular network is facilitated. The present invention includes activating an application to perform the UE-to-UE cooperative communication, receiving first data via a first network from a base station recognizing that the application has been activated, receiving second data via a second network from a cooperative user equipment linked for the UE-to-UE cooperative communication, and performing a service by adding the first data and the second data together through the application, wherein the first network and the second network correspond to heterogeneous networks, respectively. | 12-12-2013 |
20130336212 | METHOD OF SHARING A SERVICE PROVIDED TO A NEIGHBORING USER EQUIPMENT IN A WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - A method of sharing a service provided to a neighboring user equipment, which is shared by a user equipment in a wireless communication system, includes the steps of obtaining at least one URL (uniform resource locator) information corresponding to an IP (internet protocol)-based service provided by a first communication network by the neighboring user equipment, executing an application corresponding to the obtained URL information and making a request for the IP-based service to the first communication network, receiving the requested IP-based service from the first communication network, and controlling the application to execute the received IP-based service. | 12-19-2013 |
20140003400 | METHOD AND APPARATUS FOR HARQ IN PEER-TO-PEER (P2P) COMMUNICATION SYSTEM | 01-02-2014 |
20140036738 | METHOD FOR SUPPORTING A DYNAMIC-TIME DIVISION DUPLEX (D-TDD) DOWNLINK-UPLINK CONFIGURATION IN A WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR - Disclosed is a method for supporting a dynamic-time division duplex (D-TDD) downlink-uplink configuration in a wireless communication system and to an apparatus therefor. A method in which a first network node supports a dynamic-time division duplex (D-TDD) downlink-uplink configuration according to one embodiment of the present invention comprises a step of selecting two or more TDD downlink-uplink configurations from among a plurality of predefined TDD downlink-uplink configurations based on a predetermined rule so as to establish a set of TDD downlink-uplink configurations, wherein the predetermined rule may enable the selection of two or more TDD downlink-uplink configurations from a number of downlink subframe durations constituted by subframes other than a downlink subframe, or from a number of uplink subframe durations constituted by subframes other than an uplink subframe. | 02-06-2014 |
20140045520 | APPARATUS AND METHOD FOR MEASURING POSITION OF TERMINAL LOCATED IN INDOOR USING WIRELESS NETWORK - A method and apparatus for measuring the position of a terminal located in indoor using a wireless network is disclosed. The method for measuring a position of a terminal located in indoor using a wireless network includes receiving measurement result information obtained by performing measurement with respect to signals from three or more access points (APs), and calculating the position of the terminal using the measurement result information. The measurement result information includes signal strengths measured with respect to signals from a first band and a second band of each of the three APs. | 02-13-2014 |
20140057670 | METHOD FOR PERFORMING DEVICE-TO-DEVICE COMMUNICATION IN WIRELESS ACCESS SYSTEM AND APPARATUS THEREFOR - The present invention provides a method for performing device-to-device communication in a wireless access system that supports the device-to-device communication and an apparatus therefor. Specifically, the invention comprises the steps of: receiving, from a base station, device-to-device communication parameters for broadcasted device-to-device communication; transmitting a detection signal to one or more devices using the received device-to-device communication parameters; receiving, from the one or more devices, link measurement information for measuring a link between a first device and the one or more devices using the detection signal; selecting a second device for performing the device-to-device communication from the one or more devices using the link measurement information; and performing the device-to-device communication with the selected second device. | 02-27-2014 |
20140064126 | APPARATUS AND METHOD FOR CALCULATING LOCATION OF MOBILE STATION IN WIRELESS NETWORK - A method for measuring the indoor position of a UE by a network node according to an embodiment of the present invention may include: receiving, from the UE, measurement information including the intensity of a signal received from an access point (AP) and feedback information including information about a sensor configured to measure movement of the UE and sensor measurement information regarding movement of the UE, measured by the sensor; estimating the position of the UE based on the measurement information and received signal strength (RSS) from the AP, predetermined for each reference point; and calculating the indoor position of the UE by applying the information about the sensor and a sensor correction factor corresponding to the sensor measurement information to the estimated position of the UE. | 03-06-2014 |
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 |
20140098777 | METHOD AND APPARATUS FOR RESOURCE ALLOCATION FOR TRANSMITTING UPLINK DATA ON A COOPERATIVE TERMINAL IN A WIRELESS CONNECTION SYSTEM SUPPORTING TERMINAL CLIENT COOPERATION - The present invention relates to a resource allocation method for transmitting uplink (UL) data on a cooperative terminal during a process of client cooperation (CC) between terminals, wherein the method comprises the steps of: executing the client cooperation between the cooperative terminal and a source terminal; transmitting, by the cooperative terminal to a base station, an uplink resource allocation request message for transmitting uplink data corresponding to the cooperative terminal; receiving, by the cooperative terminal, first uplink resource allocation information responding to the uplink resource allocation message from the base station; and transmitting, by the cooperative terminal to the base station, uplink data corresponding to the cooperative terminal, through the first uplink resource allocation information, wherein the uplink resource allocation request message includes control information in order to differentiate between uplink data corresponding to the source terminal and the uplink resource allocation request message. | 04-10-2014 |
20140099971 | APPARATUS AND METHOD FOR MEASURING LOCATION OF USER EQUIPMENT LOCATED INDOORS IN WIRELESS NETWORK - A method of measuring a location of a user equipment (UE) located indoors in a wireless network includes receiving signals from a plurality of access points (APs), performing training for machine learning using the received signals or information acquired from the received signals, setting a weight vector to be applied to a relevance vector machine (RVM) method using data subjected to the training for machine learning, and applying RVM regression to the set weight vector and measured strengths of the received signals and determining whether the signals received from the plurality of APs are line of sight (LOS) signals or non line of sight (NLOS) signals. | 04-10-2014 |
20140127991 | METHOD FOR PERFORMING COMMUNICATION BETWEEN DEVICES IN A WIRELESS ACCESS SYSTEM, AND DEVICE FOR SAME - Disclosed are a method for performing communication between devices in a wireless access system supporting device-to-device communication, and a device for same. More particularly, the method comprises the steps of: transmitting, from a first device to a base station, instruction information on whether or not device-to-device communication is supported by the first device; receiving, by the first device, group information for grouping devices which support device-to-device communication, from the base station using mobility information and position information on the devices supporting device-to-device communication; selecting, by the first device using the group information, a second device that is to perform device-to-device communication between devices; and performing device-to-device communication with the second device selected by the first device. | 05-08-2014 |
20140128089 | METHOD FOR ALLOCATING WIRELESS RESOURCES IN WIRELESS ACCESS SYSTEM AND DEVICE THEREFORE - The present invention pertains to a method for allocating wireless resources used in device-to-device communication in a wireless access system which supports device-to-device communication, and a device therefore. Specifically, the invention includes a step for receiving resource control information through a control channel from a base station during device-to-device communication of a first device and a second device, and a step for allocating wireless resources which do not interfere in the device-to-device communication of another device and the second device by using resource control information of the first device when interference with another device occurs due to device-to-device communication of the first device and the second device. | 05-08-2014 |
20140185529 | METHOD FOR SUPPORTING DEVICE-TO-DEVICE COMMUNICATION IN A CELLULAR NETWORK, AND APPARATUS FOR SAME - Disclosed are a method for supporting device-to-device (D2D) communication in a cellular network, and an apparatus for same. The method for supporting device-to-device communication by a terminal in a cellular network comprises the steps of: the terminal receiving, from a base station, information on a D2D zone which has been set up for the D2D communication; and monitoring the D2D zone, using the information on the D2D zone, to detect a search signal transmitted by at least one D2D terminal, wherein the D2D zone may comprise: a search section for the transmission of the search signal by the at least one D2D terminal; and a connection section for transmission of a signal for requesting D2D transmission. | 07-03-2014 |
20140219095 | METHOD OF PERFORMING DIRECT COMMUNICATION BETWEEN TERMINALS, METHOD OF SUPPORTING SAME, AND APPARATUS FOR SAME - A method for performing communication by a device-to-device (D2D) user equipment (UE) performing D2D communication in a wireless communication system supporting the D2D communication, comprises receiving a transmission request signal for D2D communication from at least one other D2D UE; measuring a received signal power or a signal-to-noise ratio (SNR) of the received at least one transmission request signal; generating, based on the measurement, D2D link information including at least one of received signal power or SNR information about a D2D link between the D2D UE and the at least one other D2D UE and information about an interference level caused by the at least one other D2D UE; and transmitting the generated D2D link information and a bandwidth request for D2D communication to a base station. | 08-07-2014 |
20140286284 | METHOD FOR ALLOWING BASE STATION TO SUPPORT DEVICE-TO-DEVICE (D2D) COMMUNICATION IN WIRELESS COMMUNICATION SYSTEM, AND METHOD FOR ALLOWING D2D DEVICE TO EFFICIENTLY TRANSMIT D2D COMMUNICATION REQUEST SIGNAL - Method for supporting device-to-device (D2D) communication by a base station includes: receiving first signals for requesting D2D communication from a plurality of first D2D devices; identifying number of D2D devices which have requested the D2D communication based upon the first signals; allocating resources for transmitting a second signal for requesting D2D communication between the D2D devices based upon number of the plurality of first D2D devices which have been identified; and transmitting information on the allocated resources to the plurality of first D2D devices, wherein the resource allocation can be performed to distinguish combinations of an index of a D2D device, which transmits the second signal, and an index of a D2D device, which receives the second signal, from each other with respect to at least one of time, frequency, code, and space domains with respect to the plurality of first D2D devices. | 09-25-2014 |
20140315562 | METHOD FOR PERFORMING INTER-CELL D2D COMMUNICATION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - A method for performing inter-cell D2D communication includes: receiving a first signal which is a D2D communication request signal including information on a D2D terminal selected from D2D terminals within a cell to which a base station belongs; determining whether the selected D2D terminal is a D2D terminal within the cell using information on the selected D2D terminal; transmitting a second signal, for requesting inter-cell D2D communication to a base station belonging to a neighboring cell, if the selected D2D terminal is a D2D terminal belonging to the neighboring cell; receiving a third signal for approving the inter-cell D2D communication, from the base station cell as a response to the second signal; and transmitting, to the D2D terminal within the cell, information on a resource allocated for communication between the D2D terminal within the cell and the selected D2D terminal according to the third signal. | 10-23-2014 |
20140355483 | DEFINITION OF NEW IDENTIFIER IN WIRELESS ACCESS SYSTEM THAT SUPPORTS DEVICE TO DEVICE COMMUNICATION, AND TRANSMISSION METHOD AND DEVICE USING SAME - The present invention provides definition of an identifier which is required for recognizing information essential for device to device communication, a transmission method thereof, and devices that support the same. The method for supporting device to device (D2D) communication in a wireless access system that supports D2D communication as one embodiment of the present invention comprises the steps of allowing a first D2D device to receive, from a base station, a broadcast message which contains a common D2D identifier (C-D2D-RNTI) for all D2D devices that perform D2D communication; and allowing the first D2D device to receive the transmitted D2D-related information by using the C-D2D-RNTI. In this situation, the wireless access system can support both D2D communication and cellular communication for a normal terminal instead of the D2D device. | 12-04-2014 |
20150018017 | METHOD FOR ESTIMATING POSITIONS OF DEVICES IN WIRELESS ACCESS SYSTEMS SUPPORTING COMMUNICATION BETWEEN DEVICES, AND APPARATUS FOR SUPPORTING SAME - The present invention relates to a method for estimating the positions of devices in direct communication with each other, to a method for estimating the structure of a network, and to apparatuses for supporting the methods. According to one embodiment of the present invention, the method for estimating the positions of devices in a wireless access system which supports direct D2D communication between the devices includes the steps of: obtaining information on distance estimation to an adjacent D2D device (for example, a second D2D device) by a D2D device having two reference points (for example, a first D2D device); and estimating the position of the D2D device by using the information on distance estimation and the position information on the two reference points, at which time the information on distance estimation can be obtained through direct D2D communication between the D2D device and the adjacent D2D device. | 01-15-2015 |
20150023267 | METHOD FOR TRANSMITTING AND RECEIVING FEEDBACK INFORMATION ON D2D TRANSMISSION DATA IN WIRELESS COMMUNICATION SYSTEM FOR SUPPORTING D2D COMMUNICATION AND APPARATUS THEREFOR - A method for transmitting feedback information on device to device (D2D) transmission data in a wireless communication system for supporting D2D communication according to the present invention comprises the steps of: informing a D2D link with another D2D terminal through a D2D terminal search; enabling a first D2D terminal to receive, in the formed D2D link, D2D information including resource allocation information for transmitting D2D data from a base station; enabling the first D2D terminal to receive data from a linked second D2D terminal through a resource according to the resource allocation information; and transmitting, to the base station, feedback information including acknowledgement/non-acknowledgement (ACK/NACK) signals for the received data, wherein the feedback information can comprise a D2D indicator for indicating the information related to the D2D communication and the identification information of the first D2D terminal and/or the identification information of the second D2D terminal. | 01-22-2015 |
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 |
20150085836 | UPLINK SIGNAL TRANSMISSION METHOD AND STATION DEVICE, AND UPLINK SIGNAL RECEIVING METHOD AND ACCESS POINT DEVICE - The present invention provides an uplink signal transmission method and apparatus. A method for transmitting an uplink signal to an access point (AP) by means of a station (STA) in a Wireless local area network (WLAN) system comprises: sensing a medium being occupied by another STA; and transmitting the uplink signal to the AP on the medium being occupied by another STA. | 03-26-2015 |
20150092876 | METHOD AND APPARATUS FOR AMPLIFYING MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for amplifying a MIMO signal in a wireless communication system are disclosed. A signal amplifier for amplifying a MIMO signal in a wireless communication system includes: a recognition module for recognizing network information and antenna information of a source device; and an adaptive link construction module for forming a link between a plurality of antenna with respect to the source device and a plurality of antenna with respect to the destination device on the basis of the recognized information. | 04-02-2015 |
20150119097 | APPARATUS FOR BOOSTING MIMO (MULTI-INPUT MULTI-OUTPUT) SIGNAL IN A WIRELESS COMMUNICATION SYSTEM AND METHOD THEREOF - An apparatus for boosting an MIMO (multi-input multi-out-put) signal and method thereof are disclosed. The present invention includes determining an initial transmit power value of the signal booster and applying an initial transmit power increment/decrement value to a sum of the initial transmit power value and the initial transmit power increment/decrement value in each preset time interval during an initial power control period. | 04-30-2015 |
20150124895 | WIRELESS COMMUNICATION SYSTEM FOR HIGH-SPEED MOVING OBJECT THAT MOVES ALONG FIXED ROUTE - The present invention relates to a method in which a signal is transmitted between a base station and a terminal in a multi-antenna wireless communication system. The method transmits pre-estimated channel information to the terminal when the terminal moves to a specific position when channel estimation for a specific position is performed. As for the terminal which moves along a fixed route or the route of which can be estimated, the position of the terminal in the near future can be easily detected. Therefore, the transception of channel information can be performed in a more efficient manner in consideration of the above-described special environment. | 05-07-2015 |
20150131561 | METHOD FOR TRANSMITTING AND RECEIVING DATA BY USING AN EXISTING CONNECTION LINK IN A WIRELESS COMMUNICATIONS SYSTEM AND AN APPARATUS FOR THE SAME - The method for enabling a first mobile terminal connected to a first storage terminal to send data to a second storage terminal connected to a second mobile terminal in a wireless communications system includes the steps of: receiving the information of the data to be transmitted from the first storage terminal to the second storage terminal; transmitting the information of the data through a link connected to the second mobile terminal to the second mobile terminal; receiving the information of the second storage terminal from the second mobile terminal; determining whether it is possible to transmit the data through the link based on the information of the data and the information of the second storage terminal; and if it is possible to transmit the data, transmitting the data received from the first storage terminal through the link to the second mobile terminal | 05-14-2015 |
20150139344 | METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING MULTI-INPUT MULTI-OUTPUT (MIMO) SIGNAL IN WIRELESS COMMUNICATION SYSTEM IN WHICH PLURAL COMMUNICATION SYSTEMS ARE PRESENT - A device for transmitting and receiving multi-input multi-output (MIMO) signal in a wireless communication system in which a plurality of communication systems is present includes a plurality of antenna modules and a recognition module for recognizing at least one of network information or antenna information of a source device. The recognition module compares a measurement result of the plurality of antenna modules with pre-stored information to recognize the network information or antenna information of the source device. | 05-21-2015 |
Patent application number | Description | Published |
20120329448 | METHOD AND APPARATUS FOR CREATING A CHANNEL BETWEEN FEMTO BASE STATIONS BASED ON USER EQUIPMENT - The present invention provides a method and apparatus for generating a direct or indirect wireless channel between femto base stations to relieve interference that occurs in user equipment depending on the proximity of the femto base station and generate an adaptive control channel and a data channel between the femto base stations, thereby increasing the communication efficiency. | 12-27-2012 |
20130065600 | METHOD FOR CONTROLLING CONNECTION CONFIGURATION BY FEMTO BASE STATION AND METHOD FOR CONFIGURING CONNECTION BY TERMINAL - Disclosed is a method for controlling connections between a terminal and one or more neighbor base station (BSs) by a serving BS with respect to the terminal. The method for controlling a configuration of connections between a terminal and one or more neighbor BSs includes: receiving, by the serving BS and from a control station, information regarding radio access technologies (RATs) which are supported and have been activated or deactivated by the one or more neighbor BSs from a control station; transmitting an activation request message from the serving BS to the control station in order to activate the radio access technology in the deactivated state if there is a need for activating the deactivated RAT to connect the terminal to the one or more neighbor BSs; receiving, by the serving BS and from the control station, an activation response message including information regarding the neighbor BSs and information regarding the at least one specific radio access technology which is activated according to the activation request message; and transmitting a connection request message from the serving BS to the terminal to allow the terminal to be connected to the one or more BSs according to the one or more activated radio access technologies using the at least one specific RAT. | 03-14-2013 |
20130070642 | METHOD AND APPARATUS FOR TRANSCEIVING DATA IN A WIRELESS LAN SYSTEM - The present description relates to a method in which a station transmits data in a wireless LAN system, comprising the following steps: receiving, from an access point, control information containing station group configuration information, which indicates the configurations of station groups and uplink resource allocation information on the resource allocated to each station group; determining, on the basis of the control information, the station group to which the station belongs; and transmitting uplink data to the access point by contending with other stations in the determined station group. | 03-21-2013 |
20130089075 | METHOD FOR TRANSCEIVING A SIGNAL TO/FROM A MOBILE FEMTOCELL IN A WIRELESS COMMUNICATION SYSTEM, AND APPARATUS FOR SAME - The present application relates to a method in which a terminal processes a signal in a wireless communication system in which communication between the terminal and a mobile femtocell is being performed via a first communication link. More particularly, the method comprises the following steps: disconnecting the first communication link and establishing a second communication link to a neighbor cell in the event the terminal and the mobile femtocell enter the coverage area of the neighbor cell; delivering information, relating to the first communication link, to the mobile femtocell during communication with the neighbor cell, performed via the second communication link; and reestablishing the first communication link to the mobile femtocell on the basis of the information relating to the first communication link in the event the mobile femtocell and the terminal leave the coverage area of the neighbor cell. | 04-11-2013 |
20130090116 | METHOD FOR PERFORMING HANDOVER OR INITIAL ACCESSING - A method for performing handover or initial accessing by a terminal includes: receiving a message including one or more of information regarding a smart meter and information regarding neighbor base stations (BSs) connected to the smart meter, the smart meter having a function for managing power, determining at least one of the neighbor BSs connected to the smart meter as a BS to be accessed; transmitting an access request message for accessing the determined BS to the smart meter, and accessing the determined BS if a response message is received from the smart meter. | 04-11-2013 |
20130157678 | SCHEDULING IN CONSIDERATION OF TERMINAL GROUPS IN A MOBILE COMMUNICATION SYSTEM - Specifically, according to one embodiment of the present invention, a method for operating a base station that assigns frequency resources to terminals in a wireless communication system is provided. The method comprises the steps of calculating a first metric using information relating to the transmission rate of each terminal; calculating a second metric using information relating to a proportion of a group to which each of the terminals belongs; determining a terminal to which a frequency resource is assigned on the basis of the calculated first and second metrics; assigning the resource to the determined terminal; and updating the information relating to the transmission rate for each terminal and the information relating to proportion of a group. | 06-20-2013 |
20130163495 | SCHEDULING METHOD FOR MACHINE-TO-MACHINE COMMUNICATION - One embodiment of the present invention provides a scheduling method for machine-to-machine (M2M) communication. The method comprises the steps of: receiving a connection request message from each of a plurality of machines; grouping the plurality of machines into one or more groups; transmitting information on the group to which each machine belongs, to the machine; transmitting information on the machines belonging to each group, and control information including information on a time interval allocated to each group, to machines belonging to each group; and communicating with machines belonging to each group in a time interval allocated to each group. | 06-27-2013 |
20130315091 | METHOD AND DEVICE FOR REMOVING INTER-CELL INTERFERENCE OF AN ACCESS POINT IN A WIRELESS ACCESS SYSTEM - The present application relates to a method for central node (CN) to remove inter-cell interference of an access point (AP) in a wireless access system according to the present invention, including: receiving feedback information at each time slot from a plurality of APs, the feedback information including channel measurement information between terminals in each AP and the coverage of each AP, or position information of each AP; obtaining a preference for each pattern, the pattern representing an ON or OFF operation of each AP at each time slot; determining a target time rate of each pattern on the basis of the obtained preference for each pattern; receiving an instantaneous transfer rate of terminals in the coverage of each AP for each pattern from the plurality of APs; and determining a pattern in order to minimize reference between each AP according to the received instantaneous transfer rate. | 11-28-2013 |
20140045513 | RADIO RESOURCE DIVISION FOR COMPENSATING RATIO CHANGES OF OTHER CLUSTERS - The present invention relates to a method in which a management station divides radio resources for base stations which belong to a plurality of groups in a wireless communication system, and comprises the steps of: receiving a first message requesting an increase in resource allocation from at least one base station which belongs to a first group within a first cluster; receiving a second message requesting an increase in resource allocation from at least one base station which belongs to a second group within a second cluster; and changing each of the resource division ratios of the first group and the second group within the first cluster and the second cluster, wherein the resource division ratios of the first group and the second group are changed based on necessary resource information within the first message and the second message. | 02-13-2014 |
20140092863 | METHOD AND DEVICE FOR SCHEDULING A WIRELESS PERSONAL AREA NETWORK - The present specification sets forth a method for a device to transmit data in a wireless personal area network (WPAN), comprising the steps of: transmitting a transmission-band request message for transceiving non-contention data between a first coordinator and a second coordinator, the second coordinator operating in a different frequency channel from the first coordinator; switching an operating channel to the different frequency channel; receiving transmission-band allocation information corresponding to the transmission-band request message from the second coordinator through the switched different frequency channel; and transceiving data to/from the second coordinator according to the transmission-band allocation information. | 04-03-2014 |
20140105138 | APPARATUS AND METHOD FOR CONTROLLING INTER-CELL INTERFERENCE IN WIRELESS COMMUNICATION SYSTEM - A method for controlling inter-cell interference in a wireless communication system is disclosed. The method is performed by a base station (BS) and includes receiving information about an interference control period from a central controller;
| 04-17-2014 |
20140106827 | APPARATUS AND METHOD FOR SELECTING PROCESSING SPEED OF PROCESSOR AND WIRELESS NETWORK - An apparatus and method for selecting a processor clock speed and a wireless network are disclosed. The method for selecting a processing speed of a processor and/or a wireless network to be connected in a User Equipment (UE) in a wireless communication system includes detecting states of a processor-related queue and a network module-related queue, and selecting a processing speed of the processor-related queue and/or a wireless network to be connected, based on the detected states of the processor-related queue and the network module-related queue and power consumptions of a processor and a network module. The processing speed of the processor-related queue and/or the wireless network to be connected are selected to keep a difference between a length of the processor-related queue and a length of the network module-related queue at a predetermined value and minimize the power consumptions of the processor and the network module. | 04-17-2014 |
20140119332 | INTERFERENCE CONTROL METHOD IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR THE SAME - A method for an eNB to control inter-cell interference in a wireless communication system includes receiving information on a plurality of time-domain interference patterns corresponding to sub-frequency-domain interference control information on a plurality of sub-frequency domains constituting a system frequency domain, the plurality of time-domain interference control patterns indicating interference control for subframes of the plurality of sub-frequency domains, and transmitting, to a UE, scheduling information about the UE based on information on at least one of the plurality of time-domain interference control patterns, wherein each of the plurality of time-domain interference control patterns is configured to have more subframes for which transmission power restriction is set (referred to as “transmission power-restricted subframes” hereinafter) as an inter-cell interference level indicated by the sub-frequency-domain interference control information increases. | 05-01-2014 |
20140126558 | SCHEDULING METHOD AND DEVICE HAVING CONTINUITY IN A WIRELESS PERSONAL AREA COMMUNICATION NETWORK - The present description discloses a method for a first device to transmit data in a WPAN (wireless personal area network), comprising the steps of: transmitting, to a second device, a message requesting a transmission bandwidth for transceiving non-competitive data of a first device; receiving, from the second device, transmission bandwidth allocation information corresponding to the message requesting the transmission bandwidth; and transceiving data to/from the second device according to the transmission bandwidth allocation information, wherein the transmission bandwidth allocation information may include length, gap, and window information on the transmission bandwidth for non-competitive transception. | 05-08-2014 |
20140128000 | Method for Channel Searching in a Medical Body Area Network - Provided is a method for channel searching for enabling a medical body area network (MBAN) terminal, which operates in an allocated frequency band, to use another frequency band. The method may comprise the steps of receiving an identifier of a specific channel group, from among a plurality of channel groups, from an MBAN coordinator in the allocated frequency band; and searching for a channel in a channel group relating to the received identifier of the channel group in a different frequency band. The identifier of the channel group indicates a channel group including channels that the terminal preferentially searches for in the other frequency band. | 05-08-2014 |
20140128090 | METHOD AND DEVICE FOR SHARING MOBILE FEMTOCELL NETWORK - The present invention relates to a method for sharing a femtocell network, and more specifically, to a method and device for sharing a mobile femtocell network. The method relates to a method in a mobile femtocell base station, and includes the steps of: receiving information about a service level of a neighboring mobile femtocell in the mobile femtocell base station; determining the service level of the neighboring mobile femtocell based on the information; and transmitting a transmission power control request about the neighboring mobile femtocell to a femtocell network controller to reduce interference of the neighboring mobile femtocell according to the determination result. | 05-08-2014 |
20140148100 | METHOD FOR CHANNEL SWITCHING IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - The present invention provides a method for switching an operating channel of a device in a wireless personal area network (WPAN) system, and an apparatus therefor. Specifically, the method includes the steps of: setting an association with a first frequency band coordinator; receiving channel switching information from the first frequency band coordinator; channel switching to a second frequency-band channel using the received channel switching information; and setting an association with a second frequency band coordinator, wherein the channel switching information includes a residual time with a time limit which channel switches from a first frequency band to a second frequency band, an operating channel in the second frequency band, and a prearranged transmission time of a beacon frame in the operating channel in the second frequency band. | 05-29-2014 |
20140185483 | METHOD AND APPARATUS FOR MEASURING INTERFERENCE IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for measuring inter-cell measurement in a wireless communication system are discussed. The method includes: receiving information regarding a predetermined resource region to which a sounding signal allocated for user equipments (UEs) connected to base stations (BSs) contained in the same coordinated cluster is transmitted, the sounding signal being used to detect a UE causing inter-cell interference; determining whether transmission of the sounding signal is granted for a serving UE in the predetermined resource region; and if transmission of the sounding signal is granted, transmitting a transmission grant message of the sounding signal to the serving UE, wherein whether the sounding signal transmission is granted is determined based on a random number, or is determined based on information of an available resource region of each BS if information regarding the available resource region of each BS is received with the information regarding the predetermined resource region. | 07-03-2014 |
20140194132 | APPARATUS AND METHOD FOR TRANSMITTING FEEDBACK INFORMATION USING TERMINAL ACCESSIBILITY IN A WIRELESS ACCESS SYSTEM - The present invention relates to a method for a base station to manage resources in order to perform beamforming in a wireless access system, the method being characterized by comprising the steps of: receiving cluster information from a cluster head; and determining, on the basis of the received cluster information, terminals to be scheduled in a cluster including the cluster head, wherein the cluster information comprises location and channel gain information for the terminals belonging to the cluster including the cluster head. | 07-10-2014 |
20140198678 | METHOD AND APPARATUS FOR CONTROLLING INTERFERENCE IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for controlling interference in a wireless communication system are disclosed. A method for measuring inter-cell interference by a pico eNB in a wireless communication system includes: receiving transmission information of a dummy signal to be transmitted on at least one candidate carrier from a neighbor pico eNB; scheduling at least one user equipment (UE) served by the pico eNB to measure the dummy signal based on the transmission information; receiving a measurement value of the dummy signal from the at least one UE; and transmitting a measurement report of the dummy signal based on the measurement value to the neighbor pico eNB, wherein the dummy signal transmission information is specified for each of a plurality of subframe sets of the at least one candidate carrier. | 07-17-2014 |
20140206407 | METHOD AND DEVICE FOR DISCOVERING NEIGHBORS FOR WIRELESS FIDELITY DIRECT (WFD) PEER TO PEER (P2P) COMMUNICATION - The present invention relates to a wireless communication system. In particular, the present invention relates to a method and device for performing the process of discovering neighbors for Wi-Fi P2P communication, the method including the steps of: checking at a first WFD P2P device whether there is WFD P2P group in which participation is possible; performing, at the first WFD P2P device, the operation for participating in the WFD P2P group in which participation is possible, if there is a WFD P2P group in which participation is possible, or performing, at the first WFD P2P device, the operation for creating a new WFD P2P group or entering a sleep mode, if there is no WFD P2P group in which participation is possible, wherein the operation for participating in the WFD P2P group in which participation is possible includes the steps of receiving information about a neighbor list on a second WFD P2P device (or devices) within the WFD P2P group from a specific WFD P2P device that manages the WFD P2P group, and periodically transferring neighbor advertisement information on the first WFD P2P device to the specific WFD P2P device, after receiving the neighbor list. | 07-24-2014 |
20140247817 | SCHEDULING METHOD IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - The present invention provides a scheduling method in a wireless personal area network (WPAN) system and a device therefor. Specifically, a method for allocating a guaranteed time slot (GTS) in a WPNA system comprises the steps of: receiving a GTS request command for requesting periodic GTS allocation from a device; and transmitting a beacon frame which includes periodic GTS allocation information to the device, wherein a GTS allocation interval is determined by GTS interval information included in the GTS request command, and an allocated periodic GTS expires if data or an acknowledgement (ACK) frame is not transmitted from the device within a section determined by the GTS allocation interval. | 09-04-2014 |
20140301552 | METHOD FOR WIRELESS LOCAL AREA NETWORK (WLAN)-BASED PEER TO PEER (P2P) COMMUNICATION AND APPARATUS FOR SAME - Abstract: The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for performing WLAN-based P2P communication at the state where a P2P apparatus is connected to a cellular network and to a first P2P apparatus for the method. The method comprises: a step of receiving one or more pieces of key information from a cellular base station, each piece of key information including a key value corresponding to service identification information; a step of receiving an encryption data signal from a second P2P apparatus; and a step of performing a process of attempting to decrypt said encrypted data signal using one or more keys corresponding to one or more services in which said first P2P apparatus is interested, from among said one or more pieces of key information. | 10-09-2014 |
20140328254 | METHOD FOR RE-SELECTING AP IN WIRELESS COMMUNICATION SYSTEM, AND DEVICE FOR SAME - The method performed by a base station and comprises receiving, from a terminal connected to a first WLAN AP, an AP re-selection response message requesting a connection change from the first WLAN AP to a second WLAN AP; transmitting, to the second WLAN AP, an AP change request message including information relating to the association of the terminal and information relating to the connection setup of the terminal; receiving, from the second WLAN AP, an AP change response message including information indicating approval, or not, of the connection of the terminal; if the second WLAN AP has provided approval, transmitting, to the first WLAN AP, an AP change indication message indicating the connection change of the terminal; and transmitting, to the terminal, an AP re-selection command message ordering connection with the second WLAN AP. | 11-06-2014 |
20140334446 | METHOD FOR DATA OFFLOADING IN WIRELESS COMMUNICATION SYSTEM, AND DEVICE FOR SAME - Disclosed are a method for data offloading in a wireless communication supporting multiple radio access networks, and a device for the same. Specifically, the method comprises: a step in which a neighboring cell report including an identifier for a wireless local area network (WLAN) access point (AP) is received from a first terminal and a second terminal; a step in which, if the first and second terminals are communicating with one another and the WLAN AP identifiers transmitted by the first and second terminals are the same, an offloading indication message, indicating the offloading of first and second terminal data, is transmitted to the WLAN AP having the WLAN AP identifier; and a step in which an offloading command message, ordering the transmission and reception of data via the WLAN AP, is transmitted to the first and second terminals. | 11-13-2014 |
20140341038 | METHOD FOR OFFLOADING DATA IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - The present invention relates to a method for offloading data in a wireless communication system for supporting a multiple radio access network and an apparatus for same. Specifically, the method includes the steps of: receiving a message of a connected cell report including an identifier of a wireless local area network (WLAN) access point (AP) to which a terminal is connected via a base station, from the terminal connected to the base station of a cellular network; transmitting scheduling information on a data transmission time to the base station, when data to be transmitted to the terminal is determined to be transmitted via the WLAN AP; and transmitting the data via the WLAN AP to the terminal according to the scheduling information. | 11-20-2014 |
20140378172 | METHOD FOR TRANSCEIVING PAGING MESSAGE IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - Disclosed are a method for transceiving a paging message in a wireless communication system that supports a multiple radio access network and an apparatus for the method. In detail, the method comprises: a step of receiving, from a terminal, a paging redirection request message for requesting redirection of a paging message transmission path of a cellular network through a wireless local area network (WLAN) access point (AP) in the event the terminal accessed to a base station of the cellular network has switched the access thereof to the WLAN AP; a step of transmitting a paging redirection response message indicating whether the redirection of the paging message is authenticated or not to the terminal through the WLAN AP; and a step of transmitting a paging message to the terminal through the WLAN AP. | 12-25-2014 |
20150110027 | METHOD FOR TRANSCEIVING DATA IN WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR - According to one embodiment of the present invention, a method configured to enable user equipment to transmit or receive data relating to hybrid automatic repeat request (HARQ) process to/from a plurality of base stations in a wireless communication system may comprise the steps of: receiving, from a serving base station, information relating to HARQ processes allocated for the HARQ process of the plurality of base stations, and base station pattern information indicating the base station to/from which the user equipment transmits or receives the data in a specific subframe; and transmitting or receiving the data to/from at least one base station from among the plurality of base stations on the basis of the information relating to the HARQ processes and the base station pattern information. | 04-23-2015 |
20150124733 | METHOD FOR CONTROLLING INTERFERENCE IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - A method for controlling interference between a plurality of pico base stations within the coverage of a macro base station in a wireless communication system, according to one embodiment of the present invention, comprises the steps of: enabling a first pico base station to transmit information on a first subset of an ABS (almost blank subframe) pattern for measuring a downlink to user equipment on the basis of the ABS pattern of a macro base station; receiving, from the user equipment, the measurement results of the downlink in the first subset; detecting, from the measurement results of the downlink, interference from a second pico base station within the coverage of the macro base station, wherein if the interference is detected, the first pico base station can transmit, to the second pico base station, a message for requesting pairing with the macro base station with respect to the ABS pattern. | 05-07-2015 |
20150163719 | METHOD FOR CONTROLLING HANDOVER IN WIRELESS COMMUNICATION SYSTEM, AND DEVICE THEREFOR - According to one embodiment of the present invention, disclosed is a method for a first pico base station for controlling handover between the first pico base station and a second pico base station in a wireless communication system. The method comprises the steps of: receiving, from user equipment, measurement results of a downlink reference signal of the second pico base station; and determining whether it is necessary to hand over to the second pico station based on the measurement results. If it is determined that it is necessary to handover to the second pico base station, the method may further comprise the steps of: sending an action switch request to the second pico base station; receiving setting data of the second pico base station for the action switch with the second pico base station; and changing the setting data of the first pico base station into the received setting data of the second pico base station. | 06-11-2015 |
Patent application number | Description | Published |
20100208684 | METHOD OF ALLOCATING RADIO RESOURCE IN BROADBAND WIRELESS ACCESS SYSTEM - A method for allocating resource regions in a wireless access system is provided. This method collectively allocates resources of consecutive frames. Specifically, a message, including allocation information used to collectively and consecutively allocate identical resource regions, is received from a base station and data is transmitted through the allocated resource regions. Unlike the conventional method, a resource region is not allocated in each frame but instead identical resource regions are allocated in multiple frames, thereby reducing MAP overhead in a network. | 08-19-2010 |
20100215002 | METHOD FOR TRANSMITTING SIGNALS, METHOD FOR ALLOCATING RESOURCE AND METHOD FOR CONSTRUCTING UPLINK MAP FOR THE SAME - A method for a Base station (BS) to allocate resources to terminals in a broadband wireless access system, a method for transmitting signals of a terminal, and a method for constructing an uplink MAP for the same are provided. Start position information of each allocated region may be included in uplink resource allocation information or information indicating the position of a region dedicated to VoIP traffic may be included in an uplink MAP. The uplink MAP may include separate resource allocation information for VoIP services. Through this resource allocation, the terminal can efficiently transmit uplink signals (specifically, VoIP signals). | 08-26-2010 |
20110299488 | METHOD OF RADIO RESOURCE ALLOCATION AND METHOD OF NEIGHBOR INFORMATION TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM - A method for radio resource allocation in a wireless communication system comprises the steps of: receiving a channel indicator for indicating the frequency band used by a neighboring base station from a gateway that controls at least one base station that accesses the core network of a wireless communication system via an IP network; assigning to an available channel list a frequency band remaining after the frequency band indicated by said channel indicator is excluded from the entire frequency band, wherein said entire frequency band is divided into a plurality of frequency bands, and said channel indicator comprises indices that indicate respective frequency bands; and selecting, as one's own channel, at least one frequency band from said available channel list. The method enables finding of frequency bands which are used by neighboring base stations, and selection and use of a frequency band which is not used by neighboring base stations, and thus can reduce the interference between neighboring base stations, and efficiently use limited wireless resources. | 12-08-2011 |
20110305153 | METHOD FOR DESIGNATING A DUAL REGION - A method for designating a dual region according to one embodiment of the present invention comprises the steps of: enabling a terminal which is in communication with a first network to calculate a channel state threshold value corresponding to data; comparing the channel state value of the first network and the channel state value of the second network, acquired using a pilot signal of a second network, with the channel state threshold value; calculating a network evaluation score of the first network; comparing the network evaluation score of the first network with a network evaluation threshold value for designating a dual region, if the channel state value of the first network and the channel state value of the second network are larger than the channel state threshold value; and determining whether to designate a dual region in accordance with the result of the comparison using the network evaluation threshold value. The method of the present invention can reduce service cutoff or delay time during inter-radio access. | 12-15-2011 |
20110306346 | HANDOVER METHOD - A handover method according to one embodiment of the present invention comprises the steps of receiving the result of a cell measurement for a neighbor cell from a terminal, judging whether the neighbor cell is a near neighbor cell in accordance with the result of the cell measurement, calculating the ratio of the near neighbor cell to the total neighbor cells, and transmitting a command for a handover to a target cell to the terminal if the ratio exceeds the handover threshold value. The handover method of the present invention reduces interference between cells, and efficiently uses radio resources. | 12-15-2011 |
20120087246 | METHOD FOR PROCESSING TRAFFIC IN AN INTERMEDIATE ACCESS POINT - A method for processing traffic destined for a BS received from one or more terminals in an intermediate access point supporting two or more communication schemes is disclosed. The method includes receiving traffic from the one or more terminals according to a first communication scheme, measuring a congestion level of the received traffic, transmitting a first traffic being part of the received traffic to a second intermediate access point according to a second communication scheme, if the congestion level is a predetermined threshold or higher, and transmitting a second traffic being remaining traffic of the received traffic except the first traffic to the BS. | 04-12-2012 |
20120163179 | METHOD FOR PROCESSING TRAFFIC IN UNUSED BAND IN AN INTERMEDIATE ACCESS POINT - A method for efficiently processing traffic in an intermediate access point such as a relay station is disclosed. To process traffic directed from one or more terminals to a base station, an intermediate access point supporting two or more communication scheme receives traffic from the one or more terminals according to a first communication scheme, measures a congestion level of the received traffic, transmits a first traffic being part of the received traffic to a second intermediate access point according to a second communication scheme, if the congestion level is equal to or higher than a predetermined threshold, and transmits a second traffic being remaining traffic of the received traffic except the first traffic to the BS. | 06-28-2012 |
20120190374 | FEMTO BASE STATION AND METHOD FOR MANAGING RESOURCE THEREOF - A method for managing radio resource of a femto cell includes: providing, by the femto cell, a service to one or more UEs by using most of pre-set radio resource; receiving measurement results from the one or more UEs; determining whether or not one or more neighbor femto cells are closely located nearby based on the measurement results; and if it is determined that neighbor femto cells are closely located nearby, reducing the pre-set radio resource into a small radio resource and providing a service with the small radio resource. | 07-26-2012 |
20120238273 | METHOD AND APPARATUS FOR REASSIGNING FREQUENCY RESOURCE IN A FEMTO BASE STATION DURING HANDOVER - The present invention relates to an apparatus and method for arbitrating radio resources between femto base stations in which, when handover of a terminal takes place between femto base stations, the handover is carried out by reallocating radio resources of a serving femto base station assigned to the terminal to a target femto base station, to rearbitrate the radio resources and reduce the time required for rearbitration, thereby enhancing communication effectiveness. | 09-20-2012 |
20120287889 | METHOD OF ALLOCATING RESOURCE REGION TO REDUCE MAP OVERHEAD - A method of allocating a radio resource in a wireless access system includes transmitting, by a base station (BS) to a mobile station (MS), a MAP message comprising a persistent MAP information element, wherein the persistent MAP information element includes resource allocation information for persistently allocating a resource allocation region for communicating data with the MS and acknowledgment (ACK) information indicating an ACK transmission region; waiting for an ACK message from the MS, wherein the ACK message represents a successful reception of the persistent MAP information element; and determining that the persistent MAP information element has not been successfully received by the MS if the ACK message is not transmitted via the ACK transmission region. | 11-15-2012 |
20140342750 | METHOD AND APPARATUS FOR MEASURING A POSITION IN A WIRELESS ACCESS SYSTEM - The present invention relates to a method in which a first station receives position information using a second station positioned in the vicinity of the first station. The method includes the steps of: receiving a station identifier (STID) and at least one fake identifier (ID) from a base station; obtaining a fake ID of the second station; requesting position information on the second station from the base station using the fake ID of the obtained second station; and receiving the position information on the second station of the base station, wherein the fake ID is an identifier used for position measurement and is mapped to the STID. | 11-20-2014 |
20140369217 | METHOD AND APPARATUS FOR ALLOCATING MINIMUM GUARANTEED RESOURCE AMOUNT TO ACCESS POINT IN WIRELESS ACCESS SYSTEM - The present invention relates to a method in which an upper layer entity allocates resources to a plurality of access points (APs) in a wireless access system, including the plurality of APs and the upper layer entity for managing the plurality of APs, the method comprising the step of: sensing a change in minimum guaranteed resource amount allocated to each of the APs; acquiring, from each of the APs, AP-level topology information according to a degree of interference with adjacent APs and AP weight information given to each AP by a service provider; determining a minimum guaranteed resource amount for each of the APs based on the acquired AP-level topology information and AP weight information; and transmitting the determined minimum guaranteed resource amount to each of the APs. | 12-18-2014 |
Patent application number | Description | Published |
20090166593 | Antistatic Thermoplastic Resin Composition - An antistatic thermoplastic resin composition includes a thermoplastic resin, an anionic antistatic agent, and a conductive metal oxide. The antistatic thermoplastic resin composition has enough antistatic properties to form various shapes of product, and it is particularly applicable for the production of housings of electro-electronic products or delivery trays for manufacturing an electro-electronic product. | 07-02-2009 |
20090239975 | Polycarbonate Resin Composition with Good Flame Retardancy and Light Stability - Disclosed herein is a polycarbonate resin composition having good flame retardancy and light stability which can be useful for a LCD backlight component comprising: about 60 to about 95 parts by weight of a thermoplastic polycarbonate resin, and about 5 to about 40 parts by weight of a polyethylene naphthalate-terephthalate copolymer, about 5 to about 50 parts by weight of titanium dioxide based on about 100 parts by weight of a base resin comprising the thermoplastic polycarbonate resin and the polyethylene naphthalate-terephthalate copolymer, about 0.1 to about 10 parts by weight of an organosiloxane polymer based on about 100 parts by weight of a base resin comprising the thermoplastic polycarbonate resin and the polyethylene naphthalate-terephthalate copolymer, and about 0.05 to about 5 parts by weight of a fluorinated polyolefin resin based on about 100 parts by weight of a base resin comprising the thermoplastic polycarbonate resin and the polyethylene naphthalate-terephthalate copolymer. | 09-24-2009 |
20090239986 | Flame Retardant Thermoplastic Polyester Resin Composition - Disclosed herein is a flame retardant thermoplastic polyester resin composition comprising: (A) about 100 parts by weight of a polyester resin; (B) about 1 to about 60 parts by weight of a cyclic oligomeric phosphazene compound; (C) about 1 to about 50 parts by weight of a melamine compound; (D) about 1 to about 20 parts by weight of a inorganic metal compound; and (E) about 0.1 to about 5 parts by weight of a fluorinated polyolefin resin. The thermoplastic polyester resin composition may further contain a filler (F). | 09-24-2009 |
20090253855 | Polycarbonate-Polysiloxane Copolymer Resin Composition with High Impact Strength at Low Temperature and Mechanical Strength and Method for Preparing the Same - Disclosed herein is a polycarbonate-polysiloxane copolymer resin composition comprising: (A) about 100 parts by weight of a thermoplastic polycarbonate resin; and (B) about 0.1 to about 30 parts by weight of an organic siloxane polymer having a primary amine group. The polycarbonate-polysiloxane copolymer resin composition has high impact strength at low temperature and high mechanical strength. | 10-08-2009 |
20090253856 | Polycarbonate-Polysiloxane Copolymer Resin Composition with High Impact Strength at Low Temperature and Mechanical Strength and Method for Preparing the Same - Disclosed herein is a polycarbonate-polysiloxane copolymer resin composition comprising: (A) about 100 parts by weight of a thermoplastic polycarbonate resin; and (B) about 0.1 to about 30 parts by weight of an organo-siloxane polymer having an epoxy group. The polycarbonate-polysiloxane copolymer resin composition has high impact strength at low temperature and high mechanical strength. | 10-08-2009 |
20110060084 | Polycarbonate Resin Composition With Good Light Stability and Dimensional Stability - The present invention relates to a polycarbonate resin composition that can have excellent light stability and dimensional stability, including: (A) 70 to 95 parts by weight of a thermoplastic polycarbonate resin; (B) 5 to 40 parts by weight of a thermoplastic non-crystalline polyester copolymer; (C) 5 to 50 parts by weight of titanium dioxide; (D) 0.1 to 10 parts by weight of an organic siloxane copolymer; and (E) 0.05 to 5 parts by weight of a fluorinated polyolefin-based resin. The polycarbonate resin composition can have excellent light stability and dimensional stability and also can have excellent mechanical strength without reduced impact strength and workability. The polycarbonate resin composition can be used in molded products such as LCD backlight parts requiring product dimensional stability and other parts requiring light stability. | 03-10-2011 |
20110065848 | Flame Retardant Polycarbonate Resin Composition - The flame retardant polycarbonate resin composition of the present invention includes (A) a polycarbonate resin, (B) a rubber-modified vinyl-based graft copolymer, (C) a metal salt of sulfonic acid, and (D) an anti-drip agent including a fluorinated terpolymer. The polycarbonate resin composition of the present invention can have excellent flame retardancy, heat resistance, and mechanical strength, well-balanced mechanical properties such as impact resistance, heat resistance, and fine workability, and an excellent appearance characteristic. Therefore, it can be useful for fabrication of molded products such as electric household appliances, office appliances, electrical and electronic devices, and internal parts thereof. | 03-17-2011 |
20120165448 | Polyamide Resin Composition - A polyamide resin composition according to the present invention comprises (A) about 10 to about 70% by weight of crystalline polyamide resin, (B) about 10 to about 70% by weight of amorphous polyamide resin with a glass transition temperature of about 110 to about 200° C., (C) about 10 to about 60% by weight of inorganic filler, (D) about 10 to about 50% by weight of white pigment, and (E) about 0.05 to about 2 parts by weight of light stabilizer, based on about 100 parts by weight of the crystalline polyamide resin (A), the amorphous polyamide resin (B), the inorganic filler (C) and the white pigment (D), and can have excellent surface reflectance, heat resistance, mechanical strength, moldability, light stability and discoloration resistance. | 06-28-2012 |
20120329938 | Polyester Resin Composition - A polyester resin composition comprises (A) about 100 parts by weight of polyester resin with a melting point greater than about 200° C. and including repeat units of Formula 1; (B) about 0.1 to about 80 parts by weight of white pigment; and (C) about 0.01 to about 80 parts by weight of filler. | 12-27-2012 |
20130172444 | Thermoplastic Resin Composition Having Improved Thermal Conductivity and Articles Thereof - A thermoplastic resin composition comprises (A) about 30 to about 50% by weight of a thermoplastic resin, and (B) about 50 to about 70% by weight of a spherical magnesium oxide, wherein the thermal diffusivity of the thermoplastic resin composition in the horizontal or vertical direction is about 0.065 to about 0.20 cm | 07-04-2013 |
20130172453 | Polyamide Resin Composition Having Improved Physical Properties Including Thin-wall Moldability - A polyamide resin composition comprises (A) about 10 to about 70% by weight of a crystalline polyamide resin, (B) about 10 to about 70% by weight of an amorphous polyamide resin, (C) about 5 to about 30% by weight of an inorganic filler, and (D) about 10 to about 50% by weight of a white pigment. The polyamide resin composition can have good thin-wall moldability, light reflectance, yellowing resistance, impact strength and heat resistance. | 07-04-2013 |
20130172466 | Polyphenylene Sulfide Resin Composition with Improved Thermal Conductivity and Surface Appearance and Articles Thereof - A polyphenylene sulfide resin composition comprises (A) about 30 to about 50% by weight of a polyphenylene sulfide resin; (B) about 1 to about 5% by weight of an amorphous polyamide resin; and (C) about 45 to about 69% by weight thermally conductive insulating fillers. | 07-04-2013 |
20140309356 | Polyester Resin Composition - A polyester resin composition comprises (A) about 100 parts by weight of polyester resin with a melting point greater than about 200° C. and including repeat units of Formula 1; (B) about 0.1 to about 80 parts by weight of white pigment; and (C) about 0.01 to about 80 parts by weight of filler. | 10-16-2014 |
Patent application number | Description | Published |
20130100891 | TERMINAL, THE TRANSMISSION POWER OF WHICH IS LIMITED IN ACCORDANCE WITH AN ADJACENT CHANNEL INTERFERENCE RATIO - The present description relates to a terminal. The terminal comprises: a transceiving unit; and a control unit which controls the transceiving unit. When transmitting a signal in an uplink band that is spaced apart by a predetermined band so as to avoid continuity with the uplink band used by a terminal in an adjacent cell, the transceiving unit has an adjacent channel interference ratio, the value of which can be limited to a preset value in accordance with an offset relative to a predetermined band. | 04-25-2013 |
20130122840 | METHOD FOR MEASURING INTER-FREQUENCY - According to an embodiment of the present invention, a method is provided for measuring inter-frequency in a receiver including a plurality of reception antennas. The method may comprise the steps of: performing a service using a first frequency through a first antenna and/or a second antenna; measuring a second frequency using the first antenna while the service continues to be performed using the first frequency through the second antenna; and estimating the measurement result without the second frequency being practically measured through the second antenna by using the measurement result of the second frequency through the first antenna. | 05-16-2013 |
20130128765 | CELL MEASUREMENT METHOD AND TERMINAL - A cell measurement method of a User Equipment (UE) is disclosed. The cell measurement method may include receiving a radio resource configuration dedicated Information Element (IE) and a measurement object from a serving cell. The radio resource configuration dedicated IE may include first information about a measurement resource restriction pattern for a first cell and the measurement object may include a neighbor cell configuration IE for indicating MBMS Single Frequency Network (MBSFN) configurations of one or more neighbor cells. The measurement object may further include second information about a resource restriction pattern indicating subframes on which restriction is imposed in Reference Signal Received Power (RSRP) or Reference Signal Received Quality (RSRQ) measurements of one or more neighbor cells and a list of one or more neighbor cells to which the second information is applied. If the MBSFN configurations of the one or more neighbor cells are not known or not explicitly indicated by the neighbor cell configuration IE, the method may further include determining that the subframes indicated by the second information have not been configured as MBSFN subframes for the one or more neighbor cells listed in the list. | 05-23-2013 |
20130148591 | METHOD OF REDUCING TRANSMISSION POWER AND TERMINAL THEREOF - A method of reducing transmission power is provided. In the method, a signal is transmitted by performing maximum power reduction (MPR) on maximum output power for the signal to be transmitted, when multi-cluster transmission is performed in a single component carrier. Here, the MPR is performed differently depending on a resource allocation ratio A. The resource allocation ratio A is defined as a ratio between N | 06-13-2013 |
20130176983 | METHOD FOR RESOURCE SCHEDULING USING A CARRIER AGGREGATION TECHNIQUE - Provided is a scheduling method for allocating a discontinuous resource to a user equipment by using carrier aggregation. The scheduling method includes: receiving a power headroom report from the user equipment; determining discontinuous resource blocks to be allocated to the user equipment on the basis of the power headroom report among the remaining unallocated resource blocks, wherein the determined discontinuous resource blocks suppress occurrence of unnecessary emission; and allocating the determined discontinuous resource blocks to the user equipment. | 07-11-2013 |
20130237247 | POSITIONING METHOD AND APPARATUS IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for determining a positioning measurement interval in a wireless communication system are disclosed. The method includes acquiring a message including Observed Time Difference of Arrival (OTDOA) related data in a higher layer, wherein the OTDOA related data includes a plurality of cell identifiers and Positioning Reference Signal (PRS) configuration information of corresponding cells, transmitting the ODTOA related data to a physical layer from the higher layer, and determining the RSTD measurement interval by the following Equation by using a plurality of cell-specific PRS periods obtained using the PRS configuration information in the physical layer: T | 09-12-2013 |
20130260793 | TECHNIQUES FOR MEASURING A LOCATION OF UE - The present invention provides a method for measuring a location. The method comprises: receiving, by a User Equipment (UE) and from a serving cell, information on a bandwidth allocated for a positioning reference signal (PRS); receiving, by the User Equipment (UE) and from at least one or more neighbor cells, information on a bandwidth allocated for a PRS; determining whether there is a difference between the bandwidths; and measuring, by the UE and based on a result of the determination a timing difference between PRSs transmitted from the serving cell and the at least one or more neighbor cells. | 10-03-2013 |
20140071933 | METHOD FOR CONTROLLING TRANSMISSION POWER IN A WIRELESS ACCESS SYSTEM AND APPARATUS FOR SAME - The present invention relates to a method for controlling transmission power in a wireless access system that supports an operation in an unlicensed band, and to an apparatus for same. More particularly, the method for controlling the transmission power of a terminal in a wireless access system that supports a TV white space (TV WS) band comprises the steps of: allocating, to a terminal, an available frequency band which is not used by a licensed device from among the TV WS band; calculating, if a receiving band of another device exists in a band adjacent to the available frequency band, the maximum transmission power value of the terminal based on a level of interference which will not affect the reception of another device; and transmitting, to the terminal, transmission power control information for correcting the transmission power of the terminal on the basis of the maximum transmission power value. | 03-13-2014 |
20140080501 | METHOD FOR ALLOCATING WIRELESS RESOURCES IN A WIRELESS ACCESS SYSTEM, AND APPARATUS THEREFOR - The present invention relates to a method for allocating wireless resources in a wireless access system that supports an operation in an unlicensed band, as well as to an apparatus for the method. More particularly, a method for allocating wireless resources in a wireless access system that supports a television white space (TV WS) band comprises the steps of: allocating, to a terminal and from among TV WS bands, available frequency bands which are not used by a licensed device; if a receiving band of another device exists in a neighboring band of the available frequency bands, setting up a guard band in a portion of the band adjacent to the neighboring band from among the available frequency bands; allocating wireless resources to a terminal in a frequency band from among the available frequency bands, excluding the guard band; and receiving uplink data from the terminal through the wireless resources, wherein the guard band is determined using the allocation location of the wireless resources, the amount of wireless resources, and the transmission power of the terminal. | 03-20-2014 |
20140086095 | METHOD OF MEASURING CHANNEL QUALITY IN A WIRELESS ACCESS SYSTEM AND APPARATUS FOR SAME - The present invention relates to a method of measuring channel quality in a wireless access system and an apparatus for same. The method of measuring channel quality in a wireless access system includes the steps of: measuring channel quality using each CRS (cell-specific reference signal) transmitted in 0 | 03-27-2014 |
20140086195 | METHOD FOR TRANSMITTING SIGNAL IN WIRELESS ACCESS SYSTEM AND APPARATUS FOR SAME - In the present invention, a method for transmitting a signal in a wireless access system and an apparatus for same are disclosed, which more particularly, comprise the steps of: receiving additional maximum power reduction (A-MPR) according to a first network signaling from a base station, when network signaling that is received from the base station is identical to the first network signaling that is predetermined; reducing maximum transmission power of a terminal using the A-MPR which is received; and transmitting an uplink signal to the base station within the scope of the maximum transmission power of the terminal that is reduced, wherein the A-MPR is outputted by considering interference from frequencies adjacent to a band that is allocated to the terminal. | 03-27-2014 |
20140126504 | NETWORK COMMUNICATION METHOD AND TERMINAL IN A HETEROGENEOUS NETWORK ENVIRONMENT - The present invention relates to a communication method in a heterogeneous network environment using the same frequency band. The method includes: transmitting by a transmitting station a message for using an arbitrary channel in the frequency band to a base station or a heterogeneous terminal using a heterogeneous communication technique; and performing by the transmitting station a data communication with a receiving station through the arbitrary channel. The message includes a time in which the transmitting station uses the arbitrary channel for the data communication. The message is a message with which the heterogeneous base station or the heterogeneous terminal, which receives the message, stops the data communication using the arbitrary channel for the time. Additionally, in this specification, a mobile communication terminal in a heterogeneous network environment using the same frequency band includes: a wireless communication unit for transmitting/receiving a wireless signal to/from outside; and a processor for controlling the wireless communication unit to transmit a message for using an arbitrary channel in the frequency band to a base station or a heterogeneous terminal, which uses a heterogeneous communication technique. The message includes a time that the terminal uses the arbitrary channel for the data communication. The message is a message with which the heterogeneous base station or the heterogeneous terminal, which receives the message, stops the data communication using the arbitrary channel for the time. | 05-08-2014 |
20140192671 | CELL MEASURING METHOD AND INFORMATION TRANSMITTING METHOD THEREFOR - According to one embodiment of the present invention, provided is a method in which a terminal performs cell measurements. The method may include the steps of: receiving information on a resource restriction pattern indicating a subframe to which a restriction is applied for performing measurement on one or more neighboring cells; determining that a subframe indicated by second information is not configured as a Multimedia Broadcast over Single Frequency Network (MBSFN) subframe for the neighboring cells if an MBSFN configuration of each of the neighboring cells is not known or not clearly indicated; and performing measurements using a plurality of cell-specific reference signals (CRSs) received from the neighboring cells on the subframe which is not configured as the MBSFN subframe. | 07-10-2014 |
20140219131 | METHOD FOR MEASURING CELL IN WIRELESS ACCESS SYSTEM, AND DEVICE THEREFOR - Disclosed are a method for measuring a cell in a wireless access system and a device therefor. Specifically, the method comprises the steps of: receiving a pattern for reference signal received power (RSRP)/reference signal received quality (RSRQ) measurement; measuring a received signal strength indicator (RSSI) from a plurality of subframes included in the pattern for the RSRP/RSRQ measurement; extracting almost blank subframes (ABSs) from the plurality of subframes included in the pattern for the RSRP/RSRQ measurement by using the measured RSSI; and measuring the RSRP/RSRQ from the plurality of subframes included in the pattern for the RSRP/RSRQ measurement in consideration of the extracted ABSs. | 08-07-2014 |
20150029882 | METHOD AND TERMINAL FOR DETECTING PHICH IN WIRELESS ACCESS SYSTEM - The present invention relates to a method and terminal for detecting a physical hybrid-ARQ indicator channel (PHICH) in a wireless access system that supports enhanced inter-cell interference coordination. In particular, the method includes: determining whether the PHICH exists in only a 0 | 01-29-2015 |
20150031410 | METHOD AND DEVICE FOR CONTROLLING UPLINK TRANSMIT POWER IN WIRELESS ACCESS SYSTEM - The present invention discloses a method and device for controlling uplink transmit power of a terminal in a wireless access system that supports carrier aggregation/multiple cells. In particular, the method may include receiving a first TA value and a second TA value for a first timing advance group (TAG) including one or more component carriers and a second TAG including one or more component carriers, adjusting uplink transmission timing of the first TAG and the second TAG by using the first TA value and the second TA value, resetting a transient period between a first group of component carriers and a second group of component carriers exceeds a power control requirement, and controlling uplink transmit power according to the reset transient period. | 01-29-2015 |
20150071100 | METHOD FOR ESTIMATING ABS ZONE IN WIRELESS ACCESS SYSTEM AND APPARATUS FOR SAME - Disclosed in the present invention are a method for estimating an almost blank subframe (ABS) zone in a wireless access system in which a macro cell and a pico cell coexist, and an apparatus for same. More specifically, the present invention comprises the steps of measuring reference signal received power (RSRP) by using a cell-specific reference signal which is inserted into a subframe of the macro cell, and determining whether the format of the subframe is a multicast broadcast single frequency network (MBSFN) ABS by comparing an RSRP measurement value from a zeroth orthogonal frequency division multiplexing (OFDM) symbol of the subframe, and an RSRP measurement value from a symbol that is not the zeroth OFDM symbol. | 03-12-2015 |
20150071203 | WIRELESS EQUIPMENT FOR TRANSMITTING UPLINK SIGNAL THROUGH REDUCED TRANSMISSION RESOURCE BLOCK AND POWER, AND ENODEB - According to one embodiment of the present invention, provided is a wireless equipment for transmitting an uplink signal through a reduced transmission resource block (RB) in a wireless communication system. The wireless equipment can comprise: a processor; and a radio frequency (RF) unit for transmitting an uplink signal under control of the processor. When the RF unit is set to a predetermined channel bandwidth and a predetermined frequency range and must satisfy a predetermined maximum allowed value of spurious radiation to protect another frequency range, the uplink signal can be transmitted according to a predetermined maximum number of RBs instead of a total number of RBs for the predetermined channel bandwidth. | 03-12-2015 |
20150072708 | METHOD FOR MEASURING POSITION IN WIRELESS COMMUNICATION SYSTEM - According to one embodiment of the present specification, provided is a method for measuring a position in a wireless communication system. The method for measuring a position comprises the steps of: receiving observed time difference of arrival (OTDOA) assistance data from a positioning server; increasing an FFT sampling size when the value of a bandwidth of a positioning reference signal (PRS) included in the OTDOA assistance data is less than a first value; processing a plurality of received PRSs through the increased FFT sampling size; and calculating a reference signal time difference (RSTD) between the plurality of received PRSs | 03-12-2015 |