Patent application number | Description | Published |
20090040999 | METHOD OF TRANSMITTING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - A method of transmitting control information in a wireless communication system includes configuring a burst including data symbols and a midamble and transmitting the burst through an uplink shared channel. The data symbols and the midamble carry the same control information. Even if control information is transmitted on an uplink shared channel, reception errors in a base station can be reduced by improving transmission reliability. | 02-12-2009 |
20090197599 | METHOD OF TRANSMITTING/UPDATING SYSTEM INFORMATION - A method of transmitting/updating system informations is disclosed. The present invention includes transmitting channel descriptor transmission control information including an index of the system information classified into a plurality of groups to a terminal at a start timing point of an arbitrary control interval and transmitting the system information of a corresponding group to the terminal at a transmission timing point according to the index in the control interval. According to the above embodiments of the present invention, it is able to non-periodically perform scheduling on system informations classified by a base station. It is able to decrease an update time of system information as well as a time taken for network entry and initialization of terminals. And, it is able to obtain distributed effect of an initial ranging attempt in aspect of system. | 08-06-2009 |
20090232163 | METHOD FOR GENERATING SUBFRAME INCLUDING RESOURCE DISTRIBUTION INFORMATION - A method for generating a subframe including resource distribution information is disclosed. The method for generating a subframe includes arranging resource allocation information in a subframe by sequentially allocating a localized permutation and a distributed permutation, and arranging a subframe control header including a resource unit index in a predetermined location by a system parameter, wherein the resource unit index indicates a frequency resource location of the resource allocation information. When both the localized permutation and the distributed permutation are used, a resource distribution method is transmitted to a user equipment. Therefore, an effect of the distributed permutation can be maximized without a great influence on the performance of the localized permutation, and a problem of decoding failure or latency can be prevented. | 09-17-2009 |
20100316026 | METHOD OF MANAGING CARRIERS IN A BROADBAND WIRELESS ACCESS SYSTEM - A method for managing carriers allocated to a mobile station in a broadband wireless access system supporting multiple carriers, and an apparatus for use in the method are disclosed. A carrier management method for allowing a mobile station to perform carrier management in a broadband wireless access system supporting multiple carriers includes receiving a first message, which includes activation information indicating activation of at least one target carrier from among one or more second carriers allocated through a first carrier, from a base station, and transmitting a second message, which informs the base station of readiness or non-readiness of the at least one target carrier according to a result of the activation, to the base station. The activation information includes information indicating an activation time point, and the transmitting of the second message is performed at a specific time indicated by the activation time point information. | 12-16-2010 |
20110002293 | METHOD FOR ALLOCATING CONTROL CHANNEL - A method for allocating a submap is disclosed. The method includes configuring a subframe including one or more resource areas according to a size of the submap, allocating the submap and a control header including subframe configuration information and submap information to the one or more resource areas, and transmitting the control header. | 01-06-2011 |
20110026495 | METHOD FOR PERFORMING CARRIER MANAGEMENT PROCEDURE IN A MULTI-CARRIER SUPPORTED WIDEBAND WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR THE SAME - A method and apparatus performing carrier management in a broadband wireless communication system supporting multi-carrier (MC) are disclosed. A method for a single-carrier supported mobile station (MS) to perform a carrier change with a MC supported base station (BS) includes transmitting a message indicating a support of a basic MC mode in which the MS is aware of a MC operation of the BS, receiving a carrier management command message including an action code and an action time on a serving carrier, transmitting, in response to the carrier management command message, a confirmation message indicating readiness of signal transmission/reception through a target carrier on a target carrier, and receiving a control signal and data from the BS on the target carrier, wherein the serving carrier and the target carrier are controlled by a common Medium Access Control (MAC) of the BS. | 02-03-2011 |
20110029831 | METHOD OF TRANSMITTING AND RECEIVING ARQ FEEDBACK INFORMATION - A method for transmitting and receiving ARQ feedback information in a wireless communication system is disclosed. A method for allowing a mobile station to transmit an ARQ feedback in a broadband wireless access system includes receiving an ARQ block and an ARQ feedback polling from the base station, wherein the ARQ feedback polling requests the mobile station to transmit ARQ feedback information indicating whether the ARQ block is successfully received, receiving a first uplink resource for transmitting the ARQ feedback from the base station, and determining whether the received ARQ block is successfully received. The first uplink resource has a minimum size capable of being allocated to the ARQ feedback information. | 02-03-2011 |
20110039593 | METHOD FOR PERFORMING CARRIER MANAGEMENT PROCEDURE IN A MULTI-CARRIER SUPPORTED WIDEBAND WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR THE SAME - A method and apparatus for performing a carrier management in a broadband wireless communication system supporting multi-carriers are disclosed. A method for a mobile station to perform a carrier management procedure with a base station supporting multiple carriers includes receiving a carrier management command message including an action code indicating a primary carrier change and an action time, on a serving primary carrier, transmitting an acknowledgement message indicating that the carrier management command message is successfully received in the mobile station, on the serving primary carrier, and switching the primary carrier to a target carrier indicated by the carrier management command message at the action time, wherein the action time is set to a value more than a retransmission timer, the retransmission timer is set to a time during which the base station waits for receiving the acknowledgement message in response to the carrier management command message. | 02-17-2011 |
20110044233 | METHOD OF UPDATING BS SYSTEM INFORMATION OF A RELAY STATION IN A BROADBAND WIRELESS ACCESS SYSTEM - A method for efficiently updating system information of a base station at a relay station of a broadband wireless access system and an apparatus for performing the method are disclosed. The method for updating system information of an advanced base station (ABS) at an advanced relay station (ARS) of a broadband wireless access system comprises receiving a first message, which includes changed information of the system information of the base station, from the base station; transmitting a second message for acknowledgment of the first message to the base station; and performing application for the changed information. | 02-24-2011 |
20110051848 | METHOD FOR TRANSMITTING SYSTEM INFORMATION - A method for configuring system information, a method for transmitting system information, and a method for transmitting resource ratio information are disclosed. A method for receiving system information elements includes receiving a first message including a fixed-size system information element from a base station, and receiving a second message including an variable-size system information element from the base station. | 03-03-2011 |
20110090856 | METHOD OF EFFICIENT RANGING PROCEDURE CONSIDERING RANGING PURPOSE IN BROADBAND WIRELESS ACCESS SYSTEM - A broadband wireless access system and, more particularly, a method for a mobile station and a base station to perform an efficient ranging procedure considering a ranging purpose and a device for performing the same are disclosed herein. A method of a mobile station for performing ranging in a broadband wireless access system, the method includes the steps of transmitting a first ranging preamble code for requesting ranging to a base station through a first ranging opportunity of a first frame, and, when a first message is received from the base station before a timer indicating a limited time point is expired, wherein the first message including a response to the first ranging preamble code is transmitted during the limited time point, determining whether or not the ranging request is successfully made by using the first message. | 04-21-2011 |
20110103325 | METHOD FOR MAPPING RANGING CHANNELS AND OPPORTUNITIES IN A BROADBAND WIRELESS ACCESS SYSTEM - A method for efficiently updating system information of a base station at a relay station of a broadband wireless access system and an apparatus for performing the method are disclosed. The method for updating system information of an advanced base station (ABS) at an advanced relay station (ARS) of a broadband wireless access system comprises receiving a first message, which includes changed information of the system information of the base station, from the base station; transmitting a second message for acknowledgment of the first message to the base station; and performing application for the changed information. | 05-05-2011 |
20110110341 | METHOD FOR TRANSMITTING AND RECEIVING BROADCASTING CHANNELS - A method for transmitting and receiving a broadcast channel is disclosed. A wireless access system, a method for effectively transmitting and receiving a broadcast channel, a variety of superframe structures, and a super frame header structure are disclosed. A method for effectively receiving a broadcast channel includes receiving, by a mobile station (MS), a first broadcast channel including first information about a modulation and coding scheme (MCS) applied to a second broadcast channel, and receiving the second broadcast channel using the first information. The first broadcast channel is transmitted using a fixed modulation and coding scheme (MCS) value, and the second broadcast channel is transmitted using a variable modulation and coding scheme (MCS) value. | 05-12-2011 |
20110188450 | METHOD AND APPARATUS OF TRANSMITTING AND RECEIVING SYSTEM INFORMATION IN A WIRELESS SYSTEM - A method and apparatus for transmitting and receiving system information in a wireless communication system are disclosed. A method for receiving system information by a mobile station (MS) of a wireless communication system includes receiving a secondary superframe header (S-SFH) change cycle from a base station (BS), and receiving a primary superframe header information element (P-SFH IE) including a first field indicating a change count of a plurality of secondary superframe header subpacket information elements (S-SFH SP IEs) from the base station (BS). Once each of the plurality of S-SFH SP IEs is changed, each of the plurality of S-SFH SP IEs remains unchanged during one or more S-SFH change cycles. | 08-04-2011 |
20110194529 | RANGING BY MOBILE STATION IN LEGACY SUPPORT MODE - Ranging by a mobile station in a legacy support mode is disclosed. According to embodiments of the present invention, S-SFH information transmitted by a base station in a system operating in FDM based uplink mixed mode is configured in a manner different from that of the FDM based uplink mixed mode. And, a mobile station performs a ranging by interpreting S-SFH differently according to a presence or non-presence of the mixed mode. Therefore, the present invention efficiently manages the ranging of the mobile station and reduces unnecessary signaling overhead. | 08-11-2011 |
20110211541 | METHOD FOR GENERATING A CARRIER GROUP AND METHOD FOR TRANSMITTING CARRIER GROUP INFORMATION - Disclosed are: a variety of methods and apparatuses for aggregating a plurality of carriers and using the carrier aggregation in a wireless connection system; and a variety of methods and apparatuses for providing information on the structure of a carrier generated by aggregating a plurality of carriers. A method for transmitting and receiving carrier group information, according to one embodiment of the present invention, includes the steps of: a mobile terminal transmitting a first message containing multi-carrier performance information of the mobile terminal to a base station; and the mobile terminal receiving, from the base station, a second message containing allocation information on the wireless resource allocated on the basis of the multi-carrier information. Here, multi-carrier performance information includes a spectral mask-type parameter for the supportable multi-carrier of the mobile terminal. | 09-01-2011 |
20110287772 | METHOD AND APPARATUS OF OPERATING FEMTO BASE STATION IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus of operating a femto base station in a wireless communication system is provided. A first announcement message indicating service interruption is transmitted. A second announcement message indicating service recovery is transmitted. The second announcement message is transmitted to a user equipment or a macro base station having a wider cell area than the femto base station. Reliability of a communication service can be maintained for a user equipment even if a service of a femto base station is temporarily interrupted. | 11-24-2011 |
20110319013 | METHOD FOR CONTROLLING MOBILITY OF TERMINAL IN BROADBAND WIRELESS ACCESS SYSTEM INCLUDING RELAY STATION - The present invention relates to method and device that controls the mobility of a terminal in a broadband wireless access system including a relay station. The present invention provides an efficient method for controlling terminal mobility of a relay station and a method for performing handover of a terminal. The method for controlling mobility of terminal at a relay station in a broadband wireless access system according to one embodiment of the present invention comprises step wherein at least one neighboring base station entity searched is added in a list, and a step wherein a broadcast message including the list is transmitted to the terminal. | 12-29-2011 |
20120044895 | METHOD OF TRANSMITTING AND RECEIVING AN ACKNOWLEDGEMENT IN A WIRELESS SYSTEM - A method for transmitting and receiving an ACKnowledgment (ACK) in a wireless communication system is disclosed. The method includes transmitting a bandwidth request indicator to a Base Station (BS); and receiving an ACK for the transmitted bandwidth request indicator from the BS, the ACK including an extended A-MAP Type field, wherein the extended A-MAP Type field indicates a format of the ACK. | 02-23-2012 |
20120093079 | METHOD AND APPARATUS FOR COORDINATING PERFORMANCE OF MULTIPLE CARRIERS - The present invention relates to a wireless access system which supports multiple carriers, and disclosed is a method for coordinating the performance of the multiple carriers and an apparatus for supporting same. The method for coordinating the performance of the multiple carriers according to the present invention broadly consists of two steps. For example, the method comprises the steps of coordinating the basic performance of the multiple carriers in mobile user equipment and coordinating the extended performance of the multiple carriers in the mobile user equipment. | 04-19-2012 |
20120093103 | METHOD AND APPARATUS FOR EXECUTING CARRIER MANAGEMENT PROCESS IN MULTI-CARRIER SUPPORTING BROADBAND WIRELESS COMMUNICATION SYSTEM - The present invention relates to a broadband wireless communication system, and disclosed are a method and an apparatus for executing a carrier management process in a broadband wireless communication system which supports multi-carrier. According to one embodiment of the present invention, a method for executing carrier management by a terminal in a communication system which supports the multi-carrier comprises the steps of: receiving a signal which indicates control channel allocation for a 1st carrier from a base station; receiving a signal which indicates control channel de-allocation for a 2nd carrier from the base station; activating the 1st carrier if the 1st carrier on which the control channel allocation is indicated is in an inactivate state; and inactivating the 2nd carrier if the 2nd carrier on which the control channel de-allocation is indicates is in an activated state. | 04-19-2012 |
20120099542 | CENTER FREQUENCY CONTROL METHOD IN WIRELESS ACCESS SYSTEM - The present invention relates to a method and an apparatus that supports a multi-carrier wireless access system for transmitting and receiving system information. The 1st embodiment of the present invention is a method for controlling a center frequency in a wireless access system comprising the steps of: receiving a control message including a 1st parameter which indicates a configuration of carrier groups and a 2nd parameter which indicates whether the center frequency is controlled from a base station; deriving the center frequency of carriers allocated to a mobile terminal by using the 1st parameter; and controlling the center frequency by using the 2nd parameter. | 04-26-2012 |
20120106481 | METHOD AND APPARATUS FOR ADJUSTING A PARAMETER OF A TERMINAL IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and apparatus for adjusting a parameter of a terminal in a wireless communication system. The method for adjusting a parameter of a terminal in a wireless communication system, according to one concept of the present invention, is configured such that the base station transmits, to the terminal, a ranging acknowledgement (hereinafter referred to as “RNG-ACK”) message including a first field which indicates whether the RNG-ACK message is transmitted in a broadcast format, and receives, from the terminal, a signal in accordance with the parameter changed in accordance with the RNG-ACK message. | 05-03-2012 |
20120127897 | METHOD FOR RETRANSMITTING DATA IN WIRELESS COMMUNICATION SYSTEM - A method for retransmitting data in wireless communication system is disclosed. MS can receive a NACK (Not-Acknowledge) signal from a base station (BS) through a specific downlink subframe of a specific frame in a first superframe, and the MS can retransmits the data using a second uplink subframe in a first frame in a second superframe subsequent to a first superframe. In this case, a index of the second uplink subframe may be 1. The wireless communication system can support the Half-Frequency Division Duplex (H-FDD) scheme. A first uplink subframe in the first frame of the second superframe can be punctured. | 05-24-2012 |
20120127919 | Method and Apparatus of Requiring Uplink Resource and Handover in Wireless Communication System Including Relay Stations - A method of requiring uplink resource and handover in a wireless communication system including relay stations is disclosed. The present invention includes transmitting request for uplink resource allocation to a relay station and receiving a message indicating the relay station cannot allocate an uplink resource to the mobile station within a period for which the mobile station waits for a response, from the relay station. | 05-24-2012 |
20120147734 | APPARATUS AND METHOD FOR RETRANSMITTING DATA BASED ON HARQ SCHEME IN WIRELESS COMMUNICATION SYSTEM - A method for retransmitting data using an HARQ method and a mobile station using the same in a wireless telecommunications system are disclosed herein. When all bits of a resource index field in an uplink basic assignment A-MAP received from a base station through a specific frame are set to 1, the mobile station may not retransmit an HARQ sub-packet from an uplink subframe within the specific frame. In this case, the mobile station may retransmit an HARQ sub-packet from an uplink subframe within a frame subsequent to the specific frame. At this point, the uplink subframe and resource index of the subsequent frame respectively correspond to the subframe and resource index having the same index and resource index of an uplink subframe predetermined in association with the retransmission of the mobile station in a previous frame. The resource index corresponds to information indicating where the assigned resource is positioned within the corresponding subframe and how large the size of the assigned resource is. Alternatively, the mobile station may receive once again the uplink basic assignment A-MAP, so as to retransmit the HARQ sub-packet from an uplink subframe designated by the uplink basic assignment A-MAP. | 06-14-2012 |
20120147832 | APPARATUS AND METHOD FOR PERFORMING HARQ PROCEDURE - A apparatus and method for efficiently performing an HARQ procedure in a wireless communication system are disclosed. According to the method for performing an HARQ procedure, waste of unnecessary resources caused by continuous failure in packet transmission can be avoided, wherein the failure occurs due to the error of the uplink basic assignment A-MAP IE for retransmission. | 06-14-2012 |
20120147902 | APPARATUS AND METHODS FOR TRANSMITTING AND RECEIVING MAC PDU USING MAC HEADERS - An apparatus and methods for transmitting and receiving MAC PDU (medium access control protocol data unit) using a MAC Header are disclosed. The method includes steps of establishing, by a transmitting end with a receiving end, a connection associated with a service flow, constructing, by the transmitting end, the MAC PDU comprising a MAC header which is configured according to the connection, and transmitting the MAC PDU to the receiving end, wherein the MAC header is general MAC header (GMH) if the connection is associated with a general data packet transmission, and wherein the MAC header is short-packet MAC header (SPMH) if the connection is associated with a small data packet transmission and non-ARQ transmission. | 06-14-2012 |
20120163321 | METHOD AND APPARATUS FOR REQUESTING BANDWIDTH IN A WIRELESS COMMUNICATION SYSTEM - A method for requesting a bandwidth at a mobile terminal in a wireless communication system includes receiving, from a base station, information on whether the base station can compensate for changes in bandwidth request quantity caused by fragmentation or packing of a protocol data unit (PDU); requesting, to the base station, a bandwidth required for transmitting a first PDU; separating the first PDU and generating a second PDU and a third PDU in consideration of the quantity of allocated bandwidth when the quantity of bandwidth allocated by the base station is smaller than the requested quantity; transmitting the second PDU to the base station; and starting a first timer at the point in time the bandwidth allocation is received or at the point in time when the second PDU is transmitted and the information indicates that the base station can compensate for the changes in the bandwidth request quantity. | 06-28-2012 |
20120163378 | APPARATUS FOR TRANSMITTING MAC PDU WITH A FRAGMENTATION AND PACKING EXTENDED HEADER AND METHOD THEREOF - A method of transmitting data in a transmitting stage is disclosed. The present invention includes configuring a MAC PDU (medium access control protocol data unit) including fragmented data and a fragmentation extended header (FEH) and a packing extended header (PEH) for transmitting the fragmented data and transmitting the configured MAC PDU to a receiving stage. Preferably, the FEH or the PEH includes an extended header type field indicating a type of an extended header and a fragmentation control field including information on the fragmented data. | 06-28-2012 |
20120170506 | METHOD AND APPARATUS FOR TRANSMITTING FRAME IN WIRELESS COMMUNICATION SYSTEM INCLUDING RELAY STATION - Provided are a method and an apparatus for transmitting a frame in a wireless communication system including a relay station. A base station sets a frame including a downlink (DL) access zone for transmitting a signal to the relay station and a DL relay zone for transmitting the signal to the relay station or a terminal, and transmits the frame. The DL access zone comprises a multiple-input multiple-output (MIMO) midamble for the terminal and the DL relay zone comprises an R-amble as an additional MIMO midamble. | 07-05-2012 |
20120170509 | EFFICIENT RELAY AUTOMATIC REPEAT REQUEST PROCEDURE IN BROADBAND WIRELESS ACCESS SYSTEM - The present invention relates to a broadband wireless access system including a relay station, and more particularly to an efficient procedure of Automatic Repeat Request (ARQ) operations in a relay station and an apparatus for performing the same. A method for transmitting data for at least one terminal (AMS) from a base station (ABS) to a relay station (ARS) in the broadband wireless access system according to an embodiment of the present invention comprises the steps of generating second transmission unit data using a plurality of first transmission unit data to which different relay sequence numbers are assigned; and transmitting the second transmission unit data to the relay station. The second transmission unit data can be transmitted through the same tunnel as the first transmission unit data. | 07-05-2012 |
20120188931 | STRUCTURE OF AN EFFICIENT RELAY MEDIUM ACCESS CONTROL PROTOCOL DATA UNIT IN A BROADBAND WIRELESS ACCESS SYSTEM, AND DATA TRANSMISSION METHOD USING SAME - A broadband wireless access system including a relay station and a structure of a relay medium access control (MAC) protocol data unit (PDU) are disclosed. A method in which a base station (ABS) transmits data for a plurality of mobile stations (AMSs) to a relay station (ARS) in a broadband wireless access system includes generating second transmission unit data using a plurality of first transmission unit data oriented toward the plurality of mobile stations and using mobile station identifier information for indicating mobile stations to which each of the plurality of first transmission data unit data is to be transmitted and transmitting the second transmission unit data to the relay station. | 07-26-2012 |
20120230231 | METHOD IN WHICH A MOBILE TERMINAL TRANSMITS/RECEIVES A SIGNAL USING A PREDETERMINED TDD FRAME STRUCTURE IN A WIRELESS COMMUNICATION SYSTEM - The mobile station for transceiving signals using a predetermined time division duplex (TDD) frame structure in a wireless communication system includes a receiver for receiving a midamble from a base station (BS), and a relay station (RS). The receiver receives, from the BS, a first midamble through a second subframe of a downlink access zone of the BS and/or through a first subframe of a downlink relay zone that follows the downlink access zone. Alternatively, the receiver receives, from the RS, a second midamble through a second subframe of a downlink access zone of the RS. A transition gap in a downlink region is located in the last subframe of the downlink access zone of the RS, which follows the downlink access zone of the RS, and a transition gap in an uplink region is located in a first subframe of an uplink relay zone of the RS. | 09-13-2012 |
20120230265 | METHOD FOR EFFICIENTLY MANAGING CARRIERS IN BROADBAND WIRELESS ACCESS SYSTEM - The present invention relates to a method and a device for managing carriers allocated to a terminal in a broadband wireless access system that supports multi-carrier. A method for managing carriers by a terminal in a broadband wireless access system supporting multi-carrier includes transmitting, to a base station, activation requests information for requesting the activation of at least one second carrier allocated from the base station through a first carrier according to the power state of the terminal, receiving, from the base station, a first message that includes activation indication information for indicating the activation of at least one target carrier of the at least one second carrier, and transmitting to the base station a second message which notifies the base station whether the at least one target carrier is ready per activation. | 09-13-2012 |
20120236853 | APPARATUS FOR TRANSMITTING MAC PDU WITH A FRAGMENTATION AND PACKING EXTENDED HEADER AND METHOD THEREOF - A method of transmitting data in a transmitting stage is disclosed. The present invention includes configuring a MAC PDU (medium access control protocol data unit) including fragmented data and a fragmentation extended header (FEH) and a packing extended header (PEH) for transmitting the fragmented data and transmitting the configured MAC PDU to a receiving stage. Preferably, the FEH or the PEH includes an extended header type field indicating a type of an extended header and a fragmentation control field including information on the fragmented data. | 09-20-2012 |
20120263106 | METHOD AND APPARATUS FOR TRANSMITTING PAGING MESSAGE IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for transmitting uplink (UL) data in a wireless communication system is provided. A machine-to-machine (M2M) device receives a deregistration response message including a transmission type and a maximum number of paging cycle during an idle mode entry, waits to receive a paging message for the M2M device to transmit the UL data during a period corresponding to up to (the maximum number of paging cycle×a length of paging cycle), and transmits the UL data. | 10-18-2012 |
20120300666 | COORDINATED COMMUNICATION METHOD USING MULTIPLE TERMINALS - A method of performing coordinated communication by a relay station is provided. The method includes: receiving a signal from a terminal; measuring channel state information (CSI) indicating a state of a channel which receives the signal; comparing the CSI with a predetermined threshold to determine whether to decode the received signal; and if it is determined to decode the received signal, removing noise by decoding the received signal, and then performing decode and forward (DAF) in which the signal is re-encoded and transmitted to a base station, and if it is determined not to decode the received signal, performing amplify and forward (AAF) in which the received signal is amplified and forwarded to the base station. The CSI may be at least one of a frame error rate (FER), a bit error rate (BER), a signal to noise ratio (SNR), and a signal to interference plus noise ratio (SINR). Accordingly, a time delay consumed for channel decoding in hybrid DAF coordinated communication can be decreased, data transmission and resource usage can be more effectively achieved in coordinated communication using multiple terminals, and unnecessary power consumption can be decreased. | 11-29-2012 |
20120320837 | METHOD FOR ALLOCATING GROUP RESOURCE IN BROADBAND WIRELESS ACCESS SYSTEM - A method of transmitting a signal from a base station to a mobile station through Group Resource Allocation (GRA) includes allocating the mobile station to any one of a plurality of groups each including one or more mobile stations, transmitting, to the mobile station, a group configuration message including one or more pieces of burst size information used in the group, to which the mobile station is allocated, and one or more pieces of resource allocation bitmap information which is differently configured according to burst sizes, and transmitting bursts to the mobile station through a resource unit indicated by the resource allocation bitmap. | 12-20-2012 |
20120322457 | METHOD AND APPARATUS FOR TRANSMITTING DATA IN WIRELESS COMMUNICATION SYSTEM - A method of transmitting data in a wireless communication system is provided. A machine-to-machine (M2M) device transmits a first ranging request message including a M2M short message service (SMS) request indicating that the M2M device has a M2M SMS to transmit, and receives a first ranging response message including a M2M SMS response, a basic connection identifier (CID) and a temporary CID timer. If the M2M SMS request is accepted by a base station, the M2M device transmits a second ranging request message including the M2M SMS based on the basic CID, and receives a second ranging response message including a M2M SMS confirmation indicating whether the reception of the M2M SMS is successful or not by the base station. | 12-20-2012 |
20130005342 | METHOD FOR TRANSMITTING SHORT MESSAGES IN A BROADBAND WIRELESS ACCESS SYSTEM - The present invention relates to a method enabling a base station and a terminal to reliably transmit short messages in a broadband wireless access system. According to one embodiment of the present invention, the method wherein a terminal receives a short message service (SMS) in a broadband wireless access system comprises the following steps: transmitting a first message for carrying out ranging to a base station; receiving a second message, which comprises SMS information and uplink resource allocation information for the transmission of a third message, from the base station as a response to the first message; and transmitting a third message, which indicates the state of the reception of the second message, to the base station by means of uplink resources which are indicated by the uplink resources allocation information. | 01-03-2013 |
20130010691 | METHOD FOR UPDATING CARRIER INFORMATION IN A BROADBAND WIRELESS ACCESS SYSTEM - The present invention relates to a broadband wireless access system, and more particularly, to a method in which a terminal acquires and updates global carrier configuration information of base stations in a network, and to an apparatus for performing the method. According to one embodiment of the present invention, a method in which a terminal acquires carrier configuration information in a broadband wireless access system that supports multiple carriers comprises the following steps; transmitting a first message containing a change count value of the carrier configuration information acquired by the terminal: receiving, from the base station and in response to the first message, a second message containing the current change count value of the carrier configuration information; and, if the change count value of the first message and the change count value of the second message are different from each other, receiving a third message containing current carrier configuration information and the current change count value from the base station. | 01-10-2013 |
20130010699 | METHOD OF RANDOM ACCESS IN A WIRELESS SYSTEM - A random access method in a wireless communication system is disclosed. The present invention includes transmitting a bandwidth request indicator and a quick access message from a mobile station to a base station and starting a timer having a timer value determined according to an acknowledgement from the base station. | 01-10-2013 |
20130029716 | APPARATUS AND METHOD FOR PERFORMING GROUP-BASED M2M COMMUNICATION - Disclosed are an apparatus and method for performing group-based machine to machine (M2M) communication. According to one embodiment of the present invention, a method in which a plurality of M2M communication devices from a group, and a specific M2M communication device which is a member of the group performs communication with a base station, comprises the following steps: transmitting, to the base station, a first message for requesting network registration; receiving, as a response to the first message, a second message containing information on the representative M2M communication device which is a representative of the group; and transmitting, to the representative M2M communication device, data to be transmitted to the base station on the basis of the second message. | 01-31-2013 |
20130039243 | METHOD AND DEVICE FOR OPERATING IN IDLE MODE - A method and device for operating in an idle mode for Machine To Machine (M2M) communication are provided. A M2M device receives a paging message from a base station. The paging message includes a M2M group identifier that identifies a M2M group to which the M2M device belongs. The M2M device monitors an uplink resource allocation beginning from an offset during a monitoring duration. | 02-14-2013 |
20130039246 | METHOD AND DEVICE FOR ALLOCATING RESOURCES IN WIRELESS COMMUNICATION SYSTEM - A method of allocating resources in a wireless communication system is provided. A wireless device which makes a transition between Low Power Consumption (LPC) mode and active mode receives, from a base station, an allocation message for allocating persistent scheduling resources used in persistent scheduling. The wireless device communicates with the base station using the persistent scheduling resources, for active duration in which the wireless device operates in the active mode. The wireless device deallocates the persistent scheduling resources automatically when the active duration is finished. | 02-14-2013 |
20130039344 | METHOD FOR EFFICIENTLY UPDATING SECONDARY CARRIER INFORMATION IN A BROADBAND WIRELESS ACCESS SYSTEM - The present invention relates to a method for updating secondary carrier information for preemptively allocating secondary carriers during handover and an apparatus for carrying out the method. A method in which a terminal performs handover in a broadband access system that supports multiple carriers according to one embodiment of the present invention comprises: a step in which a target base station receives, from a serving base station, a first message including carrier allocation information on at least one secondary carrier preemptively allocated to the terminal; a step of performing network reentry with the target base station; and judging whether the multi-carrier configuration of the serving base station and the multi-carrier configuration of the target base station are the same, and, if the configurations are different from each other, transmitting, to the target base station, a second message for requesting multi-carrier capability negotiation. | 02-14-2013 |
20130040678 | M2M EQUIPMENT, BASE STATION, AND METHOD FOR PERFORMING SCHEDULING DELAY - Disclosed are M2M equipment and base station capable of adjusting load through a scheduling delay. M2M equipment according to the present invention may comprise a receiver which receives a first message including a scheduling delay indicator directing the M2M equipment to delay transmission of uplink data from a base station, and a processor for controlling transmission of the uplink data to be delayed in response to scheduling delay direction of the first message. | 02-14-2013 |
20130058284 | METHOD AND APPARATUS FOR PERFORMING UPLINK RANGING IN A WIRELESS ACCESS SYSTEM - The present description relates to a method in which a terminal in an idle mode performs network reentry in a wireless access system, wherein the method comprises: a step of receiving, from a base station, control information containing a first parameter and a second parameter for determining a frame in which uplink ranging is to be performed; and a step of performing uplink ranging for network reentry with the base station on the basis of the control information, wherein the first parameter indicates the location of a superframe in which uplink ranging is to be performed, and the second parameter indicates the frame duration in the superframe which is indicated by the first parameter and in which uplink ranging is performed. | 03-07-2013 |
20130058289 | METHOD AND DEVICE FOR PERFORMING RANGING - A method and device for performing a dedicated ranging for Machine To Machine (M2M) communication is provided. A M2M device receives a paging message indicating a dedicated ranging channel allocation from a base station. The dedicated ranging channel allocation is valid within a dedicated channel allocation timer. | 03-07-2013 |
20130070705 | METHOD FOR EFFICIENTLY PERFORMING INITIAL ACCESS IN A MULTI-CARRIER BROADBAND WIRELESS ACCESS SYSTEM - A method for efficiently performing an initial access in an MS in a multi-carrier broadband wireless access system is disclosed. The method includes scanning a plurality of carriers supported by a BS, and selecting one of the scanned carriers as a first carrier and receiving an SFH of the first carrier. The SFH of the first carrier includes at least one of a field indicating load status of the first carrier and recommended network entry carrier information including information about a second carrier in good load status. | 03-21-2013 |
20130083728 | METHOD AND APPARATUS FOR TRANSMITTING PAGING MESSAGE IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for transmitting a paging message in a wireless communication system is provided. A base station receives a paging announcement from a paging controller. The paging announcement includes a machine-to-machine (M2M) group identity (ID) allocated by a first network entity. The base station transmits the paging message to an M2M device. The paging message includes a M2M zone ID of the first M2M zone, managed by the first network entity, allocated by the first network entity or a network entity ID of the first network entity. An M2M group ID allocated to the M2M device by a second network entity is the same as the M2M group ID included in the paging announcement. | 04-04-2013 |
20130102311 | METHOD AND APPARATUS FOR TRANSMITTING PAGING MESSAGE FOR M2M DEVICE IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus of receiving a paging message in a wireless communication system is provided. A machine-to-machine (M2M) device monitors paging messages including a group paging message and an individual paging message, and receives both the group paging message and the individual paging message from a base station (BS). | 04-25-2013 |
20130128767 | METHOD AND APPARATUS FOR TRANSMITTING FEEDBACK INFORMATION IN WIRELESS COMMUNICATION SYSTEM - A method and an apparatus for transmitting feedback of a mobile station (MS) in a wireless communication system supporting a multi-carrier operation are provided. The method includes transmitting feedback information to a base station, and in this case, the feedback information is transmitted through a MAC control message and the feedback information includes carrier information of an activation carrier related to the MAC control message. | 05-23-2013 |
20130148603 | METHOD FOR PERFORMING CARRIER MANAGEMENT PROCEDURE IN A MULTI-CARRIER SUPPORTED WIDEBAND WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR THE SAME - A method and apparatus for performing a carrier management in a broadband wireless communication system supporting multi-carriers are discussed. According to an embodiment, a method for a mobile station to perform a carrier management procedure with a base station supporting multiple carriers, includes receiving, by the mobile station from the base station, an instruction for a primary carrier change; transmitting, by the mobile station to the base station, an acknowledgement message indicating that the instruction is successfully received; and changing, at a specific time, a current primary carrier to one of the multiple carriers within the base station, wherein the specific time is determined based on the instruction. | 06-13-2013 |
20130244652 | METHOD AND APPARATUS FOR DISTRIBUTING RANDOM ACCESS IN A WIRELESS ACCESS SYSTEM - The present description relates to a method in which a terminal performs network reentry procedures in an idle mode in a wireless access system, wherein the method comprises the following steps: receiving, from a base station, control information indicating an initial ranging back-off window size for machine-to-machine (M2M) terminals during a paging listening period; determining an initial ranging back-off window size for initial ranging using the received control information; and performing initial ranging procedures with the base station based on the determined initial ranging back-off window size. | 09-19-2013 |
20130244695 | POSITION UPDATING METHOD AND DEVICE FOR M2M COMMUNICATION - Provided are a position updating method and device for Machine To Machine (M2M) communication. An M2M device transmits a position update capability message including a mobility type and an M2M traffic type to a base station, and receives a position update capability confirmation message including a position update type from the base station. The TC device performs a position update according to the position update type. | 09-19-2013 |
20130250831 | METHOD FOR OPERATION IN IDLE MODE FOR M2M COMMUNICATION, AND DEVICE USING SAME - Provided are an operation method for M2M (machine to machine) communication and a device using same. M2M equipment receives a paging message including a resource offset for indicating an offset for uplink allocation. The M2M equipment transmits a ranging request message using the uplink allocation. | 09-26-2013 |
20130308614 | METHOD AND APPARATUS OF TRANSMITTING AND RECEIVING SYSTEM INFORMATION IN A WIRELESS SYSTEM - A method and apparatus for transmitting and receiving system information in a wireless communication system are disclosed. A method for receiving system information by a mobile station (MS) of a wireless communication system includes receiving a secondary superframe header (S-SFH) change cycle from a base station (BS), and receiving a primary superframe header information element (P-SFH IE) including a first field indicating a change count of a plurality of secondary superframe header subpacket information elements (S-SFH SP IEs) from the base station (BS). Once each of the plurality of S-SFH SP IEs is changed, each of the plurality of S-SFH SP IEs remains unchanged during one or more S-SFH change cycles. | 11-21-2013 |
20130324157 | METHOD AND APPARATUS FOR LOCATION UPDATE IN A WIRELESS COMMUNICATION SYSTEM - Provided are a method and apparatus for location update in a wireless communication system. A machine-to-machine (M2M) device transmits a mobility access classifier indicating the mobility access classification of the M2M device to a first base station, and receives information on a reattachment zone indicating a list of base stations accessible by the M2M device from the first station. The M2M device transits to an idle mode, and provides a location update to a second base station based on whether or not the second M2M device has exited the reattachment zone. | 12-05-2013 |
20130336246 | APPARATUS AND METHOD FOR TRANSMITTING A MAC PDU BASED ON MAC HEADER TYPE INFORMATION - An apparatus and methods for communicating in a wireless access system using a medium access control protocol data unit (MAC PDU), the method including receiving, by a mobile station (MS) from a base station (BS), a dynamic service addition request (AAI_DSA-REQ) message requesting to create a service flow, the AAI_DSA-REQ message including a first MAC header type parameter indicating a type of a MAC header included in the MAC PDU of the service flow and a flow identifier (FID) identifying a connection associated with the service flow; transmitting, by the MS to the BS, a dynamic service addition response (AAI_DSA-RSP) message in response to the AAI_DSA-REQ message, the AAI_DSA-RSP message including a second MAC header type parameter indicating the type of a MAC header included in the MAC PDU of the service flow; and communicating with the BS using the MAC PDU. | 12-19-2013 |
20140003410 | METHOD AND DEVICE FOR RANGING IN A WIRELESS COMMUNICATION SYSTEM | 01-02-2014 |
20140010162 | METHOD AND DEVICE FOR TRANSMITTING INFORMATION FOR CLIENT COOPERATION IN WIRELESS COMMUNICATION SYSTEM - Provided are a method and a device for transmitting information for client cooperation in a wireless communication system. A first device or a base station of the client cooperation determines whether the first device is operable as a cooperative device for the client cooperation, on the basis of a decision factor. The first device transmits information for carrying out the client cooperation to a second device on the basis of whether the first device is operable as the cooperative device for the client cooperation. | 01-09-2014 |
20140016590 | METHOD AND DEVICE FOR ENTERING NETWORK FOR CLIENT COOPERATION IN WIRELESS COMMUNICATION SYSTEM - Provided are a method and a device for entering a network for client cooperation in a wireless communication system. A first device, through a frame of a first system, receives a ranging request message from a second device, and transmits the received ranging request message to a base station. As a response thereto, the first device receives a range response message, which is a response to the ranging request message, from a base station of a second system, and through a frame of the first system, transmits the range response message to the second device. | 01-16-2014 |
20140043966 | METHOD FOR DATA TRAFFIC OFFLOADING AND APPARATUS USING THE SAME - A method for data traffic offloading in a mobile communication system supporting a multi-radio access technology (RAT) and an apparatus using the method is provided. A mobile station receives information on a traffic load of a primary communication system from a base station. The mobile station determines whether to perform offloading to a secondary communication system on the basis of the traffic load of the primary communication system. | 02-13-2014 |
20140044034 | METHOD AND DEVICE FOR M2M COMMUNICATION - Provided are a method and device for M2M (Machine To Machine) communication. A M2M device receives a DSA (dynamic service addition) message from a base station, and the DSA message includes an MGID (M2M Group identifier) related to an M2M multicast service. The M2M device receives a paging advertisement (PAG-ADV) message from the base station in an idle mode, and the PAG-ADV message includes the MGID and an action code directing a location update performance. The M2M device transmits a ranging request (RNG-REQ) from the base station to perform a location update. | 02-13-2014 |
20140050155 | MODE CONVERSION METHOD FOR CLIENT COOPERATION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREOF - Provided are a mode conversion method for client cooperation in a wireless communication system and a device thereof. A first device converts a second system repetitively into an active mode which can receive a signal and a non-active mode which cannot receive the signal based on mode conversion information, and detects at least one second device based on the second system in the active mode. The first device is connected to the base station through the second system and another first system. | 02-20-2014 |
20140056249 | METHOD AND DEVICE FOR PERFORMING RANGING IN A WIRELESS COMMUNICATION SYSTEM - A method and device for performing wireless communication ranging are provided. A machine-to-machine (M2M) device receives a paging message from a base station, transmits a bandwidth request (BR) preamble sequence to the base station, receives a first UL grant to allocate an uplink (UL) resource for the transmission of a BR header, transmits the BR header including a ranging request indication parameter to the base station through a UL resource allocated by the first UL grant, receives a second UL grant to allocated a UL resource for transmission of a ranging request message from the bases station, and transmits the ranging request message to the base station through a UL resource allocated by the second UL grant. | 02-27-2014 |
20140066054 | METHOD AND APPARATUS FOR DETECTING AN ACCESS POINT IN A RADIO ACCESS SYSTEM - The present disclosure relates to a method for performing communication between a terminal and a base station in a radio access system supporting multi-radio access technology (RAT), the method being characterized in that it comprises the steps of performing an access procedure between a first base station supporting a cellular radio access technology and a second base station supporting a short-range radio access technology; the second base station receiving, from the first base station and through a first radio scanner, control information relating to the transmission of an identification signal (IDS) for detecting the second base station of the terminal; and the second base station transmitting the IDS through the first radio channel to the terminal based on the received control information, wherein the first radio channel is the radio channel corresponding to the first base station. | 03-06-2014 |
20140112249 | METHOD AND DEVICE FOR TRANSMITTING DATA THROUGH CLIENT COOPERATION IN WIRELESS COMMUNICATION SYSTEM - Provided are a method and a device for transmitting data through client cooperation in a wireless communication system. A cooperative device of the client cooperation receives uplink (UL) data from a source device through a frame of a first system, and if the UL data is the data to be transmitted to a base station of the second system, transmits the UL data to the second system. In addition, when receiving downlink (DL) data from the base station of the second system, and the DL data is data to be transmitted to the source device, the DL data is transmitted to the source device through the frame of the first system. | 04-24-2014 |
20140113626 | METHOD FOR OPERATING IN IDLE MODE AND M2M APPARATUS - A method for operating in an idle mode and a machine-to-machine (M2M) apparatus are provided. The M2M apparatus receives a deregistration-response (DREG-RSP) message from a base station, and the M2M apparatus in the idle mode monitors a paging advertisement (PAG-ADV) message from the base station. Comprised is a fixed M2M deregistration identifier (FMDID), and the FMDID is a 16-bit identifier for identifying the M2M apparatus in a region of the base station. | 04-24-2014 |
20140141827 | METHOD AND APPARATUS FOR IDLE MODE OPERATION FOR M2M COMMUNICATION - Provided are an operating method for machine to machine (M2M) communication and an apparatus using the method. In an idle mode, an M2M device receives a paging message from a base station. The paging message comprises a network connection type and a start offset. The network connection type indicates a resource allocation for a ranging request. The start offset indicates an offset at which to start monitoring the ranging resource for the ranging request. | 05-22-2014 |
20140148199 | METHOD FOR POSITION UPDATE IN M2M COMMUNICATION, AND APPARATUS USING SAME - Provided are a method for performing a position update in machine to machine (M2M) communication, and an apparatus using the method. In an idle mode, an M2M apparatus receives a paging message from a base station. The paging message comprises an action code, a network access type, and a resource offset. The action code is an indication for the M2M apparatus to perform a position update; the network access type is an indication for the allocation of resources for a ranging request; and the resource offset is an indication for an offset for uplink allocation. The M2M apparatus transmits the ranging request message to the base station by means of the uplink allocation. | 05-29-2014 |
20140206405 | METHOD AND DEVICE FOR POSITION UPDATE FOR M2M WIRELESS COMMUNICATION - Provided are a method and device for performing a position update in machine to machine (M2M) communication. An M2M apparatus in an idle mode receives a paging message from a base station. The paging message comprises an action code and a network access type, the action code being an indication for the M2M apparatus to implement position update. When the network access type indicates the allocation of resources for a ranging request, the M2M apparatus transmits the ranging request to the base station by means of an allocated uplink. | 07-24-2014 |
20140233514 | METHOD FOR PROVIDING AN M2M SERVICE, AND METHOD AND APPARATUS FOR M2M COMMUNICATION - Provided is a method for machine to machine (M2M) communication. An M2M device acquires an M2M group identification (MGID) and an M2M zone identification. The M2M device checks whether or not the M2M device has escaped from the M2M group zone. If the M2M device has escaped from the M2M group zone, the M2M device transmits, to a base station, an update request message which requests that the M2M group identifier be updated. The M2M device receives, from the base station, a response message as a response to the update request message. | 08-21-2014 |
20140269253 | METHOD AND DEVICE FOR ENTERING A NETWORK FOLLOWING AN ABNORMAL POWER DOWN IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and device for maintaining the context of user equipment (UE) in a wireless communication system. If power for a terminal is abnormally down, a base station receives an abnormal power down report and a request for maintaining the context of the terminal from the terminal, determines whether to maintain the context of the terminal, and transmits, to the terminal, an abnormal power down confirmation that indicates whether to maintain the context of the terminal. | 09-18-2014 |
20140269626 | METHOD AND APPARATUS FOR ALLOCATING RESOURCES IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and apparatus for transmitting a bandwidth request (BR) header in a wireless communication system. User equipment transmits a standalone BR header to a base station through a first uplink (UL) resource allocated by a BR-acknowledgement (ACK) A-MAP information element (IE), receives from the base station a hybrid automatic repeat request (HARQ)-non-acknowledgement (NACK) which indicates the base station has not successfully received the standalone BR header, receives a CDMA allocation A-MAP IE from the base station, and retransmits the standalone BR header through a second UL resource allocated by the CDMA allocation A-MAP IE. | 09-18-2014 |
20140310784 | METHOD AND DEVICE FOR AUTHORIZING USER EQUIPMENT IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and device for authorizing user equipment (UE) in a wireless communication system. The present invention also relates to a method and device for authorizing authorized true user equipment if an abnormal power down report is transmitted from a fake user equipment. The real user equipment checks the abnormal power down from a base station, receives an assignment A-MAP 1E, and transmits an authorized message to the base station if power is not abnormally down. Alternatively, user equipment transmits, to the base station, an abnormal power down signaling header that includes authorization parameters, such as COUNTER_TEK or a cipher-based message authentication code (CMAC). | 10-16-2014 |
20140328253 | METHOD FOR DETERMINING VALIDITY OF TERMINAL GROUP IDENTIFIER IN MACHINE-TO-MACHINE COMMUNICATION - Disclosed is a method for determining whether a machine-to-machine group identifier (MGID) for identifying a multicast service flow is supported in a wireless access system that supports machine-to-machine (M2M) communication, wherein the multicast service flow is shared by a group of M2M terminals within an M2M group zone that is allocated to the terminals. The method comprises the steps of: receiving from the first base station M2M group zone information of the first base station and neighboring base stations; receiving from the second base station system information of the second base station; and determining whether the MGID that is received from the first base station is supported by the second base station by comparing the system information of the second base station and the M2M group zone information on the neighboring base stations. | 11-06-2014 |
20140334411 | METHOD FOR EFFICIENTLY PERFORMING INITIAL ACCESS IN A MULTI-CARRIER BROADBAND WIRELESS ACCESS SYSTEM - A method for efficiently performing an initial access in an MS in a multi-carrier broadband wireless access system is disclosed. The method includes scanning a plurality of carriers supported by a BS, and selecting one of the scanned carriers as a first carrier and receiving an SFH of the first carrier. The SFH of the first carrier includes at least one of a field indicating load status of the first carrier and recommended network entry carrier information including information about a second carrier in good load status. | 11-13-2014 |