Patent application number | Description | Published |
20090175247 | METHOD OF SCHEDULING BROADCAST MESSAGES FOR TRANSMITTING SYSTEM INFORMATION - A method for scheduling broadcast messages to transmit system information is disclosed. This method for scheduling broadcast messages having system information classifies a plurality of system information into one or more groups. For example, the system information may be control information for a network entry and initialization of a mobile station, or a burst profile. Then, the scheduling method allocates different numbers of transmission times to the individual groups, and determines transmission start times of system information of the individual groups according to the allocated transmission times. | 07-09-2009 |
20090177937 | METHOD FOR RESOURCE ALLOCATION FOR HYBRID-AUTOMATIC REPEAT REQUEST - A resource allocation method for a HARQ is disclosed. This resource allocation method includes, transmitting an MAP message having specific information indicating whether or not a differential allocation is supported, storing MAP information contained in the MAP message during a predetermined frame, and upon receiving an NACK message during the predetermined frame, transmitting sub-burst information having differential allocation information related to sub-bursts to be retransmitted. If there are a large amount of HARQ traffics, each embodiment of the present invention transmits only differential information on the basis of MAP information of the initial MAP message when HARQ sub-bursts is retransmitted. | 07-09-2009 |
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 |
20090209273 | METHOD OF TRANSMITTING AND RECEIVING A PAGING MESSAGE IN A MOBILE COMMUNICATION SYSTEM - A method of transmitting and receiving a paging message in a mobile communication system is disclosed, by which the power saving effect can be enhanced in a manner of minimizing unnecessary wake-up, decoding and demodulation of a terminal by informing the terminal of a location of a frame to receive before a base station sends a paging message. An embodiment of the present invention comprises transmitting a signal including location information of the paging message for a specific terminal between paging listening intervals to the terminal and transmitting the paging message to the terminal for the paging listening interval. | 08-20-2009 |
20090213812 | METHOD OF SCANNING CELLS BASED ON LBS INFORMATION AND SELECTING HETEROGENEOUS CELLS - A method of scanning cells based on location based service (LBS) information and selecting heterogeneous cells is provided. The method includes, at a mobile station, setting a supplementary field of a registration request message and notifying a base station whether or not handover based on location information is supported, while performing a network entry process, generating location based service (LBS) information while scanning is performed using the coordinates of base stations of an LBS advertisement message received from the base station, if channel quality measured by the mobile station is less than a threshold value, including the generated LBS information in a scanning report message and transmitting the scanning report message to the base station, receiving recommended base station information of the heterogeneous cells selected based on the LBS information from the base station, and performing the scanning on the basis of the recommended base station information. By this configuration, it is possible to reduce a time consumed for the scanning performed by the mobile station and reduce the latency of cell selection/reselection/handover, by reducing the number of target cells which will be scanned by the mobile station on the basis of the LBS information of the mobile station in the scanning process which is performed before the cell selection/reselection/handover between the heterogeneous cells. | 08-27-2009 |
20100035633 | METHOD FOR PERFORMING LOCATION UPDATE OF MOBILE STATION IN IDLE MODE - A method for performing location update in various manners when a mobile station (MS) travels between paging groups in a wireless access system. A method for performing location update of an MS includes steps of transmitting a ranging request message (REG-REQ) including mobility information to a base station, wherein the mobility information represent a mobility of the mobile station; and receiving a ranging response message (RNG-RSP) including paging group information related with new paging group from the base station, wherein the new paging group is assigned based on the mobility information. | 02-11-2010 |
20100061289 | METHOD OF PERFORMING AND SUPPORTING HANDOVER IN BROADBAND WIRELESS ACCESS SYSTEM - A method for performing a handover between MBS zones of a mobile station receiving multicast and broadcast service (MBS) data in a wireless access system is disclosed. The method for performing the handover between first and second MBS zones of the mobile station in a wireless access system includes receiving the MBS from a first base station belonging to the first MBS zone which uses a first MBS zone identifier (ID), requesting the handover between the first and second MBS zones, receiving parameter information including a second MBS zone identifier (ID), from the first base station, and receiving the MBS from a second base station belonging to the second MBS zone, using the parameter information, wherein the second MBS zone uses the second MBS zone identifier (ID) which is needed to receive the MBS. | 03-11-2010 |
20100067698 | METHOD FOR SELECTIVELY ENCRYPTING CONTROL SIGNAL - Various methods and apparatus for encrypting signals in a wireless access system are disclosed. A method for selectively encrypting a management message in an MS includes steps of generating a Medium Access Control Protocol Data Unit (MAC PDU) including the selectively encrypted management message and an Fragmentation Extended Header (FEH) and transmitting the MAC PDU to the BS. The FEH includes indication information indicating whether the management message was encrypted. | 03-18-2010 |
20100093347 | METHOD FOR PERFORMING INITIAL RANGING IN WIRELESS COMMUNICATION SYSTEM - A method of enabling a mobile station to perform initialization to a base station in a wireless communication system is provided. The method includes synchronizing with the base station, obtaining an uplink parameter based on the synchronization, performing initial ranging by using the uplink parameter and establishing security association between the mobile station and the base station while performing the initial ranging. During the initial ranging, a mobile station's unique identifier or control signaling can securely be transmitted. | 04-15-2010 |
20100111015 | Method for transmitting downlink control messages in cellular system - A method for transmitting control messages is disclosed. The method includes grouping a plurality of control messages for at least one user equipment based on at least one criteria of whether or not uplink ACK/NACK channel indexes are allowed to be implicitly used in the control messages, whether or not the user equipment corresponding to the control messages is able to implicitly use the uplink ACK/NACK channel indexes, sizes of Information Elements (IEs) of the control messages, whether or not the control messages are segmented into a predetermined number of subblocks, MCS levels applied to the control messages, sizes of allocated IEs of the control messages after applying the MCS levels, and frequency partitions in which the IEs of the control messages are present, and transmitting the grouped control messages. The control messages included in each of the groups generated by grouping are equal in at said least one criteria. | 05-06-2010 |
20100113032 | METHOD OF HANDOVER AND BASE STATION INFORMATION TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM - A method of handover in a wireless communication system is disclosed. A method of handover of a mobile station in a wireless communication system with femtocells comprises transmitting a control message including at least one among information of first femtocell base station detected through initial scanning and location information of the mobile station to a base station; receiving information of one or more second femtocell base stations to which the mobile station is accessible, wherein the second femtocell base stations are searched based on the control message from the base station; and performing a handover to one of the second femtocell base stations. | 05-06-2010 |
20100120392 | METHOD OF EMERGENCY COMMUNICATION IN MOBILE COMMUNICATION SYSTEM AND MOBILE STATION SUPPORTING THE SAME - The present invention relates to a method and apparatus for requesting a base station of emergency call connection within the shortest time regardless of location or channel status of a mobile station in a mobile communication system. When the mobile station requests an uplink to connect emergency call, the base station establishes a communication path of mobile station-relay station-base station if signal quality of the mobile station is not better than signal quality transmitted through the relay station, whereby ranging or transmission of emergency data is prevented from being repeated under poor channel status, so as to enable a prompt emergency rescue service. | 05-13-2010 |
20100165908 | METHOD FOR RECEIVING AND PROVIDING MULTICAST BROADCASTING SERVICE - A method for adaptively receiving and providing a multicast broadcasting service (MBS) according to at least one of capability and a channel status of a mobile station (MS) is disclosed. In more detail, a base station provides the MBS to MSs using different layers according to the capabilities and/or the channel statuses of the MSs, and the MSs adaptively receive the MBS according to the respective capabilities and/or the channel statuses of the MSs. | 07-01-2010 |
20100172325 | METHOD FOR PERFORMING ZONE SWITCHING IN BROADBAND WIRELESS ACCESS SYSTEM - A device, system and method for performing zone switch based handover in a legacy serving base station by an advanced mobile station (AMS), the method including receiving a ranging response (RNG-RSP) message including a zone switching TLV parameter necessary to perform zone switching to an advanced mobile station support zone (MZone) from a legacy zone (LZone) of a target advanced base station (ABS), and requesting a bandwidth for transmitting an advanced air interface ranging request (AAI_RNG-REQ) message to the MZone using the zone switching TLV parameter. | 07-08-2010 |
20100177831 | METHOD FOR RECEIVING SYSTEM INFORMATION - A method for a mobile station (MS) to acquire system information of other communication systems via an initial entry communication system in which the mobile station (MS) initially enters via a base station (BS) is disclosed. The BS can deliver system information using a message transmitted to the MS at each frame or at intervals of a periodic time. In other words, the BS delivers specific information indicating whether the system is supported or not in a message. If the system is supported, the BS transmits a message including the system information to the MS. During or after the initial entry, the BS may deliver the system information using messages communicated with the MS. Namely, the BS can voluntarily or on the MS′ demand transmit a message including the system information to the MS indicating whether the system is supported. | 07-15-2010 |
20100180111 | METHOD OF ESTABLISHING FAST SECURITY ASSOCIATION FOR HANDOVER BETWEEN HETEROGENEOUS RADIO ACCESS NETWORKS - A method of establishing security association between heterogeneous networks is disclosed. The method comprises a first step of receiving information of heterogeneous networks near a mobile station; a second step of transmitting a request message requesting authentication related information transfer to a target heterogeneous network where the mobile station intends to perform handover, among the heterogeneous networks near the mobile station; and a third step of receiving authentication related information and key related information of the target heterogeneous network. At this time, the first step, the second step, and the third step are preferable performed before handover is performed between heterogeneous networks. | 07-15-2010 |
20100202378 | METHOD OF EMERGENCY SERVICE REQUEST USING CONTROL CHANNEL - A method for performing emergency communication between a mobile station and a base station in a wireless communication system is disclosed. The method includes receiving allocation of a contention-free-based control channel from a base station, and transmitting an emergency service request message through the contention-free-based control channel. The contention-free-based control channel may be one of a channel quality indicator (CQI) channel and an acknowledgement/negative-acknowledgement (ACK/NACK) channel. Since the emergency service request message can be transmitted through a contention-free dedicated code and a dedicated region, a procedure is simplified and power resources of the mobile station can be saved. | 08-12-2010 |
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 |
20100226290 | METHOD FOR COMMUNICATING DATA BETWEEN MOBILE STATION AND BASE STATION, AND MOBILE COMMUNICATION TERMINAL THEREOF - A method for transmitting and receiving data by a mobile station (MS), a method for transmitting and receiving data by a base station (BS), and a mobile communication terminal are provided. The method for transmitting and receiving data by an MS includes generating an uplink subframe by placing an uplink control channel so as to have a margin with a time allocated to a MAP of a downlink subframe and transmitting the uplink subframe to a BS. A new frame structure compatible with a full duplex FDD MS is applied in a mobile communication system. | 09-09-2010 |
20100254336 | METHOD FOR NETWORK ENTRY IN A WIRELESS COMMUNICATION SYSTEM - A method for network entry in a wireless communication system is disclosed. The method includes receiving an Advanced Air Interface Ranging Response (AAI_RNG-RSP) message including an unsolicited bandwidth indicator from a Base Station (BS), the unsolicited bandwidth indicator indicating that the BS will allocate an uplink bandwidth to the MS, for transmission of a Medium Access Control (MAC) message, without solicitation from the MS, and monitoring an Advanced MAP Information Element (A-A-MAP IE) for a predefined time after the reception of the AAI_RNG-REQ message. | 10-07-2010 |
20100260095 | METHOD OF CONTROLLING FEEDBACK CHANNEL IN COMMUNICATION SYSTEM COMPRISING AT LEAST ONE RELAY STATION - A method for controlling a feedback channel in a communication system including a relay station (RS) is disclosed. In a method for controlling transmission/reception of a channel quality information feedback in a wireless communication system including a relay station (RS), the RS receives total channel quality information from a mobile station (MS), transmits the channel quality information to a base station (BS), receives a delta CQI from the mobile station (MS), and transmits the delta CQI to the base station (BS) according to control information. | 10-14-2010 |
20100260142 | METHOD FOR PERFORMING UNCONTROLLED HANDOVER - A device, system and method for performing an uncontrolled handover in a mobile station, a ranging request message including an identifier of a serving base station and a first identifier used in the serving base station is transmitted to a first target base station to perform network (re)entry to the first target base station, and a ranging response message including security information and a second identifier for identifying the mobile station is received from the first target base station. | 10-14-2010 |
20100296426 | METHOD OF DCR OPERATION IN A BROADBAND WIRELESS COMMUNICATION SYSTEM - The present invention relates to a broadband wireless access system, and more particularly, to a method for a mobile station to save power for prescribed duration without performing a paging procedure and apparatus therefor. According to one embodiment of the invention, a method of operating a DCR (deregistration with content retention) mode of a mobile station in a broadband wireless access system includes the steps of transmitting a registration request (AAI_REG-REQ) message to a base station and receiving a registration response (AAI_REG-RSP) message including an identifier for identifying the mobile station in association with connection information (AMS context) of the mobile station in a network including a base station from the base station. | 11-25-2010 |
20100304777 | METHOD OF DCR OPERATION IN A BROADBAND WIRELESS COMMUNICATION SYSTEM - The present invention relates to a broadband wireless access system, and more particularly, to a method for a mobile station to save power for prescribed duration without performing a paging procedure and apparatus therefor. According to one embodiment of the present invention, a method of a DCR (deregistration with content retention) mode operation of a mobile station in a broadband wireless access system includes transmitting a first message including a first code indicating an entry request at the DCR mode to a base station, receiving a second message including a second code indicating whether to allow the entry request from the base station, and if the second code is set to a value indicating an allowance of the entry request, operating in the DCR mode while a preset timer is valid. | 12-02-2010 |
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 |
20110009158 | METHOD OF EXECUTING HANDOVER IN A MOBILE COMMUNICATION SYSTEM - Disclosed are methods of executing a handover related operation in a power saving mode in accordance with handover triggering information. One of the methods of executing handover of a mobile station in a mobile communication system comprises determining an enabled status of at least one handover related operation in a specific operation mode between the mobile station (MS) and a network, receiving control information related to the at least one handover related operation from the net work, entering the specific operation mode, changing the enabled status of the at least one handover related operation in the specific operation mode, and performing the enabled handover related operation in accordance with the changed enabled status and the control information. | 01-13-2011 |
20110013573 | METHOD FOR REQUESTING BANDWIDTH IN A WIRELESS ACCESS SYSTEM - A method for requesting a bandwidth in a wireless access system is disclosed. In the method for requesting a bandwidth in a wireless access system, when a base station receives an uplink MAC PDU from a mobile station, if there is a polling request field in a generic MAC header, the base station allocates a bandwidth, which can transmit a BR header, to the mobile station. Then, the mobile station transmits a BR header to a region allocated from the base station so as to be allocated with a resource for transmitting data from the base station and to transmit data to the region. | 01-20-2011 |
20110013596 | METHOD FOR PERFORMING HANDOVER TO REDUCE INTERRUPTION TIME - A method for performing handover to reduce an interruption time is disclosed. A method for performing handover using a variable uplink grant time comprises transmitting a handover request message to a base station, receiving a handover response message from the base station, the handover response message including an uplink grant time, and receiving an uplink grant from the base station if the uplink grant time comes, and transmitting a handover indication message to the base station. Thus, an unnecessary interruption time during hard handover can be reduced by efficiently improving use of an action time, and an action suitable for a frame structure of the IEEE 802.16m can be performed. | 01-20-2011 |
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 |
20110032897 | METHOD OF ALLOCATING ACKNOWLEDGEMENT CHANNEL - Various methods for efficiently transmitting data and various methods for allocating an ACK channel in a wireless access system are disclosed. In addition, various frame structures and MAC header structures for use in allocating an ACK channel are disclosed. A method for allocating an ACK channel includes receiving first data including ACK channel position information, transmitting an ACK signal on an ACK channel indicated by the ACK channel position information, and starting an ACK channel timer. | 02-10-2011 |
20110039563 | METHOD OF ALLOCATING CID FOR FAST HANDOVER - A handover performing method and a method of allocating a connection identifier (CID) at the time of handover are disclosed. The method includes transmitting a handover request message to a serving base station, and receiving a handover response message including CID update information used in a target base station from the serving base station. At this time, the CID update information may include a transport CID (TCID) allocation start position and a TCID allocable value used in the target base station. Accordingly, it is possible to minimize service delay of a mobile station by providing a method of updating the CID of the mobile station for performing fast handover. | 02-17-2011 |
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 |
20110051826 | Method for efficiently performing MULTI-BS MIMO operation in a broadband wireless access system - A method for determining temporary Base Station (BS) Identifiers (IDs) to efficiently set a multi-BS Multiple Input Multiple Output (MIMO) transmission mode and an apparatus for implementing the same in a broadband wireless access system are disclosed. To perform a multi-BS MIMO operation, a Mobile Station (MS) receives a first broadcast message including system information about a plurality of neighbor BSs from a serving BS, receives a second broadcast message including BS set information from the serving BS, the BS set information specifying indexes of one or more neighbor BSs which can be involved in the multi-BS MIMO operation among the plurality of neighbor BSs, and determines a temporary BS ID of each BS included in the BS set information using the specified indexes. | 03-03-2011 |
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 |
20110116446 | METHOD FOR SUPPORTING COEXISTENCE WITH WIRELESS LOCAL AREA NETWORK - A method for supporting coexistence with a wireless personal area network (WPAN) is provided. A method for supporting coexistence with a WPAN in a mobile station which periodically receives a beacon signal for local wireless communication includes, at the mobile station, calculating the numbers of uplink frames which overlap with the beacon signal, configuring a bitmap using the calculated frame numbers, and transmitting coexistence information including the bitmap to a base station. Accordingly, when a broadband wireless access system and WiMedia or ZigBee are simultaneously used, a beacon signal of WiMedia or ZigBee can be efficiently protected from the interruption of the broadband wireless access system and thus WiMedia or ZigBee can be normally operated. | 05-19-2011 |
20110128934 | METHOD AND APPARATUS FOR SUPPORTING CO-LOCATED COEXISTENCE MODE - A method and apparatus for reducing interference between systems when a plurality of wireless access systems are co-located are disclosed. To support CLC mode, an MS in the CRC mode transmits a handover request message to a first Base Station (BS) to initiate a handover process, receives a handover command message acknowledging the handover request message from the first BS, transmits a ranging request message to second BS at network reentry after handover, and receives from the second BS a ranging response message including CRC start time information that set by the second BS. | 06-02-2011 |
20110154029 | METHOD OF ENCRYPTING CONTROL SIGNALING - A method of protecting control signaling transceived between a mobile station and a base station in a wireless access system is disclosed. And, a method of encrypting control signals selectively is disclosed. The present invention defines new control signal encryption key (CSEK) and group control signal encryption key (GCSEK) for encrypting a control signal and discloses methods of protecting a control signal using the control signal encryption keys. Moreover, although the new control signal encryption key and the like are not used, the present invention efficiently protects control signaling by selectively encrypting control signals. | 06-23-2011 |
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 |
20110194420 | METHOD FOR EFFICIENTLY PERFORMING COVERAGE LOSS OPERATION DURING SLEEP MODE IN A BROADBAND WIRELESS ACCESS SYSTEM - A method for detecting coverage loss during a sleep mode of a mobile station and an apparatus for performing the same are disclosed. The method for detecting coverage loss of a mobile station, which is operated in a sleep mode, in a broadband wireless access system comprises the steps of awaking regardless of a sleep window of a sleep cycle at a first time when a super frame header (SFH) is transmitted from a serving base station; detecting the super frame header; and operating for the sleep window or listening window in accordance with the sleep cycle if the detected result is successful, and awaking until the super frame header is successfully detected if the detected result is failed. | 08-11-2011 |
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 |
20110201354 | LOCATION UPDATE METHOD AND MOBILE STATION USING THE SAME - A location update method and a mobile station using the same are disclosed. The location method includes receiving a message including femto Base Station (BS) list information from a macro base station, receiving a preamble including an IDentifier (ID) of a first femto BS from the first femto BS during a predetermined interval, and updating a location to the first femto BS, if the ID of the femto BS is identical to one of IDs included in the femto BS list information. The femto BS list information may include IDs of one or more femto BSs included in the macro BS. | 08-18-2011 |
20110223905 | METHOD FOR DETECTING COVERAGE LOSS IN BROADBAND WIRELESS ACCESS SYSTEM - A method for detecting coverage loss in a broadband wireless access system is disclosed, which recognizes a connection state between a mobile station (MS) and a base station (BS), and provides a method and apparatus for quickly performing network re-entry when the MS moves out of a coverage area of the BS. A method for allowing a base station to perform coverage loss detection of a mobile station in a broadband wireless access system includes unsolicitedly transmitting a first message wherein a bit for requesting ranging execution is set, to the mobile station, and upon receiving a second message for confirming the ranging from the mobile station prior to expiration of a first timer that begins to operate when the first message is transmitted, restarting operating a second timer established for the mobile station. | 09-15-2011 |
20110274069 | METHOD FOR ALLOCATING RESOURCES FOR TRANSMISSION OF BANDWIDTH REQUEST INFORMATION AND METHOD FOR TRANSMITTING THE BANDWIDTH REQUEST INFORMATION IN A WIRELESS COMMUNICATION SYSTEM - A method for allocating resources for transmission of Bandwidth Request (BR) information and a method for transmitting the BR information in a wireless communication system are disclosed. The BR information transmission method includes transmitting a BR code in a first region of a subframe to a Base Station (BS) to attempt a random access, and transmitting BR information in a second region of the subframe to the BS to request resource allocation. | 11-10-2011 |
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 |
20110317638 | METHOD FOR REQUESTING AND ALLOCATING UPLINK RESOURCE IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method for requesting an uplink resource in a wireless communication system. In the method according to one aspect of the invention, a terminal transmits a quick access message to a base station and receives a resource from the base station. The quick access message includes a first field that shows the attributes of the data that is supposed to be transmitted by the terminal, and a field that is determined by the first field. | 12-29-2011 |
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 |
20120014245 | METHOD OF TRANSMITTING MESSAGE RELIABLY IN POWER SAVING CLASS MODE - Various methods and apparatuses for reliably transmitting or receiving messages and data in a Power Saving Class (PSC) mode, which are applicable to a wireless access system, are disclosed. In addition, various methods and apparatuses for retransmitting a management message (e.g., a control message) in the PSC mode are disclosed. Accordingly, the messages and data can be transmitted using a Hybrid Automatic Repeat reQuest (HARQ) scheme. | 01-19-2012 |
20120028645 | COMMUNICATION TECHNIQUE USING CHANGE OF TYPE OF FEMTO BASE STATION - Disclosed is a communication technique using the change of type of a femto base station. The femto base station is able to change the type of CSG opening/closing depending on conditions, and broadcasts the information on the change. A terminal is able to determine the network entry/handover to a corresponding femto cell by using the broadcasted information. The change of cell type of a CSG femto cell can be used when interference adjustment is required depending on the resource conditions of a femto cell. | 02-02-2012 |
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 |
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 |
20120106421 | METHOD FOR SUPPORTING COEXISTENCE CONSIDERING WHILE SUBCHANNEL ALLOCATION IN A BROADBAND WIRELESS ACCESS SYSTEM - A method for supporting coexistence in a mobile station configured for supporting a coexistence mode of a primary wireless communication system and a secondary wireless communication system. The method comprises transmitting to a base station, via the mobile station, a registration request (REG-REQ) message comprising coexistence capability information, receiving a registration response (REG-RSP) message comprising information about support of the coexistence mode in response to the REG-REQ message, and transmitting to the base station, via the mobile station, a sleep mode request (MOB_SLP-REQ) message comprising first coexistence information for requesting a band adaptive modulation and coding (AMC) for adjacent subcarrier permutation. | 05-03-2012 |
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 |
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 |
20120165021 | EFFICIENT HANDOVER EXECUTION METHOD OF TERMINAL IN BROADBAND WIRELESS ACCESS SYSTEM INCLUDING MULTIPLE FEMTO BASE STATIONS - The present invention relates to methods for performing fast handover by a terminal in an environment in which multiple femto base stations exist. A method for performing handover by a terminal includes transmitting, to a serving femto base station, a message for requesting seamless handover within a group including multiple femto base stations, the serving femto base station belonging to the group; receiving, from the serving femto base station, first command message including power information and allocation information; broadcasting an uplink signal that is applied with transmission power indicated by the power information, through an uplink resource indicated by the allocation information; receiving second command messages including measurements of the uplink signal measured by the multiple femto base stations from the serving femto base stations; and performing network re-entry to a target base station among the femto base stations. | 06-28-2012 |
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 |
20120172001 | METHOD OF SUPPORTING LOCATION PRIVACY - A method of supporting location privacy of a mobile station includes receiving, from a base station, a temporary station identifier (TSTID) during an initial ranging procedure; transmitting a registration request (REG-REQ) message requesting a registration to the base station, the REG-REQ message including a real medium access control (MAC) address of the mobile station; and receiving, from the base station, a registration response (REG-RSP) message including a station identifier (STID) assigned to the mobile station. The TSTID is temporarily used to protect a mapping between the real MAC address of the mobile station and the STID, and the TSTID is used until the STID is assigned to the mobile station. | 07-05-2012 |
20120172002 | METHOD OF SUPPORTING LOCATION PRIVACY - A method of supporting location privacy of a mobile station includes receiving, from a base station, a message including a temporary station identifier (TSTID) during an initial ranging procedure, wherein the TSTID is temporarily used to protect the location privacy of the mobile station; performing, with the base station, a basic capabilities negotiation procedure after the initial ranging procedure; performing, with the base station, an authentication procedure after the basic capabilities negotiation procedure; performing, with the base station, a registration procedure after the authentication procedure; and releasing the TSTID after receiving a station identifier (STID) which is assigned during the registration procedure, wherein the STID uniquely identifies the mobile station in the base station. | 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 |
20120201225 | METHOD OF PERFORMING HANDOVER IN A BROADBAND WIRELESS ACCESS SYSTEM - A method for performing effective handover (HO) in a broadband wireless access system is disclosed. The method for controlling a mobile station (MS) to perform handover in a broadband wireless access system includes receiving a first message including at least one of first index information and second index information from a serving base station (SBS), wherein the first index information indicates a subframe to which an additional ranging opportunity for the mobile station (MS) is allocated from a target base station (TBS) and the second index information indicates a frame to which the additional ranging opportunity is allocated, and transmitting a ranging code to the target base station (TBS) through the additional ranging opportunity indicated by the first index information and the second index information. | 08-09-2012 |
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 |
20120269169 | METHOD FOR PERFORMING ZONE SWITCHING IN BROADBAND WIRELESS ACCESS SYSTEM - A method and mobile stations for performing a zone switch, are discussed. According to an embodiment, the method includes: receiving, at the mobile station and from a target base station configured to operate in accordance with a first and a second protocol, a ranging response message of the first protocol including zone switch parameters used to perform zone switch from a first zone of the target base station corresponding to the first protocol to a second zone of the target base station corresponding to the second protocol; and performing, at the mobile station, the zone switch from the first zone to the second zone using the zone switch parameters | 10-25-2012 |
20120287884 | METHOD FOR RECEIVING INFORMATION ON PERIPHERAL LEGACY BASE STATION IN TERMINAL OF LEGACY SUPPORT MODE - The present invention relates to a broadband wireless access system, and more particularly, to a method for an advanced mobile station to efficiently obtain information on a peripheral legacy base station in a mobile communication system in which a legacy system and an advanced system coexist. According to one embodiment of the present invention, the present invention provides a method for a mobile station to receive information on a peripheral base station from a serving base station that operates in a mixed mode in the mobile communication system in which the legacy system and the advanced system coexist, and the method comprises the steps of: receiving a second message that includes first time information for indicating a time when a first message is broadcasted, in a first region for the legacy system of the serving base station through a second region for the advanced system of the serving base station, and receiving the first message from the first region by using the first time information. | 11-15-2012 |
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 |
20120294218 | METHOD OF DCR OPERATION IN A BROADBAND WIRELESS COMMUNICATION SYSTEM - The present invention relates to a broadband wireless access system, and more particularly, to a method for a mobile station to save power for prescribed duration without performing a paging procedure and apparatus therefor. According to one embodiment of the invention, a method of operating a DCR (deregistration with content retention) mode of a mobile station in a broadband wireless access system includes the steps of transmitting a registration request (AAI_REG-REQ) message to a base station and receiving a registration response (AAI_REG-RSP) message including an identifier for identifying the mobile station in association with connection information (AMS context) of the mobile station in a network including a base station from the base station. | 11-22-2012 |
20120294285 | METHOD FOR PERFORMING UNCONTROLLED HANDOVER - A device, system and method for performing an uncontrolled handover in a mobile station, a ranging request message including an identifier of a serving base station and a first identifier used in the serving base station is transmitted to a first target base station to perform network (re)entry to the first target base station, and a ranging response message including security information and a second identifier for identifying the mobile station is received from the first target base station. | 11-22-2012 |
20120314638 | METHOD AND APPARATUS OF OPERATING IN IDLE MODE IN WIRELESS COMMUNICATION SYSTEM - A method of monitoring a paging message in a wireless communication system, which is performed by a mobile station operating in an idle mode including a paging listening interval and a paging unavailable interval, includes receiving a segment of the paging message comprising a plurality of segments during the paging listening interval, the received segment of the paging message including an extension flag indicating whether a remaining segment of the paging message exists; monitoring at least one subsequent subframe or frame to receive the remaining segment of the paging message while the mobile station remains awake if the extension flag indicates that the remaining segment of the paging message exists; and entering the paging unavailable interval if the mobile station is not paged after receiving all segments of the paging message. | 12-13-2012 |
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 |
20120322491 | METHOD FOR PERFORMING DEREGISTRATION WITH CONTENT RETENTION MODE IN BROADBAND WIRELESS ACCESS SYSTEM - The present invention relates to a broadband wireless access system, and more specifically, to a deregistration with content retention mode operation procedure initiated by a base station. According to one embodiment of the present invention, the present invention provides a method for, a mobile station, performing a deregistration with content retention (DCR) mode by a request of a base station in a broadband wireless access system, and the method comprises the steps of: receiving a first broadcast message for indicating entry into the DCR mode from the base station; transmitting a second message for requesting the entry into the DCR mode to the base station; receiving a third broadcast message that includes acknowledgement (ACK) information for indicating whether the second message is detected, and entering the DCR mode if the ACK information indicates a successful detection of the second message. | 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 |
20130010762 | ZONE SWITCHING METHOD IN A BROADBAND WIRELESS ACCESS SYSTEM HAVING REGARD TO SECURITY ASSOCIATION AND DEVICE FOR SAME - The present invention relates to a wireless access system, and more particularly, to a method for supporting security during a handover performance through a zone switch and to a device performing same. According to one embodiment of the present invention, switching a zone by a terminal in a broadband wireless access system comprises the following steps: creating at least one service flow in a first zone that supports the legacy mode of a base station; receiving at the base station a first message, which indicates a zone switch to a second zone that supports an advanced mode; and performing the zone switch, wherein performing the zone switch may further comprise a step for receiving from the second zone a second message, which includes security association information that indicates the security association applied to at least one service flow in the second zone. | 01-10-2013 |
20130039242 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING SYSTEM INFORMATION UPDATE CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and apparatus for transmitting and receiving system information update control information in a sleep mode in a wireless communication system. According to one aspect of the present invention, a method in which a terminal in a sleep mode receives system information update control information in a wireless communication system comprises: receiving, by the terminal from a base station, system information update control information including information on whether or not each of a plurality of secondary super frame header subpacket information elements (hereinafter, referred to as “S-SFH SP IEs”) is changed during a listening window; and receiving a changed S-SFH SP IE using the system information update control information. | 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 |
20130051338 | METHOD AND APPARATUS FOR TRANSMITTING UPLINK DATA ASSOCIATED WITH MTC DEVICE TRIGGER FUNCTION - A method and apparatus for small packet transmission in response to machine type communication (MTC) device trigger indication are provided. For uplink (UL) transmission of small packet from MTC device in idle state, a tracking area update (TAU) complete non-access stratum (NAS) message is used to protect integrity and confidentiality of UL small packet transmission without attach/service request procedure during idle state. For downlink (DL) transmission of small packet from MTC device in idle state, a TAU accept NAS message is used to protect integrity & confidentiality of DL small packet reception without attach/service request procedure during idle state. | 02-28-2013 |
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 |
20130107812 | METHOD AND APPARATUS FOR SUPPORTING CO-LOCATED COEXISTENCE MODE | 05-02-2013 |
20130109388 | METHOD FOR PERFORMING A HANDOVER THROUGH ZONE-SWITCHING IN A BROADBAND WIRELESS ACCESS SYSTEM | 05-02-2013 |
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 |
20130231134 | METHOD FOR UPDATING LOCATION IN A WIRELESS COMMUNICATION SYSTEM - A method for updating a location in a wireless communication system is disclosed. The method includes transmitting a request message to enter idle mode, receiving a response message including an Identifier (ID) of a first paging group and an ID of a second paging group in response to the request message, activating a paging group location update timer, when the MS leaves an area of the first paging group, and updating a location according to the paging group location update timer. | 09-05-2013 |
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 |
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 |
20130337832 | METHOD AND MOBILE DEVICE FOR TRANSMITTING AND RECEIVING PAGING MESSAGES - A method of, and a mobile device for, performing idle mode operation carried out by a mobile station. The method includes receiving a first paging information of a first paging group and a second paging information of a second paging group from at least one base station; entering an idle mode at a first coverage belonging to the first paging group and starting a first timer for a periodic location update; determining a paging group of a currently preferred base station; starting a second timer, if the paging group of the currently preferred base station is determined to be the second paging group; and performing a location update when the second timer expires. | 12-19-2013 |
20140004858 | METHOD FOR PAGING IN WIRELESS ACCESS SYSTEM | 01-02-2014 |
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 |
20140066071 | METHOD IN WHICH A MOBILE STATION RECEIVES INFORMATION ON A PERIPHERAL LEGACY BASE STATION IN A LEGACY SUPPORT MODE - The present invention relates to a broadband wireless access system, and more particularly, to a method and an apparatus for acquiring system information in a mobile communication system in which a legacy system and an advanced system coexist. A method of receiving system information on a peripheral base station in a mobile communication system includes receiving a second message containing time information for receiving, through a second region of a serving base station, a first message broadcasted through a first region of the serving base station and receiving the first message through the first region of the serving base station using the time information, the first message containing system information on neighbor legacy base stations and/or on the first region of neighbor advanced base stations which operate in a mixed mode. | 03-06-2014 |
20140093082 | TRAFFIC ENCRYPTION KEY MANAGEMENT FOR MACHINE TO MACHINE MULTICAST GROUP - A method for updating a group traffic key used for encrypting and decrypting multicast data in a wireless communication system is described. The method includes receiving, from the base station, a first message comprising a new group security seed; and updating the group traffic key based on the new group security seed. | 04-03-2014 |
20140204855 | METHOD OF TRANSMITTING FEEDBACK MESSAGE IN WIRELESS COMMUNICATION SYSTEM - A method of transmitting a feedback message in wireless communication system is provided. The method includes selecting N best subbands of M subbands according to CQI, where both M and N are a natural number and M is larger than N, generating multiple input multiple output (MIMO) information comprising N codebook indexes and N differential CQIs and transmitting the feedback message comprising the MIMO information. | 07-24-2014 |
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 |