Patent application number | Description | Published |
20090080397 | METHOD OF ALLOCATING RESOURCE REGION TO REDUCE MAP OVERHEAD - A method of allocating a radio resource in a wireless access system is disclosed. The method includes receiving a control message associated with radio resource allocation for transmitting uplink data to the base station, wherein the control message comprises a first persistent uplink allocation information element comprising first resource allocation information associated with a first resource allocation region for transmitting the uplink data of a mobile station and transmitting an acknowledgment (ACK) message from the mobile station to the base station in response to successfully receiving the first persistent uplink allocation information element. | 03-26-2009 |
20090213773 | METHOD FOR SUPPORTING COEXISTENCE CONSIDERING WHILE SUBCHANNEL ALLOCATION IN A BROADBAND WIRELESS ACCESS SYSTEM - A method for supporting coexistence in a mobile station for supporting a coexistence mode of WiMAX and secondary wireless communication system while considering subchannel allocation, the method comprises, requesting a band adaptive modulation and coding (AMC) for adjacent subcarrier permutation to a base station by transmitting first coexistence information, after the secondary wireless communication is turned on, and requesting a release of the adjacent subcarrier permutation to the base station by transmitting second coexistence information, if the secondary wireless communication system is turned off. Accordingly, it is possible to provide simultaneity of different wireless communications when a sleep mode is used and improve simultaneity of different wireless communications even when the sleep mode is not used. | 08-27-2009 |
20090213804 | METHOD FOR SUPPORTING COEXISTENCE IN A MOBILE STATION - A method for supporting coexistence in a mobile station is provided. The method for supporting coexistence in the mobile station includes, at the mobile station, turning on Bluetooth at a start point of a WiMAX downlink subframe, stopping the operation of the Bluetooth if WiMAX channel quality of the mobile station becomes less than a threshold value during the operation of the Bluetooth, and, at the mobile station, turning off the operation of the Bluetooth at the start point of a WiMAX uplink subframe. Accordingly, it is possible to solve fragmentation by minimizing the interruption of the WiMAX transmission/reception and to improve WiMAX downlink throughput by restricting Bluetooth data transmission/reception according to the WiMAX channel quality. | 08-27-2009 |
20090280848 | METHOD FOR PAGING IN WIRELESS ACCESS SYSTEM - A method for paging in a wireless access system is disclosed. A method for paging a mobile station of an idle mode comprises allocating large paging group identifier and small paging group identifier of a paging group to which the mobile station belongs to a header; allocating a large paging group flag and a small paging group flag to the header, the large paging group flag and the small paging group flag indicating the presence of a paging message for the mobile station; and transmitting the header to the mobile station of the idle mode. | 11-12-2009 |
20090298504 | METHOD FOR ACQUIRING INFORMATION FOR MEDIA INDEPENDENT HANDOVER - This document is related to a method for acquiring information for media independent handover. More specifically the method comprises: submitting a media independent handover (MIH) query to a base station (BS) by sending a first request message, and receiving a response to the MIH query. Because the first request message is used for authorization, preferably the PKM message, the MS can acquire information for handover between heterogeneous networks before the MS finishes the network entry. | 12-03-2009 |
20090307496 | METHOD OF DERIVING AND UPDATING TRAFFIC ENCRYPTION KEY - A method for efficiently deriving a traffic encryption key for data encryption is disclosed. A method of generating a traffic encryption key (TEK) comprises the steps of receiving, by a mobile station from base station, a first nonce and first security materials for deriving the traffic encryption key (TEK) and deriving the traffic encryption key (TEK) using one or more of the first nonce, the authentication key (AK), and the first security materials. | 12-10-2009 |
20100004002 | METHOD OF PROVIDING LOCATION PRIVACY - A method of providing location privacy of a mobile station in a wireless access system is disclosed. The method of providing location privacy of a mobile station comprises the steps of transmitting a deregistration request message to a serving base station, the deregistration message requesting entry to an idle mode; and receiving a deregistration command message from the serving base station, the deregistration command message including a temporary identifier allocated to the mobile station. In this case, the temporary identifier is an identifier for uniquely identifying the mobile station from a paging group to which the serving base station belongs. | 01-07-2010 |
20100015951 | METHOD OF SUPPORTING LOCATION PRIVACY - A method of protecting location privacy of a mobile station when the mobile station enters a network is disclosed. A method of supporting location privacy comprises the steps of transmitting a ranging code for performing initial ranging; and receiving a message including temporary station identifier after transmitting a ranging request message including MAC address of a mobile station. In this case, the temporary station identifier is used to provide security of a media access control (MAC) address or mapping information of the MAC address and station identifier, wherein the MAC address is to identify a mobile station within a base station. | 01-21-2010 |
20100041399 | METHOD OF PERFORMING RANGING IN A BROADBAND WIRELESS ACCESS SYSTEM - A method of performing ranging in a broadband wireless access system is disclosed. A method of performing ranging of a mobile station which is in an idle mode in a broadband wireless access system includes requesting ranging by transmitting a third ranging code to a network through a first ranging region allocated by the network to transmit a first ranging code or a second ranging code, and receiving a first ranging response message from the network, the first ranging response message including uplink transmission parameters. | 02-18-2010 |
20100062725 | METHOD OF TRANSMITTING AND RECEIVING A MESSAGE ASSOCIATED WITH POWER SAVING MODE IN A WIRELESS COMMUNICATION SYSTEM - Disclosed is a sleep mode in a broadband wireless access system, more particularly a method of transmitting and receiving a message associated with a sleep mode in a broadband wireless access system. The method of transmitting a message associated with a sleep mode in a broadband wireless access system includes transmitting a first message which includes a flag if a receiving side receives the first message associated with the sleep mode, the flag indicating that the receiving side transmits an acknowledgement signal to a transmitting side, and receiving the acknowledgement signal from the receiving side which has received the first message. | 03-11-2010 |
20100067467 | 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. | 03-18-2010 |
20100118741 | METHOD OF EMERGENCY COMMUNICATION IN BROADBAND RADIO ACCESS SYSTEM - A method of emergency communication between a mobile station and a base station in a broadband radio access system and a mobile station which supports the method of emergency communication are disclosed. The method of emergency communication is divided into a case where the mobile station requests an emergency service in a state that the mobile station is registered with the base station and a case where the mobile station requests an emergency service in a state that the mobile is not registered with the base station. In case of the one case, the mobile station requests the base station of an emergency service using a newly defined emergency code or a conventional bandwidth request code and negotiates a basic function required for an emergency service with the base station through predetermined header data. In case of the other case, the mobile station starts initial ranging using a newly defined emergency code or a conventional initial ranging code and negotiates a basic function required for an emergency service through a subscriber basic capability message (SBC-REQ/RSP). | 05-13-2010 |
20100135210 | METHOD OF RANDOM ACCESS AND A METHOD OF TRANSPORTING INFORMATION IN BROADBAND WIRELESS ACCESS SYSTEM - A method of performing random access in a broadband wireless access system is disclosed. The method includes performing first random access through at least one of a plurality of random access channels, receiving information about the number of access-failed channels among the plurality of random access channels from a base station, when the first random access fails, and performing second random access according to a probability value calculated based on the received information. The present invention increases utilization of random access channels and can effectively schedule an uplink bandwidth, thereby providing an efficient ranging method. | 06-03-2010 |
20100157923 | 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. | 06-24-2010 |
20100167756 | 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. | 07-01-2010 |
20100167770 | METHOD FOR TRANSMITTING AND RECEIVING SIGNAL IN MULTI-HOP RELAY SYSTEM - A first transparent relay station (RS) can receive a signal from a base station (BS) corresponding to superordinate node of the first transparent RS or a second RS corresponding to superordinate non-transparent RS the first transparent RS through a downlink receive zone, and the first transparent RS can transmit the signal received through the downlink receive zone to a mobile station (MS) through a downlink transmit zone, wherein a downlink subframes of the first transparent RS is located the downlink receive zone and the downlink transmit zone in order. | 07-01-2010 |
20100177693 | METHOD OF MAC HEADER GENERATION AND DATA TRANSMITTING - A method of generating MAC header and a method of transmitting data using the generated MAC header are disclosed. A mobile station can receive a message from a base station, the message including an indicator for identifying a service flow (SF). If the mobile station is connected with the base station to generate the service flow, the mobile station and the base station can map the service flow with the indicator. Accordingly, the base station can generate MAC header, which includes the indicator and a parameter representing whether the MAC header has been compressed. | 07-15-2010 |
20100189054 | METHOD FOR TRANSMITTING AND RECEIVING CONTROL CHANNEL WITH ADDITIONAL INFORMATION - A method for transmitting and receiving a control channel with additional information is disclosed. To this end, a mobile station acquires information of at least one control channel, which supports additional information transmission through phase rotation, and phase rotation value information for representing the additional information, and transmits control information through any one of the control channels and the additional information through phase rotation of the control information. A base station provides information of at least one control channel, which supports additional information transmission through phase rotation, and phase rotation value information for representing the additional information, and simultaneously receives specific control information and additional information from the mobile station based on the control channel information and the phase rotation value information. | 07-29-2010 |
20100205283 | METHOD AND APPARATUS FOR UPDATING SYSTEM INFORMATION IN BROADBAND WIRELESS COMMUNICATION SYSTEM - A method for updating system information in a broadband wireless communication system in which data is transmitted and received via a superframe, includes: receiving information from a base station by means of superframes including a primary superframe header (P-SFH) and a secondary superframe header (S-SFH), wherein the information including control information transmitted via an information element of the P-SFH (P-SFH IE) and system information transmitted via at least one of information element of a subpacket (SP) of the S-SFH (S-SFH SP IE); decoding the P-SFH IE, wherein the P-SFH IE including a scheduling information bitmap indicating a transmitted S-SFH SP IEs in the superframe, a change count (CC) of the S-SFH, and a SP change bitmap indicating changing status of the S-SFH SP IEs; comparing the received CC with a previously stored CC; checking the S-SFH SP change bitmap, if there is a difference between the received CC and the stored CC; and decoding and updating corresponding SP IE of the S-SFH based on the checking result. | 08-12-2010 |
20100205442 | METHOD AND APPARATUS FOR TRAFFIC COUNT KEY MANAGEMENT AND KEY COUNT MANAGEMENT - Various methods and apparatuses for managing count values (e.g. key counts) to manage a TEK in various communication environments are disclosed. Also, various methods and apparatuses for generating and maintaining a traffic key encryption key by using key count values are disclosed. | 08-12-2010 |
20100205500 | METHOD OF TRANSMITTING AND RECEIVING ARQ FEEDBACK INFORMATION - A method of transmitting and receiving Automatic Repeat reQuest (ARQ) feedback information in a wireless communication system is disclosed. The method of transmitting ARQ feedback information in a wireless communication system includes, at a transmitter, transmitting a Protocol Data Unit (PDU) including an extended header including an ARQ feedback Polling Request (APR) field indicating whether or not the transmitter makes a request for ARQ feedback polling, and receiving an Acknowledgement (ACK) from a receiver if the APR field indicates that the transmitter makes the request for ARQ feedback polling to the receiver. | 08-12-2010 |
20100208655 | METHOD OF TRANSMITTING PACKET FOR REDUCING HEADER OVERHEAD - A method of transmitting a packet for reducing header overhead is disclosed. That is, a detailed method of transmitting a packet including a compressed header by omitting a header including the same information as a header of a packet which is previously transmitted or omitting information overlapping with the header of the packet which is previously transmitted is provided. | 08-19-2010 |
20100215012 | METHOD OF CONVERTING ALLOCATED RADIO RESOURCE MODE OF MS IN WIRELESS ACCESS SYSTEM - A method of switching a radio resource mode allocated to a mobile station in a wireless access system is disclosed. The method for switching the radio-resource mode allocated to the mobile station in the wireless access system includes, transmitting information of a second radio-resource mode to a base station, thereby requesting a switching from a first radio-resource mode allocated to the mobile station to the second radio-resource mode, and re-requesting the switching of the radio-resource mode using a high-speed feedback channel, if a message approving the switching of the radio-resource mode is not received within a predetermined time. So, a variety of problems caused by inconsistency in operation mode between a mobile station receiving no control messages and the base station can be solved. | 08-26-2010 |
20100226389 | METHOD AND APPARATUS FOR UPDATING SYSTEM INFORMATION IN BROADBAND WIRELESS COMMUNICATION SYSTEM - A method for updating system information in a terminal in which data is transmitted by means of superframes, includes: receiving system information, scheduling periodicity information of the system information and changing information indicating changing status of the system information transmitted by means of a superframe header (SFH) from a base station; and updating the system information based on the changing information, wherein the SFH comprises a primary SFH including the changing information and a secondary SFH including at least one subpacket containing the system information, the scheduling periodicity information indicating a transmission periodicity of the subpacket is transmitted by means of the primary SFH or a predetermined subpacket, and when the terminal detects that a changed system information transmitted by means of the subpacket is not scheduled as indicated in the scheduling periodicity information, the terminal wakes up until the changed system information is received. | 09-09-2010 |
20100232329 | METHOD OF OPERATING A SLEEP MODE IN A WIRELESS COMMUNICATION SYSTEM - A sleep mode operating method in a wireless communication system is disclosed. In a sleep mode operating method in a wireless communication system according to one embodiment of the present invention, a user equipment receives a sleep response (MOB_SLP-RSP) message including a sleep cycle and a listening window from a base station. For the listening window, the user equipment receives a last PDU indication indicating whether a PDU (protocol data unit) transmitted from the base station is a last PDU. The user equipment terminates the listening window according to the last PDU indication. | 09-16-2010 |
20100246504 | METHODS OF TRANSMITTING AND RECEIVING DATA IN MOBILE COMMUNICATION SYSTEM AND DEVICE SUPPORTING THE SAME - A method and apparatus of transmitting and receiving data in a mobile communication system is disclosed. The method of transmitting and receiving data in a mobile communication system comprises receiving control information related to transmission and reception from a transmitting side, determining at least one of power saving parameter information of a talk spurt and a silence period from the control information related to transmission and reception, and receiving data from the transmitting side by applying the power saving parameter information depending on the talk spurt and the silence period. According to the above method, unnecessary data reception is not performed in the silence period. | 09-30-2010 |
20100246511 | METHOD OF ALLOCATING RESOURCE AREA IN WIRELESS ACCESS SYSTEM - A method of allocating a radio resource in a wireless access system is disclosed. The method includes receiving a control message associated with radio resource allocation for transmitting uplink data to the base station, wherein the control message comprises a first persistent uplink allocation information element comprising first resource allocation information associated with a first resource allocation region for transmitting the uplink data of a mobile station and transmitting an acknowledgment (ACK) message from the mobile station to the base station in response to successfully receiving the first persistent uplink allocation information element. | 09-30-2010 |
20100251083 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM - A method and apparatus for transmitting and receiving control information in a wireless communication system are disclosed. The control information transmission method includes masking a Cyclic Redundancy Check (CRC) by a CRC mask including a bit stream of a predetermined length and an indicator indicating the bit stream, and transmitting control information including the masked CRC to at least one Mobile Station (MS). The indicator indicates whether the bit stream included in the CRC mask includes a Random Access IDentifier (RAID). | 09-30-2010 |
20100254323 | BAND ADAPTIVE MODULATION AND CODING METHOD SHARING RESOURCES WITH NEIGHBOURING BASE STATIONS AND MOBILE STATION SUPPORTING THE SAME - A band adaptive modulation and coding method sharing resources with neighboring base stations and a mobile station supporting the same are disclosed. The mobile station identifies a channel status for each band by periodically scanning a neighboring base station, and requests a service base station to convert a current mode to a band sharing AMC mode if the identified channel stats satisfies a predetermined condition. The mobile station can use CQICH of 4 bits or 6 bits to request mode conversion. Selectively, the service base station can request the mobile station of channel status information of a neighboring base station to determine mode conversion. | 10-07-2010 |
20100254332 | METHOD OF ALLOCATING RESOURCE FOR MOBILE STATION TO SUPPORT REAL TIME SERVICE - A method of efficiently allocating a resource to a mobile station to support a real time service in a radio access system is provided. The method includes grouping one or more mobile stations and allocating a group resource area for transmitting bandwidth request information for transmitting real time service data of the grouped one or more mobile stations, and allocating respective individual resource areas of the one or more mobile stations included in the group resource area. Since the method of grouping the mobile service and efficiently allocating an uplink resource are provided, it is possible to reduce message overhead and efficiently use the resource. | 10-07-2010 |
20100260128 | METHOD FOR TRANSMITTING AND RECEIVING ACKNOWLEDGMENT IN A WIRELESS COMMUNICATION 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 a resource start offset field. The resource start offset field indicates an index of a starting resource unit of resources allocated by the ACK. | 10-14-2010 |
20100268951 | METHOD OF HANDOVER - A method for quickly performing a handover in a wireless access system is disclosed. The method for quickly performing a handover includes transmitting a handover request message to a serving base station (SBS), receiving a handover response message from the serving base station (SBS), and transmitting an uplink sequence generated by authentication-associated information of the serving base station (SBS) to a target base station (TBS). Therefore, a mobile station (MS) can complete the handover without exchanging a ranging message with the target base station (TBS), such that a communication interruption time can be minimized. | 10-21-2010 |
20100278150 | METHOD FOR INTER RAT HANDOVER - A method for inter RAT handover is disclosed. The method for inter RAT handover comprises measuring cell quality of WiMAX neighbor cells from a user equipment of E-UTRAN and transmitting the measured result to an origin base station; and if RRC message is received from the origin base station, the RRC message including WiMAX signal, pre-registering with a target WiMAX base station using tunneling based on second layer protocol. Therefore, the user equipment can continue to receive a service with maintaining current service quality even though the user equipment moves to a heterogeneous network. In addition, it is possible to reduce the time required for the user equipment to perform handover to the target base station. Moreover, if there is a failure of a radio link when the user equipment performs handover, it is possible to enable fast recovery. | 11-04-2010 |
20100290411 | 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 in non-consecutive frames. Specifically, a message, including allocation information used to collectively and non-consecutively allocate identical resource regions, is received from a base station and data is transmitted or received through the allocated resource regions. Since identical resource regions are collectively allocated in multiple frames, it is possible to reduce both the number of transmissions of a MAP message and MAP overhead in a network. | 11-18-2010 |
20100304743 | METHOD FOR MANAGING NEIGHBOR FEMTO BS LIST IN A BROADBAND WIRELESS ACCESS SYSTEM - A method for updating a neighbor list at a femto Base Station (BS) is disclosed. The method includes broadcasting a first broadcast message including information about an unavailable time interval during which scheduling is not performed for Mobile Stations (MSs), scanning at least one neighbor BS during the unavailable time interval, and updating the neighbor list according to a result of the scanning. | 12-02-2010 |
20100322229 | METHOD FOR ALLOCATING DYNAMIC TRANSMIT TIME INTERVAL - A method for allocating various transmit time intervals (TTIs) if a sub-frame structure is used, in a radio access system is provided. A transmitter transmits a super frame header including TTI information of a sub-frame included in a super frame to a receiver and transmits a sub-map including resource allocation information to the receiver, thereby dynamically allocating the TTI. Since the TTI information may not be received via the sub-map in every sub-frame, it is possible to prevent waste of a radio resource. | 12-23-2010 |
20100323647 | METHOD FOR CONTROLLING POWER SAVING MODE OF UE IN THE MOBILE COMMUNICATION SYSTEM - A method for controlling, a power saving mode of a mobile station (MS) in a mobile communication system is disclosed. The method differently defines operations of power saving modes of individual cases in association with message traffic distinguished from user traffic of a service, so that it can effectively reduce power consumption of the mobile station (MS). Firstly, the listening window of the power saving mode is used. Secondly, a method for transmitting a request message for pending the sleep mode is used. If the sleep-mode pending is requested, the sleep-mode resume message may be used in the case of a reactivation, or the reactivation can be automatically performed if a current time reaches a predetermined time. | 12-23-2010 |
20100323749 | METHOD FOR PERFORMING DOWNLINK/UPLINK HANDOVER - A method for performing a handover in a mobile communication system, which is capable of independently performing an uplink handover and a downlink handover, is disclosed. An uplink channel status of a base station is checked and the uplink handover to a base station having a good uplink channel status is performed. A downlink channel status of a base station is checked and the downlink handover to a base station having a good downlink channel status is performed. Accordingly, an uplink base station and a downlink base station may be different from each other. Transmission/reception efficiency can be improved by independently performing the handover. | 12-23-2010 |
20100329107 | METHOD OF ALLOCATING UPLINK RESOURCE REGION - A method for a base station to allocate an uplink resource using an uplink map in a wireless access system is disclosed. The present invention includes the steps of receiving a system information delivery message including subframe configuration information, receiving a map message including information on an allocation location of an uplink resource region, and calculating a time of allocating the uplink resource region using the subframe configuration information and the information on the allocation location of the uplink resource region. | 12-30-2010 |
20110002273 | METHOD FOR TRANSMITTING SUBFRAME GROUPING INFORMATION AND DECODING SUBFRAME GROUPED FRAMES - A method for transmitting subframe grouping information and a method for decoding subframe-grouped frames are provided. The subframe grouping information transmission method updates a grouping information field of a MAC message, which a serving base station periodically broadcasts to an MS, using subframe grouping information determined by a target base station, and periodically transmits the MAC message to the MS. This method enables provision of a downlink signaling method for supporting variable TTIs of a base station when handover is performed, thereby minimizing service delay of each mobile station and enabling efficient utilization of resources. | 01-06-2011 |
20110009143 | METHOD FOR ALLOCATING CONTROL CHANNELS - A frame structure used in a wireless access system and a method for allocating uplink control channels are provided. The method transmits a super-MAP including information regarding a control channel allocation method and control channel allocation information to a receiving end and receives a control signal through an uplink subframe indicated by the control channel allocation information using the control channel allocation method. Thus, the transmitting end can correctly allocate a control channel for each downlink burst. | 01-13-2011 |
20110014877 | METHOD FOR TRANSMITTING AND UPDATING SYSTEM INFORMATION IN A LEGACY SUPPORT SYSTEM - A method for transmitting and updating system information in a system that supports a legacy mobile station is disclosed. A method for transmitting system information according to one embodiment of the present invention comprises transmitting a super-map through a new zone of a super-frame, the super-map including channel description transmission control information indicating a channel descriptor of a legacy zone; and transmitting the channel descriptor and a map message through the legacy zone, the map message indicating the channel descriptor. | 01-20-2011 |
20110014916 | METHOD FOR HANDOVER WITH CONSIDERATION OF THE NEIGHBOR BASE STATIONS' CIRCUMSTANCES - A method for a handover with consideration of neighbor base stations' circumstances is disclosed. The method for a handover with consideration of neighbor base stations' circumstances by a mobile station in a wireless communication system includes transmitting a handover request (MOB_MSHO-REQ) message to a serving base station, receiving a handover response (MOB_BSHO-RSP) message including a base stations list made with consideration of the neighbor base station's circumstances from the serving base station, and selecting a base station among neighbor base stations except some base stations of the base stations list and transmitting a handover indicate (MOB_HO_IND) message including a information of the selected base station to the serving base station. | 01-20-2011 |
20110032899 | METHOD OF PAGING USING HEADER - A method for paging in a wireless access system is disclosed. A method for efficiently paging a mobile station of an idle mode comprises allocating an identifier of a large paging group and an identifier of a specific one of small paging groups included in the large paging group to a broadcast channel region and transmitting a header including the broadcast channel region to the terminal. Accordingly, the present invention enables efficient paging. | 02-10-2011 |
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 |
20110051666 | METHOD OF COMMUNICATION USING SUB-MAP - A radio access system, and more particularly, a frame structure and a map structure are provided. A communication method includes transmitting an uplink sub-map to a receiver at a first downlink sub-frame included in a predetermined frame, and receiving data via a data burst indicated by the uplink sub-map at a first uplink sub-frame included in the predetermined frame. If the suggested sub-frame structure is used, it is possible to reduce HARQ ACK delay and HARQ retransmission delay. | 03-03-2011 |
20110098071 | Method for Releasing Resources Allocated by Persistent Scheduling - A method for releasing resources allocated by persistent scheduling is described. A base station (BS) inserts a persistent allocation release indication message into a control channel, wherein the persistent allocation release indication message includes at least one resource index indicating persistent allocation resources to a mobile station (MS), broadcasts the control channel, and releases the persistent allocation resources corresponding to the resource index. Since a release message for persistent allocation, a channel quality indicator channel, feedback polling allocation, etc. is inserted for transmission into a control channel which can be received by all MSs, overhead which occurs during resource release can be minimized irrespective of transmission rates varying with MSs. | 04-28-2011 |
20110116467 | DATA RECEPTION AND TRANSMISSION METHOD AND APPARATUS FOR POWER SAVING IN COMMUNICATION SYSTEM USING MULTIPLE CARRIERS - The present invention relates to a multi-carrier resource utilization method and apparatus for power saving in a communication system using a multi-carrier, in which the activation of a secondary carrier for transmitting and receiving data traffic between a terminal and a base station is determined according to the QoS (Quality of Service) requirements such as a data traffic status between the terminal and the base station, a maximum sustained traffic rate, a maximum traffic burst size, or the like, and an indication message (Indication) indicating this is transferred to the terminal through a primary carrier to transmit and receive data traffic through the activated secondary carrier. | 05-19-2011 |
20110134873 | METHOD FOR REQUESTING UPLINK RESOURCES AND TRANSMITTING UPLINK DATA - A method for requesting uplink resources and transmitting data is provided. The method includes being allocated to a BR code from a BS by an MS, and transmitting a BR indicator in a format without an ID of the MS to the BS using the BR code in non-contention mode by the MS. Because contention-based MSs and non-contention-based MSs transmit different uplink allocation request information, unnecessary information transmission is avoided, which is efficient. Also, information specific to each MS can be transmitted in extra resources. | 06-09-2011 |
20110134893 | METHOD OF TRANSMITTING AND RECEIVING PAGING INFORMATION - Various methods of transmitting paging information in a wireless access system are disclosed. A method of transmitting paging information from a base station belonging to at least one paging groups according to one embodiment of the present invention includes the steps of allocating a paging group offset (PGO) per one specific one of at least one paging groups, transmitting a message including one paging group offset (PGO) per one specific paging group, and transmitting a broadcast channel (BCH) including paging group formation on the specific paging group at a timing point indicated by the paging group offset. | 06-09-2011 |
20110141997 | METHOD FOR FEEDBACK TO UPLINK ALLOCATION REQUEST - A method for a feedback to an uplink allocation request is disclosed. The method for a feedback to an uplink allocation request comprises receiving a bandwidth request (BR) of the mobile station in a base station; detecting codes from the bandwidth request; and transmitting a BR result report to a mobile station, the BR result report indicating detection failure when detecting the codes or code repetition. According to the embodiment of the present invention, it is advantageous in that a wait time of a timer can be reduced as the base station directly reports the result of the transmission of the bandwidth request can be performed promptly. | 06-16-2011 |
20110149912 | APPARATUS AND METHOD FOR SUPPORTING HANDOVER IN A MULTI-CARRIER COMMUNICATION SYSTEM - The present invention relates to an apparatus and method for supporting handover in a communication system using a multi-carrier approach. The method includes transmitting a handover request message to a serving base station (BS) through a first carrier; receiving a handover response message including neighboring base station information and temporary carrier information capable of performing a handover procedure from the serving base station through the first carrier; selecting a target base station (BS) through the neighboring base station information received from the serving base station; transmitting a handover (HO) indication message indicating a handover to the target base station to the serving base station through the first carrier; transmitting a ranging request message for synchronizing an uplink channel with the target base station to the target base station through the temporary carrier; and receiving a ranging response message from the target base station. | 06-23-2011 |
20110163847 | METHOD FOR RECEIVING AND TRANSMITTING A PAGING MESSAGE - A method for receiving and transmitting a paging message is disclosed. A method for receiving a paging message in an idle mode of a mobile station comprises receiving a paging indicator channel included in a super frame header from a base station; if a paging message of the mobile station exists after identifying the paging indicator, identifying a wake-up time of the mobile station from mapping information of the paging indicator channel; and receiving the paging message from the base station by waking up at the wake-up time. According to the embodiments of the present invention, the paging indicator channel including information useful for the mobile station to receive the paging message is added to the IEEE 802.16m frame structure, whereby the power consumed to receive the paging message can be reduced. | 07-07-2011 |
20110164586 | METHOD AND APPARATUS FOR TRANSMISSION AND RECEPTION OF DATA USING A COMPACT HEADER - The present invention relates to compact header structures of various forms used in wireless access systems as well as a method and apparatus for the transmission and reception of data using such headers. The method for receiving data wherein the mobile terminal uses the Persistent Allocation (PA) mode in one of the embodiments of the present invention comprises the step of receiving a Downlink Persistent Allocation MAP Information Element (DL PA MAP IE) from the base station, which contains information relating to the resource region allocated for persistent allocation in the downlink, and the step of receiving the downlink data containing a Compact Medium access control Header (CMH) via said resource region revealed by said information. At this stage, the CMH can contain an indicator that indicates whether the downlink data contains an extended header, and a length field indicating the length of the data payload. | 07-07-2011 |
20110176507 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING CONTROL CHANNEL IN A MULTI-CARRIER COMMUNICATIONS SYSTEM - The present invention relates to a method and apparatus for transmitting and receiving data in a multi-carrier communications system. The data transmission/receiving method uses multiple carriers including a primary carrier that is capable of transmitting and receiving data traffic and PHY/MAC control information between a terminal and a base station and at least one secondary carrier that transmits and receives down-link data traffic between the terminal and the base station. The method comprises: generating an MPDU (MAC Protocol Data Unit) to be sent to a PHY (Physical) layer in an MAC (Medium Access Control) layer; performing channel-coding and modulation on the MPDU to generate a modulated symbol sequence in the PHY layer; segmenting the modulated symbol sequence into multiple symbol sequences; and allocating the multiple segmented symbol sequences to multiple carriers, respectively, to perform IFFT (Inverse Fast Fourier Transform) and transmit to a terminal, wherein control information on the multiple carriers is allocated to a control channel region of the primary carrier and transmitted via the primary carrier. | 07-21-2011 |
20110201311 | METHOD OF INITIAL ACCESS IN A WIRELESS COMMUNICATION SYSTEM - A method of initial access in a wireless communication system is disclosed. A method of initial access of a mobile station in a wireless communication system with femtocells comprises selecting a base station to which the mobile station requests information of femto cell base stations which can serve the mobile station and exist around the mobile station through scanning downlink channel; and requesting the selected base station the information of the femto cell base stations. | 08-18-2011 |
20110202760 | METHOD FOR IDENTIFYING MOBILE STATION - A data transmission and reception method for ensuring privacy and security and a method for identifying a Mobile Station (MS), while ensuring the location privacy of the MS in a wireless access system are disclosed. The MS identification method includes transmitting a ranging request message including a hashed Medium Access Control (MAC) address to a Base Station (BS), for initial ranging, and receiving a ranging response message including a temporary station Identifier (ID) from the BS. The temporary station ID is used to provide security to a MAC address or station ID by which the BS uniquely identifies the MS. | 08-18-2011 |
20110205958 | METHOD FOR TRANSMISSION AND CONFIGURATION OF RANGING CHANNEL IN ACCORDANCE WITH A VARIETY OF FRAME STRUCTURES IN RADIO COMMUNICATION SYSTEM - The present invention relates to configuration procedures and transmission of a ranging channel for a synchronization of an uplink of user equipment and a relay station in a communication system which supports a relay, in that the configuration of the ranging channel for acquiring an uplink synchronization may vary in accordance with a variety of frame structures, thereby reducing uplink interferences and performing an uplink synchronization in a stable and quick manner. | 08-25-2011 |
20110205972 | 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) is disclosed. The method comprises steps of 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, wherein the AAI_DSA-REQ message comprises 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, wherein the AAI_DSA-RSP message comprises 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 comprising the MAC header indicated by the second MAC header type parameter; wherein the MAC header type parameter indicates one of a generic MAC header (GMH) for general data packet transmission and a short-packet MAC header (SPMH) for small data packet transmission and a non-ARQ connection. | 08-25-2011 |
20110205993 | METHOD FOR ALLOCATING UPLINK RESOURCES USING QoS PARAMETER - A method for allocating uplink resources using a Quality of Service (QoS) parameter is disclosed. The method includes receiving a Bandwidth Request (BR) indicator including a station Identifier (ID) and a QoS parameter from a Mobile Station (MS), estimating uplink resources to be allocated to the MS using the station ID and the QoS parameter, and transmitting information about the estimated uplink resources to the MS by an uplink grant message. Thus, the overhead of an uplink allocation request transmitted for allocation of uplink resources is minimized. When additional information such as a BR size, etc. is used, resources are efficiently allocated. | 08-25-2011 |
20110211571 | UPLINK SYNCHRONIZATION IN MULTIPLE CARRIER SYSTEM - A method and apparatus of uplink synchronization in a multiple carrier system is provided. After establishing Uplink synchronization for a primary carrier, a secondary carrier based on activation information via the primary carrier is activated. A periodic ranging via the secondary carrier is performed to adjust uplink synchronization for the secondary carrier. | 09-01-2011 |
20110212731 | METHOD OF RESOURCE RESERVATION REQUEST AND RESOURCE RESERVATION IN WIRELESS COMMUNICATION SYSTEM - A method of resource reservation request and resource reservation in a wireless communication system is disclosed. A method of resource reservation request of a mobile station in a wireless communication system with femto cells comprises transmitting a resource reservation request message to a macro base station to request a femto cell base station not to use resource used by the mobile station if interference from the femto cell base station is over a threshold; and receiving a resource reservation response message from a macro base station. | 09-01-2011 |
20110216730 | METHOD AND APPARATUS FOR SENDING AND RECEIVING MULTI-CARRIER INFORMATION IN MULTI-CARRIER COMMUNICATION SYSTEM - The present invention relates to a method and apparatus for sending and receiving multi-carrier information to support multi-carrier mode operations in a multi-carrier communication system. The method of the present invention for sending and receiving multi-carrier information comprises a step wherein a base station transmits system information on a supportable multi-carrier to a terminal via a broadcast message; a step wherein a unicast message is received from the terminal, including information regarding the carriers that the terminal prefers or is able to support in the multi-carrier list included in said system information; and a step wherein multi-carrier allocation information, including the primary carrier and secondary carrier that the terminal will use, is transmitted to the terminal via unicast message. | 09-08-2011 |
20110244792 | METHOD FOR SAVING POWER OF A FEMTO BASE STATION USING SLEEP PERIOD SYNCHRONIZATION - The present invention relates to a wireless access system, and more particularly, to a method for saving power of a femto base station. The present invention includes obtaining reference synchronization information used in a prescribed area to enable a first femto base station to perform a sleep mode operation, shifting to a sleep mode if a mobile station does not exist within the first femto base station, and enabling the first femto base station to be synchronized with at least one second femto base station belonging to the prescribed area using the reference synchronization information, wherein each of the femto base stations included in the prescribed area achieves synchronization of the sleep mode operation using the reference synchronization information. Accordingly, it is able to minimize power consumption of a femto base station and interference with a macro cell in a wireless access system supporting a femtocell. And, a mobile station within a femtocell is able to perform reliable communications. | 10-06-2011 |
20110249630 | METHOD OF RETRANSMISSION TO REDUCE THE OVERHEAD - A method of transmitting data in a wireless access system and a packet retransmitting method therein are disclosed. The present invention includes receiving an initial control message including information required for a packet retransmission from a base station, transmitting the packet to be provided with a service from the base station, and if a NACK (non-acknowledgement) signal is received from the base station, retransmitting the packet corresponding to the NACK signal to the base station using the information required for the packet retransmission and included in the initial control message. Therefore, since a separate control message needs not to be transmitted in case of packet retransmission,.it is able to save radio resources and reduce an overhead by retransmitting a packet via a previously allocated retransmission region without the separate control message. | 10-13-2011 |
20110255498 | Method for Transmission of Downlink Control Message in Mobile Communication System - A method for transmission of a downlink control message in a mobile communication system is provided. Said method comprises a step wherein user-specific control information (USCI) on a plurality of user equipment (UE) is arranged to generate a series of control message at a base station and a step wherein said control messages that have been generated are transmitted. The arrangement sequence value of a specific type of USCI within said control message is used as channel allocation information regarding the UE to which said specific USCI is transmitted. | 10-20-2011 |
20110256883 | METHOD FOR TRANSMITTING AND RECEIVING PAGING MESSAGES - The present invention relates to a communication method for an idle mode terminal in a wireless access system to which a femtocell is applied. The method for receiving paging messages at a terminal in a femtocell environment according to one embodiment of the present invention comprises the steps of: receiving a deregistration command message containing first paging information of a first cell region from a first base station; setting a first timer for carrying out a location update with the first base station; moving from the first cell region to a second cell region; setting a second timer for delaying the location update for a predetermined time period; and receiving a paging message in the second cell region. | 10-20-2011 |
20110261712 | METHOD OF TRANSMITTING AND RECEIVING CARRIER CONFIGURATION INFORMATION - A method for allowing a mobile station to reliably receive a paging message in a multi-carrier system is disclosed. A method for controlling a mobile station to receive carrier configuration information (CCI) in a wireless access system supporting multiple carriers includes a) receiving a first CCI including information about configuration of the multiple carriers from a first base station, b) receiving a second CCI including information about configuration of the multiple carriers from a second BS, and c) determining whether to perform location update and carrier switching using the first CCI and the second CCI. | 10-27-2011 |
20110286419 | METHOD FOR TRANSMITTING SERVICE FLOW INFORMATION IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method for transmitting service flow information in a wireless communication system. The method for transmitting service flow information in a wireless communication system according to one aspect of the present invention comprises the step of enabling a terminal to transmit, to a base station and through the service flow to be generated or modified during a service flow generating or modifying process, an indicator for indicating whether or not uplink data to be transmitted exists. | 11-24-2011 |
20110286420 | 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. | 11-24-2011 |
20110287759 | METHOD FOR OPERATING SERVICE UNAVAILABLE MODE OF FEMTO BASE STATION - The present invention relates to a broadband wireless access system, and more particularly, to a method for efficiently operating a service unavailable mode of Femto base station. The method for operating a service unavailable mode of Femto base station in the broadband wireless access system according to one embodiment of the present invention, comprises the steps of: determining whether the preset condition for the operation of a service unavailable mode is satisfied; and broadcasting service unavailable mode information for indicating the state of service unavailable mode of the Femto base station in accordance with the result of determination on the preset condition. | 11-24-2011 |
20110292856 | METHOD OF ALLOCATING PAGING CARRIER AND MOBILE STATION - A method of allocating a paging carrier in a multi-carrier environment is disclosed. The method of allocating the paging carrier includes receiving a first message including first allocation information of the paging carrier, transmitting a second message for requesting entry into an idle mode to a base station; and receiving a third message including second allocation information of a changed paging carrier from the base station. At this time, the paging carrier includes a paging channel out of multiple carriers including one or more carriers. | 12-01-2011 |
20110299502 | METHOD FOR PERFORMING HANDOVER IN A MOBILE COMMUNICATION SYSTEM - Disclosed is a method for enabling a mobile terminal to perform a handover in a mobile communication system. A serving base station which supports both a first communication scheme and a second communication scheme can transmit, to the mobile terminal, a neighbor base station list broadcast message containing time offset information indicating the point of time to transmit information on a second base station which uses the second communication scheme and supports only the second communication scheme via a specific zone using the second communication scheme. The mobile terminal which has received the message can receive, from the serving base station, the information on the second base station via the specific zone on the basis of the received time offset information. | 12-08-2011 |
20110310841 | EFFECTIVE METHOD OF HANDOVER IN WIDEBAND RADIO ACCESS SYSTEM - The present invention relates t a wideband radio access system, and more particularly, to a method for enabling adjustment of timing to transmit a handover instruction message and to a mobile terminal capable of performing the method. A method for a terminal handover in a wideband radio access system according to one embodiment of the present invention comprises: receiving from a serving base station a handover command message that contains first timing information indicative of a time for transmitting a first uplink resource allocation information to transmit a handover instruction message; receiving the first uplink allocation information from the serving base station at the timing indicated by the first timing information; and transmitting the handover instruction message to the serving base station through an uplink resource indicated by the first uplink allocation information. | 12-22-2011 |
20110312338 | METHOD OF LOCATION UPDATE IN A WIRELESS COMMUNICATION SYSTEM - A location update method in a wireless communication system is disclosed. The method for performing a location update in a mobile station (MS) of the wireless communication system including a femtocell includes receiving a deregistration command (DREG-CMD) message that includes not only a paging group identifier (ID) of a first femtocell base station (BS) in which the MS stays but also a paging group ID of a macro BS including the first femtocell BS, initiating a location update delay timer while the MS moves from the first femtocell area to a second femtocell area having a paging group ID different from that of the first femtocell, and performing location update according to an operation of the location update delay timer. | 12-22-2011 |
20110317626 | BANDWIDTH REQUEST PREAMBLE SEQUENCE SELECTION METHOD AND RANDOM ACCESS METHOD - The present invention relates to a bandwidth request preamble sequence selecting method for bandwidth requests on a wireless access system, and to a random access procedure using the same. Also, the present invention relates to devices supporting the random access procedure. In one example of the present invention, the method for randomly accessing a wireless access system may comprise the steps of: receiving a first message containing a predefined bandwidth request index from a base station; selecting a bandwidth request preamble sequence from the predefined bandwidth request index on the basis if the properties of uplink data to be transmitted by a mobile terminal; transmitting a second message containing a predefined bandwidth request index to the base station; and transmitting the selected bandwidth request preamble sequence to the base station. | 12-29-2011 |
20110317665 | METHOD FOR UPDATING SYSTEM INFORMATION DURING HAND-OVER IN BROADBAND WIRELESS ACCESS SYSTEM - The present invention relates to a broadband wireless access system, and more particularly, to a method for efficiently acquiring system information on a target base station during a hand-over, and to an apparatus for carrying out the method. One method for enabling a mobile station to update system information on a target base station during a hand-over, according to one embodiment of the present invention, comprises the steps of: receiving, from a serving base station, a broadcast message containing system information on at least one neighbor base station including the target base station, and containing first change count information for indicating whether or not to update the system information; and receiving, from the serving base station, second change count information for indicating whether or not to update the system information currently possessed by the serving base station. | 12-29-2011 |
20120002628 | TECHNIQUE FOR EFFICIENTLY ALLOCATING RESOURCES IN VOIP COMMUNICATION - Disclosed is a method for performing efficient scheduling for VoIP communication, and performing VoIP communication according to the schedule. A bandwidth size and a transmission interval for the transmission of a VoIP packet to be used during a talk spurt are set, and a bandwidth size to be used for the transmission of an SID packet during a silence period is set in VoIP communication. The bandwidth size to be used during the silence period can be set to the bandwidth required for the transmission of an SID packet. To divide the talk spurt and the silence period, a user equipment uses two types of CQICH code words, so that a base station therefore performs scheduling in an efficient manner. | 01-05-2012 |
20120008596 | METHOD AND APPARATUS FOR HANDOVER IN A MOBILE COMMUNICATION SYSTEM - The present invention relates to a handover method for a mobile communication system. The handover method according to the present invention comprises the steps of: receiving from a serving base station a handover command message, the handover command message containing target base station information, information on an available interval enabling data transmission/reception to/from the serving base station during handover, information on an unavailable interval not enabling data transmission/reception during handover, and information on the time of disconnection of a link connected to the serving base station; performing a network entry process with the target base station; transmitting status information to the serving base station when an error has occurred in the network entry process; receiving from the serving base station a status information response message containing available interval and unavailable interval reset information and link disconnection time reset information for extending the link disconnection time; enabling the serving base station to provide a data transmitting/receiving service during the available interval; and re-performing the network entry process with the target base station, and disconnecting the link to the serving base station at the reset link disconnection time. | 01-12-2012 |
20120014287 | METHOD FOR TRANSMITTING AND RECEIVING GROUP DELETION INFORMATION - A method for transmitting and receiving group configuration information on a user equipment is disclosed. The user equipment receives information on group deletion of the user equipment from a base station. The user equipment transmits an acknowledgement (ACK) signal about the received information on the group deletion to the base station. In this case, the information on the group deletion is configured as a separate extended header type or a type that an extended header is piggybacked on a specific downlink packet to be transmitted to the user equipment. Preferably, the user equipment decodes the received information on the group deletion of the user equipment. The user equipment successfully decodes the information on the group deletion and is then able to transmit the acknowledgement (ACK) signal about the received information on the group deletion to the base station. | 01-19-2012 |
20120014355 | METHOD OF RELIABLE HANDOVER SIGNALING PROCEDURE IN A BROADBAND WIRELESS ACCESS SYSTEM - A method for determining whether a mobile station (MS) is present in coverage of a serving base station (SBS) during a handover process and an apparatus for carrying out the same, resulting in the implementation of more reliable handover, are disclosed. A method for controlling an MS to perform a presence check procedure during handover of a broadband wireless access system includes receiving a first signal for a presence check request from an SBS, and transmitting a second signal as a response to the presence check request to the SBS. Preferably, the first signal is received after the lapse of a first time indicating a deadline at which the MS performs network re-entry to a target base station (TBS). | 01-19-2012 |
20120014366 | METHOD FOR TRANSMITTING MEDIA ACCESS CONTROL PROTOCOL DATA UNIT - A method for transmitting a relatively large amount of data and an apparatus supporting the same are proposed. The data transmission method includes constructing a MAC PDU including an Advanced Generic MAC Header (AGMH) with a first length field, a MAC PDU Length Extended Header (MLEH) with a second length field, and payload, and transmitting the MAC PDU to a receiver. The first length field and the second length field are used for calculating a total length of the MAC PDU. | 01-19-2012 |
20120020329 | METHOD FOR ACQUIRING INFORMATION FOR MEDIA INDEPENDENT HANDOVER - This document is related to a method for acquiring information for media independent handover. More specifically the method comprises: submitting a media independent handover (MIH) query to a base station (BS) by sending a first request message, and receiving a response to the MIH query. Because the first request message is used for authorization, preferably the PKM message, the MS can acquire information for handover between heterogeneous networks before the MS finishes the network entry. | 01-26-2012 |
20120026978 | METHOD OF ZONE SWITCH IN A BROADBAND WIRELESS ACCESS SYSTEM - A method for allowing a mobile station (MS) to perform zone switching within coverage of a base station (BS) in a broadband wireless access system is disclosed. A method for controlling an advanced mobile station (AMS) to perform zone switching in an MZone of a serving advanced base station (serving ABS) supporting a legacy mobile station (MS) includes receiving a handover command (AAI_HO-CMD) message indicating zone switching to a legacy zone (LZone) from the MZone, and receiving at least one of an uplink MAP (UL-MAP) and a downlink MAP (DL-MAP) from the LZone. | 02-02-2012 |
20120034918 | METHOD AND APPARATUS FOR PERFORMING IDLE-MODE OPERATION USING MOBILITY INFORMATION - A method and apparatus for performing a location update based on mobility information indicating a velocity of a Mobile Station (MS), and a method and apparatus for using a timer for a location update in a wireless access system are disclosed. The MS transmits a deregistration request message requesting initiation of idle mode to a first Base Station (BS), receives a deregistration command message including paging group information from the first BS, the paging group information including a primary paging group Identifier (ID) and primary paging offset of a primary paging group allocated to the MS, and a secondary paging group ID and secondary paging offset of a secondary paging group allocated to the MS, and activates a paging group location update timer after moving from the primary paging group to the secondary paging group. The deregistration request message includes first mobility information indicating a velocity of the MS and the paging group information is set based on the first mobility information. | 02-09-2012 |
20120039288 | RESOURCE ALLOCATION METHOD FOR BROADBAND WIRELESS CONNECTION SYSTEM, AND APPARATUS FOR PERFORMING SAME - The present invention relates to a broadband wireless connection system, and more particularly, to a method for a base station to more efficiently allocate resources to a terminal, and to an apparatus for performing same. In a broadband wireless connection system according to one aspect of the present invention, a method for a base station for continuously allocating resources comprises the steps of: determining a size and location of a continuous allocation resource to be allocated through continuous resource allocation; comparing the size and location of the determined continuous allocation resource with those of previously allocated continuous allocation resources; and transmitting a map information element (A-MAP IE) including resource allocation information set according to the results of the comparison to a terminal. | 02-16-2012 |
20120039289 | GROUP RESOURCE ALLOCATION METHOD IN BROADBAND WIRELESS ACCESS SYSTEM AND APPARATUS THEREFOR - The present invention relates to a broadband wireless access system, and more specifically, to a reliable group resource allocation method and an apparatus therefor. A group resource allocation operating method of a terminal in a broadband wireless access system according to one aspect of the present invention comprises the steps of: receiving a message which includes group setup information from a base station; determining a channel identifier of a 1 | 02-16-2012 |
20120044909 | EFFICIENT HANDOVER METHOD IN BROADBAND WIRELESS ACCESS SYSTEM - The present invention relates to a broadband wireless access system, and more particularly, to a handover method that can reduce a stop time in an entry before a break-type handover for performing more efficient handover, and to apparatus for performing same. A handover method for a terminal in a broadband wireless access system according to one embodiment of the present invention may include: receiving, from a serving base station, a handover command message including the information of a section in which scheduling for the terminal is not performed; transmitting a ranging code to a target base station during the section; and receiving information indicating the transmitted result of the ranging code from the serving base station. | 02-23-2012 |
20120063423 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING RESOURCE ALLOCATION INFORMATION IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and apparatus for transmitting/receiving resource allocation information in a random access process in a wireless communication system. The method for transmitting/receiving resource allocation information in a random access process in a wireless communication system, according to one aspect of the present invention, involves a base station receiving a code from a terminal, and transmitting, to the terminal, CDMA Allocation A-MAP IE (code division multiple access allocation Advanced-MAP information element) including a field which indicates whether it is a source allocation for a bandwidth request or a resource allocation for ranging. | 03-15-2012 |
20120064854 | METHOD FOR REQUESTING EMERGENCY SERVICE AT MOBILE STATION IN A WIRELESS COMMUNICATION SYSTEM - A method for requesting an emergency service to a base station and a mobile station using the same are disclosed. During initial network entry, a mobile station may transmit an emergency message to a base station using an emergency Flow Identifier (FID), and receive from the base station information about resources allocated according to a default service flow parameter predefined for the emergency service by the base station. The mobile station may transmit to the base station a ranging request message including an emergency service indicator indicating an emergency service request, and receive from the base station a ranging response message including an emergency FID allocated by the BS as a response to the emergency service request. The emergency FID is the emergency FID received in the ranging response message. If the default service flow parameter is not predefined for the emergency service, the mobile station may establish an emergency service flow by a Dynamic Service Addition (DSA) transaction with the base station. | 03-15-2012 |
20120069813 | Method for Performing a Bandwidth Request Procedure, and Terminal Apparatus for Same - The present document describes a method in which a terminal performs a bandwidth request procedure when a single terminal makes a bandwidth request for a plurality of flows. The present document also describes an improved bandwidth request header. When the terminal is allocated with an uplink resource for the transmission of a bandwidth request header from a base station during the bandwidth request procedure, the terminal may notify the base station, using a bandwidth request header indicating a bandwidth size of zero, that it has no data for which a bandwidth request is to be made to the base station, if the terminal has no data for which a bandwidth request is to be made to the base station. | 03-22-2012 |
20120077486 | METHOD OF LOW DUTY MODE OPERATION IN A FEMTO BASE STATION IN CONSIDERATION OF A FEMTO CELL TYPE - The present invention relates to a broadband wireless access system including a femto cell, and more particularly, to a method of low duty operation in a femto base station. According to one embodiment of the present invention, in a broadband wireless access system, a method of a low duty mode operation of a femto base station saving power includes the steps of determining a low duty mode pattern to be performed by the femto base station according to a preset reference and performing the low duty mode operation according to the determined pattern. In this case, the preset reference can include at least one selected from the group consisting of a battery level, an available resource status and a subscriber type of the femto base station. | 03-29-2012 |
20120094664 | METHOD OF SCANNING NEIGHBOR BASE STATION IN A BROADBAND WIRELESS ACCESS SYSTEM - The present invention relates to a broadband wireless access system, and more particularly, to a method for a mobile station to efficiently scan a neighbor base station and apparatus therefor. According to one embodiment of the present invention, in a broadband wireless access system, a method of performing a scan, which is performed by a mobile station to scan a neighbor base station, includes the steps of receiving a scan response (AAI_SCN-RSP) message including a first interval information indicating an interval for the mobile station to receive a preamble of the neighbor base station from a serving base station and receiving the preamble from the neighbor base station in the first interval. Preferably, the first interval is set by a subframe unit. | 04-19-2012 |
20120106515 | RANGING OF TERMINAL IN LEGACY SUPPORT MODE - The present invention relates to a broadband wireless access system, and more particularly, a ranging technique of a terminal using a legacy support frame in a mobile communication system including a legacy system and an advanced system. According to one form of an embodiment of the present invention, the ranging method of the terminal for a base station in the mobile communication system having the legacy system and the advanced system comprises the steps of: receiving secondary super frame header (S-SFH) information from the base station; determining whether a frame composition used in the mobile communication system supports the legacy system; acquiring ranging channel information for initial ranging, handover ranging, and periodical ranging from the S-SFH; and performing one or more ranging processes of the initial ranging, the handover ranging, and the periodical ranging in the base station by using the ranging channel information. | 05-03-2012 |
20120113940 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING CONTROL INFORMATION FOR ADDITIONAL BROADCAST INFORMATION IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and apparatus for transmitting/receiving control information for additional broadcast information in a wireless communication system. According to one aspect of the present invention, a method for transmitting control information for additional broadcast information in a wireless communication system comprises a step in which a base station transmits control information containing information on the transmission time of the additional broadcast message, and transmits the additional broadcast message at said transmission time. | 05-10-2012 |
20120113947 | METHOD FOR EFFICIENTLY TRANSMITTING BROADCASTING MESSAGE IN BROADBAND WIRELESS ACCESS SYSTEM - The present invention relates to a broadband wireless access system, and more particularly to a method for efficiently communicating scheduling information about a broadcasting message to a terminal. The method for transmitting the broadcasting message in the broadband wireless access system comprises the steps of: transmitting a first map including scheduling information for at least one broadcasting message transmitted within a predetermined transmission unit to a terminal; and broadcasting the message through a resource region indicated by the scheduling information. In the method, it is desirable that the first map is an extended map of a second map including non-user specific control information. | 05-10-2012 |
20120113949 | METHOD FOR EFFICIENTLY ALLOCATING A RESOURCE IN VOIP COMMUNICATION - The present invention relates to a VoIP communication technique, and more particularly, to a method for performing efficient scheduling for VoIP communication and performing VoIP communication according to the schedule. According to one aspect of the present invention, a method for allocating a resource to the mobile station comprises a step of receiving a first CQICH codeword type from the mobile station; a step of allocating an uplink resource having a preset bandwidth size type for VoIP packet transmission to the mobile station for every first interval type for the VoIP packet transmission; a step of receiving a second CQICH codeword type from the mobile station; and a step of allocating an uplink resource having a preset bandwidth size type for SID packet transmission to the mobile station. | 05-10-2012 |
20120115482 | 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. | 05-10-2012 |
20120140733 | METHOD AND APPARATUS FOR HANDOVER BY CHANGING ZONES IN A WIRELESS COMMUNICATION SYSTEM - A method for a terminal to perform a handover including transmitting a ranging request message, containing a field requesting a zone change from a first type of terminal support zone to a second type of terminal support zone of the second type of target base station, to the second type of target base station via the first type of terminal support zone; receiving a ranging response message, containing a field indicating the omission of a capability negotiation message in the event of network reentry, from the second type of target base station via the first type of terminal support zone; and transmitting a second type of capability request message to the second type of target base station via the second type of terminal support zone. | 06-07-2012 |