Abstract: The present invention relates to a method of controlling data transmission for a multimedia/broadcast service (MBS) in a broadband wireless access system. In a data transmission control method for a multicast broadcast service (MBS) in a broadband wireless access system, the present invention includes the steps of receiving information for a downlink burst profile suitable for receiving MBS data from at least one mobile subscriber station, selecting a downlink burst profile suitable for transmitting the MBS data using the information for the downlink burst profile, and transmitting the MBS data to the at least one mobile subscriber station using the selected downlink burst profile.

Abstract: The methods and an apparatuses for scanning in WLAN are disclosed. A method of a scanning of a station (STA) may include monitoring a channel during a probedelay based on a MAC sublayer management entity (MLME)-SCAN.request primitive indicating an active scanning for a target Access Point (AP), receiving a frame including a channel congestion indicator from an AP during the probedelay, generating a MLME-SCAN.change request primitive to request a change of a scanning type parameter included in the MLME-SCAN.request primitive when the channel congestion indicator indicates that the channel is congested, generating a MLME-SCAN.change confirm primitive to confirm the change of the scanning type parameter included in the MLME-SCAN.request primitive as a response of the MLME-SCAN.change request primitive, and performing a passive scanning for the target AP based on the MLME-SCAN.change confirm primitive.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A method of switching a radio resource mode allocated to a mobile station in a wireless access system is discussed. The method for switching the radio-resource mode allocated to a mobile station in the wireless access system includes, transmitting a first message comprising Carrier to Interference and Noise Ratio (CINR) information of a second radio-resource mode to a base station for requesting a switching from a first radio-resource mode allocated to the mobile station to the second radio-resource mode; and transmitting a predetermined codeword for indicating that the switching from the first radio-resource mode to the second radio-resource mode has not been normally performed, if a second message approving the switching of the radio-resource mode is not received within a predetermined time.

Abstract: A method for transmitting information of a network interworking with a wireless LAN (802.11, Wi-Fi) network or EMID (ESS MAC ID) provided from an EMID server to a wireless user equipment if the wireless user equipment accesses the wireless LAN network is disclosed. A wireless communication system which performs communication using a plurality of subcarriers includes at least one access point receiving messages from at least one wireless user equipment and communicating with another access point through a distribution system, and at least one interworking information broker receiving information request message of subscriber service provider network (SSPN) through interface with the at least one access point and acquiring response information corresponding to the information request message through interface with a network entity which includes information of the SSPN, the information request message of the SSPN being transmitted from the wireless user equipment to the at least one access point.

Abstract: 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.

Abstract: 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.

Abstract: 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).

Abstract: 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.

Abstract: A method and apparatus for communication using multiple carriers is provided. A mobile station receives information regarding at least one assigned carrier selected from the available carriers based on the multiple carrier capability from a base station. The mobile station activates or inactivates the at least one assigned carrier by receiving a message comprising information indicating activation or inactivation of the at least one assigned carrier from the base station. Signaling overhead for managing multiple carriers may be reduced.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A method of switching a radio resource mode allocated to a mobile station in a wireless access system is discussed. The method for switching the radio-resource mode allocated to a mobile station in the wireless access system includes, transmitting a first message comprising Carrier to Interference and Noise Ratio (CINR) information of a second radio-resource mode to a base station for requesting a switching from a first radio-resource mode allocated to the mobile station to the second radio-resource mode; and transmitting a predetermined codeword for indicating that the switching from the first radio-resource mode to the second radio-resource mode has not been normally performed, if a second message approving the switching of the radio-resource mode is not received within a predetermined time.

Abstract: A method for updating system information in a broadband wireless communication system includes: receiving information 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 an 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 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, when a difference exists between the received CC and the stored CC; and decoding and updating corresponding SP IE of the S-SFH based on the checking result.

Abstract: A method for commanding and performing network entry is disclosed. The method for commanding network entry using a non-periodic message in a Base Station (BS) includes broadcasting a first pattern indicating ready for restart once or more times to a Mobile Station (MS), when the BS determines to restart due to a serious error of the BS, and performing a restart procedure, and broadcasting a second pattern indicating network entry to the MS, upon completion of the restart procedure.

Abstract: 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.

Abstract: 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.