摘要:
A method and apparatus generate a group service flow in a mobile communication system. An Advanced Mobile Station (AMS) in a mobile communication system transmits an AAI_REG-REQ message, which includes a group service request indicator indicating that it is required to generate the group service flow, to an ABS. The AMS receives an AAI REG-RSP message and an AAI_DSA-REQ message, which includes at least one of a group service flow parameter for the group service flow, a multicasting Station Identifier (STID), a multicasting flow ID, a group service flow ID, and information indicating a use of the group service flow, from the ABS. The AMS then generates the group service flow in cooperation with the ABS in accordance with the AAI_DSA-REQ message.
摘要:
A method and apparatus generate a group service flow in a mobile communication system. An Advanced Mobile Station (AMS) in a mobile communication system transmits an AAI_REG-REQ message, which includes a group service request indicator indicating that it is required to generate the group service flow, to an ABS. The AMS receives an AAI_REG-RSP message and an AAI_DSA-REQ message, which includes at least one of a group service flow parameter for the group service flow, a multicasting Station Identifier (STID), a multicasting flow ID, a group service flow ID, and information indicating a use of the group service flow, from the ABS. The AMS then generates the group service flow in cooperation with the ABS in accordance with the AAI_DSA-REQ message.
摘要:
Disclosed is a method for allocating a safety channel in a wireless communication system which divides a full frequency band into a plurality of subcarrier bands and includes subchannels, each of which is a set of a predetermined number of subbands, each of which is a set of a predetermined number of contiguous subcarriers, where the subchannels include a safety subchannel allocated to particular subscriber stations (SSs), which is unused in a neighbor base station. The method comprises the steps of: transmitting, by the SS, its channel quality information to the base station (BS) when a channel quality of a subchannel allocated to the SS is less than to predetermined reference channel quality; and allocating a safety subchannel to the SS, by the BS upon receiving the channel quality information indicating that the channel quality of the subchannel is less than to the reference channel quality.
摘要:
A method for allocating a band Adaptive Modulation and Coding (AMC) channel in a wireless communication system that divides a full frequency band into a plurality of subcarrier bands and includes subchannels, each of which is a set of a predetermined number of neighbor subcarrier bands. Upon recognizing a need for a band AMC channel, a subscriber station (SS) sends a request for allocation of the band AMC channel to a base station (BS). Upon receiving the band AMC channel allocation request, the BS determines if it can allocate the band AMC channel requested by the SS, considering a resource situation of the BS, and transmits information on the determination to the SS.
摘要:
A method for allocating a band Adaptive Modulation and Coding (AMC) channel in a wireless communication system that divides a full frequency band into a plurality of subcarrier bands and includes subchannels, each of which is a set of a predetermined number of neighbor subcarrier bands. Upon recognizing a need for a band AMC channel, a subscriber station (SS) sends a request for allocation of the band AMC channel to a base station (BS). Upon receiving the band AMC channel allocation request, the BS determines if it can allocate the band AMC channel requested by the SS, considering a resource situation of the BS, and transmits information on the determination to the SS.
摘要:
A method and an apparatus for providing preamble information in a wireless communication system are provided. The method of a Base Station (BS) of a first system for providing neighbor BS information of a second system in a communication environment covering the first system and the second system together includes generating a message comprising information indicating a superframe boundary of a neighbor BS of the second system, and transmitting the message comprising the information indicating the superframe boundary to a Mobile Station (MS).
摘要:
An apparatus and a method for supporting multicast communication in a broadband wireless access system are provided. A method of a Mobile Station (MS) for supporting multicast communication in a wireless access system includes acquiring decoding parameters by receiving an Advanced Air Interface Enhanced-Multicast and Broadcast Service configuration (AAI-E-MBS_CFG) message from a Base Station (BS), establishing an E-MBS service flow by sending and receiving AAI Dynamic Service Addition-request/response (AAI_DSA-REQ/RSP) messages to and from the BS, and decoding E-MBS MAP received from the BS through the established E-MBS service flow using the acquired decoding parameters. The E-MBS MAP includes information for decoding multicast bursts.
摘要:
Disclosed is a method for enabling a mobile station existing in a serving cell area to perform a handover procedure in a broadband mobile communication system including the mobile station, a serving base station providing a service to the mobile station, and one or more target base stations containing at least one target cell area overlapping with the serving cell area occupied by the serving base station. The method includes transmitting a handover request message from the mobile station to the serving base station when it is detected that a performance of a handover is necessary; and transmitting a handover indication message containing handover cancel information to the serving base station when the mobile station determines a cancel of the handover while the mobile station is being handed over to one or more target base stations by the serving base station.
摘要:
Disclosed are an apparatus and method of a Relay Station (RS) in a multihop relay Broadband Wireless Access (BWA) communication system. The method includes an RS for receiving a signal level threshold of the MS from a Base Station (BS), measuring a signal level of the MS, and transmitting the MS signal level to the BS when the measured signal level is greater than the signal level threshold; and the BS for transmitting the MS signal level threshold to one or more RSs and receiving MS signal levels from the RSs.
摘要:
A system and method for periodic ranging in sleep mode in a communication system are provided, in which an MS is allocated an uplink burst from a BS and transmits a first message in the allocated uplink burst to the BS, the first message indicating that the MS is alive during sleep mode.