摘要:
An apparatus and method for an admission control for a service flow in a broadband wireless access communication system using a multi-hop relay scheme is provided. In a method for operating a relay station in a broadband wireless communication system using a multi-hope relay scheme, a request message requesting an admission control decision for a service flow is received from an upper node. It is determined whether a requested QoS parameter set included in the request message is supportable. If the requested QoS parameter set is supportable, the request message is forwarded to a subordinate relay station corresponding to a next hop in a data transmission path. If the requested QoS parameter set is unsupportable, a response message indicating the unsupportability of the requested QoS parameter set is transmitted to a base station.
摘要:
A wireless multi-hop relay communication system includes a terminal for transmitting an Automatic Retransmission reQuest (ARQ) block of a Media Access Control (MAC) layer in an access link, an access link relay station for determining if there is an error in the ARQ block received on the access link and for sending the ARQ block to an upper node over a relay link when the ARQ block has no error, and a base station for determining if there is an error in the ARQ block received over the relay link.
摘要:
An apparatus and a method for processing the relayed data in a multihop relay broadband wireless access communication system are provided. A method for an operation of a Relay Station (RS) includes determining whether a packet received from an upper node comprises a Relay Media Access Control (MAC) Header (RMH), when the RMH is comprised in the received packet, determining whether the RMH comprises access RS information, and when the access RS information is not comprised in the RMH, removing the RMH from the received packet and transmitting the packet to a lower Mobile Station (MS).
摘要:
An apparatus and a method for processing a change of a preamble of a Relay Station (RS) are provided. An operating method of a Base Station (BS) includes providing a relay service via an RS, determining whether a preamble of the RS needs to change, when it is necessary to change the preamble of the RS, sending a preamble change command message to the RS and, when the preamble of the RS is changed, sending a preamble change notification message informing of the preamble change to at least one lower node of the RS.
摘要:
An apparatus and method for supporting a different system in a broadband wireless communication system using a multi-hop relay scheme are provided. A DownLink/UpLink (DL/UL) frame of a Base Station (BS) includes a legacy access zone for communicating with a legacy Mobile Station (MS), a relay zone for communicating with a legacy Relay Station (RS), and a new zone for communicating with a new MS. A DL/UL frame of an RS includes a legacy access zone for communicating with a legacy MS and a legacy relay zone for communicating with a new BS by legacy standards.
摘要:
A mobile station compliant with a legacy system and a mobile station compliant with a new system are both supported in a multihop relay broadband wireless communication system. A DownLink (DL) period of the Base Station (BS) includes a legacy zone for communicating with entities of a legacy system and a new zone for communicating with entities of a new system. Operations of the BS include transmitting DL data to entities of the legacy system via the legacy zone, and transmitting DL data to entities of the new system via the new zone which follows the legacy zone in a time axis.
摘要:
An apparatus and a method for data retransmission in a multihop relay wireless communication system are provided. The retransmission method includes determining whether an error is detected in data received from an upper node; generating a message indicative of the data error; and sending the message to the upper node at a time that is not appointed with the upper node. Therefore, it is possible to reduce a retransmission delay time that occurs during synchronous retransmission.
摘要:
A method and apparatus for supporting an idle mode of a Mobile Station (MS) in a superframe-based wireless communication system are provided. In a method for operating an MS to support an idle mode in a superframe-based wireless communication system, a paging listening interval is determined based on a Broadcast CHannel (BCH) information Transmit (TX) interval. BCH information including paging information is received during the paging listening interval. The inclusion/non-inclusion of a paging advertisement (MOB_PAG-ADV) message is detected based on the BCH information.
摘要:
Methods for operating a Base Station (BS) and a User Equipment (UE) in a wireless communication system using a primary frequency and one or more secondary frequencies, and apparatuses for the BS and UE for carry out the methods, are provided. The method for operating the BS includes determining whether to activate or deactivate at least one of the one or more secondary frequencies, and transmitting a message comprising a bitmap indicating the activation or deactivation of the at least one of the one or more secondary frequencies to the UE. The method for operating the US includes receiving a message comprising a bitmap indicating activation or deactivation of at least one of the one or more secondary frequencies from the BS, and activating or deactivating the at least one of the one or more secondary frequencies based on the received message.
摘要:
An apparatus and method for controlling sleep cycle synchronization of a sleep mode in a wireless communication system are provided. A method of operating a Mobile Station (MS) in a sleep mode state includes, if a traffic indication message and unicast data are not received during a listening window, transmitting one of a request message and a header to a Base Station (BS) to request a location of a next-scheduled listening window, and if a response for the one of the request message and the header is received, performing synchronization for a next sleep cycle.