| 摘要 |
A multi-hop wireless communication system, in which packets of data are transmitted over a connection between a base station (MR-BS) and a subscriber station (SS) via at least one relay station (RS) the packets of data being transmitted in accordance with one of a plurality of service classes each having a respective quality-of-service (QoS), and available bandwidth in the system being shared among a plurality of such connections in accordance with their service classes. To decrease the latency of bandwidth allocation in the system, and to support its scheduler algorithm, the RS has to know the QoS demands and the bandwidth allocating requirements of each connection. To achieve this, the MR-BS shares the QoS information with the RS after the MR-BS decides to approve a new connection. This may involve informing the RS, directly or indirectly, of timing information such as the time interval between successive bandwidth grants, data rate, throughput etc.. The RS then allocates bandwidth to the SS and/or performs its scheduler algorithm based on the known QoS parameters. The MR-BS can use an message or MAP IE to inform the QoS information to RS. Alternatively, the RS can snoop the messages between MR-BS and MS to determine the QoS information.
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