Intermediate-transferring system and method for allocating and scheduling band width

Abstract

The method is used for adding a new information unit into the control message of downlink sub-frame of base station physical layer frame structure; the newly-added information unit is used for indicating each boosting location of the relevant connection of user station / mobile user station relayed by relay station. It comprises the following step: the user station / mobile station initiates a bandwidth request that is transmitted to the base station through relay station; according to the request message the base station makes bandwidth allocation and scheduling, and generates a control message containing a newly-added information unit; the base station sends the control message to the user station / mobile user station and grants the bandwidth.

Description

technical field [0001] The present invention relates to mobile communication technology, in particular to broadband wireless access technology, specifically a transfer system and bandwidth allocation and scheduling method. Background technique [0002] IEEE802.16 is the first broadband wireless access standard. In the 802.16 standard, data is transmitted on the physical channel in frame format, and each frame includes a downlink subframe (DL subframe) and an uplink subframe (UL subframe); 802.16 supports a variety of physical layer specifications, such as single carrier (SC), positive Cross Frequency Division Multiplexing (OFDM), Orthogonal Frequency Division Multiplexing Access (OFDMA) and supports Time Division Duplex (TDD) and Frequency Division Duplex (FDD) modes. In TDD mode, downlink subframes are transmitted first, followed by uplink subframes. TTG and RTG will be inserted when the uplink and downlink subframes alternate to allow a period of time for the BS to comple...

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Problems solved by technology

[0014] At present, the 802.16 multi-hop relay research group has proposed the concept of WiMAX relay station (RS), which consists of SS / MSS, RS and BS to form a BWA relay system; through RS, BS (base station) and SS / MSS (subscriber station / mobile subscriber station) Transit between BSs to expand the coverage of BSs, but IEEE802.16 only defines two types of network elements, SS and BS, so the existing bandwidth allocation and bandwidth scheduling methods between BSs and SSs are not suitable for solving the BWA transit system, SS / MSS bandwidth request and BS and RS bandwidth allocation and scheduling, the SS relayed by RS in the BWA transit system cannot receive and send data according to the original DL-MAP message and UL-MAP message issued by the BS / management signaling

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