An access system and method for orthogonal frequency division multiplexing of wireless transfer communication
A communication system and wireless communication technology, applied in the field of wireless relay communication OFDM access system, can solve the problems of complex structure, poor frequency diversity effect, high cost, etc.
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[0121] The present invention provides a wireless relay communication OFDM access system and method. The advanced relay communication mode of RS, BS and MS / SS provided by the present invention, as shown in FIG. 5, RS and BS, MS / SS The communication between SS adopts FDD / TDM / OFDMA mode, BS downlink and RS uplink use frequency f1, BS uplink and RS downlink use frequency f2; RS only needs a set of FDD wireless transceiver, RS accesses BS as a MS / SS, MS / SS performs wireless relay access to BS through RS.
[0122] In Figure 5, DL BS It is the downlink subframe of the physical layer frame of BS, from BS to SS / MS BS or RS, UL BS is the uplink subframe of the physical layer frame of the BS, by the SS / MS BS or RS to BS, SS / MS BS Keep sending and receiving frame synchronization with BS; DL RS It is the downlink subframe of the physical layer frame of RS, from BS to SS / MS RS or RS, UL RS It is the uplink subframe of the physical layer frame of the RS, which is determined by the SS...
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