Synchronous HARQ-based method and device for preventing signal interference in wireless relay network
A technology of wireless relay network and signal interference, applied in the direction of radio relay system, wireless communication, network planning, etc., can solve the problem of self-interference at the relay device 1, preconditions are difficult to be well satisfied, and interference is not considered and other issues to achieve low cost, improve resource utilization and system performance, and avoid self-interference
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[0031] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0032] understandably, in Figure 2a-2band subsequent signal flow schematic diagrams, although only one uplink HARQ process between the relay device 1 and the mobile terminal 2 is shown, those skilled in the art understand that the mobile terminal 2 and the relay device 1 can simultaneously There are other HARQ processes. For example, a downlink HARQ process occupies subframes 1, 5, 9... shown in Fig. 2 . Since in the frequency division system taking LTEA as an example, the uplink frequency band and the downlink frequency band have enough guard intervals, therefore, one subframe can be used for one uplink HARQ process and one downlink HARQ process at the same time without causing relay Self-interference at the device. In view of this, in this paper, the uplink synchronous HARQ process based on the synchronous HARQ technology will be discuss...
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