A tdd communication method
A communication method and signal technology, applied in the field of TDD communication, can solve the problems of low system capacity and long communication coverage distance, and achieve the effects of ensuring communication distance, increasing received power, and increasing uplink user capacity
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[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0025] The duplex mode of the communication method of the present invention adopts TDD, the transmission of the downlink cycle and the uplink cycle are carried out alternately, and the working bandwidth is B, specifically, 200kHz. Downlink, the signal occupies the entire bandwidth B. Uplink, from node to base station, adopts narrowband single-carrier communication technology, each channel bandwidth is B C , the entire bandwidth B is divided into C≤B / B C channels. The end point of the downlink communication time is taken as the starting point (time 0), and S=T is divided u / T slot time slots, nodes can be in the time interval 0 to T u Start sending a signal at any time slot between, T slot is the slot period, typically T u 100ms, typical T slot 0.25ms, typical S is 400.
[0026] In this embodiment, a node is configured with on...
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