A method for constructing system coexistence frame structure based on dynamic uplink and downlink

Abstract

The invention provides a system coexistence frame structure construction method based on dynamic uplink and downlink. The method comprises the following steps: acquiring transmission information of each first type of terminal; constructing a first type of frame based on each transmission information, wherein the first type of frame is a uniform frame used for data transmission between all the first type terminals and the base station, the first type of frame comprises a first sub-frame set, a second sub-frame set and a third sub-frame set, the first sub-frame set comprises a plurality of downlink sub-frames, the second sub-frame set comprises a plurality of uplink sub-frames, and the third sub-frame set comprises a plurality of low-power hardly blank sub-frames. According to the system coexistence frame structure construction method based on dynamic uplink and downlink, based on the transmission information of each first type of terminal, a candidate proportion value occupied by each sub-frame set in the first type of frame is determined, and the maximum value in the candidate proportion value is selected as the final value of the proportion of each sub-frame set in the first typeof frame, so that the uplink and downlink crosstalk of the mMTC and the HTC can be reduced, and the requirements of the uplink and downlink traffic of different networks can be met.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method for constructing a system coexistence frame structure based on dynamic uplink and downlink. Background technique [0002] Time Division Duplexing (Time Division Duplexing, TDD) distinguishes downlink (Downlink, DL) / uplink (Uplink, UL) signals in the dimension of time. The frequency arrangement of the TDD system is flexible, no paired frequency is required, and any fragmented frequency band can be used, which can better solve the contradiction of the current shortage of frequency resources. In addition, the TDD system has a high frequency spectrum utilization rate and a large system capacity, and is suitable for transmitting symmetric and asymmetric services with a large population density. [0003] In the prior art, Dynamic Time Division Duplexing (Dynamic Time Division Duplexing, D-TDD) allows each cell to individually configure its subframes to adapt to differe...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for constructing a system coexistence frame structure based on dynamic uplink and downlink, which solves the problem of interference in different transmission directions between cells in the network environment where mMTC and HTC coexist in the prior art, and the high complexity of the system question

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