Interference processing method, related equipment and interference processing system

Abstract

The present invention provides an interference processing method, related equipment, and an interference processing system. The method includes that the base station sends the cell wireless network temporary identifier C-RNTI of the second terminal to the first terminal, and the first terminal and the second terminal communicate with each other. The relationship between the two terminals is a pairing relationship, and the C-RNTI of the second terminal is used to enable the The first terminal obtains the first DCI of the second terminal according to the C-RNTI of the second terminal, and the first DCI carries the scheduling information of the second terminal, and the first terminal can obtain the first DCI according to the The scheduling information included in the first DCI cancels the signal of the second terminal, thereby effectively avoiding the interference caused by the signal of the second terminal to the first terminal.

Description

technical field [0001] The present invention relates to the communication field, in particular to an interference processing method, related equipment and an interference processing system. Background technique [0002] In the non-orthogonal multiple access (English full name: Non-orthogonal Multiple Access, English abbreviation: NOMA) method, the data of two or more different terminals in the same cell use the same time and frequency resources on the same antenna port Overlay with different power profiles. More specifically, low path loss (cell center) terminals are assigned lower power, and high path loss (cell edge) terminals are assigned higher power. [0003] In order for the low-path-loss terminal to perform interference cancellation, the base station sends the auxiliary information of the high-path-loss terminal to the low-path-loss terminal through radio resource control signaling RRC, wherein the auxiliary information of the high-path-loss terminal is for the low-p...

AI Technical Summary

Problems solved by technology

[0004] The base station transmits the auxiliary information of the high-path loss terminal through RRC signaling, which will make the update speed of the auxiliary information of the high-path-loss terminal relatively slow, which means that the frequency of updating the auxiliary information of the high-path-loss terminal will be greatly limited

Some static and semi-static parameters in the auxiliary information of high path loss terminals will not be affected, but some dynamic parameters in the auxiliary information of high path loss terminals, such as modulation and coding strategy (English full name: Modulation and Coding Scheme, English abbreviation: MCS), RRC signaling obviously cannot meet the flexibility needs, and there is no feasible blind detection scheme to make up for it.

And even the paired high-path-loss terminals and low-path-loss terminals still need to adjust the subframe level to determine whether to perform multi-user scheduling, and RRC signaling is difficult to meet such requirements, for example, in different subframes In some cases, there is joint scheduling of high-path-loss terminals and low-path-loss terminals, and in some cases, only one low-path-loss terminal is scheduled, and the base station needs dozens or even hundreds of subframes to send RRC signaling, which will make The low path loss terminal cannot accurately determine the scheduling situation of each subframe of the high path loss terminal, which makes it impossible for the low path loss terminal to eliminate the interference of the high path loss terminal at the subframe level

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