NAICS method, device, system and related equipment

Abstract

Disclosed are a method, device, system and correlative equipment for network assisted interference cancellation, which perform network assisted interference cancellation on the basis of current physical configuration of the terminal. The first network assisted interference cancellation method includes: receiving network assisted interference cancellation (NAICS) capability information reported by the user equipment (UE); issuing a NAICS assisted signaling to the UE according to the NAICS capability information and / or interference information of a neighboring base station. The second network assisted interference cancellation method includes: dividing a transmission mode (TM) into N TM subsets, wherein each TM subset includes at least one sort of TM and N is a natural number; informing the neighboring base station of the TM subset scheduled for interfering user equipment (UE), wherein the interfering UE includes the UE located at the edge of the coverage area of the neighboring base station and the informed TM subset does not include a TM with high complexity.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method, device, system and related equipment for network-assisted interference cancellation. Background technique [0002] Network-assisted interference cancellation means that the terminal is equipped with an advanced receiver, and uses the interference information notified by the network side, combined with its own blind detection, to effectively delete interference to improve reception performance. [0003] Respectively as figure 1 and figure 2 As shown, among them, figure 1 It is a schematic diagram of inter-cell interference. figure 2 Removed schematic for network-assisted interference. In order to effectively cancel the interference, the auxiliary information that the terminal needs to obtain from the network side includes the following two types: one is cell-level (Cell-specific) auxiliary information, including system bandwidth, synchronizat...

AI Technical Summary

Problems solved by technology

At the same time, due to the flexibility of scheduling by the interfering base station, the interfering users allocated on each PRB (Physical Resource Block, PhysicalResourceBlock) are dynamic, so the TM of the interfering users is also dynamically changing. Considering the delay and overhead issues, therefore, also It is not suitable to obtain by means of high-level signaling notification

However, if the terminal is obtained through blind detection, on the one hand, the terminal hardware configuration needs to be able to support blind detection of all transmission modes, which increases the cost of terminal hardware configuration, and the base station schedules TM4, especially the four CRS port transmission modes in TM4. The complex transmission mode is only a small part of the many transmission modes. If the terminal is required to support blind detection of all transmission modes, it will cause a waste of terminal capabilities.

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