Method and terminal device for self-interference estimation

A terminal equipment and self-interference technology, which is applied in the field of self-interference estimation, can solve problems such as reducing the communication performance of terminal equipment, and achieve the effect of improving communication performance
CN110731053AActive Publication Date: 2020-01-24GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
Publication Date
2020-01-24

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Abstract

The embodiment of the invention relates to a method and a terminal device for self-interference estimation. The method comprises the steps that the terminal device obtains a self-interference signal estimated for the ith time according to a received signal and an uplink signal, the received signal comprises the self-interference signal and a downlink signal received by the terminal device, the uplink signal carries self-interference information, i is a positive integer, and i is a value from 1 and is increased progressively according to 1; the terminal device determines a downlink signal estimated for the ith time based on the received signal and the self-interference signal estimated for the ith time; the terminal device judges whether the ith residual signal is converged to the background noise or not, and determines whether the self-interference signal estimated for the ith time is an expected self-interference signal, wherein the ith residual signal is the difference between the received signal and the received signal estimated for the ith time, and the received signal estimated for the ith time is the sum of the self-interference signal estimated for the ith time and the downlink signal estimated for the ith time. According to the self-interference estimation method and the terminal device provided by the embodiment of the invention, self-interference can be suppressed.
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Description

technical field

[0001] The present application relates to the communication field, and in particular to a self-interference estimation method and terminal equipment. Background technique

[0002] At present, 5G has been developed to the deployment stage. Regarding the deployment of 5G networks, there are currently two solutions in the industry, namely Standalone (SA) architecture and Non-standalone (Non-standalone, NSA) architecture. If the 5G network is deployed according to the NSA architecture, the terminal equipment is required to support the dual connection technology of connecting 4G and 5G at the same time. The terminal equipment can use dual antennas to connect to the 4G and 5G networks at the same time and perform dual reception and dual transmission. At this time, the signal generated or transmitted inside the terminal device will generate self-interference to the downlink signal received at the same time, and the generation of self-interference will reduce the com...

Claims

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