US 9,813,092 B2
Signal processing method and apparatus
Meng Cai, Chengdu (CN); Kun Li, Chengdu (CN); Hongli Jiang, Chengdu (CN); and Yu Liu, Chengdu (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Sep. 9, 2016, as Appl. No. 15/261,289.
Application 15/261,289 is a continuation of application No. PCT/CN2014/073210, filed on Mar. 11, 2014.
Prior Publication US 2016/0380659 A1, Dec. 29, 2016
Int. Cl. H04B 1/04 (2006.01); H04B 1/10 (2006.01); H04J 11/00 (2006.01); H04B 1/76 (2006.01); H04L 5/00 (2006.01); H04B 7/04 (2017.01)
CPC H04B 1/1027 (2013.01) [H04B 1/76 (2013.01); H04B 7/04 (2013.01); H04J 11/004 (2013.01); H04J 11/005 (2013.01); H04L 5/0073 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A signal processing method, comprising:
receiving, by a first signal processing apparatus, a mixed signal;
acquiring, by the first signal processing apparatus, an energy strength ratio according to the mixed signal, wherein the energy strength ratio comprises a ratio of energy strength of a signal sent by a first signal source and received by the first signal processing apparatus to energy strength of a signal sent by a second signal source and received by the first signal processing apparatus;
in response to determining that the energy strength ratio is less than a first preset threshold, using, by the first signal processing apparatus, the signal sent by the second signal source as an interference signal, and separating the interference signal from the mixed signal; and
determining that a signal obtained after separating the interference signal from the mixed signal is a desired signal sent by the first signal source;
wherein the acquiring, by the first signal processing apparatus, the energy strength ratio according to the mixed signal comprises:
acquiring, by the first signal processing apparatus, energy strength of the mixed signal;
acquiring, by the first signal processing apparatus, an isolation of the first signal processing apparatus relative to a second signal processing apparatus, wherein the second signal processing apparatus is a processing apparatus that acquires a desired signal sent by the second signal source;
acquiring, by the first signal processing apparatus, energy strength of a desired reference signal corresponding to the second signal source, wherein the desired reference signal corresponding to the second signal source is a signal obtained after coding and modulation processing is performed on the desired signal sent by the second signal source;
calculating, by the first signal processing apparatus according to the energy strength of the mixed signal, the isolation, and the energy strength of the desired reference signal corresponding to the second signal source, the energy strength of the signal sent by the first signal source and received by the first signal processing apparatus and the energy strength of the signal sent by the second signal source and received by the first signal processing apparatus; and
calculating, by the first signal processing apparatus, the ratio of the energy strength of the signal sent by the first signal source and received by the first signal processing apparatus to the energy strength of the signal sent by the second signal source and received by the first signal processing apparatus.