Invention Grant
- Patent Title: Noise variance estimation circuit and method for wireless communication
-
Application No.: US15361339Application Date: 2016-11-25
-
Publication No.: US09859929B2Publication Date: 2018-01-02
- Inventor: Jyun-Wei Pu , Chung-Yao Chang
- Applicant: REALTEK SEMICONDUCTOR CORPORATION
- Applicant Address: TW Hsinchu
- Assignee: REALTEK SEMICONDUCTOR CORPORATION
- Current Assignee: REALTEK SEMICONDUCTOR CORPORATION
- Current Assignee Address: TW Hsinchu
- Agency: WPAT, P.C., Intellectual Property Attorneys
- Agent Anthony King
- Priority: TW105101528A 20160119
- Main IPC: H04B1/10
- IPC: H04B1/10

Abstract:
The present invention includes a noise variance estimation circuit for wireless communication. An embodiment of the noise variance estimation circuit includes: a first estimation unit operable to generate a first estimation signal according to a reception signal and a reference signal in which the reception signal is derived from the equivalent of the reference signal; a first noise reduction unit operable to generate a first noise reduction signal by performing a first noise reduction process to the first estimation signal; a second estimation unit operable to generate a second estimation signal according to the difference between the first estimation signal and the first noise reduction signal; and a second noise reduction unit operable to execute a noise reduction adjustment according to the second estimation signal and perform a second noise reduction process to the first estimation signal in which the noise reduction adjustment affects the second noise reduction process.
Public/Granted literature
- US20170207804A1 Noise variance estimation circuit and method for wireless communication Public/Granted day:2017-07-20
Information query