Patent Number: 7,826,801

Title: Adaptive forward error corrector and method thereof, and TDD radio repeating apparatus using the same

Abstract: An adaptive feedback estimation and cancellation (AFEC) apparatus includes: a controller for generating and outputting control information by using a synchronization signal from an external synchronization acquisition unit and base station information, in order to remove a feedback signal that exists in a forward/reverse repeater signal to be repeated and then send the forward/reverse repeater signal; a first feedback prediction canceller for adaptively removing a feedback signal that exists in the forward repeater signal based on the control information from the controller and automatically adjusting the gain of the forward repeater signal; and a second feedback prediction canceller for adaptively removing a feedback signal that exists in the reverse repeater signal based on the control information from the controller and automatically controlling the gain of the reverse repeater signal.

Inventors: Baik; Sung-Jun (Daegu, KR), Chang; Byung-Soo (Gyeonggi-do, KR), Lee; Seong-Choon (Seoul, KR), Ryoo; Kyoo-Tae (Gyeonggi-do, KR), Kim; Jeong-Hwi (Seoul, KR), Lee; Jong-Sik (Seoul, KR)

Assignee: Airpoint

International Classification: H04B 1/00 (20060101)

Expiration Date: 2019-11-02 0:00:00