CBM Patent Consulting, LLC
Echo cancelling system and method for On Channel Repeater used for coverage gap filling
An echo cancelling system and method for On Channel Repeater (OCR) used for coverage gap filling, which includes: a splitter, an echo cancellation module, a down-conversion module and a digital signal processor (DSP) module, which uses digital signal processing technologies to achieve a precise echo detection/estimation, and to cancel sufficient part of the echoes in analog domain. The invention may also remove residual echoes in digital domain as well, which is considered to be only a great supplement of the echo cancellation operation in analog domain.
ANYWAVE COMMUNICATION TECHNOLOGIES CO., LTD.
H H
H04B H04B
inventional inventional
Wenhua Jingsong Yingying Hongjun Bowei
Li Xia Fan Li Song