| US 7,596,352 B2 | ||
| Apparatus and method for channel estimation and echo cancellation in a wireless repeater | ||
| Yinong Ding, Plano, Tex. (US); Cornelius Van Rensburg, Dallas, Tex. (US); and Joseph R. Cleveland, Murphy, Tex. (US) | ||
| Assigned to Samsung Electronics Co., Ltd., Suwon-si (Korea, Republic of) | ||
| Filed on Jun. 06, 2005, as Appl. No. 11/145,619. | ||
| Claims priority of provisional application 60/603734, filed on Aug. 23, 2004. | ||
| Claims priority of provisional application 60/603735, filed on Aug. 23, 2004. | ||
| Prior Publication US 2006/0040611 A1, Feb. 23, 2006 | ||
| Int. Cl. H04Q 7/20 (2006.01) | ||
| U.S. Cl. 455—11.1 [455/7; 455/24; 455/12.1; 455/13.1; 370/315; 370/318; 370/322; 370/328; 370/316] | 20 Claims |
| 1. For use in a wireless network, a repeater with improved echo cancellation, comprising:
an input radio control element having a receiving antenna and an output radio control element having a transmitting antenna;
a power amplifier connected between the input radio control element and the output radio control element; and
a signal processing unit connected between the input radio control element and the output radio control element, the signal
processing unit configured to estimate the communication channel from the transmitting antenna to the receiving antenna to
produce a channel estimation, the signal processing unit further configured to perform echo cancellation based on the channel
estimation.
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