The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 21, 2012
Filed:
Mar. 01, 2011
Jun Zheng, LaJolla, CA (US);
Chengjin Zhang, LaJolla, CA (US);
Severine Catreux-erceg, Cardiff, CA (US);
Vinko Erceg, Cardiff, CA (US);
Pieter Roux, San Diego, CA (US);
Pieter Van Rooyen, San Diego, CA (US);
Jun Zheng, LaJolla, CA (US);
Chengjin Zhang, LaJolla, CA (US);
Severine Catreux-Erceg, Cardiff, CA (US);
Vinko Erceg, Cardiff, CA (US);
Pieter Roux, San Diego, CA (US);
Pieter van Rooyen, San Diego, CA (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
A method and system for a double search algorithm of user group selection for multiuser MIMO downlink transmission are provided. The use of optimal brute-force user group selection may require high computational expense. A first search operation may be based on a first user having a channel gain greater than that of other users, while a second search operation may be based on a second user having a channel gain greater than that of the remaining users. A maximized system capacity may be determined based on the maximized system capacities determined in the first and second search loop. A receiver pair associated with the maximized system capacity may be selected as the user group. The double search algorithm may reduce the computational complexity while achieving performances that may exceed the TDMA scheme and be similar to that of systems with ideal CSI at the transmitter.