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:
May. 19, 2009
Filed:
Aug. 23, 2004
Chang-soon Park, Chungju-si, KR;
Kwang-bok Lee, Seoul, KR;
Yung-soo Kim, Seoul, KR;
Jong-hyeuk Lee, Seongnam-si, KR;
Sung-jin Kim, Suwon-si, KR;
Chang-Soon Park, Chungju-si, KR;
Kwang-Bok Lee, Seoul, KR;
Yung-Soo Kim, Seoul, KR;
Jong-Hyeuk Lee, Seongnam-si, KR;
Sung-Jin Kim, Suwon-si, KR;
Abstract
Disclosed is a wireless communication apparatus and method for a multiple transmit and receive antenna system using multiple codes. In suggested detection algorithm, a successive interference cancellation (SIC) scheme is employed in both an antenna domain and a code domain by successively canceling multi-code interference (MCI). An effective transmit power allocation method suitable for the detection algorithm is suggested. Transmit power allocated to each code is calculated. The transmit power is determined as a simple ratio of power of a certain signal to power of a next code signal. Based on the calculated code transmit power, transmit power for each transmit antenna is allocated. Thus, information about transmit power calculated at a receive end is feedback to a transmit end through a feedback channel.