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:
Jun. 12, 2012
Filed:
Sep. 10, 2008
Jin Sam Kwak, Gyeonggi-do, KR;
Jinsoo Choi, Gyeonggi-do, KR;
Kiho Nam, Gyeonggi-do, KR;
Seung Woo Nam, Gyeonggi-do, KR;
Jin Sam Kwak, Gyeonggi-do, KR;
Jinsoo Choi, Gyeonggi-do, KR;
Kiho Nam, Gyeonggi-do, KR;
Seung Woo Nam, Gyeonggi-do, KR;
LG Electronics Inc., Seoul, KR;
Abstract
A wireless communication system using pilot subcarrier allocation and a method of allocating the pilot subcarriers for use in downlink and uplink communication in a multiple-input multiple-output (MIMO) antenna system using orthogonal frequency division multiplexing (OFDM) modulation are disclosed. The method includes providing a frame structure comprising OFDM symbols in time domain and subcarriers in frequency domain and alternately allocating first pilot subcarriers for a first antenna and second pilot subcarriers for a second antenna in the time and frequency domains, wherein each of the alternating first pilot subcarriers and the second pilot subcarriers is separated by a multiple of 9 subcarriers in the frequency domain and further allocated in two contiguous OFDM symbols.
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