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. 10, 2011
Filed:
Mar. 29, 2006
Ayako Horiuchi, Kanagawa, JP;
Kenichi Miyoshi, Kanagawa, JP;
Hiroaki Morino, Tokyo, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A wireless communication method capable of preventing reduction of the throughput. According to this wireless communication method, in a frame (), a relay station () decides that the amount of delay to be Δt2 because the modulation scheme of a relayed signal is 16 QAM, while another relay station () decides that the delay amount be Δt4 because the modulation scheme of a relayed signal is QPSK. The relay station () transmits, at Δt2 of the frame (), the relayed signal, the modulation scheme of which is 16 QAM, to abase station. On the other hand, the relay station () detects, by Δt4, the fact that the relay station () transmitted the relayed signal at Δt2, and estimates, from the detected fact, that the modulation scheme used by the relay station () was 16 QAM. The relay station () then updates its modulation scheme from the initially established modulation scheme of QPSK to the same modulation scheme of 16 QAM as the relay station (), and modulates the relayed signal by use of 16 QAM and then transmits it to the base station.