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:
Apr. 12, 2011
Filed:
Sep. 29, 2006
Zheng Zhao, Beijing, CN;
Jifeng LI, Yokohama, JP;
Zheng Zhao, Beijing, CN;
Jifeng Li, Yokohama, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A wireless communication apparatus in a closed loop communication wherein a channel resource can be shared among users and hence the capacity of the communication system can be increased. In this apparatus, calculating parts (and) calculate a first pre-code (α) and a second pre-code (β), respectively, from CSI fed back from a receiving wireless communication apparatus; an encoding part () includes multipliers (α), which multiply the first pre-code (α) by a first data and a second data to generate a first encoded data and a third encoded data, respectively, and also includes multipliers (β) that multiply the second pre-code (β) by the first data and the second data to generate a second encoded data and a fourth encoded data, respectively; spreading parts (-and-) spread the first and second encoded data with a first spreading code (c) to generate a first spread data and a second spread data, respectively; spreading parts (-and-) spread the third and fourth encoded data with a second spreading code (p) to generate a third spread data and a fourth spread data, respectively; an adding part () adds the first spread data and the third spread data together; and an adding part () adds the second spread data and the fourth spread data together.