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:
Aug. 30, 2011
Filed:
May. 30, 2008
Method and system for a reliable relay-associated and opportunistic cooperative transmission schemes
Dandan Wang, Richardson, TX (US);
Chia-chin Chong, Santa Clara, CA (US);
Ismail Guvenc, Santa Clara, CA (US);
Fujio Watanabe, Union City, CA (US);
Dandan Wang, Richardson, TX (US);
Chia-Chin Chong, Santa Clara, CA (US);
Ismail Guvenc, Santa Clara, CA (US);
Fujio Watanabe, Union City, CA (US);
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
A base station (BS) communicates with a mobile station (MS) through relay stations (RSs). In one exemplary reliable relay-associated transmission scheme, the BS transmits data to the RSs using multicast or unicast. From the received packets, each RS calculates its reliability value according to a reliability function, which it informs the MS. The BS then generates a reliability metric to identify the RSs that are considered reliable. The reliable RSs transmit their information to the MS under a cooperative multicast transmission mode. Meanwhile, the unreliable RSs overhear the transmissions between the reliable RSs and the target MS. If the MS is unable to receive information from reliable RSs, the unreliable RSs can join the cooperative transmission to provide a higher cooperative diversity gain to the target MS.