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. 13, 2010
Filed:
Oct. 02, 2008
Eko Onggosanusi, Allen, TX (US);
Yan Hui, San Diego, CA (US);
Anand Dabak, Plano, TX (US);
Gibong Jeong, Seoul, KR;
Eko Onggosanusi, Allen, TX (US);
Yan Hui, San Diego, CA (US);
Anand Dabak, Plano, TX (US);
Gibong Jeong, Seoul, KR;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A Hybrid Automatic Retransmission Request (H-ARQ) technique is provided for Multi-Input Multi-Output (MIMO) systems. The technique changes the basis (V) upon retransmission, which helps reduce the error probability upon retransmission. This basis hopping technique provides for improved performance gain without significant increase in design complexity. In one embodiment, communication device () includes a receiver section () for receiving an acknowledgment (ACK) or a non-acknowledgment (NACK) signal in response to information transmitted by the transmitter section of the communication device. If a NACK is received, a new basis is selected from a set of basis stored in a basis set unit (). The new basis that is selected is then used by a linear transformation unit () in the retransmission of the information.