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:
Nov. 08, 2016
Filed:
Jan. 20, 2014
Broadcom Corporation, Irvine, CA (US);
Other;
Abstract
A double structured codebook is described that has a wideband codebook portion C(W) and a frequency-selective codebook portion C(W). Portion C(W) is characterised in that for at least one rank index RI, each codeword of C(W) is uniquely distinguished over all other codewords of C(W) by at least two beam selection vectors per layer. A device (UE, eNB, etc) utilises the at least two different beam selection 10 vectors per layer to uniquely select a codeword Wfrom C(W) (); and constructs a pre-coder W from the selected codeword Wand from another codeword Wselected from the wideband codebook portion C(W) for signalling channel conditions (). An additional co-phasing term for ensuring orthogonality can be utilised with the beam selection vectors per layer to uniquely select the codeword from C(W), and the two different beam selection vectors per layer correspond to different polarizations ().