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.

Date of Patent:
Jun. 14, 2016

Filed:

Feb. 21, 2013
Applicant:

Blackberry Limited, Waterloo, CA;

Inventors:

Vahid Pourahmadi, Ottawa, CA;

Hua Xu, Ottawa, CA;

Siva Dharshan Muruganathan, Stittsville, CA;

Yongkang Jia, Ottawa, CA;

Shiwei Gao, Nepean, CA;

Yi Song, Plano, TX (US);

Robert Mark Harrsion, Grapevine, TX (US);

Assignee:

BlackBerry Limited, Waterloo, Ontario, CA;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 72/08 (2009.01); H04L 5/00 (2006.01); H04L 27/26 (2006.01); H04L 25/02 (2006.01); H04J 13/18 (2011.01); H04J 11/00 (2006.01);
U.S. Cl.
CPC ...
H04L 5/0053 (2013.01); H04L 5/0051 (2013.01); H04L 27/2613 (2013.01); H04J 11/00 (2013.01); H04J 13/18 (2013.01); H04L 5/0007 (2013.01); H04L 25/0226 (2013.01);
Abstract

A method for communication in a wireless communications network is provided. The method comprises: transmitting, by a network element in a first cell, a first DMRS on a first DMRS port; transmitting, by the network element, a first PDSCH on the first DMRS port; and transmitting, by the network, information indicating that the first DMRS port is used to transmit the first PDSCH, and information about a second DMRS port that is not used to transmit the first PDSCH but is used to transmit a second DMRS, wherein the first DMRS and the second DMRS are orthogonal to one another.


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