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:
Dec. 10, 2019

Filed:

Jun. 05, 2017
Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventors:

Sridhar Ramanujam, San Diego, CA (US);

Xiaoxia Zhang, San Diego, CA (US);

Taesang Yoo, Riverside, CA (US);

Assignee:

QUALCOMM Incorporated, San Diego, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/26 (2006.01); H04J 3/06 (2006.01); H04L 5/00 (2006.01); H04L 25/02 (2006.01); H04L 27/28 (2006.01); H04W 72/12 (2009.01);
U.S. Cl.
CPC ...
H04L 27/2613 (2013.01); H04J 3/0605 (2013.01); H04L 5/005 (2013.01); H04L 5/0007 (2013.01); H04L 5/0016 (2013.01); H04L 5/0048 (2013.01); H04L 25/0202 (2013.01); H04L 25/0236 (2013.01); H04L 27/2611 (2013.01); H04L 27/28 (2013.01); H04W 72/121 (2013.01); H04L 25/0224 (2013.01);
Abstract

Methods, systems, and devices for wireless communication are described. A wireless communications system may support techniques for using non-staggered reference signals to increase the efficiency of the system and reduce the complexity of channel estimation. A base station may schedule a transmission to a user equipment (UE) including pilot tones mapped to a first symbol and a second symbol. In some cases, the pilot tones on the first and second symbols may be non-contiguous, and the base station may scramble the pilot tones on the first and second symbols according to the same scrambling sequence. In other cases, the pilot tones on the first and second symbols may be contiguous, and the pilot tones may be scrambled according to the same or different scrambling sequences. These techniques may result in reduced complexity for interference estimation and channel estimation at a UE.


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