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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.:

US 11937297 B1

PDFFull Text
Date of Patent:
Mar. 19, 2024

Filed:

Jul. 20, 2021

Asynchronous spatial lbt

Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventors:

Yisheng Xue, San Diego, CA (US);

Xiaoxia Zhang, San Diego, CA (US);

Siddhartha Mallik, San Diego, CA (US);

Aleksandar Damnjanovic, Del Mar, CA (US);

Assignee:

QUALCOMM Incorporated, San Diego, CA (US);

Attorney:

Norton Rose Fulbright US LLP

Primary Examiner:

Sharad Rampuria

Int. Cl.
CPC ...
H04W 74/08 (2009.01); B30B 11/18 (2006.01); B31B 70/64 (2017.01); B31B 70/81 (2017.01); B31B 70/88 (2017.01); B31B 155/00 (2017.01); B31B 160/10 (2017.01); B31B 170/30 (2017.01); B32B 3/10 (2006.01); B32B 3/28 (2006.01); B32B 7/12 (2006.01); B32B 37/10 (2006.01); B32B 38/00 (2006.01); H04B 7/0413 (2017.01); H04B 7/0452 (2017.01); H04B 7/06 (2006.01); H04L 5/00 (2006.01); H04W 16/14 (2009.01); H04W 72/044 (2023.01);
U.S. Cl.
CPC ...
H04W 74/0808 (2013.01); B30B 11/18 (2013.01); B31B 70/645 (2017.08); B31B 70/8135 (2017.08); B31B 70/88 (2017.08); B32B 3/10 (2013.01); B32B 3/28 (2013.01); B32B 7/12 (2013.01); B32B 37/1045 (2013.01); B32B 38/0012 (2013.01); H04B 7/0413 (2013.01); H04B 7/0452 (2013.01); H04B 7/0617 (2013.01); H04L 5/00 (2013.01); H04W 16/14 (2013.01); H04W 72/046 (2013.01); H04W 74/0816 (2013.01); B31B 2155/0014 (2017.08); B31B 2155/002 (2017.08); B31B 2160/10 (2017.08); B31B 2170/30 (2017.08);
Abstract

Improvements to asynchronous spatial listen before talk (LBT) procedures are disclosed. In a shared spectrum network spatial LBT procedures are used for directionally targeting the channel reservation process. Prior to transmitting channel reservation signaling, the transmitter and receiver determine an effective interference considering available multiple input, multiple output (MIMO) configuration information. When the effective interference exceeds a predefined threshold, the node may without transmission of its channel reservation signal. Otherwise, when the effective interference remains within the threshold, each node's transmitted channel reservation signal may also identify at least a beamforming matrix either as payload or used to precode the node's channel reservation signal.

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