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:
Sep. 15, 2026
Filed:
Feb. 25, 2021
Qualcomm Incorporated, San Diego, CA (US);
Ahmed Attia Abotabl, San Diego, CA (US);
Muhammad Sayed Khairy Abdelghaffar, San Jose, CA (US);
Krishna Kiran Mukkavilli, San Diego, CA (US);
Qualcomm Incorporated, San Diego, CA (US);
Abstract
Methods, systems, and devices for wireless communication are described. A communication device, which may be known as user equipment (UE), may determine a set of resources for a channel access procedure (e.g. a listen-before-talk (LBT) operation) in a shared radio frequency spectrum band. The set of resources may include one or more zero-power reference signal (ZP-RS) resources, one or more reserved channel access resources, or both. The UE may perform, while operating in a full duplex mode and during a duration in which the UE has not been scheduled to receive any downlink transmission, the channel access procedure on the set of resources for a channel in the shared radio frequency spectrum band. Based on the result of the channel access procedure, the UE may transmit an uplink transmission over the channel.