Invention Grant
- Patent Title: Performing listen-before-talk procedure during random access procedure
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Application No.: US17856578Application Date: 2022-07-01
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Publication No.: US11770860B2Publication Date: 2023-09-26
- Inventor: Esmael Hejazi Dinan
- Applicant: Ofinno, LLC
- Applicant Address: US VA Reston
- Assignee: Ofinno, LLC
- Current Assignee: Ofinno, LLC
- Current Assignee Address: US VA Reston
- Agent Garrison Prinslow; Kavon Nasabzadeh; Philip R. Smith
- Main IPC: H04W74/08
- IPC: H04W74/08 ; H04W76/27
Abstract:
A wireless device initiates a random access procedure on an unlicensed cell. A listen-before-talk (LBT) procedure, for transmission of a preamble of the random access procedure, is performed. In response to the LBT procedure indicating a clear channel, the wireless device: transmits the preamble via a random access channel (RACH) of the unlicensed cell, and monitors a physical downlink control channel (PDCCH) for a random access response (RAR). In response to the LBT procedure indicating an LBT failure, the wireless device: does not monitor the PDCCH for the RAR, and performs a random access resource selection procedure.
Public/Granted literature
- US20220338268A1 Performing Listen-before-talk Procedure During Random Access Procedure Public/Granted day:2022-10-20
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