Invention Grant
- Patent Title: Coordinated listen before talk (C-LBT) for long term evolution (LTE) licensed-assisted access (LAA)
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Application No.: US16400911Application Date: 2019-05-01
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Publication No.: US10986558B2Publication Date: 2021-04-20
- Inventor: Balaji B Raghothaman , Ehsan Daeipour , Pablo Caballero Garces
- Applicant: CommScope Technologies LLC
- Applicant Address: US NC Hickory
- Assignee: CommScope Technologies LLC
- Current Assignee: CommScope Technologies LLC
- Current Assignee Address: US NC Hickory
- Agency: Fogg & Powers LLC
- Main IPC: H04W28/26
- IPC: H04W28/26 ; H04W74/08 ; H04W72/08 ; H04B17/336 ; H04W72/04 ; H04W28/08 ; H04W92/04 ; H04W40/22 ; H04W92/16 ; H04W84/10

Abstract:
A system for channel access in Long Term Evolution (LTE) License-Assisted Access (LAA) is disclosed. The system includes a controller and a plurality of radio points. A level one radio point transmits a first reservation signal in response to a first backoff counter reaching zero. The first reservation signal indicates that the level one radio point will begin a first transmission of a first duration starting in a next subframe. A candidate level two radio point receives the first reservation signal and determines whether the candidate level two radio point received the first reservation signal with a signal to interference noise ratio (SINR) that exceeds a reservation detection threshold for the candidate level two radio point.
Public/Granted literature
- US20190342798A1 COORDINATED LISTEN BEFORE TALK (C-LBT) FOR LONG TERM EVOLUTION (LTE) LICENSED-ASSISTED ACCESS (LAA) Public/Granted day:2019-11-07
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