公开(公告)号：US10986558B2

公开(公告)日：2021-04-20

申请号：US16400911

申请日：2019-05-01

Applicant: CommScope Technologies LLC

Inventor： Balaji B Raghothaman ,  Ehsan Daeipour ,  Pablo Caballero Garces

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.