Invention Grant
- Patent Title: Link adaptation in grant-free multiple access systems
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Application No.: US15653107Application Date: 2017-07-18
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Publication No.: US10609724B2Publication Date: 2020-03-31
- Inventor: Bin Liu , Richard Stirling-Gallacher , Jian Wang
- Applicant: Futurewei Technologies, Inc.
- Applicant Address: US TX Plano
- Assignee: Futurewei Technologies, Inc.
- Current Assignee: Futurewei Technologies, Inc.
- Current Assignee Address: US TX Plano
- Agency: Vierra Magen Marcus LLP
- Main IPC: H04W72/12
- IPC: H04W72/12 ; H04W74/08 ; H04L1/00 ; H04W24/08 ; H04W28/02 ; H04W72/14 ; H04W74/04
Abstract:
A BS determines an amount of resource overloading for a contention transmission unit (CTU) access region associated with a grant-free uplink transmission scheme in a multiple access system. The BS determines a modulation and coding scheme (MCS) limit indicating a maximum MCS level for the CTU access region. The BS sends the MCS limit to a plurality of user equipments (UEs) associated with the first CTU access region. A UE receives from the base station the MCS limit and determines a first MCS index within the MCS limit for a first uplink transmission. The UE sends the first uplink transmission to the base station using a CTU in the CTU access region. The first uplink transmission includes user data and the first MCS index determined at the first UE.
Public/Granted literature
- US20170318604A1 LINK ADAPTATION IN GRANT-FREE MULTIPLE ACCESS SYSTEMS Public/Granted day:2017-11-02
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