Invention Grant
- Patent Title: Link adaptation in grant-free multiple access systems
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Application No.: US14810119Application Date: 2015-07-27
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Publication No.: US09743423B2Publication Date: 2017-08-22
- 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: Futurewei Technologies, Inc.
- Main IPC: H04W72/14
- IPC: H04W72/14 ; H04W72/12 ; H04L1/00 ; H04W24/08 ; H04W28/02 ; H04W74/08 ; 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
- US20170034845A1 Link Adaptation In Grant-Free Multiple Access Systems Public/Granted day:2017-02-02
Information query
