Invention Grant
- Patent Title: UE-RS-based open-loop and semi-open-loop MIMO
-
Application No.: US17092764Application Date: 2020-11-09
-
Publication No.: US11336344B2Publication Date: 2022-05-17
- Inventor: Chao Wei , Wanshi Chen , Peter Gaal , Hao Xu , Neng Wang , Xiaohui Liu , Jilei Hou
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Qualcomm Incorporated
- Priority: WOPCT/CN2016/078312 20160401
- Main IPC: H04B7/06
- IPC: H04B7/06 ; H04B7/0456 ; H04L5/00 ; H04L27/26

Abstract:
Design of precoding and feedback for user equipment (UE)-specific reference signals (UE-RS)-based open-loop and semi-open-loop multiple input, multiple output (MIMO) systems is discussed. Aspects of the present disclosure provide for sub-resource block (RB) random precoding that allows for greater diversity gain in a lower bandwidth. In addition, the recoding may be performed using resource element (RE)-level layer shifting that provides for a number of precoders to be assigned to a number of layers for every such continuous subcarrier. As such, two codewords may experience the same effective channel quality with channel quality indicators (CQI) being averaged across all of the layers.
Public/Granted literature
- US20210058120A1 UE-RS-BASED OPEN-LOOP AND SEMI-OPEN-LOOP MIMO Public/Granted day:2021-02-25
Information query