Invention Grant
- Patent Title: Quasi co-location identification of reference symbol ports for coordinated multi-point communication systems
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Application No.: US16656480Application Date: 2019-10-17
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Publication No.: US10750434B2Publication Date: 2020-08-18
- Inventor: Boon Loong Ng , Krishna Sayana , Young-Han Nam , Jianzhong Zhang
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si
- Main IPC: H04W48/12
- IPC: H04W48/12 ; H04W64/00 ; H04L25/02 ; H04L5/00 ; H04L27/26 ; H04W16/14 ; H04W48/16 ; H04W56/00

Abstract:
Methods and apparatuses indicate and identify quasi co-located reference signal ports. A method of identifying by a UE includes identifying, from downlink control information, a CSI-RS port that is quasi co-located with a DM-RS port assigned to the UE. The method includes identifying large scale properties for the assigned DM-RS port based on large scale properties for the CSI-RS port. The method includes performing channel estimation and/or time/frequency synchronization using the identified large scale properties for the DM-RS port. Another method for identifying by a UE includes identifying, from downlink control information, a CRS port that is quasi co-located with a CSI-RS port configured for the UE. The method includes identifying large scale properties for the configured CSI-RS port based on large scale properties for the CRS port. The method includes performing channel estimation and/or time/frequency synchronization using the identified large scale properties for the CSI-RS port.
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