Quasi co-location identification of reference symbol ports for coordinated multi-point communication systems
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United States of America Patent
Stats
-
Jan 9, 2018
Grant Date -
Jul 16, 2015
app pub date -
Dec 15, 2014
filing date -
Apr 19, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
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.
First Claim
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International Classification(s)
- 2014 Application Filing Year
- H04L Class
- 29135 Applications Filed
- 23333 Patents Issued To-Date
- 80.09 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 10 Citation Count
- H04L Class
- 17.38 % this patent is cited more than
- 7 Age
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