Samsung patents method to limit data types in multi-antenna wireless signals
Samsung has been granted a patent for a method that helps wireless devices manage how they report channel conditions to a network. The system uses specific bit patterns to tell the device which parts of the signal data to include or exclude when multiple antennas are working together.
In the filing’s own words
A method performed by a UE in a wireless communication system includes receiving configuration information on a CSI report including information on a codebook subset restriction, the codebook subset restriction being configured to each TRP of a plurality of TRPs performing coherent joint transmission or to a subset of the plurality of TRPs based on the information, measuring CSI based on at least one CSI-RS resource, and transmitting the CSI based on the codebook subset restriction.
What exactly they claim (claim 1)
1. A method performed by a user equipment (UE) in a wireless communication system, the method comprising: receiving configuration information for a channel state information (CSI) report including information on a codebook subset restriction for coherent joint transmission (CJT) CSI; measuring CSI based on CSI-RS resources corresponding to a plurality of transmission reception points (TRPs) performing CJT; and transmitting the CSI based on the information on the codebook subset restriction, wherein the information on the codebook subset restriction for the CJT CSI comprises a plurality of bit sequences, each bit sequence corresponding to one of the plurality of TRPs, wherein whether the codebook subset restriction is applied to each TRP is determined based on one of the plurality of bit sequences corresponding to each TRP, and wherein each bit sequence is formed by concatenating a first bit sequence indicating vector groups of each TRP to which the codebook subset restriction is applied and a second bit sequence indicating a maximum average coefficient amplitude corresponding to the vector groups.
Facts
- Company
- Samsung (SAMSUNG ELECTRONICS CO., LTD.)
- Official title
- Method and apparatus for codebook subset restriction
- Patent number
- US12763839B2
- Application number
- 18448059
- Filed
- Aug 10, 2023
- Granted
- Oct 13, 2026
- Inventors
- 5
- Claims
- 12
Classified under
H04B 7/0663 Electricity & electronicsH04B 7/0626 Electricity & electronicsH04B 7/0639 Electricity & electronicsH04L 5/0053 Electricity & electronicsMore from Samsung in Networks & wireless
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.