The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 05, 2025
Filed:
Mar. 27, 2023
Rakuten Symphony, Inc., Tokyo, JP;
Raghavendra Madanahally Ramakrishna, Bangalore, IN;
Ronak Bharatkumar Lalwala, Bangalore, IN;
Vijayakumar Yalamalli, Bangalore, IN;
Vihang Kamble, Surrey, GB;
Rakuten Symphony, Inc., Tokyo, JP;
Abstract
Techniques for selecting layers and ports for Multiple-Input-Multiple-Output (MIMO) beamforming are provided. In some implementations, the techniques may include receiving a plurality of Sounding Reference Signals (SRSs) transmitted by a plurality of SRS ports, each of the plurality of SRSs corresponding with a SRS port of a UE. In addition, the techniques may include measuring a Signal-to-Noise Ratio (SNR) for each of the plurality of SRS ports, and estimating a wideband channel port correlation matrix across the plurality of SRS ports. The techniques may include setting a correlation threshold and a SNR threshold. Further, the techniques may include selecting one or more SRS ports from the plurality of SRS ports that satisfy a condition of being equal to or less than the correlation threshold and equal to or greater than the SNR threshold, where the layers correspond with a total number of SRS ports that satisfy the above condition.