US Patent No. 10,433,315

CHANNEL RANK UPDATES IN MULTIPLE-INPUT MULTIPLE-OUTPUT COMMUNICATION SYSTEM


Patent No. 10,433,315
Issue Date October 01, 2019
Title Channel Rank Updates In Multiple-input Multiple-output Communication System
Inventorship Jayesh Kotecha, Austin, TX (US)
Assignee Apple Inc., Cupertino, CA (US)

Claim of US Patent No. 10,433,315

1. An apparatus comprising:channel feedback report circuitry configured to generate a first set of measured channel feedback information (CFI), including a first measured rank, and a second set of measured CFI, including a second measured rank, wherein the second measured rank corresponds to a different feedback type than the first measured rank;
processing logic configured to, in response to determining that the first measured rank and second measured rank are different, select one of the first measured rank or the second measured rank based on respective values of the first and second measured ranks; and
transmission circuitry configured to transmit a periodic CFI report that is generated based on the selected measured rank on a first communication channel, and to transmit an aperiodic CFI report that is generated based on the selected measured rank on a second, different communication channel.