US 11,742,917 B2
Encoding of enhanced type II channel state information
Yu Zhang, Beijing (CN); Wei Zeng, San Diego, CA (US); Haitong Sun, Irvine, CA (US); Yuchul Kim, Santa Clara, CA (US); and Dawei Zhang, Saratoga, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Jun. 10, 2021, as Appl. No. 17/344,588.
Application 17/344,588 is a continuation of application No. 16/735,586, filed on Jan. 6, 2020, granted, now 11,063,649.
Claims priority of application No. 201910018322.1 (CN), filed on Jan. 9, 2019.
Prior Publication US 2021/0306046 A1, Sep. 30, 2021
Int. Cl. H04B 7/06 (2006.01); H04W 24/10 (2009.01); H04W 24/08 (2009.01); H04L 5/00 (2006.01); H04B 7/0456 (2017.01); H04L 1/06 (2006.01); H04W 72/54 (2023.01)
CPC H04B 7/0626 (2013.01) [H04B 7/0486 (2013.01); H04B 7/0632 (2013.01); H04L 1/0693 (2013.01); H04L 5/0057 (2013.01); H04W 24/08 (2013.01); H04W 24/10 (2013.01); H04W 72/54 (2023.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a processor configured to cause a user equipment (UE) to:
establish a connection with a base station;
receive, from the base station, control information for reporting channel state information in a channel state information report;
determine a spatial basis, W1, for L vectors;
determine M basis vectors after compression from N3 frequency units in frequency domain;
determine a plurality of compressed combination coefficients of a matrix of size 2LM coefficients associated with the determined spatial basis and M basis vectors, wherein the plurality of compressed combination coefficients corresponds to a particular layer;
encode the channel state information report including:
a first part including rank indicator information, wideband channel quality indicator (CQI) information, sub-band CQI information, and one or more fields indicating a number of non-zero coefficients to be reported; and
a second part including a field indicating indices of non-zero coefficients to be reported within the plurality of compressed combination coefficients; and
transmit the encoded channel state information report to the base station.