US 11,888,564 B2
Method for quantization of combination coefficients associated with frequency domain compression
Nadisanka Rupasinghe, Tokyo (JP); Yuki Matsumura, Tokyo (JP); and Satoshi Nagata, Tokyo (JP)
Assigned to NTT DOCOMO, INC., Tokyo (JP)
Appl. No. 17/292,021
Filed by NTT DOCOMO, INC., Tokyo (JP); and DOCOMO INNOVATIONS, INC., Palo Alto, CA (US)
PCT Filed Nov. 21, 2019, PCT No. PCT/US2019/062651
§ 371(c)(1), (2) Date May 7, 2021,
PCT Pub. No. WO2020/106981, PCT Pub. Date May 28, 2020.
Claims priority of provisional application 62/797,811, filed on Jan. 28, 2019.
Claims priority of provisional application 62/770,731, filed on Nov. 21, 2018.
Prior Publication US 2021/0399781 A1, Dec. 23, 2021
Int. Cl. H04B 7/06 (2006.01); H04L 27/26 (2006.01)
CPC H04B 7/0626 (2013.01) [H04B 7/0634 (2013.01); H04B 7/0641 (2013.01); H04B 7/0663 (2013.01); H04L 27/2636 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A terminal comprising:
a processor that performs quantization of K1 coefficients to generate a channel state information (CSI) report; and
a transmitter that transmits the CSI report,
wherein a maximum value of the K1 is K0 and the K0 is obtained by the following formula:
K0=┌β×2LM┘,β∈{¾,½,¼},
where L represents a number of beams and M represents a number of vectors associated with a subband.