Patent ID: 11949480
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method, by a receiver, comprising:
receiving a signal from a transmitter, via a communication channel between the receiver and the transmitter;
estimating parameters associated with the channel based on the received signal;
obtaining phase information from the estimated parameters;
applying a trellis coded quantization (TCQ) scheme to the obtained phase information by mapping each sub-codebook index of a set of sub-codebook indices to output bits of each trellis branch making the distance between sub-codebooks maximally equal; and
transmitting a channel state information (CSI) measurement feedback to the transmitter, the CSI measurement feedback based on the TCQ scheme and comprising one or more of:
a beginning state, input bits to the TCQ scheme, and a sub-codebook index.