公开(公告)号：WO2021042397A1

公开(公告)日：2021-03-11

申请号：PCT/CN2019/104805

申请日：2019-09-06

Applicant: HONG KONG APPLIED SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE CO., LTD.

Inventor： HOU, Yun ,  MAO, Yuyi ,  CHIU, Eddy ,  LIU, Xiangyu ,  LUO, Yaming ,  KWAN, Man Wai ,  TSANG, Kong Chau, Eric

IPC: H04W74/08

Abstract: Described is a method of decoding a physical sidelink shared channel (PSSCH) involving physical sidelink control channel (PSCCH) resource grid search space reduction, timing offset (TO) estimation, and reference symbol identification. Resource grid search space reduction may include identifying resource blocks (RBs) having a signal power below a first threshold such that said RBs can be excluded from further processing. Search space reduction may additionally or alternatively include identifying RB pairs where a difference in signal power between the RBs comprising each pair of RBs is above a second threshold and excluding any such said RB pairs from further processing. TO compensation may include circularly correlating TO-compensated received DMRSs and their corresponding local DMRSs to obtain energy or power profiles. From the energy/power profiles, a subset L of highest stored power values and their corresponding cyclic shift (ncs) values can be chosen where said power values are equal to or exceed a third threshold. The selected subset L can be made available for use in a decoding process for a received channel signal.

公开(公告)号：WO2021189299A1

公开(公告)日：2021-09-30

申请号：PCT/CN2020/081130

申请日：2020-03-25

Applicant: HONG KONG APPLIED SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE CO., LTD.

Inventor： LUO, Yaming ,  KWAN, Man Wai ,  LIU, Xiangyu ,  JIA, Kanghao ,  TSANG, Kong Chau

IPC: H04W24/02 ,  H04W76/28 ,  H04L1/16 ,  H04L1/18 ,  H03M13/136 ,  H04L27/2636 ,  H04L5/0055 ,  H04W72/0413

Abstract: Described is a method and device for processing a signal received at an uplink control information (UCI) receiver in a wireless communication system. The method comprises processing a signal received on an uplink (UL) at said UCI receiver to transform said received signal into a likelihood calculation of possible transmitted codewords (θ1... θi... θN). The likelihood calculation of possible transmitted codewords (θ1... θi... θN) may comprise a multi-dimensional discrete Fourier transform (DFT) (θ1... θi... θN) of said received signal. The multi-dimensional may be formed as a Hadamard Transform. The method includes determining a maximum magnitude θmax value from said likelihood calculation of possible transmitted codewords (θ1... θi... θN) and then comparing said θmax value to a selected, calculated or predetermined scaled threshold c.τ where τ is a threshold and c is a scaling factor for the threshold τ. The comparison is such that, where θmax > c.τ, it is determined that the signal received on the UL at said UCI receiver comprises a linear block encoded signal. In some cases, the scaling factor c may be omitted.