公开(公告)号：US20240349323A1

公开(公告)日：2024-10-17

申请号：US18299574

申请日：2023-04-12

Applicant: QUALCOMM Incorporated

Inventor： Shay LANDIS ,  Ran Berliner ,  Peer Berger ,  Yevgeny Zagalsky ,  Eitan Yerushalmi ,  David Jacobian

IPC: H04W72/542 ,  H04L25/02 ,  H04W72/23

CPC classification number: H04W72/542 ,  H04L25/0224 ,  H04W72/23

Abstract: Aspects relate to mechanisms for mutual information (MI)-based physical downlink control channel (PDCCH) candidate pruning. A UE may receive a plurality of PDCCH candidates in a search space. Each of the PDCCH candidates includes a demodulation reference signal (DMRS) generated with the same scrambling seed and control information generated with one or more respective UE-specific non-transparent precoding parameters. The UE can prune the PDCCH candidates to identify at least one PDCCH candidate for decoding by generating the log-likelihood ratio (LLR) magnitudes of demodulated PDCCH candidates and calculating the mutual information based on the LLR magnitudes.

公开(公告)号：US12301256B2

公开(公告)日：2025-05-13

申请号：US18234824

申请日：2023-08-16

Applicant: Qualcomm Incorporated

Inventor： Yevgeny Zagalsky ,  Peer Berger ,  Ran Berliner ,  Shay Landis ,  Eitan Yerushalmi ,  David Jacobian

IPC: H03M13/15 ,  H03M13/11 ,  H03M13/41

Abstract: Certain aspects of the present disclosure provide techniques for Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for determining a minimal list size to use in list decoding operations for reducing resource consumption (e.g., compute, memory, and power) at a decoder. A method includes receiving a codeword comprising a plurality of channel bits encoded with an error-correcting code, the plurality of channel bits comprising, at least, a plurality of information bits, determining a payload size of the codeword, determining a channel capacity metric for the plurality of channel bits, determining a minimal list size for a list decoding operation based on at least the payload size and the channel capacity metric; and performing the list decoding operation on the codeword based on the minimal list size to obtain the plurality of information bits.