公开(公告)号：US20220360365A1

公开(公告)日：2022-11-10

申请号：US17307835

申请日：2021-05-04

Applicant: QUALCOMM Incorporated

Inventor： Shravan Kumar Reddy GARLAPATI ,  Afshin HAFTBARADARAN ,  Alessandro RISSO ,  Li ZHANG

IPC: H04L1/00 ,  H04W72/04 ,  H04W76/11

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a receiving node may determine a cyclic redundancy check (CRC) based at least in part on log-likelihood ratios (LLRs) associated with downlink control information (DCI) received from a transmitting node. The receiving node may perform a full unmasking of the CRC using a radio network temporary identifier (RNTI) based at least in part on a descrambling of the CRC with the RNTI, wherein a number of bits associated with the RNTI is associated with a number of bits associated with the CRC. The receiving node may initiate an early termination of a decoding of the LLRs based at least in part on the full unmasking of the CRC. Numerous other aspects are described.

公开(公告)号：US20230261785A1

公开(公告)日：2023-08-17

申请号：US17651058

申请日：2022-02-14

Applicant: QUALCOMM Incorporated

Inventor： Erman KOKEN ,  Gabi SARKIS ,  Hobin KIM ,  Hari SANKAR ,  Omar MEHANNA ,  Shravan Kumar Reddy GARLAPATI ,  Alessandro RISSO ,  Afshin HAFTBARADARAN

IPC: H04L1/00 ,  H03M13/13 ,  H04B1/7093

CPC classification number: H04L1/0057 ,  H03M13/13 ,  H04L1/0041 ,  H04B1/7093 ,  H04B2001/70935

Abstract: An apparatus may be configured to receive a polar-encoded transmission comprising at least one intermediate node associated with a first configuration of frozen leaf nodes and information leaf nodes. The apparatus may further be configured to apply an FHT to a first set of values associated with a first intermediate node of the at least one intermediate node to generate a second set of values associated with the first intermediate node. The apparatus may also be configured to select, based on the second set of values, one or more paths associated with the first intermediate node for a SSCL decoding. The apparatus may further be configured to calculate a path metric for each of the selected one or more paths associated with the first intermediate node.

公开(公告)号：US20210028886A1

公开(公告)日：2021-01-28

申请号：US16522350

申请日：2019-07-25

Applicant: QUALCOMM Incorporated

Inventor： Alexandre PIERROT ,  Hari SANKAR ,  Shravan Kumar Reddy GARLAPATI ,  Afshin HAFTBARADARAN ,  Alessandro RISSO ,  Jae Ho RYU ,  Ashok MANTRAVADI

IPC: H04L1/00 ,  H04B17/336

Abstract: Aspects described herein relate to decoding downlink control information (DCI) based on multiple DCI sizes. A first hypothesis of multiple hypotheses for decoding a communication received in a control channel search space, wherein the multiple hypotheses are based on different corresponding DCI sizes can be determined. The communication received in the control channel search space can be decoded based on the first hypothesis. For each of the multiple hypotheses and based on the different corresponding DCI sizes, information bits can be extracted from the communication as decoded. For each extracting of the information bits, cyclic redundancy check (CRC) can be performed based on one of the different corresponding DCI sizes to determine whether extracting of the information bits yields DCI.

公开(公告)号：US20190253213A1

公开(公告)日：2019-08-15

申请号：US16268186

申请日：2019-02-05

Applicant: QUALCOMM Incorporated

Inventor： Shravan Kumar Reddy GARLAPATI ,  Afshin HAFTBARADARAN ,  Alessandro RISSO ,  Alexandre PIERROT ,  Chinmay VAZE ,  Hari SANKAR ,  Li ZHANG

IPC: H04L5/00 ,  H04L27/26 ,  H04L1/00

Abstract: Certain aspects of the present disclosure generally relate to techniques for combining a plurality of decision metrics of a scrambled payload in a 5G wireless communications system. For example, in some cases, combining decision metrics of a scrambled payload may generally involve receiving a first payload at a receiver that was scrambled both before and after encoding, generating a second payload at the receiver with selectively set payload mask bits, and using the selectively-set payload mask bits in the second payload to descramble the first payload.