公开(公告)号：US11063613B2

公开(公告)日：2021-07-13

申请号：US16605911

申请日：2017-05-15

Applicant: Qualcomm Incorporated

Inventor： Gabi Sarkis ,  Hari Sankar ,  Gaojin Wu ,  Changlong Xu ,  Jing Jiang ,  Huang Lou

IPC: H03M13/37 ,  H03M13/13

Abstract: Techniques are described herein to terminate a list decoding operation before its completion based on performing one or more error check processes. A transmitted codeword encoded using a polar code may include one or more error check vectors interspersed with one or more information vectors. Upon receiving the codeword, a decoder may perform a list decoding operation on the received codeword. Upon decoding one of the error check vectors, the decoder may determine whether at least one candidate path used in the successive cancellation list decoding operation passes an error check process based on the error check vector. If no candidate paths satisfy the error check process, the decoder may terminate the list decoding operation. In some examples, the decoder may recheck whether candidate paths satisfy the error check operation at intermediate positions between error check vectors. Such rechecking may occur while decoding information vectors.

公开(公告)号：US11044048B2

公开(公告)日：2021-06-22

申请号：US16470881

申请日：2018-01-12

Applicant: QUALCOMM Incorporated

Inventor： Hari Sankar ,  Gabi Sarkis ,  Changlong Xu ,  Alexei Gorokhov ,  Jing Jiang ,  Joseph Binamira Soriaga ,  Jilei Hou

IPC: H04L1/00 ,  H03M13/13 ,  H03M13/00 ,  H04L5/00

Abstract: The disclosure relates in some aspects to information encoding. Information encoding may involve puncturing bits of a codeword or repeating bits of a codeword. The disclosure relates in some aspects to selecting a puncturing or repetition pattern. In some aspects, a puncture pattern for data encoding is selected based on a criterion that the output and the repetition input of an XOR are not erased. In some aspects, a repetition pattern for data encoding is selected based on a criterion that repetition not be applied for the output and the repetition input of an XOR.

公开(公告)号：US11032824B2

公开(公告)日：2021-06-08

申请号：US16671015

申请日：2019-10-31

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Jing Jiang ,  Wanshi Chen

IPC: H04J3/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may monitor a downlink transmission for control information during a set of physical downlink control channel (PDCCH) monitoring occasions. The UE may determine a first configuration for the set of PDCCH monitoring occasions during a slot of the downlink transmission and a threshold number of PDCCH candidates and/or a threshold number of non-overlapping CCEs within the slot. In some cases, the UE may also determine a threshold number of PDCCH candidates and/or non-overlapping control channel elements (CCEs) within a single PDCCH monitoring occasion. The threshold number of PDCCH candidates and non-overlapping CCEs may be fixed, based on the number of PDCCH monitoring occasions during the slot, based on a processing capability of the UE, or a combination thereof. The UE may decode control information contained in one or more of the PDCCH monitoring occasions.

公开(公告)号：US20210167891A1

公开(公告)日：2021-06-03

申请号：US17178012

申请日：2021-02-17

Applicant: Qualcomm Incorporated

Inventor： Jing Jiang ,  Gabi Sarkis ,  Yang Yang ,  Shrinivas Kudekar ,  Joseph Soriaga ,  Hari Sankar ,  Changlong Xu ,  Chao Wei

IPC: H04L1/00

Abstract: Methods, systems, and devices for encoding and decoding are described. To encode a vector, an encoder allocates information bits of the vector to channel instances of a channel that are separated into groups. The groups may vary in size and allocation of the information bits is based on a base sequence of a given length. During decoding, a decoder assigns different bit types to channels instances by dividing a codeword into a plurality of groups and assigning bit types to channel instances of the plurality of groups using the base sequence.

公开(公告)号：US11026257B2

公开(公告)日：2021-06-01

申请号：US16455431

申请日：2019-06-27

Applicant: QUALCOMM Incorporated

Inventor： Gabi Sarkis ,  Chih-Ping Li ,  Alexandros Manolakos ,  Wanshi Chen ,  Jing Jiang

IPC: H04W72/14 ,  H04W72/04 ,  H04L5/00 ,  H04L1/20 ,  H04L1/18

Abstract: Certain aspects of the present disclosure provide techniques for physical downlink control channel (PDCCH) with repetitions, including techniques for signaling the number of PDCCH repetitions, the hybrid automatic repeat request (HARQ) timeline processing with PDCCH repetitions, and the demodulation reference signal (DMRS) structure for the repeated PDCCH. A method for wireless communications, by a user equipment (UE), includes determining a number of repetitions of a PDCCH. Each of the PDCCH repetitions has a same downlink control information (DCI) payload, a same aggregation level, and/or a grant for a same data channel allocation. The method includes monitoring for the PDCCH based on the determined number of repetitions.

公开(公告)号：US11006376B2

公开(公告)日：2021-05-11

申请号：US15877976

申请日：2018-01-23

Applicant: QUALCOMM Incorporated

Inventor： Hung Ly ,  Jing Jiang ,  Alberto Rico Alvarino ,  Xiao feng Wang ,  Tao Luo ,  Joseph Binamira Soriaga ,  Gabi Sarkis

IPC: H04W56/00 ,  H04L1/00 ,  H04L5/00 ,  H04L1/08 ,  H04L1/04 ,  H04W88/08 ,  H04W88/02

Abstract: Techniques for wireless communication are described. A method of wireless communication at a user equipment (UE) includes receiving a synchronization signal within a synchronization signal (SS) block; receiving at least a portion of a physical broadcast channel (PBCH) of the SS block, the PBCH comprising a self-decodable portion and an outside portion; and decoding the PBCH based at least in part on receiving the self-decodable portion of the PBCH. The synchronization signal has a first bandwidth. The self-decodable portion of the PBCH has a second bandwidth substantially within the first bandwidth. The outside portion having a bandwidth that is outside of the second bandwidth and within a PBCH bandwidth, the PBCH bandwidth being greater than the first bandwidth.

公开(公告)号：US20210135783A1

公开(公告)日：2021-05-06

申请号：US16487050

申请日：2017-12-14

Applicant: Yang YANG ,  Jing JIANG ,  Gabi SARKIS ,  Chao WEI ,  Jian LI ,  Changlong XU ,  Hari SANKAR ,  Joseph Binamira SORIAGA ,  QUALCOMM Incorporated

Inventor： Yang Yang ,  Jing Jiang ,  Gabi Sarkis ,  Chao Wei ,  Jian Li ,  Changlong Xu ,  Hari Sankar ,  Joseph Binamira Soriaga

IPC: H04L1/00 ,  H03M13/13 ,  H03M13/01 ,  G06N7/00

Abstract: Methods, systems, and devices for wireless communication are described for mutual information based polar code construction. A wireless device may receive a codeword over a wireless channel, the codeword encoded using a polar code. The wireless device may identify a set of bit locations of the polar code corresponding to information bits of an encoded information bit vector. The set of bit locations may be determined based at least in part on a reliability order of the bit locations of the polar code, and the reliability order may be determined based at least in part on a recursive model that includes at least one mutual information transfer function that is applied at each polarization stage of multiple polarization stages of the polar code. The wireless device may decode the received codeword to obtain the information bit vector at the set of bit locations.

公开(公告)号：US10973018B2

公开(公告)日：2021-04-06

申请号：US15359541

申请日：2016-11-22

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Tao Luo ,  Tingfang Ji ,  Jing Jiang ,  Jamie Menjay Lin ,  Yang Yang

IPC: H04J1/02 ,  H04L5/00 ,  H04W72/04 ,  H04B7/0452

Abstract: Transmission of user equipment (UE) specific control information within a resource allocation including resource blocks allocated for downlink transmissions to the UE is disclosed. Common control information may be provided in a first transmission time interval (TTI)-level control region, and UE-specific control information, specific to a particular UE, may be provided along with data in allocated downlink resources to the UE. A base station may identify a resource block (RB) for transmission of data to a UE along with UE-specific control information to be included in the RB. The control information may include, for example, parameters for use by the receiver in demodulating the RB. The base station may multiplex the control information with the data within the RB and transmit the RB and control information.

公开(公告)号：US10939419B2

公开(公告)日：2021-03-02

申请号：US15619007

申请日：2017-06-09

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Hao Xu ,  Yi Huang ,  Wanshi Chen ,  Tingfang Ji ,  Jing Jiang

IPC: H04W72/04 ,  H04L5/00 ,  H04L1/16 ,  H04L1/00

Abstract: Various additional and alternative aspects are described herein. In some aspects, the present disclosure provides a method for wireless communication. The method includes determining content to include in an uplink control information (UCI) based on a portion of a subframe that includes the UCI. The method further includes transmitting the UCI in the portion of the subframe.

公开(公告)号：US10863538B2

公开(公告)日：2020-12-08

申请号：US16280708

申请日：2019-02-20

Applicant: QUALCOMM Incorporated

Inventor： Jay Kumar Sundararajan ,  Chih-Ping Li ,  Jing Jiang ,  Wanshi Chen

IPC: H04W72/14 ,  H04L5/00 ,  H04W72/12 ,  H04L1/18

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a grant that identifies a set of uplink resources. The UE may determine whether a timing of the grant overlaps with a repetition window of a grant-free uplink communication configured on the UE. The UE may process the grant based at least in part on whether the timing of the grant overlaps with the repetition window of the grant-free uplink communication. Numerous other aspects are provided.