公开(公告)号：US20250106857A1

公开(公告)日：2025-03-27

申请号：US18730885

申请日：2022-03-25

Applicant: QUALCOMM Incorporated

Inventor： Jian LI ,  Liangming WU ,  Changlong XU ,  Jing JIANG ,  Kangqi LIU ,  Wei YANG ,  Hobin KIM ,  Hari SANKAR ,  Hao XU

IPC: H04W72/23 ,  H04L27/26

Abstract: Wireless communications systems and methods related to communicating control information are provided. A method of wireless communication performed by a user equipment (UE) may include monitoring a first set of physical downlink control channel (PDCCH) candidate resources for a PDCCH communication from a network unit, receiving, from the network unit, a plurality of demodulation reference signals (DMRSs), and decoding, based on a metric associated with the plurality of demodulation reference signals (DMRSs) satisfying a threshold, the PDCCH communication.

公开(公告)号：US20240137888A1

公开(公告)日：2024-04-25

申请号：US18546556

申请日：2021-04-18

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Jian LI ,  Chenxi HAO ,  Yu ZHANG

IPC: H04W56/00 ,  H04B7/185

CPC classification number: H04W56/0045 ,  H04B7/18502

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an aerial user equipment (UE) may measure a first offset associated with a downlink frame based at least in part on a time when a downlink signal is received from a terrestrial base station. The aerial UE may determine a second offset corresponding to a starting time for the downlink frame at the terrestrial base station. The aerial UE may transmit an uplink message in an uplink frame using a timing advance that is based at least in part on a value of the first offset and a value of the second offset relative to a starting time associated with a global navigation satellite system frame duration. Numerous other aspects are described.

公开(公告)号：US20240048287A1

公开(公告)日：2024-02-08

申请号：US18256042

申请日：2021-02-10

Applicant: QUALCOMM Incorporated

Inventor： Kangqi LIU ,  Ruiming ZHENG ,  Changlong XU ,  Liangming WU ,  Kexin XIAO ,  Jian LI ,  Hao XU ,  Wei LIU

IPC: H04L1/1829

CPC classification number: H04L1/1832 ,  H04L1/1848

Abstract: Apparatus, methods, and computer-readable media for network coding for dual connectivity are disclosed herein. A base station (BS) sends encoded symbols from a first network coding layer to a first radio link control (RLC) layer and transmits, to a user equipment (UE), encoded data comprising the encoded symbols. The BS also transmits encoded data to a road side unit (RSU) for passing to the UE as a split transmission. The UE can receive encoded packets from the BS and RSU at a network coding layer via a second RLC layer. The UE recovers source packets from the encoded packets with a rateless network code at the network coding layer. The UE sequences the source packets into an ordered set of source packets at the network coding layer and sends the ordered set of source packets from the network coding layer to a packet data convergence protocol layer for processing.

公开(公告)号：US20230224806A1

公开(公告)日：2023-07-13

申请号：US17998243

申请日：2020-06-19

Applicant: Hao ZHANG ,  Jian LI ,  Dongsheng WANG ,  Haibo LIU ,  ChaoFeng HUI ,  Fojian ZHANG ,  Yuankun ZHU ,  Tianya LIN ,  QUALCOMM Incorporated

Inventor： Hao ZHANG ,  Jian LI ,  Dongsheng WANG ,  Haibo LIU ,  Chaofeng HUI ,  Fojian ZHANG ,  Yuankun ZHU ,  Tianya LIN

IPC: H04W48/18 ,  H04W60/04

CPC classification number: H04W48/18 ,  H04W60/04 ,  H04W84/042

Abstract: Techniques to recover from authentication failure are disclosed. During authentication of a user equipment (UE) with a public land mobile network (PLMN), the UE may receive an AUTHENTICATION REJECT with an extensible authentication protocol (EAP)-failure message. When this occurs, instead of invalidating the universal subscriber identity module (USIM) of the UE, the UE can search for other PLMNs that can potentially pass the authentication challenge. If one is found, the UE can register with the found PLMN.

公开(公告)号：US20230155725A1

公开(公告)日：2023-05-18

申请号：US17995534

申请日：2021-05-27

Applicant: QUALCOMM Incorporated

Inventor： Liangming WU ,  Changlong XU ,  Jian LI ,  Kangqi LIU ,  Xipeng ZHU ,  Hao XU

IPC: H04L1/00 ,  H04L1/1607

CPC classification number: H04L1/0045 ,  H04L1/1607

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a receiver may determine that a quantity of a first plurality of radio link layer (RLC) protocol data unit (PDU) packets, received from a transmitter, satisfies a first quantity threshold. The receiver may perform a decoding attempt for the first plurality of RLC PDU packets based at least in part on the determination. The receiver may transmit, to the transmitter, an RLC layer feedback report for the first plurality of RLC PDU packets. The RLC layer feedback report may be based at least in part on the decoding attempt. Numerous other aspects are provided.

公开(公告)号：US20220140946A1

公开(公告)日：2022-05-05

申请号：US17310189

申请日：2019-01-23

Applicant: Kai CHEN ,  Changlong XU ,  Liangming WU ,  Jian LI ,  Jing JIANG ,  Hao XU ,  QUALCOMM Incorporated

Inventor： Kai CHEN ,  Changlong XU ,  Liangming WU ,  Jian LI ,  Jing JIANG ,  Hao XU

IPC: H04L1/08

Abstract: Wireless communications systems and methods related to hybrid repeat request (HARQ) with rate splitting are provided. A first wireless communication device communicates, with a second wireless communication device, a first communication signal including a plurality of information bits. The first wireless communication device determines a number of bits in the plurality of information bits to be repeated in a second communication signal based on channel capacity information. The first wireless communication device communicates, with the second wireless communication device, the second communication signal including the plurality of information bits and a repetition of a subset of the plurality of information bits, where the subset of the plurality of information bits includes the determined number of bits.

公开(公告)号：US20200187166A1

公开(公告)日：2020-06-11

申请号：US16336303

申请日：2017-07-11

Applicant: Changlong XU ,  Jian LI ,  Chao WEI ,  Chong LI ,  Tingfang JI ,  Jilei HOU ,  QUALCOMM Incorporated

Inventor： Changlong XU ,  Jian LI ,  Chao WEI ,  Chong LI ,  Tingfang JI ,  Jilei HOU

IPC: H04W72/04 ,  H04L1/00

Abstract: Various aspects of the disclosure relate to mapping different information to different sub-channels. For example, information for different users may be mapped to different Polar code sub-channels. In some aspects, the mapping may be unbalanced in that different information is mapped to different sub-channels according to the quality (e.g., in terms of error probability) of the sub-channels and a criterion associated with the information. For example, control information for users that are experiencing the worst channel quality (e.g., in a wireless communication channel) may be mapped to the Polar code sub-channels that have the best quality.

公开(公告)号：US20190296776A1

公开(公告)日：2019-09-26

申请号：US16317395

申请日：2017-06-12

Applicant: Changlong XU ,  Jian LI ,  Chao WEI ,  Jilei HOU ,  QUALCOMM Incorporated

Inventor： Changlong XU ,  Jian LI ,  Chao WEI ,  Jilei HOU

IPC: H03M13/00 ,  H03M13/13

Abstract: Various aspects of the disclosure relate to rate matching techniques for block encoding. In some aspects, a decision regarding whether to use repetition-based rate matching or puncture-based rate matching is made based on a block size of information being encoded. In some aspects, repetition-based rate matching uses a bit-reversal permutation technique.

公开(公告)号：US20180375615A1

公开(公告)日：2018-12-27

申请号：US16065077

申请日：2016-08-17

Applicant: QUALCOMM Incorporated

Inventor： Changlong XU ,  Jian LI ,  Jilei HOU ,  Neng WANG

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

CPC classification number: H04L1/0068 ,  H03M13/13 ,  H03M13/618 ,  H03M13/6362 ,  H04L1/0054 ,  H04L1/0057

Abstract: Polar codes may be generated with a variable block length utilizing puncturing. Some puncturing schemes consider punctured bits as unknown bits, and set the log likelihood ratio (LLR) for those bits to zero; while other puncturing schemes consider punctured bits as known bits, and set the LLR for those bits to infinity. Each of these puncturing schemes has been observed to provide benefits over the other under different circumstances, especially corresponding to different coding rates or different signal to noise ratio (SNR). According to aspects of the present disclosure, both puncturing schemes are compared, and the puncturing scheme resulting in the better performance is utilized for transmission.

公开(公告)号：US20250105944A1

公开(公告)日：2025-03-27

申请号：US18821786

申请日：2024-08-30

Applicant: QUALCOMM Incorporated

Inventor： Jian LI ,  Changlong XU ,  Chao WEI ,  Jilei HOU

IPC: H04L1/00 ,  H03M13/13 ,  H03M13/27 ,  H03M13/29

Abstract: Aspects of the disclosure relate to wireless communication devices configured to encode information blocks to produce code blocks and interleave the code blocks utilizing an interleaver including a plurality of rows and a plurality of columns, where the number of columns of the interleaver varies between the rows. In some examples, the interleaver includes a right isosceles triangle-shaped matrix of rows and columns. In other examples, the interleaver includes a trapezoid-shaped matrix of rows and columns.