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公开(公告)号：US20250056567A1
公开(公告)日：2025-02-13
申请号：US18717968
申请日：2022-02-24
Applicant: QUALCOMM INCORPORATED
Inventor： Siyi Chen , Jing Sun , Xiaoxia Zhang , Changlong Xu , Shaozhen Guo , Luanxia Yang
Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a first UE may be configured to transmit multiple sidelink synchronization signal blocks (S-SSBs) within an S-SSB period, the transmissions back-to-back or non-back-to-back. The first UE may determine one or more listen-before-talk occasions associated with the S-SSBs, participate in at least one listen-before-talk procedure during a listen-before-talk occasion, and transmit the multiple S-SSBs to a second UE. In some other examples, the first UE may identify a reference frequency position of a reference S-SSB in a sidelink BWP. The first UE may transmit the reference S-SSB and one or more additional S-SSBs to a second UE, the one or more additional S-SSBs having frequency positions following the reference frequency position.
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公开(公告)号：US12191993B2
公开(公告)日：2025-01-07
申请号：US18261982
申请日：2021-03-18
Applicant: QUALCOMM INCORPORATED
Inventor： Wei Liu , Thomas Joseph Richardson , Liangming Wu , Changlong Xu , Ori Shental , Hao Xu
Abstract: Methods, systems, and devices for wireless communication are described to support replacing values of one or more information bit vectors with one or more corresponding sets of parity bits. A first wireless device may replace an information bit vector with a parity bit vector, using a set of information bits of the information bit vector and based on a parity check matrix, which may result in generating the set of information bits at an information bit vector corresponding to a parity bit column of the parity check matrix, during encoding. The first wireless device may perform a transmission to a second wireless device, which may receive the transmission, decode the set of information bits to the information bit vector corresponding to the parity bit column. The second wireless device may replace other bit estimates of a vector corresponding to an information bit column with the set of information bits.
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公开(公告)号：US20240406052A1
公开(公告)日：2024-12-05
申请号：US18694309
申请日：2021-12-01
Applicant: QUALCOMM INCORPORATED
Inventor： Kexin Xiao , Liangming Wu , Changlong Xu , Wei Liu , Jian Li , Kangqi Liu , Hao Xu
Abstract: Methods, systems, and devices for scrambling for probabilistic constellation schemes (PCSs) in wireless communications are described. In some examples, a first wireless device may scramble a set of amplitude information bits associated with a transport block for transmission to a second wireless device. In such examples, the first wireless device may perform a distribution matching procedure on the scrambled set of amplitude information bits. The first wireless device may encode the set of distributed amplitude bits and, in some cases, may perform a modulation procedure on the encoded set of distributed amplitude bits in accordance with a PCS scheme to obtain a codeword associated with the transport block. In some examples, the first wireless device may transmit the codeword to the second wireless device.
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公开(公告)号：US12069699B2
公开(公告)日：2024-08-20
申请号：US18067500
申请日：2022-12-16
Applicant: QUALCOMM Incorporated
Inventor： Liangming Wu , Kangqi Liu , Changlong Xu , Jian Li , Hao Xu
IPC: H04L1/02 , H04B7/0413 , H04L1/16 , H04W72/23 , H04W72/30
CPC classification number: H04W72/30 , H04B7/0413 , H04L1/16 , H04W72/23
Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit an encoded transmission via a broadcast to multiple user equipment (UE). Subsequently, the multiple UEs may transmit assistance information to the base station based on attempting to decode the broadcasted encoded transmission. If the decoding is unsuccessful for at least one UE, the base station may then transmit an additional encoded transmission via a unicast or multicast message to the UEs that were unsuccessful. Additionally, the base station may transmit configuration information for the multiple UEs to receive the encoded transmissions and to transmit the assistance information. For example, the configuration information may include portion information for how long the encoded transmission is transmitted via the broadcast, via the unicast, when to transmit the assistance information, etc. In some cases, the configuration information may be based on UE metrics of the multiple UEs.
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公开(公告)号：US12063653B2
公开(公告)日：2024-08-13
申请号：US17596360
申请日：2019-07-01
Applicant: QUALCOMM Incorporated
Inventor： Yuwei Ren , Chao Wei , Min Huang , Yu Zhang , Huilin Xu , Qiaoyu Li , Chenxi Hao , Liangming Wu , Hao Xu , Changlong Xu , Wanshi Chen
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information for an uplink control channel, wherein the configuration information includes at least one of: a first resource identifier associated with a non-full-duplex (non-FD) zone, or a second resource identifier associated with a full-duplex (FD) zone. The UE may transmit uplink control information (UCI) on the uplink control channel in at least one of the non-FD zone or the FD zone in accordance with the configuration information. Numerous other aspects are provided.
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Patent Agency Ranking
公开(公告)号：US12034534B2
公开(公告)日：2024-07-09
申请号：US18187255
申请日：2023-03-21
Applicant: QUALCOMM Incorporated
Inventor： Changlong Xu , Jian Li , Chao Wei , Jing Jiang , Jilei Hou
CPC classification number: H04L1/0058 , G06F9/30029 , H03M13/098 , H03M13/13 , H04B7/2668 , H04L1/0046 , H04L1/0052 , H04L1/0061 , H04L1/0063 , H04W40/02
Abstract: Methods, systems, and devices for wireless communication are described for dynamic frozen bits of polar codes for early termination and performance improvement. A wireless device may receive a signal comprising a codeword encoded using a polar code. The wireless device may perform decoding of the codeword including at least: parity check of a first subset of decoding paths for making a decision on early termination of decoding of the codeword based on dynamic frozen bits, and generating path metrics for a second subset of the decoding paths that each pass the parity check based on the dynamic frozen bits, and performing error detection on a bit sequence corresponding to one of the second subset of the decoding paths based at part on error detection bits and the generated path metrics. The wireless device may process the information bits based on a result of the decoding.
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公开(公告)号：US11949434B2
公开(公告)日：2024-04-02
申请号：US17761262
申请日：2019-09-20
Applicant: Qualcomm Incorporated
Inventor： Changlong Xu , Tao Luo , Hao Xu
CPC classification number: H03M13/3761 , H04L1/0041 , H04L1/0045
Abstract: Methods, systems, and devices for wireless communications are described. An encoding device (e.g., a user equipment (UE) or a base station) may divide one or more data units (e.g., packet data convergence protocol (PDCP) protocol data units (PDU)) into a set of data blocks. The encoding device may encode the set of data blocks using a fountain code and may generate a set of data units (e.g., radio link control (RLC) PDUs) based on encoding the set of data blocks using the fountain code. The UE may allocate a first subset of the set of data units to a first carrier and a second subset of the set of data units to a second carrier and may transmit the first subset over the first carrier and the second subset over the second carrier.
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公开(公告)号：US20230262735A1
公开(公告)日：2023-08-17
申请号：US18067500
申请日：2022-12-16
Applicant: QUALCOMM Incorporated
Inventor： Liangming Wu , Kangqi Liu , Changlong Xu , Jian Li , Hao Xu
IPC: H04W72/30 , H04W72/23 , H04B7/0413 , H04L1/16
CPC classification number: H04W72/30 , H04W72/23 , H04B7/0413 , H04L1/16
Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit an encoded transmission via a broadcast to multiple user equipment (UE). Subsequently, the multiple UEs may transmit assistance information to the base station based on attempting to decode the broadcasted encoded transmission. If the decoding is unsuccessful for at least one UE, the base station may then transmit an additional encoded transmission via a unicast or multicast message to the UEs that were unsuccessful. Additionally, the base station may transmit configuration information for the multiple UEs to receive the encoded transmissions and to transmit the assistance information. For example, the configuration information may include portion information for how long the encoded transmission is transmitted via the broadcast, via the unicast, when to transmit the assistance information, etc. In some cases, the configuration information may be based on UE metrics of the multiple UEs.
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9.发明公开公开(公告)号：US20230261729A1
公开(公告)日：2023-08-17
申请号：US18003576
申请日：2020-08-21
Applicant: QUALCOMM Incorporated
Inventor： Min Huang , Chao Wei , Qiaoyu Li , Jing Dai , Wei Xi , Chenxi Hao , Kangqi Liu , Hao Xu , Changlong Xu , Wanshi Chen
CPC classification number: H04B7/0888 , H04B7/0626 , H04B7/0857
Abstract: Aspects of the disclosure relate to transmitting, from a user equipment (UE) to a base station, information indicative of a multicast session that the UE is interested in accessing; transmitting information indicating that a first beam of a plurality of beams is a preferred beam for receiving multicast data associated with the multicast session; receiving, from the base station, a list of at least one beam of the plurality of beams associated with the multicast session; and receiving, from the base station using a beam from the list, multicast data associated with the multicast session. Other aspects, embodiments, and features are also claimed and described.
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公开(公告)号：US11677506B2
公开(公告)日：2023-06-13
申请号：US16765557
申请日：2017-11-20
Applicant: Changlong Xu , Hao Xu , Jing Jiang , Qualcomm Incorporated
Inventor： Changlong Xu , Hao Xu , Jing Jiang
IPC: H04L1/1812 , H04L1/1825 , H04L1/1867 , H04L1/1829 , H04L1/1803 , H04W76/27 , H04L1/20 , H04W72/54
CPC classification number: H04L1/1812 , H04L1/1803 , H04L1/188 , H04L1/1825 , H04L1/1848 , H04L1/1896 , H04L1/1887 , H04L1/203 , H04W72/54 , H04W76/27
Abstract: Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support hybrid automatic repeat request (HARQ) schemes to improve the likelihood that information is received correctly over a wireless communications link. In HARQ, when a transmitting device determines that a receiving device failed to successfully decode a transmission of information, the transmitting device may retransmit the information to the receiving device. In some cases, HARQ techniques may be used for communications associated with different types of services. In such cases, to keep the latency of communications within a latency budget for a particular type of service, wireless devices may utilize the techniques described herein to dynamically terminate HARQ retransmissions. For instance, a transmitting device may avoid retransmitting information when an amount of time that has elapsed since an original transmission of the information has exceeded the latency budget.
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