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公开(公告)号：US20230171815A1
公开(公告)日：2023-06-01
申请号：US17921084
申请日：2020-05-02
Applicant: QUALCOMM Incorporated
Inventor： Yisheng XUE , Xiaoxia ZHANG , Jing SUN , Ozcan OZTURK , Tao LUO , Juan MONTOJO , Peter GAAL , Changlong XU
CPC classification number: H04W74/0866 , H04W72/25 , H04W72/56 , H04W74/0816
Abstract: Aspects of the disclosure relate to, at a wireless communication device, occupying a slot in a first subchannel, wherein the first subchannel comprises a sidelink subchannel in a licensed band, transmitting sidelink control in the first subchannel during the slot, except during a symbol gap indicated to include at least a last symbol of a plurality of symbols supported by the slot, seeking access to a secondary carrier in an unlicensed band, and transmitting sidelink traffic in the secondary carrier upon receiving the access to the secondary carrier. Other aspects, embodiments, and features are also claimed and described.
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公开(公告)号：US20230171074A1
公开(公告)日：2023-06-01
申请号：US17906606
申请日：2020-04-08
Applicant: QUALCOMM Incorporated
Inventor： Changlong XU , Jing SUN , Xiaoxia ZHANG , Aleksandar DAMNJANOVIC
IPC: H04L5/00
CPC classification number: H04L5/0092 , H04L5/0053
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) in communication with a base station may support updating a bandwidth part (BWP) width from a default configuration. The UE may identify a first BWP, where the first BWP is a default BWP for communication with the base station. The UE may receive an indication of a second BWP from the base station that is wider than the first BWP. The indication may, in some cases, be included in a remaining minimum system information (RMSI), a master information block (MIB), or the like. The UE may select, based on the received indication and an operating band of the base station, the second BWP for communications between the UE and the base station. The UE and the base station may communicate using the second BWP.
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公开(公告)号：US20230164815A1
公开(公告)日：2023-05-25
申请号：US17921061
申请日：2020-04-30
Applicant: QUALCOMM Incorporated
Inventor： Chih-Hao LIU , Jing SUN , Xiaoxia ZHANG , Yisheng XUE , Changlong XU , Ozcan OZTURK
CPC classification number: H04W72/40 , H04L5/0053
Abstract: Aspects of the disclosure relate to a user equipment (UE) for establishing a sidelink communication channel and receive mapped channel state information-reference signals (CSI-RS) over a plurality of PSSCH resource blocks. The mapped CSI-RS may be interlaced with resource elements in at least a portion of the plurality of PSSCH resource blocks. The CSI-RS received over the plurality of PSSCH blocks is then processed to determine a channel quality of the sidelink channel from the portion of the plurality of PSSCH resource blocks including the mapped CSI-RS.
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公开(公告)号：US20230139912A1
公开(公告)日：2023-05-04
申请号：US17915286
申请日：2020-05-29
Applicant: QUALCOMM INCORPORATED
Inventor： Xiaoxia ZHANG , Jing SUN , Chih-Hao LIU , Yisheng XUE , Changlong XU , Ozcan OZTURK
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) communicating over sidelink in unlicensed spectrum may perform channel congestion control based on channel busy measurements. For example, a UE may perform channel busy measurement over different resource sets to identify congestion levels from different Radio Access Technologies (RATs). The UE may perform a first channel busy measurement on a first resource set where the first resource set contains resources where sidelink UEs are configured to pause transmission and the UE may perform a second channel busy measurement on a second resource set when sidelink UEs and wireless devices of other RATs are free to contend for resources and transmit. The UE may perform third channel busy measurement on a third resource set where the third resource set contains resources with contention-based access success.
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公开(公告)号：US20230127485A1
公开(公告)日：2023-04-27
申请号：US17905916
申请日：2020-04-15
Applicant: QUALCOMM Incorporated
Inventor： Jing SUN , Xiaoxia ZHANG , Changlong XU , Chih-Hao LIU , Ozcan OZTURK , Yisheng XUE
Abstract: Wireless communications systems and methods related to stand-alone sidelink communication are provided. A first user equipment (UE) determines system parameter information to initiate a sidelink communication. The first UE transmits, in one or more first subbands of a plurality of subbands within a shared radio frequency during a first time period, the system parameter information. The first UE communicates, with a second UE in a second subband of the plurality of subbands during a second time period different from the first time period, sidelink data based on the system parameter information.
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Patent Agency Ranking
26.发明申请公开(公告)号：US20230125461A1
公开(公告)日：2023-04-27
申请号：US17906905
申请日：2020-04-20
Applicant: QUALCOMM Incorporated
Inventor： Changlong XU , Jing SUN , Xiaoxia ZHANG
IPC: H04W72/232 , H04W72/12 , H04W74/08
Abstract: Wireless communications systems and methods related frame based equipment (FBE) communications in a wireless communication network are provided. For example, a method of wireless communication performed by a user equipment can include: monitoring, in a search space of a shared radio frequency band, for a downlink communication from a base station operating in a frame based equipment (FBE) mode; receiving, from the base station based on the monitoring, downlink control information (DCI); determining, based on the received DCI, the DCI does not schedule a physical downlink shared channel (PDSCH) communication for the user equipment; and transmitting, to the base station based on the determining, an uplink communication.
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公开(公告)号：US20230085540A1
公开(公告)日：2023-03-16
申请号：US17759841
申请日：2020-03-12
Applicant: QUALCOMM Incorporated
Inventor： Changlong XU , Xiaoxia ZHANG , Jing SUN
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an uplink grant that schedules a sounding reference signal (SRS) transmission and a physical uplink shared channel (PUSCH) transmission and indicates one or more parameters for determining a cyclic prefix extension. The UE may determine the cyclic prefix extension based at least in part on the one or more parameters. The UE may transmit the SRS transmission with the cyclic prefix extension after performing a listen before talk (LBT) procedure. Numerous other aspects are provided.
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公开(公告)号：US20230080801A1
公开(公告)日：2023-03-16
申请号：US17760437
申请日：2020-02-28
Applicant: QUALCOMM Incorporated
Inventor： Changlong XU , Xiaoxia ZHANG , Jing SUN , Tao LUO
IPC: H04W74/08
Abstract: Methods, systems, and devices for wireless communications are described. A wireless device such as a UE or a base station may implement one or more listen before talk (LBT) techniques. The wireless device may determine to transmit a communication during a transmission time interval on multiple subbands of a radio frequency spectrum band. The wireless device may identify whether the transmission time interval is during a channel occupancy time for the base station for a first set of subbands of the multiple subbands. The wireless device may perform one or more LBT procedures based on the identification. For example, the wireless device may perform an LBT procedure that is selected for each subband based on identifying that the transmission time interval is during the channel occupancy time for the first set of the subbands. The wireless device may transmit the communication based on a result of the LBT procedures.
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公开(公告)号：US20230064684A1
公开(公告)日：2023-03-02
申请号：US17759475
申请日：2020-03-05
Applicant: QUALCOMM Incorporated
Inventor： Changlong XU , Xiaoxia ZHANG , Jing SUN
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may attempt, for up to a threshold quantity of transmission opportunities of a plurality of transmission opportunities of a channel occupancy time in a transmission opportunity aggregation deployment, a listen-before-talk (LBT) procedure; and selectively transmit, based at least in part on the LBT procedure being successful within the threshold quantity of transmission opportunities, one or more repetitions of an uplink transmission in one or more remaining transmission opportunities of the plurality of transmission opportunities, or determine, based at least in part on the LBT procedure not being successful within the threshold quantity of transmission opportunities, that a failure of the uplink transmission has occurred. Numerous other aspects are provided.
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公开(公告)号：US20220376710A1
公开(公告)日：2022-11-24
申请号：US17761262
申请日：2019-09-20
Applicant: Qualcomm Incorporated
Inventor： Changlong XU , Tao LUO , Hao XU
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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