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公开(公告)号:US20230012562A1
公开(公告)日:2023-01-19
申请号:US17377100
申请日:2021-07-15
Applicant: QUALCOMM Incorporated
Inventor: Chih-Hao LIU , Jing SUN , Lik Hang Silas FONG , Yisheng XUE , Xiaoxia ZHANG , Jung Ho RYU
Abstract: Wireless communications systems and methods related to communicating information are provided. A method of wireless communication performed by a user equipment (UE) may include mapping a sub-physical sidelink shared channel (sub-PSSCH), sidelink control information (SCI), and an automatic gain control (AGC) symbol to a sub-slot of a plurality of sub-slots of a slot and transmitting, to at least one other UE, a transport block via the sub-PSSCH of the sub-slot.
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公开(公告)号:US20230010997A1
公开(公告)日:2023-01-12
申请号:US17305595
申请日:2021-07-09
Applicant: QUALCOMM Incorporated
Inventor: Yisheng XUE , Jing SUN , Chih-Hao LIU , Xiaoxia ZHANG
Abstract: This disclosure provides systems, methods and apparatuses for indicating sidelink processes for sidelink feedback. A second user equipment (UE) may request hybrid automatic repeat request (HARQ) responses from a first UE for a particular set of sidelink processes over a physical sidelink feedback channel. To indicate multiple sidelink processes, the second UE may indicate, in sidelink control information, a window of sidelink processes. The window may be a sliding window that starts with a starting sidelink process and extends through other sidelink processes. The second UE may transmit data for the sidelink processes in the sliding window and receive feedback for the indicated sidelink processes. In some aspects, the first UE may select, in coordination with the second UE, the sidelink processes for which feedback is to be provided.
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公开(公告)号:US20230008259A1
公开(公告)日:2023-01-12
申请号:US17372069
申请日:2021-07-09
Applicant: QUALCOMM Incorporated
Inventor: Yisheng XUE , Xiaoxia ZHANG , Chih-Hao LIU , Jing SUN
Abstract: Some aspects described herein relate to configuring user equipment (UE) for transmitting sidelink communications. A sidelink grant for transmitting sidelink communications over multiple contiguous subchannels across multiple resource block (RB) sets in a slot can be received. A listen-before-talk (LBT) procedure can be performed over the multiple RB sets in the slot. Sidelink communications can be transmitted to one or more other UEs in the multiple contiguous subchannels across at least a subset of the multiple RB sets in the slot for which the LBT procedure succeeds
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公开(公告)号:US20220417908A1
公开(公告)日:2022-12-29
申请号:US17304830
申请日:2021-06-25
Applicant: QUALCOMM Incorporated
Inventor: Yisheng XUE , Xiaojie WANG , Jing SUN , Chih-Hao LIU , Xiaoxia ZHANG
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 sensing an interference level of at least one frequency, selecting, based on the interference level, a frequency, and communicating sidelink control information (SCI) in the selected frequency.
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55.
公开(公告)号:US20220394761A1
公开(公告)日:2022-12-08
申请号:US17341322
申请日:2021-06-07
Applicant: QUALCOMM Incorporated
Inventor: Chih-Hao LIU , Jing SUN , Yisheng XUE , Xiaoxia ZHANG , Piyush GUPTA , Sony AKKARAKARAN , Tao LUO , Juan MONTOJO , Peter GAAL
Abstract: Certain aspects of the present disclosure provide a method for wireless communications by a transmitter UE. The method generally includes receiving, from a network entity, a downlink control information (DCI) allocating resources in an unlicensed frequency band for multiple physical sidelink shared channel (PSSCH) transmissions to at least one receiver UE across transmission time intervals (TTIs), performing a listen-before-talk (LBT) channel access procedure in the TTIs, and transmitting at least one LBT report to the network entity on a physical uplink control channel (PUCCH) resource that occurs before another PUCCH resource used for transmitting acknowledgment feedback for the PSSCH transmissions.
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公开(公告)号:US20220386318A1
公开(公告)日:2022-12-01
申请号:US17303344
申请日:2021-05-27
Applicant: QUALCOMM Incorporated
Inventor: Chih-Hao LIU , Jing SUN , Yisheng XUE , Xiaoxia ZHANG , Shuanshuan WU
IPC: H04W72/12
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, on an access link from a base station, a first downlink control information (DCI) that schedules a first communication on a physical sidelink shared channel (PSSCH) and a second DCI that schedules a second communication on the PSSCH. The first communication and the second communication may be scheduled according to a rule for overlapping or ordering communications on the PSSCH that are associated with one or more hybrid automatic repeat request identifiers. The UE may transmit the first communication and the second communication as scheduled. Numerous other aspects are described.
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公开(公告)号:US20220369344A1
公开(公告)日:2022-11-17
申请号:US17321132
申请日:2021-05-14
Applicant: QUALCOMM Incorporated
Inventor: Chih-Hao LIU , Yisheng XUE , Jing SUN , Xiaoxia ZHANG , Ozcan OZTURK , Tao LUO , Juan MONTOJO , Peter GAAL , Sony AKKARAKARAN
Abstract: Aspects of the present disclosure provide systems and methods for assigning one or more user equipments (UEs) at one or more corresponding starting positions of multiple slots to perform channel access procedures, such as listen before talk (LBT) procedures in New Radio unlicensed band (NR-U) sidelink communications. The network entity may indicate, to a UE, a starting position in a multi-opportunity grant (e.g., a DCI scheduling multiple slots). The network entity may multiplex different transmitter UEs with different starting positions. If the channel accessing procedure is successful, the transmitter UE with the earliest starting position than the rest may block the rest of the transmitter UEs. In some cases, starting position hopping may be used so that the multiple UEs may have different priority at different slots. In some cases, the DCI may include LBT parameters that are inherited from NR-U uplink transmission configurations.
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58.
公开(公告)号:US20220330306A1
公开(公告)日:2022-10-13
申请号:US17716695
申请日:2022-04-08
Applicant: QUALCOMM Incorporated
Inventor: Xiaoxia ZHANG , Jing SUN , Yisheng XUE , Chih-Hao LIU , Ozcan OZTURK , Qing LI
Abstract: Aspects described herein relate to sidelink transmissions. In an example, a first user equipment (UE) may receive, from a network entity, a first sidelink grant for a transmission between the first UE and a second UE; communicate the transmission according to the first sidelink grant to the second UE; determine initiation of a sidelink round trip timer subsequent to communicating the transmission to the second UE; and initiate an inactive mode for the first UE based on a second grant not being received from the network entity before completion of a duration of a sidelink retransmission timer that was initiated upon completion of a duration of the sidelink round trip timer, the first UE being configured out of an ON duration of a discontinuous reception (DRX) cycle, and an inactivity timer expiring before completion of the duration of the sidelink retransmission timer.
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公开(公告)号:US20220095369A1
公开(公告)日:2022-03-24
申请号:US17445306
申请日:2021-08-17
Applicant: QUALCOMM Incorporated
Inventor: Yisheng XUE , Chih-Hao LIU , Jing SUN , Xiaoxia ZHANG
Abstract: Wireless communications systems and methods related to multiple starting points for new radio sidelink transmission over unlicensed band are provided. In some aspects, a UE may perform a channel access procedure to access a first physical sidelink shared channel (PSSCH) transmission resource of an unlicensed new radio spectrum. In some aspects, the first PSSCH transmission resource may be reserved by a control message and may include a plurality of transmission starting points. Further, the first UE may transmit first data to a second UE via the first PSSCH transmission resource starting at a later transmission starting point than one or more prior transmission starting points of the plurality of transmission starting points when the performing the channel access procedure fails at each of the one or more prior transmission starting points.
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公开(公告)号:US20220061095A1
公开(公告)日:2022-02-24
申请号:US17305454
申请日:2021-07-07
Applicant: QUALCOMM Incorporated
Inventor: Yisheng XUE , Jing SUN , Chih-Hao LIU , Xiaoxia ZHANG , Ozcan OZTURK , Tao LUO
Abstract: Wireless communications systems and methods related to LBT aware autonomous sidelink sensing are provided. A first UE determines, based on a projected listen-before-talk (LBT) completion time, at least one of a sensing window or a first resource selection window. The first UE senses, based on the determining, in a sidelink resource pool within a shared radio frequency band during the sensing window. The first UE identifies, based on the sensing, a subset of resources from the sidelink resource pool that are within the first resource selection window. The first UE selects at least a first resource from the subset of resources. The first UE transmits, to a second UE using the selected first resource, a sidelink transmission.
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