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公开(公告)号：US12273914B2
公开(公告)日：2025-04-08
申请号：US17877734
申请日：2022-07-29
Applicant: QUALCOMM Incorporated
Inventor： Yisheng Xue , Jing Sun , Chih-Hao Liu , Xiaoxia Zhang , Giovanni Chisci
Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for sidelink channel access via a floating channel occupancy. In some aspects, a cellular device may operate within a proximity of one or more wireless fidelity (Wi-Fi) devices and may conditionally support a search space associated with a floating sidelink synchronization signal block (SSB). For example, if the cellular device detects that the Wi-Fi devices are precluding the cellular device from acquiring channel access or otherwise making it relatively more difficult for the cellular device to acquire channel access, the cellular device may enable or active a use of the search space associated with the floating sidelink SSB. If enabled or activated, the cellular device may transmit a floating sidelink SSB within the search space independent of slot boundaries upon a successful listen-before-talk (LBT) procedure.
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公开(公告)号：US12267860B2
公开(公告)日：2025-04-01
申请号：US18465937
申请日：2023-09-12
Applicant: QUALCOMM Incorporated
Inventor： Yisheng Xue , Xiaoxia Zhang , Chih-Hao Liu , Jing Sun , Tao Luo
IPC: H04W72/541 , H04W72/1263 , H04W74/0816 , H04W72/0446
Abstract: This disclosure provides systems, methods, and devices for wireless communication that support relaxed sensing for new radio (NR) sidelink over millimeter wave (mmW) operating frequencies. In a first aspect, a method by a user equipment (UE) of wireless communication includes identifying a resource selection trigger that indicates selection of one or more sidelink slots from a resource selection window. The UE may obtain long-term interference sensing statistics observed by the UE prior to the resource selection trigger. The UE can reduce a default sensing window length in accordance with the long-term interference sensing statistics and transmit a sidelink transmission in the selected sidelink slots. Other aspects and features are also claimed and described.
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公开(公告)号：US12256399B2
公开(公告)日：2025-03-18
申请号：US17328986
申请日：2021-05-24
Applicant: QUALCOMM Incorporated
Inventor： Yisheng Xue , Jing Sun , Xiaoxia Zhang , Chih-Hao Liu , Ozcan Ozturk , Lik Hang Silas Fong , Sony Akkarakaran
IPC: H04W72/00 , H04L1/00 , H04L1/1812 , H04W72/0446 , H04W72/21 , H04W72/23 , H04W74/0816 , H04W92/18
Abstract: A method performed by a first sidelink (SL) user equipment (UE) includes receiving a downlink control information (DCI) from a number of coupled DCIs. The DCI grants reception of a number of scheduled physical SL shared channels (PSSCHs) over an unlicensed SL carrier, and requests a hybrid automatic repeat request (HARQ) response for the scheduled PSSCHs. The method also includes receiving at least one of the PSSCHs from a second SL UE. The method further includes transmitting the HARQ response based on the at least one received PSSCH.
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公开(公告)号：US12225483B2
公开(公告)日：2025-02-11
申请号：US17695549
申请日：2022-03-15
Applicant: QUALCOMM Incorporated
Inventor： Chih-Hao Liu , Jing Sun , Yisheng Xue , Xiaoxia Zhang
IPC: H04W56/00 , H04W72/0446 , H04W72/20 , H04W92/18
Abstract: In the context of a slot of a sidelink (SL) communication frame of a user equipment (UE), the slot is configured with a resource element allocation comprising an SL synchronization signal block (S-SSB) occupying a plurality of less than all symbols of the slot, and a plurality of less than all subcarriers of a channel of the slot. The UE determines that an occupied channel bandwidth (OCB) constraint for the slot across the channel will not be met with the resource element allocation. The UE then multiplexes, in response to the determining, a reference signal (RS) across the symbols occupied by the S-SSB in a plurality of resource blocks of the channel not occupied by the S-SSB to meet the OCB constraint. The UE then transmits the slot with the S-SSB and the multiplexed RS.
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公开(公告)号：US12213127B2
公开(公告)日：2025-01-28
申请号：US17474622
申请日：2021-09-14
Applicant: QUALCOMM Incorporated
Inventor： Xiaojie Wang , Yisheng Xue , Piyush Gupta , Jing Sun , Xiaoxia Zhang , Lik Hang Silas Fong
Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for a first user equipment (UE) to manage the reuse of resources reserved for sidelink communications by the UE. The first UE may identify scheduling information for a sidelink shared channel between the first UE and a second UE, and the first UE may reserve a set of resources for subsequent sidelink communications by the first UE. The first UE may transmit a sidelink control message indicating the scheduling information and the reserved resources to one or more neighboring UEs. The sidelink control message may include a reuse allowance indicator that may indicate whether the set of reserved resources is available for spatial reuse by the neighboring UEs. The neighboring UEs may determine whether the reuse the reserved resources based on the control message, the reuse allowance indicator, or both.
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Patent Agency Ranking
公开(公告)号：US12213008B2
公开(公告)日：2025-01-28
申请号：US17313654
申请日：2021-05-06
Applicant: QUALCOMM Incorporated
Inventor： Xiaoxia Zhang , Chih-Hao Liu , Yisheng Xue , Jing Sun , Sony Akkarakaran , Tao Luo
Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a user equipment (UE) may receive control signaling indicating a configuration for performing a sidelink discontinuous reception procedure, where the configuration indicates a duration of a timer associated with an active duration for the first UE to receive sidelink retransmissions during the sidelink discontinuous reception procedure. The UE may then receive a first sidelink communication including data and may, in some cases, transmit feedback requesting a retransmission of the data. The UE may then receive second sidelink communication including the retransmitted data. Prior to receiving the second sidelink communication including the retransmitted data, the UE may initiate the timer according to the configuration. Thus, the UE may be in an active mode to receive the second sidelink communication.
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公开(公告)号：US12193031B2
公开(公告)日：2025-01-07
申请号：US18543679
申请日：2023-12-18
Applicant: QUALCOMM Incorporated
Inventor： Yisheng Xue , Jing Sun , Chih-Hao Liu , Xiaoxia Zhang , Tao Luo , Piyush Gupta
IPC: H04W72/23 , H04L1/1812 , H04L1/1867 , H04W72/044 , H04W72/1263 , H04W72/20
Abstract: This disclosure provides systems, methods, and devices for wireless communication that support configured reception with sidelink control information (SCI) repetition over a sidelink. In aspects, a receiving user equipment (UE) may be configured to conduct combined reception/decoding of SCI repetitions (received from a transmitting UE over a sidelink) over multiple time-frequency slots at pre-defined occasions (e.g., occasions configured by a base station) to decode a sidelink transmission. In aspects, a receiving UE may receive from a transmitting UE over a sidelink, a sidelink transmission during a reception occasion that includes a plurality of reception opportunities for the receiving UE. Each reception opportunity of the plurality of reception opportunities includes a repetition of an SCI. The receiving UE decodes the SCI by combining the repetitions of the SCI received in one or more reception opportunities, and decodes a data transmission (e.g., a physical sidelink shared channel (PSSCH) transmission) using the decoded SCI.
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218.发明授权公开(公告)号：US12155492B2
公开(公告)日：2024-11-26
申请号：US17697354
申请日：2022-03-17
Applicant: QUALCOMM Incorporated
Inventor： Yisheng Xue , Jing Sun , Chih-Hao Liu , Xiaoxia Zhang
IPC: H04L1/1867 , H04L1/1812
Abstract: Certain aspects of the present disclosure provide a method for wireless communications by a transmitter user equipment (UE). The method may include receiving (e.g., from a network entity) a configuration of a first resource pool associated with a second resource pool. The first resource pool includes physical sidelink feedback channel (PSFCH) resources for hybrid automatic repeat request (HARQ) responses for physical sidelink shared channel (PSSCH) transmissions in the second resource pool. The method further includes transmitting (e.g., to a receiver UE) a PSSCH on a resource in the second resource pool and a request for a HARQ response for the PSSCH from a PSFCH resource in the first resource pool. The method further includes receiving (e.g., from the receiver UE) the HARQ response over the PSFCH resource (e.g., in response to the PSSCH).
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公开(公告)号：US12144012B2
公开(公告)日：2024-11-12
申请号：US17592358
申请日：2022-02-03
Applicant: QUALCOMM Incorporated
Inventor： Yisheng Xue , Jing Sun , Xiaoxia Zhang , Chih-Hao Liu
IPC: H04W72/542 , H04B7/0408 , H04W72/02 , H04W72/20 , H04W92/18
Abstract: Methods, systems, and devices for wireless communications are described. Aspects of the present disclosure provide for a user equipment (UE) performing contention-based access to utilize historical pathloss measurements to identify available resources for beamformed sidelink communications. The historical pathloss measurements may be obtained by the UE, by one or more other UEs, or both, where the UE may combine its own historical pathloss measurements with historical pathloss measurements obtained at the one or more other UEs. Such historical pathloss measurements may allow the UE to determine if one or more beam combinations associated with the resources may cause unacceptable interference (e.g., interference satisfying a threshold) while reducing signaling overhead associated with exchanges of inter-UE coordination messages. Accordingly, the UE may determine to yield transmissions over one or more resources or to yield reception to allow other UEs to utilize the one or more resources.
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公开(公告)号：US12120554B2
公开(公告)日：2024-10-15
申请号：US17506384
申请日：2021-10-20
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Chih-Hao Liu , Yisheng Xue , Xiaoxia Zhang
CPC classification number: H04W28/26 , H04B7/2656 , H04W72/23
Abstract: Techniques for dynamic time duplex division (TDD) with reservation signal and contention may include a first network node configured to select a first resource to reserve for use of a downlink (DL) transmission or an uplink (UL) transmission. The first network node may also be configured to transmit, to a second network node, a reservation signal on a reservation signal resource to announce that the first resource is reserved for use of the DL transmission or the UL transmission by the first network node. The reservation signal resource may be associated with the first resource.
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