公开(公告)号：US11902934B2

公开(公告)日：2024-02-13

申请号：US17249173

申请日：2021-02-22

Applicant: QUALCOMM INCORPORATED

Inventor： Chih-Hao Liu ,  Yisheng Xue ,  Xiaoxia Zhang

IPC: H04W68/02 ,  H04B1/713 ,  H04W72/23

CPC classification number: H04W68/02 ,  H04B1/713 ,  H04W72/23

Abstract: Wireless communications systems and methods related to performing paging operations in a shared radio frequency band (e.g., in a shared spectrum or an unlicensed spectrum) with an improved paging reliability. A first user equipment (UE) determines a frequency hopping pattern for a paging occasion window (POW) in a plurality of frequency subbands within a shared radio frequency band. The first UE monitors for a paging message from a base station (BS) in the POW, where the monitoring includes hopping from at least a first frequency subband of the plurality of frequency subbands to a second frequency subband of the plurality of frequency subbands based on the frequency hopping pattern.

公开(公告)号：US11902801B2

公开(公告)日：2024-02-13

申请号：US17304627

申请日：2021-06-23

Applicant: QUALCOMM INCORPORATED

Inventor： Chih-Hao Liu ,  Jing Sun ,  Xiaoxia Zhang ,  Yisheng Xue ,  Ozcan Ozturk ,  Tao Luo ,  Sony Akkarakaran ,  Juan Montojo

IPC: H04W24/10 ,  H04W16/28 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/20

CPC classification number: H04W16/28 ,  H04L5/0048 ,  H04W24/10 ,  H04W72/0446 ,  H04W72/20

Abstract: Wireless communications systems and methods related to intra-slot transmit beam selection and receive beam selection for sidelink are provided. A first user equipment (UE) transmits, to a second UE over a sidelink, a plurality of beam measurement signals in a plurality of beam directions during a first slot, wherein each beam measurement signal of the plurality of beam measurement signals includes at least one of sidelink control information (SCI) or a channel state information-reference signal (CSI-RS), and wherein the plurality of beam directions includes at least two different beam directions. The first UE receives, from the second UE, an indication of a preferred beam direction of the plurality of beam directions. The first UE transmits, to the second UE over the sidelink, data in the preferred beam direction.

公开(公告)号：US11863315B2

公开(公告)日：2024-01-02

申请号：US16130877

申请日：2018-09-13

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Srinivas Yerramalli ,  Tamer Kadous

IPC: H04L1/00 ,  H04L5/00 ,  H04W16/14 ,  H04W4/70 ,  H04W72/21

CPC classification number: H04L1/0013 ,  H04L5/0055 ,  H04L5/0064 ,  H04W4/70 ,  H04W16/14 ,  H04W72/21 ,  H04L5/0007 ,  H04L5/0044

Abstract: Some techniques and apparatuses described herein may be used to avoid or reduce collisions between uplink data communications and uplink control communications for an enhanced machine-type communication user equipment (eMTC UE) operating in an unlicensed radio frequency spectrum band. Furthermore, some techniques and apparatuses may avoid such collision while still allowing efficient use of resources, such as by deferring the uplink data communication within a data segment, rate matching an uplink data communication around uplink control resources (e.g., cell-specific uplink control resources and/or UE-specific uplink control resources), puncturing the uplink data communication to avoid the uplink control resources, multiplexing uplink control information on an uplink data channel, and/or the like.

公开(公告)号：US11825475B2

公开(公告)日：2023-11-21

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

IPC: H04W4/00 ,  H04W72/20 ,  H04W52/52 ,  H04W72/0446

CPC classification number: H04W72/20 ,  H04W52/52 ,  H04W72/0446

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.

公开(公告)号：US11812474B2

公开(公告)日：2023-11-07

申请号：US17229642

申请日：2021-04-13

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Jing Sun ,  Xiaoxia Zhang ,  Chih-Hao Liu ,  Ozcan Ozturk

IPC: H04L5/00 ,  H04L5/14 ,  H04W76/14 ,  H04W74/00 ,  H04W74/08 ,  H04W16/14 ,  H04W72/20 ,  H04W72/044

CPC classification number: H04W74/0833 ,  H04W16/14 ,  H04W72/20 ,  H04W74/0808 ,  H04W72/044

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, user equipment (UEs) may communicate over sidelink channels in a shared (e.g., unlicensed) channel bandwidth. A UE may implement sub-channel-based occupancy time sharing for the unlicensed sidelink to improve resource usage. The UE may gain access to the shared channel bandwidth for an occupancy time and may transmit a sharing indicator indicating a portion of resources of the shared channel bandwidth for the occupancy time. The UE may transmit a time-division multiplexing sharing indicator to share a portion of slots of the occupancy time, a frequency-division multiplexing sharing indicator to share a portion of sub-channels of the shared channel bandwidth, or some combination thereof. A UE receiving the sharing indicator may identify the shared resources and may transmit in these shared resources (e.g., without performing a full contention process for an occupancy time).

公开(公告)号：US11805511B2

公开(公告)日：2023-10-31

申请号：US17408148

申请日：2021-08-20

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Xiaoxia Zhang ,  Jing Sun ,  Chih-Hao Liu ,  Tao Luo

IPC: H04W72/1263 ,  H04L1/00 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/23

CPC classification number: H04W72/1263 ,  H04L1/0004 ,  H04L5/0051 ,  H04W72/0446 ,  H04W72/23

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support cross-slot scheduling of sidelink transmissions in a wireless communication system. A transmitting user equipment (UE) in communication with a receiving UE over a sidelink transmits cross-slot schedule information to the receiving UE at a time prior to a first slot over which a physical sidelink shared channel (PSSCH) transmission is to be transmitted to the receiving UE. The cross-slot schedule information includes information that is sufficient to decode the PSSCH transmission received by the receiving UE at the first slot, without requiring the receiving UE to decode a physical sidelink control channel (PSCCH) transmission including a sidelink control information (SCI) message received during the first slot. In aspects, the PSSCH transmission may be decoded in parallel with the PSCCH transmission received in the first slot.

公开(公告)号：US11792837B2

公开(公告)日：2023-10-17

申请号：US17395390

申请日：2021-08-05

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Xiaoxia Zhang ,  Chih-Hao Liu ,  Jing Sun

IPC: H04L5/00 ,  H04W72/20 ,  H04W92/18 ,  H04W72/542 ,  H04W72/0446 ,  H04W72/0453

CPC classification number: H04W72/542 ,  H04L5/0057 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/20 ,  H04W92/18

Abstract: Apparatus, methods, and computer-readable media for facilitating opportunistic CSI for sidelink communication are disclosed herein. An example method for wireless communication at a responding sidelink UE includes receiving, from an initiating sidelink UE, a request to provide CSI feedback to the initiating sidelink UE, the request excluding a CSI-RS. The example method also includes decoding a transmission from the initiating sidelink UE to a neighboring sidelink UE, the transmission including a CSI feedback trigger. The example method also includes transmitting, to the initiating sidelink UE, a CSI report based on the transmission.

公开(公告)号：US11778589B2

公开(公告)日：2023-10-03

申请号：US17150901

申请日：2021-01-15

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Yisheng Xue ,  Aleksandar Damnjanovic ,  Jing Sun ,  Xiaoxia Zhang ,  Rajat Prakash ,  Juan Montojo ,  Tao Luo

IPC: H04W72/02 ,  H04W28/26 ,  H04W74/08 ,  H04W72/20 ,  H04W92/18

CPC classification number: H04W72/02 ,  H04W28/26 ,  H04W72/20 ,  H04W74/0816 ,  H04W92/18

Abstract: A first UE in a UE group may determine that a sidelink channel is available for data transmission and transmit SCI reserving a COT on the sidelink channel. A second may receive, from the first UE, the SCI reserving the COT on the sidelink channel and transmitting the sidelink transmission on the sidelink channel using one or more resources of the inter-group sharable resources. The COT may include a first set of resources reserved for the first UE, an intra-group sharable resources capable of being shared by the UE group, and an inter-group sharable resources capable of being shared by the second UE outside of the UE group. The second UE may perform the CAT 1 or CAT 2 LBT procedure to contend for the inter-group sharable resources. The access to the inter-group sharable resources may be limited.

公开(公告)号：US20230309099A1

公开(公告)日：2023-09-28

申请号：US17704910

申请日：2022-03-25

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Jing Sun ,  Yisheng Xue ,  Xiaoxia Zhang

IPC: H04W72/04

CPC classification number: H04W72/0406

Abstract: Methods, systems, and devices for wireless communications are described to support resource block (RB) grid alignment at user equipments (UE) in sidelink communications. In a first example, communicating UEs may support different RB grids and a receiving UE may attempt multiple decoding hypotheses for receiving a sidelink control channel from a transmitting UE, where each hypothesis may correspond to a different RB grid. In a second example, an RB grid for a sidelink control channel may be common, or aligned, for a transmitting UE and a receiving UE, such that the receiving UE may receive the sidelink control channel using the common RB grid. In a third example, demodulation reference signals (DMRSs) and resource element (RE) rate matching for a sidelink control channel may be common, or aligned, for a transmitting UE and a receiving UE, such that the receiving UE may receive the control channel using the aligned DMRSs.

公开(公告)号：US11736261B2

公开(公告)日：2023-08-22

申请号：US17344423

申请日：2021-06-10

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Xiaoxia Zhang ,  Jing Sun ,  Chih-Hao Liu

IPC: H04W4/00 ,  H04L5/00 ,  H04L1/1812 ,  H04W16/14 ,  H04W72/0446 ,  H04W74/08

CPC classification number: H04L5/0094 ,  H04L1/1812 ,  H04W16/14 ,  H04W72/0446 ,  H04W74/0808

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may transmit, to a second UE via a sidelink sub-channel of a licensed carrier, an indication of multiple data channels of an unlicensed carrier to be used to attempt one or more sidelink communications between the first UE and the second UE. The UE may attempt the one or more sidelink communications between the first UE and the second UE using the multiple data channels. Numerous other aspects are provided.