公开(公告)号：US20230095891A1

公开(公告)日：2023-03-30

申请号：US17485006

申请日：2021-09-24

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/12 ,  H04W72/04 ,  H04L1/18

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device, such as a user equipment (UE), may be configured to communicate with one or more other wireless devices (e.g., another UE) via sidelink communications. The first wireless device may receive an indication of a schedule of resources for sidelink communications to be performed over a communication beam, the schedule indicating a set of resources corresponding to a beam configuration for the sidelink communications with a second wireless device. The first wireless device may communicate with the second wireless device via one or more sidelink channels based on configuring the communication beam using the beam configuration over the set of resources. In some examples, the indication of the schedule of resources may be received in a confirmation of the schedule established by the second wireless device or, in some examples, in a request to establish the schedule.

公开(公告)号：US11617178B2

公开(公告)日：2023-03-28

申请号：US17236911

申请日：2021-04-21

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam Sakhnini ,  Tao Luo ,  Xiaoxia Zhang ,  Jing Sun ,  Juan Montojo

IPC: H04W72/04 ,  H04W72/044 ,  H04W72/1273

Abstract: A base station may determine one or more parameters of a PDSCH group including multiple PDSCHs for each beam in a plurality of beams, configure a plurality of resources for communication via the PDSCH group based on the determined one or more parameters of the PDSCH group, and transmit, to a UE, an indication of at least one parameter of the one or more parameters of the PDSCH group via the plurality of resources. The base station may also transmit, via the plurality of resources, one or more PDSCHs based on the at least one parameter of the one or more parameters of the PDSCH group. The UE may receive the indication of at least one parameter of the PDSCH group including multiple PDSCHs for each beam in a plurality of beams, and receive, from the base station, one or more PDSCHs based on the indication.

公开(公告)号：US11616595B2

公开(公告)日：2023-03-28

申请号：US16586453

申请日：2019-09-27

Applicant: QUALCOMM Incorporated

Inventor： Seyed Ali Akbar Fakoorian ,  Xiaoxia Zhang ,  Jing Sun

IPC: H04L12/00 ,  H04L1/00 ,  H04L5/00 ,  H04B17/318 ,  H04W74/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may perform rate matching of coded bits of each transport block, of a plurality of transport blocks, on a per-channel basis among a plurality of channels in a wideband channel of an unlicensed spectrum. The rate matching is performed on the per-channel basis in a first set of slots and such that coded bits of each transport block are mapped to a respective one of the plurality of channels. The wireless communication device may receive, after a transmission of the plurality of transport blocks on the plurality of channels, per-channel acknowledgment information. The wireless communication device may selectively adjust a plurality of contention windows, each associated with a listen before talk procedure to be performed on a respective one of the plurality of channels. Numerous other aspects are provided.

公开(公告)号：US11611980B2

公开(公告)日：2023-03-21

申请号：US17244680

申请日：2021-04-29

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Abdelaziz Ibrahim Abdelaziz Zewail ,  Zhifei Fan ,  Xiaoxia Zhang ,  Jing Sun ,  Tao Luo

IPC: H04W72/12 ,  H04L41/0813 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. In a first example, the user equipment (UE) may receive sidelink control information scheduling resources for a sidelink data transmission spanning a set of tones and indicating a demodulation reference signal (DMRS) pattern. The UE may identify that each tone of the set of tones is configured to carry a DMRS for a symbol of the DMRS pattern and may receive the sidelink data transmission based on the symbol of the DMRS pattern carrying the DMRS for each tone. In a second example, the UE may receive control signaling indicating a configuration for a non-overlapping relationship between a first resource for receiving a DMRS and a second resource for receiving a phase tracking reference signal. The UE may receive the DMRS over the first resource and the phase tracking reference signal over the second resource based on the non-overlapping relationship.

公开(公告)号：US11611411B2

公开(公告)日：2023-03-21

申请号：US16949485

申请日：2020-10-30

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Xiaoxia Zhang ,  Jing Sun ,  Peter Pui Lok Ang

IPC: H04L1/18 ,  H04W72/04 ,  H04L1/1812

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. A user equipment (UE) may receive, via a control channel in a primary cell, one or more downlink control information (DCI) messages that include a secondary cell (SCell) dormancy indication and a request for hybrid automatic repeat request (HARQ) feedback. The DCI messages may have a format associated with downlink scheduling, and fields used to carry the SCell dormancy indication and the request for HARQ feedback may have a configuration that depends on whether the DCI messages are used to schedule a downlink data transmission. Furthermore, in some aspects, a DCI message may include a field that has a value to indicate whether the DCI message does or does not schedule a downlink data transmission, to enable the UE to correctly receive and decode the SCell dormancy indication and the request for HARQ feedback.

公开(公告)号：US20230085403A1

公开(公告)日：2023-03-16

申请号：US17471632

申请日：2021-09-10

Applicant: QUALCOMM Incorporated

Inventor： Jianghong Luo ,  Jing Sun ,  Xiaoxia Zhang ,  Navid Abedini ,  Naeem Akl ,  Junyi Li ,  Tao Luo

IPC: H04W74/08 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described. For example, a first communication device may receive, from a second communication device, control signaling triggering a channel access procedure at the first communication device. In some case, the channel access procedure may be for accessing the shared radio frequency spectrum. The first communication device may then perform the channel access procedure based on the control signaling. In some examples, the first communication device may, based on the channel access procedure, transmit an indication of a channel occupancy initiated by the first communication device to the second communication device. The first communication device may relay communications between the second communication device and a third communication device during a channel occupancy time (COT) based on the transmitted indication of the channel occupancy initiated by the first communication device.

公开(公告)号：US11601976B2

公开(公告)日：2023-03-07

申请号：US17124964

申请日：2020-12-17

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Xiaoxia Zhang ,  Chih-Hao Liu ,  Aleksandar Damnjanovic ,  Jing Sun ,  Yongbin Wei

IPC: H04W74/08 ,  H04W74/00 ,  H04W80/02 ,  H04W72/044 ,  H04W72/04 ,  H04B1/713

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device (base station or UE) may receive an indication of a listen before talk (LBT) gap for sharing a channel occupancy time (COT), the COT being acquired by another wireless device (base station or UE), and detect whether a slot within the COT is occupied by the other wireless device, the slot occurring prior to the LBT gap. The wireless device may also, responsive to detecting that the slot is occupied by the other wireless device, perform an LBT procedure during the LBT gap, and, responsive to a successful LBT procedure, transmit a signal to the other wireless device within the COT.

公开(公告)号：US11601975B2

公开(公告)日：2023-03-07

申请号：US16685891

申请日：2019-11-15

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Aleksandar Damnjanovic ,  Jing Sun

IPC: H04W74/08 ,  H04W72/04 ,  H04W56/00 ,  H04W48/16 ,  H04W16/14 ,  H04L5/00 ,  H04B7/06 ,  H04W72/0446 ,  H04W16/28 ,  H04B7/0408

Abstract: Wireless communications systems and methods related to performing spatial-specific listen-before-talk (LBT) with discovery signal transmissions for spectrum sharing are provided. A wireless communication device senses a channel in a spatial domain based on a plurality of expected beam transmission directions. The sensing includes sweeping through multiple directional reception beams and listening to the channel in a direction of each of the multiple directional reception beams. After the sensing, the wireless communication device transmits a channel reservation signal using an omnidirectional transmission beam and also transmits a plurality of discovery signals in one or more of the plurality of expected beam transmission directions during a discovery period to facilitate synchronization in the channel based on the sensing.

公开(公告)号：US20230067706A1

公开(公告)日：2023-03-02

申请号：US17458223

申请日：2021-08-26

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Yisheng Xue ,  Jing Sun ,  Lik Hang Silas Fong ,  Xiaoxia Zhang

IPC: H04W72/04 ,  H04L5/00 ,  H04W52/02

Abstract: Methods, systems, and devices for wireless communications are described. A sidelink message may be scheduled for a UE during a first short transmission time interval (TTI). The first short TTI and a second short TTI for transmitting a sidelink feedback message corresponding to the sidelink message may both be shorter in duration than a another, longer type of TTI. The UE may transmit automatic gain control information in a first symbol period of the second TTI, transmit the sidelink feedback message in a second symbol period of the second TTI (after the first symbol period of the second TTI), and switch from operating in a transmitting mode to operating in a receiving mode during a third symbol period of the second TTI (after the second symbol period of the second TTI).

公开(公告)号：US11595891B2

公开(公告)日：2023-02-28

申请号：US16789400

申请日：2020-02-12

Applicant: QUALCOMM incorporated

Inventor： Sungwoo Park ,  Xiaoxia Zhang ,  Mostafa Khoshnevisan ,  Tao Luo ,  Jing Sun ,  Wooseok Nam

IPC: H04W52/02 ,  H04W72/04 ,  H04W76/27 ,  H04W76/28

Abstract: Methods, systems, and devices for wireless communications are described in which a user equipment (UE) may monitor for transmissions during an on-duration of a discontinuous reception cycle. The UE may receive one or more go-to-sleep indications from one or more transmission/reception points (TRPs), and may discontinue monitoring for transmissions from one or more of the TRPs responsive to the one or more go-to-sleep indications. Each TRP of the two or more TRPs may transmit a separate per-TRP go-to-sleep signal that indicates that the TRP will not transmit during a time period associated the go-to-sleep signal. In other cases, a TRP may transmit a cross-TRP go-to-sleep signal that has go-to-sleep indications for multiple TRPs.