公开(公告)号：US20220225374A1

公开(公告)日：2022-07-14

申请号：US17144990

申请日：2021-01-08

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Piyush Gupta ,  Junyi Li ,  Jing Sun ,  Xiaoxia Zhang

IPC: H04W72/12 ,  H04L5/14 ,  H04L1/00

Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications networks, a first wireless device may transmit sidelink control information to a second wireless device, which includes a first scheduling for an uplink transmission by a second wireless device during a first slot. The second wireless device may decode the sidelink control information to determine an operating mode of the first wireless device during the first slot, such as a transmitting mode or a receiving mode. Based on the operating mode, the second wireless device may drop or delay the uplink transmission. In some cases, the first wireless device may schedule an uplink transmission to be performed by the second wireless device during a second slot, and the first wireless device may switch from a transmitting mode to a receiving mode in order to receive the scheduled uplink transmission from the second wireless device.

公开(公告)号：US20220201667A1

公开(公告)日：2022-06-23

申请号：US17125659

申请日：2020-12-17

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Jing Sun ,  Junyi Li ,  Piyush Gupta ,  Jung Ho Ryu ,  Sony Akkarakaran ,  Arumugam Chendamarai Kannan ,  Xiaoxia Zhang ,  Tao Luo ,  Juan Montojo ,  Ozcan Ozturk

IPC: H04W72/04 ,  H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described. A transmitting user equipment (UE) may determine a set of resources for sidelink communication with one or more neighboring UEs. The transmitting UE may transmit multiple sidelink control messages to the neighboring UEs indicating the set of resources are reserved for a sidelink data message. The neighboring UEs may receive at least one of the sidelink control messages. A neighboring UE may determine a portion of the resources are reserved for a sidelink data message with the transmitting UE and may transmit or receive the sidelink data message using the portion of the resources. Additionally or alternatively, a neighboring UE may determine the resources are reserved for a sidelink data message between the transmitting UE and another neighboring UE and may select alternative resources for sidelink data messages to may avoid using the reserved resources.

公开(公告)号：US11362763B2

公开(公告)日：2022-06-14

申请号：US17301996

申请日：2021-04-21

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Junyi Li ,  Chong Li ,  Hua Wang ,  Karl Georg Hampel

IPC: H04B7/024 ,  H04L1/00 ,  H04W28/04 ,  H04L1/18 ,  H04W88/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a plurality of communications from a corresponding plurality of transmission/reception points (TRPs) included in a coordinated multipoint network. At least two communications, of the plurality of communications, may have different redundancy versions from a common codebook, and may be received in a same transmission time interval (TTI). The UE may decode the plurality of communications using joint decoding. Numerous other aspects are provided.

公开(公告)号：US20220174711A1

公开(公告)日：2022-06-02

申请号：US17110216

申请日：2020-12-02

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Yisheng Xue ,  Jing Sun ,  Junyi Li ,  Piyush Gupta ,  Xiaoxia Zhang ,  Ozcan Ozturk

IPC: H04W72/12 ,  H04L12/26 ,  H04W24/10

Abstract: Methods, systems, and devices for wireless communications are described to support resource selection for a sidelink transmission based on a priority of available resources. A physical (PHY) layer of a user equipment (UE) may report different subsets of available resources to a medium access control (MAC) layer. Each subset may be associated with a different priority and the MAC layer may use the subsets to select a resource for the sidelink transmission. The MAC layer may additionally or alternatively maintain a list of UE identifiers (IDs) and may provide the list of the UE IDs to the PHY layer for resource identification. The PHY layer may use the list to implement different reference signal parameters for UEs associated with the list of UE IDs than for other UEs. The PHY layer may report the set of available resources to the MAC layer, based on the list of UE IDs.

公开(公告)号：US11297641B2

公开(公告)日：2022-04-05

申请号：US16711057

申请日：2019-12-11

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Junyi Li ,  Hua Wang

IPC: H04W72/12 ,  H04W74/08 ,  H04L5/00 ,  H04W16/14 ,  H04W72/04

Abstract: Wireless communications systems and methods related to scheduling communications in a network are provided. A wireless communication device communicates a semi-persistent schedule (SPS) for communicating with a group of wireless communication devices, the SPS including a plurality of resource allocations spaced apart in time. The first wireless communication device identifies a first resource allocation for at least a subset of the group of wireless communication devices based on a missed resource allocation of the plurality of resource allocations associated with a failed listen-before-talk (LBT). Additionally, the wireless communication device communicates with at least the subset of the group of wireless communication devices, communication signals based on the first resource allocation.

公开(公告)号：US20220095327A1

公开(公告)日：2022-03-24

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

IPC: H04W72/12 ,  H04W28/26 ,  H04W24/08 ,  H04L1/00

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.

公开(公告)号：US11284329B2

公开(公告)日：2022-03-22

申请号：US16853086

申请日：2020-04-20

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Tingfang Ji ,  Chong Li ,  Shailesh Patil ,  Joseph Binamira Soriaga ,  Jing Jiang ,  Wei Zeng ,  Alexei Yurievitch Gorokhov ,  Junyi Li

IPC: H04W40/24 ,  H04W8/00 ,  H04W72/02 ,  H04W74/08 ,  H04W64/00 ,  H04W92/18

Abstract: Device detection in networks with mixed mobility devices is discussed. Devices in the network first determine a discovery mode from a plurality of discovery modes, wherein the determining is based on a mobility state of the wireless device. The device identifies a set of resources associated with the determined discovery mode, wherein each of the plurality of discovery modes is provisioned with separate resources. A discovery signal is transmitted using the identified set of resources according to the discovery mode. Thus, devices with higher mobility will generally send discovery signals more often than devices that are static or semi-static.

公开(公告)号：US20220070906A1

公开(公告)日：2022-03-03

申请号：US17380912

申请日：2021-07-20

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Piyush Gupta ,  Jing Sun ,  Lik Hang Silas Fong

IPC: H04W72/12 ,  H04L1/18 ,  H04L1/16

Abstract: Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support the transmission of a scheduling request via a physical sidelink feedback channel (PSFCH). In some cases, a user equipment (UE) may determine a configuration of a set of PSFCH resource blocks (RBs). The UE may receive a first bit map that may indicate a subset of the set of PSFCH RBs allocated for transmitting a scheduling request on the PSFCH, and the UE may receive a second bit map that may indicate a second subset of the PSFCH RBs allocated for hybrid automatic repeat request (HARQ) messages. The UE may transmit a scheduling request via one or more RBs of the first subset of the PSFCH RBs. In some cases, the UE may generate a waveform for transmitting the scheduling request message, and the waveform may be based on the number of RBs selected.

公开(公告)号：US11212828B2

公开(公告)日：2021-12-28

申请号：US16360950

申请日：2019-03-21

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Junyi Li ,  Chong Li

IPC: H04W72/14 ,  H04B7/06 ,  H04W72/04 ,  H04W72/12 ,  H04W88/06 ,  H04B7/0413

Abstract: Various aspects of the present disclosure generally relate to wireless communication. A traffic window may be scheduled for a user equipment (UE) base on semi-persistent scheduling (SPS). In various situations, all or a portion of a first communication to be transmitted or received can be transmitted or received during an SPS grant in the traffic window. If useful, additionally, a remainder of the first communication not transmitted or received during the SPS grant may be transmitted in an on-demand grant appended to the SPS grant. The on-demand grant can be in a same subframe as the SPS grant. When the BS appends the on-demand grant to the SPS grant, the BS may transmit, and the UE may receive, an indicator indicating that the on-demand grant has been appended to the SPS grant. Numerous other aspects are provided.

公开(公告)号：US20210400689A1

公开(公告)日：2021-12-23

申请号：US17350314

申请日：2021-06-17

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Piyush Gupta ,  Jing Sun ,  Lik Hang Silas Fong

IPC: H04W72/12 ,  H04W72/02 ,  H04W72/04 ,  H04W52/52

Abstract: Methods, systems, and devices for wireless communications are described for improving sidelink communication reliability. In some examples, a user equipment (UE) may map allocated sidelink resources from a logical domain to a physical domain, where the mapped resources may include greater frequency diversity in the physical domain. A frequency range of a sidelink control channel or of a sidelink data channel may be greater in the physical domain than in the logical domain after the mapping. In some examples, sidelink communications may be associated with an aggregation factor that represents a number of repetitions of a sidelink communication. In this example, a UE may repeat a sidelink communication within a contention-based resource pool a number of times before receiving feedback in order to increase communication reliability. A first UE may communicate a sidelink communication with a second UE using a resource mapping or repetitions of the sidelink communication.