公开(公告)号：US11937231B2

公开(公告)日：2024-03-19

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: H04W72/1263 ,  H04W52/52 ,  H04W72/02 ,  H04W72/0453 ,  H04W72/20 ,  H04W92/18

CPC classification number: H04W72/1263 ,  H04W52/52 ,  H04W72/02 ,  H04W72/0453 ,  H04W72/20 ,  H04W92/18

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.

公开(公告)号：US11889431B2

公开(公告)日：2024-01-30

申请号：US17643082

申请日：2021-12-07

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Xiaoxia Zhang ,  Piyush Gupta ,  Sony Akkarakaran

IPC: H04W52/24 ,  H04W52/10 ,  H04L5/00 ,  H04W72/04 ,  H04W52/26 ,  H04W72/20 ,  H04W72/044

CPC classification number: H04W52/242 ,  H04L5/0037 ,  H04W52/10 ,  H04W52/262 ,  H04W72/044 ,  H04W72/20

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration for sidelink feedback power control. The UE may transmit a sidelink feedback transmission, in accordance with the configuration, using a transmit power that is based at least in part on at least one of: a quantity of resource blocks (RBs) associated with the sidelink feedback transmission, a quantity of symbols associated with the sidelink feedback transmission, a sidelink pathloss value, or a size of the sidelink feedback transmission. Numerous other aspects are provided.

公开(公告)号：US11882546B2

公开(公告)日：2024-01-23

申请号：US17221584

申请日：2021-04-02

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Piyush Gupta ,  Jing Sun

IPC: H04W72/04 ,  H04W4/06 ,  H04L12/18

CPC classification number: H04W72/04 ,  H04W4/06 ,  H04L12/189

Abstract: Methods, systems, and devices for wireless communications are described. Generally, a user equipment (UE) may transmit feedback signaling for received sidelink messages to both the base station and the transmitting UE. The receiving UE may multicast a feedback message to both the base station and the transmitting UE on a physical uplink control channel (PUCCH) or on a physical sidelink feedback channel (PSFCH). The base station may configure the receiving UE with resources, the transmitting UE may allocate resources to the receiving UE, or the base station may actively monitor for the feedback message. In some examples, the receiving UE may operate in a dual connectivity mode, and may transmit the feedback message to both the base station and the transmitting UE on both the PUCCH and the PSFCH.

公开(公告)号：US11871418B2

公开(公告)日：2024-01-09

申请号：US17149618

申请日：2021-01-14

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Piyush Gupta ,  Junyi Li ,  Jing Sun ,  Xiaoxia Zhang ,  Peter Gaal ,  Tao Luo

IPC: H04W72/21 ,  H04W28/06 ,  H04W72/044 ,  H04W92/18

CPC classification number: H04W72/21 ,  H04W28/06 ,  H04W72/044 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications are described. A first UE may receive, from a second UE such as a PLC, sidelink control information scheduling a first transmission to be transmitted by the first UE to the second UE on a first set of resources in a dedicated resource pool for sidelink control signaling. The first UE may receive an indication that a second transmission is scheduled to be transmitted by the first UE on a second set of resources which at least partially overlaps in time with the first set of resources. The first UE may transmit at least one of the first transmission or the second transmission in accordance with a conflict resolution rule based on the second set of resources at least partially overlapping with the first set of resources.

公开(公告)号：US11856534B2

公开(公告)日：2023-12-26

申请号：US17304821

申请日：2021-06-25

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Xiaoxia Zhang ,  Jing Sun ,  Junyi Li ,  Piyush Gupta ,  Sony Akkarakaran ,  Peter Gaal ,  Jung Ho Ryu ,  Tao Luo

IPC: H04W52/52 ,  H04L27/26 ,  H04J13/00 ,  H04W92/18

CPC classification number: H04W52/52 ,  H04J13/0062 ,  H04L27/2607 ,  H04L27/2615 ,  H04W92/18

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a receiving user equipment (UE) may receive, from a transmitting UE, a sidelink reference signal in a first symbol of a slot. The receiving UE may perform a joint channel estimation and an automatic gain control (AGC) based at least in part on the sidelink reference signal received in the first symbol of the slot. Numerous other aspects are described.

公开(公告)号：US20230378807A1

公开(公告)日：2023-11-23

申请号：US17746797

申请日：2022-05-17

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Piyush Gupta ,  Junyi Li

IPC: H02J50/00 ,  H04W4/80 ,  H04W24/08 ,  H04W74/08 ,  H04W72/12

CPC classification number: H02J50/001 ,  H04W4/80 ,  H04W24/08 ,  H04W74/0833 ,  H04W72/1263

Abstract: Methods, systems, and devices for wireless communications are described. Described techniques provide for signaling for configuring energy scheduling requests or communications scheduling requests from a semi-passive user equipment (UE) to the network. A semi-passive UE may transmit a message indicating a UE class type to a serving network entity (e.g., indicating that the UE is a semi-passive UE). The network entity may transmit control signaling indicating a configuration for the UE to transmit energy scheduling requests or communications scheduling requests. The UE may transmit an energy scheduling request or communications scheduling request in accordance with the configuration. In response to an energy scheduling request, the network entity may indicate a resource for an energy transfer signal, and the UE may monitor for and receive an energy transfer signal in the indicated resource. In response to a communications scheduling request, the network entity may indicate a resource for a data transmission.

公开(公告)号：US20230319883A1

公开(公告)日：2023-10-05

申请号：US17713100

申请日：2022-04-04

Applicant: QUALCOMM Incorporated

Inventor： Sherif Elazzouni ,  Ozcan Ozturk ,  Junyi Li ,  Xiaoxia Zhang ,  Piyush Gupta

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/12 ,  H04W76/14

CPC classification number: H04W74/0816 ,  H04W74/002 ,  H04W74/0866 ,  H04W72/1263 ,  H04W76/14

Abstract: Methods, systems, and devices for wireless communication are described. A first user equipment (UE) may communicate one or more messages associated with establishing a sidelink communication connection with a set of UEs, including a second UE. The first UE may transmit a message indicating that the first UE has a data transmission to send. The second UE may receive the message and transmit an indication that a first set of resources is allocated to the first UE for the data transmission. In some examples, the second UE may broadcast the indication that the first set of resources is allocated to the first UE. The first UE may transmit the data transmission over the resources based on receiving the indication that the first set of resources is allocated to the first UE. In some examples, the first UE may perform a listen before talk procedure prior to transmitting the data transmission.

公开(公告)号：US11770343B2

公开(公告)日：2023-09-26

申请号：US16844823

申请日：2020-04-09

Applicant: QUALCOMM Incorporated

Inventor： Hua Wang ,  Piyush Gupta ,  Junyi Li ,  Lik Hang Silas Fong

IPC: H04L47/32 ,  H04L47/2425 ,  H04W72/04

CPC classification number: H04L47/32 ,  H04L47/2433 ,  H04W72/04

Abstract: Apparatus, methods, and computer-readable media for facilitating usage of memory of helping UEs during sidelink retransmission are disclosed herein. An example method for wireless communication at a first user equipment (UE) includes receiving, from a wireless device, a first packet and a second packet for sidelink retransmission to at least one second UE, the second packet being received after the first packet. The example method also includes dropping the first packet or the second packet prior to retransmission based on at least one of a packet priority or an indication from the wireless device.

公开(公告)号：US11757592B2

公开(公告)日：2023-09-12

申请号：US17468172

申请日：2021-09-07

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Sony Akkarakaran ,  Tao Luo ,  Junyi Li ,  Peter Gaal ,  Xiaojie Wang ,  Wooseok Nam ,  Juan Montojo ,  Xiaoxia Zhang ,  Jing Sun ,  Mahmoud Taherzadeh Boroujeni ,  Piyush Gupta ,  Hua Wang ,  Lik Hang Silas Fong ,  Tianyang Bai ,  Yan Zhou

IPC: H04L5/00

CPC classification number: H04L5/0051 ,  H04L5/0096

Abstract: Aspects relate to techniques for signaling the capability of a wireless communication device (e.g., a UE) to support demodulation reference signal (DMRS) bundling for channel estimation across two or more slots in the sidelink or uplink. In some examples, a transmitting UE may transmit a DMRS bundling indication to a receiving device (e.g., a receiving UE for sidelink DMRS bundling or a base station for uplink DMRS bundling). The DMRS bundling indication may indicate a capability of the transmitting UE to support DMRS bundling. The transmitting UE may then transmit a respective set of DMRSs within each of two or more slots during a DMRS bundling window to the receiving device based on the transmitting wireless communication device and the receiving device supporting DMRS bundling.

公开(公告)号：US11737142B2

公开(公告)日：2023-08-22

申请号：US17443241

申请日：2021-07-22

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Xiaoxia Zhang ,  Jing Sun ,  Chih-Hao Liu ,  Shuanshuan Wu ,  Peter Gaal ,  Ozcan Ozturk ,  Piyush Gupta

IPC: H04W74/08 ,  H04L1/1812 ,  H04W72/02 ,  H04W74/00 ,  H04W80/02

CPC classification number: H04W74/0816 ,  H04L1/1819 ,  H04W72/02 ,  H04W74/002 ,  H04W80/02

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may select, for a sidelink transmission over an unlicensed band and associated with a medium access control (MAC) protocol data unit (PDU), one or more candidate resources of a set of candidate resources that are within an adaptive effective contention window (ECW). The UE may adjust at least one parameter of the adaptive ECW to determine an adjusted at least one parameter based at least in part on a channel access output associated with the one or more candidate resources. The UE may transmit the MAC PDU using the one or more candidate resources or an additional one or more candidate resources, wherein the additional one or more candidate resources are selected based at least in part on the adjusted at least one parameter. Numerous other aspects are provided.