公开(公告)号：US20210160851A1

公开(公告)日：2021-05-27

申请号：US17103630

申请日：2020-11-24

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Ling Ding ,  Tao Luo

IPC: H04W72/04 ,  H04L5/00

Abstract: The described techniques relate to improved methods, systems, devices, and apparatuses that support configurations for sidelink beam management. In some cases, a base station may determine sidelink beams for beam sweeping and instruct a user equipment (UE) which sidelink beams to use. The base station may determine the sidelink beams for beam sweeping based on a report sent from the UE. In other cases, the UE may determine transmission sidelink beams for beam sweeping based on the UE capabilities beam input from the receiving UE, or the base station determining which beams to use and allocating resources for the beam sweeping. Additionally or alternatively, the base station may determine a portion of the sidelink beams for beam sweeping and the UE may determine a portion of the sidelink beams to use for beam sweeping in addition to the beams indicated by the base station.

公开(公告)号：US20210160850A1

公开(公告)日：2021-05-27

申请号：US17103108

申请日：2020-11-24

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Ling Ding ,  Tao Luo

IPC: H04W72/04 ,  H04B7/0408

Abstract: Methods, systems, and devices for wireless communications are described. A device may be configured to support multi-beam, or multi-panel operations, or both which may allow multiple sidelink transmissions to occur simultaneously. In some cases, flexible beam-management for the beamformed sidelink communications is implemented to manage the beams. A transmitting UE may indicate transmission beam information to the base station that the base station may use to schedule sidelink transmissions as part of a beam management procedure. The beam management procedure may allow a transmitting UE to update transmission beam information based on the mobility of the sidelink UEs and other environmental factors. In some cases, beam management includes a beam training procedure that may be implemented to refine the sidelink beams, where support for multi-panel and multi-beam operation may allow for multiple beams to be trained simultaneously.

公开(公告)号：US12160856B2

公开(公告)日：2024-12-03

申请号：US18499335

申请日：2023-11-01

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Ling Ding ,  Sony Akkarakaran ,  Kiran Venugopal ,  Tianyang Bai ,  Junyi Li ,  Tao Luo

IPC: H04W72/044 ,  H04B7/0408

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first node may transmit, to a second node on a beamformed link from the first node to the second node, a first signal, wherein the first node and the second node are associated with common timing; determine whether a second signal, based at least in part on the first signal, is received on a beamformed link from the second node to the first node; and transmit a third signal based at least in part on receiving the second signal or perform a sidelink beam failure recovery procedure based at least in part on determining that the second signal is not received. Numerous other aspects are provided.

公开(公告)号：US11924902B2

公开(公告)日：2024-03-05

申请号：US17336118

申请日：2021-06-01

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Sony Akkarakaran ,  Tao Luo ,  Jelena Damnjanovic ,  Junyi Li ,  Ling Ding ,  Juan Montojo ,  Xiaoxia Zhang

IPC: H04W76/18 ,  H04L5/00 ,  H04W24/04

CPC classification number: H04W76/18 ,  H04L5/0048 ,  H04W24/04

Abstract: A method of wireless communication, by a first sidelink user equipment (UE), includes periodically receiving a set of sidelink beam failure detection reference signals (RSs) from a second sidelink UE. The method includes incrementing a beam failure detection (BFD) counter in response to one or more reference signals of the set of sidelink beam failure detection RSs having a received signal strength below a threshold. The first sidelink UE starts a beam failure detection timer in response to the reference signal(s) of the set of sidelink beam failure detection reference signals having the received signal strength below the threshold. Another method by a sidelink UE may periodically transmit a set of sidelink BFD RSs to another sidelink UE. The set of sidelink BFD RSs comprise one or more sidelink receive RSs. The sidelink UE configures the other sidelink UE with the sidelink receive BFD RSs.

公开(公告)号：US11856638B2

公开(公告)日：2023-12-26

申请号：US17173013

申请日：2021-02-10

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Ling Ding ,  Junyi Li ,  Tao Luo ,  Jung Ho Ryu ,  Jelena Damnjanovic ,  Kapil Gulati ,  Hong Cheng

IPC: H04W76/28 ,  H04W72/23 ,  H04W92/18

CPC classification number: H04W76/28 ,  H04W72/23 ,  H04W92/18

Abstract: Example implementations include a method, apparatus and computer-readable medium of wireless communication over a sidelink between a first user equipment (UE) and a second UE. The first UE may receive, from a base station, a first sidelink grant for a transmission between the first UE and the second UE. The first UE may communicate the transmission according to the sidelink grant. The first UE may monitor a configured duration of a sidelink round trip time timer from the transmission. The first UE may monitor a configured duration of a sidelink retransmission timer from an end of the sidelink round trip time timer. The first UE may allow start of a discontinuous reception (DRX) mode after the duration of the sidelink retransmission time if a second grant is not received during the sidelink retransmission timer.

公开(公告)号：US11778588B2

公开(公告)日：2023-10-03

申请号：US17095627

申请日：2020-11-11

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Sony Akkarakaran ,  Junyi Li ,  Tao Luo ,  Jelena Damnjanovic ,  Kapil Gulati ,  Juan Montojo ,  Ling Ding ,  Mahmoud Taherzadeh Boroujeni ,  Hong Cheng ,  Jingchao Bao

IPC: H04W72/02 ,  H04W72/044 ,  H04W24/08 ,  H04W72/0446 ,  H04W28/26 ,  H04W92/18

CPC classification number: H04W72/02 ,  H04W24/08 ,  H04W28/26 ,  H04W72/046 ,  H04W72/0446 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for determining shared resources associated with one or more user equipments (UEs) for sidelink communications, including control resources and data resources. A first UE may transmit a sidelink request to reserve a subset of data resources to a second UE, and may monitor for one or more sidelink responses indicating a positive sidelink response to the sidelink request, a negative sidelink response to the sidelink request, or both. The second UE may transmit a positive sidelink response if it is available for a data transmission. A third UE may transmit a negative sidelink response if it objects to the data transmission. The first UE may determine, based on monitoring for the one or more sidelink responses, whether to transmit a sidelink confirmation indicating a reservation of the subset of the data resources to the second UE.

公开(公告)号：US11770835B2

公开(公告)日：2023-09-26

申请号：US17185316

申请日：2021-02-25

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Sony Akkarakaran ,  Tao Luo ,  Junyi Li ,  Ling Ding ,  Jelena Damnjanovic ,  Juan Montojo ,  Kapil Gulati

IPC: H04W72/23 ,  H04W72/56

CPC classification number: H04W72/23 ,  H04W72/56

Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit a configured grant that indicates time-frequency resources for a user equipment (UE) to use to transmit sidelink or uplink messages in a wireless communications system. To reduce the amount of low priority traffic that may interfere with higher priority traffic, the base station may configure a threshold probability to allow high priority sidelink transmissions and to cancel low priority transmissions. The base station may transmit a cancellation indication that includes a priority indication instructing the UE to cancel transmissions having a priority less than a priority threshold during the allocated time-frequency resources. Based on transmitting the cancellation indication, the base station may cancel transmissions that have low priority, and the UE may determine whether to transmit (or to refrain from transmitting) one or more messages based on the priority of the message.

公开(公告)号：US11765709B2

公开(公告)日：2023-09-19

申请号：US17171339

申请日：2021-02-09

Applicant: QUALCOMM Incorporated

Inventor： Tianyang Bai ,  Yan Zhou ,  Tao Luo ,  Kiran Venugopal ,  Jung Ho Ryu ,  Qian Zhang ,  Ling Ding ,  Junyi Li

IPC: H04W72/044 ,  H04L5/00

CPC classification number: H04W72/046 ,  H04L5/0048

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for training a beam for multiple component carriers (CCs) for concurrent communications in a wireless communications system associated with limited user equipment (UE) capabilities. The UE receives, via a first receive beam, a first reference signal on a group of CCs over a first symbol. The UE also receives, via a second receive beam, a second reference signal on the group of CCs over a second symbol. The UE selects a receive beam for a subsequent communication based on determining a value of a parameter for each of the first and the second receive beam.

公开(公告)号：US11665655B2

公开(公告)日：2023-05-30

申请号：US17203105

申请日：2021-03-16

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Junyi Li ,  Sony Akkarakaran ,  Tao Luo ,  Tianyang Bai ,  Kiran Venugopal ,  Ling Ding ,  Qian Zhang

IPC: H04W56/00 ,  H04L5/00

CPC classification number: H04W56/001 ,  H04L5/0048

Abstract: Methods, systems, and devices for wireless communications are described. Sidelink UEs may be configured with a synchronization reference signal that may be used by the UEs to synchronize time and frequency resources. A first and second UE may perform a beam sweeping procedure to identify transmit and receive beams to use for communications between the UEs. A synchronization reference signal procedure may be initiated and the first UE may receive a sidelink synchronization reference signal from the second UE using the established receive beam. The UEs may align time and frequency resources for communications between the UEs and the UEs may communicate via the sidelink channel based on the time synchronization, frequency synchronization, or both, determined using the sidelink synchronization signal. In some cases, a sidelink UE may receive multiple synchronization reference signals from multiple sidelink UEs simultaneously, where each synchronization reference signal may include a UE identifier.

公开(公告)号：US11589325B2

公开(公告)日：2023-02-21

申请号：US17212781

申请日：2021-03-25

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Sony Akkarakaran ,  Kapil Gulati ,  Tao Luo ,  Junyi Li ,  Ling Ding ,  Tianyang Bai ,  Qian Zhang ,  Kiran Venugopal

IPC: H04W56/00 ,  H04W64/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may determine whether to transmit a sidelink timing synchronization signal to a second UE based at least in part on a sidelink zone in which the first UE is located and a sidelink zone in which the second UE is located. The first UE may selectively transmit the sidelink timing synchronization signal to the second UE based at least in part on determining whether to transmit the sidelink timing synchronization signal to the second UE. Numerous other aspects are provided.