公开(公告)号：US12015995B2

公开(公告)日：2024-06-18

申请号：US17137083

申请日：2020-12-29

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Ling Ding ,  Junyi Li ,  Jung Ho Ryu ,  Jelena Damnjanovic ,  Mahmoud Taherzadeh Boroujeni

IPC: H04W72/02 ,  H04W56/00 ,  H04W72/044 ,  H04W72/51 ,  H04W72/542

CPC classification number: H04W72/02 ,  H04W56/001 ,  H04W72/046 ,  H04W72/51 ,  H04W72/542

Abstract: Certain aspects of the present disclosure provide techniques for selecting and indicating a quasi colocation (QCL) source signal for sidelink (SL) communications. For example, a scheduling node may select from multiple candidates a signal for a first user equipment (UE) to use as a spatial QCL source for a receive (RX) or transmit (TX) beam to use for communicating with a second UE on a SL interface. The scheduling node may then signal the first UE an indication of the selection of the signal.

公开(公告)号：US11870721B2

公开(公告)日：2024-01-09

申请号：US17318985

申请日：2021-05-12

Applicant: QUALCOMM Incorporated

Inventor： Tianyang Bai ,  Wooseok Nam ,  Sungwoo Park ,  Kiran Venugopal ,  Tao Luo ,  Junyi Li ,  Jung Ho Ryu ,  Qian Zhang ,  Ling Ding

IPC: H04L5/00 ,  H04W72/23 ,  H04W72/51

CPC classification number: H04L5/0048 ,  H04W72/23 ,  H04W72/51

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit, to a base station, a UE capability to receive a first portion of a tracking reference signal (TRS) and a second portion of the TRS, the first portion and the second portion associated with a TRS pattern. The UE may receive, from the base station, an indication of the TRS pattern, where the TRS pattern includes the first portion of the TRS pattern and the second portion of the TRS pattern. The UE may receive one or more TRSs according to the first portion of the TRS pattern and the second portion of the TRS pattern.

公开(公告)号：US11770168B2

公开(公告)日：2023-09-26

申请号：US17162784

申请日：2021-01-29

Applicant: QUALCOMM Incorporated

Inventor： Ling Ding ,  Junyi Li ,  Sony Akkarakaran ,  Jung Ho Ryu ,  Tao Luo

IPC: H04B7/06 ,  H04B7/0408 ,  H04W16/28 ,  H04W76/28

CPC classification number: H04B7/0617 ,  H04B7/0408 ,  H04W16/28 ,  H04W76/28

Abstract: Certain aspects provide a method for wireless communication by a first user-equipment (UE). The method generally includes applying a discontinuous reception (DRX) configuration for the first UE, monitoring for first signaling from a second UE indicating that the second UE has data to send to the first UE, the first signaling being transmitted using a plurality of transmit beams during a DRX cycle of the DRX configuration, selecting one or more transmit beams of the plurality of transmit beams based on the monitoring of the first signaling, and communicating in accordance with the selection.

公开(公告)号：US11751249B2

公开(公告)日：2023-09-05

申请号：US16892498

申请日：2020-06-04

Applicant: QUALCOMM Incorporated

Inventor： Ling Ding ,  Raghu Narayan Challa ,  Junyi Li

IPC: H04W74/08 ,  H04L1/08 ,  H04L5/00 ,  H04L41/06 ,  H04W24/08

CPC classification number: H04W74/0833 ,  H04L1/08 ,  H04L5/001 ,  H04L41/06 ,  H04W24/08

Abstract: Methods, systems, and devices for wireless communication are described. For a user equipment with a number of M greater than or equal to two antennas, a signal is transmitted from at least a first antenna and a second antenna at a first time with an initial relative phase state including a first relative phase rotation between the signals transmitted by the first and second antennas. In response to a determination that a response signal was not received at the user equipment, the signal is retransmitted from at least the first antenna and the second antenna with a subsequent relative phase state among the transmitting antennas, including a second different relative phase rotation, at a second time. The second time may be the next subsequent retransmission of the signal or may be a retransmission following one or more retransmissions using the first relative phase rotation.

公开(公告)号：US11737037B2

公开(公告)日：2023-08-22

申请号：US17103478

申请日：2020-11-24

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Ling Ding ,  Tao Luo

IPC: H04W56/00 ,  H04W72/21 ,  H04W72/51

CPC classification number: H04W56/0035 ,  H04W72/21 ,  H04W72/51

Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may transmit a capability message indicating a parameter configuration for each phase error process of a set of phase error processes of the first UE. The first UE may transmit, to a second UE, a phase error process indicator to indicate that the first UE is using a first phase error process of the set of phase error processes to generate a sidelink transmission in accordance with the parameter configuration for the first phase error process. The second UE may monitor, via a sidelink channel, for the sidelink transmission based on frequency tracking, phase tracking, time tracking, or any combination thereof being performed in accordance with the parameter configuration for the first phase error process. The first UE may transmit, via the sidelink channel, the sidelink transmission to the second UE.

公开(公告)号：US11558878B2

公开(公告)日：2023-01-17

申请号：US17153760

申请日：2021-01-20

Applicant: QUALCOMM Incorporated

Inventor： Jelena Damnjanovic ,  Tao Luo ,  Sony Akkarakaran ,  Juan Montojo ,  Junyi Li ,  Hong Cheng ,  Sudhir Kumar Baghel ,  Yan Zhou ,  Mahmoud Taherzadeh Boroujeni ,  Jung Ho Ryu ,  Jingchao Bao ,  Wooseok Nam ,  Ling Ding

IPC: H04W72/04 ,  H04W72/10 ,  H04W72/14

Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may be scheduled for communicating a first message over a first communication link with a base station and a second message over second communication link with a second UE. The first UE may select to communicate using the first communication link or the second communication link based on one or more prioritization rules that may involve the priority of the first message and the second message. The first UE may identify a mapping between the priority of the first message and the priority of the second message that may enable a comparison of the priorities of the first message and the second message. The first UE may select to communicate using the communication link of the message associated with the higher priority.

公开(公告)号：US11509379B2

公开(公告)日：2022-11-22

申请号：US17110971

申请日：2020-12-03

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Ling Ding ,  Tao Luo

IPC: H04B7/06 ,  H04W8/24 ,  H04L25/02 ,  H04W76/27 ,  H04W80/02 ,  H04W72/04 ,  H04L5/00 ,  H04W92/18

Abstract: Techniques for dynamic sidelink waveform selection are disclosed. In an example, a user equipment (UE) may determine capabilities of the UE and at least one other UE. The UE may also dynamically select a waveform for sidelink beam training based on the capabilities. The UE may also communicate with the at least one other UE based on the selected waveform.

公开(公告)号：US11483835B2

公开(公告)日：2022-10-25

申请号：US17248162

申请日：2021-01-12

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  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：US20220022068A1

公开(公告)日：2022-01-20

申请号：US17349644

申请日：2021-06-16

Applicant: QUALCOMM Incorporated

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

IPC: H04W24/08 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. For example, the described techniques provide for configuring sidelink beam failure detection reference signals for determining beam failures on a sidelink between a first sidelink user equipment (UE) and a second sidelink UE. The first UE may determine a first set of sidelink beam failure detection reference signals to transmit to the second UE and a second set of sidelink beam failure detection reference signals to receive from the second UE. The first UE may transmit the first set to the second UE using a set of sidelink transmit beams. The first UE may further monitor for the determined second set using a set of sidelink receive beams. Based on the first and second set of sidelink beam failure detection reference signals, the first and second UE may communicate over the sidelink.

公开(公告)号：US20210289476A1

公开(公告)日：2021-09-16

申请号：US17194015

申请日：2021-03-05

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/02 ,  H04W76/14 ,  H04W72/04 ,  H04B7/06 ,  H04W24/10 ,  H04W16/28

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for a first user equipment (UE) establishing a sidelink connection with a second UE. The first UE may identify a frame structure for the first UE to communicate with a base station. The frame structure may include one or more downlink slots and one or more uplink slots. The base station may indicate a set of resources for the sidelink connection with the second UE. The set of resources may include at least one downlink slot of the one or more downlink slots. In accordance with the indication, the first UE may communicate with the second UE on the sidelink connection and using at least one beam and the indicated set of resources. The communication with the second UE may utilize at least the resources in the at least one downlink slot.