公开(公告)号：US20210160804A1

公开(公告)日：2021-05-27

申请号：US17103478

申请日：2020-11-24

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Ling Ding ,  Tao Luo

IPC: H04W56/00 ,  H04W72/04

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：US20210159963A1

公开(公告)日：2021-05-27

申请号：US17103232

申请日：2020-11-24

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Ling Ding ,  Tao Luo

IPC: H04B7/06 ,  H04W76/14 ,  H04B7/08 ,  H04W72/04 ,  H04L1/16

Abstract: Methods, systems, and devices for wireless communications are described. A served user equipment (UE) may receive a first configuration signal configuring the served UE with first transmission beam resources and second transmission beam resources for the served UE to use for beam management over a sidelink channel. The served UE may identify, based at least in part on the first configuration signal, a pattern for performing beam management using the first transmission beam resources and the second transmission beam resources. The served UE may perform the beam management over the sidelink channel in accordance with the pattern using the first transmission beam resources and the second transmission beam resources.

公开(公告)号：US11019590B2

公开(公告)日：2021-05-25

申请号：US16284045

申请日：2019-02-25

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Peter Gaal ,  Muhammad Nazmul Islam ,  Amir Aminzadeh Gohari ,  Peter Pui Lok Ang ,  Tao Luo

IPC: H04W56/00 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04

Abstract: Certain aspects of the present disclosure relate to communication systems, and more particularly, to interpreting a timing advance (TA) command for members of a timing advance group (TAG), such as different uplink component carriers and/or different bandwidth parts, having different numerologies, such as different subcarrier spacing (SCS). A method that may be performed by a user equipment (UE) includes receiving, from a base station (BS), a TA command. The UE interprets the TA command differently for different members of a same TAG, associated with different numerologies. The UE applies a timing adjustment when transmitting an uplink transmission to the BS based, at least in part, on the interpretation.

公开(公告)号：US20210127404A1

公开(公告)日：2021-04-29

申请号：US17072022

申请日：2020-10-15

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Sony Akkarakaran ,  Kapil Gulati ,  Juan Montojo ,  Junyi Li ,  Mahmoud Taherzadeh Boroujeni ,  Tao Luo ,  Hong Cheng

IPC: H04W72/12 ,  H04W72/04 ,  H04W72/14 ,  H04W16/28 ,  H04W76/27 ,  H04W80/02

Abstract: Methods, systems, and devices for wireless communications are described in which a user equipment (UE) of a group of UEs may communicate with other members of the group to provide data or other information via sidelinks. The UE may transmit a groupcast sidelink request to the base station. After receiving the sidelink request, the base station may send a sidelink grant (e.g., transmit or receive grant) in downlink control information (DCI) to the UEs in the sidelink groupcast communications group. The sidelink grant may include information for each hop such as which UEs are going to transmit or receive, the reception or transmission beams of the UEs, time and frequency resources, or the data to forward or relay. In some examples, a UE may relay information to other UEs in the sidelink groupcast communications group.

公开(公告)号：US20210127403A1

公开(公告)日：2021-04-29

申请号：US17071877

申请日：2020-10-15

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Sony Akkarakaran ,  Tao Luo ,  Hong Cheng ,  Juan Montojo ,  Kapil Gulati ,  Mahmoud Taherzadeh Boroujeni ,  Junyi Li

IPC: H04W72/12 ,  H04W72/14 ,  H04W72/04 ,  H04W76/27 ,  H04W80/02 ,  H04W28/02 ,  H04L1/00

Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may transmit, to a base station, a sidelink scheduling request for groupcast sidelink communications with a set of one or more UEs. The base station may determine one or more UEs of the set of UEs and time-frequency resources for groupcast sidelink communication between the first UE and the one or more UEs. The first UE may receive, from the base station, a groupcast sidelink grant that indicates time-frequency resources for groupcast sidelink communications between the first UE and one or more UEs. The first UE may transmit, via the time-frequency resources indicated by the groupcast sidelink grant, a groupcast sidelink message to the one or more UEs. The one or more UEs may also receive the sidelink grant, and may monitor the time-frequency resources for a groupcast sidelink communication from the first UE.

公开(公告)号：US10992350B2

公开(公告)日：2021-04-27

申请号：US16733500

申请日：2020-01-03

Applicant: QUALCOMM INCORPORATED

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Sony Akkarakaran ,  Rahul Malik ,  Kaushik Chakraborty

IPC: H04J11/00 ,  H04B7/0408 ,  H04B7/0413 ,  H04W72/04 ,  H04B7/08 ,  H04B7/06 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communication are described. A base station may configure a first sub-band and a second sub-band of a system bandwidth for communication with a user equipment (UE). The base station may determine a spatial quasi co-location (QCL) relationship between the first sub-band and the second sub-band and may transmit signaling to the UE that indicates the determined spatial QCL relationship. Upon receiving the signaling, the UE may derive, based on the indicated spatial QCL relationship, spatial parameters (e.g., beam width, pointing angle, etc.) for communication with the base station via the second sub-band. The spatial parameters may be derived based on spatial parameters used for reception of a downlink transmission from the base station via the first sub-band. Subsequently, the UE may communicate with the base station via the second sub-band using the derived spatial parameters.

公开(公告)号：US20210105124A1

公开(公告)日：2021-04-08

申请号：US17124014

申请日：2020-12-16

Applicant: QUALCOMM Incorporated

Inventor： Hung Ly ,  Tingfang Ji ,  Sony Akkarakaran ,  Haitong Sun ,  Peter Gaal

IPC: H04L5/00 ,  H03M13/09 ,  H04W72/04 ,  H04L1/00

Abstract: Methods, systems, and devices for wireless communication are described. A device—such as a base station or user equipment (UE)—may transmit a demodulation reference signal (DMRS) including signaling information in addition to channel estimation information. To improve reception of the DMRS signaling information, the transmitting device may employ data protection techniques to the signaling information and modify a data payload transmitted in the physical data channel associated with the DMRS. In one aspect, the transmitting device may modify cyclic redundancy check (CRC) bits in the payload to include verification for the signaling information. In another aspect, the transmitting device may determine a scrambling code based on the signaling information, and may scramble the payload based on the scrambling code.

公开(公告)号：US10972987B2

公开(公告)日：2021-04-06

申请号：US16139990

申请日：2018-09-24

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Juan Montojo ,  Xiao Feng Wang ,  Shengbo Chen ,  Sumeeth Nagaraja ,  Makesh Pravin John Wilson

IPC: H04W52/36 ,  H04W24/10 ,  H04L5/00 ,  H04W52/24 ,  H04W52/42 ,  H04B7/0426 ,  H04W72/12 ,  H04B7/06 ,  H04B7/0404 ,  H04W72/04 ,  H04W72/02

Abstract: A user equipment (UE) may transmit a power headroom report in response to changing beamforming parameters. The UE may autonomously change beamforming parameters from a preconfigured set of beams or receive a command to change beamforming parameters for transmissions on a new beam. The UE may determine a power headroom applicable to a transmission from the UE on the new beam. The UE may transmit, in response to the command, a power headroom report based on the power headroom using resources configured for the power headroom report. For example, the power headroom report may be multiplexed with an uplink transmission from the UE using the new beam. In an aspect, the UE may select a scheduled transmission during a time period after the command is implemented as the uplink transmission. For example, the power headroom report may be transmitted as a physical layer transmission or as a MAC-CE transmission.

公开(公告)号：US20210083830A1

公开(公告)日：2021-03-18

申请号：US17001653

申请日：2020-08-24

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Xiaoxia Zhang ,  Sony Akkarakaran ,  Jing Sun ,  Taesang Yoo

IPC: H04L5/00 ,  H04W74/00

Abstract: Methods, systems, and devices for transmitting a positioning reference signal over a channel within a window including a set of positioning reference signal transmission opportunities. A device may identify the window and perform a channel access procedure to access the channel during the window. Based on performing the channel access procedure, the device may obtain access to the channel and determine that a portion of the positioning reference signal transmission opportunities are remaining within the window. The device may transmit a positioning reference signal during one or more of the remaining positioning reference signal transmission opportunities. In some cases, the device may refrain from transmitting a positioning reference signal during a portion of a positioning reference signal transmission opportunity even if the device gains access to the channel during that portion of the positioning reference signal transmission opportunity.

公开(公告)号：US10951376B2

公开(公告)日：2021-03-16

申请号：US16550590

申请日：2019-08-26

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Ashwin Sampath ,  Sumeeth Nagaraja ,  Sundar Subramanian ,  Juergen Cezanne ,  Sony Akkarakaran

IPC: H04L5/00 ,  H04B7/0408 ,  H04B7/06 ,  H04L1/00 ,  H04W16/28 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for signaling information regarding beams used for data and control transmissions to a receiving entity.