Qualcomm Incorporated

Interdigital Patent Holdings, Inc.

Other

Holland & Hart Llp

Sudhir Kumar Baghel

Kapil Gulati

Shailesh Patil

Tien Viet Nguyen

Junyi Li

Zhibin Wu

Shuanshuan Wu

Hong Cheng

Arjun Bharadwaj

Gabi Sarkis

Libin Jiang

Anantharaman Balasubramanian

Michaela Catalina Vanderveen

Wanshi Chen

Saurabha Rangrao Tavildar

Navid Abedini

Dan Vassilovski

Chang-Sik Choi

Haris Zisimopoulos

Georgios Tsirtsis

Tao Luo

Seyedkianoush Hosseini

Naga Bhushan

Sony Akkarakaran

Peter S Gaal

Bilal Sadiq

Durga Prasad Malladi

Jung Ho Ryu

Jose Edson Vargas

Juan Montojo

Gavin Bernard Horn

Gokul Sridharan

Karthika Paladugu

Arthur Gubeskys

Sourjya Dutta

Alexandros Manolakos

Linhai He

Hui Guo

Richard Reid Hovey

Tingfang Ji

Wooseok Nam

Krishna Kiran Mukkavilli

Huilin Xu

Taesang Yoo

Peter Pui Lok Ang

Li-Hsiang Sun

Saad Ahmad

Guanzhou Wang

Gene Fong

Hua Chen

Wei Jennifer Yang

Hwan Joon Kwon

Gideon Shlomo Kutz

Jubin Jose

Urs Niesen

Marco Papaleo

Gaurav Gupta

Mohit Narula

Wei Guan

Xiaoxia Zhang

Yan Zhou

Yongbin Wei

Jelena Damnjanovic

Srinivas Yerramalli

Mahmoud Taherzadeh Boroujeni

Makesh Pravin John Wilson

Aamod Dinkar Khandekar

Chao Wei

John Edward Smee

Pascal M Adjakple

Ulises Olvera-Hernandez

Arvind Vardarajan Santhanam

Mahmoud Watfa

Hao Xu

Jingchao Bao

Chong Li

Gene Wesley Marsh

Amir Aminzadeh Gohari

Qiaoyu Li

Samian Kaur

Adrian Edward Escott

Lenaig Genevieve Chaponniere

Wei Yang

Ling Ding

Cheol Hee Park

Feng Lu

Subramanya P Rao

James Francis Geekie

Mouaffac Ambriss

Deviprasad Putchala

John Forrester

Farrukh Rashid

Mutaz Shukair

Junyl Li

Methods, systems, and devices for wireless communications (e.g., vehicle to everything systems) are described relating to an adaptive design of demodulation reference signals (DMRS) density based on user equipment (UE) velocity. A UE may send assistance information to a transmitting UE to help identify a DMRS pattern based on the relative speed between the two UEs. Also, the transmitter may determine the adaptive DMRS pattern based on its speed without information of the receiver's speed. The transmitter may indicate the adaptive DMRS pattern in control information to the receiver. A base station may receive assistance information, and the base station may determine the adaptive DMRS pattern to be used by the transmitting UE based on the received assistance information and then indicate the adaptive DMRS pattern to the transmitting UE. A UE may determine an adaptive DMRS pattern to use based on feedback from the receiving UE.

Reference signal patterns based on relative speed between a transmitter and receiver

Disclosed are techniques for wireless communication. In an aspect, a first user equipment (UE) establishes a radio resource control (RRC) connection for a communication session with a second UE, establishes a signaling radio bearer (SRB) for the communication session with the second UE on a first frequency band, sends, to the second UE over the SRB on the first frequency band, a first RRC message to establish a data radio bearer (DRB) for the communication session on a second frequency band, the first RRC message including one or more parameters for establishing the DRB on the second frequency band, and configures the DRB on the second frequency band based on the one or more parameters in the first RRC message and/or a device-to-device discovery procedure performed in the first frequency band.

Establishing radio bearers on millimeter wave frequencies for device-to-device communications

An improved manner of transmitting and receiving messages in sidelink communication is presented in which a wireless device receives sidelink control information (SCI) that indicates a zone ID associated with a sidelink message. The wireless device determines a location of the wireless device and determines whether to send feedback for the sidelink message based, at least in part, on the zone ID associated with the sidelink message and the location of the wireless device. The feedback may include hybrid automatic repeat request (HARQ) feedback, and the sidelink message may include a groupcast message. The wireless device may further receive an indication of an intended range in the SCI and may determine whether to send the feedback based on a combination of the zone ID and the intended range for the sidelink message.

Transmission with indication of geographic area

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify multiple candidate sets of physical sidelink feedback channel (PSFCH) transmissions that include hybrid automatic repeat request (HARQ) feedback for sidelink communications received from one or more peer UEs. The UE may select, from one or more of the multiple candidate sets that satisfy a PSFCH transmit power constraint, at least one candidate set that has a highest value for a utility parameter among utility parameters associated with each of the one or more candidate sets that satisfy a PSFCH transmit power constraint. The UE may transmit, on a PSFCH, the plurality of PSFCH transmissions included in the at least one candidate set in a HARQ feedback occasion. Numerous other aspects are provided.

Concurrent physical sidelink feedback channel transmission

A method implemented on a UE includes determining an application class of an application, and permitting or barring access by the application to a communication network according to a comparison of the determined application with a rule to provide application class based access control. The application is classified into the determined application class. The application is classified into the determined application class by a home network. The application is classified into the determined application class by a 3GPP layer. The application is classified into the determined application class by a visited network. The visited network classifies the application into a further application class. The rule includes a list of applications for permitting or barring access by the applications according to the comparison of the determined application class with the rule.

Methods for application specific access control

Aspects relate to mechanisms for a wireless communication device to generate a superposition transmission of a sidelink signal to be transmitted to at least one receiving wireless communication device and an uplink signal to be transmitted to a base station. The wireless communication device may transmit the superposition transmission on resources allocated by the base station on a common carrier utilized for both sidelink and uplink transmissions. The superposition transmission includes a base layer corresponding to the uplink signal and an enhanced layer corresponding to the sidelink signal. The wireless communication device may further generate and transmit interference assistance information to the receiving wireless communication device for use by the receiving wireless communication device in canceling the base layer from the superposition transmission.

Superposition transmission of sidelink and uplink

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may detect an out-of-coverage scenario based at least in part on determining that a synchronization source associated with a wireless network is unavailable or has a signal strength that fails to satisfy a threshold. The UE may transmit, on a sidelink channel, a sidelink synchronization signal in a transmission period that includes a plurality of synchronization signal occasions based at least in part on the out-of-coverage scenario. In some aspects, the UE may transmit the sidelink synchronization signal according to a reduced duty cycle that causes the sidelink synchronization signal to be transmitted during fewer than all of the plurality of synchronization signal occasions. Numerous other aspects are provided.

Power-efficient sidelink synchronization signal transmission

In an aspect, the present disclosure includes a method, apparatus, and computer readable medium for wireless communications for receiving, by a relay user equipment (UE) from a remote UE, a remote UE radio resource control (RRC) message for establishing a relayed communication between the remote UE and a network entity via the relay UE; determining, by the relay UE, remote UE information associated with the remote UE for establishing a remote UE communication context between the relay UE and the network entity based on the remote UE RRC message; and transmitting, by the relay UE to the network entity, the remote UE RRC message and the remote UE information.

Techniques for multiplexing remote UE RRC messages in a wireless communication system

Methods, systems, and devices for wireless communications are described. A transmitter user equipment (UE), a receiver UE, or both of a sidelink communications link may detect a radio link failure (RLF) on the sidelink communications link. For example, the transmitter UE may perform a radio link monitoring procedure to identify the RLF. Additionally or alternatively, the receiver UE may detect if the RLF occurs based on using a timer or counter. Accordingly, the receiver UE may initiate the timer when no sidelink transmission is received and may declare RLF upon the timer expiring. The receiver UE may initiate the timer when a data transmission is not received, when a data transmission is supposed to be received and is not received, not decoding sidelink control information (SCI), not receiving the SCI, etc.

Handling of sidelink radio link failure

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a first transmission, wherein the first transmission includes information identifying a window, and wherein the UE is to transmit at least part of a second transmission in the window; and transmit at least part of the second transmission in the window. Numerous other aspects are provided.

Communication using semi-persistent scheduling and sensing

Certain aspects of the present disclosure provide techniques for mapping two-stage sidelink control with multiple layer sidelink data channel. A first user equipment (UE) can rate-match a multiple-layer second stage of a two-stage sidelink control information (SCI) transmission as a single layer. The first UE transmits the multiple-layer second stage of the two-stage SCI, to a second UE, using multiple antenna ports.

Mapping two-stage sidelink control with multi-layer sidelink data channel

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may reserve a transmission resource for transmitting a transmission block (TB) via a sidelink communication; reserve a retransmission resource for retransmitting the TB, wherein the retransmission resource is reserved such that at least one hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback occasion occurs between transmission of the TB and a first retransmission of the TB; and communicate with another UE via the sidelink communication based at least in part on the transmission and retransmission resources. Numerous other aspects are provided.

Reservation periodicity for NR V2X periodic scheduling

Some aspects described herein relate to determining, by a transmitter user equipment (UE) in sidelink communications with a receiver UE, a feedback forwarding timing capability based at least in part on a first timing for receiving and processing feedback from the receiver UE, and receiving, from an access point and based on the feedback forwarding timing capability, at least an uplink resource grant for transmitting feedback for at least one of sidelink communications or downlink communications. Other aspects relate to determining, by a transmitter UE in sidelink communications with a receiver UE, a timing capability for the receiver UE to at least one of receive sidelink communications from the transmitter UE or report feedback for the sidelink communications to the transmitter UE.

Techniques for determining feedback timing capability in sidelink wireless communications

A user equipment in a vehicle (v-UE) may transmit ranging signals, sometimes referred to as physical ranging signals (PRS), via inter-vehicle messages. The vehicle may be designated as a representative of a cluster of vehicles, e.g., in a vehicle platoon, and may broadcast and receive PRS on behalf of the cluster, while no other vehicles in the cluster broadcast PRS. PRS received from single representative vehicle in a separate cluster may be used to determine the inter-cluster distance between the two clusters. If the inter-cluster distance falls below a predetermined threshold, the v-UE may instruct all other vehicles in its cluster to begin broadcasting PRS, so that each vehicle can determine its distance to all other vehicles. Accordingly, the overhead due to broadcast PRS may be minimized until, e.g., accurate positioning between vehicles is warranted.

Cluster-based approach to positioning of vehicles in vehicle platooning or autonomous trucking

Embodiments include systems and methods for sidelink communications. In embodiments, a processor of a wireless device may determine signal strength information and priority information associated with a sidelink communication resource. The processor may determine coordination information based on the determined signal strength information and priority information. The processor may generate a message to include the determined coordination information. The processor may transmit the generated message including the determined coordination information to a second wireless device. In some embodiments, the generated message may be a control message, such as a medium access control control-element (MAC-CE) or a sidelink control information message.

Generating coordination information for sidelink communications

Growing community of inventors

Hillsborough, NJ, United States of America

Sudhir Kumar Baghel