Qualcomm Incorporated

Interdigital Patent Holdings, Inc.

Vid Scale, Inc.

Idac Holdings, Inc.

The Boeing Company

Argon St Incorporated

Liangping Ma

Xiao Feng Wang

Alberto Rico Alvarino

Ayan Sengupta

Bharat Shrestha

Umesh Phuyal

Jun Ma

Peter S Gaal

Huilin Xu

Qiang Wu

Le Liu

Weimin Duan

Juan Montojo

Oghenekome Oteri

Wanshi Chen

Anantharaman Balasubramanian

Mungal Singh Dhanda

Chunxuan Ye

Iyab Issam Sakhnini

Martino M Freda

Ariela Zeira

Seyedkianoush Hosseini

Mahmoud Taherzadeh Boroujeni

Moon-il Lee

Kyle Jung-Lin Pan

Rocco Di Girolamo

Stephen E Terry

Masato Kitazoe

Rui Yang

Saad Ahmad

Joseph M Murray

Thomas Stockhammer

Hung Dinh Ly

Peter Pui Lok Ang

Jing Lei

Yuchul Kim

Gokul Sridharan

Tao Luo

Xiaoxia Zhang

Yan Zhou

Kazuki Takeda

Alexei Yurievitch Gorokhov

Yan Ye

Ghyslain Pelletier

Linhai He

Robert L Olesen

Jay Kumar Sundararajan

Alexander Reznik

Muhammed Zeyd Coban

Kamel M Shaheen

James M Miller

Changhwan Park

Dan Zhang

Gregory S Sternberg

Weimin Liu

Erdem Bala

Mehmet Izzet Gurelli

Yuriy Reznik

Jean-Louis Gauvreau

Alpaslan Demir

Samian Kaur

Mihaela C Beluri

Shahrokh Nayeb Nazar

Amith Vikram Chincholi

Athmane X Touag

Wei Yu Chen

Afshin Haghighat

Angelo A Cuffaro

Louis Joseph Kerofsky

Prasad Reddy Kadiri

Tao Deng

Ravikumar V Pragada

Yugeswar Deenoo

Imed Bouazizi

Frank La Sita

Debashish Purkayastha

Ralph Neff

Douglas R Castor

Zinan Lin

Eduardo Asbun

Prashanth Haridas Hande

Yeliz Tokgoz

Dimitrios Karampatsis

Yong He

Alphan Sahin

Amer Catovic

Nikolai Konrad Leung

Robert A DiFazio

Min Wang

Danlu Zhang

Hari Sankar

Vincent Roy

Leena Zacharias

Rocco DiGirolamo

Vivek Rajendran

Wei Chen

Yan Wang

Martin Renschler

Edward L Hepler

Jae Ho Ryu

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network node, an indication of a subset of tracking reference signal (TRS) resource sets from a plurality of TRS resource sets. The UE may receive, from the network node, a TRS availability indication bitmap that indicates an availability of a TRS associated with the subset of TRS resource sets. The UE may determine that the TRS is available based at least in part on the TRS availability indication bitmap. The UE may receive, from the network node, the TRS based at least in part on the TRS availability indication bitmap indicating that the TRS is available. Numerous other aspects are described.

Indicating an availability of a tracking reference signal (TRS) associated with a subset of TRS resource sets

Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive first control signaling indicating a configuration associated with a target network node in a non-terrestrial network. The configuration may include a first UE-group configuration and a UE-specific configuration including integrity information for the first UE-group configuration. The UE may perform a connection operation based on a trust status of the first UE-group configuration.

Managing group configurations in wireless communications systems

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a first network node, a first indication of satellite assistance information that is associated with a second network node, a second indication of first timing information that is associated with the satellite assistance information, and a third indication of second timing information that is associated with the satellite assistance information. The UE may transmit an uplink signal to the second network node based at least in part on validating the satellite assistance information using the second timing information. Numerous other aspects are described.

Mobility management in a non-terrestrial network

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive system information associated with a set of neighboring cells included in a non-terrestrial network (NTN). The UE may be connected to or camped in a current cell included in the NTN. The current cell may be associated with a current platform. The UE may monitor a neighboring cell, of the set of neighboring cells, based at least in part on the system information. Numerous other aspects are provided.

System information design for neighboring cells in a non-terrestrial network

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of a loss of coherence associated with the UE. The UE may perform at least one adjustment to a transmission parameter or a reception parameter based at least in part on the indication of the loss of coherence. For example, the adjustment to the transmission parameter may include adjusting a transmit power, adjusting a transmit frequency, adapting a transmission time, changing an antenna port, or a combination thereof. Additionally, or alternatively, the adjustment to the reception parameter may include refraining from joint channel estimation across a plurality of slots, adjusting a downscaling parameter or a frequency tuning associated with at least one reception antenna, refraining from blind decoding, or a combination thereof. Numerous other aspects are described.

Indicating a loss of coherence in a wireless network

Certain aspects of the present disclosure provide techniques for wireless communications by a user equipment (UE) generally including receiving signaling indicating one or more values for a scheduling offset between a downlink slot where downlink control information (DCI) is received and an uplink slot for transmitting a physical uplink shared channel (PUSCH) scheduled by the DCI; determining an additional offset to be used in conjunction with the scheduling offset values to determine PUSCH transmission timing; determining a power control adjustment for a sounding reference signal (SRS) transmission based on transmission power control (TPC) commands received in a time interval determined by one of the scheduling offset values and the additional offset; and transmitting SRS in an SRS transmission occasion, in accordance with the determined power control adjustment.

Power control for sounding reference signal in non-terrestrial networks

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may obtain, at an access stratum (AS) layer, an indication of an inter-satellite link (ISL) activation that is to take place at an activation time. The wireless communication device may receive communications. The wireless communication device may buffer the communications in a buffer at the AS layer. The wireless communication device may release the communications from the buffer to an upper protocol layer at a rate of release that is to change between a transition start time and the activation time. Numerous other aspects are described.

Buffer release for inter-satellite link transition

Methods, systems, and devices for wireless communications are described. Described techniques provide for mitigating error in time or frequency adjustments for preambles of a random access procedure. A user equipment may use one value for the adjustment when transmitting data to a non-terrestrial network, but then transmit the preamble of a random access procedure according to a preamble-specific time or frequency adjustment based on one or more indications received from the network (e.g., rather than resetting the adjustment to '0'). By using some signaled value for the preamble-specific timing or frequency adjustment rather than resetting the adjustment to “0,” preamble reception performance may be maintained or improved with as many or fewer position measurements for the UE or non-terrestrial network entity.

Closed loop time and frequency corrections in non-terrestrial networks

Certain aspects of the present disclosure are directed to techniques for hybrid automatic repeat request (HARQ) codebook design. For example, a user equipment (UE) configured for feedback processing may comprise a memory and a processor configured to receive, from a base station (BS), a first indication of a first feedback process type for providing feedback to the BS for a plurality of feedback processes of the UE. The memory and the processor may also be configured to receive one or more first downlink transmissions from the BS associated with at least one feedback process of the plurality of feedback processes. The memory and the processor may also be configured to transmit feedback or withhold transmission of feedback to the BS regarding decoding of the one or more first downlink transmissions according to the first feedback process type.

Hybrid automatic repeat request (HARQ) codebook design

Certain aspects of the present disclosure provide techniques for selecting a first orthogonal cover code (OCC) codeword from an OCC matrix for a transmission occurring during a first transmission time interval based on a first pseudo-random codeword allocator function, such as a first pseudo-random permutation matrix, corresponding to the first transmission time interval; and sending the transmission during the first transmission time interval using the first OCC codeword.

Interference randomization in orthogonal cover codes

An example device for exchanging media data via a network includes a memory configured to store media data; and one or more processors implemented in circuitry and configured to: retrieve data representative of an expected time between a first frame of media data and a second frame of the media data from a media application; receive the first frame of the media data at a first time; wait to process the second frame of the media data until a second time that is equal to or greater than the first time plus the expected time; and process the second frame of the media data at the second time.

Signaling media timing information from a media application to a network element

Aspects described herein relate to receiving an update value for a timing advance of a satellite link between the UE and a base station, computing, based on the update value for the timing advance, a portion of a timing difference between the update value and a previous value for the timing advance of the satellite link that is corrected by closed loop timing advance control from the base station, computing, based at least in part on computing the portion, a total value for the timing advance of the satellite link, and applying, at the UE and based at least in part on the total value for the timing advance of the satellite link and the closed loop timing advance control, an applied timing advance for communicating with the base station.

Techniques for controlling timing of wireless communications devices in non-terrestrial networks

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from an entity of a non-terrestrial network (NTN), a system information block (SIB) that indicates information relating to one or more NTN SIBs that are to include at least one of ephemeris information or feeder link timing advance information. The UE may receive, from the entity of the NTN, the one or more NTN SIBs based at least in part on the information. Numerous other aspects are described.

Broadcasting of a non-terrestrial network system information block

Methods, systems, and devices for wireless communication are described. A user equipment (UE) may identify a time period during which the UE is configured to receive grants scheduling communications for the UE, wherein the grants are associated with a first grant format type. The UE may determine that the grants include a feedback process identifier exceeding a threshold value. The UE may maintain a power saving state of a discontinuous reception procedure for a feedback process associated with the feedback process identifier during the time period based at least in part on the feedback process identifier exceeding the threshold value.

Discontinuous reception for configured grant/semi-persistent scheduling

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a group discontinuous reception (DRX) configuration. The UE may receive, based on the group DRX configuration, a notification communication indicative of group handover information associated with a group of UEs that includes the UE. The UE may perform, based on the group handover information, a group handover operation between a source cell and a target cell. Numerous other aspects are described.

Group handover configurations

Growing community of inventors

San Diego, CA, United States of America

Liangping Ma