Qualcomm Incorporated

Apple Inc.

Intel Corporation

Bharat Shrestha

Umesh Phuyal

Alberto Rico Alvarino

Ayan Sengupta

Xiao Feng Wang

Liangping Ma

Peter S Gaal

Jun Ma

Mungal Singh Dhanda

Le Liu

Prasad Reddy Kadiri

Changhwan Park

Huilin Xu

Debdeep Chatterjee

Yujian Zhang

Qiaoyang Ye

Juan Montojo

Youn Hyoung Heo

Wanshi Chen

Candy Yiu

Yi Guo

Marta Martinez Tarradell

Jaemin Han

Seau Sian Lim

Amer Catovic

Gang Xiong

Stephen William Edge

Jeongho Jeon

Honglei Miao

Dan Zhang

Luis Fernando Brisson Lopes

Hong He

Gregory Vladimirovich Morozov

Abhijeet Ashok Kolekar

Seyedkianoush Hosseini

Xipeng Zhu

Masato Kitazoe

Yongjun Kwak

Alexander Sasha Sirotkin

Puneet K Jain

Rajeev Kumar

Shankar Krishnan

Tao Luo

Xiaoxia Zhang

Kazuki Takeda

Peter Pui Lok Ang

Haris Zisimopoulos

Richard Charles Burbidge

Murali Narasimha

Qiang Wu

Jing Zhu

Sudeep K Palat

Salvatore Talarico

Lenaig Genevieve Chaponniere

Anthony Lee

Vivek Rajendran

Meghashree Dattatri Kedalagudde

Maruti Gupta Hyde

Dmitry Dikarev

Timothy F Cox

Yushu Zhang

Dae Won Lee

Mostafa Khoshnevisan

Alexei Vladimirovich Davydov

Hung Dinh Ly

Jie Cui

Stefano M Faccin

Joonyoung Cho

Miguel Griot

Markus Dominik Mueck

Sergey Panteleev

Joey Chou

Xu Zhang

Rui Huang

Satish Chandra Jha

Geng Wu

Kathiravetpillai Sivanesan

Qian Li

Liangchi Hsu

Andrey Chervyakov

Yizhi Yao

Hua Li

Robert Zaus

Farid Adrangi

Jerome Parron

Sebastian Speicher

Dawei Ying

Osama Lotfallah

Francesco Pica

Avik Sengupta

Yuhan Zhou

Feng Yang

Lu Lu

Chang Hong Shan

Hassan Ghozlan

Jae Ho Ryu

Chiranjib Saha

Yaser M Fouad

Joonbeom Kim

A base-station (BS) receiving a random access request from user equipment (a UE), followed by a connection request. The connection request contains UE identity information which may have one of multiple formats depending on whether the access request and/or the connection request indicate that the UE is operating as a bandwidth-limited (BL) UE, an enhanced coverage (CE) UE, or a UE that operates in neither the BL mode nor the CE mode. In the BL mode, the UE may transmit a truncated identifier that is sufficient for the BS to retrieve capability information for the UE prior to transmitting a resource grant to the UE. The BS may then configure the UE and BS to using a radio configuration optimized for the UE's capabilities and transmit the resource grant in accordance with the optimized configuration.

Truncated identification indicators for early user equipment (UE) capability retrieval

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 a method of wireless communication by a user equipment (UE). The method generally includes performing a mobility procedure to establish a connection in a target radio access technology (RAT) while maintaining a context established in a source RAT, wherein one of the source RAT or target RAT is a terrestrial network (TN) RAT and the other is a non-terrestrial network (NTN) RAT and sending a tracking area update (TAU) request after establishing the connection in the target RAT.

Handover between terrestrial network and nonterrestrial network

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

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

An apparatus of a Radio Access Network (RAN) node, a system, and a method. The apparatus includes one or more processors to generate a conditional handover (CHO) execution message to a user equipment (UE), the CHO execution message including a plurality of execution conditions to trigger execution of a handover (HO) of the UE from the RAN node to a target RAN node; and causing transmission of the CHO execution message to the UE.

Apparatus, system and method to signal and execute conditional handover in a cellular network

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine timing misalignment information for a timing misalignment between an uplink timeline and a downlink timeline associated with a non-terrestrial cell. The UE may transmit the timing misalignment information to a satellite associated with the non-terrestrial cell. Numerous other aspects are described.

User equipment timing misalignment reporting in non-terrestrial networks

A method of wireless communication performs a public land mobile network (PLMN) search for a higher priority PLMN. The PLMN search includes a candidate PLMN having a different mobile country code (MCC) than a serving PLMN. The method switches to the higher priority PLMN when the PLMN search locates the higher priority PLMN. A method determines whether a user equipment (UE) has transitioned between an international area and a national area. The method triggers PLMN selection in response to the UE having transitioned between the international area and the national area.

Wireless network selection in international areas

A user equipment (UE) selects or reselects a target cell of a non-terrestrial network or resumes connectivity with the target cell after a satellite handover for a permanently fixed low Earth orbit (LEO) cell. The target cell is a serving or non-serving cell. The UE determines a cell type of the target cell. The cell type may be a LEO cell type, a geostationary Earth orbit (GEO) cell type, a moving cell type, a fixed cell type, a temporarily fixed LEO cell type, or a permanently fixed LEO cell type. The UE completes selection or reselection of the target cell or completes the connectivity with the target cell, based on the cell type.

Cell type selection for non-terrestrial networks

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication to transmit a communication associated with a configured grant in a non-terrestrial network (NTN), the indication indicating a hybrid automatic repeat request (HARQ) process identifier and a configured grant index of the communication. The UE may perform a transmission of the communication based at least in part on the HARQ process identifier and the configured grant index. Numerous other aspects are described.

Transmission in configured grant and semi-persistent scheduling in non-terrestrial network

A scheduling offset between an uplink and downlink radio frame timing structure of a user equipment (UE) may be updated to provide for more efficient utilization of hybrid automatic repeat request (HARQ) processes in a non-terrestrial network. For instance, different UEs may experience different round trip delays (RTDs) with a non-terrestrial cell. Different UEs may be configured with different scheduling offsets such that scheduling delays may be reduced and HARQ processes identifiers may be reused more rapidly. Additionally or alternatively, wireless communications systems may define one or more separation distances (or timing thresholds) for timing between communications and HARQ processes may be reused based on the separation distance threshold (e.g., such that a satellite may reuse a HARQ process ID for two scheduled communications that have not yet been performed by the UE).

Data channel timelines in wireless communications systems

In a communication between a user equipment (UE) and a network node, the UE may receive a grant of uplink (UL) shared channel (SCH) resources from the network node. Each of the UL SCH resources may be associated with one of a plurality of hybrid automatic repeat request (HARQ) processes. Each HARQ process may be at least one of a plurality of HARQ process types, and each HARQ process type may be based on HARQ feedback status and HARQ retransmission status. The UE may transmit a control message on one or more UL SCH resources in response to the one or more UL SCH resources being determined to be usable based on the HARQ process type of the HARQ processes associated with the one or more of the UL SCH resources.

Hybrid automatic repeat request feedback in network

Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a message from a first non-terrestrial network cell indicating cell synchronization information for a second non-terrestrial network cell. In some examples, the cell synchronization information may indicate whether the first non-terrestrial network cell and the second non-terrestrial network cell are synchronized at a reference point. Additionally, or alternatively, the cell synchronization information may indicate a timing offset value between a first uplink time synchronization reference point of the first non-terrestrial network cell and a second uplink time synchronization reference point of the second non-terrestrial network cell. The UE may calculate a timing associated with signaling from the second non-terrestrial network cell based at least in part on the cell synchronization information. The UE may receive one or more signals from the second non-terrestrial network cell based at least in part on the calculated timing.

Timing synchronization for non-terrestrial network communications

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Hillsboro, OR, United States of America

Bharat Shrestha