Qualcomm Incorporated

Samsung Electronics Co., Ltd.

Le Liu

Alberto Rico Alvarino

Umesh Phuyal

Kazuki Takeda

Ayan Sengupta

Peter S Gaal

Wanshi Chen

Prasad Reddy Kadiri

Xiaoxia Zhang

Xiao Feng Wang

Tao Luo

Mostafa Khoshnevisan

Mungal Singh Dhanda

Juan Montojo

Peter Pui Lok Ang

Bharat Shrestha

Chao Wei

Hongbo Si

Xipeng Zhu

Jing X Sun

Liangping Ma

Huilin Xu

Eko Nugroho Onggosanusi

Chiranjib Saha

Wooseok Nam

Hung Dinh Ly

Jun Ma

Young-Han Nam

Raghavendra Shyam Ananda

Alexandros Manolakos

Aris Papasakellariou

Amer Catovic

Srikanth Menon

Linhai He

Jing Lei

Stefano M Faccin

Masato Kitazoe

Miguel Griot

Sitaramanjaneyulu Kanamarlapudi

Tae Min Kim

Seyedkianoush Hosseini

Yuchul Kim

Renqiu Wang

Supratik Bhattacharjee

Changhwan Park

Murali Paravath Menon

Tingfang Ji

Hao Xu

Gavin Bernard Horn

Krishna Kiran Mukkavilli

Haris Zisimopoulos

Gowrisankar Somichetty

Qiang Shen

Vijayvaradharaj Tirucherai Muralidharan

Rebecca Wen-Ling Yuan

Youngbum Kim

Sven Fischer

Qiaoyu Li

Yiqing Cao

Qiongjie Lin

Marco Papaleo

Arash Mirbagheri

Yingzhe Li

Jae Ho Ryu

Prashanth Akula

Ahmed Zaki

Praveen Maruthoormana Purushothaman

Sony Akkarakaran

Yan Zhou

Joseph Binamira Soriaga

Alexei Yurievitch Gorokhov

Taesang Yoo

Ozcan Ozturk

Gabi Sarkis

Heechoon Lee

Edward George Tiedemann, Jr

Taehyoung Kim

Ahmed Elshafie

Aziz Gholmieh

Taeyoung Kim

Peng Cheng

Brian Clarke Banister

Chenxi Hao

Hari Sankar

Amir Farajidana

Li Guo

Yongjun Kwak

Valentin Alexandru Gheorghiu

Lenaig Genevieve Chaponniere

Wei Yang

Luis Fernando Brisson Lopes

Hao Chen

Francesco Pica

Srinivas Yerramalli

Lorenzo Ferrari

Timo Ville Vintola

Gene Fong

Prashant Sharma

Ganesh Nagamani

Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for efficiently reporting channel state information (CSI) with limited overhead. In one aspect, if a user equipment (UE) is configured to transmit data and CSI to a base station periodically, the UE may transmit the CSI when the UE has data to transmit to the base station. In particular, the UE may transmit data and a CSI report during a transmission opportunity if the UE has data to transmit in the transmission opportunity. Otherwise, the UE may suppress transmission of the CSI report. In another aspect, a UE may be configured to transmit CSI to a base station when downlink channel conditions change. In particular, the UE may request to report CSI to the base station when channel conditions change, and the base station may trigger the UE to report the CSI after receiving the request.

Channel state information triggering for uplink dominant traffic

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit capability information indicating a capability of the UE to receive multicast communications while operating in an inactive state. The UE may receive, from a first cell, configuration information that indicates a common frequency resource (CFR) associated with receiving multicast communications from the first cell while operating in the inactive state. The UE may receive, from the first cell, multicast mobility information associated with receiving multicast communications from one or more neighboring cells while operating in the inactive state. The UE may receive, while operating in the inactive state, one or more multicast communications from at least one of the first cell or a second cell based at least in part on at least one of the configuration information or the multicast mobility information. Numerous other aspects are provided.

Configuration of multicast reception and mobility for user equipment in an inactive state

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

Methods, systems, and devices for wireless communications are described for identifying a modulation and coding scheme (MCS) independently of a channel quality indicator (CQI) table that is configured at a user equipment (UE). A rate matching parameter may be determined based on one or more of the MCS or CQI table, which may be used for dimensioning a soft buffer that is used to store received transmissions for decoding. The MCS field may be a six-bit field and may indicate an MCS that exceeds a highest MCS associated with the CQI table. The base station may activate a semi-persistent scheduling (SPS) configuration at the UE through an activation command, and the UE may verify that SPS is activated based on information in a number of different fields of control information which may include the MCS field.

Rate matching and semi persistent scheduling configuration in wireless communications

A method for wireless communication by a network node includes transmitting, to a group of user equipment (UEs), radio resource control (RRC) signaling to configure a function for enabling and disabling hybrid automatic repeat request (HARQ) feedback for a set of N instances of a multicast transport block (TB). The method also includes transmitting, to the group of UEs, the set of N instances of the multicast TB. The method further includes transmitting, to the group of UEs, a downlink control information (DCI) message on a group-common physical downlink control channel (PDCCH) with a cyclic redundancy check (CRC) scrambled by a group-common radio network temporary identifier (RNTI) configured for the group of UEs. The method also includes receiving, from one or more UEs of the group of UEs, a HARQ feedback message associated with one or more instances of the set of N instances after transmitting all N instances.

Hybrid automatic repeat request (HARQ) feedback control for multicast communications

A method for wireless communication at a user equipment (UE) includes receiving, from a base station, multicast data via a multicast channel. The method also includes transmitting, to the base station, multicast feedback based on receiving the multicast data. In some examples, the multicast feedback is associated with a group of UEs including the UE. The method further includes receiving, from the base station, a re-transmission of the multicast data on the multicast channel or a unicast channel based on one or more of a number of UEs served by the base station, a number of UEs from the group of UEs providing the multicast feedback, or a radio channel condition.

Multicast radio bearer (MRB) with radio link control (RLC) re-transmission

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may measure a reference signal received power (RSRP) associated with a reference signal (RS) broadcast by a network. The UE may further measure a received signal strength indicator (RSSI) using a plurality of resource elements (REs) that do not include the RS and excluding REs that do include the RS. Accordingly, the UE may determine a reference signal received quality (RSRQ) associated with the RS based at least in part on the RSRP and the RSSI. Numerous other aspects are described.

Reference signal received quality for fully loaded reference signals

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

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine a group-specific multicast/broadcast communication configuration. The group-specific multicast/broadcast communication configuration may be independently configured from a unicast communication configuration and a cell-specific communication configuration. The UE may determine one or more multicast/broadcast communication parameters according to the group-specific multicast/broadcast communication configuration. The communication parameters may include a time resource allocation, a frequency resource allocation, a slot configuration, a downlink reference signal configuration and a resource mapping configuration for receiving multicast/broadcast downlink signals. The UE may receive multicast/broadcast downlink signals from the base station based on the one or more multicast/broadcast communication parameters.

Downlink shared channel configuration for multicast

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, in an idle or inactive state and in a common frequency resource (CFR) used for multicast and broadcast services (MBS), a tracking reference signal (TRS) configuration for MBS. The UE may receive a TRS according to the TRS configuration. Numerous other aspects are described.

Tracking reference signal for multicast and broadcast systems

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

Example aspects include a method, apparatus and computer-readable medium of wireless communication at a base station of a mobile network, comprising transmitting system information corresponding to an aerial cell of the mobile network or a cell having at least one aerial sector being formed by one or more uptilt beams of the base station. The aspects further include performing, according to the system information, a random access channel (RACH) procedure with an aerial user equipment (UE). Additionally, the aspects include establishing, via the aerial cell or the at least one aerial sector, a communications link with the aerial UE.

Apparatuses and methods for base stations with uptilt antennas for aerial vehicles

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 determine that a quantity of downlink control information (DCI) sizes, for a set of DCIs that the UE is to monitor and that includes a multicast DCI, satisfies a size threshold. The UE may perform a DCI size alignment procedure to adjust a DCI monitoring configuration. The UE may monitor for the set of DCIs based at least in part on performing the DCI size alignment procedure. Numerous other aspects are provided.

Multicast downlink control information configuration

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive broadcast information from a base station indicating a numerology or a reference signal (RS) pattern to be used in broadcast or multicast transmissions (e.g., a physical multicast channel (PMCH)). The UE may identify a modulation and coding scheme (MCS) associated with the broadcast or multicast transmission and may determine a transport block size (TBS) based on the MCS and at least one of the numerology or the RS pattern. For instance, a UE may determine TBS for numerologies associated with a single symbol that spans multiple subframes differently from that of other numerologies. Additionally or alternatively, a UE may determine TBS for sparse RS patterns differently from that of other RS patterns. The UE may then perform communication with the base station via the broadcast or multicast transmissions in accordance with the TBS.

Multimedia broadcast multicast services with new numerologies and reference signal patterns

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Fremont, CA, United States of America

Le Liu