Qualcomm Incorporated

University of California

Quantenna Communications, Inc.

Muhammad Sayed Khairy Abdelghaffar

Ahmed Attia Abotabl

Krishna Kiran Mukkavilli

Abdelrahman Mohamed Ahmed Mohamed Ibrahim

Huilin Xu

Wanshi Chen

Tingfang Ji

Hung Dinh Ly

Seyedkianoush Hosseini

Hwan Joon Kwon

Alexandros Manolakos

Ahmed Elshafie

Peter S Gaal

Yi Huang

Peter Pui Lok Ang

Yu Zhang

Weimin Duan

Shimman Arvind Patel

Runxin Wang

Seyed Ali Akbar Fakoorian

Wei Jennifer Yang

Gokul Sridharan

Joseph Patrick Burke

Wooseok Nam

Renqiu Wang

Yan Zhou

Qian Zhang

June Namgoong

Joseph Binamira Soriaga

Tao Luo

Naga Bhushan

Mostafa Khoshnevisan

Chih-Ping Li

Pavan Kumar Vitthaladevuni

Gabi Sarkis

Seyong Park

Michael Levitsky

Yeliz Tokgoz

Linhai He

Daniel Paz

Pinar Sen

Thomas Valerrian Pasca Santhappan

Aamod Dinkar Khandekar

Yuchul Kim

Marwen Zorgui

Saeid Sahraei

Jing Jiang

Taesang Yoo

Jing Lei

Charline Hao

Juan Montojo

Sony Akkarakaran

Wei Zeng

Alexei Yurievitch Gorokhov

Jay Kumar Sundararajan

Yongjun Kwak

Roberto Rimini

Bo Chen

Allen Minh-Triet Tran

Giovanni Chisci

Yuanning Yu

Kexin Xiao

Jing X Sun

Kazuki Takeda

Yongbin Wei

Iyab Issam Sakhnini

Assaf Touboul

Peng Cheng

Gurkanwal Singh Sahota

Sam Heidari

Lai Kan Leung

Hossein Dehghan

Marco Papaleo

Ruifeng Ma

Mohammed Ali Mohammed Hirzallah

Hyojin Lee

Alexander Dorosenco

Cong Nguyen

Ahmed Mohamed Eltawil

Carl Hardin

Lu Yuan

Jay King

Nicholas Michael Carbone

Dai Lu

Fadi Joseph Kurdahi

James Krysl

Sung Hyun Hwang

Michael A Kongelf

Lida Akhoondzadehasl

Ronnie Machado

Amr M A Hussein

Amin Khajeh

Vijay Kumaravelu

Bassem Khalfi

Methods, systems, and devices for wireless communication are described to support indication of a single frequency network (SFN) mode and associated parameters to a user equipment (UE), while the UE is operating in an idle mode. While operating in the idle mode, the UE may receive signaling from a transmission reception points (TRP), indicating that an SFN will be used for broadcast signaling received concurrently from multiple TRPs. Based on receiving the indication of the SFN, the UE may receive the broadcast signaling via a downlink control channel. For example, the UE may receive the broadcast signaling concurrently from a first TRP via a first beam and from a second TRP via a second beam, where the first and second beams may each be associated with a respective synchronization signal block (SSB).

Beam identification for paging messages on a single frequency network

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information for a sounding reference signal (SRS) resource set, the configuration information indicating a usage type for the SRS resource set associated with Doppler tracking and a configuration for one or more associated SRS resource identifiers. Some configuration parameters of the SRS resource set and the associated SRS resource identifiers can be dynamically reconfigured in order to allow adaptive SRS time domain pattern for enhanced Doppler parameter estimation and/or synchronization loop tracking, among other examples. The UE may transmit one or more SRSs in accordance with the configuration or dynamic reconfiguration information for the SRS resource set and the associated SRS resources based at least in part on receiving the configuration and/or reconfiguration information. Numerous other aspects are described.

Configurations and dynamic signaling for doppler tracking sounding reference signal resource sets

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of whether a rate match pattern indicates a location of an uplink sub-band and at least one guard band for sub-band full duplex communication, the rate match pattern identifying resources that are to be avoided for downlink data communication. The UE may communicate according to the rate match pattern based at least in part on the indication. Numerous other aspects are described.

Indicating sub-band locations for sub-band full duplex communication

Methods, systems, and devices for wireless communications are described that provide for mitigation of interference related to full-duplex communications for random access channel (RACH) initial access procedures in shared radio frequency spectrum. A user equipment (UE) may send different RACH preambles subsequent to a channel access procedure, based on whether full-duplex communications or half-duplex communications are being used at a corresponding network entity. The different RACH preambles may include a longer RACH preamble that is used when full-duplex is present, and a shorter RACH preamble that is used when full-duplex is not present. The shorter or longer RACH preamble may be used, for example, based at least in part on an open-loop transmit power for the RACH procedure, a RACH occasion configuration that provides different preamble lengths for different RACH occasions, a full-duplexing type that is being used, or any combinations thereof.

Random access preamble techniques in full-duplex wireless communications

Methods, systems, and devices for wireless communications are described. In some aspects, a user equipment (UE) and a network entity may support one or more signaling-based mechanisms according to which the network entity may inform the UE of which time and frequency resources may be used for full-duplex communication. The network entity transmit a first message to configure multiple resource block (RB) sets for the UE, where each RB set is associated with unique identifying information. To inform the UE of which time and frequency resources may be used for full-duplex communication, the network entity may transmit a second message that indicates one or more slot formats on a per RB set basis. As such, the network entity may schedule the UE for full-duplex communication in accordance with indicating that overlapping symbols of a first RB set and a second RB set are allocated for uplink and downlink, respectively.

Techniques for slot format configuration per resource block set for subband full-duplex operation

This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for bandwidth part (BWP) dynamic adaptation in accordance with an energy level at a user equipment (UE). In some systems, the UE may implement techniques for power savings by operating according to a narrower BWP in accordance with an energy level at the UE. In some implementations, the UE may reduce the bandwidth size of the active BWP if the UE energy level satisfies a threshold. The UE may transmit signaling to the network indicating that the bandwidth size of the active BWP is reduced. Additionally, or alternatively, the UE may fall back to a default BWP if the UE energy level satisfies a threshold. For example, the UE may fall back to the default BWP prior to expiration of a timer configured to trigger the UE to fall back to the default BWP.

Bandwidth part (BWP) dynamic adaptation in accordance with an energy level at a user equipment (UE)

This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for cross-link interference (CLI) measurement in subband full-duplex (SBFD) operation. In some aspects, a first user equipment (UE) may measure CLI from a second UE during a SBFD symbol in one or more uplink subbands or in one or more downlink subbands, or in a combination thereof. The first UE and a network entity may support one or more prioritization rules associated with one or both of a capability of the first UE and potential scheduling conflicts at the first UE during the SBFD symbol. In some aspects, the first UE may measure a CLI reference signal transmitted by the second UE in one or more uplink subbands and in one or more downlink subbands allocated to the first UE to obtain an inter-subband CLI measurement and an intra-subband CLI measurement.

Cross-link interference (CLI) measurement in subband full-duplex (SBFD) operation

Methods, systems, and devices for wireless communications are described. In one aspect, a UE may report channel state feedback (CSF) to a network entity based on channel state information (CSI) measurements and CLI measurements. In another aspect, a UE may explicitly report CLI measurements to a network entity. In yet another aspect, a UE may report a signal-to-interference-plus-noise ratio (SINR) to a network entity based on CLI measurements, and the network entity may trigger the UE to perform further CLI measurements on signals received from other UEs based on the SINR. In yet another aspect, a UE may generate a report using CLI measurements based on whether the UE is allocated enough time to generate and transmit the report. In yet another aspect, a UE may identify a suitable priority for reporting CLI to a network entity.

Cross-link interference reporting configuration and payload design

Methods, systems, and devices for wireless communications are described. In some examples, a UE may receive an indication of a set of sounding reference signal (SRS) parameters corresponding to a set of SRS resources for transmitting SRSs, where the set of SRS resources may refer to frequency, or time, or both. In some examples, the SRS parameters may include, among other examples, a frequency allocation, a frequency overlap parameter, a number of allocated symbols, a comb value, a cyclic shift, a comb offset, a frequency hopping parameter, a repetition parameter, a symbol grouping parameter, or any combination thereof. The UE may determine an SRS configuration for the one or more SRSs based on the set of SRS parameters and transmit the one or more SRSs based on the configuration. In some examples, the SRS configuration includes a configuration for SRS frequency hopping, or SRS repetition, or both.

Enhanced sounding reference signal resource configurations

Methods, systems, and devices for wireless communications are described. A base station that may include at least two transmission reception points (TRPs) next to a high speed train (HST) may transmit, to a user equipment (UE) on the HST, an indication of a quasi co-location (QCL) relationship indicating a relationship between a plurality of tracking reference signals (TRSs) and a demodulation reference signal (DMRS) of a data channel. The plurality of TRSs may include a first TRS and a second TRS. The UE may receive, from a first TRP, the first TRS associated with an occasion of the data channel, and receive, from a second TRP, the second TRS associated with the occasion of the data channel. The UE may perform, based on the indication of the QCL relationship, a channel estimation procedure for the data channel based on the DMRS, the received first TRS, and the received second TRS.

Quasi co-location type for doppler pre-compensated reference signal

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control information indicative of a set of time division duplexing (TDD) patterns. A first dedicated TDD pattern of the set of TDD patterns may be dedicated for TDD communications between the UE and a first transmission and reception point (TRP) from a set of multiple TRPs associated with a network entity. The UE may determine at least a second dedicated TDD pattern for TDD communications between the UE and at least a second TRP from the set of multiple TRPs based on the set of TDD patterns. The UE may communicate with the network entity via at least one of the first TRP or the second TRP in accordance with the first dedicated TDD pattern, the second dedicated TDD pattern, or both.

Techniques for implementing full-duplex communications via multiple transmission and reception points

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to receive, from a base station, an indication of a set of resources for transmitting a set of phase-coherent sounding reference signals (SRSs). The UE may receive, from the base station, a control message indicating a cancellation of an allocation of a first portion of the set of resources. The UE may determine a phase coherency configuration associated with a second portion of the set of resources based on receiving the control message indicating the cancellation. The UE may then be configured to transmit one or more SRSs within the second portion of the set of resources in accordance with the determined phase coherency configuration.

Techniques for sounding reference signal phase coherency

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive transmission configuration indication (TCI) state restriction information indicating that a TCI state associated with sub-band full-duplex (SBFD) communications is restricted for downlink communications. The UE may communicate in accordance with the TCI state restriction information. Numerous other aspects are described.

Transmission configuration indication state restriction for sub-band full-duplex communications

A user equipment (UE) may be configured to transmit or receive reference signals in flexible symbols that are indicated as used for full duplex communications. The UE may transmit or receive reference signals over frequency resources of a symbol indicated as a flexible symbol, which may configured for uplink or downlink communications, that is also configured as full duplex, which may include frequency resources for both uplink and downlink communications. The UE may determine whether or how to transmit one or more reference signals in a flexible symbol based on at least one of the bandwidth of the uplink resources or the bandwidth of the downlink resources, the frequency positions of the reference signals, or other criteria. A base station may be configured to similarly transmit or receive reference signals in flexible symbols that are indicated as used for full duplex communications.

UE behavior with reference signals in a full-duplex symbol

Methods, systems, and devices for wireless communications are described. A method for wireless communication may include receiving a single frequency networked composite reference signal (SFNed RS) at a first port of a user equipment (UE) and receiving a reference signal (RS) at a second port of the UE that is different than the first port of the UE. The method may also include performing channel estimation for at least one of the first port or the second port based at least in part on receiving the SFNed RS and the RS. A method for wireless communication may include transmitting a first portion of an SFNed RS from a first port of a first transmit/reception point to a UE and transmitting a downlink control information message to the UE that indicates at least one transmission configuration indicator state identifier that identifies the SFNed RS.

Consideration for demodulation reference signal and tracking reference signal quasi co-location relationship

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San Jose, CA, United States of America

Muhammad Sayed Khairy Abdelghaffar