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

Alexandros Manolakos

Seyedkianoush Hosseini

Hwan Joon Kwon

Ahmed Elshafie

Peter S Gaal

Yi Huang

Peter Pui Lok Ang

Yu Zhang

Weimin Duan

Runxin Wang

Shimman Arvind Patel

Seyed Ali Akbar Fakoorian

Gokul Sridharan

Wei Jennifer Yang

Joseph Patrick Burke

Yan Zhou

Wooseok Nam

Qian Zhang

Renqiu Wang

June Namgoong

Tao Luo

Joseph Binamira Soriaga

Naga Bhushan

Mostafa Khoshnevisan

Chih-Ping Li

Pavan Kumar Vitthaladevuni

Gabi Sarkis

Seyong Park

Michael Levitsky

Yeliz Tokgoz

Daniel Paz

Pinar Sen

Linhai He

Thomas Valerrian Pasca Santhappan

Aamod Dinkar Khandekar

Yuchul Kim

Marwen Zorgui

Saeid Sahraei

Jing Jiang

Taesang Yoo

Jing Lei

Charline Hao

Jing X Sun

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

Junyi Li

Navid Abedini

Kazuki Takeda

Yongbin Wei

Iyab Issam Sakhnini

Assaf Touboul

Jibing Wang

Peng Cheng

Yong Li

Gurkanwal Singh Sahota

Ruhua He

Rahul Malik

Mihir Vijay Laghate

Sam Heidari

Lai Kan Leung

Hossein Dehghan

Marco Papaleo

Ruifeng Ma

Mohammed Ali Mohammed Hirzallah

Hyojin Lee

Alexander Dorosenco

Cong Nguyen

Ting Kong

Carl Hardin

Ahmed Mohamed Eltawil

Lu Yuan

Chu-Hsiang Huang

Jay King

Dai Lu

Nicholas Michael Carbone

Fadi Joseph Kurdahi

James Krysl

Sung Hyun Hwang

Michael A Kongelf

Lida Akhoondzadehasl

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling that indicates a configuration for subband full duplex (SBFD) slots and a random access channel (RACH) configuration for SBFD slots. The UE may transmit at least one instance of a RACH message in an uplink subband of an SBFD slot in accordance with the RACH configuration. The RACH configuration may enable a UE to repeat a RACH message or transmit a multi-slot RACH message across an SBFD slot and an uplink slot. The RACH configuration may map synchronization signal blocks (SSB)s to RACH occasions in the uplink subband of the SBFD slot. In some examples, the SSBs may be mapped across multiple (e.g., consecutive) SBFD slots. In some cases, the RACH configuration may enable a UE to repeat a RACH message or transmit a multi-slot RACH message across multiple SBFD slots.

Physical random access channel for uplink-subband in subband full duplex

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may transmit a channel estimation granularity indication that specifies a channel estimation granularity associated with generating channel state information (CSI) that is based at least in part on a full-duplex configuration. The network node may receive the CSI associated with the channel estimation granularity indication. Numerous other aspects are described.

Channel state information reference signal estimation granularity configuration in full-duplex

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a message indicating a configuration for measurement of cross-link interference associated with the UE. The configuration may indicate one or more TCI states for the UE to use for performing one or more cross-link interference measurements. The UE may perform the one or more cross-link interference measurements in accordance with the configuration. The UE may perform the one or more cross-link interference measurements over a set of cross-link interference resources using the one or more TCI states. The UE may transmit a cross-link interference report indicating one or more cross-link interference metrics corresponding to the one or more cross-link interference measurements.

Cross-link interference measurement and reporting in a multiple transmission and reception point system

Techniques and apparatus for configuring a reference signal for measuring cross-link interference in wireless communication systems. A method that may be performed by a user equipment (UE) includes receiving signaling indicating a configuration for a reference signal for measuring cross-link interference and indicating a type of the reference signal as zero-power or non-zero-power; and taking one or more actions in response to the type of the reference signal.

Reference signal configuration for measuring cross-link interference in a full duplex environment

Methods, systems, and devices for wireless communications are described. Communication devices may perform secret key generation using a set of line-of-sight (LOS) communication modes to secure a physical channel. For example, a first device and a second device may communicate a set of reference signals over the physical channel using a set of LOS communication modes. The first device and the second device may generate a secret key based on the set of LOS communication modes, for example, by using information associated with the set of LOS communication modes to compute the secret key using a key derivation function that outputs the secret key. The first device and the second device may secure the physical channel by encrypting signaling between the first device and the second device with the secret key and communicating the signaling over the physical channel using LOS communications.

Secret key extraction for line-of-sight communications

Certain aspects of the present disclosure provide a method for wireless communications by a user equipment (UE), generally including receiving assistance information, from a network entity, indicating a mapping between beams across different remote radio heads (RRHs) and using the assistance information to perform beam management when the UE is moving from the coverage area of one RRH to the coverage area of another RRH.

Assistance information for beam mapping across different remote radio heads

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information indicative of a subband full duplex (SBFD) configuration for communicating, based on a half duplex (HD) configuration at the UE, with a full duplex network node associated with a time division duplexing (TDD) carrier, the SBFD configuration corresponding to one or more bandwidth parts (BWPs) associated with a plurality of resources comprising at least one HD resource and at least one SBFD resource, the one or more BWPs comprising at least one of a downlink (DL) BWP or an uplink (UL) BWP. The UE may communicate based on the configuration information. Numerous other aspects are described.

Bandwidth part configurations for mixed half duplex and subband full duplex communications

Certain aspects of the present disclosure provide a method for wireless communications by a user equipment (UE) generally including transmitting, to a network entity, capability information indicating a capability of the UE for uplink subband filtering, receiving signaling scheduling an uplink transmission from the UE in a subband full duplex (SBFD) slot on resources determined based on the indicated capability, and transmitting the uplink transmission in the SBFD slot with uplink subband filtering, in accordance with the scheduling.

Enhanced uplink emission capability for subband full duplex

Aspects for time bundling an SRS resource over a plurality of instances are disclosed. The apparatus may include a user equipment (UE). The user equipment may receive a configuration from a base station for time-bundling at least one sounding reference signal (SRS) resource. The time-bundling may be performed by the UE transmitting a plurality of SRS signals at different times using an identical center frequency and at least two different frequency resource allocations. The UE may transmit the plurality of SRS signals based on the configuration.

Sounding reference signal (SRS) time bundling for partial frequency sounding

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)

Growing community of inventors

San Jose, CA, United States of America

Muhammad Sayed Khairy Abdelghaffar