Qualcomm Incorporated

Broadcom Corporation

Zeku Technology (shanghai) Corp., Ltd.

Yu Zhang

Chao Wei

Wanshi Chen

Muhammad Sayed Khairy Abdelghaffar

Krishna Kiran Mukkavilli

Hung Dinh Ly

Alexandros Manolakos

Peter S Gaal

Tingfang Ji

Tao Luo

Mostafa Khoshnevisan

Ahmed Attia Abotabl

Hwan Joon Kwon

Yi Huang

Joseph Binamira Soriaga

Xiaoxia Zhang

Jing Jiang

Peter Pui Lok Ang

Jing Lei

Yan Zhou

Seyedkianoush Hosseini

Naga Bhushan

Alexei Yurievitch Gorokhov

Ahmed Elshafie

Gokul Sridharan

Jing X Sun

Juan Montojo

Sony Akkarakaran

Huilin Xu

Linhai He

Jay Kumar Sundararajan

Peng Cheng

Junyi Li

Hao Xu

Haitong Sun

Wooseok Nam

Durga Prasad Malladi

Wei Jennifer Yang

Seyed Ali Akbar Fakoorian

Taesang Yoo

Ozcan Ozturk

Gabi Sarkis

Juergen Cezanne

Ashwin Sampath

Renqiu Wang

John Edward Smee

Shimman Arvind Patel

Xipeng Zhu

Chenxi Hao

Qiaoyu Li

Min Huang

Runxin Wang

Bo Chen

Hyojin Lee

Ruifeng Ma

Saeid Sahraei

Changlong Xu

Jilei Hou

Liangming Wu

Weimin Duan

Ruiming Zheng

Jing Dai

Danlu Zhang

Yeliz Tokgoz

Pavan Kumar Vitthaladevuni

Yuwei Ren

Rui Hu

Hari Sankar

Wei Yang

Kangqi Liu

Kexin Xiao

Jian Li

Seyong Park

Zhifei Fan

June Namgoong

Abdelrahman Mohamed Ahmed Mohamed Ibrahim

Chong Li

Lei Xiao

Fang Yuan

Yongle Wu

Allen Minh-Triet Tran

Meilong Jiang

Jae Ho Ryu

Parisa Cheraghi

Pinar Sen

Jae Won Yoo

Wei Xi

Yuqian Cedric Wong

Huang Huang

Thomas Valerrian Pasca Santhappan

Huichun Liu

Se Yong Park

Douglas Bruce White

Jinseok Choi

Vinayak Suresh

Apparatus, methods, and computer-readable media for facilitating CSI feedback in multiple-TRP communication are disclosed herein. An example method of wireless communication by a UE includes receiving, from a base station, a report configuration message triggering a channel state feedback procedure, the UE and the base station operating in a multiple transmission and reception point (multiple-TRP) communication mode, the report configuration message requesting a multiple-TRP transmission value including at least one of a quantity of layer indicator (LI) values and a strongest TRP indicator (STI) value. The example method also includes generating channel state information (CSI) information based on the receiving of the report configuration message, the CSI information including the multiple-TRP transmission value. The example method also includes transmitting, to the base station, a report including the generated CSI information.

Methods and apparatus to facilitate CSI feedback in multiple-TRP communication

Methods, systems, and devices for wireless communication are described. The user equipment (UE) may receive a first configuration indicating a first resource set corresponding to a first set of transmit beams and a second resource set corresponding to a second set of transmit beams and a second configuration indicating a third resource set. The UE may receive reference signals using the first resource set and a first set of receive beams and reference signals using the second resource set and a second set of receive beams. The UE may transmit a first report indicating a first beam pair and a second beam pair and receive a third set of reference signals using the first receive beam, the second receive beam, and the third resource set. The UE may transmit a second report comprising a parameter indicative of a correlation between the first beam pair and the second beam pair.

Beam management procedure that supports multiple input multiple output transmissions

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network entity, a configuration of a channel state information (CSI) report including multiple codebooks, wherein each codebook, of the multiple codebooks, is associated with a corresponding antenna port configuration. The UE may compute at least one CSI processing parameter based at least in part on the configuration of the CSI report. Numerous other aspects are described.

Channel state information processing parameters for multiple configured codebooks

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitter may receive, from a receiver associated with an orbital angular momentum (OAM) multiplexing based communication, feedback; determine a selected OAM mode for communication with the receiver based at least in part on the feedback; and transmit the OAM multiplexing based communication to the receiver based at least in part on the selected OAM mode. Numerous other aspects are provided.

Mode determination for orbital angular momentum communication system

Aspects of the present disclosure provide apparatus, methods, processing systems, and computer readable mediums for determining a beamformer to apply to groups of two or more elements of a reconfigurable intelligent surface (RIS). The beamformer is applied to the groups of elements of the RIS to facilitate communications at the operating frequency by re-radiating radio signals via the elements of the RIS. For example, by grouping RIS elements in different manners and applying a beamformer (e.g., precoding weights) to the group as if the group were a single RIS element, the RIS can be reconfigured to behave differently to suit various operating frequencies of the radio signals.

Reformulating reconfigurable intelligent surface (RIS) elements based on operation frequency

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment UE) may identify a plurality of channel state information (CSI) reference signal (RS) resource groups, wherein each CSI RS resource group, of the plurality of CSI RS resource groups, includes one or more CSI RS resources; identify a plurality of hypotheses; identify a plurality of hypothesis groups, wherein each hypothesis group, of the plurality of hypothesis groups, includes one or more hypotheses rom the plurality of hypotheses; and report, to one or more transmit receive points (TRPs) in a multi-TRP deployment and for the plurality of hypothesis groups, a corresponding plurality of CSIs, wherein each CSI, of the corresponding plurality of CSIs, corresponds to at least one hypothesis of a respective hypothesis group of the plurality of hypothesis groups. Numerous other aspects are provided.

Resource pair groups for channel state information in multi-transmit receive point deployments

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a UE may receive multiple CSI report configurations that include at least a first CSI report configuration and a second CSI report configuration that are associated with one or more CSI reference resources; determine a dependency between the first CSI report configuration and the second CSI report configuration; and calculate at least one of a first CSI for the first CSI report configuration or a second CSI for the second CSI report configuration based at least in part on an assumption of a joint transmission using the one or more CSI reference resources, wherein the assumption is based at least in part on the determination of the dependency. report at least one of the first CSI in a first CSI report or the second CSI in a second CSI report. Numerous other aspects are provided.

Correlation of multiple channel state information reports for multi-layer communication

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a sensing signal receiver may receive, from a sensing signal transmitter, sensing signals for passive object sensing in a plurality of beams; and transmit, to the sensing signal transmitter, feedback information that indicates an association of a set of beams, of the plurality of beams, for sensing signal transmission. Numerous other aspects are provided.

Beam feedback for passive sensing

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a medium access control layer message indicating a set of mappings between a set of pathloss reference signals and one of: a set of physical uplink shared channel identifiers, or a set of sounding reference signal identifiers; receive downlink control information activating a mapping of the set of mappings; and perform a pathloss measurement using a pathloss reference signal identified by the activated mapping. Numerous other aspects are provided.

Medium access control layer mapping for pathloss reference signal

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to transmit, to a base station via a reconfigurable surface at a first transmission occasion, a first reference signal associated with a first reflection matrix configuration used by the reconfigurable surface to reflect signals, the first reflection matrix configuration included within a set of reflection matrix configurations. The UE may then transmit, to the base station via the reconfigurable surface at a second transmission occasion, a second reference signal associated with a second reflection matrix configuration used by the reconfigurable surface to reflect signals, the second reflection matrix configuration included within the set of reflection matrix configurations. The may then communicate with the base station via the reconfigurable surface based on transmitting the first reference signal, the second reference signal, or both.

Techniques for successive tuning using a reconfigurable surface

Certain aspects of the present disclosure provide techniques for performing periodic and aperiodic CSI reporting for MIMO operations. According to certain aspects, operations for performing periodic and aperiodic CSI reporting for MIMO generally includes configuring a user equipment (UE) that is capable of MIMO with different parameters for periodic and aperiodic channel state information (CSI) reporting, wherein the different parameters indicate at least one of what resources to measure or what information to report, and receiving periodic and aperiodic CSI reporting from the UE according to the configuration.

Periodic and aperiodic channel state information (CSI) reporting for MIMO

Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for performing initial access procedures including transmitting or receiving synchronization signal blocks (SSBs) based on a capability of a user equipment (UE) to use reconfigurable intelligent surfaces (RISs). In some examples, a base station may transmit SSBs using two synchronization raster grids. For example, the base station may transmit SSBs on a first synchronization raster grid for UEs that do not support RISs and on a second synchronization raster grid for UEs that support RISs. In some examples, a base station may transmit different types of SSBs. For example, a base station may transmit a first type of SSB for UEs that do not support RISs and a second type of SSB for UEs that support RISs. A UE may search for and receive SSBs according to a capability of the UE.

Transmitting synchronization signal block via reconfigurable intelligent surfaces

Certain aspects of the present disclosure provide techniques for using subband precoding for uplink transmissions. In some cases, a UE may receive, from a network entity, information indicating one or more of sounding reference signal (SRS) ports selected by the network entity and associated linear combination coefficients, determine subband precoding based at least in part on the selected SRS ports and linear combination coefficient, and transmit a physical uplink shared channel (PUSCH) with the subband precoding.

Uplink subband precoding via sounding reference signals precoded by frequency domain bases

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

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may receive a sounding reference signal (SRS) from a first user equipment (UE). The base station may receive a cross-link interference (CLI) report from a second UE based at least in part on the SRS. The base station may determine a CLI from an uplink shared channel based at least in part on a power headroom report for the uplink shared channel received from the first UE and the CLI report received from the second UE. Numerous other aspects are provided.

Cross-link interference determination for an uplink shared channel

Growing community of inventors

San Diego, CA, United States of America

Yu Zhang