Qualcomm Incorporated

Mohamed Fouad Ahmed Marzban

Tao Luo

Wooseok Nam

Taesang Yoo

Arumugam Chendamarai Kannan

Xiaoxia Zhang

Ahmed Abdelaziz Ibrahim Abdelaziz Zewail

Qingjiang Tian

Zhifei Fan

Jing X Sun

Hemant Saggar

Mahmoud Taherzadeh Boroujeni

Hamed Pezeshki

Vinay Chande

Gauravkumar Shah

An apparatus for wireless communication at a UE is provided. The apparatus is configured to receive a configuration to report interference measurement information indicating interference measurements for each interference measurement resource of a set of interference measurement resources and Rx beam information used by the UE for performing interference measurements on each interference measurement resource of the set of interference measurement resources. The apparatus is configured to receive a set of interference measurement reference signals on the set of interference measurement resources, and to measure interference on each interference measurement resource of the set of interference measurement resources to obtain the interference measurement information. Each interference measurement is through one Rx beam of a set of Rx beams. The apparatus is configured to transmit, in response to the received set of interference reference signals on the set of interference measurement resources, the interference measurement information, and corresponding Rx beam information.

Interference data collection with beam information for ML-based interference prediction

Certain aspects of the present disclosure provide a method for wireless communications at a first network entity, comprising: outputting, to a second network entity, a request for an evaluation of suitability of at least one user equipment (UE) for data collection for at least one of machine learning (ML) model training or scenario evaluation; and obtaining, in response to the request, results of the evaluation.

User equipment trust re-evaluation

Methods, systems, and devices for wireless communication are described. Some wireless communications systems may support interference reporting as a mixture distribution model. A user equipment (UE) may receive signals via one or more interference measurement resources. The UE may obtain interference measurements for a wireless communication channel based on the signals. The UE may transmit an interference report to a network entity that indicates a respective set of one or more distribution parameters for each probability distribution of a set of multiple probability distributions of the mixture distribution. Each probability distribution may correspond to a respective component of the mixture distribution. The network entity may schedule wireless communications with the UE based on the interference report and the mixture distribution.

Interference reporting for wireless communications based on mixture distributions

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit capability information indicating a physical downlink control channel (PDCCH) monitoring capability, wherein the PDCCH monitoring capability indicates a minimum length for a group of slots and a maximum number of consecutive slots including at least one search space within the group of slots. The UE may receive a search space set configuration associated with a plurality of search spaces, wherein the search space set configuration is based at least in part on a slot group length that is greater than or equal to the minimum length. The UE may monitor for control information based at least in part on the search space set configuration. Numerous other aspects are described.

Flexible slot group for multiple slot control channel monitoring

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network node may receive a signal associated with a set of resources. The first network node may determine, using a multi-head machine learning model having a body module and a plurality of head modules, a plurality of estimated parameter values of a plurality of parameters corresponding to the set of resources, wherein the body module extracts a set of common features based at least in part on a set of model inputs corresponding to the set of resources, and wherein the plurality of head modules generate the plurality of estimated parameter values based at least in part on the set of common features. The first network node may perform a wireless communication operation based at least in part on the plurality of estimated parameter values. Numerous other aspects are described.

Multi-head machine learning model for estimating a plurality of parameter values

Aspects presented herein may improve interference measurements for dynamic and/or bursty transmissions. In one aspect, a UE receives a configuration of a null tone pattern from a network node, where the configuration of the null tone pattern includes a set of null tones associated with a set of resources, where at least one null tone in the set of null tones corresponds to at least one resource in the set of resources. The UE measures interference corresponding to the set of resources associated with the null tone pattern. The UE transmits at least one of a first indication of an adjusted null tone pattern based on the interference corresponding to the set of resources or a second indication of the interference corresponding to the set of resources, where at least one of the first indication or the second indication is transmitted to the network node.

Null tones adaptation using reinforcement learning

Certain aspects of the present disclosure provide techniques for frequency tracking and timing tracking using wideband reference signals (RSs). A method that may be performed by a user equipment (UE) includes monitoring for a wideband RS from a network entity when one or more conditions are met, the wideband RS occupying a wider band of frequency resources than a tracking reference signal (TRS) transmitted by the network entity; and performing at least one of frequency tracking or timing tracking based on the monitoring.

Frequency tracking and timing tracking using wideband reference signal(s)

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit compressed interference information to a network entity. The UE may measure interference at the UE over a set of interference measurement resources. The UE may determine an interference distribution over the set of resources. The UE may encode the interference distribution using a compressions scheme which may reduce a payload or size of the interference distribution. The compression scheme may include compressing the distribution of the interference. Encoding the interference information may include generating a mean vector and a covariance matrix representative of the distribution of the interference measured over the given set of interference measurement resources. The UE may transmit the encoded interference information, and the network entity may decode the encoded interference information. The network entity may schedule communications with the UE based on the interference information.

Interference distribution compression and reconstruction

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network entity may generate cell information about a first cell provided at least in part by the first network entity, the cell information associated with one or more potential sources of interference at a second cell provided at least in part by a second network entity, the one or more potential sources of interference being associated with the first cell. The first network entity may communicate the cell information to the second network entity. Numerous other aspects are described.

Inter-base station coordination for interference management

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine an amount of time between uplink allocations that is needed for performing frequency retuning during operation at a subcarrier spacing (SCS). The UE may perform frequency retuning in association with hopping from a first set of frequency resources, associated with transmitting a first uplink transmission, to a second set of frequency resources, associated with transmitting a second uplink transmission, during operation at the SCS, wherein the frequency retuning is performed during a set of consecutive unallocated resources determined based at least in part on the amount of time between uplink allocations that is needed for performing frequency retuning. Numerous other aspects are described.

Uplink frequency hopping and scheduling

Certain aspects of the present disclosure provide techniques for wireless communications by a user equipment (UE), including receiving, from a network entity, an indication to report at least one of a channel quality indicator (CQI) or a pre-coding matrix indicator (PMI) for one or more future communications resources and sending, to the network entity, a channel state feedback (CSF) report indicating at least one of a predicted CQI or a predicted PMI for the one or more future communications resources prior to the one or more future communications resources occurring in time.

Channel estimate or interference reporting in a wireless communications network

Apparatus, methods, and computer-readable media for facilitating reference signal multiplexing with downlink data are disclosed herein. An example method for wireless communication at a user equipment (UE) includes receiving, from a base station, a reference signal configuration associated with at least one of a tracking reference signal (TRS) and a channel state information reference signal (CSI-RS), the reference signal configuration comprising a symbol level rate matching configuration, a precoder configuration, or a guard tone configuration. The example method also includes receiving, from the base station, a transmission comprising at least a reference signal and data based on the reference signal configuration.

Reference signal multiplexing with downlink data

Certain aspects of the present disclosure provide techniques for wireless communications by a user equipment (UE), including receiving, from a network entity, one or more parameters for performing interference prediction at the UE; predicting, for each of at least one communications resource, a predicted interference at the UE, wherein the predicted interference comprises a plurality of probability values, each probability value of the plurality of probability values being associated with a different class of a plurality of classes, each class of the plurality of classes associated with a corresponding range of interference power; and sending, to the network entity, a report based on the predicted interference.

Soft interference prediction in a wireless communications system

Certain aspects of the present disclosure provide techniques for receiving an indication of variable tracking reference signal (TRS). A method that may be performed by a user equipment (UE) includes determining a configuration indicating a value for a variable tracking reference signal (TRS) density, monitoring for TRSs from a base station (BS) according to the indicated value for the variable TRS density, and performing at least one of frequency tracking or timing tracking based on the monitoring.

Variable tracking reference signal density

Aspects of the present disclosure include methods, apparatuses, and computer readable media for receiving interference information relating to at least one of a scheduling granularity, a subcarrier spacing, a scheduler type, resource utilization, a number of active UEs, a number of active beams, an elevation and an azimuth angle of each of the number of active beams, a synchronization signal block index, or a semi-persistent scheduling configuration associated with at least one neighbor base station (BS), estimating or predicting, based on the interference information received, an interference power profile caused by the at least one neighbor BS, receiving at least one of data information or control information, and decoding the at least one of the data information or the control information based on the interference power profile.

Growing community of inventors

San Diego, CA, United States of America

Mohamed Fouad Ahmed Marzban