Qualcomm Incorporated

Gilat Satellite Networks Ltd.

Michael Levitsky

Assaf Touboul

Shay Landis

Daniel Paz

Gideon Shlomo Kutz

Idan Michael Horn

Amit Bar-Or Tillinger

Ran Berliner

Guy Wolf

Ronen Shaked

Jacob Pick

Alexander Vladimir Sverdlov

Muhammad Sayed Khairy Abdelghaffar

Peer Berger

Lior Uziel

Igor Gutman

Ory Eger

Yehonatan Dallal

Haim Mendel Weissman

Sharon Levy

David Yunusov

Noam Zach

Yaniv Eistein

Hung Dinh Ly

Raghu Narayan Challa

Ruhua He

Cheol Hee Park

Tal Oved

Elad Meir

Tom Barak

Gokul Sridharan

Ralph Akram Gholmieh

Chu-Hsiang Huang

Shmuel Vagner

Peter S Gaal

Wanshi Chen

Alexei Yurievitch Gorokhov

Parisa Cheraghi

Moshe Ben-Ari

Roman Budilovsky

Meir Tsadik

Albert Yosher

Shlomit Shaked

Ori Auslender

Kapil Gulati

Mostafa Khoshnevisan

Muhammad Nazmul Islam

Shailesh Patil

Heechoon Lee

Shuanshuan Wu

Oded Bialer

Hongbo Yan

Arthur Gubeskys

Junsheng Han

Awlok Singh Josan

Uzi Ram

Ambarish Tripathi

Guy Levitas

Doron Baruch

Ran Iron

In Hyuck Yeo

Jungsik Park

Eliyahu Arbiv

Lev Zavurov

Methods, systems, and devices for wireless communications are described. For example, a transmitting device, such as a user equipment (UE) or network entity, may apply a pre-equalization operation and a normalization operation prior to transmitting a signal with an intra-symbol duty cycle. A receiving device (e.g., a UE or network entity) may receive the pre-equalized signal with a relatively low demodulation complexity based on the transmitting device pre-equalizing the signal. Additionally, or alternatively, the transmitting device may transmit an indication of the duty cycle to the receiving device in addition to the signal. The receiving device may divide the signal into streams and process the streams based on the indication of the duty cycle. Splitting the signal into streams and processing the streams to estimate symbols of the signal may support a relatively low demodulator complexity at the receiving device.

High performance low power link for ultra-wideband

Methods, systems, and devices for wireless communications are described. In some examples, the first wireless device may transmit, to a second wireless device, a control message indicating a set of pre-equalization transmission schemes supported by the first wireless device for receipt of messaging pre-equalized by the second wireless device. The first wireless device may transmit a measurement report that indicates a measurement of a wireless channel between the first wireless device and the second wireless device, where the measurement may be a signal-to-interference and noise (SINR) measurement. The first wireless device may receive a control signal indicative of a first pre-equalization transmission scheme to be used by the second wireless device for pre-equalization based at least in part on the set of pre-equalization transmission schemes and the measurement. The first wireless device may receive, via the wireless channel, a downlink message pre-equalized in accordance with the first pre-equalization transmission scheme.

Techniques for dynamic pre-equalization switching

A method of wireless communication includes transmitting, by a wireless communication device, a first Synchronization Signal Block (SSB) transmission during a first slot. The method further includes transmitting, by the wireless communication device, at least a second SSB transmission during the first slot, the second and all other optional SSB transmissions on the first slot carry the same data as the first SSB transmission. The SSB transmissions are transmitted using spatially separated beams. Other aspects and features are also claimed and described.

Synchronization signal block (SSB) spatial overloading

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

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may support synchronization signal block (SSB) coverage extension for a sub-terahertz (sub-THz) band. The UE may monitor for multiple primary synchronization signals (PSSs) in a first instance of an SSB, a number of PSSs determined by the base station based on a periodicity of the SSB. The UE may combine the PSSs and determine a frequency offset for the SSB. The UE may monitor for additional instances of the SSB in accordance with the frequency offset. In some examples, the UE may monitor for one or more secondary synchronization signals (SSSs) in the first and additional instances of the SSB and combine the SSSs. In addition, the UE may monitor for a physical broadcast channel (PBCH) in the first and additional instances of the SSB, and decode the PBCH using log-likelihood ratio (LLR) combining.

Synchronization signal block coverage extension for a sub-terahertz band

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 demodulation reference signal (DMRS) configuration indicating an intra-slot DMRS pattern. The UE may receive, from the network entity, an indication of an inter-slot DMRS pattern. The UE may communicate, with the network entity, a message that is associated with a time domain resource allocation that includes multiple slots, the message including one or more DMRSs in accordance with the intra-slot DMRS pattern and the inter-slot DMRS pattern. Numerous other aspects are provided.

Inter-slot demodulation reference signal patterns

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may obtain synchronization with a primary cell of a wireless network. The wireless communication device may receive an indication to activate a secondary cell of the wireless network. The wireless communication device may receive a reference signal (RS) of the secondary cell. The wireless communication device may obtain synchronization with the secondary cell based at least in part on an offset between the RS of the secondary cell and a reference time of the primary cell, the reference time based at least in part on the synchronization with the primary cell. The wireless communication device may communicate via the secondary cell based at least in part on the synchronization with the secondary cell. Numerous other aspects are described.

Secondary cell synchronization

Certain aspects of the present disclosure provide techniques for reporting channel state information per user equipment-supported demodulator. The techniques may include a method of wireless communication by a user equipment (UE), the method involving generating channel state information (CSI) for a plurality of demodulator types supported by the UE, and transmitting, to a network entity, one or more reports, each report including CSI for at least one of the demodulator types.

Reporting channel state information per user equipment-supported demodulator

Certain aspects of the present disclosure provide techniques for network assisted selection of UE antenna ports for uplink transmissions. A method for wireless communication by a user equipment (UE) includes transmitting, to a network entity, a plurality of sounding reference signals over a plurality of UE antenna ports. The method further includes receiving, from the network entity, an indication of one or more antenna port indexes associated with one or more preferred antenna ports for uplink transmissions, and transmitting UE uplink transmissions to the network entity using one or more selected antenna ports of the one or more indicated preferred antenna ports.

Network assisted uplink transmission antenna ports selection

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit an indication of a multi-level coding (MLC) capability for uplink transmissions. The UE may receive a configuration of a selected MLC scheme associated with an uplink transmission, wherein the configuration of the selected MLC scheme is based at least in part on the indication of the MLC capability for the uplink transmissions. Numerous other aspects are described.

Multi-level coding for uplink transmissions

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit one or more messages that indicate a capability of the UE to support the reception of demodulation reference signals (DMRS) and time drift reference signals (TDRS) according to one or more signaling patterns configured by the network. The UE may then receive one or more control messages that indicate a first signaling pattern for one or more DMRSs and a second signaling pattern for one or more TDRSs, where the first signaling pattern corresponds to or is based on the second signaling pattern. The UE may receive a downlink shared channel multiplexed with the one or more DMRSs according to the first signaling pattern and may receive the downlink shared channel multiplexed with the one or more TDRSs according to the second signaling pattern.

Signaling patterns for time drift reference signals

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a sounding reference signal (SRS) configuration for SRS resources included an SRS resource set. The SRS configuration includes one or more first time domain parameters for the SRS resources. The UE may receive a dynamic indication of one or more second time domain parameters for the SRS resources. At least a subset of the one or more second time domain parameters are modified from the one or more first time domain parameters included in the SRS configuration. The UE may transmit, based at least in part on the one or more second time domain parameters, an SRS using the SRS resources. Numerous other aspects are described.

Techniques for dynamic adaptation of sounding reference signal time domain parameters

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may transmit a request, for an uplink transmission or a downlink transmission, for amplitude modulated phase tracking reference signals; and communicate the uplink transmission or the downlink transmission based at least in part on the request. Numerous other aspects are provided.

Amplitude modulated phase tracking reference signals

Various aspects of the present disclosure generally relate to wireless communication. Some aspects more specifically relate to discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM) waveform pre-equalization for MIMO communications. A receiver device, such as an extended reality (XR) device, may be configured to offload a portion of data processing to a companion device, such as a user equipment (UE). In some aspects, the UE may generate a DFT-S-OFDM waveform and may apply a pre-equalization to the DFT-S-OFDM waveform. Applying the pre-equalization to the DFT-S-OFDM waveform may include applying a minimum mean square error (MMSE) pre-equalization to the DFT-S-OFDM waveform. The receiver device may receive the pre-equalized DFT-S-OFDM waveform from the UE and may process the pre-equalized DFT-S-OFDM waveform. For example, the receiver device may decode the pre-equalized DFT-S-OFDM waveform without performing fast Fourier transform (FFT) or inverse discrete Fourier transform (IDFT) operations.

Discrete Fourier transform spread orthogonal frequency division multiplexing waveform pre-equalization

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive one or more reference signals associated with a downlink communication. The UE may transmit an indication of a preferred demodulation reference signal (DMRS) configuration to be used for the downlink communication, the preferred DMRS configuration based at least in part on the one or more reference signals and a transmission mode associated with the preferred DMRS configuration. Numerous other aspects are described.

Transmission mode-based indications of preferred configurations of demodulation reference signals

Growing community of inventors

Rehovot, Israel

Michael Levitsky