Qualcomm Incorporated

Juergen Cezanne

Junyi Li

Muhammad Nazmul Islam

Sundar Subramanian

Navid Abedini

Tao Luo

Bilal Sadiq

Vasanthan Raghavan

Ashwin Sampath

Tianyang Bai

Ozge Koymen

Karl Georg Hampel

Jianghong Luo

Raju Hormis

Jung Ho Ryu

Alexei Yurievitch Gorokhov

Joseph Binamira Soriaga

Krishna Kiran Mukkavilli

Joseph Patrick Burke

Sony Akkarakaran

Wooseok Nam

Raghu Narayan Challa

Sumeeth Nagaraja

Alexandros Manolakos

Xiao Feng Wang

Ruhua He

Tingfang Ji

Kiran Venugopal

Igor Gutman

Hong Cheng

Naga Bhushan

Abdelrahman Mohamed Ahmed Mohamed Ibrahim

Kobi Ravid

Pushkar Bajirao Kulkarni

Dai Lu

Kapil Gulati

Rajiv Laroia

Xinzhou Wu

Danlu Zhang

Mohammad Ali Tassoudji

Pavan Kumar Vitthaladevuni

Atul Maharshi

Peter S Gaal

Yan Zhou

Durga Prasad Malladi

Hung Dinh Ly

Linhai He

Makesh Pravin John Wilson

Hua Wang

Meilong Jiang

Yu-Chin Ou

Chinmay Shankar Vaze

Wanshi Chen

Wei Zeng

Jing Jiang

Yu Zhang

Saurabh R Tavildar

Yong Li

Jun Zhu

Mihir Vijay Laghate

Andrzej F Partyka

Shrinivas Kudekar

Arash Mirbagheri

Allen Minh-Triet Tran

Awlok Singh Josan

Vikram Reddy Anreddy

Xiaoxia Zhang

Jing X Sun

Muhammad Sayed Khairy Abdelghaffar

Arumugam Chendamarai Kannan

Shailesh Patil

Shay Landis

Heechoon Lee

Assaf Touboul

Renqiu Wang

Hwan Joon Kwon

Thomas J Richardson

Gokul Sridharan

Luca Blessent

Seyong Park

Zhifei Fan

Qiang Wu

Konstantinos Dimou

Ahmed Abdelaziz Ibrahim Abdelaziz Zewail

Prashanth Haridas Hande

Farhad Meshkati

Arnab Das

Saurabha Rangrao Tavildar

Aleksandar Jovicic

Guy Wolf

Sundeep Rangan

Udara Fernando

Pablo Alejandro Anigstein

Shrenik Patel

Ory Eger

Noam Zach

Pinar Sen

Robert Keith Douglas

Wenjun Li

Ori Shental

Certain aspects of the present disclosure provide techniques for a beam refinement procedure. According to certain aspects, a method for wireless communications by a receive node generally includes receiving, from a transmit node, a configuration indicating channel state information reference signal (CSI-RS) resources and an indication of at least one receive beam for the receive node to use for measuring CSI-RS transmitted on the CSI-RS resources and transmitting, to the transmit node, a report indicating a value generated using a function that combines measurements taken on the CSI-RS resources.

Bidirectional channel statistics-based beam refinement

Methods, systems, and devices for wireless communications are described. A transmitted may use a closed loop precoder for line-of-sight (LOS) multiple-input multiple-output (MIMO) communications that uses information such as distance feedback or LOS MIMO channel state feedback. A closed loop precoder may be associated with less overhead than a precoder based on full channel knowledge, such as an SVD precoder. A receiver may estimate a channel based on channel state information reference signals transmitted by the transmitter and calculate a spectral efficiency for one or more precoders of a set of precoders associated with the channel for a LOS MIMO mode. The receiver may send feedback to the transmitter that indicates a selected precoder of the set of LOS MIMO precoders based on the calculated spectral efficiencies. The transmitter may precode messages using the reported closed loop precoder.

Method and apparatus for codebook design for closed loop operation

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may generate an input signal including information for transmission over a wireless channel. The UE may perform a first waveform shaping stage on the input signal to increase an in-band emissions ratio and reduce a peak-to-average power ratio (PAPR) of the input signal. The UE may perform a second waveform shaping stage on the output of the first waveform shaping stage to reduce an adjacent channel leakage ratio of the output of the first waveform shaping stage. The UE may then transmit a signal over the wireless channel based on an output of the second waveform shaping stage.

Techniques for waveform compression

Methods, systems, and devices for wireless communications are described. When operating in a high-pathloss mode, wireless devices in a network may transmit or receive downlink control information (DCI) that schedules a transmission time interval (TTI) for a physical shared channel (such as a physical uplink shared channel (PUSCH) or a physical downlink shared channel (PDSCH)). A wireless device may determine one or more intervals that correspond to a periodic signal that collides with portions of the TTI. Based on the identified intervals, the wireless device may communicate over the physical shared channel during the TTI. In such cases, the TTI may overlap in time with the one or more intervals to allow communication of the periodic signal during the portions of the TTI. For instance, a periodic signal may be transmitted or received during each of the one or more intervals.

Beam management for high-pathloss mode operations

Methods, systems, and devices for wireless communications are described. A node (e.g., a base station or network entity) may identify a signal that provides an indication of a location of a contention free random access channel (CFRA) resource within a time region and an indication of a timing pattern for the CFRA resource, the timing pattern associated with a pattern of subsequent instances of the time region in which the CFRA resource is repeated, wherein the CFRA resource is not a fully overlapping resource with respect to a contention based random access (CBRA) resource. The node may convey the signal to one or more user equipment (UE) to indicate the location and the timing pattern.

Signaling to indicate locations of dedicated random access channel region in time domain

Methods, systems, and devices for wireless communications are described. Different periodicities may be dynamically selected when monitoring and transmitting signaling used for link management, where respective periodicities may be based on the quality of the link between devices. For instance, a first wireless device may use a first monitoring periodicity to monitor for signals transmitted from another wireless device. Upon determining that a link condition has changed (e.g., decreased or reached a threshold), the first wireless device may decrease its monitoring periodicity (and increase monitoring frequency) to detect signals transmitted by the other wireless device more frequently. In such cases, the other wireless device may likewise transmit its measurement signals more often (e.g., in accordance with a second periodicity) based on the link quality. The adjusted monitoring and transmission periodicities may provide additional occasions for the wireless device to detect signals from another device.

Synchronization signal periodicity adjustment

This disclosure provides systems, methods, and devices for wireless communication that support power headroom differential reporting for reference resource signals transmitted at different transmission power than other uplink transmissions. In a first aspect, a method of wireless communication includes determining a power headroom value, by a user equipment (UE), using a maximum configured transmission power and a transmission power configured for an uplink transmission at a configured modulation and coding scheme (MCS). The UE determines a reference resource signal power headroom value using the maximum configured transmission power and a reference resource signal transmission power configured for a reference resource signal transmission, calculates a reference resource power headroom differential between the power headroom value and the reference resource signal power headroom value, and transmits a report including the uplink transmission power headroom value and the reference resource power headroom differential. Other aspects and features are also claimed and described.

Power headroom differential reporting

Methods, systems, and devices for wireless communications are described. A wireless device (e.g., a user equipment and/or base station) may operate in a first mode in a wireless network over a radio frequency spectrum band. The wireless device may receive a signal indicating that a value of the radio frequency spectrum band has satisfied a threshold value. The wireless device may switch, based at least in part on the signal indicating that the value has satisfied the threshold value, from the first mode to a second mode for wireless communications in the wireless network, wherein a first length of a first synchronization signal block associated with the first mode is shorter than a second length of a second synchronization signal block associated with the second mode.

Support of high pathloss mode

Methods, systems, and devices for wireless communications are described. The described techniques enable a first wireless device (e.g., an integrated access and backhaul (IAB) node in an TAB system) or a network entity (e.g., a centralized unit (CU) in the TAB system) to select a set of wireless devices for communication. The first wireless device, the CU, or both may select the set of wireless devices for communication based on a pathloss mode of the first wireless device, whether an angular separation between a group of nodes (e.g., one or more of the set of wireless devices) is less than an angular separation threshold, or both. The first wireless device may communicate with the set of wireless devices with one or more communications beams. For example, the device may communicate with multiple wireless devices using a single communication beam if the angular separation between the multiple devices is relatively low.

Beam direction selection for high pathloss mode operations

Aspects relate to an array antenna and communication using the array antenna. In some examples, the array antenna includes a first array of antenna elements arranged according to a first circle and a second array of antenna elements arranged according to a second circle, where the first circle and the second circle are concentric circles. In some examples, the first array of antenna elements is arranged with an angular offset with respect to the second array of antenna elements. For example, a first radius associated with a first antenna element of the first array of antenna elements may be offset at an angle with respect to a second radius of a second antenna element of the second array of antenna elements.

Circular array antenna with angular offset

Methods, systems, and devices for wireless communications are described. A wireless device may configure one or more first sets of resources of a radio frequency spectrum band associated with a first pathloss mode, and may configure one or more second sets of resources associated with a second pathloss mode. Each set of resources may be configured with some transmission timing parameters and frame structure, such that a transmission time interval (TTI) associated with the first pathloss mode may be different from the TTI associated with the second pathloss mode. The wireless device may communicate with a second wireless device using the one or more first sets of resources based on identifying a pathloss value is below an identified pathloss threshold. Additionally, the wireless device may communicate with a third device using the one or more second sets of resources based on identifying a pathloss value satisfies the identified pathloss threshold.

High pathloss mode multiplexing

Methods, systems, and devices for wireless communication are described. A communication device, such as a base station or a user equipment (UE) may generate a beacon signal based on a nonuniform power spectral density configuration. The communication device may transmit control signaling indicating a nonuniform power spectral density profile associated with the beacon signal. The nonuniform power spectral density profile may indicate a respective power offset associated with the beacon signal for one or more subset of resource elements of a set of resource elements. The communication device may transmit the beacon signal. Additionally or alternatively, the communication device may receive control signaling indicating the nonuniform power spectral density profile associated with the beacon signal. Based on the nonuniform power spectral density profile, the communication device may receive the beacon signal.

Managing wireless communications for leaky-wave antennas

Certain aspects of the present disclosure provide techniques for multi-carrier scheduling and search space activation.

Multi-carrier scheduling and search space activation

Techniques are described herein for periodically transmitting a first set of signals (e.g., reference signals) during an on-period of a discontinuous reception (DRX) cycle rather than during an off-period of the DRX cycle. Such techniques may enable a user equipment (UE) operating in a DRX mode to conserve additional power during the DRX cycle. A periodicity for transmitting the first set of signals during the on-period may be determined. The periodicity may indicate that every one-in-N DRX cycles, the first set of signals are to be transmitted during the on-period. During other DRX cycles, the first set of signals may be transmitted during the off-period. When the first set of signals are transmitted during the on-period, the UE may refrain from activating certain components during the off-period, thereby conserving power.

Beam sweeping during an on-period of a DRX cycle

Methods, systems, and devices for wireless communications are described that provide for the management of different operation modes in wireless systems. For example, wireless device(s) may operate in a high pathloss operation mode or a normal pathloss operation mode based on the pathloss experienced between the transmitting and receiving devices. In some cases, a first wireless device may transmit a message to a second wireless device to configure a bandwidth part (BWP) for high pathloss mode communications. The message may be transmitted via control signaling and after receipt of the message, the second wireless device may enter a high pathloss mode for communications with the first wireless device (e.g., after a given time duration). Some parameters may be configurable (e.g., transmission duration, coding scheme) between high pathloss mode and normal pathloss mode, while other parameters may remain the same (e.g., processing time, switching time).

Communication configuration for high pathloss operations

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Ocean Township, NJ, United States of America

Juergen Cezanne