Qualcomm Incorporated

Andrei Dragos Radulescu

Tamer Adel Kadous

Jing X Sun

Xiaoxia Zhang

Aleksandar Damnjanovic

Tao Luo

Srinivas Yerramalli

Damanjit Singh

Mehmet Yavuz

Arumugam Chendamarai Kannan

Farhad Meshkati

Sumeeth Nagaraja

Ahmed Kamel Sadek

Chirag Sureshbhai Patel

Rajat Prakash

Ozcan Ozturk

Chirag Dipak Patel

Yongbin Wei

Jen Mei Chen

Nachiappan Valliappan

Sanjiv Nanda

Peerapol Tinnakornsrisuphap

Peter Hans Rauber

Peter S Gaal

Vinay Chande

Juan Montojo

Yan Zhou

Gavin Bernard Horn

Taesang Yoo

Seyed Ali Akbar Fakoorian

Stephen William Edge

Sven Fischer

Sharad Deepak Sambhwani

Rohit Kapoor

Bapineedu Chowdary Gummadi

Christophe Chevallier

Hem Agnihotri

Venkata A Naidu Babbadi

Makesh Pravin John Wilson

Chih-Hao Liu

Arnaud Meylan

Jay Kumar Sundararajan

Samir Salib Soliman

Aziz Gholmieh

Zhifei Fan

Soumya Das

Chengjin Zhang

Cong Shen

Mario Mark Scipione

Lijun Zhao

Kapil Bhattad

Ravi Palanki

Parag Arun Agashe

Siddhartha Mallik

Olufunmilola Omolade Awoniyi-Oteri

Osok Song

Gerardo Giaretta

Rahul Malik

Dino Flore

Junyi Li

Sony Akkarakaran

Haitong Sun

Mostafa Khoshnevisan

Jelena Damnjanovic

Alexei Yurievitch Gorokhov

Xiao Feng Wang

Peter Pui Lok Ang

Karl Georg Hampel

Linhai He

Aamod Dinkar Khandekar

Tao Chen

Miguel Griot

Fatih Ulupinar

Peng Cheng

Ashok Mantravadi

Keiichi Kubota

Danlu Zhang

Yeliz Tokgoz

Ravi Agarwal

Bibhu P Mohanty

Ananta Narayanan Thyagarajan

Qingjiang Tian

Shengbo Chen

Pravjyot Singh Deogun

Francesco Pica

Lior Uziel

Akula Aneesh Reddy

Sanaz Barghi

Vinod Viswanatha Menon

Mohammad Naghshvar

Manu Sharma

Sanjay Kamath

Daehak Kim

Damanji Singh

Rashmin Ranjitsinh Anjaria

Yaniv Elgarisi

Certain aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for prioritized signaling via a functional application programming interface (FAPI). A method for conveying uplink (UL) payload may include receiving, at a physical (PHY) layer, a UL payload from one or more user equipments (UEs) and delivering different segments associated with the UL payload, to a medium access control (MAC) layer, in different messages via a functional application platform interface (FAPI). According to certain aspects, the different segments may carry UL payload with different priorities, and segments with higher priority UL payload may be delivered, to the MAC layer, prior to segments with lower priority UL payload.

Prioritized signaling via functional application programming interface (FAPI)

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may provide, to a distributed unit (DU) of the base station, an indication of one or more candidate physical entity (PHY) profiles. The base station may receive, from the DU, an indication of a selected PHY profile, of the one or more candidate PHY profiles, to use for communication with a device, such as a user equipment. Numerous other aspects are described.

Physical entity profiles of a radio unit

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a bandwidth part (BWP) to switch to after identifying consistent uplink listen-before-talk (LBT) failures on a first BWP based on parameters indicated by a base station. For example, the base station may transmit a switching parameter to the UE that the UE then uses to switch to a second BWP based on identifying the consistent uplink LBT failures on the first BWP. Subsequently, after selecting the second BWP, the UE may attempt to use the second BWP for uplink transmissions (e.g., after performing a random access procedure). Additionally, the UE may indicate the consistent uplink LBT failures to a base station associated with the failed BWP based on a type of cell that is using that failed BWP.

Uplink listen-before-talk failure recovery

Methods, systems, and devices for wireless communications are described in which wireless nodes may use licensed shared radio frequency spectrum band for communications and one or more neighboring networks may use a same licensed shared radio frequency spectrum band. A second network of the one or more neighboring networks may have priority of use of the licensed shared radio frequency spectrum band within a particular geographic area. Disclosed techniques provide that nodes of each network may indicate an identification of the network, a network priority, or both, in over-the-air signaling. Wireless nodes may determine if another neighboring network is present based on the over-the-air signaling, may determine whether the other network has a higher priority, and may adjust one or more transmissions in the event that a higher priority network is identified, such as through reducing transmission power.

Interference coordination in licensed shared radio frequency spectrum

Techniques providing opportunistic frequency switching for frame based equipment (FBE), such as may be configured to minimize opportunistic frequency switching delay in FBE new radio (NR) unlicensed (NR-U) networks and/or to provide frequency diversity FBE access based on offset sequences of medium sensing occasions for the carrier frequencies are disclosed. Within the FBE mode network, a base station may configure a pattern of sensing locations in each frame for each frequency transmission unit of the plurality of frequency transmission units, wherein an inter-unit delay of sensing locations between a first frequency transmission unit and a next adjacent frequency transmission unit and between a last frequency transmission unit and the first frequency transmission unit is a fixed duration. Opportunistic frequency switching of embodiments may utilize the medium sensing locations for opportunistically switching between a sequence of the frequency transmission units for implementing frequency diversity FBE access.

Opportunistic frequency switching for frame based equipment

This disclosure provides systems, methods, and apparatuses for wireless communication. A user equipment (UE) may acquire a triggering synchronization signal block (SSB), which enables the UE to monitor for a floating Type-2 physical downlink control channel (PDCCH) and to determine a subset of paging occasions (POs) to monitor. Or, the UE may monitor for a fixed Type-2 PDCCH, where the UE does not require a triggering signal to monitors POs. In another aspect, the UE may monitor for a paging transmission during a monitoring period. The UE may determine the monitoring period based on received signaling. The UE may receive the signaling, during the monitoring period, indicating that the monitoring period is to be ended before a scheduled end of the monitoring period. In this way, the UE may support a continuity requirement associated with downlink reference signaling (DRS) and may support reception of paging in a shared channel.

Paging opportunity monitoring

Methods, systems, and devices for wireless communications are described. A transmitter may include an interference avoidance preamble in a wireless transmission. The interference avoidance preamble may identify resources for transmitting an interference avoidance request associated with the wireless transmission. A receiver may experience interference between the wireless transmission and another wireless transmission, and the receiver may transmit the interference avoidance request using the resources identified in the interference avoidance preamble. The transmitter may receive the interference avoidance request and, in response, may enable an interference avoidance mechanism, for example, a listen before talk (LBT) procedure, a frequency-division multiplexing (FDM) scheme, a time-division multiplexing (TDM) scheme, a spatial multiplexing scheme, or a combination.

Listen after talk procedure

A discovery measurement timing configuration (DMTC) window reservation signal is disclosed for new radio (NR) shared spectrum (NR-SS) networks. The DMTC window is defined providing a reserved location for transmission of essential control signaling and potentially high priority traffic that may be transmitted in a prioritized manner. Access within the DMTC window may be provided with a clear channel assessment (CCA) exempt transmission (CET) option or a non-CET option. When the CET option is used, the reservation duration and period may be conveyed through the channel reservation signal. User equipments (UEs) that detect the reservation signal may re-transmit with added offset to inform neighboring base station that may not be within range of the serving base station. Base station that receive either the transmitted or re-transmitted reservation signal will refrain from communications that may interfere with the reception at the UEs.

DMTC window reservation signal in NR shared spectrum

Methods, systems, and devices for wireless communications are described. A first device may cooperate with a second device to form a virtual device configured to communicate with a radio access network. The virtual device may appear as a single device from the perspective of the radio access network. Subsequently, a third device may be identified for replacing the second device within the virtual device. Based on the third device being identified, procedures for handing over communications from the second device to the third device may be executed. The procedures may include a beam management procedure, a random-access procedure, a mobility management procedure, or any combination thereof.

Cooperative user equipment switching

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station serving the UE in a first network, a power control configuration and a reference signal measurement configuration. The UE may receive, based at least in part on the reference signal measurement configuration, a reference signal from at least one wireless device of a second network. The UE may determine, based at least in part on the power control configuration and the received reference signal, an interference level for the second network introduced by the first network. The UE may adjust a transmission power limit for the UE based at least in part on the determined interference level and the power control configuration. The UE may transmit signals to the base station according to the adjusted transmission power limit.

Enhanced ultra-reliable/low-latency communications over-the-air mechanism for shared spectrum

Wireless communications systems and methods related to on-demand cell coverage extension for broadcast signals are provided. A first wireless communication device communicates, with a second wireless communication device, a first extended cell coverage request. The first wireless communication device communicates, with the second wireless communication device, a first broadcast communication signal in an extended cell coverage mode in response to the first extended cell coverage request. The first broadcast communication signal includes a system information block repeated in at least one of a time domain or a frequency domain.

On-demand coverage extended broadcast signal

Disclosed are techniques for determining a distance (or range) between a first wireless entity and a second wireless entity. In an aspect, the first wireless entity transmits a first positioning reference signaling (PRS) signal to the second wireless entity at a first time, where the first PRS signal is received by the second wireless entity at a second time, and receives a second PRS signal from the second wireless entity at a third time, where the second PRS signal is transmitted by the second wireless entity at a fourth time. The first wireless entity enables the distance to be determined by a location computing entity, for example, by a location server, based on the first, second, third, and fourth times. The first wireless entity may be a mobile device or a base station and the second wireless entity may be the other of the mobile device or base station.

Terrestrial wireless positioning in licensed and unlicensed frequency bands

Generally, the described techniques provide for a base station transmitting an indication of a set of one or more available channels to a user equipment (UE). The base station may transmit to the UE a first downlink burst using a first channel and a first frame period. In some cases, the base station may detect interference associated with the first downlink burst, for example, by performing a listen-before-talk (LBT) procedure or through an interference management resources (IMR) procedure in which the base station transmits reference signal signals to the UE that the UE may use to return a report on measured interference. If the base station detects interference, the base station may transmit to the UE an instruction to switch to a second channel and a second frame period, where the second channel may be selected from the set of one or more available channels.

Interference detection, signaling, and mitigation techniques for low latency transmissions

Methods, systems, and devices for wireless communications are described. A user equipment (UE) and base station may communicate in on a wireless channel of an unlicensed radio frequency spectrum band. The base station may transmit synchronization signal blocks (SSBs) in a discovery reference signal (DRS) slot. The base station may multiplex a channel state information (CSI) reference signal (CSI-RS). The base station may multiplex an aperiodic CSI-RS or a periodic CSI-RS with the SSBs in the DRS slot. For an aperiodic CSI-RS, the base station may separately trigger the CSI-RS measurement and CSI-RS reporting. For periodic CSI-RS, the base station may transmit an indication of whether the periodic CSI-RS is present.

Channel state information reference signal multiplexing with synchronization signal blocks

Growing community of inventors

San Diego, CA, United States of America

Andrei Dragos Radulescu