Qualcomm Incorporated

Interdigital Patent Holdings, Inc.

Huawei Technologies Co., Limited

Idac Holdings, Inc.

Huawei Technoloiges Co., Ltd.

Mahmoud Taherzadeh Boroujeni

Tao Luo

Juan Montojo

Junyi Li

Jelena Damnjanovic

Peter S Gaal

Iyab Issam Sakhnini

Sony Akkarakaran

Wooseok Nam

Xiaoxia Zhang

Yan Zhou

Jing X Sun

Hamed Pezeshki

Jung Ho Ryu

Shahrokh Nayeb Nazar

Arumugam Chendamarai Kannan

Kapil Gulati

Hung Dinh Ly

Wanshi Chen

Taesang Yoo

Oghenekome Oteri

Gokul Sridharan

Hong Cheng

Qiang Wu

Jingchao Bao

Linhai He

Alireza Bayesteh

Ling Ding

Hua Wang

Olufunmilola Omolade Awoniyi-Oteri

Peter Pui Lok Ang

Hwan Joon Kwon

Mohammadhadi Baligh

Seyed Mohsen Hosseinian

Ahmad Reza Hedayat

Frank La Sita

Tianyang Bai

Piyush Gupta

Xiaojie Wang

Ajay Gupta

Mostafa Khoshnevisan

Konstantinos Dimou

Yuchul Kim

Moon-il Lee

Jun Ma

Rui Yang

Liangping Ma

Hosein Nikopour

Afshin Haghighat

Lik Hang Silas Fong

Xiao Feng Wang

Ghyslain Pelletier

Erdem Bala

Vinod Viswanatha Menon

Jianglei Ma

Paul Marinier

Janet A Stern-Berkowitz

Xiaofei Wang

Anantharaman Balasubramanian

Hanqing Lou

Mihaela C Beluri

Ravikumar V Pragada

Wei Yang

Alphan Sahin

Hemant Saggar

Faris Alfarhan

Nagi Jayaraman Mahalingam

Loic Canonne-Velasquez

Mohamed Fouad Ahmed Marzban

Philip Aaron Sisk

Navid Abedini

Seyedkianoush Hosseini

Alberto Rico Alvarino

Srinivas Yerramalli

Alexei Yurievitch Gorokhov

Jing Jiang

Muhammad Nazmul Islam

Sudhir Kumar Baghel

Ozcan Ozturk

Ayan Sengupta

Vinay Chande

Ahmed Abdelaziz Ibrahim Abdelaziz Zewail

Hari Sankar

Mehmet Izzet Gurelli

Shanyu Zhou

Yitao Chen

Keyvan Zarifi

Tuong Duc Hoang

Morteza Soltani

Usa Vilaipornsawai

Kaidong Wang

Yicheng Lin

Sanghoon Kim

Pinar Sen

Eren Balevi

Krishna Chaitanya Mukkera

Amira Alloum

Shahrokh Mayeb Nazar

Certain aspects of the present disclosure provide techniques for peak to average power ratio (PAPR) reduction for orthogonal frequency division multiplexing (OFDM). An example method, performed at a transmitter, includes generating a plurality of orthogonal frequency division multiplexed (OFDM) symbols, based on a constellation associated with a modulation scheme, adjusting a phase of at least one of the OFDM symbols based on at least one parameter that depends on a non-integer multiple of a phase distance between two points on the constellation, generating a Discrete Fourier Transform spread OFDM (DFT-s-OFDM) waveform based on the OFDM symbols after the adjustment, and transmitting the DFT-s-OFDM waveform to a receiver.

Peak to average power ratio reduction for orthogonal frequency division multiplexing

A wireless transmit receive unit (WTRU) may be configured to transmit uplink control information such as Hybrid Automatic Retransmission Request (HARQ) Acknowledgement or Negative Acknowledgement (ACK/NACK) using a sequence. The HARQ ACK/NACK may comprise one bit or two bits of information, and the WTRU may use a cyclic shift of the sequence to transmit the HARQ ACK/NACK. The WTRU may use different cyclic shifts of the sequence to transmit different HARQ ACK/NACK values and the cyclic shifts may be separated from each other in a manner to facilitate the transmissions. The WTRU may be further configured to receive, from a physical downlink control channel (PDCCH), an indication of a resource block for transmitting the HARQ ACK/NACK.

Methods, systems, and apparatus for transmitting uplink control information

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may detect a beam failure event associated with the UE. The UE may detect a first condition of the UE. The UE may perform one or more actions associated with beam failure recovery based at least in part on a measure of similarity between the first condition of the UE and a second condition of the UE associated with a past beam failure event. Numerous other aspects are described.

Using beam failure similarity for beam failure recovery

Aspects of the present disclosure can be implemented in a method for wireless communication by a user equipment (UE). The method generally includes receiving dynamic signaling from a network entity of an indication to activate or update a set of phase tracking reference signals (PTRS) parameters, and processing PTRS for at least one of a physical uplink shared channel (PUSCH) or a physical downlink shared channel (PDSCH), in accordance with the indication.

Dynamic phase tracking reference signal (PTRS) activation

Aspects of the present disclosure allow a base station to simultaneously send SSBs to a UE and to associate different ROs or designated subsets of preambles with the simultaneously transmitted SSBs. The base station may configure a time or frequency offset for different ROs, or a number of preamble cyclic shifts associated with the SSBs. The base station then simultaneously sends a plurality of SSBs to the UE, where each of the SSBs is associated with a different beam, and where each of the SSBs is associated with a different RO or a designated subset of preambles. After the UE simultaneously obtains the SSBs from the base station, the UE may determine the offset for one of the different ROs, or the number of preamble cyclic shifts associated with one of the SSBs. The UE may then send a preamble to the base station in response to the determination.

Multiple simultaneous SSBs with SSB-specific RACH occasions or preamble subsets

Methods, systems, and devices for wireless communications are described. A user equipment (UE) generates multiple systematic bits for a message, where the systematic bits are nonuniformly distributed over a time period such that a first bit value has a first probability of occurrence during the time period and a second bit value has a second probability that is greater than the first probability of the occurrence. The UE modulates the systematic bits according to an asymmetric modulation rule such that the first bit value corresponds to a first constellation point on a constellation graph and the second bit value corresponds to a second constellation point that is relatively closer to a center of the constellation graph than the first constellation point based on the second probability being greater than the first probability. The UE transmits the message including systematic bits modulated according to the asymmetric modulation rule.

Communicating nonuniform sources using systematic codes

Methods, systems, and devices for wireless communications are described. The method may include a user equipment (UE) transmitting a first signal using a first waveform type. After transmitting the first signal using the first waveform type, the UE may identify a trigger event for waveform type switching by the UE and select a waveform type from among a set of waveform types based on identifying the trigger event. The UE may then transmit a second signal using the selected waveform type.

Event-triggered waveform type selection

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of a loss of coherence associated with the UE. The UE may perform at least one adjustment to a transmission parameter or a reception parameter based at least in part on the indication of the loss of coherence. For example, the adjustment to the transmission parameter may include adjusting a transmit power, adjusting a transmit frequency, adapting a transmission time, changing an antenna port, or a combination thereof. Additionally, or alternatively, the adjustment to the reception parameter may include refraining from joint channel estimation across a plurality of slots, adjusting a downscaling parameter or a frequency tuning associated with at least one reception antenna, refraining from blind decoding, or a combination thereof. Numerous other aspects are described.

Indicating a loss of coherence in a wireless network

Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for reporting content processing times to a base station to allow the base station to efficiently schedule bi-directional communications one or more UEs. A content processing time may correspond to the time taken by a UE to process one or more downlink signals received in one or more downlink transmissions. In some examples, the UE may report a content processing time for each downlink transmission. In some examples, the UE may report one or more content processing times for multiple downlink transmissions. The base station may use the content processing times to configure an appropriate gap between downlink and uplink transmissions such that the UE may have sufficient time to process downlink signals before transmitting one or more uplink transmissions in response to the one or more downlink transmissions.

UE feedback of content processing time for bi-directional traffic

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, in a downlink control information, a bit map identifying a plurality of feedback indicators for a plurality of uplink transmissions, wherein the plurality of feedback indicators includes more than one acknowledgment and/or negative acknowledgment; and retransmit one or more of the plurality of uplink transmissions based at least in part on receiving the bit map identifying the plurality of feedback indicators. Numerous other aspects are provided.

Consolidated feedback indication and feedback transmission

Certain aspects of the present disclosure provide techniques for a multi-slot sounding reference signal (SRS) resource. A method that may be performed by a user equipment (UE) includes receiving a configuration of an SRS resource, wherein the SRS resource comprises a set of symbols for transmission of SRS across a plurality of slots, and transmitting the SRS using the set of symbols across the plurality of slots to a base station.

Multi-slot sounding reference signal (SRS) resource

Some wireless communications systems modulate signals for transmission via a channel. Probabilistic shaping may utilize non-uniformly distributed modulation constellations to increase spectral efficiency. In some cases, wireless fading may occur in a multiple-input and multiple-output (MIMO) channel, which may cause a loss of the shaping gain from probabilistic shaping. Some examples of approaches to linear MIMO demodulation for probabilistic shaping using auxiliary dimensions are provided. A wireless device may receive information indicating a non-uniform probabilistic distribution of a modulation constellation for a MIMO signal. One or more symbols of the MIMO signal may be transmitted or received via a channel. The wireless device may demodulate the symbol based at least in part on a transformation of the modulation constellation to a subspace using dimensions associated with the non-uniform probabilistic distribution and a point of the transformed modulation constellation nearest to a projected symbol in the subspace.

Multiple-input and multiple-output demodulation for non-uniform modulation constellations

A configuration to allow for the transmission of system information on different beams, where different transmission parameters may be utilized for different beams. The apparatus transmits system information on a first beam. The apparatus transmits the system information on a second beam. The system information is transmitted using different parameters for the first beam and the second beam or comprises different system information content for the first beam and the second beam.

Beam specific RMSI transmission

Some aspects provide a method for wireless communication by a first wireless device. The method generally includes transmitting control information regarding at least one of scheduling or configuration of a channel state information (CSI) report to be transmitted by the first wireless device. The method generally includes generating the CSI report based on one or more CSI reference signals (CSI-RSs) received by the first wireless device. The method generally includes and transmitting the CSI report in accordance with the control information.

CSI report setting by the CSI-transmitting user equipment

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a status of a repetition procedure associated with a radio resource control (RRC) connection request message of a four-step random access channel (RACH) procedure. The UE may invoke an activity state of an RRC connection setup message monitoring procedure based at least in part on the status of the repetition procedure. Numerous other aspects are described.

Invoking an activity state of a radio resource control connection setup message monitoring procedure

Growing community of inventors

San Diego, CA, United States of America

Mahmoud Taherzadeh Boroujeni