Qualcomm Incorporated

Virewirx, Inc.

Other

Xcom Labs, Inc.

International Business Machines Corporation

Jing Jiang

Tingfang Ji

Joseph Binamira Soriaga

Wanshi Chen

Krishna Kiran Mukkavilli

John Edward Smee

Peter S Gaal

Gabi Sarkis

Seyedkianoush Hosseini

Naga Bhushan

Yang Yang

Hao Xu

Wei Jennifer Yang

Chih-Ping Li

Peter Pui Lok Ang

Alexandros Manolakos

Jing X Sun

Changlong Xu

Tao Luo

Chong Li

Wei Zeng

Yi Huang

Jay Kumar Sundararajan

June Namgoong

Hari Sankar

Renqiu Wang

Jamie Menjay Lin

Alexei Yurievitch Gorokhov

Heechoon Lee

Seyong Park

Chao Wei

Linhai He

Wei Yang

Ying Wang

Jian Li

Kai Chen

Junyi Li

Liangming Wu

Jilei Hou

Thomas J Richardson

Hung Dinh Ly

Jing Lei

Raghuraman Krishnamoorthi

Gavin Bernard Horn

Amir Aminzadeh Gohari

Huilin Xu

Tamer Adel Kadous

Piyush Gupta

Xiaoxia Zhang

Seyed Ali Akbar Fakoorian

Pavan Kumar Vitthaladevuni

Sony Akkarakaran

Haitong Sun

Yu Zhang

Sundar Subramanian

Anthony Edet Ekpenyong

Mostafa Khoshnevisan

Xiao Feng Wang

Santosh Paul Abraham

Siddhartha Mallik

Muhammad Nazmul Islam

Muhammad Sayed Khairy Abdelghaffar

Shailesh Patil

Makesh Pravin John Wilson

Hwan Joon Kwon

Bilal Sadiq

Fuyun Ling

Weimin Duan

Brian Clarke Banister

Yongle Wu

Juergen Cezanne

Aamod Dinkar Khandekar

Peter J Black

Shimman Arvind Patel

Ashok Mantravadi

Farhad Meshkati

Danlu Zhang

Yeliz Tokgoz

Joseph Patrick Burke

Saurabha Rangrao Tavildar

Li Feng Zhang

Alberto Rico Alvarino

Wooseok Nam

Durga Prasad Malladi

Arumugam Chendamarai Kannan

Karl Georg Hampel

Mahmoud Taherzadeh Boroujeni

Chih-Hao Liu

Raghu Narayan Challa

Jun Ma

Aziz Gholmieh

Dake He

Zhifei Fan

Miguel Griot

Stephen Jay Shellhammer

Keiichi Kubota

Ashish Jagmohan

A method for wireless communication at a first wireless device and related apparatus are provided. In the method, the first wireless device communicates a first reference signal with a second wireless device based on a first frequency-modulated continuous wave (FMCW). The first wireless device further communicates a second reference signal with the second wireless device. The second reference signal is based on a second FMCW and has a second frequency bandwidth. The second frequency bandwidth is smaller than the first frequency bandwidth of the first reference signal, and the second reference signal has a frequency location based on the first reference signal. The first wireless device further communicates data with the second wireless device based on a channel estimation for a channel between the first wireless device and the second wireless device based on the second reference signal.

Two-step FMCW transmission for channel measurement accuracy enhancement

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network entity may receive, from a second network entity, an encoded communication. The first network entity may decode the encoded communication to obtain a communication via a list-based decoding scheme that includes respective parity check operations for each list of decoded information of a set of one or more lists of decoded information, the parity check operations being configured to be performed prior to a cyclic redundancy check (CRC) operation for the one or more lists of decoded information. Numerous other aspects are described.

Parity check for list-based decoding

A method of wireless communication is disclosed herein. The method includes measuring a WB channel via FMCW channel estimation. The method includes selecting a WB SSB and a subband in a BWP based on the measured WB channel. The method includes performing a RACH procedure based on the WB SSB and the subband in the BWP. The method includes outputting an indication of the performed RACH procedure based on the WB SSB and the subband in the BWP.

RACH based on FMCW channel sounding

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may generate a phase-ramped modulated data stream with a set of phase-shift keying (PSK) modulated symbols, wherein a phase-ramped modulation is applied to the set of PSK modulated symbols in a pre-discrete-Fourier-transform (pre-DFT) domain. The network node may transmit, to a user equipment (UE), the phase-ramped modulated data stream. Numerous other aspects are described.

Techniques for phase-ramped binary phase shift keying modulation for communication

Methods, systems, and devices for wireless communications are described for channel measurements for multiple uplink carriers in carrier aggregation (CA). A CA configuration may provide a first downlink carrier, a first uplink carrier, and a second uplink carrier. The second uplink carrier may be a supplemental uplink (SUL) carrier that does not have an associated downlink carrier in a same frequency band. A measurement downlink carrier may be configured and associated with the second uplink carrier, and measurements of a reference resource of the measurement downlink carrier may be used to determine transmission parameters of the second uplink carrier.

Techniques for channel measurements for multiple uplink carriers in carrier aggregation

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an indication of a set of frequency domain resources allocated to the UE for communicating data over a wireless channel. The UE may receive an indication of a waveform type associated with the set of frequency domain resources. The waveform type may be based at least in part on a data type of the data, may be used for a defined amount of time, and may be one of a plurality of waveform types that are multiplexed together over different frequency domain resources within a total system bandwidth. The UE may communicate within the set of frequency domain resources according to the indicated waveform type and the data type.

Mixed waveform communications

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a receiver device may receive encoded symbols, encoded using nonbinary polar coding, that include a set of information symbols, a set of partially frozen symbols, and a set of frozen symbols, where the set of information symbols and the set of partially frozen symbols indicate information bits, and where the set of information symbols indicate values in a set of values, and the set of partially frozen symbols indicate values in a proper subset of the set of values. The receiver device may decode the information bits from the encoded symbols. Numerous other aspects are described.

Nonbinary polar coding with partially frozen symbols

This disclosure provides systems, methods, and apparatuses, including computer programs encoded on computer storage media, for wireless communication. Various aspects relate to initial physical random access channel (PRACH) power control using multiple PRACH signals, and more particularly to supporting one or more initialization and power control operations between a user equipment (UE) and a network entity prior to an association process. The initial PRACH power control may include the UE transmitting, to the network entity, a first set of PRACH signals at different respective power levels. The network entity may transmit a response message indicating a single set of PRACH signals detected by the network entity, and the UE may detect whether a first PRACH signal, of the first set of PRACH signals, is included in the single set of PRACH signals to select a power level associated with the first PRACH signal for transmitting association messages.

Initial physical random access channel (PRACH) power control using multiple PRACH signals

The present disclosure provides self-decodable redundancy versions for a systematic code. An apparatus for wireless communications includes at least one processor coupled with a memory and comprising encoder circuitry configured to encode a set of information bits using a systematic code to generate an encoded bit stream with information bits and parity bits, and bit ordering circuitry configured to re-order bits in the encoded bit stream to distribute the information bits and the parity bits. The apparatus includes a transmitter configured to transmit the re-ordered bits in accordance with a radio technology via one or more antenna elements situated proximate the receiver.

Communication techniques with self-decodable redundancy versions (RVs) using systematic codes

Methods, systems, and devices for wireless communications are described. The described techniques generally provide for spatially coupled multiple-in multiple-out (MIMO) signaling for a single codeword across multiple layers. A transmitting device may transmit, via multiple time-frequency resources using multiple spatial layers, a set of code blocks associated with a codeword. At a first time-frequency resource, each code block of a first subset of the set of code blocks may be mapped to a respective transmission layer, and at a second time-frequency resource, each code block of a second subset of the set of code blocks may be mapped to a respective transmission layer, where the second set of code blocks is staggered from the first set of code blocks. By staggering code blocks across multiple time-frequency resources, a receiving wireless device may cancel out interference of one or more previously decoded code blocks.

Techniques for spatially coupled multiple-input multiple-output signaling

Methods, systems, and devices for wireless communications are described that provide for a transmitter (e.g., a user equipment (UE) or base station) and receiver (e.g., a UE or base station) to transmit and receive data packets that are encoded according to an outer coding technique. The outer coding technique may provide for data bits and parity bits to be included in a single physical layer transmission. In some cases, data packets (e.g., data bits) may be segmented into multiple subpackets, and coding may be performed across different subpackets of different data packets (e.g., in a diagonal coding pattern). In some examples, each transmission in the physical layer may contain both data subpackets and parity subpackets, which may balance an input and an output load of a buffer (e.g., a layer two (L2) decoding buffer at the receiver) during decoding.

Outer coding techniques in wireless communications

A network entity configures a synchronization signal block (SSB) using SSB resources that convey a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH) within an SSB resource area of a resource grid bounded in time by a first configured integer number of time units and bounded in frequency by a second configured integer number of physical channels. A product of the first configured integer number and the second configured integer number is a predetermined constant value, each symbol of the SSB has an equal number of resource elements (REs), and all REs in the each symbol of the SSB, except REs within a frequency guard band between any two of the PSS, the SSS, and the PBCH in the each symbol of the SSB, have non-zero values. A user equipment receives the SSB in the SSB resources as a beamformed SSB.

Primary synchronization signal design

Various aspects of the present disclosure generally relate to wireless communication. Some aspects more specifically provide procedures and configurations used to perform, at a transmitter, probabilistic amplitude shaping (PAS) of quadrature amplitude modulation (QAM) communications using non-binary polar coding (NBPC). NBPC differs from binary polar coding (BPC) in that BPC uses a binary-input channel whereas NBPC uses a non-binary input channel. For example, while BPC uses a log likelihood ratio (LLR) with a single value corresponding to a given bit to be shaped, NBPC may use a probability mass function (PMF) to define or represent amplitude shaping target values. As another example, aspects use non-binary transformations, which reduce the number of passes to shape q bits from q passes (for BPC) to 1 pass (for NBPC).

Non-binary polar codes for probabilistic amplitude shaping

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

Aspects presented herein provide a low PAPR waveform design based on resource spreading, pulse shaping, and/or dynamic MCS configuration, such that a transmitting wireless device may set IBO of its PA closer to the saturation point of the PA to enhance the PA efficiency. In one aspect, a first network node receives waveform information from a second network node, where the waveform information includes at least one of: one or more first parameters associated with a first waveform type or one or more second parameters associated with a second waveform type. The first network node processes data based on the one or more first parameters associated with the first waveform type or the one or more second parameters associated with the second waveform type. The first network node transmits a waveform based on the processed data, where the waveform is the first waveform type or the second waveform type.

Low peak-to-average power ratio waveform generation

Growing community of inventors

San Diego, CA, United States of America

Jing Jiang