Qualcomm Incorporated

Wei Yang

Seyedkianoush Hosseini

Yi Huang

Peter S Gaal

Wanshi Chen

Ahmed Elshafie

Jing Jiang

Huilin Xu

Hwan Joon Kwon

Gokul Sridharan

Krishna Kiran Mukkavilli

Tingfang Ji

Hung Dinh Ly

Seyed Ali Akbar Fakoorian

Gabi Sarkis

Linhai He

Mostafa Khoshnevisan

Xiao Feng Wang

Tao Luo

Jing Lei

Xiaoxia Zhang

Jing X Sun

Juan Montojo

Sony Akkarakaran

Kazuki Takeda

Joseph Binamira Soriaga

Alexei Yurievitch Gorokhov

Mahmoud Taherzadeh Boroujeni

Yuchul Kim

Ahmed Attia Abotabl

Renqiu Wang

John Edward Smee

Thomas J Richardson

Yan Zhou

Gavin Bernard Horn

Aleksandar Damnjanovic

Naga Bhushan

Alexandros Manolakos

Sudhir Kumar Baghel

Taesang Yoo

Peter Pui Lok Ang

Rajat Prakash

Iyab Issam Sakhnini

Aamod Dinkar Khandekar

Heechoon Lee

Piyush Gupta

Qing Li

Le Liu

Tien Viet Nguyen

Yang Yang

Hari Sankar

Diana Maamari

Pinar Sen

Jae Won Yoo

Kianoush Hosseini

Jay Kumar Sundararajan

Aziz Gholmieh

Yu Zhang

Prashanth Haridas Hande

Karthika Paladugu

Marwen Zorgui

Yongle Wu

Runxin Wang

Kirill Ivanov

Jun Ma

Seyong Park

Changlong Xu

Weimin Duan

Farhad Meshkati

Yeliz Tokgoz

Amir Aminzadeh Gohari

Yongjun Kwak

Joseph Patrick Burke

Chih-Ping Li

Tugcan Aktas

Ying Wang

Ruiming Zheng

Vinay Joseph

Changhwan Park

Yuwei Ren

Konstantinos Dimou

Allen Minh-Triet Tran

Hobin Kim

Sanghoon Kim

Lei Xiao

Chih Ping Li

Christos Komninakis

Alessandro Risso

Pranay Sudeep Rungta

Andreas Maximilian Schenk

Prashant Sharma

Kangqi Liu

Afshin Haftbaradaran

Shravan Kumar Reddy Garlapati

James Beckman

Omar Mehanna

Lai Wei

Amira Alloum

Suhas Subramanya Kowshik

Vamsi Krishna Amalladinne

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a configuration message configuring the UE to communicate coordinated transmissions with multiple transmission reception points (TRPs) using a first coordinated transmission mode of a set of different coordinated transmission modes. The UE may receive, based on the configuration message, downlink control information including at least one indicator and receive a first coordinated transmission communicated in accordance with the first coordinated transmission mode. The UE may transmit, in accordance with a feedback configuration corresponding to the at least one indicator and the first coordinated transmission mode, a feedback message for the first coordinated transmission to at least one of the multiple TRPs.

Feedback design for multi-transmission reception point transmission

Certain aspects of the present disclosure provide techniques for wireless communication by a user equipment (UE). According to certain aspects, a UE may be configured to determine that content of at least two first single-slot physical uplink control channel (PUCCHs) is to be multiplexed on to a second PUCCH, based on at least one rule, and process the second PUCCH, based on the at least one rule.

HARQ-ack feedback and intra-UE multiplexing

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network entity may encode first information using keying modulation. The first network entity may encode second information using frequency modulated continuous waveform (FMCW) modulation. The first network entity may transmit a communication that includes a first layer indicating the first information and a second layer indicating the second information. Numerous other aspects are described.

Layered modulation communication

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

Wireless communications systems, apparatuses, and methods are provided. A method of wireless communication performed by a user equipment (UE) includes receiving, from a network unit via a single physical downlink control channel (PDCCH) communication, a configuration scheduling multiple physical downlink shared channel (PDSCH) communications; transmitting, to the network unit via a first cell, a first physical uplink control channel (PUCCH) communication comprising acknowledgement/negative acknowledgement (ACK/NACK) feedback associated with a first subset of the multiple PDSCH communications; and transmitting, to the network unit, via a second cell, a second PUCCH communication comprising ACK/NACK feedback associated with a second subset of the multiple PDSCH communications, wherein the second cell is different from the first cell.

Carrier switching in hybrid automatic repeat requests

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

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration of a first hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook and a second HARQ-ACK codebook, wherein the configuration indicates that physical uplink control channel (PUCCH) carrier switching is enabled for at least one of the first HARQ-ACK codebook or the second HARQ-ACK codebook. The UE may receive an indication of a PUCCH carrier switch for the at least one of the first HARQ-ACK codebook or the second HARQ-ACK codebook. The UE may receive a downlink communication associated with the at least one of the first HARQ-ACK codebook or the second HARQ-ACK codebook. The UE may transmit HARQ feedback a target PUCCH carrier based at least in part on the indication of the PUCCH carrier switch. Numerous other aspects are described.

Physical uplink control channel carrier switch with multiple hybrid automatic repeat request acknowledgement codebooks

A method of wireless communication includes determining, by a user equipment (UE), that one or more symbols scheduled for reporting a hybrid automatic repeat request (HARQ) acknowledgement (HARQ-ACK) to a base station for a semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH) transmission include at least one invalid symbol, wherein the one or more symbols are located in a first slot or sub-slot; selecting, by the UE, based on one or more parameters of the SPS PDSCH transmission, a second slot or sub-slot, subsequent to the first slot or sub-slot, for sending a delayed HARQ-ACK for the SPS PDSCH transmission; and sending, by the UE to the base station, the delayed HARQ-ACK for the SPS PDSCH transmission on the second slot or sub-slot.

Delayed HARQ-ACK report for SPS

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may generate feedback messages according to a feedback codebook according to a feedback scheme indicating whether the UE is to include, or exclude, feedback information for physical downlink shared channels (PDSCHs) occurring prior to a bandwidth part (BWP) switch. For example, the UE may determine whether to include feedback information for any PDSCHs that occur prior to an uplink BWP switch for a UE that supports cell switching based on the cell in which the uplink BWP switch occurs, the cell in which the feedback message is scheduled for transmission (e.g., the same cell in which the PDSCHs occur, or a different cell), and a mode of PUCCH cell switching (e.g., dynamic or semi-static). The UE may also determine whether to send retransmissions of feedback information after a BWP switch.

Feedback codebook construction for control channel carrier switching

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

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network entity may schedule multiple downlink control information (DCI) messages, which schedule multiple uplink messages to be transmitted by a user equipment (UE) on physical uplink channel resources, such that each of the multiple DCI messages arrive at least a specified time duration earlier than a start of an earliest of the physical uplink channel resources. The network entity may transmit the multiple DCI messages as scheduled. The UE may prepare to receive the DCI messages as scheduled. Numerous other aspects are described.

Downlink control information scheduling

To enable HARQ-ACK multiplexing on PUSCH in UL CA, methods, apparatuses, and computer readable medium are provided. An example method includes selecting at least one of a plurality of PUSCHs in which to multiplex one or more UCI bits, one or more of the plurality of PUSCHs being associated with one or more UL grants, the one or more UL grants including one or more UL tDAI values. The example method further includes transmitting, to a network entity, the one or more UCI bits that are multiplexed with the at least one of the plurality of PUSCHs.

HARQ-ACK multiplexing on PUSCH in UL CA

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a UE may receive an indication that a transmission of first data is to be modified and that second data is to be transmitted in place of a portion of the transmission of the first data; and identify a single time at which the transmission of the first data is to be canceled and transmission of the second data can begin, based at least in part on capabilities of the UE. Numerous other aspects are provided.

Intra-user equipment prioritization of transmissions

Methods, systems, and devices for wireless communications are described for controlling multiplexing of a reference signal on an uplink shared channel (UL-SCH). In an implementation, a user equipment (UE) may time division multiplex (TDM) a demodulation reference signal (DMRS) with other signaling across symbol periods of one or more allocated resource blocks. The UE may map the DMRS to resource elements of one or more symbol periods within the allocated resource blocks. The UE may then map uplink control information (UCI) to one or more symbol periods different than the symbol periods of the DMRS mapping. In some cases, the DMRS, UCI, or both may be frequency interleaved with UL-SCH data for the allocated resource blocks. The UE may generate and transmit an uplink waveform for transmission within the allocated resources of the uplink shared channel.

Controlling multiplexing of a reference signal on an uplink shared channel

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San Diego, CA, United States of America

Wei Yang