Telefonaktiebolaget Lm Ericsson (publ)

Mediatek Corporation

Ericsson Gmbh

Mediatek Singapore Pte. Ltd.

Industrial Technology Research Institute

Jiann-Ching Guey

Chia-Hao Yu

Ming-Po Chang

Havish Koorapaty

Dennis Hui

Jung-Fu Cheng

Chun-Hsuan Kuo

Chiou-Wei Tsai

Cheng-Rung Tsai

Weidong Yang

Daniel Chen Larsson

Mattias Frenne

Kumar Balachandran

Kambiz Casey Zangi

Chao-Cheng Su

Yuanyuan Zhang

Ali S Khayrallah

Lung-Sheng Tsai

Ju-Ya Chen

Chien-Hwa Hwang

Shing-Wa Wong

Pei-Kai Liao

Leonid Krasny

Abdulrauf Hafeez

Nils Rutger Rydbeck

Aimin Justin Sang

Timothy Perrin Fisher-Jeffes

Chien-Yi Wang

R David Koilpillai

Barbara Davis Molnar

Hsien-Ping Lin

Pål Frenger

Sven Oscar Petersson

Tao Chen

Rajaram Ramesh

Peter Larsson

Christian Hoymann

Hsuan-Li Lin

Ylva Jading

Chien-Chang Li

Abdelkader Medles

Chun-Ming Kuo

Essam Abdelfattah Sourour

Tzu-Jane Tsai

Afif Osseiran

Tzu-Han Chou

Gyu Bum Kyung

Chao-Yuan Hsu

Arnaud Abel Francois Cupillard

Abdulfauf Hafeez

Dennis Hul

Cheng Rung Tsai

Yahia Ahmed Mahmoud Mahmoud Shabara

Pedram Kheirkhah Sangdeh

Guo Hau Gau

Techniques pertaining to channeling state information (CSI) pre-processing are described. A user equipment (UE) that is in wireless communication with a base station node extracts eigenvectors (EVs) from CSI acquired by the UE. The UE generates pre-processed CSI for compression by a machine-learning (ML)-based encoder of the UE into CSI feedback for the base station node by at least performing one or more of a phase discontinuity compensation (PDC), a one-step polarization separation with re-ordering, or a two-step polarization separation that includes separation based on polarization type and separation by position on the EVs.

Techniques for channel state information (CSI) pre-processing

The scheduling flexibility of CSI reference signals enables time and frequency synchronization using multiple non-zero CSI-RSs transmitted in the same subframe, or using CSI-RSs transmitted in the same subframe with other synchronization signals. Also, multiple synchronization signals may be scheduled in the same subframe to enable fine time and frequency synchronization without cell-specific reference signals.

Time and frequency synchronization

A method of downlink channel state information (DL CSI) computation and reporting is proposed to support high velocity in new radio (NR) systems. In a first novel aspect, two CSI reference slots are defined. CSI reference slot for CSI measurement is defined for determining which CSI-RS/SSB occasion(s) is used for computing CSI. CSI reference slot for CSI computation is defined for determining the slot where UE assumes the CSI computation should be based upon the channel at that time onwards. In a second novel aspect, UE can be configured with a CSI computation period consisting of one or N slots and can be divided into multiple sub-periods without overlap. UE can be configured to compute and report wideband CSI and subband CSI for the whole CSI computation period and/or for each sub-period.

Method for configuring channel state information computation period for high mobility

In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE receives a first indication that downlink control information in a control channel schedules C downlink data channels on a component carrier. C is an integer greater than 0. The UE receives a second indication that acknowledgments of the C downlink data channels are transmitted according to N transport block (TB) groups. N is an integer greater than 0. The UE allocates the C downlink data channels to the N TB groups and transmitting N respective acknowledgments corresponding to the N TB groups based on a relation between C and N.

PDSCH grouping transmission and associated HARQ-ACK codebook construction for multi-PDSCH scheduling

A partial sounding method for sounding-reference-signal (SRS) is proposed. The network node may transmit higher-layer signal configuring a fractional SRS resource for partial sounding in configured resource blocks (RBs) to user equipment (UE). The UE may determine an SRS sequence length and a frequency-domain starting position of the fractional SRS resource based on the higher-layer signal to increase the SRS capacity.

Partial sounding method for sounding reference signal in mobile communications

Method for channel state information measurement and computation for high mobility

The UE allocates a slot group including a number of consecutive slots based on an operating subcarrier spacing. The UE receives a configuration allocating blind detections over non-overlapping CCEs in the slot group among a group of component carriers of the UE using the operating subcarrier spacing. The UE performs, in the slot group, a next set of blind detections over a next set of non-overlapping CCEs on a given component carrier of the group of component carriers in accordance with the configuration, when (a) a total number of blind detections that would have been performed in the slot group by the UE does not exceed a limit of total blind detections and (b) a total number of non-overlapping CCEs that would have been monitored in the slot group by the UE does not exceed a limit of total non-overlapping CCEs.

Multi-slot PDCCH monitoring framework

Examples pertaining to a floating frame-based channel occupancy time (COT) in a fixed frame period (FFP) in mobile communications are described. An apparatus implemented in FBE performs clear channel assessment (CCA) of a channel. The apparatus then transmits during a COT within a FFP in response to the CCA indicating the channel to be clear for transmission.

Floating frame-based channel occupancy time in fixed frame period in mobile communications

In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE detects one or more signals transmitted from a base station in a first unit of a set of units contained in a bandwidth part of an unlicensed carrier, the first unit having contiguous frequency resources. The one or more signals indicating that the base station has occupied the first unit for a first time duration and indicating a schedule of a set of slots in the first time duration for communication with the base station. The UE receives, in a first time slot of the set of slots and from the base station, a control channel.

BWP operation in NR-based unlicensed spectrum

An apparatus (e.g., a user equipment (UE)) maps a plurality of mutually orthogonal sequences to each of a plurality of physical resource blocks (PRBs) within an interlace. The apparatus then performs a physical uplink control channel (PUCCH) transmission in a New Radio unlicensed spectrum (NR-U). The apparatus also receives an assignment of a set of sequences for each PRB of the plurality of PRBs from a wireless network. In response, the apparatus performs an uplink control information (UCI) transmission via the PUCCH in the NR-U.

Enhanced PUCCH format 0 and format 1 design for new radio unlicensed spectrum operation

Techniques and examples of efficient detection of a transmission session in New Radio unlicensed spectrum (NR-U) are described. An apparatus (e.g., user equipment (UE)) detects presence of an indication from a base station of a wireless network in an NR-U. The apparatus determines that a transmission opportunity (TXOP) follows the indication responsive to the detecting. The apparatus then receives a downlink (DL) transmission in the NR-U from the base station during the TXOP.

Detection of beginning of a transmission session in new radio unlicensed spectrum

Various solutions for wake-up signal and preamble design for mobile communications are described. An apparatus, while in a first mode of operation, receives a wake-up signal (WUS) from a network. In response to receiving the WUS, the apparatus switches to a second mode of operation from the first mode of operation. The apparatus then detects a preamble in downlink (DL) transmissions from the network. In response to detecting the preamble, the apparatus monitors a physical downlink control channel (PDCCH) to check for an uplink (UL) transmission grant for the apparatus from the network.

Wake-up signal and preamble design for mobile communications

Examples pertaining to precoding-matched channel state information (CSI) feedback in mobile communications are described. An apparatus (e.g., UE) beamforms one or more of a plurality of ports used in reception of a channel state information reference signal (CSI-RS) with one or more precoders that are applied on one or more of the plurality of ports used in reception of a demodulation reference signal (DMRS) or a physical downlink shared channel (PDSCH). The apparatus generates a CSI feedback comprising at least a plurality of channel quality indication (CQIs) with respect to a plurality of hypothesized ranks. The apparatus then transmits the CSI feedback to a network.

Precoding-matched CSI feedback in mobile communications

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Hsinchu, Taiwan

Jiann-Ching Guey