Interdigital Patent Holdings, Inc.

Telefonaktiebolaget Lm Ericsson (publ)

Idac Holdings, Inc.

Optis Wireless Technology, LLC

Sony Corporation

Idtp Holdings, Inc.

Sony Group Corporation

Vid Scale, Inc.

Ghyslain Pelletier

Paul Marinier

Diana Pani

J Patrick Tooher

Marian Rudolf

Benoit Pelletier

Martino M Freda

Tao Deng

Yugeswar Deenoo

Moon-il Lee

Faris Alfarhan

Stephen E Terry

Aata El Hamss

Janet A Stern-Berkowitz

Robert L Olesen

Christopher R Cave

Samian Kaur

Peter Shaomin Wang

Shahrokh Nayeb Nazar

Pouriya Sadeghi

Magnus Stattin

Allan Yingming Tsai

Tuong Duc Hoang

Pascal M Adjakple

Gwenael Poitau

Johan Torsner

Nobuyuki Tamaki

Afshin Haghighat

Virgil Comsa

Charles A Dennean

Sung-Hyuk Shin

Magnus Lindström

Guodong Zhang

Kyle Jung-Lin Pan

Janne Peisa

Chang-Soo Koo

Kai Liu

Jessica Östergaard

Jaya Rao

Li-Hsiang Sun

Jean-Louis Gauvreau

Lakshmi R Iyer

Shankar Somasundaram

Muhammad U Fazili

Stephen G Dick

Ulises Olvera-Hernandez

Henning Wiemann

Saad Ahmad

Michael Meyer

Mats Fredrik Sågfors

Erdem Bala

Jörg Huschke

Mai-Anh Phan

Stefan Parkvall

Jin Wang

Mahmoud Watfa

Jonas Pettersson

Moon Il Lee

Oghenekome Oteri

Chunxuan Ye

Stefan Wager

Fengjun Xi

Lars Sundström

Guanzhou Wang

Lujing Cai

Kiran K Vanganuru

Mahmoud Taherzadeh Boroujeni

Walter Müller

Anders Furuskär

Mats Fredrik Sagfors

Carola Faronius

Peter Moberg

Lila Madour

Michael F Starsinic

Riikka Susitaival

Stefan Wänstedt

Gregory S Sternberg

Krister Svanbro

Bengt Lindoff

Liangping Ma

Anantharaman Balasubramanian

Karl Norrman

Ravikumar V Pragada

Dimitrios Karampatsis

Mats Folke

Eva Englund

Balaji B Raghothaman

Henrik Enbuske

Robert A DiFazio

Anna Larmo

Oumer Teyeb

Christian Skärby

Ralph Neff

Louis Joseph Kerofsky

Ingemar Johansson

Tomas Frankkila

Onur Sahin

Sara Landström

Weimin Liu

Uwe Horn

Systems, methods, and instrumentalities are described for handling positioning reference signals in a wireless communication system. The positioning reference signals may be assigned priorities that may be used to facilitate various operations of a wireless transmit/receive unit (WTRU) such as positioning related services, collision avoidance, measurement and reporting, etc. The WTRU may be configured with multiple muting patterns associated with the positioning reference signals and may switch between different muting patterns based on the priorities of the positioning reference signals and/or other downlink (DL) or uplink (UL) transmissions that may overlap or collide with the positioning reference signals.

Handling positioning reference signals in wireless systems

Systems, methods, and instrumentalities (e.g. aspects of entities, interfaces and procedures in a wireless transmit/receive unit (WTRU) and/or network layers L1, L2, l3) are disclosed for low latency medium access control (MAC) protocol data unit (PDU) assembly in wireless systems, such as 5G flexible radio access technology (RAT) (5gFLEX). Latency may be reduced, for example, by WTRU determination of network transmission parameters and signaling prior to a transmission grant. A WTRU may receive a modulation and coding scheme (MCS), resource range, etc. prior to a grant, e.g., for use in future grants. Data blocks may be incrementally created/encoded prior to a grant. Data units may be segmented, assembled and multiplexed, for example, based on data block sizes that allow MAC and radio link control (RLC) processing prior to a grant. Flexible grant sizes may be provided for early generation of transport blocks before a grant. A minimum guaranteed transport block size (TBS) may be signaled to permit early generation of a MAC PDU. Transmission parameters may be selected prior to a grant, for example, using blind decoding or a DCI reception procedure.

Medium access protocol data unit assembly in wireless systems

Extended Reality (XR) applications may require high throughput and very low latency. New Radio (NR) Wireless receiver/transmitter units (WTRUs) running XR applications (XR-WTRUs) may be confronted with link failures when these applications are used in dense urban or indoor environments because of these devices operating in the millimeter band. Methods and devices are provided therefore for performing cell selection and beam management proactively to avoid link failure due to objects being in line of sight between the XR-WTRU and a network node with which it has established a connection. XR-WTRUs may therefore perform visual sensing that may enable visualizing current and future radio environment and using this information to prevent link failures by handing the XR-WTRU over to an alternative network node in line of sight of the XR-WTRU before the XR-WTRU is no longer in line of sight of the network node with which it has established a connection.

Methods, architectures, apparatuses and systems for extended reality-assisted radio resource management

Systems, methods, and devices for transferring data with different reliabilities. A wireless transmit/receive unit (WTRU) is configured with a first modulation and coding set (MCS) table and a second MCS table. The WTRU monitors for a radio network temporary identifier (RNTI). If the WTRU detects a first value for the RNTI, data is transferred with a first reliability. If the WTRU detects a second value for the RNTI, data is transferred with a second reliability.

Methods, systems, and devices for transferring data with different reliabilities

A method for determining a DRX operation in a wireless transmit receive unit (WTRU) that has information indicating multiple DRX configurations, includes selecting a first DRX configuration from the multiple DRX configurations based on a first cast type and an associated first quality of service (QoS) information for a first sidelink radio bearer (SLRB) configuration, selecting a second DRX configuration from the multiple DRX configurations based on a second cast type and an associated second QoS information for a second SLRB configuration, determining a sidelink monitoring time based on a combination of an active time associated with the first DRX configuration and an active time associated with the second DRX configuration, and monitoring a sidelink control channel using the determined sidelink monitoring time.

Methods for performing discontinuous reception on sidelink

A system and methods for performing phased reconfiguration in a wireless communications system are disclosed. A wireless transmit/receive unit (WTRU) may perform a phased reconfiguration from a source cell to a target cell. The WTRU may be connected to the source cell and may execute a first set of functions towards the source cell. The WTRU may monitor for a first set of preconfigured trigger conditions and a second set of preconfigured trigger conditions. The WTRU may commence a second set of functions towards the target cell based on detection of at least one of the first set of preconfigured trigger conditions while continuing to execute the first set of functions towards the source cell. The WTRU may cease to perform at least a subset of the first set of functions towards the source cell based on detection of at least one of the second set of preconfigured trigger conditions.

System and methods for phased reconfiguration in wireless systems

Physical layer processing and procedures for device-to-device (D2D) discovery signal generation and transmission and scheduling of D2D discovery signals are described. Detection and measurement of a D2D discovery signal, D2D signal identity management, and monitoring by a wireless transmit/receive unit (WTRU) of PDCCH for D2D discovery scheduling is described, as is a WTRU that may be configured with a D2D-specific transmission/reception opportunity pattern. The discovery signal may carry a payload for explicit information about user and/or service identity, and may be mapped to physical resources in such a way as to decouple transmission/reception of the discovery signal from downlink operations. A WTRU may measure a D2D discovery signal quality and report to the network.

Discovery signal generation and reception

A method and device for power savings on a dormant secondary cell group are disclosed. In an approach, a wireless transmit receive unit (WTRU) may receive, from a network, a report configuration to report a channel quality indicator to a master cell group, MCG, or a secondary cell group, SCG, based on the received configuration (e.g. comprising different periodicities in order to report the CQI). In an approach, the channel quality indicator may be transmitted with a decreasing regularity. In an approach, the channel quality indicator may be transmitted with a period (periodicity) that depends on a discontinuous reception status of the MCG. In an approach, the channel quality indicator may be transmitted depending on a presence of high priority data (e.g. number of DCIs received, preemption indication, LCH priority; PDCCH).

Methods and apparatus for power savings on a dormant secondary cell group (SCG)

A wireless transmit/receive unit (WTRU) may send, to a cellular network, a registration message that includes a request for local services including a network related name. The WTRU may receive, from a cellular network based on the registration message and location information of the WTRU, a higher layer signal with information including availability of a local service in a local area of the cellular network and a tracking area. The WTRU may determine, based on the information, when the WTRU is in the local area.

Accessing local networks in a communications network

Embodiments contemplate wireless transmit/receive unit (WTRU) transmissions of different types of uplink channels and/or signals in a system deployment where multiple destination points may exist. Some embodiments contemplate that a WTRU may select the destination point of a transmission on a dynamic basis. In one or more systems where destination point selection from among multiple potential destination points may be possible for a WTRU transmission, some embodiments contemplate the determination of the handling of hybrid automatic repeat request (HARQ) retransmissions and for different power headroom reporting mechanisms. Embodiments also contemplate the reduction and/or inhibition of WTRU transmissions to destination points to which the WTRU may have lost connectivity.

Multipoint transmission in wireless communication

Methods and apparatuses for accessing a wireless network are provided herein. A method according to at least one embodiment includes receiving a transmission including system information indicating a random access channel (RACH) configuration. The RACH configuration may indicate one or more RACH occasions and one or more preambles, each of the RACH occasions associated with at least one of the one or more preambles. The method may include receiving one or more reference signals and transmitting one of the preambles in a RACH occasion that is associated with the transmitted preamble. The transmitted preamble may be selected for transmission based on a measurement of the received one or more reference signals, and wherein the transmitted preamble is transmitted using beamforming parameters derived based on the received one or more reference signals.

Method and apparatus for accessing a wireless network

Systems, apparatuses, and methods are disclosed for receiving downlink control information (DCI) that may include an indication of a reference measurement resource (RMR), receiving an indication of a measurement configuration, and receiving an indication of a feedback resource configuration. A measurement report based on the indication of an RMR, an indication of a measurement configuration, and an indication of a feedback resource configuration may be generated and may be transmitted to a network device.

Systems and methods for reference signal measurements in wireless systems

Techniques for uplink power control (e.g., for New Radio (NR)) are disclosed. A wireless transmit/receive unit (WTRU) may determine that the WTRU is to perform a first and a second transmissions using a first and a second transmission beams. The WTRU may determine an uplink transmission power for one or more of the first or second transmissions. For example, if the angular separation of the first and the second transmission beams is greater than a first separation threshold, the WTRU may determine the uplink transmission power having a first maximum power level parameter and a second maximum power level parameter. If the angular separation of the first and the second transmission beams is less than a second separation threshold, the WTRU determine the uplink transmission power having a shared maximum power level parameter. The WTRU may transmit the first and second transmissions using the first and second transmission beams, respectively.

Uplink power control

Systems, methods, and instrumentalities are disclosed for uplink (UL) transmissions in wireless systems. The systems, methods and instrumentalities may include a wireless transmit/receive unit (WTRU) with a receiver configured to receive one or more uplink (UL) grants that may include allocations associated with a regular UL (RUL) carrier and a supplementary UL (SUL) carrier. The RUL and SUL carriers may be associated with a common downlink (DL) carrier of a serving cell. The WTRU may include a processor configured to select data from one or more logical channels for transmission in accordance with the allocations. The WTRU may include a transmitter configured to transmit data from one logical channel on the RUL carrier and to transmit data from another logical channel on the SUL carrier in accordance with the allocations.

Supplementary uplink transmissions in wireless systems

Systems, apparatus and methods are described for dynamic demodulation signal resource allocation. PDSCH/PUSCH DMRS enhancement is provided. A dynamic indication of reference signal functionality may be provided in a slot for an additional DM-RS. A configured CSI-RS/SRS may be dynamically indicated to use as an additional DM-RS in a slot. Frequency shift/hopping of DM-RS as a function of OFDM symbol and/or the order of OFDM symbol containing DM-RS may increase frequency density within a slot. DM-RS antenna port aggregation may increase DM-RS frequency density. One or more DM-RS antenna ports may be used to demodulate the same layer. PDCCH DMRS enhancement is provided. Frequency shift/hopping of PDCCH DMRS may be provided as a function of a REG index within an REG bundle, OFDM symbol index, etc. Use of multiple types of REG (e.g., low and high DM-RS) and REG type may be determined based on subcarrier spacing, operating frequency band, etc.

Dynamic demodulation signal resource allocation

Growing community of inventors

Montreal, Canada

Ghyslain Pelletier