Interdigital Patent Holdings, Inc.

Moon Il Lee

Paul Marinier

Tuong Duc Hoang

Martino M Freda

Tao Deng

Jaya Rao

Afshin Haghighat

Ghyslain Pelletier

Janet A Stern-Berkowitz

Faris Alfarhan

Young Woo Kwak

Erdem Bala

Oumer Teyeb

Patrick Tooher

Fumihiro Hasegawa

Nazli Khan Beigi

Chunxuan Ye

Diana Pani

Yugeswar Deenoo

Virgil Comsa

Aata El Hamss

Brian Alexander Martin

Pouriya Sadeghi

Loic Canonne-Velasquez

Dylan Duc Watts

Kunjan Shah

Aata Ei Hamss

Procedures, methods, architectures, apparatuses, systems, devices, and computer program products are disclosed that may be implemented in wireless transmit/receive unit (WTRU) for device-to-device communications, such as sidelink (SL) transmissions in a vehicle-to-everything (V2X) environment. In one representative method, the WTRU may monitor a resource pool for a first channel having 1st stage SL control information (SCI) and decode a detected 1st stage SCI. The 1st stage SCI may be associated with corresponding 2nd stage SCI. Based on information indicated by the decoded 1st stage SCI, the WTRU may determine whether to perform, or continue to perform, decoding of the associated 2nd stage SCI. The WTRU may also perform decoding of a second channel associated with the 1st stage SCI. The decoding of the 2nd stage SCI and the decoding of the second channel may be performed for a same sub-frame, slot and/or mini-slot.

Methods, architectures, apparatuses and systems for sidelink control information decoding reduction

Methods, apparatus, systems, architectures and interfaces for receiving system information performed by a wireless transmit receive unit (WTRU) having reduced capacity, are provided. A method may include any of: receiving a physical broadcast channel (PBCH) transmission of a cell, the PBCH transmission including information, wherein the information indicates a first control resource set (CORESET) associated with reception of a system information block (SIB); receiving, via the first CORESET, a first physical downlink control channel (PDCCH) transmission including information indicating a first type SIB associated with the first PDCCH transmission, wherein the information indicating the first type SIB includes information indicating a second CORESET that (1) is associated with reception of a second type SIB, and (2) has fewer resource blocks than the first CORESET; and receiving, via the second CORESET, a second PDCCH transmission including information indicating the second type SIB associated with the second PDCCH transmission.

Methods, apparatus, and systems for reduced bandwidth for reduced capability WTRUs

Procedures, methods, architectures, apparatuses, systems, devices, and computer program products directed to selection and/or reselection of WTRUs and paths are provided. Among such methods is a method that may be implemented in a first WTRU and may include determining first measurements based on first sidelink transmissions received from a second WTRU; receiving, from the second WTRU, second measurements associated with a path between the first WTRU and a third WTRU, wherein second measurements are based, at least in part, on sidelink transmissions exchanged between the third WTRU and the second WTRU or between the third WTRU and a fourth WTRU; determining a measurement of the path based on any of the first and second measurements; determining transmission parameters for transmitting discovery messages during a communication period based on any of the measurement of the path and quality of service criteria; and transmitting the discovery messages according to the transmission parameters.

Methods, architectures, apparatuses and systems directed to relay and path selection and reselection

Methods, apparatuses, systems, etc. directed to beam management for, and/or for use in connection with, multiple cells and/or multiple transmission/reception points are provided. Among the methods is a method that may include any of determining first and second reference signals sets (RS sets) associated with first and second sets of beams; receiving information for first and second beam failure recovery (BFR) sets corresponding to the first and second RS sets, wherein the information indicates an RS set associated with candidate beams (CB-RS set) and an uplink resource set for each of the first and second BFR sets; determining beam failures based on the first and second RS sets; selecting the CB-RS set and UL resource set from the first or second BFR set; determining an RS of the selected CB-RS set; and transmitting information indicating the beam failures using uplink resources of the selected uplink resource set.

Methods, apparatuses and systems directed to beam management in connection with multiple cells and/or multiple transmission/reception points

A method performed by a relay wireless transmit/receive unit (WTRU) includes receiving an indication of a change in state of a remote WTRU having a paging link with the relay WTRU, receiving a paging message from a network. The paging message includes a system information (SI) change indication, wherein the SI change indication indicates an availability of updated SI information from the network for the remote WTRU. The relay WTRU transmits the updated SI information to the remote WTRU based on the received indication of a change in state of the remote WTRU.

Method for efficient paging for user equipment to network relays

Method, apparatus, and systems for flexible aperiodic reference signal (RS) transmissions are provided. For example, a method implemented in a wireless transmit/receive unit (WTRU) for wireless communications comprises receiving configuration information of one or more sounding reference signal (SRS) resource sets, each SRS resource set of the one or more SRS resource sets is associated with a slot offset and a set of slot offset deltas; receiving downlink control information (DCI) indicating an SRS request, the SRS request indicates an SRS resource set of the one or more SRS resource sets; determining an SRS configuration from a set of SRS configurations for SRS transmissions; determining a slot for transmitting an SRS based on the determined SRS configuration; and transmitting, in the determined slot, the SRS using resources of the indicated SRS resource set.

Methods and apparatus for flexible aperiodic SRS transmission

Methods, apparatuses, systems, etc., directed to sounding reference signal (SRS) antenna switching are disclosed herein. In an embodiment, a WTRU may transmit information indicating existence of a sounding reference signal (SRS) power imbalance for at least one transmit and receive (xTyR) antenna configuration in a set of xTyR antenna configurations. For example, the WTRU may receive a request to report SRS power imbalance information. For example, the WTRU may transmit the SRS power imbalance information indicating, for at least one SRS resource set associated with the at least one xTyR antenna configuration, (i) one or more impacted SRS resources in the at least one SRS resource set and (ii) one or more power imbalance values for the one or more impacted SRS resources.

Methods, apparatuses and systems directed to sounding reference signal antenna switching

A method for a Wireless Transmit/Receive Unit (WTRU). The method including receiving from a network configuration information indicating multiple frequency layers for positioning reference signals; and at least one activated frequency layer from among the multiple frequency layers. The frequency layers may be associated with one or more carriers for data transmission, wherein the carrier is co-located with its associated frequency layer for positioning; and bandwidth parts (BWPs) within carriers for data transmission. The WTRU may receive from the network activation/deactivation information indicating activation/deactivation of any of a secondary cell (SCell) and a BWP. The WTRU may transmit information indicating, for example, a set of frequency layers used for positioning, wherein the set of frequency layers is enabled according to any of an accuracy requirement, a latency, a measured RSRP of one frequency layer, and a measured CSI-RS corresponding to BWPs being a threshold.

Methods and apparatus for enabling frequency layers for positioning

A method and apparatus for providing for full-duplex (FD) operation in time division duplex (TDD) communications are disclosed herein. A wireless transmit/receive unit (WTRU) may receive an indication of a first, UL heavy, TDD uplink (UL)/downlink (DL) configuration and an indication of a second, DL heavy, TDD UL/DL configuration. The WTRU may also receive a grant in a common DL subframe. The WTRU may apply the hybrid automatic repeat request (HARQ) process timing associated with one of the TDD UL/DL configurations for DL HARQ feedback. Also, the WTRU may monitor a set of subframes for a UL or a DL grant. Further, the WTRU may receive a grant in a subframe which may include an indication of a reference TDD UL/DL configuration. The WTRU may then apply the HARQ process timing associated with the reference TDD UL/DL configuration for DL HARQ feedback.

Full duplex operation in wireless systems

A first wireless transmit/receive unit (WTRU) may receive, from a second WTRU, sidelink control information (SCI), including first information indicating if a resource is reserved by the second WTRU, and second information indicating if the second WTRU is a power saving or non-power saving. The first WTRU may measure a reference signal receive power (RSRP) of signals transmitted by the second WTRU. The first WTRU may add a resource to a set of available resources if the first information indicates that the resource is not reserved by the second WTRU. If a resource is reserved, the WTRU may set an RSRP threshold to a first set or second threshold based on a power saving mode of the second WTRU. The first WTRU may add the resource to the set of available resources if the measured RSRP is less than the selected RSRP threshold.

Methods for power saving sensing and resource allocation

Methods, architectures, apparatuses and systems directed to relay selection and reselection

Methods, apparatus, and systems for reduced bandwidth for reduced capability WTRUS

A wireless transmit/receive unit (WTRU) may be configured for sidelink (SL) communication. The WTRU may receive SL discontinuous reception (DRX) configuration information from a peer SL WTRU. The SL DRX configuration information may comprise timer information. The timer information may comprise at least a SL on-duration timer, a SL inactivity timer, a SL hybrid automatic repeat request (HARQ) round trip time (RTT) timer, and a SL HARQ retransmission timer. The WTRU may apply the received SL DRX configuration information. The WTRU may report, on a condition that the WTRU has a connection to a network entity, to the network entity that the WTRU applied the received SL DRX configuration information.

Method and apparatus for performing simultaneous sidelink discontinuous (DRX) and uplink DRX in new radio (NR) vehicle to everything (V2X)

There may be one or more systems, methods, and/or devices that address a relay wireless communication scenario. For example, in such a scenario, there may be at least three entities, a remote a wireless transmit receive unit (WTRU) may need to communicate with a network node (e.g., gNB) and/or another WTRU that it cannot directly communicate with. This remote WTRU may communicate with a relay WTRU in order to communicate with the ultimate destination (e.g., another WTRU or a network node). The use of a relay may require establishment and configuration of one or more entities involved.

Device to device relay connection establishment and configuration

Methods and apparatuses are described herein for monitoring radio links between wireless transmit/receive units (WTRUs) and determining of radio link failure, and may be used, among others, for New Radio (NR) vehicular communication (V2X); a mode whereby WTRUs can communicate with each other directly. A radio link between a WTRU and another WTRU may be monitored independently per ongoing unicast and/or multicast link, and radio link failure (RLF) may be determined as a function of the monitoring.

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Melville, NY, United States of America

Moon Il Lee