Samsung Electronics Co., Ltd.

Apple Inc.

Kyeongin Jeong

Nishithkumar D Tripathi

Sangeetha L Bangolae

Ansab Ali

Emad N Farag

Youn Hyoung Heo

Shiyang Leng

Aristides Papasakellariou

Hongbo Si

Joonyoung Cho

Hong He

Jie Cui

Candy Yiu

Alexandre Saso Stojanovski

Jeongho Jeon

Sudeep K Palat

Marta Martinez Tarradell

Robert Zaus

Eunsun Kim

Andrew Park

Anil Agiwal

Methods and apparatuses for measurement and cell reselection in NTN. A method of operating a UE comprises: determining, based on a first threshold and a second threshold, whether a first condition is satisfied; determining, based on a third threshold, whether a second condition is satisfied; and skipping measurement operations on neighboring cells in a NTN based on a determination that the first condition and the second condition are satisfied, wherein: the first condition corresponds to a cell selection receive (RX) level value (Srxlev) being greater than the first threshold and a cell selection quality value (Squal) being greater than the second threshold, respectively, and the second condition corresponds to a distance between a UE location and a serving cell reference point being less than the third threshold.

Measurement and cell reselection in a NTN

Methods and apparatuses for a timing advance report an NTN is provided. The method of UE comprises: receiving, from a BS, first information including satellite assistance information for a target satellite; receiving, from the BS, second information including timing information, wherein the timing information includes at least one of a start time and a time duration for a synchronization operation; determining whether a RACH-less synchronization operation is configured; and initiating, based on the satellite assistance information and the timing information, the synchronization operation by performing a RA procedure upon a determination that the RACH-less synchronization operation is not configured.

Triggering timing synchronization in non-terrestrial networks

Methods and apparatuses for a channel access in a wireless communication systems. A method of a UE in a wireless communication system, the method comprising: determining whether, for a first time duration, a channel is sensed as an idle state for a channel access procedure; occupying the channel for a second time duration based on a determination that the channel is sensed as the idle state; and transmitting, for at least a portion of the second time duration, a signal on the channel, wherein the first time duration and the second time duration are based on a SL PPPP for a SL communication.

Channel access procedure for SL transmission over unlicensed band

Methods and apparatuses for an UE operation upon RLF detection in a SL CA in a wireless communication system. A method of operating a UE includes receiving, from a base station (BS), configuration information about multiple sidelink (SL) carriers for a SL carrier aggregation (CA) operation; when a hybrid automatic repeat request (HARQ) feedback corresponding to s SL carrier among the multiple SL carriers is not received for consecutive N times and the SL carrier is not a last configured SL carrier, releasing the SL carrier for a corresponding destination layer 2 identifier (L2 ID); and when the HARQ feedback corresponding to the SL carrier among the multiple SL carriers is not received for a consecutive M times and the SL carrier is the last configured SL carrier, releasing a PC5-radio resource control (PC5-RRC) connection for the corresponding destination L2 ID.

Method and apparatus for operation upon RLF detection in SL CA

Methods and apparatus for inter-UE coordination signaling in a wireless communication system. A method of operating a UE includes receiving a first SCI format 1-A from a first UE and a second SCI format 1-A from a second UE. The first SCI format 1-A includes a first priority value pand reserves a first SL resource. The second SCI format 1-A includes a second priority value pand reserves a second SL resource. The method further includes identifying a conflict when the first and second SL reserved resources overlap in time and frequency; determining, based on the priority values, whether to indicate conflict information to the first UE or the second UE; and transmitting a PSFCH with the conflict information. When p>p, the conflict information is indicated to the first UE and, when p=p, the conflict information is indicated to the first UE or the second UE.

Method and apparatus for inter-UE coordination signaling

Methods and apparatuses for a joint operation of a conditional handover (CHO) and a conditional primary secondary cell group (SCG) cell (PSCell) addition/change (CPA/CPC) in a wireless communication system. A method of a UE comprises triggering a joint operation of a CHO and a CPC and determining whether the CHO fails while performing the joint operation of the CHO and the CPC. The method further includes halting a CPC execution condition evaluation or a CPC execution based on a determination that the CHO fails and performing a failure recovery procedure for the joint operation of the CHO and the CPC.

Failure recovery for joint operation of conditional handover and conditional PSCell addition or change

Methods and apparatuses for inter-user equipment (UE) coordination in sidelink (SL) carrier aggregation (CA) in a wireless communication system. A method of operating a UE includes: receiving, from a base station (BS), configuration information about multiple SL carriers for a SL CA operation; determining whether a SL radio link failure (RLF) is detected for a SL carrier among the multiple SL carriers; and starting a timer for the SL carrier based on a determination that the SL RLF is detected, wherein an activation or a deactivation of the SL carrier is determined based on a status of the timer.

Method and apparatus for inter-UE coordination in SL CA

An apparatus of a first user equipment (UE) comprises one or more baseband processors to generate a message for a second UE to configure a New Radio (NR) vehicle-to-everything (V2X) link between the first UE and the second UE, wherein the message includes a Quality of Service (QoS) metric to encode a plurality of QoS parameters for the NR V2X link, and to encode a packet for the second UE according to the QoS parameter. The apparatus can include a memory to store the message.

QoS management aspects for NR sidelink to support advanced V2X use cases

Methods and apparatuses for reporting UE location information in a wireless communication system. A method of operating a UE comprises: receiving, from a base station (BS) in a non-terrestrial network (NTN), a message requesting to report the UE location information; generating, based on a positioning operation, first UE location information; generating second UE location information that is derived from the first UE location information; and transmitting, to the BS, the second UE location information as the UE location information.

Method and apparatus for determination and reporting of UE position in an NTN

Methods and apparatuses for enhanced conditional PCell/PSCell addition and changes in a wireless communication system. A method of a UE comprises: receiving reservation information including an indication; determining, based on the indication, whether a candidate PCell/PSCell is reserved; storing, based on a determination that the candidate PCell/PSCell is reserved, the reservation information, CG information and one or more execution conditions associated with the reserved PCell/PSCell; retrieving, after performing a first UE operation, the stored CG information and one or more execution conditions associated with the reserved PCell/PSCell; determining whether one or more execution conditions are met for a reserved PCell/PSCell; and upon determination that one or more execution conditions are met, applying the stored the CG information of the reserved PCell/PSCell to a second UE operation.

Method and apparatus for conditional PSCell addition and change

Methods and apparatuses in a wireless communication system for a user equipment (UE) to perform a power management method. The method includes receiving, by the UE, one or more power parameters for a non-terrestrial network (NTN). The method also includes selecting a power management method from one of: a predictive transmit power method based on time and the distance between the UE and an NTN entity or a non-predictive transmit power method. The method also includes determining a power based on the power management method and the power management parameters. The method further includes transmitting a signal to the reception point using the power.

Enhanced uplink power control

An approach is described for a user equipment (UE) to provide vehicle-to-everything (V2X) communication in a 5G new radio (NR) network. The UE includes processor circuitry that mode switches between two modes of resource allocation for the V2X communication, the two modes being a first mode and a second mode, wherein the first mode is a network scheduled resource allocation mode, and the second mode is a UE autonomous resource allocation mode. The UE also includes radio front end circuitry that communicates with a second UE using a V2X sidelink in the first mode or the second mode.

Methods for simultaneous support of and switching between scheduled and UE autonomous resource selection modes for NR V2X sidelink

Methods and apparatuses for sidelink (SL) network assisted inter-user equipment (UE) coordination in a wireless communication system. A method for operating a UE includes receiving, on a Uu interface, a message associated with SL inter-UE coordination information, determining SL resources for a SL transmission based on the SL inter-UE coordination information, selecting the SL resources for the SL transmission, and transmitting on a SL interface using the SL resources. A method of operating a BS includes receiving, on a Uu interface, a message including first SL inter-UE coordination information from a first UE, determining a second UE as a recipient for the first SL inter-UE coordination information, generating second SL inter-UE coordination information from aggregation of the first SL inter-UE coordination information and other SL inter-UE coordination information, and transmitting the second SL inter-UE coordination information to the second UE.

Sidelink network assisted inter-UE coordination

Some embodiments of this disclosure include apparatuses and methods for sidelink connection establishment design to support unicast and groupcast communication for NR V2X in a wireless communication system. The apparatuses and methods include at least generating an announcement of support for a unicast or a groupcast communication for a vehicle-to-everything (V2X) service, generating one or more connection establishment request messages for a secure link establishment to a second UE, to support a V2X communication to enable the V2X service, where the one or more connection establishment request message includes: a first connection establishment request message that is transmitted over a PC5-S interface, and a second connection establishment request message that is transmitted over a PC5-RRC interface. The apparatuses and methods further include at least processing a response message from the second UE that accepts or rejects the connection establishment request message for the secure link establishment.

Sidelink connection establishment design to support unicast and groupcast communication for NR V2X

Methods and apparatuses in a wireless communication system. A method of operating a user equipment BS includes generating a first indicator requesting a report of a set of sidelink (SL) discontinuous reception (DRX) configurations for SL communications among user equipments (UEs); transmitting a downlink signal including the first indicator; receiving an uplink signal including the report of the set of the SL DRX configurations based on the first indicator indicating that the report of the set of the SL DRX configurations is requested; and configuring, based on the report of the set of the SL DRX configurations, a network DRX configuration for a Uu interface between a UE and a network entity including the BS.

Growing community of inventors

Allen, TX, United States of America

Kyeongin Jeong