Nokia Technologies Oy

Nokia Solutions and Networks Oy

Nokia Siemens Networks Oy

Hmd Global Oy

Toyota Jidosha Kabushiki Kaisha

Nokia Corporation

Ling Yu

Vinh Van Phan

Kari Veikko Horneman

Zexian Li

Jedrzej Stanczak

Nuno Manuel Kiilerich Pratas

Yang Liu

Peter Rost

Faranaz Sabouri-Sichani

Haitao Li

Seppo Ilmari Vesterinen

Kodo Shu

Amaanat Ali

Xiang Xu

Hajo Bakker

Frank Frederiksen

Devaki Chandramouli

Klaus Ingemann Pedersen

Mikko Aleksi Uusitalo

Matti Einari Laitila

Dawid Koziol

Timo Koskela

Ilkka Antero Keskitalo

Olli Piirainen

Karol Schober

Anand Bedekar

Sunyoung Lee

Samuli Heikki Turtinen

Timo Erkki Lunttila

Kari Juhani Hooli

Emad N Farag

Tao Chen

Hannu Petri Hietalahti

Sami-Jukka Hakola

Tero Henttonen

Daniela Laselva

Curt C Wong

Juha Sakari Korhonen

Klaus Hugl

Takayuki Shimizu

Anja Jerichow

Yong Liu

Yuanping Zhu

John P Kenney

Jiang Wang

Jun Tan

Tao Tao

Mikko Saily

Markus Isomäki

Rainer Liebhart

Ping-Heng Kuo

Lianghai Ji

Markku Juha Vainikka

Jakob Lindbjerg Buthler

Torsten Wildschek

Manivannan Thyagarajan

David Navratil

Yixue Lei

Rudraksh Shrivastava

Prajwal Keshavamurthy

Yong Teng

Berthold Panzner

Daniel Medina

Jani Moilanen

Andrea Cattoni

Hai Tao Li

Christian Mahr

Bikramjit Singh

Ottmar Aumann

Sudeep Hegde

Peter Szilagyi

Matti Tapani Kiiski

Thomas H Jacobsen

Oliver Blume

Nuno Pratas

György Tamás Wolfner

Diomidis Michalopoulos

Bernhard Wegmann

Gyorgy Tamas Wolfner

Antti Piipponen

Rakash Sivasiva Ganesan

Johanna Katariina Pekonen

Kari Juhani Niemela

Michael F Dolan

Jianguo Liu

Csaba Vulkan

David Navrátil

Jari Olavi Lindholm

Jyri Kalervo Hamalainen

Renato Barbosa Abreu

Kalle Petteri Kela

Naizheng Zheng

Mark Doll

Taylan Sahin

Laura Luque Sanchez

Qiaoling Yu

Hans Thomas Höhne

Antti-Veikko Sakari Piipponen

Lars Holst Christensen

Csaba Vulkán

Systems, methods, apparatuses, and computer program products for controlling the PDCP level data split from a remote UE over MP. One method may include a user equipment, receiving a message from a network entity comprising an indication of a path control via a configured grant, and, based at least in part on the indication of the path control via the configured grant, performing data transmission over at least one of a direct path with the network entity and an indirect path with the network entity via a relay user equipment.

Control of uplink data split from remote user equipment over multipath

An arrangement for role management in relay communication is disclosed. In relay communication, one user equipment relays communication between a base station and at least one remote user equipment. Initially, the relay user equipment has a better signal to a base station. When the signal changes, a better signal channel may be achieved by switching roles between a relay user equipment and a remote user equipment. This includes detecting that a better signal exists and determining that a change would provide a better signal.

Role management in relay communication

An ARQ system for sidelink communication between transmitter and receiver, with the help of cooperative UE, or relay UE is disclosed. The relay intercepts the initial transmission from transmitter to receiver. If the relay does not intercept any ARQ feedback from the receiver (DTX), it retransmits the initial transmission. Upon receiving at least the Sidelink Control Information, SCI, identifying the retransmission, the transmitter terminates the HARQ process, assuming that the relay is now in charge of the retransmission. Upon reception of the retransmission, the receiver feeds back an HARQ ACK to the relay and the transmitter. If the receiver correctly receives the initial transmission, it feeds back an HARQ ACK to the relay and the transmitter and both relay and transmitter stop the HARQ process. If the relay does not successfully receive the initial transmission, it feds back a NACK to the transmitter which performs retransmission to the relay.

SL data transmission for unicast sidelink between user equipments

A system and method for establishing a unicast sidelink communication channel between a source user equipment (UE) and a target UE via a relay UE is described. The source UE sends a relay request message to a potential relay UE. The message includes information to configure a sidelink Hybrid Automatic Repeat Request (HARQ) process with feedback enabled. The information also indicates no transport block for HARQ transmissions to the target UE and enables the relay UE to send a sidelink unicast message to the target UE using the source UE's identifier. The relay UE sends a sidelink message without a transport block to the target UE using the configured common HARQ process and resources and subsequently sends a response message to the source UE indicating an outcome of the HARQ process.

Terminal node to terminal node communication

Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of Channel Occupancy Time (COT) for Sidelink (SL) communication in Unlicensed band (U-band). The method includes receiving, at a first device and from a second device, configuration information associated with a COT at least for a SL transmission of the first device on an unlicensed resource pool allocated for the first device, the configuration information at least indicating whether a listen before talk procedure is required to be performed at the first device within the COT before the SL transmission; and performing the SL transmission within the COT based on the configuration information. In this way, the COT sharing mechanism can be used for SL communications in U-band and therefore a sensing procedure for resource selection may not be impacted by the LBT procedure.

Channel occupancy time for sidelink communication in unlicensed band

A method, apparatus and computer program product are provided for efficiently activating or deactivating user equipment. An example method includes receiving a deactivation request comprising one or more identifiers for one or more user equipment or one or more user equipment groups, determining which one or more user equipment or user equipment groups are impacted by the deactivation request and causing a suspend request to be transmitted to the one or more user equipment or user equipment groups that are impacted. Another example method is provided for receiving an activation request comprising one or more identifiers for one or more user equipment or one or more user equipment groups, determining which one or more user equipment or user equipment groups are impacted by the activation request, and causing a notice to be transmitted to the one or more user equipment or user equipment groups that are impacted.

Method and system for efficiently activating or deactivating user equipment

Various example embodiments provide efficient burst transmission of duplicated data packets. A data burst comprising multiple data packets may be configured to be transmitted on a first transmission leg. The data burst may be further configured to be transmitted on a second transmission leg with a different order of data packets. A reception status of the data packets may be configured to be determined based on transmissions on the first and second transmission legs and non-acknowledged data packets may be retransmitted on the first transmission leg and/or the second transmission leg. Apparatuses, methods, and computer programs are disclosed.

Burst transmission of data packets with feedback

Systems, methods, apparatuses, and computer program products for identifier (ID)-based inter-user equipment (UE) resource allocation (RA). A method may include receiving, at a first user equipment, a list of identifiers used for communication between a second user equipment and its one or more peer user equipment (UEs). The method may also include obtaining information of a first resource reserved for communication between the second user equipment and its one or more peer user equipment, based on the received list of identifiers. The method may further include determining a second resource for the second user equipment based on the obtained information of the first resource. In addition, the method may include allocating the second resource for sidelink communication of the second user equipment.

Inter-user equipment resource allocation

A method, apparatus, and a computer-readable storage medium are provided for joint management of resources of vehicle-to-everything (V2X) communications. In one example implementation, the method may include notifying, by a first user equipment (UE), one or more second user equipments (UEs) about a first group of resources selected for sidelink communications. The first user equipment (UE) and the one or more second user equipments (UEs) belong to a group of user equipments (UEs) with the first user equipment (UE) as a lead user equipment (UE) of the group of user equipments (UEs). The example method may further include receiving, by the first user equipment (UE), feedback from the one or more second user equipments (UEs); and determining, by the first user equipment, a second group of resources for sidelink communications of the group of user equipments (UEs), the second group of resources being determined based at least on the feedback received from the one or more second user equipments (UEs).

Coordination of sidelink mode-2 resource reservation for V2X communications

A method may include monitoring, by a source user equipment communicating with a destination user equipment by an indirect communication path via a relay user equipment, sidelink control information from the relay user equipment. The method may also include determining a first set of conditions and a second set of conditions based on the sidelink control information received from the relay user equipment. The method may further include transmitting, when the first set of conditions is met, at least one of a first sidelink message to the destination user equipment according to a first pattern, or a second sidelink message to the relay user equipment according to a second pattern. In addition, the method may include monitoring a sidelink feedback from the destination user equipment to the relay user equipment when the second set of conditions is met according to a third pattern.

Path switching in user equipment to user equipment relay

Systems, methods, apparatuses, and computer program products for device-to-device (D2D) assisted 5G timing synchronization by enabling or disabling time compensation are provided. One method may include determining to initiate a procedure to determine whether to enable or disable propagation delay (PD) compensation for acquiring 5G system (5GS) timing with a sidelink (SL) group of user equipment. When it is determined to initiate the procedure, the method may include transmitting propagation delay (PD) information of the user equipment as a sidelink (SL) groupcast message over a sidelink (SL) control channel to at least one of the group of user equipment, receiving at least one of acknowledgement or nonacknowledgement from one or more of the group of user equipment, and determining whether to enable or disable the propagation delay (PD) compensation based on the received acknowledgement or nonacknowledgement from the group of user equipment.

Device-to-device assisted timing synchronization

An apparatus comprises at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to perform generating assistance information for a network node. The network node provides a grant of resources for sidelink communications between the apparatus and at least one receiving user equipment. The receiving user equipment is configured to operate in a discontinuous reception mode comprising a discontinuous reception cycle with an active time and an inactive time. The assistance information comprises a plurality of elements indicative of characteristics of the sidelink communications and at least one of the plurality of elements comprises an indication of the discontinuous reception mode of the receiving user equipment.

Allocating resources for direct user equipment communication

The method includes a processor of a first UE receiving first group information for a user group with user-device members, the first group information including information for mapping a sidelink channel resource for each of the user-device members to perform a groupcast communication over sidelink for the user group, the first UE being a user-device member of the user group. The method further includes receiving second group information for transmitting data within the groupcast communication, the second group information including updated information of the first group information that is specific to the first UE, initiating a first transmission process to transmit a first data block to the user group for the groupcast communication over the sidelink based on the first group information, and adapting the first transmission process of the first data block based on the second group information.

Method of sidelink groupcasting, and network node thereof

Systems, methods, apparatuses, and computer program products for user equipment behavior with respect to hybrid automatic repeat request retransmission in new radio sidelink co-existence scenarios with another technology are provided. For example, a method can include enabling, for a receiving user equipment, hybrid automatic repeat request negative acknowledgement only feedback. The method can also include first determining whether to condition negative feedback on at least one first condition, or second determining whether negative feedback is conditioned on at least one second condition. The method can further include third determining whether to retransmit a message according to hybrid automatic repeat request according to results of the first determining or the second determining. The method can additionally include communicating with the receiving user equipment based on a result of the third determining.

User equipment behavior of hybrid automatic repeat request retransmission in new radio sidelink co-existence scenario with other technology

One embodiment is directed to a method. The method comprises receiving a configuration of a resource pool for sidelink communication; determining there is a need for assistance from one or more other UEs in proximity in resource reservation or resource selection from the configured resource pool for SL communication of the UE; sending a request over SL for the needed assistance from the one or more other UEs in proximity based on the determination; monitoring and receiving possible response from the one or more other UEs in proximity which may include recommended resource from the configured resource pool for the request of UE; selecting resource for SL communication of the UE by taking into account the received response; and performing SL communication using the selected resource.

Apparatus and method for sidelink discontinuous reception

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Kauniainen, Finland

Ling Yu