Abstract: Example embodiments of the invention provide at least a method and apparatus for performing identifying, by a network node of a communication network, a configuration of interface availability for performing at least one of v2x service and/or proximity services by each of at least one network device; and communicating with the at least one network device information comprising the configuration based on the interface availability for use in performing the at least one of v2x service and/or proximity services. Further, for performing receiving, by a network device of a communication network, information comprising a configuration of interface availability for performing at least one of v2x service and/or proximity services by the network device; and determining, based on the received configuration, the interface availability for performing the at least one of v2x service and/or proximity services.

Abstract: There are provided measures for enabling/realizing flexible and adaptive QoS monitoring for unicast/groupcast over sidelink communication, which may preferably be capable of enhancing support of unicast/groupcast services over sidelink communication. Such measures exemplarily comprise obtaining a request for QoS monitoring for unicast/groupcast over sidelink communication with a specified quality-of-service profile, which indicates at least one target QoS metric to be monitored, determining a QoS monitoring procedure, wherein a scheme for enforcing QoS monitoring over sidelink communication in collaboration with at least one unicast/groupcast receiving-side device is decided, and performing the QoS monitoring procedure, wherein QoS monitoring messages are exchanged with the at least one unicast/groupcast receiving-side device over the sidelink communication with the specified QoS profile in accordance with the decided scheme and the at least one target quality-of-service metric is derived based thereon.

Abstract: According to a first embodiment, a method may include selecting, by a user equipment, at least one sidelink resource from at least one sidelink resource pool configured for initial access to at least one primary serving network entity. The method may further include transmitting, by the user equipment, at least one uplink request for initial access to the at least one primary serving network entity on the selected at least one sidelink resource. The method may further include receiving, by the user equipment, in response to the at least one uplink request, at least one indication from the primary serving network entity.

Abstract: An apparatus in a network node has circuitry configured for causing a scheduling of an uplink transmission for a first user equipment and a downlink reception for a second user equipment on at least one resource, wherein the at least one resource is at least partially shared between the first user equipment and second user equipment. The apparatus has circuitry configured for providing an instruction, to the first user equipment, to transmit a first signal within the at least one resource. The apparatus also has circuitry configured for providing an instruction, to the second user equipment, to detect the first signal within the at least one resource. The apparatus having further circuitry configured for receiving information, from the second user equipment, wherein the information includes an indication of whether the second user equipment has detected the first signal.

Abstract: When there is a role switch between a first apparatus acting as a relay node towards a wireless network for one or more second apparatuses acting as remote nodes a relay context used by the first apparatus towards the wireless network is communicated to a second apparatus using sidelink communication. After that the first apparatus starts to act as a remote node and the second apparatus starts to act as a relay node using the relay context. Use of the same relay context makes the role switch transparent to the wireless network.

Abstract: Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of a proactive switch of vehicle-to-everything communication from a device-to-device connection to a connection routed by one or more network devices. In example embodiments, a first terminal device receives, from a second terminal device via a device-to-device connection, an indication of a decision to switch the device-to-device connection to a connection routed by at least one network device for communication with the second terminal device. Based on the received indication from the second terminal device, the first terminal device then determines proactive switching from the device-to-device connection to the routed connection to be performed. The first terminal device then sends a request to a first network device of the at least one network device to set up the routed connection, the request indicating a cause for the determined proactive switching.

Abstract: Various communication systems benefit from suitable allocation. For example, system for vehicle to X communication may benefit from semi-persistent resource allocation mechanisms, for example, for uplink semi-persistent scheduling. A method can include configuring at least one main semi-persistent scheduling occasion to a user equipment. The method can also include configuring at least one subsequent semi-persistent scheduling occasion to the user equipment. The at least one subsequent semi-persistent scheduling occasion can depend on usage of the at least one main semi-persistent scheduling occasion.

Abstract: Various communication systems may benefit from differentiated quality of service management. For example, specific applications run on a user equipment in a 5G radio access network may benefit from the flexible differentiated quality of service management. A method includes determining a service flow setup, and mapping traffic through the service flow by a common convergence sublayer entity to at least one radio convergence sublayer entity. The method also includes controlling the traffic through the service flow.

Abstract: Methods, apparatuses, and computer program products are disclosed for implementing recovery from a communication failure. A method includes receiving, by a first user equipment, an indication that a second user equipment has experienced a failure, where the first user equipment and the second user equipment are part of a same device, and where the first user equipment is configured with a first primary reliability group and where the second user equipment is configured with a second primary reliability group; based upon the indication, the first user equipment transmitting to a network equipment a first signal to activate a secondary reliability group for the first user equipment; and receiving, by the first user equipment, a second signal to use the secondary reliability group, where the second signal is at least partially based upon the first signal transmitted from the first user equipment.

Abstract: Systems, methods, apparatuses, and computer program products for new radio (NR) sidelink (SL) hybrid automatic repeat request (HARQ) feedback are provided. One method may include monitoring, by a user equipment in sidelink groupcast configured with two stage hybrid automatic repeat request feedback channels, a first stage hybrid automatic repeat request feedback channel when no physical sidelink control channel and physical sidelink shared channel is received. The method may include sending a discontinuous transmission indicator or hybrid automatic repeat request negative acknowledgement on a second stage hybrid automatic repeat request feedback channel when hybrid automatic repeat request positive acknowledgement/negative acknowledgement is monitored on the first stage hybrid automatic repeat request feedback channel.

Abstract: A method, apparatus and computer program product establish at least two redundant protocol data unit sessions to at least one user equipment. The at least two redundant protocol data unit sessions are established based on dual connectivity in a radio access network. The method, apparatus and computer program product collect network status information related to the at least two redundant protocol data unit sessions. The method, apparatus and computer program product configure a set of protocol data unit session switching patterns for the at least two redundant protocol data unit sessions based on the real-time network status information.

Abstract: There is provided a method comprising: determining, by a first network node of a cellular communication network, that a transfer of a data block to a second network node of the cellular communication network needs a retransmission; determining whether at least one criterion for a size and/or latency requirements of said data block is met; and as a response to determining that the at least one criterion is met, performing the retransmission according to a first set of rules, otherwise performing the retransmission according to a second set of rules.

Abstract: Method and apparatus for device discovery are disclosed. In the method a type of device discovery to be used by a device for proximity services involving at least one another device is determined, wherein the available types of discovery comprise at least a first type discovery where additional resource information is provided for the device and a second type discovery where no additional resource information is provided. The method further comprises signalling Information based on the determined type of device discovery.

Abstract: Various communication systems may benefit from differentiated quality of service management. For example, specific applications run on a user equipment in a 5G radio access network may benefit from the flexible differentiated quality of service management. A method includes determining a service flow setup, and mapping traffic through the service flow by a common convergence sublayer entity to at least one radio convergence sublayer entity. The method also includes controlling the traffic through the service flow.

Abstract: Systems, methods, apparatuses, and computer program products for facilitating sidelink mode 2 random selection for support of sidelink DRX. A method may include receiving, with a first user equipment from a network node, an allocation of one or more physical sidelink control channel resources, wherein the first user equipment is configured to perform sidelink discontinuous reception. The method may also include performing autonomous selection of one or more resources of a physical sidelink shared channel from a resource pool. The method may further include performing sidelink communication with at least one of a resource of the one or more allocated physical sidelink control channel resources, or a resource of the one or more selected resources of the physical sidelink shared channel.

Abstract: 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).

Abstract: Systems, methods, apparatuses, and computer program products for physical sidelink transmission for sidelink inter-user equipment resource allocation. A method may include receiving at a first user equipment based on a decision of a second user equipment, a resource allocation from the second user equipment. The method may also include determining whether to transmit a sidelink control information associated to a transmission using the resource allocation over a control channel. The method may further include performing a transmission using the resource allocation.

Abstract: According to a first embodiment, a method may include transmitting, by a first user equipment, at least one sidelink failure indication using at least one sidelink failure recovery-specific configuration. The method may further include receiving, by the first user equipment, at least one sidelink failure response. The method may further include determining, by the first user equipment, at least one source-specific sidelink recovery mode associated with the at least one sidelink failure recovery-specific configuration.

Abstract: As an aspect, there is provided an apparatus comprising: at least one processor and at least one memory including a computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to: obtain, by an access node from a network control entity, at least one service flow configuration for a plurality of terminal devices in an industrial automation system, the configuration indicating an association between downlink and uplink message transmissions and a cycle time requirement with regard to communication between the network control entity and the plurality of terminal devices; allocate resources as a group of shared resources for the uplink message transmission for each of the plurality of terminal devices based on the association and according to the cycle time requirement, and transmit information on the allocation to the plurality of terminal devices, the information comprising a terminal device-specific resource indicator

Abstract: A method performed by an access node can comprise receiving, from a core network (CN), resource requirements for uplink transmissions corresponding to downlink transmissions of data between the access node and a user device, receiving, from the CN, downlink data destined for the user device, determining, based on the received resource requirements, a schedule for the received downlink data and for expected uplink data corresponding to the received downlink data, and sending the schedule to the user device.