Abstract: In one aspect of the teachings herein, a radio network node (20) associated with a source cell (22-1) provides sidelink configuration information to a wireless device (16) to be handed over to a target cell (22-2). The information indicates the sidelink synchronization and resource configurations associated with the target cell, and the wireless device performs sidelink communications based on the sidelink synchronization and resource configurations of the target cell. Receiving the sidelink resource and timing information associated with the target cell enables the wireless device to perform sidelink communications using the target-cell resources and timing, even while still being served in a cellular sense from the source cell. Thus, the wireless device may begin or resume sidelink communications using the sidelink timing and resources associated with the target cell, irrespective of whether cellular handover of the wireless device from the source cell to the target cell has completed.

Abstract: Embodiments of the present disclosure provide methods, apparatuses and computer programs for scheduling a transmission. A method implemented at terminal device comprises receiving, from a network device, a scheduling configuration for a device to device, D2D, transmission of the terminal device receiving, from the network device, an uplink scheduling grant for a cellular uplink transmission in a some time resource overlapping with the D2D transmission; determining a scheduling priority for the D2D transmission relative to the cellular uplink transmission based on at least mine of: a first comparison between an associated priority of the scheduling configuration and a first priority threshold, and a transmission restriction; and performing at least one of the D2D transmission and the cellular uplink transmission based on the determined scheduling priority. With embodiments of the disclosure, D2D transmission and cellular uplink transmission from a terminal device can be well coordinated.

Abstract: A method in a wireless device is disclosed. The method comprises determining one or more time resources in a particular carrier from one or more pools of time resources for a sidelink operation by the wireless device. The method comprises sending a gap request message to a network node, the gap request message indicating one or more gaps requested by the wireless device, the one or more gaps comprising the determined one or more time resources for the sidelink operation.

Abstract: A method in a wireless device is disclosed. The method comprises receiving one or more resource pool configurations for a particular discovery carrier, the one or more resource pool configurations comprising information indicating one or more of resource elements and subframes that the wireless device should use to monitor for incoming discovery messages and transmit outgoing discovery messages, the received one or more resource pool configurations comprising at least a first resource pool configuration received from a serving network node of the wireless device operating in Time Division Duplex (TDD) mode. The method comprises determining which of the received one or more resource pool configurations that the wireless device should use to monitor for incoming discovery messages and transmit outgoing discovery messages.

Abstract: A method performed in a network node of a cellular network that also includes a wireless device, the wireless device being in a discontinuous reception mode having receiving periods and idle periods. The method involves transmitting a first control signal to the wireless device during a receiving period for the wireless device; determining that a first control signal is likely to have failed to be correctly received by the wireless device; and determining that a second control signal needs to be transmitted to the wireless device, the second control signal corresponding to the first control signal. When the wireless device is in an idle period, the method further involves postponing any transmission of the second control signal until the wireless device is in a receiving period; and transmitting the second control signal to the wireless device when the wireless device is in the receiving period.

Abstract: A method performed by a first wireless device (120) for transmitting a synchronization signal to a second wireless device (122). The first and second wireless devices (120,122) operate in a wireless communications network (100). The first wireless device (120) receives, from a network node (110) operating in the wireless communications network (100), a message indicating whether or not a carrier is to be used for transmitting a synchronization signal to the second wireless device (122). Further, the first wireless device (120) transmits, to the second wireless device (122), a synchronization signal on a carrier indicated by the received message.

Abstract: A method in a wireless device is disclosed. The method comprises determining one or more time resources in a particular carrier from one or more pools of time resources for a sidelink operation by the wireless device. The method comprises sending a gap request message to a network node, the gap request message indicating one or more gaps requested by the wireless device, the one or more gaps comprising the determined one or more time resources for the sidelink operation.

Abstract: The disclosure relates to a method performed by a UE, for using subframes of a radio access network for a D2D communication. The method comprises determining subframes available for D2D communication among subframes of the radio access network. The subframes available for D2D communication exclude a number of subframes of the radio access network, such that a periodicity of the D2D communication in number of subframes divides the number of subframes available for D2D communication. The method also comprises using the determined subframes for enabling D2D communication.

Abstract: A user equipment (110A), an application managing function (130) and methods therein for managing a message transferable over a radio interface of the user equipment (110A) are disclosed. The user equipment (110A) receives (310) a configuration comprising a set of service identifiers mapped to a set of barring categories. Moreover, the user equipment (110A) receives (320) a set of barring parameters mapped to the set of barring categories. The user equipment (110A) also obtains (330) a service identifier associated with the message. Next, the user equipment (110A) determines (340), based on the configuration, a barring category that is mapped to the service identifier. The user equipment (110A) determines (350) a barring parameter that is mapped to the barring category. Then, the user equipment (110A) manages (360) a transfer of the message over the radio interface according to the barring parameter. Corresponding computer programs and computer program carriers are also disclosed.

Abstract: A method performed by a wireless device for performing an uplink control channel transmission in a serving cell in a wireless communications network is provided. The wireless device is configured with a set of serving cell(s) in the wireless communications network. First, the wireless device determines a number of serving cells of the set of serving cell(s) that are relevant to consider when performing the uplink control channel transmission in the serving cell. Secondly, the wireless device selects an uplink control channel format from a set of uplink control channel formats for uplink control channel transmissions based on the determined number of serving cells. Then, the wireless device performs the uplink control channel transmission in the serving cell using the selected uplink control channel format. A wireless device for performing an uplink control channel transmission in a serving cell in a wireless communications network is also provided.

Abstract: The disclosure relates to a method performed by a UE, for using subframes of a radio access network for a D2D communication. The method comprises determining (650) subframes available for D2D communication among subframes of the radio access network. The subframes available for D2D communication exclude a number of subframes of the radio access network, such that a periodicity of the D2D communication in number of subframes divides the number of subframes available for D2D communication. The method also comprises using (660) the determined subframes for enabling D2D communication.

Abstract: According to certain embodiments, a method by a wireless device is provided for resource sensing. The method includes acquiring, from a network node, an indication of resources associated with a first resource pool. The first resource pool is for use in an exceptional communication with another device. A triggering event associated with signalling from the network node is identified. Based on the triggering event, a need for the exceptional communication with the other device is determined. At least one resource is selected from the first resource pool, and a message is transmitted using the at least one resource selected from the first resource pool.

Abstract: A method in a wireless device is disclosed. The method comprises receiving one or more resource pool configurations for a particular discovery carrier, the one or more resource pool configurations comprising information indicating one or more of resource elements and subframes that the wireless device should use to monitor for incoming discovery messages and transmit outgoing discovery messages, the received one or more resource pool configurations comprising at least a first resource pool configuration received from a serving network node of the wireless device operating in Time Division Duplex (TDD) mode. The method comprises determining which of the received one or more resource pool configurations that the wireless device should use to monitor for incoming discovery messages and transmit outgoing discovery messages.

Abstract: A method by a first UE for selecting a radio resource for transmitting a packet, includes obtaining a basic period value related to expected timing of transmissions by a second UE. A sub-period value is obtained that is less than the basic period value. Radio resources are monitored for a packet or booking message that is transmitted by the second UE and indicates that the second UE will potentially transmit a next packet using a radio resource and timing. The monitoring is restricted to a timeframe determined based on the sub-period value within each occurrence of a time period determined based on the basic period value. Responsive to the monitoring identifying the packet or booking message, a radio resource is selected for use in transmitting a packet based on the radio resource and timing that is potentially to be used by the second UE to transmit the next packet.

Abstract: The disclosure provides a method in a User Equipment, UE. The method comprises determining an area in which the UE resides based upon the UE's location and area definition information. The method further comprises determining a set of broadcast services of interest based upon the determined area and bearer to area mapping information. The method further comprises transmitting an indication message to a network node when the set of broadcast services of interest is changed due to a change of the UE's location. With the proposed method, transmission efficiency and system performance are improved.

Abstract: An apparatus, system and method are introduced for controlling a user equipment in a first network with a resource control server. In one embodiment, the resource control server provides instructions over the second network to the user equipment of actions to be taken based at least in part on congestion within the first network.

Abstract: A method performed by a wireless device for performing an uplink control channel transmission in a serving cell in a wireless communications network is provided. The wireless device is configured with a set of serving cell(s) in the wireless communications network. First, the wireless device determines a number of serving cells of the set of serving cell(s) that are relevant to consider when performing the uplink control channel transmission in the serving cell. Secondly, the wireless device selects an uplink control channel format from a set of uplink control channel formats for uplink control channel transmissions based on the determined number of serving cells. Then, the wireless device performs the uplink control channel transmission in the serving cell using the selected uplink control channel format. A wireless device for performing an uplink control channel transmission in a serving cell in a wireless communications network is also provided.

Abstract: UEs are configured to transmit feedback related to data received on a multicast traffic channel on dedicated resources. Network nodes are configured to retransmit the data based on the received feedback.

Abstract: In certain embodiments, a method for use in a network node comprises sending a control information message to at least one wireless device that is in idle mode. The message comprises a mapping that maps a quasi co-location (QCL) assumption to a multicast transmission or multicast channel. For example, in certain embodiments, the multicast transmission or multicast channel is associated with a temporary multicast group indicator (TMGI), and the mapping maps the QCL assumption to the TMGI. The control information message causes the at least one wireless device to use the QCL assumption to decode the multicast transmission or multicast channel while in idle mode.

Abstract: A method in a wireless device is disclosed. The method comprises receiving one or more resource pool configurations for a particular discovery carrier, the one or more resource pool configurations comprising information indicating one or more of resource elements and subframes that the wireless device should use to monitor for incoming discovery messages and transmit outgoing discovery messages, the received one or more resource pool configurations comprising at least a first resource pool configuration received from a serving network node of the wireless device operating in Time Division Duplex (TDD) mode. The method comprises determining which of the received one or more resource pool configurations that the wireless device should use to monitor for incoming discovery messages and transmit outgoing discovery messages.