Abstract: In some embodiments, a D2D capable wireless communication device receives parameters from a network node. The parameters comprise at least a first set of parameters indicating a configuration for use when the wireless communication device is in a first coverage scenario a second set of parameters indicating a configuration for use resources when the wireless communication device is in a second coverage scenario. The first coverage scenario is one of an in-network coverage (INC) scenario, a partial network coverage (PNC) scenario, or an out-of-network coverage (ONC) scenario. The second coverage scenario is a different one of the INC scenario, PNC scenario, or ONC scenario. The wireless communication device performs D2D operation in the first scenario based on the first set of parameters and in the second coverage scenario based on the second set of parameters.

Abstract: The present solution relates to a method in a user equipment (110) for providing navigation signals to a navigator device (104) for use in determining the location of the navigator device. The user equipment (110) selects a plurality of satellites whose signals are to be emulated. After determining the position of the user equipment (110), the user equipment (110) translates the determined position to emulating navigation signals using a parameter derived from each of the respective selected satellites. The user equipment (110) transmits, to the navigator device (104), the emulated navigation signals. The emulated navigation signals enable the navigator device to determine the location of the navigator device (104).

Abstract: A network node assigns resources for use in wireless communication based on priority. The network node receives, from a wireless communication device, a service request message that requests connection of a communication session. The network node determines a priority level for the requested communication session. The priority level comprises a cellular layer admission priority of whether the network node can preempt cellular resources of an existing communication session in order to admit the requested communication session on the cellular layer, and a device-to-device (D2D) layer admission priority of whether the network node can preempt D2D resources of an existing communication session in order to admit the requested communication session on the D2D layer. The network node assigns resources based at least in part on the priority level. The resources are used for D2D communication or cellular communication.

Abstract: There is provided cluster head selection in a communications network. A respective beacon signal is by a wireless device received from each one of at least one further wireless device. Each beacon signal comprises a cluster head capability metric. Each of the received cluster head capability metrics is compared to at least one qualifying criterion. One of the at least one further wireless devices is selected as the cluster head of the wireless device based on the comparison.

Abstract: A method and a radio node (110) for managing resources for Device-to-Device discovery in an ad-hoc radio communication network are disclosed. The radio node (110) measures, on an amount of resources, received power to obtain values of received power. The values of received power include a respective value of received power for each resource of the amount of resources. The received power includes power of any existing beacon signals received from one or more of the further radio nodes (120, 130, 140).The radio node (110) selects at least one resource out of the amount of resources. The respective value of received power for the selected at least one resource is among the least of the obtained respective values of received power. The radio node (110) broadcasts, to the further radio nodes (120, 130, 140), a beacon signal on the selected at least one resource, wherein the beacon signal includes one or more of the values of received power. Elected for publication: FIG.

Abstract: A method and a radio node (110) for managing resources for D2D discovery in an ad-hoc radio communication munication network (100). The radio node (110) receives beacon signals from a number of further radio nodes (120, 130, 140). A respective beacon signal includes values indicating power received at the respective further radio node (120, 130, 140) for each resource of the amount of resources. The radio node (110) calculates, for each respective further radio node (120, 130, 140), values of SINR based on the values indicating power received at the respective further radio node (120, 130, 140). The radio node (110) selects at least one resource out of the amount of resources to increase number of discovering further radio nodes (120, 30, 140) and/or to increase average SINRover the further radio nodes (120, 130, 40). The radio node (110) broadcasts a further beacon signal on the selected at least one resource.

Abstract: A radio frequency communication device (100) comprising a radio frequency communications interface (130) and a controller (110), wherein said controller (110) is configured to establish network communication with a network node (310) and to establish device-to-device communication with a second radio frequency communication device (325) via said radio frequency communication interface (130). The controller is further configured to determine whether there is to be performed a simultaneous transmission comprising a network transmission over said network communication with said network node (310) and a D2D transmission over said device-to-device communication with said second radio frequency communication device (325); determine if there is a transmission problem related to said simultaneous transmission; and if so determine a mitigation technique; and perform said network transmission and said D2D transmission according to said mitigation technique to mitigate said transmission problem.

Abstract: A network node (310) comprising a radio frequency communications interface (230) and a controller (210), said network node (310) being configured to service at least one first radio frequency communication device (320) being configured for both network communication and for device-to-device communication with a second radio frequency communication device (325), wherein said controller (210) is configured to determine if a restriction of a scheduling policy is necessary for said first radio frequency communication device (320), select a scheduling policy accordingly. The controller is further configured to allocate communication resources according to said selected scheduling policy to said first radio frequency communication device (320).

Abstract: A radio frequency communication device (100, 320) comprising a radio frequency communications interface (130) and a controller (110), wherein said controller (110) is configured to: establish network communication with a network node (200, 310) and to establish device-to-device communication with a second radio frequency communication device (325) via said radio frequency communication interface (130).

Abstract: According to the teachings herein, a wireless device that is a candidate for operating in the cooperative positioning advantageously activates that mode in response to detecting a warning situation. In some embodiments, the detection and/or activation operations are autonomously undertaken by the wireless device. In other embodiments, the wireless communication network provides warning situation detection and/or control of the cooperative positioning mode. More generally, the wireless communication network maintains a database identifying those wireless devices within a given service area that are cooperative positioning mode candidates—e.g., the devices having D2D communication capability and operational configurations that allow such operation. By the network providing such information in advance of a warning situation, the candidate devices have the information needed to efficiently discover or otherwise identify other such candidates.

Abstract: A method, User Equipment (UE), and network node in an ad-hoc network. The UE determines a node in the ad-hoc network that is able to provide a reference signal comprising a pattern that can be used for synchronization purposes when the UE is in DRX mode in the ad-hoc network. The node is determined by requesting the node to indicate whether the node is able to provide the reference signal, and receiving an accept signal or message from the node. The UE then receives the reference signal from the determined node, enters DRX mode, and uses the received reference signal to maintain synchronization while in the DRX mode.

Abstract: The present invention relates to methods and arrangements for resolving radio resource conflicts occurring in radio networks supporting both local ad-hoc communication and cellular communication. The conflicts are resolved by informing the cellular network about radio resource management restrictions due to the local ad-hoc communication needs and resources that are reserved for local ad-hoc communications.

Abstract: A radio base station generates a congestion status flag, based on measured resource usage in its cell, and based on performance of sessions in the cell. The flag may be a one bit, or a small number of bits, indicating whether the base station is congested. The flag can be sent to neighboring radio base stations, for use in determining whether to perform handovers to that radio base station. The flag generated in a radio base station, and the flags generated in neighboring radio base stations, can also be sent to user equipment in a cell.

Abstract: The invention relates to a method for measuring signal interference from an interfering transceiver node of a mobile communications network to a user equipment served by a serving transceiver node. The interfering transceiver node uses a plurality of defined radiation patterns for signal transmission, wherein a transmission of a sequence of the defined radiation patterns by the interfering transceiver node is triggered. Furthermore, signal measurements of the signal transmitted by the interfering transceiver node that uses the sequence of the defined radiation patterns are triggered at the user equipment and an interference level of the signals received at the user equipment is estimated from the interfering transceiver node in dependence on the sequence of the defined radiation patterns, wherein the interference level is estimated based on the triggered signal measurements received from the user equipment.

Abstract: A method and apparatus related to a first radio network node serving a first UE in a first mobile radio network for enabling a D2D communication with a second UE served by a second radio network node in a second radio network. The first radio network node establishes a connection with the second radio network node. The first UE (230) requests to the first radio network node to enable a communication with the second user equipment (290). The first radio network sends a first message comprising information related to the first UE (230) to the second radio network node (280) for configuration of the second UE (290). The first radio network node receives a second message for configuration of the first UE (230) and sends to the first UE (230) a third message related to the second UE.

Abstract: The present invention relates to methods and arrangements for resolving radio resource conflicts occurring in radio networks supporting both local ad-hoc communication and cellular communication. The conflicts are resolved by informing the cellular network about radio resource management restrictions due to the local ad-hoc communication needs and resources that are reserved for local ad-hoc communications.

Abstract: A method performed by a first User Equipment, UE, for enabling Device-to-Device, D2D, communication with a second UE in a radio communications network is provided. The first UE is configured to perform the D2D communication on downlink cellular resources in the radio communications network. The first UE measures received signal strengths of Reference Signals, RS, on downlink cellular resources from one or more network nodes in the radio communications network. The first UE then determines a first subset of downlink cellular resources for which the measured received signal strength of RS is above or equal to a threshold value. Also, the network node transmits information indicating the determined first subset of downlink cellular resources to a network node serving the first UE in the radio communications network in order to enable the D2D communication.

Abstract: Embodiments herein relate to a method in a first network node (16) for enabling device to device, D2D, communication between a first device (10) and a second device (13). The first device (10) is served by a first public land mobile network comprising the first network node (16) and the second device (13) is served by a second public land mobile network. The first network node (16) receives, from the second device (13), via the second public land mobile network, or from the first device (10), a request for permission for the second device (13) of roaming to the first public land mobile network enabling the D2D communication. The request requests access to a resource controlled by the first network node (16) of the first public land mobile network. The first net work node (16) decides whether to grant the request based on a position related information of the second device (13) and/or the first device (10).

Abstract: In device-to-device (D2D) communications underlying a cellular telecommunication infrastructure, a neighbor discovery of D2D-enabled user equipments (UEs) is performed on the basis of a Cell Radio Network Temporary Identifier, CRNTI. Hereby it is made possible to provide for D2D neighbor discovery for a relatively large number of D2D-enabled user equipments (UEs).

Abstract: A device-to-device communication cluster of a plurality of communication devices comprises the first communication device and one or more other communication devices and a specific one of the plurality of communication devices performs a network control signal gateway function for the device-to-device communication cluster. The network control signal gateway function comprises receiving downlink control signals from a network node of the cellular network, transmitting uplink control signals to the network node of the cellular network, and operating control signaling within the device-to-device communication cluster in association with the downlink and uplink control signals.