Abstract: Systems and methods of handling collisions between multiple semi-persistent grants are presented herein. In one exemplary embodiment, a method performed by a wireless device in a wireless communications system comprises obtaining selection criteria that is predefined or configured as being the criteria by which both the wireless device and a network node or another wireless device selects one of multiple activated semi-persistent configurations assigned to the wireless device responsive to determining that the multiple configurations have granted a same radio resource. Further, the method includes selecting one of the multiple configurations based on the selection criteria. Also, the method includes transmitting or receiving on that radio resource in accordance with the selected configuration.

Abstract: Embodiments herein relate to a method implemented by a wireless communication device (10). The wireless communication device (10) transmits data to a radio node (12) of a wireless communication network (1). The wireless communication device (10) monitors for a positive acknowledgement or a negative acknowledgement of the data from the radio node (12). The wireless communication device (10) retransmits the data to the radio node (12) when said monitoring indicates reception of a negative acknowledgement of the data. The wireless communication device (10) refrains from retransmitting the data to the radio node (12) when said monitoring indicates reception of a positive acknowledgement of the data. The wireless communication device (10) also refrains from retransmitting the data to the radio node (12) when said monitoring indicates neither reception of a positive acknowledgement of the data nor reception of a negative acknowledgement of the data.

Abstract: A user equipment (18) is configured for use in a wireless communication system (10). The user equipment (18) is configured to receive from radio network equipment (24) a command (32) with respect to an operating configuration (20). The operating configuration (20) specifies a set of transmission parameters for communication. The user equipment (18) is also configured to confirm receipt of the command (32) by setting the value of a confirmation field (36) in a message (34) and transmitting the message (34). In some embodiments, the confirmation field (36) is shared for confirming receipt of a number of different types of commands with respect to the operating configuration (20) that is greater than a number of possible values of the confirmation field (36).

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: There is provided a method in a wireless device for transmitting data on sidelink carriers. The method comprises: obtaining a threshold related to a data rate; determining one or more sidelink carriers based on the threshold; selecting one or more sidelink carriers from the determined one or more sidelinks carriers for data transmission; transmitting data using the one or more obtaining a threshold related to a data rate selected sidelink carriers. The data rate may correspond to a buffer status of the wireless device, a bit rate or a congestion measurement of the sidelink carriers. A wireless device for performing this method is also provided.

Abstract: There is provided a method, in a wireless device, for communicating with a network node using autonomous Uplink (UL) access. The method comprises: after sending a data transmission to a network node, starting a retransmission window associated with a feedback process of the data transmission, the retransmission window including a first timer; and in response to detecting an absence of a feedback signal during a time period given by the first timer, retransmitting the data after expiry of the first timer.

Abstract: According to some embodiments, a method of signalling capability information for use in a wireless device comprises obtaining capability information about a capability of the wireless device for performing simultaneous sidelink communication over multiple carriers of a radio band, and communicating the capability information to a network element. The capability information comprises a capability of the wireless device for simultaneously transmitting and/or receiving sidelink communication over multiple carriers of the radio band and/or a capability of the wireless device for simultaneously performing sidelink communication and non-sidelink communication over multiple carriers of the radio band.

Abstract: In one aspect of the teachings herein, a radio network node associated with a source cell provides sidelink configuration information to a wireless device to be handed over to a target cell. 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: 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: Embodiments of the present disclosure provide methods, apparatuses and computer programs for facilitating MBMS reception. There is provided a method performed by a network node. The method comprises obtaining, for a terminal device served by a PLMN, PLMN information related to one or more PLMNs and providing the PLMN information to the terminal device, which can prepare for reception of MBMS from a PLMN other than the serving PLMN among the one or more PLMNs based on the PLMN information. The one or more PLMNs comprise at least one PLMN other than the PLMN serving the terminal device. With embodiments of the present disclosure, performance of MBMS reception can be improved.

Abstract: According to some embodiments, a method in a first wireless device of relaying data from a second wireless device to a wireless communication network comprises: obtaining data transmission pattern information associated with data to be relayed from the second wireless device to the wireless communication network; requesting resources from the wireless communication network according to the data transmission pattern information; receiving an indication of resources from the wireless communication network; receiving the data from the second wireless device; and transmitting the data to the wireless communication network using the indicated resources.

Abstract: In accordance with certain embodiments, there is disclosed herein a method for decoding a received message. The method comprises determining one or more non-reserved group IDs associated with a first wireless device. The method additionally includes participating in a communication session based on a first group ID of the one or more non-reserved group IDs associated with the first wireless device. The method further includes receiving a first message from a second wireless device. The first message comprises a second group ID. The second group ID is not among the one or more non-reserved group IDs associated to with the first wireless device. The method also comprises determining the second group ID is a reserved group ID. The method additional comprises decoding the first message based on the second group ID.

Abstract: Embodiments herein relate e.g. to a method performed by a radio network node (12) for handling communication between wireless devices over a sidelink in a wireless communication network. The radio network node receives from a wireless device (10) of the wireless devices, an indication in a buffer status report, wherein the indication indicates one or more QoS requirements or characteristics of a packet in a buffer associated to the buffer status report, wherein the one or more QoS requirements or characteristics comprise at least one of: reliability, latency, and data rate; and wherein the indication is associated with a logical channel. The radio network node handles the communication of the wireless device taking the received indication into account.

Abstract: Embodiments herein relate e.g. to a method performed by a wireless device (10) for handling communication in a wireless communication network. The wireless device (10) determines sets of values of transmission parameters based on two or more conditions, wherein the transmission parameters are related to wireless devices. The wireless device (10) determines whether there is one or more overlapping values of the sets of values. When determined that there is one or more overlapping values, the wireless device (10) selects a value of the one or more overlapping values; and when determined that there is no overlapping values, the wireless device (10) selects a value from the sets of values of transmission parameters based on a criteria.

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.