Abstract: Embodiments herein relate to e.g. a method performed by a user equipment, UE, for handling communication in a wireless communication network. The UE (10) triggers a recovery procedure upon fulfilling one or more conditions, wherein at least one condition, of the one or more conditions, is related to a QoS requirement, or a level of a QoS requirement of a service used by the UE.

Abstract: Various embodiments of the present disclosure provide a method for platoon-based communications. The method which may be performed by a first network node comprises determining, at a radio layer, a group header of a device group which comprises at least a terminal device. The group header comprises at least one of: an application layer group header being responsible for management of the device group at an application layer, and a radio layer group header being responsible for management of the device group at the radio layer. According to the embodiments of the present disclosure, a radio layer group header may be appointed for a device group so that communication management on the device group can be performed at the radio level.

Abstract: A wireless device (300, 400), e.g., a wireless communication device (e.g., a UE) or a network node (e.g., an eNB) having a Medium Access Control (MAC) layer (410) and a physical (PHY) layer (430) configured to send/resend transmissions is presented herein. The MAC layer (410) sends transmissions to the PHY layer (430) for transmitting, by the PHY layer (430), to a remote wireless device (300, 400). The PHY layer (430) receives the transmission from the MAC layer (410), and attempts to send the transmission. The PHY layer (430) further indicates to the MAC layer (410) whether the attempt to send the transmission, by the PHY layer (430), was successful. Responsive to the indication, the MAC layer (410) determines whether the attempt, by the PHY layer (430), to send the transmission was successful. The MAC layer (410) then selectively indicates to the PHY layer (430) whether to attempt to resend the transmission responsive to the determination.

Abstract: A method by a wireless device (110) includes sending, to a network node (160) having an associated coverage area, a request for a sidelink (SL) resource pool configuration for a V2X application associated with the wireless device (110). The request includes one or more geographical area identifiers associated with one or more respective SL resource pool configurations. The method further includes receiving, in response to the request, a SL resource pool configuration from the network node (160).

Abstract: A method by a network node controls connectivity of UEs by identifying a group of UEs for communication with an application controlling parameters used by the UEs for operation in a vehicle platoon. The method controls connectivity for a UE in the group with a RAN node responsive to characteristics of the other UEs in the group. For each of the UEs the characteristic relates to functional operation of the UE with the application. Another method by an application server identifies the group of UEs, and identifies a characteristic of each of the UEs with the application. A message identifying the group of UEs and their characteristics is communicated to a network node for controlling connectivity for individual UEs in the group with a RAN node responsive to the characteristics of the other UEs in the group.

Abstract: The present disclosure provides a method for a communication system with group service. The method includes: creating an access stratum group including at least one terminal device. The at least one terminal device is included in a same application group for supporting an application relating to the at least one terminal device. It is an advantage that the terminal devices engaged in the same application group could be handled more consistently in an access stratum layer in the communication system. The group service quality may be further improved.

Abstract: Methods of operating user equipment for device-to-device, D2D, communications are provided. Operations include transmitting a quality of service, QoS, flow establishment request, the flow establishment request indicating that the QoS flow is to be transmitted over a sidelink, responsive to a determination that a required QoS flow will be fulfilled, receiving a message indicating that a requested sidelink QoS flow will be supported and receiving mapping and configuration data corresponding to the sidelink QoS flow, and responsive to determining that the required QoS may not be fulfilled, receiving a message indicating that the requested sidelink QoS flow will not be established.

Abstract: A user equipment (105), UE, is configured for use in a wireless communication system (100). The UE (105) acknowledges one or more first commands received from an access node (110) by transmitting, to the access node (110), a first acknowledgment comprising a confirmation field set to a first value. After acknowledging the one or more first commands, the UE (105) acknowledges one or more second commands received from the access node (110) by selectively transmitting or refraining from transmitting, to the access node (110), a second acknowledgement comprising the confirmation field set to a second value depending respectively on whether or not the second value would be different from the first value.

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

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 is disclosed for operating a user equipment (UE) for device-to-device (D2D) communications. The method includes receiving booking information from another UE. The booking information identifying a resource that the other UE is booking to use for transmission by the other UE and further including priority information. The method further includes selectively transmitting preemption signaling based on whether the received priority information indicates lower priority than local priority information that is associated with a transmission to be scheduled by the UE. The preemption signaling indicates preemption of the UE to use the resource identified by the booking information. The method further includes scheduling the UE to transmit using the resource identified by the booking information.

Abstract: A method performed by a wireless device (110) includes determining that the wireless device has data to transmit in the sidelink, SL, buffer. A special scheduling request, SR, is transmitted using a SR resource to the network node to indicate that a SL resource allocation, SL RA, is needed. A grant is received from the network node for transmitting at least the data in the SL buffer. Based on the grant, at least the data in the SL buffer is transmitted.

Abstract: Methods and systems for autonomous sidelink resource allocation are provided. According to one aspect, a method performed by at least one wireless device for autonomous sidelink resource allocation comprises: at a first time, T1, transmitting a first control message announcing a first reservation of a set of radio resources for sidelink communication; at a second time, T2, transmitting a second control message announcing a second reservation of a set of radio resources for sidelink communication; and, at a third time, T3, performing a sidelink communication using the set of radio resources reserved by the second reservation. The second reservation may, for example, confirm the first reservation, cancel or partially cancel the first reservation, modify the first reservation, or completely change the first reservation.

Abstract: A method, system and apparatus are disclosed. A network node configured to communicate with a wireless device is provided. The network node configured to, and/or comprising a radio interface and/or comprising processing circuitry configured to receive a unicast request message from a wireless device where the unicast request message includes information associated with a request for a unicast connection, and determine whether to permit establishment of the requested unicast connection based at least in part on the information in the unicast request message.

Abstract: A user equipment, UE, receives radio resource control, RRC, signaling from a peer UE (14). The RRC signaling indicates radio layer parameters supported by the peer UE (14) or indicates whether radio layer parameters supported by the peer UE (14) are compatible with radio layer parameters required for a connection between the peer UE (14) and the UE. The UE determines whether or not to establish a connection towards the peer UE (14) based on the received RRC signaling.

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 technique for transmitting and receiving data (602) using a sidelink, SL, radio communication (604) between a first radio device (100) and a second radio device (200) is described. As to one method aspect of the technique, a scheduling assignment, SA (601), announcing a transmission of the data (602) for the second radio device (200) is broadcasted. The data is transmitted according to the SA (601) from the first radio device (100) in a unicast mode to the second radio device (200). Responsive to the data transmission, a control feedback (608) is received from the second radio device (200) in a unicast mode at the first radio device (100), wherein the control feedback (608) is received on a feedback radio resource (708) determined by at least one of the first radio device (100) and the second radio device (200).

Abstract: The present application generally relates to wireless communication technology. More particularly, it relates to a method and apparatus for controlling sidelink (SL) Quality of Service (QoS). According to one or more embodiments, a method for controlling sidelink (SL) Quality of Service (QoS) comprising the following steps carried out at a User Equipment (UE): a) generating QoS requirement from characteristics for one or more packets to be transmitted via a sidelink; b) determining bearer configuration corresponding to the QoS requirement; and c) performing SL transmission on the basis of the bearer configuration.

Abstract: Embodiments of the present disclosure provide methods, apparatus and computer program products for network selection. A method implemented at a terminal device comprises obtaining an indication of a first carrier that provides cross-carrier configuration of a second carrier for device to device, D2D, communication; and selecting, from a list of authorized networks, a serving network based on the second carrier and the obtained indication. With embodiments of the disclosure, support for device to device communication can be improved.