Abstract: Embodiments herein relate to a method performed by a UE (10) for handling communication in a wireless communication network. The UE (10) handles one or more data units based on a communication range requirement of one or more services, wherein the one or more data units are associated with the one or more services, by using a mapping of an indication of a communication range requirement and a radio resource for communication.

Abstract: A method in a first terminal device for facilitating direct communication with a second terminal device. The method comprises transmitting to the second terminal device a Modulation and Coding Scheme (MCS) index, based on which the second terminal device can obtain a modulation order and a Transport Block Size (TBS) in accordance with a first mapping or a second mapping between MCS indices on one hand and modulation orders and TBSs on the other. The MCS index is determined by the first terminal device by selectively applying the first or second mapping.

Abstract: Methods, a user equipment (UE) and a base station are disclosed for sidelink identification. According to an embodiment, a first UE participates in an identity (ID) determination procedure such that a sidelink ID is determined for a sidelink between the first UE and a second UE. The sidelink ID comprises a full ID for identifying one of the first and second UEs and a short ID for identifying the other of the first and second UEs.

Abstract: A radio device receives first sidelink control information from a further radio device. Based on assistance information stored in the radio device and the received first sidelink control information, the radio device determines a configuration for transmission of second sidelink control information. Based on the determined configuration for transmission of the second sidelink control information, the radio device receives the second sidelink control information from the further radio device. Based on the received second sidelink control information, the radio device receives a sidelink radio transmission from the further radio device.

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: Exemplary embodiments include methods for receiving device-to-device (D2D) data transmissions from a second user equipment (UE) in a radio access network (RAN). Embodiments can include receiving, from the second UE, a first data transmission. Embodiments can also include determining whether the first data transmission was correctly received. Embodiments can also include determining a first set of frequency-domain parameters to use for generating a time-domain sequence. In some embodiments, the set of frequency-domain parameters can comprise a basic frequency-domain sequence, a width (X), and an offset (Y). Exemplary embodiments can also include transmitting, to the second UE using a time-domain sequence generated from the first set of frequency-domain parameters, a first hybrid ARQ (HARQ) indicator of whether the first data transmission was correctly received.

Abstract: Disclosed is a method performed by a first wireless device (110) for device to device communication with a second wireless device (120). The method comprises determining a set of wireless communication resources to reserve for a transmission of data from the second wireless device (120) to the first wireless device (110), and reserving the determined set of wireless communication resources. The method further comprises informing the second wireless device (120) of the set of wireless communication resources determined for the transmission of data from the second wireless device (120) to the first wireless device (110), and receiving, from the second wireless device (120), data transmitted on any of the reserved set of wireless communication resources, or information that the second wireless device (120) is not going to use the reserved set of wireless communication resources.

Abstract: A method of operating a user equipment, UE, for device-to-device, D2D, transmission of a channel state information, CSI, report and/or a CSI reference signal, CSI-RS, is provided. The method may include identifying a CSI selection window containing candidate resources for use in D2D transmission of the CSI report and/or CSI-RS. The method may include identifying a data selection window containing candidate resources for use in D2D transmission of data and which at least partially overlaps a region of the CSI selection window. The method may include controlling transmission of data and the CSI report and/or CSI-RS to use at least one resource that is selected within the overlapping region of the CSI selection window and the data selection window.

Abstract: A wireless device configured for transmission using a transmission scheme other than a multi-antenna transmission scheme is provided. The wireless device includes at least one receiver configured to receive a transmission of a multi-antenna transmission scheme, and processing circuitry configured to perform at least one of a channel estimation function and measurement function using the received transmission of the multi-antenna transmission scheme, the multi-antenna transmission scheme remaining transparent to the wireless device.

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 technique for transmitting and receiving a sequence of symbols on a sidelink, SL, in a transmission time interval, TTI, is described. As to a method aspect of the technique, an automatic gain control, AGC, is performed for the SL based on at least one first symbol of the SL in the TTI. Based on the AGC, SL control information, SCI, encoded in at least one second symbol of the SL in the TTI is received. Data encoded in at least one third symbol of the SL in the TTI is received based on the SCI.

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 first radio device may send SL control information to a second radio device. The SL control information indicates at least one radio resource for transmission of a reference signal from the first radio device. The second radio device receives the reference signal. Further, the second radio device may forward the received sidelink control information to one or more other radio devices. Based on the received reference signal, the second radio device estimates quality of a radio channel between the first radio device and the second radio device. The estimated quality of the radio channel, may be used to control an SL radio transmission between the first radio device and the second radio device.

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: A method and wireless device for determining a time interval, T2, for selecting a time-frequency resource are disclosed. According to one aspect, a method includes determining the time interval based on at least one parameter serving as a proxy indicative of a likelihood of collision. In some embodiments, at least one of the at least one parameter is a priority level indication, such that a higher priority transmission results in a lower value of T2.

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 radio device receives a first message from a further radio device. The first message indicates an intention of the further radio device to perform a device-to-device radio transmission on a set of radio resources. The radio device determines a status of the set of radio resources. In response to the first message, the radio device sends a second message comprising an indicator which indicates the determined status of the set of radio resources in terms of at least three levels.

Abstract: A radio terminal (110) determines selection information, e.g., by receiving the selection information from another radio terminal (110?) or a base station (100) of a cellular radio network. Depending on the selection information, the radio terminal (110) selects a time reference type from a plurality of time reference types. Based on the selected time reference type, the radio terminal (110) receives signals (204, 208) from a further radio terminal (110?).

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 radio device receives first sidelink control information from a further radio device. Based on assistance information stored in the radio device and the received first sidelink control information, the radio device determines a configuration for transmission of second sidelink control information. Based on the determined configuration for transmission of the second sidelink control information, the radio device receives the second sidelink control information from the further radio device. Based on the received second sidelink control information, the radio device receives a sidelink radio transmission from the further radio device.