Abstract: In wireless device-to-device, D2D, communication data are transmitted directly from a first wireless device to a second wireless device. In response to the direct transmission of data, the second wireless device transmits feedback data indicating at least one quality of the data received in the second wireless device. More precisely, according to the invention, a radio access network node controls the direct transmission of data by means of downlink control information to the first and second wireless devices, and the feedback data are received in the radio access network node. The radio access network node preferably also uses the received feedback to control at least one of the first and second wireless devices.

Abstract: Method for D2D communication in a wireless device comprising receiving a D2D communication from another wireless device, the D2D communication comprising a first detection sequence of a plurality of detection sequences. Each detection sequence is associated with a respective different radio access technology or service type so that the first detection sequence identifies a radio access technology or service type associated with the D2D communication. The method also comprises selecting a transmission procedure for a D2D transmission from the second wireless device based on the first detection sequence, and performing the D2D transmission using the selected transmission procedure.

Abstract: A method of indicating resources in periodically occurring resource pools according to some embodiments includes, in a radio communication device, transmitting a scheduling assignment message on a shared medium during a predefined period that is defined for the transmission of scheduling assignment messages, wherein the scheduling assignment message indicates resources in a plurality of the periodically occurring resource pools for transmission of a data message; and transmitting the data message in the identified resources in the plurality of the periodically occurring resource pools. Related radio communication devices are also disclosed.

Abstract: According to some embodiments of inventive concepts, a method may be provided to operate a UE providing sidelink communications with other wireless devices. The method may include scheduling a first transmission from the UE, wherein the first transmission has a first priority. The method may also include scheduling a second transmission from the UE, wherein the second transmission has a second priority, wherein the first priority is greater than the second priority, and wherein the first and second transmissions are scheduled for transmission during a time interval. The method may further include transmitting the first transmission during the time interval, and responsive to determining a violation of a timing limit corresponding to scheduling the first and second transmissions during the time interval and responsive to the first priority being greater than the second priority, dropping transmitting the second transmission during the time interval.

Abstract: A method by a user equipment, UE, that includes acquiring information about an allowed time interval at which resources in a pool of resources can be reserved for future transmission by the UE, and sensing using the resources in the pool and at a first time interval determined based on the allowed time interval for the pool. UEs that perform operations corresponding to the method are disclosed.

Abstract: The disclosure relates to methods of operating a first wireless terminal providing network communication with a radio access network using a network carrier and providing sidelink communications using a sidelink carrier. A scheduling grant may be received from the radio access network using a network subframe of the network carrier. First and second time measurements relating to the sidelink carrier and the network carrier respectively may be obtained. Responsive to the scheduling grant, the first time measurement, and the second time measurement, a communication sidelink subframe of the sidelink carrier may be selected to be used for a sidelink communication.

Abstract: Methods and apparatus for resource allocation in a D2D network (100) are disclosed for reducing resource collisions among wireless devices (200) engaged in device-to-device (D2D) communications. In D2D communications, each wireless device (200) selects a radio resource for signal transmissions and retains the selected resource until a reselection becomes necessary. During the transmission, the wireless device (200) detects a triggering condition for resource reselection. Responsive to the triggering condition, the wireless device (200) performs resource reselection according to a reselection rule that is designed to reduce resource collisions among wireless devices (200).

Abstract: A method includes receiving a first transmission; assessing a channel property of the first transmission; receiving a second transmission; determining if a corresponding channel property of the second transmission can be estimated based on the channel property of the first transmission; in response to determining that the corresponding channel property of the second transmission can be estimated based on the channel property of the first transmission by determining that transmission resources used for the first and second transmissions are sufficiently close in time and/or frequency domains that a channel property is common to both transmissions, estimating the corresponding channel property of the second transmission based on the channel property of the first transmission; and detecting the second transmission using the estimated corresponding channel property of the second transmission.

Abstract: A device operates in a communications network by obtaining an adjustment term based on communications from the communications network and setting a time reference for the device based on the obtained adjustment term. The adjustment term is such that the set time reference for the device is common to at least one other device in communication with the device. The device further operates by communicating with the at least one other device in device-to-device communication, based on the common set time reference.

Abstract: A method by a user equipment, UE, that includes acquiring information about an allowed time interval at which resources in a pool of resources can be reserved for future transmission by the UE, and sensing using the resources in the pool and at a first time interval determined based on the allowed time interval for the pool. UEs that perform operations corresponding to the method are disclosed.

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 present disclosure pertains to a transmitter terminal (10), the transmitter terminal (10) being adapted for D2D communication and/or transmission. The transmitter terminal (10) is further being adapted for transmitting multiplexed control information and data, wherein the control information and data are multiplexed based on a mapping. The present disclosure also pertains to related devices and methods.

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: The disclosure relates to methods of operating a first wireless terminal providing network communication with a radio access network using a network carrier and providing sidelink communications using a sidelink carrier. A scheduling grant may be received from the radio access network using a network subframe of the network carrier. First and second time measurements relating to the sidelink carrier and the network carrier respectively may be obtained. Responsive to the scheduling grant, the first time measurement, and the second time measurement, a communication sidelink subframe of the sidelink carrier may be selected to be used for a sidelink communication.

Abstract: According to some embodiments, a method of device-to-device (D2D) communication comprises obtaining a division of radio resources. The division of radio resources comprises a first plurality of pools of a first periodicity. Each of the first plurality of pools comprises a set of radio resources and a plurality of patterns spanning the set of radio resources. The division of radio resources also comprises a division of the first plurality of pools into a second plurality of pools of a second periodicity greater than the first periodicity. Each of the second plurality of pools comprises a plurality of patterns comprising a union of the plurality of patterns of each pool of the first plurality pools that are included within the pool of the second plurality of pools. The method further comprises determining a pattern from one of the first or second plurality of pools, and using it to transmit the message.

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: A transmitting UE schedules radio frequency resources for use in a data transmission. The transmitting UE determines the transmission bandwidth, subject to certain restrictions, such as allowed DFT sizes for the UE for a data transmission. The determination may be performed through autonomous resource selection operations and/or may be performed using information received through signaling received from the network node as part of a scheduling grant. The UE further determines the ALLOCATED BANDWIDTH. The ALLOCATED BANDWIDTH can be determined based on the TRANSMISSION BANDWIDTH, which has been determined, using a defined rule. Furthermore, the UE generates and transmits toward a receiving UE a scheduling assignment (SA) that indicates the number or the set of subchannels that are within, and conform to, the ALLOCATED BANDWIDTH which was determined. The UE can then perform the data transmission using the SA indicated number or set of subchannels.

Abstract: A method includes receiving a first transmission; assessing a channel property of the first transmission; receiving a second transmission; determining if a corresponding channel property of the second transmission can be estimated based on the channel property of the first transmission; in response to determining that the corresponding channel property of the second transmission can be estimated based on the channel property of the first transmission by determining that transmission resources used for the first and second transmissions are sufficiently close in time and/or frequency domains that a channel property is common to both transmissions, estimating the corresponding channel property of the second transmission based on the channel property of the first transmission; and detecting the second transmission using the estimated corresponding channel property of the second transmission.

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.