Abstract: In one aspect, a RAN node determines UE candidate sets for MUST scheduling where each set includes near UE and far UE MUST positions. The node orders the UE candidate sets according to a scheduling performance metric for each UE candidate set, evaluated with respect to the entire band. The node resolves MUST pairing conflicts by excluding, from the UE candidate sets, any UE candidate set that includes a UE that (a) is also present in a UE candidate set having a better scheduling performance metric and (b) has an inconsistent MUST position for interference cancellation with respect to the better UE candidate set, to obtain a reduced set of UE candidate sets. The node performs subband scheduling on each subband, using either MUST or OMA transmission scheduling for each subband. The reduced set is used for MUST scheduling. MUST/OMA subband conflicts may also be resolved.

Abstract: Method and apparatus for determining a modulation scheme in direct link-based communication. A method implemented in a transmitting (TX) terminal device is provided. According to the method, a link quality of a direct link for transmission of information from the TX terminal device to one or more receiving (RX) terminal devices is determined based on one or more of the following: a context of the TX terminal device, or one or more reference signal received qualities (RSRQs) from the one or more RX terminal devices. A modulation scheme for modulating the information is determined based on the link quality. The information is modulated with the determined modulation scheme and the modulated information is transmitted to the one or more RX terminal devices via the direct link.

Abstract: A communication method and a communications apparatus are applied to discrete narrowband communication information. In a communication method, comprising: sending, by a network device, first indication information to a terminal, wherein the first indication information comprises a frequency channel number of a start sub-band in all discrete sub-bands of a serving cell in which the terminal is currently located, a bitmap representing whether each sub-band in a frequency band belongs to the serving cell, and a frequency spacing between sub-bands in the frequency band, wherein the frequency band is a frequency band to which all the discrete sub-bands of the serving cell belong; and sending, by the network device, second indication information to the terminal, wherein the second indication information is used to indicate a sub-band available to the terminal in all the discrete sub-bands of the serving cell.

Abstract: The present disclosure relates to a method performed by a BS for facilitating IC at a UE and an associated BS. The method includes predefining one or more sets of transmission parameters, where one or more of the transmission parameters in the one or more sets are constrained to take values from respective reduced sets of values out of the values available for the respective one or more transmission parameters, each set of the one or more sets of transmission parameters being identifiable by a unique indication. The method further includes configuring a transmission of the BS, which is to interfere downlink transmissions to the UE from a serving BS of the UE, by using one of the predefined one or more sets of transmission parameters. The present disclosure also relates to a method in a UE for IC and an associated UE.

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: The present disclosure relates to a method performed by a BS for facilitating IC at a UE and an associated BS. The method includes predefining one or more sets of transmission parameters, where one or more of the transmission parameters in the one or more sets are constrained to take values from respective reduced sets of values out of the values available for the respective one or more transmission parameters, each set of the one or more sets of transmission parameters being identifiable by a unique indication. The method further includes configuring a transmission of the BS, which is to interfere downlink transmissions to the UE from a serving BS of the UE, by using one of the predefined one or more sets of transmission parameters. The present disclosure also relates to a method in a UE for IC and an associated UE.

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 timing advance determining method and a device are provided. In the method, a network device determines, based on a correspondence between a parameter set and a TA granularity, TA information used by a terminal on an occupied frequency domain resource, where the parameter set includes a subcarrier spacing and a cyclic prefix type of a symbol; the network device sends the TA information to the terminal; and the terminal determines, based on the correspondence between a parameter set and a TA granularity, a TA granularity corresponding to the frequency domain resource occupied by the terminal, and determines, based on the TA granularity and the TA information, a TA value used by the terminal on the occupied frequency domain resource.

Abstract: The present disclosure provides a method in a network device for geo-based transmission. The network device comprises at least one Transmission/Reception Point (TRP) each configured with at least one beam. The method comprises: obtaining a target geographical area of a data packet; selecting , from the at least one TRP and/or the at least one beam, one or more TRPs and/or beams for broadcasting the data packet based on the target geographical area; and broadcasting the data packet via the selected one or more TRPs and/or beams.

Abstract: Embodiments herein relate to a method performed by a radio network node (12) for facilitating beam selection for wireless devices in a wireless communications network. The radio network node obtains a first parameter indicating a mapping between an uplink signal, US, sequence and a beam-formed reference signal, RS, which mapping is for two or more wireless devices that are configured to perform measurements on beam-formed reference signals and to use US sequences to report selected beams, and a second parameter distinguishing the US sequence being reported from one wireless device from the US sequence being reported from one or more other wireless devices. The radio network node further receives an indication of the US sequence transmitted from one of the two or more wireless devices (10); and identifies the beam for the wireless device based on the received indication and the first and second parameters.

Abstract: Examples communication methods and communications apparatus are described. In one example method, a base station sends a first synchronization signal block, where the first synchronization signal (SS) block includes a primary SS, a secondary SS, and information carried on a physical broadcast channel (PBCH). In addition, the base station sends a second SS block, where the second SS block includes a primary SS or includes a primary SS and a secondary SS, and does not include information carried on the PBCH. The first SS block is used by a terminal to access the base station. The second SS block is used to perform time and frequency synchronization after the terminal accesses the base station.

Abstract: Embodiments of the present disclosure provide a method, apparatus and computer program product for sidelink transmission control. The method implemented at a first user equipment which supports a first radio access technology comprises: determining a sidelink transmission mode for transmitting, wherein the sidelink transmission mode is one of a first mode corresponding to the first radio access technology and a second mode corresponding to a second radio access technology; and transmitting a sidelink signal according to the sidelink transmission mode using a sidelink resource configured by a network node which serves the first user equipment.

Abstract: Embodiments of the present disclosure propose a method and an apparatus for facilitating mobility in an ultra-dense network, e.g. mmW network. Particularly, there is provided a method at a network node for facilitating mobility in a communications network. The method comprises transmitting duplicates of data received from an upper level network node and directed to a terminal device served by a first lower level network node to the first lower level network node and a second lower level network node for buffering. The method also comprises receiving a status report from the first lower level network node indicating that the data is successfully received at the terminal device. The method further comprises generating a data discarding command according to the status report and signaling the data discarding command to the second lower level network node so that the duplicate of the data buffered at the second lower level network node is discarded according to the data discarding command.

Abstract: The present disclosure relates to methods and arrangements for performing wireless device assisted handover form a source access node to a target access node. Performed in a wireless device, the method comprises performing (S31) one or more mobility measurements for corresponding candidate radio links and transmitting (S33) a first radio link measurement report, comprising the mobility measurements for a recommended target link, using a first radio link reporting mechanism to the source access node. When communication over a target link is not initiated under a predetermined condition, the method comprises transmitting a second radio link measurement report, for the one or more candidate radio links, on the recommended target link using a second radio link reporting mechanism different from the first radio link reporting mechanism.

Abstract: The present disclosure relates to methods and arrangements for performing wireless device assisted handover form a source access node to a target access node. Performed in a wireless device, the disclosure presents a method for performing wireless device assisted handover from a source access node to a target access node in a wireless network. The methed comprises performing (S31) one or more mobility measurements for corresponding candidate radio links and selecting (S32), from the one or more candidate radio links, an initial target link based on the performed one or more mobility measurements. A first radio link measurement report, based on the one or more mobility measurements, identifying the initial target link, is transmitted (S33) to the source target node using a first radio link reporting mechanism whereupon communication over the initial target link is initiated (S34).

Abstract: A wireless device in a wireless communication system is configured to perform measurements on a set of candidate links for supporting a network node in the system to make a decision as to which of the candidate links is to be a target link for a link switch. The wireless device reports (e.g., at the physical layer) measured candidate links one link subset at a time in order of the wireless device's preference for the target link, until the wireless device receives a target indication signal indicating which of the candidate links in the set is to be the target link. Any given link subset reports one or more candidate links which the wireless device has measured for the decision. Responsive to receiving the target indication signal, the wireless device performs the link switch to the indicated target link.

Abstract: Embodiments of this application provide a retransmission method and a device. After receiving feedback information transmitted by a receiving device based on first information indicated by a retransmission mode, a transmitting device uses second information indicated by the retransmission mode to generate data retransmitted this time, and transmits the data to the receiving device based on third information indicated by the retransmission mode. In this process, a plurality of retransmission modes are set, so that when different retransmission modes are used, the first information used for transmitting the feedback information, the second information used for generating the retransmitted data, or the third information used for transmitting the retransmitted data is different. Therefore, objectives of reducing HARQ overheads and ensuring transmission efficiency, reliability, and latency performance of a wireless communications system are achieved.

Abstract: The present invention relates to handling data transfer during handover, whereby a terminal device is initially connected to a serving access node and a handover is performed to connect the terminal device to a target access node. The improved handling of data transfer is achieved by upon making a handover decision, performing data rerouting to the target access node while continuing to exchange data between the terminal device and the serving access node, and stopping the data exchange between the terminal device and the serving access node in response to an indicator indicating that the target access node is ready to proceed with the handover.

Abstract: The present disclosure relates to methods and arrangements for configuring radio link measurement reporting in a wireless communication system supporting a plurality of radio link reporting mechanisms. Performed in an access node, the method comprises obtaining (S21) a plurality of radio link reporting configurations, each radio link reporting configuration specifying one or more of the supported radio link reporting mechanisms and wherein at least one of the plurality of radio link reporting configurations specifies a combination of a first and a second radio link reporting mechanism being mutually different. The method further comprises selecting (S22) one radio link reporting configuration from the plurality of obtained configurations; and transmitting (S23) information about the selected radio link reporting configuration to a wireless device.

Abstract: The present disclosure relates to methods and arrangements for performing wireless device assisted handover form a source access node to a target access node. Performed in a wireless device, a method comprises performing (S31) one or more mobility measurements for corresponding candidate radio links and selecting (S32), from the one or more candidate radio links, an initial target link based on the performed one or more mobility measurements. A first radio link measurement report based on the one or more mobility measurements, identifying the initial target link is transmitted (S33) to a target node providing the initial target link, using a first radio link reporting mechanism. A second radio link measurement report for the one or more candidate radio links and based on the same one or more mobility measurements, is transmitted (S34) to the source access node using a second radio link measurement report different from the first radio link reporting mechanism.