Abstract: There is disclosed a method for operating a network node in a wireless communication network, the network node being connected to a terminal via a first cell group. The method comprises receiving, by the network node, information indicating an activation status of the terminal regarding a second cell group, wherein the method further comprises transmitting, by the network node, further information based on the received information to the terminal and/or one or more further network nodes. The disclosure also pertains to related methods and devices.

Abstract: Systems and methods for providing flexible time masks for transmission in a wireless communication system are disclosed. In some embodiments, a method of operation of a node in a wireless communication system comprises providing, to a wireless device, an indication of a position of a transient period during a time mask, where the position of the transient period is adapted to a clear channel assessment period at the wireless device or the position of the transient period is such that the transient period occurs at least partially during a clear channel assessment period. The time mask defines an OFF period during which a transmitter of the wireless device is to be off, an ON period during which the transmitter of the wireless device is to be on, and the transient period. The transient period is a period during which the transmitter of the wireless device is to ramp-up or ramp-down.

Abstract: Disclosed are methods for performing radio measurements in a wireless device and methods in a network node for managing radio measurements performed by a wireless. Also disclosed are a network node and a wireless device suitable for performing the disclosed methods. A wireless device obtains an indication of a first cell carrier frequency associated with a first altitude range and an indication of a second cell carrier frequency associated with a second altitude range, determines an altitude of the wireless device and performs a radio measurement on a signal received from a cell operating on the first cell carrier frequency only when the altitude of the wireless device is within the first altitude range and performing a radio measurement on a signal received from a cell operating on the second cell carrier frequency only when the altitude of the wireless device is within the second altitude range.

Abstract: Embodiments herein relate to a communication device and a method performed by the communication device for enabling improved random access transmissions in a radio communications network. The communication device obtains information indicating a first random access channel configuration and also obtains information indicating at least a second random access channel configuration. Then, the communication device determine whether or not the at least second random access channel configuration is orthogonal to the first random access channel configuration. Furthermore, the communication device uses the result of the determining to determine the time required by the communication device to configure the at least second cell. Embodiments herein also relate to a first network node and a method therein for enabling improved random access transmissions in a radio communications network.

Abstract: According to a disclosed example, an intention of a first wireless communication device to use a first power level and a first time-frequency resource for up-link transmission to a first cellular communication network is detected. At a second wireless communication device, a signal is received from the first device indicative of up-link transmission. The second device determines whether or not an interference (caused by the up-link transmission of the first device and affecting a down-link reception of the second device from a second cellular communication network at a second power level in a second time-frequency resource) has a third power level associated with the first power level that exceeds a power level threshold associated with the second power level.

Abstract: This disclosure pertains to a method for operating a terminal (10) in a wireless communication network. The method comprises performing a Listen-Before-Talk, LBT, procedure on at least one LBT communication link of a set of LBT communication links, wherein performing the LBT procedure is based on 475 information received by the terminal (10), the received information pertaining to operational conditions of the LBT communication links of the set of LBT communications links. The disclosure also pertains to related devices and methods.

Abstract: A flight transceiver station (FTS) mounted onboard an aircraft communicates with one or more terrestrial transceiver points by determining, for a future moment in time, a position of the flight transceiver station in 3-dimensional space; an attitude of the flight transceiver station; one or more respective directions from the position of the flight transceiver station to the one or more terrestrial transceiver points; respective radial velocities between the flight transceiver station and the one or more terrestrial transceiver points. The FTS also determines, based on the respective directions and attitudes, beamforming weights for one or more transmit beams towards each of the one or more terrestrial transceiver points; and predicts, based on the respective radial velocities, respective Doppler shifts of a carrier frequency used between the flight transceiver station and the one or more terrestrial transceiver points.

Abstract: According to some embodiments, a method in a wireless device operating in dual connectivity comprises determining a synchronization type associated with a dual connectivity operation; determining a maximum timing advance value based on the determined synchronization type; receiving a timing advance value from a network node; determining an adapted timing advance value using the received timing advance value and the determined maximum timing advance value; and transmitting an uplink radio signal using the adapted timing advance value.

Abstract: A wireless device (810) obtains (904) a first transmission time interval (TTI) for transmitting a first signal, and determines (908), based on the first TTI, a first transient time associated with the first TTI that defines a first duration during which a transmit power level of the wireless device changes. The wireless device transmits (912) the first signal using the first transient time. The wireless device obtains (916) a second TTI for transmitting a second signal, wherein a length of the second TTI is different from a length of the first TTI. The wireless device determines (920), based on the second TTI, a second transient time associated with the second TTI that defines a second duration during which the transmit power level of the wireless device changes that is different from the first transient time. The wireless device transmits (924) the second signal using the second transient time.

Abstract: This disclosure pertains to a method for operating a user equipment (10) in a radio access network, the method comprising transmitting signaling based on an emission control parameter, the emission control parameter being based on a TTI configuration and/or structure. There are also disclosed related devices and methods.

Abstract: According to one aspect, a method includes selecting at least one of a common bandwidth scheme and a common power scheme. If the selected at least one scheme includes a common bandwidth scheme, a common bandwidth to be used by the wireless device for transmission of two data channels in two successive short transmission time intervals, sTTIs, that share a common demodulation reference signal, DMRS, is determined. An indication of the common bandwidth to the wireless device to enable the wireless device to set the bandwidth of the two data channels to a common bandwidth value is sent. If the selected at least one scheme includes a common power scheme, then a common power control command to control an output power to be set by the wireless device for two data channels in two successive sTTI, that share a common DMRS is determined.

Abstract: A network node, a communication device and methods therein, for handling dynamic uplink/downlink, UL/DL, subframe configurations when operating in Time Division Duplex, TDD. The network node obtains capability information indicating whether the communication device supports carrier aggregation and/or frequency band combination, and also indicating whether the communication device supports simultaneous reception and transmission of signals on different carriers or frequency bands. The network node then determines UL/DL subframe configurations for the communication device based on the obtained capability information such that the communication device is to use different UL/DL subframe configurations for different carriers or frequency bands, when certain conditions are fulfilled.

Abstract: A network node is provided. The network node includes circuitry configured to determine a Transmission Time Interval, TTI, configuration, the TTI configuration including a first TTI for operating a first signal between a first cell on a first carrier and a wireless device, and a second TTI for operating a second signal between the first cell on the first carrier and the wireless device, the TTI configuration including one of: the first TTI adjacent to the second TTI which do not overlap with each other in time; and the first TTI adjacent to the second TTI which at least partly overlap with each other in time, and configured to receive the first signal in the first TTI and the second signal in the second TTI, the first TTI and second TTI having been transmitted based on a maximum output power parameter that is based on the TTI configuration.

Abstract: Systems and methods for determining a set of numerologies—for performing multicarrier operation of a user equipment for operating signals on at least a first carrier in a first cell and a second carrier in a second cell are provided.

Abstract: Methods for signaling and receiving mobility terminal capabilities with respect to synchronized or unsynchronized dual connectivity operations. An example method suitable for implementation in a mobile terminal configured for dual connectivity information includes receiving (810) a request from a network node for signaling capability information to the network node. The method further includes signaling (820) to the network node, in response to the request, capability information that includes an indication of which carrier aggregation band combinations are supported by the mobile terminal for dual connectivity operation and an indication of a level of synchronization with which the mobile terminal can support dual connectivity operation for one or more of the supported carrier aggregation combinations.

Abstract: A network node in a cellular communications network sends a timing measurement command to a terminal device in the cellular communications network. The terminal device receives the timing measurement command from the network; determines whether to select at least one cell of the network; and reports timing information for any selected cell to the network.

Abstract: A method, wireless device and network node for supporting at least one transmission time interval, TTI, are disclosed. According to one aspect, a method includes communicating with a network node in a first cell on a first carrier. The method further includes determining an operation to be performed by the wireless device in a second cell on a second carrier. The method further includes performing the determined operation in the second cell while interrupting the communication with the network node in the first cell on the first carrier according to an interruption parameter that does not exceed an interruption threshold that depends on a duration of a TTI on the first carrier.

Abstract: According to a disclosed example, an intention of a first wireless communication device to use a first power level and a first time-frequency resource for up-link transmission to a first cellular communication network is detected. At a second wireless communication device, a signal is received from the first device indicative of up-link transmission. The second device determines whether or not an interference (caused by the up-link transmission of the first device and affecting a down-link reception of the second device from a second cellular communication network at a second power level in a second time-frequency resource) has a third power level associated with the first power level that exceeds a power level threshold associated with the second power level.

Abstract: According to some embodiments, a method for use in a user equipment (UE) of transmitting wireless signals according to an ON/OFF time mask comprises: obtaining a transmission time interval (TTI) for operating a wireless signal between the UE and a cell; and determining an ON/OFF time mask from a plurality of ON/OFF time masks based on the obtained TTI. The ON/OFF time mask specifies a length and position of transient periods for power ramp up and ramp down with respect to an associated TTI. The method further comprises transmitting the wireless signal in the cell according to the determined ON/OFF time mask. For example, determining the ON/OFF time mask may comprise determining one ON/OFF time mask if a length of the obtained TTI is below a threshold, and determining a different ON/OFF time mask if the length of the obtained TTI is equal to or above the threshold.

Abstract: In some embodiments, a method of multi-connectivity operation of a wireless device in Discontinuous Reception (DRX) comprises determining whether a first DRX ON duration in a first DRX cycle configured for use by the wireless device in a first Cell Group (CG) for multi-connectivity operation and a second DRX ON duration in a second DRX cycle configured for use by the wireless device in a second CG for multi-connectivity operation partially overlap in time with one another. The method further comprises, upon determining that the first DRX ON duration and the second DRX ON duration partially overlap, taking one or more actions that mitigate the partial overlap between the first DRX ON duration in the first DRX cycle and the second ON duration in the second DRX cycle. By avoiding partial overlap, interruptions at the wireless device as a result of transitioning between DRX states can be mitigated or avoided.