Abstract: There is provided mechanisms for controlling total average transmission power of a radio base station. A method is performed by a control device. The method comprises performing, for a current discrete time value t, control of total average transmission power {Ptot}(t) of the radio base station according to a back-off power control loop. The total average transmission power {Ptot}(t) is computed over an averaging time window T of the present value of momentary transmission power and the N?1 values of momentary transmission power preceding the present value of momentary transmission power. The method comprises evaluating, for a future discrete time value less than, or equal to, t+T, the total average transmission power, assuming that values of momentary transmission power for all discrete time values from t up to t+T, starting at the next discrete time value t+1, is limited to a minimum value of said momentary transmission power.

Abstract: A method for sharing user equipment state estimates between nodes within a wireless communication network comprises initiating of transmission of at least one of obtained user equipment kinematic state estimate information and obtained user equipment type state estimate information to a receiving network node as a response to an obtained indication of a need for sharing user equipment state estimates. The obtained user equipment kinematic state estimate information comprising a latest kinematic state update time, as well as mode state vector estimates, mode covariance matrices and mode probabilities for at least one user equipment kinematic mode. The obtained user equipment type state estimate information comprising a latest type state update time and a type state probability estimate. A method for receiving and propagating the user equipment state estimates, and devices for both methods are also disclosed.

Abstract: A method for type state estimation of a user equipment connected to a wireless communication network. The method comprises updating, recursively, of a type state estimate. The type state estimate is a probability for the user equipment to be a drone conditioned on obtained kinematic state estimate updates concerning the user equipment. The user equipment is assigned to be a drone as a response on the type state estimate exceeding a threshold.

Abstract: There is provided mechanisms for average EIRP control of at least two radio power sources. A method is performed by a coordinating controller of a site. The site comprises the at least two radio power sources. The method comprises obtaining, from a respective inner controller of each of the at least two radio power sources, power control feedback information. The method comprises determining, according to an inner control loop for each of the at least two radio power sources, coordinating control information from the power control feedback information. The method comprises performing individual average power control of each of the at least two radio power sources by providing, to each respective inner controller, the coordinating control information, whereby total average transmission power of each of the at least two radio power sources is selectively adjusted based on the inner control loop.

Abstract: There is provided a method at a network node equipped with an advance antenna system, AAS. The AAS comprises a plurality of antenna elements and one or more radio frequency integrated circuits, RFICs. Each of the one or more RFICs is associated with one or more of the plurality of antenna elements. The method comprising: capturing a plurality of signal samples of one or more signal chains of each of the one or more RFICs. Each of the one or more signal chains correspond to one or more of the plurality of antenna elements and a signal sample is associated with an envelope power level at an output of the respective signal chain; and summing at least a subset of the plurality of signal samples to obtain a short term average power value at the AAS.

Abstract: Embodiments of a method in a network node for controlling a radio transmitter. In each one of a plurality of consecutive control steps spanning a predetermined control window, determining a first limit representing a number of physical resource blocks, PRBs, that can be scheduled in each one of a plurality of consecutive future slots of a current control step, based at least in part on an allowable average output power of the radio transmitter. The control window comprises a plurality of control steps, and each control step comprises a plurality of slots. When the determined first limit is less than or equal to a pre-configured second limit representing a number of PRBs that can be scheduled in a single slot, scheduling PRBs in a proportion of the plurality of consecutive future slots of the current control step, the proportion being calculated such that an averaged fraction of scheduled PRBs in the current control step is less than or equal to the first limit.

Abstract: A method for wireless backhaul inter-node communication between a first backhaul node and a second backhaul node is provided. The method includes computing a beamforming weight matrix W; and the first backhaul node using the beamforming weight matrix W to transmit and/or receive data to and/or from the second backhaul node. The beamforming matrix W is computed as the inverse of a weighted channel estimate matrix (Formula I), such that W=(Formula II), where ? is a channel estimate matrix and ? is a weighting factor matrix such that (Formula III) where ? has dimension Nrx by Ntx, where Nrx is the number of receive antennas and Ntx is the number of transmit antennas, where Ntx,=Nrx, and ? is a scalar between 0 and 1, and where ? denotes a Hadamard matrix product.

Abstract: A method (300) for indoor positioning or navigation comprises obtaining (310) a set of features which describe characteristics of a place in an indoor space. This obtained set of features may describe characteristics of a place at which a wireless device is located, a place targeted by a wireless device as a destination, or a place targeted by a wireless device to avoid. Regardless, the method (300) further comprises comparing (320) the obtained set of features to addresses of respective indoor blocks into which the indoor space is spatially divided. Each indoor block in this regard is identified as being located at an address formed from a set of features which describe characteristics of the indoor block. The method (300) also comprises determining (330), based on the comparing, which of the indoor blocks corresponds to the place in the indoor space.

Abstract: A method for kinematic state estimation of a UE in a wireless communication system. The method includes estimating of a kinematic state having two-dimensional position, two-dimensional velocity and a frequency bias of the UE. The estimation is based on and fully enabled by obtained measurements of Doppler shifts, relative two different antennas of the wireless communication system, of radio signals transmitted from the UE, and obtained distance-establishing measurements associated with the UE. A network node performing the method and a computer program therefore are also presented.

Abstract: According to one or more embodiments, a network node for controlling transmit power is provided. The network node includes processing circuitry configured to estimate a derivative of time-averaged transmit power of the network node, determine that the estimated derivative meets a first threshold, and trigger at least one action to limit the time-averaged transmit power of the network node based on the determination that the estimated derivative meets the first threshold.

Abstract: Embodiments include methods for determining a movement state of a user equipment (UE) operating in a radio access network (RAN). Such methods include performing positioning measurements on signals received from a plurality of transmission points (TPs) in the RAN, including first measurements of Doppler shift of signals from a first TP, second measurements of Doppler shift of signals from a second TP that is spatially separated from the first TP, and third measurements of signals from a third TP. The third TP can be the same as the first or second TP, or spatially separated from both. Such methods include determining a UE movement state based on the positioning measurements and an interacting multiple-model (IMM) that includes a first almost-constant velocity model, a second maneuver velocity model, and a Doppler shift bias state common to the first and second models. Other embodiments include complementary methods for a RAN node.

Abstract: A method of determining the position of a moving unmanned aerial vehicle (UAV) is provided. The method comprises obtaining, for each of three or more base stations, one or more measurements of a carrier frequency offset (CFO) for one or more signals sent between a moving UAV and the respective base station. The method further comprises inputting the CFO measurements into a model to determine a position of the UAV, in which inputs to the model do not include range measurements of the UAV with respect to the three or more base stations.

Abstract: There is provided a method for adjusting beam gain in a radio network node comprising a plurality of antenna elements. The radio network node is configured with a codebook comprising a plurality of predetermined precoding matrices. The method comprises: determining a direction from the radio network node to a target wireless device, and a configured beam gain value in the determined direction; adapting one or more of the plurality of predetermined precoding matrices to generate an adapted precoding matrix in which the beam gain is maximal in the determined direction and equal to or less than the configured beam gain value; and applying the adapted precoding matrix to signals output to the plurality of antenna elements for transmission to the target wireless device.

Abstract: Embodiments include methods for estimating movement of an aerial user equipment (UE) by a first RAN node serving the aerial UE in a cell of the RAN. Such methods include determining initialization parameters for an interacting multiple-model (IMM) for movement of the aerial UE in the cell. The initialization parameters include a plurality of neighbor cells, in the RAN, in which positioning measurements should be performed for the aerial UE, and/or for at least one movement mode of the IMM, an initial state comprising a plurality of initial position estimates for the aerial UE. Such methods include determining a movement state for the aerial UE at a first time based on the initialization parameters and positioning measurements of the aerial UE that are performed in the cell and in at least a portion of the neighbor cells. Other embodiments include complementary methods for a second RAN node.

Abstract: There is provided mechanisms for controlling total average transmission power of a radio base station. A method is performed by a control device. The method comprises performing control of total average transmission power (Ptot)(t) of the radio base station according to a back-off power control loop. In the back-off power control loop, a setpoint value (Ptot)ref of the total average transmission power is compared with a value of the total average transmission power (Ptot)(t)—The value of the total average transmission power (Ptot)(t) is computed over an averaging time T. Control parameters of the back-off power control loop are scaled proportionally to the inverse of the averaging time T. The control parameters pertain to a response time of the back-off power control loop.

Abstract: A method of determining a two-dimensional position of a moving wireless device is provided. The method comprises obtaining, for each of three or more base stations, one or more measurements of a carrier frequency offset for one or more signals sent between the moving wireless device and the respective base stations. The method further comprises inputting the carrier frequency offset measurements into a model to determine a two-dimensional position of the moving wireless device, in which inputs to the model do not include range measurements for the moving wireless device with respect to the three or more base stations.

Abstract: There is provided mechanisms for multiplexed transmission of data packages towards a terminal device. A method is performed by a network node. The method comprises multiplexing, for the terminal device, at least one data package of a first service having a first QoS requirement with at least one of at least two duplicated data packages of a second service having a second QoS requirement, different from the first QoS requirement. The method comprises transmitting the multiplexed data packages towards the terminal device over at least two independent paths. The duplicated data packages are transmitted on mutually different ones of the at least two independent paths.

Abstract: According to one or more embodiments, a network node is provided. The network node includes processing circuitry configured to: feedback a total momentary carrier power associated with a plurality of co-sited carriers for controlling a respective power of each of the plurality of co-sited carriers.

Abstract: Mechanisms for controlling total average transmission power of a radio base station over a fixed time period. A method is performed by a control device. The method comprises obtaining values of average total transmission power of at least one previous transmission from the radio base station. The method comprises determining a resource factor value from the value of average total transmission power and a setpoint value of the average total transmission power. The method comprises determining, based on the resource factor value, an action that restricts the amount of code-division multiple access (CDMA) resources to be used at least for a current transmission. The method comprises controlling the total average transmission power over the fixed time period by initiating the determined action at least for the current transmission.

Abstract: A MIMO transmission point utilizes respective pluralities of beam weights to transmit corresponding pluralities of beams to each group of wireless devices, with respective numbers of resources being allocated for transmissions to each group of wireless devices. One method comprises: determining an average output power of the transmission point over a period of time in a first direction; comparing the average output power to an output power reference value; determining a fraction of a pool of available resources for the allocation of data to be transmitted by the transmission point as a function of the comparison; for each group of wireless devices, and determining beam gains in the first direction for each of the plurality of beams and weighting the number of resources allocated to the group of wireless devices according to the determined beam gains to obtain an effective number of resource blocks in the resources in the first direction.