Abstract: A method for an electronic receiver of processing a packet of a hybrid automatic repeat request (HARQ) system is disclosed. The method comprises receiving a first transmission of the packet, wherein the first transmission comprises a first plurality of soft symbol values and determining whether the first plurality of soft symbol values meets a stop criterion. If it is determined that the first plurality of soft symbol values does not meet the stop criterion, a subject of the first plurality of soft symbol values is determined, wherein the subset comprises a number of soft symbol values of the first plurality of soft symbol values, the number being greater than zero and less than the first plurality. The subset of the first plurality of soft symbol values is stored in a HARQ buffer.

Abstract: A method for a terminal of a cellular telecommunication system for determining system information about a node of a network of the telecommunication system is disclosed. The telecommunication system enables determination of the system information by the terminal from information transmitted from at least one cell operated by the node, where the telecommunication system employs Orthogonal Frequency Division Multiple Access. The method comprises receiving a transmission signal, comprising reference symbols and synchronization symbols, from a network node of the at least one cell; estimating, for each transmit antenna of the network node, a preliminary channel estimate based on the received reference symbols; and estimating a pre-coding vector, being associated with transmission by at least one transmit antenna of the network node of the at least one cell, for the synchronization symbols. Corresponding features for computer program, decoder and terminal are also disclosed.

Abstract: There is provided a method for monitoring a building control device, the method comprising associating the building control device with an event; storing the event and at least one parameter of the building control device in a database, wherein the database is operatively connected to a plurality of operator devices, and wherein the at least one parameter at least pertains to defining the event to be one from the group of unassigned, pending, or assigned by the plurality of operator devices; traversing, by at least a first of the plurality of operator devices, the database subject to the at least one parameter.

Abstract: Methods and apparatus are disclosed for estimating inter-cell interference levels for resource elements of a received Orthogonal Frequency-Division Multiplexing (OFDM) signal. In an exemplary method in a wireless receiver, a reference symbol interference levels is measured for each of a plurality of reference symbols in a received OFDM signal, and interference scaling factors are mapped to each of a plurality of resource elements of the received OFDM signal. Each interference scaling factor reflects the probability that the corresponding resource element or group of resource elements is subject to interference from an interfering OFDM signal. Interference levels for each of the resource elements are then estimated as a function of the measured reference symbol interference levels and the interference scaling factors.

Abstract: A method of delay spread compensation, suitable for use in a communication device a having plurality of receiver antennas, is disclosed. The method comprises receiving a plurality of signals, each via a respective antenna, wherein each signal comprises a signal component corresponding to a transmitted signal, and wherein each received signal experiences a respective channel impulse response having a corresponding delay spread; determining estimates of each of the channel impulse responses; calculating post-coding characteristics based on the estimates of the channel impulse responses; and post-coding the plurality of received signals using the post-coding characteristics to produce at least a first delay spread compensated signal. Corresponding computer program product, processing arrangement and communication device are also disclosed.

Abstract: A method of estimating and reporting, for a receiver (4) associated with a plurality of antennas (41, 42, 43, 44), a channel quality measure of a wireless communication channel from a transmitter (2) to the receiver, the method comprising the steps of: selecting at least one antenna configuration from a set of mutually different antenna configurations inherent to the receiver; determining a channel quality measure for the selected antenna configuration; and reporting the channel quality measure. The set of mutually different antenna configurations comprises antenna configurations that are allocated to different frequency bands (FB1,FB3). A receiver (4), user equipment, computer program and computer readable medium are also disclosed.

Abstract: The current invention relates to a method of determining a quality of a received signal, wherein the method comprises receiving a signal comprising a first part and a second part and wherein at least the second part of the received signal comprises a scrambling sequence period; and determining a first noise-and-interference power of the first part of the received signal by removing a second noise-and-interference power of the second part of the signal, wherein the scrambling sequence period is utilized in the removal. The invention further relates to a corresponding device and system. Thereby, the invention is able to, among other things, reduce neighbor cell reference symbol interference in a dense network.

Abstract: A base station includes transmitter and associated processing circuits. The transmitter circuits are configured to transmit control information and data traffic to mobile terminals in repeating transmission intervals, each interval having defined control and data portions. The processing circuits are configured to dynamically determine that the control portion has insufficient resources for transmitting control information to one or more of the mobile terminals, and, in response, at least temporarily transmit control information in the data portion, rather than in the control portion, for a selected one or more of the mobile terminals. Correspondingly, a mobile terminal is configured to selectively search for and decode control information in the data portion of one or more transmission intervals, rather than in the control portion.

Abstract: A method for voltage stabilization of an electrical power network system including a producing power network system side, a consuming power network side including a power load, a power transmission line with an impedance ZLN, a transformer and an on-line tap changer added to the transformer. The impedance of the line is measured in case of dynamic instabilities. A transformer ratio n is controlled by changing a voltage reference Vref of the on-line tap changer. The voltage reference is changed according to a feed forward compensation from the impedance of the line.

Abstract: A method for a terminal of a cellular telecommunication system, wherein the method comprises receiving a transmission signal, comprising reference symbols and synchronisation symbols, from the network node of the at least one cell; determining at least one pre-coding vector, of which one pre-coding vector being associated with transmission by an at least one transmit antenna of the network node of the at least one cell, for the transmission signal; and estimating, for each of the at least one pre-coding vector, a channel estimate for all sub-carriers of the received transmission signal from the received reference symbols and a reference symbol channel model defined for reference symbols of the transmission signal, and from the synchronisation symbols, the at least one pre-coding vector and a synchronisation symbol channel model defined for synchronisation symbols of the transmission signal.

Abstract: A base station includes transmitter and associated processing circuits. The transmitter circuits are configured to transmit control information and data traffic to mobile terminals in repeating transmission intervals, each interval having defined control and data portions. The processing circuits are configured to dynamically determine that the control portion has insufficient resources for transmitting control information to one or more of the mobile terminals, and, in response, at least temporarily transmit control information in the data portion, rather than in the control portion, for a selected one or more of the mobile terminals. Correspondingly, a mobile terminal is configured to selectively search for and decode control information in the data portion of one or more transmission intervals, rather than in the control portion.

Abstract: A method and apparatus is provided for demodulating a desired data stream in a MU-MIMO communication system where only the precoder for the desired data stream is known a priori. The receiving terminal according to various embodiments of the present invention estimates the precoder for one or more interfering data streams. The receiving terminal can then use the known precoder for the desired data stream and the estimated precoders for the interfering data streams to perform MMSE demodulation.

Abstract: Methods and apparatus are disclosed for estimating inter-cell interference levels for resource elements of a received Orthogonal Frequency-Division Multiplexing (OFDM) signal. In an exemplary method in a wireless receiver, a reference symbol interference levels is measured for each of a plurality of reference symbols in a received OFDM signal, and interference scaling factors are mapped to each of a plurality of resource elements of the received OFDM signal. Each interference scaling factor reflects the probability that the corresponding resource element or group of resource elements is subject to interference from an interfering OFDM signal. Interference levels for each of the resource elements are then estimated as a function of the measured reference symbol interference levels and the interference scaling factors.

Abstract: There is provided a method for monitoring a building control device, the method comprising associating the building control device with an event; storing the event and at least one parameter of the building control device in a database, wherein the database is operatively connected to a plurality of operator devices, and wherein the at least one parameter at least pertains to defining the event to be one from the group of unassigned, pending, or assigned by the plurality of operator devices; traversing, by at least a first of the plurality of operator devices, the database subject to the at least one parameter.

Abstract: A method for a terminal of a cellular telecommunication system for determining system information about a node of a network of the telecommunication system is disclosed. The telecommunication system enables determination of the system information by the terminal from information transmitted from at least one cell operated by the node, where the telecommunication system employs Orthogonal Frequency Division Multiple Access. The method comprises receiving a transmission signal, comprising reference symbols and synchronisation symbols, from a network node of the at least one cell; estimating, for each transmit antenna of the network node, a preliminary channel estimate based on the received reference symbols; and estimating a pre-coding vector, being associated with transmission by at least one transmit antenna of the network node of the at least one cell, for the synchronisation symbols. Corresponding features for computer program, decoder and terminal are also disclosed.

Abstract: The present invention relates to voltage stabilization of electrical power networks, and in particular to a method for voltage stabilization of an electrical power network system comprising a producing power network system side and a consuming power network side to maintain voltage, wherein the power transfer YLD, wherein YLD is power load impedance, is dynamically maintained below the loci for maximum power transfer, n2YLDZLN=1, wherein YLD is power load impedance, ZLN is transmission line impedance and n is transformer ratio, preferably YLD is maintained at a stable equilibrium.