Abstract: Method, apparatus and arrangement for linearizing of a transmitter array having a plurality of non-linear branches for transmitting into a predetermined direction, wherein the non-linear branches may purposively be made different to obtain varying responses of the non-linear branches over the transmitter array. A combined array response is determined via a feedback structure that models an array response to the predetermined direction and predistortion coefficients are determined based on the measured array response. A feedback circuit with a plurality of feedback branches can be used for feeding back individual response signals at the outputs of the non-linear branches through phase shift and attenuation units of the feedback branches, and for combining the response signals at the outputs of the feedback branches, wherein phase shift and attenuation of each feedback branch is controlled to model a transmission channel of the individual response signals to a receiver in a predetermined direction.

Abstract: Method, apparatus and arrangement for linearizing of a transmitter array having a plurality of non-linear branches for transmitting into a predetermined direction, wherein the non-linear branches may purposively be made different to obtain varying responses of the non-linear branches over the transmitter array. A combined array response is determined via a feedback structure that models an array response to the predetermined direction and predistortion coefficients are determined based on the measured array response. A feedback circuit with a plurality of feedback branches can be used for feeding back individual response signals at the outputs of the non-linear branches through phase shift and attenuation units of the feedback branches, and for combining the response signals at the outputs of the feedback branches, wherein phase shift and attenuation of each feedback branch is controlled to model a transmission channel of the individual response signals to a receiver in a predetermined direction.

Abstract: An apparatus comprising means for: applying beam shape coefficients for obtaining a beam shape output for a linear part of the beam formed by an array of transmitters, each transmitter being associated with a respective transmit path comprising a respective power amplifier; varying the output characteristics of at least one transmit path to increase nonlinear characteristics between the transmit paths to provide a beam shape for a non-linear part of the beam; linearizing the output of the array by: determining linearization coefficients for the array for digitally predistorting the input signal to the array; and applying the linearization coefficients to the signal input to the array; and calibrating the transmitter array by: measuring error distributions over at least two transmit paths; modifying the beam shape coefficients to better obtain the beam shapes subsequent to the linearization; and applying the modified beam shape coefficients to the array of transmitters.

Abstract: An apparatus comprising means for: applying beam shape coefficients for obtaining a beam shape output for a linear part of the beam formed by an array of transmitters, each transmitter being associated with a respective transmit path comprising a respective power amplifier; varying the output characteristics of at least one transmit path to increase nonlinear characteristics between the transmit paths to provide a beam shape for a non-linear part of the beam; linearizing the output of the array by: determining linearization coefficients for the array for digitally predistorting the input signal to the array; and applying the linearization coefficients to the signal input to the array; and calibrating the transmitter array by: measuring error distributions over at least two transmit paths; modifying the beam shape coefficients to better obtain the beam shapes subsequent to the linearization; and applying the modified beam shape coefficients to the array of transmitters.

Abstract: In accordance with an example embodiment of the present invention, an apparatus for transmission is disclosed comprising a processor configured to receive data and to form data packets, a radio frequency transmitter configured to transmit the data packets, a monitor configured to evaluate resource utilization of the radio frequency transmitter and to provide a resource utilization rate, and a controller, wherein the controller is configured to instruct the processor to form multiple output or single output data packets to the radio frequency transmitter based on the resource utilization rate.

Abstract: Apparatus comprising a first antenna configured to receive alignment signalling from a first transmitter over a first communication channel, the first communication channel having a first set of characteristics, and a second antenna configured to exchange data w.th a second transmitter over a second communication channel, the second communication channel having a second different set of characteristics. The apparatus also comprising a processor configured to process the alignment signalling received from the first antenna and determine the location of the second transmitter relative to the apparatus; and generate control signalling representative of the determined location of the second transmitter relative to the apparatus.

Abstract: A receiver circuit comprising a connection portion for guiding each one of a first predefined number of carrier signals of multiple carriers to one of a number of receive branches, each receive branch comprising at least one amplifier load structure, the number of receive branches being equal to the first predefined number. The receiver circuit also comprises a mixing portion for generating a second predefined number of mixed carrier signals on each receive branch by mixing a carrier signal on each one of the receive branches with a number of local oscillator frequencies equal to the second predefined number, and a selection portion for selecting one of the second predefined number of mixed carrier signals on each receive branch to be output via a number of output paths equal to the first predetermined number to a digital data path.

Abstract: A receiver circuit comprising a connection portion for guiding each one of a first predefined number of carrier signals of multiple carriers to one of a number of receive branches, each receive branch comprising at least one amplifier load structure, the number of receive branches being equal to the first predefined number. The receiver circuit also comprises a mixing portion for generating a second predefined number of mixed carrier signals on each receive branch by mixing a carrier signal on each one of the receive branches with a number of local oscillator frequencies equal to the second predefined number, and a selection portion for selecting one of the second predefined number of mixed carrier signals on each receive branch to be output via a number of output paths equal to the first predetermined number to a digital data path.

Abstract: Apparatus comprising a first antenna configured to receive alignment signalling from a first transmitter over a first communication channel, the first communication channel having a first set of characteristics, and a second antenna configured to exchange data with a second transmitter over a second communication channel, the second communication channel having a second different set of characteristics. The apparatus also comprising a processor configured to process the alignment signalling received from the first antenna and determine the location of the second transmitter relative to the apparatus; and generate control signalling representative of the determined location of the second transmitter relative to the apparatus.

Abstract: A receiver uses a local oscillator to receive data transmitted via a combination of radio frequency signals using carrier aggregation. Each radio frequency signal occupies a respective radio frequency band and the radio frequency bands are arranged in two groups, a first group and a second group, separated in frequency by a first frequency region, each of the groups including one or more radio frequency bands and the first group occupying a wider frequency region than the second group. The radio frequency signals are processed using the local oscillator by setting the local oscillator, during the processing, to a frequency that is offset from the centre of a band defined by outer edges of the frequency regions occupied by the two groups.

Abstract: A processor (108) configured to associate (302) RFID data (124) obtained from a scene (202) with captured image data for the scene (202). The association can be displayed (304) to a user to enable a user to select (306), using the image data, which RFID data to interact (308) with.

Abstract: A receiver uses a local oscillator to receive data transmitted via a combination of radio frequency signals using carrier aggregation. Each radio frequency signal occupies a respective radio frequency band and the radio frequency bands are arranged in two groups, a first group and a second group, separated in frequency by a first frequency region, each of the groups including one or more radio frequency bands and the first group occupying a wider frequency region than the second group. The radio frequency signals are processed using the local oscillator by setting the local oscillator, during the processing, to a frequency that is offset from the center of a band defined by outer edges of the frequency regions occupied by the two groups.

Abstract: Embodiments provide a transmitter and a method for transmitting data via a combination of a first signal modulated at a first carrier frequency, and a second signal modulated at a second carrier frequency, different to the first carrier frequency. In one embodiment the transmitter includes a local oscillator and is configured to adaptively configure the local oscillator to operate at a first local oscillator frequency and an alternative local oscillator frequency, different to the first frequency, in dependence on a required signal strength of the first signal relative to a required signal strength of the second signal.

Abstract: Embodiments provide a receiver and a method for receiving data transmitted via a combination of a first signal modulated at a first carrier frequency, and a second signal modulated at a second carrier frequency, different to the first carrier frequency. In one embodiment the receiver includes a local oscillator and is configured to adaptively configure the local oscillator to operate at a first local oscillator frequency and a second local oscillator frequency, different to the first frequency, in dependence on a signal strength of the first signal relative to a signal strength of the second signal.

Abstract: Embodiments provide a transmitter and a method for transmitting data via a combination of a first signal modulated at a first carrier frequency, and a second signal modulated at a second carrier frequency, different to the first carrier frequency. In one embodiment the transmitter includes a local oscillator and is configured to adaptively configure the local oscillator to operate at a first local oscillator frequency and an alternative local oscillator frequency, different to the first frequency, in dependence on a required signal strength of the first signal relative to a required signal strength of the second signal.

Abstract: Data is received that has been transmitted via a combination of radio frequency signals using carrier aggregation, each radio frequency signal occupying a respective radio frequency band, the bands being arranged in two groups separated in frequency by a first frequency region, the first of the two groups occupying a wider frequency region than the second group. Embodiments provide a method and apparatus for downcoverting the radio frequency signals using quadrature mixing to give inphase and quadrature components, and the inphase and quadrature components are filtered using a first bandpass filter bandwidth to give first bandpass filtered inphase and quadrature components and filtered using a second bandpass filter bandwidth, different from the first bandpass filter bandwidth, to give second bandpass filtered inphase and quadrature components.

Abstract: A receiver uses a local oscillator to receive data transmitted via a combination of radio frequency signals using carrier aggregation. Each radio frequency signal occupies a respective radio frequency band and the radio frequency bands are arranged in two groups, a first group and a second group, separated in frequency by a first frequency region, each of the groups including one or more radio frequency bands and the first group occupying a wider frequency region than the second group. The radio frequency signals are processed using the local oscillator by setting the local oscillator, during the processing, to a frequency that is offset from the centre of a band defined by outer edges of the frequency regions occupied by the two groups.

Abstract: Data is received that has been transmitted via a combination of radio frequency signals using carrier aggregation, each radio frequency signal occupying a respective radio frequency band, the bands being arranged in two groups separated in frequency by a first frequency region, the first of the two groups occupying a wider frequency region than the second group. Inphase and quadrature components of the radio frequency signals are filtered using a first bandpass filter bandwidth to give first bandpass filtered components and filtered using a second bandpass filter bandwidth, different from the first bandpass filter bandwidth, to give second bandpass filtered components. A reconfigurable receiver is configurable to a first mode to receive the combination of radio frequency signals, and is also configurable to at least a second mode. At least one first filter is configured, in the first mode, to use a first bandpass filter bandwidth and, in the second mode, to use a lowpass filter bandwidth.

Abstract: Embodiments provide a receiver and a method for receiving data transmitted via a combination of a first signal modulated at a first carrier frequency, and a second signal modulated at a second carrier frequency, different to the first carrier frequency. In one embodiment the receiver includes a local oscillator and is configured to adaptively configure the local oscillator to operate at a first local oscillator frequency and a second local oscillator frequency, different to the first frequency, in dependence on a signal strength of the first signal relative to a signal strength of the second signal.

Abstract: Apparatus comprising a first antenna configured to receive alignment signalling from a first transmitter over a first communication channel, the first communication channel having a first set of characteristics, and a second antenna configured to exchange data with a second transmitter over a second communication channel, the second communication channel having a second different set of characteristics. The apparatus also comprising a processor configured to process the alignment signalling received from the first antenna and determine the location of the second transmitter relative to the apparatus; and generate control signalling representative of the determined location of the second transmitter relative to the apparatus.