Patent application number | Description | Published |
20100086016 | METHOD AND APPARATUS FOR VARYING A DYNAMIC RANGE - A communications device comprises a receiver for receiving an input signal operably coupled to analogue to digital converter logic. The analogue to digital converter logic is operably coupled to control logic via a signal analyser arranged to analyse a converted received input signal, output from the analogue to digital converter logic to determine at least one characteristic of the received signal. The control logic is arranged to vary a dynamic range of the analogue to digital converter logic depending on the at least one determined characteristic of the received input signal. | 04-08-2010 |
20100111154 | ELECTRONIC DEVICE, INTEGRATED CIRCUIT AND METHOD THEREFOR - A wireless communication device comprises a number of sub-systems and clock generation logic arranged to generate at least one clock signal to be applied to the number of sub-systems. One of the number of sub-systems comprises sampling logic for receiving input data and performing initial sampling on an input data bit using multiple separated phases of a clock period of the at least one clock signal applied to the sampling logic thereby producing multiple phase separated sampled outputs of the input data bit. The sampling logic is configured to perform a number of re-sampling operations on the multiple phase separated sampled outputs at a number of intermediate phases thereby producing multiple phase separated intermediate sampled outputs prior to performing a final sample of the multiple phase separated intermediate sampled outputs at a single phase of the at least one clock signal to produce a sampled input data signal. | 05-06-2010 |
20100117824 | METHOD AND APPARATUS TO RECEIVE LOCATION INFORMATION IN A DIVERSITY ENABLED RECEIVER - A method of processing location information on a mobile device which includes a primary receiver for receiving a primary signal; a diversity receiver for receiving a diversity signal or location information; a diversity combiner which can combine primary and diversity signals to form a combined signal; and a first processing unit for processing the combined signal; the method comprising the steps of: identifying whether the device is in a location mode or a diversity mode; if the device is in location mode, disabling the diversity combiner; passing the output from the primary receiver directly to the first processing unit; and passing location information from the diversity receiver to a location processing unit. | 05-13-2010 |
20100167674 | INTEGRATED CIRCUIT, WIRELESS COMMUNICATION UNIT AND METHOD FOR DETERMINING QUADRATURE IMBALANCE - An integrated circuit comprising processing logic for operably coupling to radio frequency (RF) receiver circuitry arranged to receive a wireless network signal. The receiver circuitry generates in-phase and quadrature digital baseband representations of the wireless network signal. The processing logic determines quadrature (I/Q) imbalance of the RF receiver circuitry based on the in-phase and quadrature digital baseband representations of the wireless network signal. | 07-01-2010 |
20100173601 | VERY LOW INTERMEDIATE FREQUENCY (VLIF) RECEIVER - A very low intermediate frequency (VLIF) receiver comprising a first and second mixer circuits, characterised in that receiver comprises a means of estimating the energy in a desired signal band; a means of estimating the energy in a band of frequencies comprising the desired signal band; and a means of altering a VLIF of the receiver according to the ratio of the energy in a desired signal band and the energy in the band of frequencies comprising the desired signal band. | 07-08-2010 |
20100177690 | WIRELESS COMMUNICATION UNIT - A wireless communication unit includes a baseband module and a radiofrequency module. A communication interface connects the baseband module to the radiofrequency module. Data can be communicated from the baseband module to the radiofrequency module and/or vice versa via the interface. The communication interface includes one or more data compression arrangement, for compressing original data to be transmitted over the communication interface, from a transmitting side of the communication interface to a receiving side of the communication interface, into compressed data and decompressing the compressed data after transmission and restoring the original data. The data compression arrangement may include a data compression unit at the transmitting side of the communication interface, and a data decompression unit at the receiving side of the communication interface. | 07-15-2010 |
20100203919 | ARRANGEMENT OF RADIOFREQUENCY INTEGRATED CIRCUIT AND METHOD FOR MANUFACTURING THEREOF - A master radiofrequency integrated circuit (RF IC) and a slave radiofrequency integrated circuit include a master radiofrequency module and a slave radiofrequency module, respectively. Both RF ICs include a radiofrequency side contact connectable to an antenna, for receiving radiofrequency signals, via the antenna, from a wireless communications network and a baseband side contact connected to the radiofrequency module and connectable to a contact of a baseband integrated circuit, for transmitting the baseband signals from the master radiofrequency module to the baseband integrated circuit. The RF module is connected to the radiofrequency side contact, for converting the radiofrequency signals into baseband signals. The master radiofrequency module includes a slave control unit for controlling the slave radiofrequency module. The master RF IC has a slave side contact connected to the slave control unit and to the slave RF IC, for transferring a control signal or data from and/or to slave radiofrequency module when the slave radiofrequency module is connected to the contact of the baseband integrated circuit. The slave RF IC includes a master side contact connected to a control interface of the slave RF module and connectable to a master radiofrequency module on another RF IC, for receiving the control signals from the master radiofrequency module. | 08-12-2010 |
20100298035 | WIRELESS COMMUNICATION UNIT, INTEGRATED CIRCUIT AND METHOD OF POWER CONTROL THEREIN - A wireless communication unit comprises a transmitter having a power amplifier and a feedback path operably coupled to the power amplifier. The feedback path comprises a coupler for feeding back a portion of a signal to be transmitted and a detector for detecting a power level of the fed back signal. A controller provides a ramp signal to the power amplifier that controls an amplitude characteristic of the signal to be transmitted. Averaging logic is operably coupled to the detector and arranged to average the detected power level over a first period. Comparison logic is operably coupled to the averaging logic and arranged to compare the average detected power level with a reference value. The controller is operably coupled to the comparison logic and arranged to scale a ramp signal applied to the power amplifier in response to the comparison. | 11-25-2010 |
20100311464 | WIRELESS COMMUNICATION UNIT, BASEBAND MODULE, RADIO FREQUENCY MODULE, WIRELESS TERMINAL AND COMPUTER PROGRAM PRODUCT - A wireless communication unit has two or more communication modes including one or more mobile phone mode, in which mobile phone mode the wireless communication unit is able to transmit or receive wireless signals via an antenna from and/or to a mobile phone network in accordance with a communication protocol. The unit includes a baseband module and a radiofrequency module. A radiofrequency interface of the baseband module is connected to the radiofrequency module, for receiving and/or transmitting baseband signals from and/or to the radiofrequency module. The radiofrequency module includes a baseband interface, for receiving and/or transmitting the baseband signals to the baseband module and an antenna interface (AI) connectable to an antenna for receiving and/or transmitting radiofrequency signals from and/or to the antenna. A clock system is connected to the radiofrequency interface and the baseband interface. The clock system can provide a clock signal with a clock rate of to the radiofrequency interface and the baseband interface in one or more of the one or more mobile phone modes. | 12-09-2010 |
20110007847 | DC COMPENSATION FOR VLIF SIGNALS - Receiver circuitry for processing a received Very Low Intermediate Frequency signal wherein the receiver circuitry comprises a main processing path. The main processing path comprises mixing circuitry arranged to mix a received VLIF signal with a frequency down conversion signal to produce a main path signal. The receiver circuitry further comprises a direct current cancellation path comprising mixing circuitry arranged to mix a DC element of the received VLIF signal with the frequency down conversion signal to produce a DC cancellation signal. The receiver circuitry still further comprises signal summing circuitry arranged to add the DC cancellation signal in anti-phase with the main path signal. | 01-13-2011 |
20110142169 | ELECTRONIC DEVICE, INTEGRATED CIRCUIT AND METHOD FOR SELECTING OF AN OPTIMAL SAMPLING CLOCK PHASE - An electronic device comprises a number of sub-systems coupled via an interface. One of the number of sub-systems comprises logic for receiving a frame of input data having a plurality of phases on respective data paths. The electronic device further comprises logic for performing cross correlation on the received input data with a pre-determined bit pattern, operably coupled to selection logic, for selecting a single phase from the plurality of phases sent to the interface to sample the received input data in a middle region of a data bit period in response to the cross correlation. | 06-16-2011 |
20110182335 | CALIBRATION SIGNAL GENERATOR - A calibration signal generator for use in a balancing circuit calibration device in a radio receiver, the calibration signal generator comprising: a means of amplifying a clocking signal from a clocking signal generator to provide a first calibration signal; a means of generating a second calibration signal from the clocking signal, the first and second calibration signals being transmissible to a one or more mixing circuits in the balancing circuit calibration device; and a means synchronising the operation of other circuit elements in the balancing circuit calibration device with the clocking signal; characterised in that the clocking signal generator is present in the radio receiver and used therein for other functions. | 07-28-2011 |
20120020392 | COMMUNICATION SYSTEM, NETWORK ELEMENT AND METHOD FOR ANTENNA ARRAY CALIBRATION - A network element for a wireless communication system is locatable to couple at least one base station to an antenna array comprising a plurality of antenna elements. The network element comprises a plurality of independent transceiver circuits coupled to at least one of a plurality of respective antenna elements of the antenna array; and logic arranged to apply at least one complex digital signal to at least one transceiver signal path of a transceiver circuit of the plurality of independent transceiver circuits. A feedback path is arranged to provide feedback of the at least one complex digital signal such that it is capable of facilitating determination of latency mismatch error response between at least two transceiver signal paths. Adjustment means comprises delay logic arranged to receive a complex digital signal and provide a modified representation of the received complex digital signal in response to the latency mismatch error response of the at least two transceiver signal path. | 01-26-2012 |
20120026998 | COMMUNICATION SYSTEM, NETWORK ELEMENT AND METHOD FOR ANTENNA ARRAY BEAM-FORMING - A network element for a wireless communication system is locatable to couple at least one base station to an antenna array. The network element comprises at least one receiver arranged to receive a radio frequency signal from the at least one base station or the antenna array and modem logic operably coupled to the at least one receiver. The modem logic comprises radio frequency conversion circuitry arranged to down-convert a received radio frequency signal to a baseband signal; analogue-to-digital conversion logic arranged to convert the baseband signal to digitized signals; and beam-form processing logic arranged to perform active beam-forming adjustment on the digitized signals. The modem logic further comprises digital-to-analogue conversion logic arranged to convert the beam-form adjusted digitized signals to analogue signals and radio frequency conversion circuitry arranged to up-convert the analogue signals to a radio frequency radio signal for forwarding to the antenna array or the at least one base station. | 02-02-2012 |
20120027066 | COMMUNICATION SYSTEM, APPARATUS AND METHODS FOR CALIBRATING AN ANTENNA ARRAY - A method for calibrating ( | 02-02-2012 |
20120044917 | COMMUNICATION SYSTEM, APPARATUS AND METHOD FOR ANTENNA ARRAY CONTROL - A wireless communication system comprises a network element ( | 02-23-2012 |