Abstract: Disclosed are example embodiments of cell detection in a mobile communications network. An example method includes performing a detection procedure in the mobile communications network, the detection procedure including correlating two M-sequences to generate two correlations, and combining the two correlations, each correlation expressed as a likelihood of a cyclic shift, combining the two correlations to form a likelihood of a SSS sequence; and performing a signature-based filtering to eliminate a cell detection false alarm peak, the signature-based filtering including comparing a known signature of a specific secondary synchronization signal SSS sequence going through the detection procedure.

Abstract: Disclosed are example embodiments of systems and methods for an interference imbalance manager (IIM). The method includes an outer loop that goes over the K subcarrier sets ki and an inner loop that goes over the M dominant intra-frequency cells that IC are performed on, for each subcarrier set ki the noise plus interference power estimate of that set is initialized by N by setting: N(ki)=N. The method includes, for each subcarrier set ki the IIM determine when the pilots of each cell m collide with that subcarrier set. When there is no collision, the interference plus noise of that set N(ki) is not adjusted. When there is a collision the interference plus noise of that set N(ki) is adjusted by removing the power contribution Em of that cell by applying the correction: N(ki)=N(ki)?Em. The method includes looping over all considered cells M and when all adjustments are complete to N(ki) for subcarrier set ki the program provides the adjusted N(ki) output and exits the m loop.

Abstract: The present disclosure relates to a method for installation of a phased array antenna receiving a signal, the method comprising: determining that a higher directivity of the phased array antenna is achievable; determining an orientation of the phased array antenna at which the higher directivity is achievable; and providing instructions for adjusting the orientation of the phased array antenna from an initial orientation to the determined orientation.

Abstract: Disclosed herein is a phased array antenna system that includes: a first array of antenna elements having a first and second antenna element; a second array of antenna elements having a third and fourth antenna element; a beamforming integrated circuit (IC) coupled to the first and second arrays; and a set of transmission lines coupling the beamforming IC to the first and second arrays. The first and second arrays are parallel to and facing in opposite directions of each other. The set of transmission lines is configured to delay radio frequency (RF) signals from the beamforming IC to first and third antenna elements.

Abstract: Disclosed herein is a phased array antenna system that includes: a first array of antenna elements having a first and second antenna element; a second array of antenna elements having a third and fourth antenna element; a beamforming integrated circuit (IC) coupled to the first and second arrays; and a set of transmission lines coupling the beamforming IC to the first and second arrays. The first and second arrays are parallel to and facing in opposite directions of each other. The set of transmission lines is configured to delay radio frequency (RF) signals from the beamforming IC to first and third antenna elements.

Abstract: A method for receiving repeated transmission of portions of data from a transmitter, the method comprising at a processor of a receiver, deriving a metric indicative of a desired PER of the received repeated portions of data, based on the desired PER of the received repeated portions of data at the receiver, deriving an optimal number of repetitions of each portion of the data to be received for successful decoding, wherein when the optimal number of repetitions have been received, decoding is to be activated; and further wherein the optimal number of repetitions is derived such that power consumption to successfully decode the data is minimized at the receiver.

Abstract: Disclosed are example embodiments of methods and systems for calibrating the second and third order intermodulation intercept points of a radio transceiver. The calibration circuit comprises: a common mode voltage (VCM) calibration circuit having a complementary to absolute temperature (CTAT) voltage node coupled to one or more VCM nodes of the radio transceiver, wherein the VCM calibration circuit is configured to adjust the CTAT voltage to reduce a third-order intermodulation (IM3) at an output of the radio transceiver; and a bulk terminal calibration circuit configured to bias one of a VBP and VBN voltages at one or more bulk terminals of one or more transistors of the RF circuit to reduce a second-order intermodulation (IM2).

Abstract: Embodiments described herein relate to a method of selecting a cell for communication over a network, the method comprising: determining a round trip delay (RTD) measurement from a device to each of a plurality of base stations, each of the plurality of base stations being in a respective one of a plurality of cells; ranking the plurality of cells based at least in part on the RTD measurements; selecting the highest-ranked cell; and initiating attachment to the selected cell.

Abstract: A method of securely resetting a first device comprising a UICC, the method comprising providing a secure reset control application to a secure element of the UICC of the first device wherein the secure reset control application is capable of commanding the UICC to provide notification indicative of a secure reset of the first device being requested if a corresponding signal is received from a remote management server; and/or communication between the secure reset control application and a remote management server cannot be established for a predetermined period of time and upon the next first device reset, determine whether a secure reset has been requested.

Abstract: A method of transmission for increasing communication channel capacity comprising superposing a first signal on a second signal to form a combined signal, wherein allocation of users of the communication channel to the first and second signals is based dynamically on channel conditions.

Abstract: An on-chip balun comprising a primary side, a secondary side, and an integrated notch filter.

Abstract: A method of evaluating OFDM synchronization between a transmitter and a receiver, the method carried out at the receiver and comprising, obtaining a non-coherent channel power estimate, obtaining a coherent channel power estimate, comparing the two estimates, and determining whether the receiver and the transmitter are synchronized based on the comparison.

Abstract: A method of dynamically changing the list size of a successive cancellation list (SCL) decoder, the SCL decoder arranged to decode data received from a wireless communications system, the method comprising at each successive cancellation stage of the SCL decoder, determining a path metric of each path of the SCL decoder, selecting a differential path metric threshold, and dynamically changing the list size of the SCL decoder based on the differential path metric threshold and the path metric of each path of the cancellation stage, such that decoding sensitivity of the decoder is maintained and/or latency and error-correction performance of the decoder are balanced.

Abstract: A duty cycle measuring circuit, the circuit comprising a synchronizer and a measurer, the synchronizer arranged such that when a signal to be measured comprising pulses having a pulse width and a pulse period is input to the synchronizer, synchronizing signals corresponding to each of pulse rising edge, pulse falling edge, pulse period start and pulse period end are output from the synchronizer, each synchronizing signal comprising a rising or falling edge, wherein the synchronizing signal outputs from the synchronizer are input to the measurer, and wherein the measurer is arranged to provide two measurement outputs based on the synchronizing signal inputs from the synchronizer, the measurement outputs comprising a first measurement output signal indicative of a pulse period measurement of the signal to be measured and a second measurement output signal indicative of a pulse width measurement of the signal to be measured.

Abstract: A crystal driving circuit comprising a circuit input node and a circuit output node, a high power amplifier having a power consumption of more than 100 ?W, a low power amplifier comprising a power consumption less than 10 ?W, the circuit being arranged to selectively isolate the high power amplifier and associated load capacitance from the circuit input node and the circuit output node.

Abstract: A method of selecting an intermediate frequency, IF, for use with a low-IF receiver, the method comprising determining a first frequency as the central frequency of the system bandwidth of the communication scheme used by the low-IF receiver, determining a second frequency as the central frequency of the bandwidth of the wanted signal to be received, selecting the sign of the IF to be used based on the first and second frequencies.

Abstract: A method of configuring an error correction engine, the method comprising determining the frequency of operation of the error correction engine, determining the size of the code to be error corrected, determining the time permitted in which to error correct the code, and based on the determining steps, configuring the number of active error correction processes within the error correction engine to be used to error correct the code.

Abstract: A method of transmission for increasing communication channel capacity comprising superposing a first signal on a portion of a second signal to form a combined signal, wherein the first signal comprises a repetition coded signal, and transmitting the combined signal. Also disclosed is a method of receiving a combined signal for increasing communication channel capacity comprising performing threshold detection on the combined signal wherein the combined signal comprises a first signal comprising a repetition coded signal superposed on a portion of a second signal and the threshold detection enables derivation of the second signal and the first signal prior to repetition coding.

Abstract: A phase locked loop comprising a time to digital converter and a fractional-n feedback loop, the PLL being configurable by a phase compensator module to reduce the dynamic range of the TDC required to maintain PLL performance.

Abstract: A method of synchronizing uplink between a UE and a cell, the method comprising determining PRACH capabilities of the UE, determining a negative timing offset for use with the transmission of at least one PRACH signal, determining an order for utilizing the negative timing offset, transmitting from the UE, at least one PRACH signal from a group of N PRACH signals, each of the at least one PRACH signals having a predetermined power level and transmitted by the UE at a time based on the negative timing offset, the order, and the PRACH capabilities of the UE.