Abstract: The present invention relates to a method and system for communication in a mobile device. First and second OFDM symbols containing first and second received cell-specific reference subcarriers, respectively, are received. First and second received cell-specific reference subcarriers of the first and second OFDM symbols are extracted. A pair of received subcarriers is generated by computing the scalar product of the first received cell-specific reference subcarrier and the conjugate of the second received cell-specific reference subcarrier. A reference sequence is provided, that contains pairs of reference subcarriers for multiple, possible combinations of cell-IDs. The pair of received subcarriers is correlated with each pair of reference subcarriers of the reference sequence to generate cell-specific correlation values associated with each cell-ID of a plurality of cell-specific correlation values. The cell-ID of the strongest cell is determined by searching for the highest correlation value.

Abstract: A modem device for use in a wireless communications terminal comprises a plurality of functional units to perform signal processing tasks which are connected in a ring structure. Each of the functional units comprises a local processor, a plurality of hardware accelerators and a switching matrix connected between a data input of the respective functional unit and each of the sub-components. The local processor receives task instructions from a controller of the modem device over a first bus system that uses a first protocol which includes addressing, and in response to the task instructions configures the hardware accelerators and switches the switching matrix to selectively produce connections between the data input and the hardware accelerators in a manner to perform the intended task. Data flow occurs in a ring structure between said functional units and through each of the functional units using a second protocol without addressing.

Abstract: According to an aspect of this disclosure, a communication device is provided comprising a first interface configured to receive a first packet supplied by a packet encoder; a determiner configured to determine a time difference between the time at which the first packet is ready to be sent by the communication device and a time at which communication resources for sending the first packet are available; a generator configured to generate information from which it is derivable when a second packet should be provided by the packet encoder based on the time difference; and a second interface configured to transmit the information to the packet encoder.

Abstract: An LTE baseband receiver and a method for operating the receiver are provided. The receiver comprises a frequency selective interference estimator, an interference level averager and an interference assessor operative to control which output of the frequency selective interference estimator or the interference level averager is to be supplied to a soft-metric calculator. Frequency selectivity of the interference is assessed, and the best mode of interference estimation is selected to increase LTE receiver performance in loaded networks without impacting receiver performance in unloaded networks.

Abstract: According to an aspect of this disclosure, a radio communication device is provided comprising a first transceiver configured to transmit and receive signals in accordance with a Cellular Wide Area radio communication technology; a second transceiver configured to transmit and receive signals in accordance with a Short Range radio communication technology or a Metropolitan Area System radio communication technology; a first processor configured to control the first transceiver; and a second processor configured to control the second transceiver wherein the first processor is configured to control the first transceiver to transmit signals in accordance with a predefined transmitting schedule, wherein the first processor is further configured to control the first transceiver to omit transmitting signals within at least one of a time period and a frequency band provided for signal transmission of the first transceiver in accordance with the predefined transmitting schedule.

Abstract: A radio communication device is described having a first transceiver configured to transmit and receive signals in accordance with a Cellular Wide Area radio communication technology; a second transceiver configured to transmit and receive signals in accordance with a Short Range radio communication technology or a Metropolitan Area System radio communication technology; a first processor configured to control the first transceiver to transmit signals during a transmitting period, the transmitting period comprising a first time period, during which signals are transmitted, and a second time period, during which no signals are transmitted; and a second processor configured to control the second transceiver to transmit signals taking into account the transmitting period of the first transceiver such that the second transceiver transmits signals at least partially during the second time period.

Abstract: According to an aspect of this disclosure, a radio communication device is provided including a first transceiver configured to transmit and receive signals in accordance with a Cellular Wide Area radio communication technology; a second transceiver configured to transmit and receive signals in accordance with a Short Range radio communication technology; a first processor configured to control the first transceiver to receive and transmit data packets in accordance with a first data transmission frame; a second processor configured to control the second transceiver to receive and transmit data packets in accordance with a second data transmission frame; wherein the first processor is further configured to control the first transceiver such that the first transceiver does not transmit a data packet during at least a time period provided for a first transmission of a respective data packet transmitted by the second transceiver in accordance with the second data transmission frame.

Abstract: According to an aspect of this disclosure, a radio communication device is provided including: a first transceiver configured to transmit and receive signals in accordance with a Cellular Wide Area radio communication technology; a second transceiver configured to transmit and receive signals in accordance with a Short Range radio communication technology or a Metropolitan Area System radio communication technology; a processor configured to at least partially synchronize the receiving or transmitting of signals of the first transceiver with the receiving or transmitting of signals of the second transceiver such that at least one of at least a part of the receiving and a part of the transmitting of signals of the first transceiver and of the second transceiver is carried out at the same time.

Abstract: In a method for processing a signal received by a receiver, at a first wireless receiver (20, 62) a first signal (x(t), x1(t)) comprising first and second signal components is received. The first signal component is intended for the first wireless receiver (20, 62) and the second signal component is related to at least one of a sending signal (s(t)) generated by a transmitter (29, 69) or to a second signal (x2(t)) intended for a second wireless receiver (61). To the first wireless receiver (20, 62) a reference signal (r(t), r1(t), r2(t)) which is proportional to the sending signal (s(t)) or to the second signal (x2(t)). At the first wireless receiver (20, 62) and from the reference signal (r(t), r1(t), r2(t)) an estimation signal which estimates the second signal component is generated. A filtered signal (y(t), y1(t)) is generated by subtracting the estimation signal from the first signal (x(t), x1(t)).

Abstract: A method for detecting validity of downlink control information in telecommunication user equipment and a decoder and baseband receiver to perform the method are provided. The object of avoiding falsely detecting payload data and misinterpreting them is achieved by reverse encoding a bit output sequence of a Viterbi decoder; determining hard bits from a soft-bit input sequence of the decoder; determining a bit count of real received bits; comparing the reverse encoded bit stream to the determined hard bit stream and counting the number of mismatches to obtain an error count; comparing a bit error rate which is defined as a quotient of the error count and the bit count against a predefined threshold value; and rejecting the payload as invalid if said bit error rate is above said threshold value, even if a cyclic redundancy check of the payload gives a correct result.

Abstract: The invention relates to a method and a device for operation of two wireless services whereas a first service is broadcasting signals within burst with known time distances between the bursts and a second service is transmitting signals at least between a first partner and a second partner. The problem to be solved by the invention is to enable a user to use applications of at least to services concurrently at the same time with the same device. The problem is solved by an operation of one and the same device which is receiving bursts in a first mode of the first service and is switched from the first mode into a mode of the second service during the time between the bursts of the service.

Abstract: The invention relates to a circuit arrangement and to a method for testing same. A circuit arrangement is provided that includes a plurality of functional units which are coupled by at least one streaming data bus. Each of the functional units includes a plurality of hardware modules and a switch matrix. At least one of the streaming data busses is provided with a data width of at least that of the widest hardware module of any of the functional units of the circuit arrangement. The switch matrices are configurable to establish a streaming data path between and through the plurality of functional units which is used as a test link for any of the hardware modules of the circuit arrangement. The invention provides for non-intrusive real-time tracing in SoCs with a minimum of additional hardware resources and at low cost in terms of die size and power consumption.

Abstract: The invention relates to a method and a system for estimating a symbol time error in a broadband transmission system, comprising: - determination a timing error signal of an input-signal of a discrete Fourier-transformation block (5) in a data symbol stream on the basis of intersymbol correlation using a predetermined period in each received symbol, - selecting as a predetermined period a number of samples of different useful data parts of a symbol, - determining the time error value (?) based on the intersymbol interference of the selected samples of the different parts of said symbol.

Abstract: A method for reception of DVB-H signals wherein a MPEG transport stream is grouped into packets belonging to a certain IP data stream and forming bursts in time slices, the MPEG-TS is modulated into OFDM symbols, these symbols are grouped in frames, the frames themselves are grouped in superframes and symbols, frames and superframes are provided with numbers, whereas a transmitter does not change the transmission parameters (FFT mode, guard interval, code rate, modulation format) between successive bursts and a receiver is notified about a relative time from a first burst to transmission of the next burst and the receiver is switched off between the first and the next burst comprising: accurately calculating the receive time of the next burst from the DVBH delta-t time received in the first burst; setting a wake up timer and powering down the receiver; powering up the receiver for reception of the next burst exactly at the superframe boundary; executing signal acquisition; calculating the symbol number and fr

Abstract: A method and circuit for signal processing in a receiver that can be tuned to different carriers, the method determining the energy of the adjacent carriers N+1 and N?1, wherein a carrier N contains a signal of interest and the receiver is tuned to it, from the digital signal, in that the energy value of the carriers N+1 and N?1 determined are compared with a threshold value, and in the case where the threshold value is exceeded, a frequency shift of the signal by +?f or ??f is effected in the second method step prior to the filtering, and the frequency shift thus produced is reversed by a frequency shift by ??f or +?f prior to the filtering, and the signal is decoded.

Abstract: A method for detecting validity of downlink control information in telecommunication user equipment and a decoder and baseband receiver to perform the method are provided. The object of avoiding falsely detecting payload data and misinterpreting them is achieved by reverse encoding a bit output sequence of a Viterbi decoder; determining hard bits from a soft-bit input sequence of the decoder; determining a bit count of real received bits; comparing the reverse encoded bit stream to the determined hard bit stream and counting the number of mismatches to obtain an error count; comparing a bit error rate which is defined as a quotient of the error count and the bit count against a predefined threshold value; and rejecting the payload as invalid if said bit error rate is above said threshold value, even if a cyclic redundancy check of the payload gives a correct result.

Abstract: An apparatus is provided for a connection point between a paper-insulated electrical high-voltage cable, which is impregnated with an insulating medium which can flow, and a plastic-insulated electrical high-voltage cable, in which an end termination, which is surrounded by a pressure-resistant partition isolator (12), is provided at the end of the paper-insulated high-voltage cable, and in which the connection point of the conductors of the two high-voltage cables is surrounded by electrical screening elements and a sleeve body (18). The sleeve body (18) is in the form of an elongated, integral component composed of elastic insulating material with an aperture hole for holding the two high-voltage cables (3, 4), and the sleeve body (18) is equipped at its two axial ends, which are intended to hold the high-voltage cables (3, 4), with electrical control funnels (21, 22) which, in the fitted position, rest on electrically conductive layers of the two high-voltage cables (3, 4).

Abstract: Apparatus for a connecting point between high-voltage cables, each cable having a conductor, inner conductive layer, insulation, outer conductive layer, and a sheath over the outer conductive layer and in which the conductors, from which the surrounding layers have been removed, are conductively connected to one another. The arrangement has electrical screening elements and an integral elongated sleeve body, composed of elastic insulating material and a through-hole. The sleeve body has at its axial ends, which are intended for the cable to pass through, electrical control funnels which abut the outer conductive layers, from which the sheaths have been removed. The internal diameters of the through-hole in the sleeve body, at its axial ends, are for its use in a connecting point of cables, having an external diameter of their insulation which differs by at least 10 mm, different in a defined manner and adapted to the different external diameters.

Abstract: An LTE baseband receiver and a method for operating the receiver are provided. The receiver comprises a frequency selective interference estimator, an interference level averager and an interference assessor operative to control which output of the frequency selective interference estimator or the interference level averager is to be supplied to a soft-metric calculator. Frequency selectivity of the interference is assessed, and the best mode of interference estimation is selected to increase LTE receiver performance in loaded networks without impacting receiver performance in unloaded networks.

Abstract: A method for transferring data between a data source and a data sink which are controlled by a common clock provides a handshake-based streaming data protocol for intra-circuitry data transfer between and through functional units of a system built in an integrated circuit.