Robert Boschgmbh

Nxp B.v.

Intel Corporation

Intel Mobile Communications Gmbh

Intel Mobile Communications Technology Dresden Gmbh

Commsolid Gmbh

Philips Semiconductors Dresden Ag

Intel Deutschland Gmbh

Gunnar Nitsche

Volker Aue

Tian Yan Pu

Rodolfo Mann Pelz

Peter Vogel

Dirk Lappe

Kaberi Banerjee

Michael Schmidt

Matthias Hofmann

Andreas Bury

Ralf Fischer

Tobias Weber

Thomas Fliess

Wilhelm Vogt

Frieder Mundt

Yubao Li

Oliver Vogt

Uwe Pross

Jee Hyun Kim

Kurt Gieske

Prabin Kumar Pandey

Peter Müller

Joachim Wolf

Peter Mueller

The invention discloses a method for fast detection scan of NB-IoT signals in networks. The object of the invention to provide a scanning procedure which is reliable and very fast in order to reduce the search time and hence the power consumption will be solved by a method for fast detection scan of NB-IoT signals in a network by applying a higher sampling rate than 240 kHz and observing a received signal at a receive bandwidth around a magnitude wider than the NB-IoT signal bandwidth of 180 kHz, wherein a set of 2M+1 NB-IoT signals each having a different E-UTRA absolute radio frequency channel number (EARFCN) can be observed simultaneously, whereas M is a natural number and 2M+1 indicates the number of concurrently observed channels.

Fast scan of NB-IoT signals in networks

A circuit may include at least one amplifier circuit configured to amplify a received signal having a first signal received in a first time interval and a second signal received in a second time interval. The first signal and the second signal are signals sent by a different number of coherent wireless signal sources. The circuit arrangement may further include at least one gain control circuit connected to the at least one amplifier circuit and configured to determine a first expected received signal strength of the first signal, to determine a second expected received signal strength of the second signal, and to determine a gain level based on the first and second expected received signal strengths. The at least one amplifier circuit may be configured to amplify the first signal using the determined gain level and to amplify the second signal using the determined gain level.

Circuit arrangement, mobile device and method for amplifying a signal

A method of processing a plurality of received digitized signals may include determining a plurality of cross-correlation coefficients for the plurality of received digitized signals; forming a cross-correlation coefficient vector including the plurality of cross-correlation coefficients; and determining an evaluation value for at least some of the plurality of cross-correlation coefficients. The determining the evaluation value may include: pre-selecting a predefined number of cross-correlation coefficients from the cross-correlation coefficient vector and deleting the pre-selected number of cross-correlation coefficients from the cross-correlation coefficient vector; after the pre-selection, determining an averaging value using at least one of the non-preselected cross-correlation coefficients of the cross-correlation coefficient vector; and determining the evaluation values based on the respective value of the pre-selected cross-correlation coefficient and the averaging value. The method may further include selecting one or more cross-correlation coefficients based on the determined evaluation values; and further processing based on the selected one or more cross-correlation coefficients.

Method of processing received digitized signals and mobile radio communication terminal device

A mobile radio communication terminal device may include at least one circuit configured to perform a method of processing received digitized signals, the method including determining a plurality of cross-correlation coefficients for the received digitized signal. Each of the plurality of cross-correlation coefficients may be determined by cross-correlating the received digitized signal with a respective candidate mobile radio local reference signal out of a plurality of pre-stored candidate mobile radio local reference signals. The at least one circuit may be further configured to select one or more cross-correlation coefficients from the determined plurality of cross-correlation coefficients and perform a mobile radio cell scan based on one or more of the selected cross-correlation coefficients, thereby determining a mobile radio communication network to connect to.

A hybrid device includes both an IEEE-802.11e type WLAN client station (QAP) and a BLUETOOTH piconet unit interconnected such that the BLUETOOTH transmissions are scheduled to occur according to a transmission opportunity (TXOP) that was granted by a quality of service (QoS) access point (QAP) in a basic service set (BSS). Requests for BLUETOOTH traffic are handled by the associated QSTA which generates an add traffic service (ADDTS) to the QAP.

Quality of service for WLAN and bluetooth combinations

A LTE compliant RF transceiver includes at least one transmit path and at least two receive paths. A switching arrangement connected between a transmit PLL synthesizer and at least one transmit path as well as between a receive PLL synthesizer and at least two receive paths allows the transmit PLL synthesizer to selectively be connected to the receive side of the transceiver as well as the receive PLL synthesizer to selectively be connected to the transmit side of the transceiver, thereby considerably increasing flexibility of the RF transceiver which enables both speed-up of handover procedures and power savings. A modem including the transceiver is also provided.

RF transceiver and modem comprising such a transceiver

An implementation relates to compensating DC offset in a signal path. The signal path may have a plurality of stages, where for each stage a fine DC compensation is performed by introducing a fine DC compensation signal into the signal path of the stage by way of a compensation analog to digital converter.

Fine RF transceiver DC offset calibration

A hardware accelerator module is driven by a system processor via a system bus to sequentially process data blocks of a data stream as a function of a parameter set defined by the processor. The module includes a register block adapted to receive parameter sets from the system processor, an accelerator core adapted to receive streaming data, to process data blocks of said streaming data in a manner defined by a parameter set, and to output processed streaming data, and a parameter buffering block adapted to consecutively store a plurality of parameter sets and to sequentially provide the parameter sets to the hardware accelerator core as a function of a busy state of the hardware accelerator core. The parameter buffering block enables to reduce downtimes of hardware accelerators, to increase data throughput, and to reduce the risk of a processor overload in a processor which drives several hardware accelerators.

Hardware accelerator module and method for setting up same

A hybrid device () includes both a IEEE-802.11e type WLAN client station (QAP) () and a BLUETOOTH piconet unit () interconnected such that the BLUETOOTH transmissions are scheduled to occur according to a transmission opportunity (TXOP) () that was granted by a quality of service (QoS) access point (QAP) () in a basic service set (BSS) (). Requests for BLUETOOTH traffic are handled by the associated QSTA () which generates an add traffic service (ADDTS) () to the QAP.

The invention relates to a method and a system for calibrating an analogue I/Q-modulator () of a transmitter (), wherein a calibration signal (s(t)) is transmitted and an in-phase signal (s(t)) and a quadrature-phase signal (s(t)) of the calibration signal (s(t)) are adjusted by at least one predetermined compensation coefficient (C, D, E) in two calibration steps in at least one compensation measurement set (u, V, W), whereby: &#x2014;in a first calibration step, the calibration signal (s(t)) is adjusted by a first complex compensation value (C, D, E) and an output signal of the detector circuit () is correlated with a harmonic (H, H) of said calibration signal (s(t)) to yield a first complex compensation measurement result (u, V, W), &#x2014;in a second calibration step, the calibration signal (s(t)) is adjusted by a second complex compensation value (C, D, E) and the output signal of the detector circuit () is correlated with said harmonic (H, H) of said calibration signal (s(t)) to yield a second complex compensation measurement result (u, V, W), &#x2014;a next optimum compensation value (C, D, E) of the complex compensation coefficient (C, D, E) is determined on said complex compensation values (C, C, D, D, E, E) and said complex compensation measurement results (u, U, V, V, W, W).

Method and system for calibrating an analogue I/Q-modulator of a transmitter

A radio receiver for receiving digital radio signals and a method for receiving digital radio signals are used for undertaking the conversion of digital audio signals to a preset clock pulse rate or clock pulse regulation. The digital asynchronous sampling rate conversion has an input buffer, a control system, a coefficient memory, an accumulator and an interpolator. The output signals of the sampling rate conversion are either passed on for playback or switched to a multimedia bus. The radio receiver and the method are suitable for also converting digital audio signals from sound carriers to a preset clock pulse rate.

Radio receiver for receiving digital radio signals and method for receiving digital radio signals

The invention, which relates to a method and an arrangement for interference compensation in a phase-locked loop comprising a voltage-controlled frequency generator, wherein the frequency generator is tuned to a nominal frequency by a tuning voltage Vand whose actual frequency is compared with a reference frequency by means of a frequency comparison and is re-adjusted if a deviation is detected via the frequency comparison, in which case, in the event of interference, the tuning voltage Vis changed by an interference voltage Vthat depends on the interference event, and thus a frequency deviating from the nominal frequency is generated, which deviating frequency is corrected again by the phase locked loop, is based on the object to provide a method and an arrangement for interference compensation in a phase-locked loop comprising a voltage-controlled frequency generator, with which a deviation from a predefined nominal frequency is avoided if known interference events occur. The object is achieved in accordance with the invention in a method whereby, if a known interference event occurs, a voltage Vwhich compensates for the interference voltage V, is generated in synchronism with this with sign inversion and is superimposed on the interference voltage V.

Method and arrangement for interference compensation in a voltage-controlled frequency generator

A communication device and a method for transmitting data in wireless local area networks is provided. The device and method are deployed in networks in which the data information elements include an element identification part, a length statement part and an information part. The device and method enable a broad range of data transmission rates and are full compatible with communicating units operating according to previous modes in which a first data transmission rule defines the acceptable range of values of element identification parts. In the method, a second data transmission rule is implemented in at least one of the communicating units to extend the acceptable range of values of element identifications. The range of values is extended so that a second standard portion of the element identification part marks the information element as a second information element.

Method and communication device for expanding the range of data transmission rates in wireless local area networks

Process for producing and evaluating a video data stream for video transmission

The process for data transmission between two stations by means of data blocks each having a synchronization pattern field (SYNC), a header field (HEADER) and an information field (INFORMATION) following the header field includes providing a header control field (HEX) following the header field (HEADER) in each of the data blocks for reconstruction of the header field when a transmission of the header field contains errors.

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Radebeul, Germany

Gunnar Nitsche