Abstract: 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.

Abstract: 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.

Abstract: Techniques are described for crest factor reduction in power amplifier circuits. For example, crest factor reduction can keep the peak signal level of a signal for transmission to below a peak threshold level associated with a power amplifier in the transmission path. The signal is received by the crest factor reduction system and clipped in accordance with the peak threshold level. Edge smoothing is then applied to the clipped signal to reduce out-of-band emissions. The edge smoothing is implemented by a moving average filter, such as a time-domain box filter. In some embodiments, a maximum operation or minimum operation is used to prevent signal peak regrowth after the filtering. Some embodiments also include various iteration loops to further improve crest factor reduction.

Abstract: Techniques are described for crest factor reduction in power amplifier circuits. For example, crest factor reduction can keep the peak signal level of a signal for transmission to below a peak threshold level associated with a power amplifier in the transmission path. The signal is received by the crest factor reduction system and clipped in accordance with the peak threshold level. Edge smoothing is then applied to the clipped signal to reduce out-of-band emissions. The edge smoothing is implemented by a moving average filter, such as a time-domain box filter. In some embodiments, a maximum operation or minimum operation is used to prevent signal peak regrowth after the filtering. Some embodiments also include various iteration loops to further improve crest factor reduction.

Abstract: Techniques are described for crest factor reduction in power amplifier circuits. For example, crest factor reduction can keep the peak signal level of a signal for transmission to below a peak threshold level associated with a power amplifier in the transmission path. The signal is received by the crest factor reduction system and clipped in accordance with the peak threshold level. Edge smoothing is then applied to the clipped signal to reduce out-of-band emissions. The edge smoothing is implemented by a moving average filter, such as a time-domain box filter. In some embodiments, a maximum operation or minimum operation is used to prevent signal peak regrowth after the filtering. Some embodiments also include various iteration loops to further improve crest factor reduction.

Abstract: Techniques are described for crest factor reduction in power amplifier circuits. For example, crest factor reduction can keep the peak signal level of a signal for transmission to below a peak threshold level associated with a power amplifier in the transmission path. The signal is received by the crest factor reduction system and clipped in accordance with the peak threshold level. Edge smoothing is then applied to the clipped signal to reduce out-of-band emissions. The edge smoothing is implemented by a moving average filter, such as a time-domain box filter. In some embodiments, a maximum operation or minimum operation is used to prevent signal peak regrowth after the filtering. Some embodiments also include various iteration loops to further improve crest factor reduction.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A hybrid device (100) includes both a IEEE-802.11e type WLAN client station (QAP) (102) and a BLUETOOTH piconet unit (104) interconnected such that the BLUETOOTH transmissions are scheduled to occur according to a transmission opportunity (TXOP) (126) that was granted by a quality of service (QoS) access point (QAP) (116) in a basic service set (BSS) (112). Requests for BLUETOOTH traffic are handled by the associated QSTA (102) which generates an add traffic service (ADDTS) (124) to the QAP.