Abstract: An electronic device may be provided with an antenna, a receiver, and baseband circuitry coupled to the receiver over a digital interface. The receiver may receive radio-frequency signals using the antenna and may generate digital in-phase and quadrature-phase (I/Q) samples from the radio-frequency signals. The I/Q samples may have a bit width and may be transmitted to the baseband circuitry over the digital interface. The baseband circuitry may evaluate a radio condition of the receiver based on the I/Q samples. The baseband circuitry may adjust the bit width of the I/Q samples based on the radio condition. For example, the baseband circuitry may decrease the bit width when wireless performance metric data falls below a threshold and/or may increase the bit width when the wireless performance metric data exceeds a threshold. This may minimize power consumed by the digital interface without sacrificing wireless performance.

Abstract: A receiver for reducing an interference component in a receive signal is provided. The interference component is caused by a first interferer emitting payload data and a second interferer emitting only broadcast data for communication control. The receiver includes a first compensation circuit configured to generate a first compensation signal based on a component of the receive signal received from the first interferer. Further, the receiver includes a second compensation circuit configured to generate a second compensation signal based on only a-priori knowledge of at least one broadcast channel carrying the broadcast data, or based on a detection of symbols in the receive signal which represent the broadcast data. The detection of symbols is based on only the a-priori knowledge of the at least one broadcast channel. The receiver also includes a combination circuit configured to combine the receive signal, the first compensation signal and the second compensation signal.

Abstract: A receiver for reducing an interference component in a receive signal is provided. The interference component is caused by a first interferer emitting payload data and a second interferer emitting only broadcast data for communication control. The receiver includes a first compensation circuit configured to generate a first compensation signal based on a component of the receive signal received from the first interferer. Further, the receiver includes a second compensation circuit configured to generate a second compensation signal based on only a-priori knowledge of at least one broadcast channel carrying the broadcast data, or based on a detection of symbols in the receive signal which represent the broadcast data. The detection of symbols is based on only the a-priori knowledge of the at least one broadcast channel. The receiver also includes a combination circuit configured to combine the receive signal, the first compensation signal and the second compensation signal.

Abstract: A communication device is provided that includes a receiver configured to receive a signal. The communication device further includes a determination circuit configured to determine a data packet of the received signal based on a predefined packet structure. The communication device further includes a decoder configured to determine a key information. The decoder is configured to decode a first portion of the data packet based on the key information, to determine a redundancy information of a second portion of the data packet and to verify a packet information of the first portion and the second portion based on the redundancy information. The communication device further includes a detection circuit configured to detect an interference signal of the received signal and to activate the decoder if the interference signal is detected.

Abstract: A communication device is provided that includes a receiver configured to receive a signal. The communication device further includes a determination circuit configured to determine a data packet of the received signal based on a predefined packet structure. The communication device further includes a decoder configured to determine a key information. The decoder is configured to decode a first portion of the data packet based on the key information, to determine a redundancy information of a second portion of the data packet and to verify a packet information of the first portion and the second portion based on the redundancy information. The communication device further includes a detection circuit configured to detect an interference signal of the received signal and to activate the decoder if the interference signal is detected.

Abstract: An apparatus for determining cell-specific reporting signals of a multi-carrier cellular network includes a measurement unit configured to measure a plurality of reception qualities in a mobile device, wherein each reception quality indicates a reception quality of a specific carrier of a specific cell. Further, the apparatus includes a reporting signal generation unit configured to generate the reporting signal of a specific cell based on the plurality of reception qualities for a plurality of carriers of the specific cell.

Abstract: A method and transmitter are disclosed. The method includes encoding data according to a space time transmit diversity scheme and spatial-multiplexing the encoded data. The transmitter includes first and second units. The first unit is configured to encode data according to a space time transmit diversity scheme and the second unit is configured to spatial-multiplex encoded data. The transmitter is configured to operate in an operating mode in which data is processed by the first unit and the second unit.

Abstract: A method includes receiving a signal transmitted by a transmitter, wherein the transmitter transmits with a transmit power and the signal includes a pilot signal transmitted by the transmitter with a fraction of the transmit power. The method further includes equalizing the received signal, determining a despread pilot signal based on the equalized signal, and determining the fraction of the transmit power based on the despread pilot signal.

Abstract: A method includes receiving a signal transmitted by a transmitter, wherein the transmitter transmits with a transmit power and the signal includes a pilot signal transmitted by the transmitter with a fraction of the transmit power. The method further includes equalizing the received signal, determining a despread pilot signal based on the equalized signal, and determining the fraction of the transmit power based on the despread pilot signal.

Abstract: A device for decoding code symbols which are interfered with a distortion during a predetermined distortion time interval includes a reliability information generator to provide reliability information based on the code symbols and a decoder to decode the code symbols into code words. The decoder is configured to decode the code symbols based on weighted reliability information, wherein the weighted reliability information is generated from the reliability information by applying a first weight during times not coinciding with the distortion time interval, and by applying a second weight different from the first weight during times coinciding with the distortion time interval.

Abstract: A radio receiver includes an input terminal to receive a first radio signal, an equalizer, coupled to the input terminal, to equalize the first radio signal and to output an equalized signal and a first channel estimator, coupled to the input terminal and the equalizer, to estimate first channel parameters by using the first radio signal and a signal derived from the equalized signal. The radio receiver may contain a controller implementing a HARQ protocol and a HARQ buffer to store likelihood information based on the equalized signal. The radio receiver may contain a reconstruction unit to provide the signal derived from the equalized signal based on a content of the HARQ buffer.

Abstract: A method and system for link quality metric based antenna selection for transceiver are disclosed. In one embodiment, a method for selecting an antenna from multiple antennas associated with a receiver, includes receiving multi-carrier modulated signals via a currently active antenna of the receiver, and estimating a predicted packet error rate (PER) associated with a current receive path of the receiver. The current receive path is used to process the multi-carrier modulated signals. The method further includes selecting a next antenna from the multiple antennas for forming a next receive path of the receiver based on the predicted PER and a packet error history associated with at least one previous receive path.

Abstract: A method includes encoding data according to a space time transmit diversity scheme and spatial-multiplexing the encoded data.

Abstract: A device for decoding code symbols which are interfered with a distortion during a predetermined distortion time interval includes a reliability information generator to provide reliability information based on the code symbols and a decoder to decode the code symbols into code words. The decoder is configured to decode the code symbols based on weighted reliability information, wherein the weighted reliability information is generated from the reliability information by applying a first weight during times not coinciding with the distortion time interval, and by applying a second weight different from the first weight during times coinciding with the distortion time interval.

Abstract: A radio receiver includes an input terminal to receive a first radio signal, an equalizer, coupled to the input terminal, to equalize the first radio signal and to output an equalized signal and a first channel estimator, coupled to the input terminal and the equalizer, to estimate first channel parameters by using the first radio signal and a signal derived from the equalized signal. The radio receiver may contain a controller implementing a HARQ protocol and a HARQ buffer to store likelihood information based on the equalized signal. The radio receiver may contain a reconstruction unit to provide the signal derived from the equalized signal based on a content of the HARQ buffer.

Abstract: A method and system for link quality metric based antenna selection for transceiver are disclosed. In one embodiment, a method for selecting an antenna from multiple antennas associated with a receiver, includes receiving multi-carrier modulated signals via a currently active antenna of the receiver, and estimating a predicted packet error rate (PER) associated with a current receive path of the receiver. The current receive path is used to process the multi-carrier modulated signals. The method further includes selecting a next antenna from the multiple antennas for forming a next receive path of the receiver based on the predicted PER and a packet error history associated with at least one previous receive path.