Abstract: In various embodiments of the present disclosure, there is provided a method for determining precoding matrixes for a communication of a first base station and a second base station with a first mobile station and a second mobile station. Precoding matrixes for a plurality of signal channels between the base stations and the mobile stations are determined based on a signal to noise ratio (SNR) consideration. Accordingly, the method can include determining a first set of precoding matrixes based on a predetermined consideration of SNR between the first base station and the second base station and the first mobile station and the second mobile station and generating a second set of precoding matrixes based on the first set of precoding matrixes. A corresponding system for carrying out a determination of precoding matrixes is provided.

Abstract: A decoding circuit including a data buffer comprises a plurality of storage elements for storing data symbols, a processing circuit comprising a plurality of inputs and outputs, wherein the processing circuitry is configured to process data symbols received via the plurality of inputs and outputs. First and second decoding parameters are determined by a decoding rule and wherein the first and the second decoding parameters are not changed throughout the decoding process.

Abstract: In various embodiments of the present disclosure, there is provided a method for determining precoding matrixes for a communication of a first base station and a second base station with a first mobile station and a second mobile station. Precoding matrixes for a plurality of signal channels between the base stations and the mobile stations are determined based on a signal to noise ratio (SNR) consideration. Accordingly, the method can include determining a first set of precoding matrixes based on a predetermined consideration of SNR between the first base station and the second base station and the first mobile station and the second mobile station and generating a second set of precoding matrixes based on the first set of precoding matrixes. A corresponding system for carrying out a determination of precoding matrixes is provided.

Abstract: A method of transmitting data to a receiver, wherein the data is transmitted using a plurality of sub-carriers, is provided. The method provided includes determining, for each sub-carrier and for each of a plurality of combinations of the sub-carrier and an antenna of a plurality of antennas to be used for transmitting the data, a transmission characteristic of a transmission of the sub-carrier using the antenna; and selecting, for each sub-carrier, an antenna of the plurality of antennas to be used for the transmission of the sub-carrier based on the transmission characteristic of the transmission of the sub-carrier between the antenna and the receiver.

Abstract: A method of allocating frequency ranges to at least one communication device is provided. The method comprises determining available frequency ranges within a plurality of frequency ranges, combining the available frequency ranges to at least one combined logical frequency range, and allocating the at least one combined logical frequency range to the at least one communication device.

Abstract: A method of determining available frequency ranges for at least one communication device is provided. The method comprises providing a downlink transmission time interval, determining available frequency ranges within a plurality of frequency ranges after the downlink transmission time interval, and providing an uplink transmission time interval after the determining of the available frequency ranges.

Abstract: A method of communication comprising: determining whether a mobile station (MS) is within a collaborative zone with respect to a first base station (BS1), if the MS is within the collaborative zone (704): the BS1 transmitting one or more collaboration parameters to a network coordinator (706), the network coordinator determining one or more collaborative base stations depending on the collaboration parameters, the network coordinator transmitting control parameters to the BS1 and the one or more collaborative base stations (BS2) (708), and the BS1 transmits via wired backhaul the data to be transmitted to the MS and channel information between the MS and the BS1 in accordance with the control parameters to the BS2 (710), the BS1 and the BS2 collaboratively transmitting data to the MS in accordance with the control parameters (712). Also an integrated circuit, a mobile station, a base station and a network coordinator.

Abstract: A decoding circuit including a data buffer comprises a plurality of storage elements for storing data symbols, a processing circuit comprising a plurality of inputs and outputs, wherein the processing circuitry is configured to process data symbols received via the plurality of inputs and outputs. First and second decoding parameters are determined by a decoding rule and wherein the first and the second decoding parameters are not changed throughout the decoding process.

Abstract: A multiple access communication system is disclosed herein. In a described embodiment, there is disclosed a method of allocating system bandwidth of the communication system and the method comprises, at step (402), dividing the system bandwidth of the multiple access communication system to form resource blocks amongst which there is one or more pairs symmetric at a carrier frequency; at step (404), assigning a value to each resource block based on the channel qualities and the correlation between the resource block and its counterpart resource block symmetric to the carrier frequency; and at step (406), the symmetric resource blocks are mapped to form respective resource groups based on the values for allocation to respective mobile devices for signal transmission.

Abstract: A method for determining a signal vector comprising a plurality of components from a received signal vector is provided comprising generating an estimation of the signal vector; determining a channel matrix characterizing the communication channel via which the signal vector was received; carrying out a plurality of determination iterations based on the channel matrix, wherein for each iteration a first set of possible sub-vectors of the signal vector is determined based on a second set of possible sub-vectors for the previous iteration and from the first set of possible sub-vectors, a number of sub-vectors is selected based on the distance of the sub-vectors to the estimated signal vector according to a pre-selected metric to form a strict subset of the first set as the second set of possible sub-vectors for the iteration; determining the signal vector based on a possible sub-vector for the last iteration.

Abstract: A communication device is provided, the communication device comprising a receiving circuit configured to receive a message from another communication device; a time base circuit providing a time base signal that specifies a plurality of time periods; a determining circuit configured to determine, based on an expected reception time of the message and a reception time of the message, a parameter value characterizing a time base offset between the communication device and the other communication device; an offset generating circuit configured to generate a time period offset value specifying a time offset from a point in time, the time period offset value corresponding to a number of time periods from the plurality of time periods, wherein the number of time periods is determined according to the parameter value.

Abstract: A method for determining whether a transmission signal comprising a cyclic prefix is present in a received signal is described which includes determining a plurality of received signal values from the received signal; forming a plurality of different pairs of the received signal values based on a predefined periodicity of the cyclic prefix; determining a correlation term value for each of the plurality of pairs of the received signal values; and determining whether a data signal is present in the received signal based on a combination of the correlation term values.

Abstract: A method for decompressing at least two two-valued symbol sequences into a three-valued communication sequence is described comprising converting a first two-valued symbol sequence into an intermediate symbol sequence and symbol-wise multiplying the intermediate symbol sequence with the second two-valued symbol sequence to generate the three-valued communication sequence.

Abstract: A method for transmitting OFDM symbols by a plurality of ad-hoc radio communication devices in an ad-hoc radio communication devices' group is provided. The method includes a first ad-hoc radio communication device of the ad-hoc radio communication devices' group transmitting a first OFDM symbol in a first frequency sub-range of a frequency range selected for transmission in accordance with a frequency hopping pattern, the frequency range comprising a plurality of frequency sub-ranges, and in the same transmission time period, a second ad-hoc radio communication device of the ad-hoc radio communication devices' group transmitting a second OFDM symbol in a second frequency sub-range of the frequency range, wherein the second frequency sub-range is different from the first frequency sub-range.

Abstract: A method of transmitting data to a receiver, wherein the data is transmitted using a plurality of sub-carriers, is provided. The method provided includes determining, for each sub-carrier and for each of a plurality of combinations of the sub-carrier and an antenna of a plurality of antennas to be used for transmitting the data, a transmission characteristic of a transmission of the sub-carrier using the antenna; and selecting, for each sub-carrier, an antenna of the plurality of antennas to be used for the transmission of the sub-carrier based on the transmission characteristic of the transmission of the sub-carrier between the antenna and the receiver.

Abstract: A method for detecting a first symbol sequence in a data signal is described comprising receiving the data signal in which the first symbol sequence should be detected, wherein the first symbol sequence is expressable as the kronecker product of a second symbol sequence and a third symbol sequence; correlating the first symbol sequence with the third symbol sequence to generate a first correlation result; generating a second correlation result by correlating a fourth symbol sequence derived from the first correlation result with a fifth symbol sequence derived from the second symbol sequence by a transformation that maps all negative symbols of the second symbol sequence to non-negative symbols; and generating a detection result based on the second correlation result.

Abstract: A method for estimating a signal transmitted via a communication channel from a signal received via the communication channel, is described comprising carrying out a channel-dependent transformation of the received signal; and iteratively determining, channel-independently, an estimate for the transmitted signal on the basis of the transformed received signal.

Abstract: A method for decompressing at least two two-valued symbol sequences into a three-valued communication sequence is described comprising converting a first two-valued symbol sequence into an intermediate symbol sequence and symbol-wise multiplying the intermediate symbol sequence with the second two-valued symbol sequence to generate the three-valued communication sequence.

Abstract: A method for transmitting data between a communication network unit and a plurality of communication devices is provided, comprising using a plurality of carrier signals grouped into at least one carrier signal group, determining a subset of communication devices of the plurality of communication devices, and using the at least one carrier signal group for data transmission between the communication network and the communication devices of the subset of communication devices.

Abstract: A method of determining available frequency ranges for at least one communication device is provided. The method comprises providing a downlink transmission time interval, determining available frequency ranges within a plurality of frequency ranges after the downlink transmission time interval, and providing an uplink transmission time interval after the determining of the available frequency ranges.