Siemens Aktiengesellschaft

Nokia Siemens Networks Gmbh & Co Kg

Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Nokia Solutions and Networks Oy

Nokia Siemens Networks Oy

Nokia Solutions and Networks Gmbh & Co. Kg

Thomas Hindelang

Wolfgang Zirwas

Wen Xu

Bernhard Raaf

Sabine Roessel

Martin Goldberg

Helmut Heinz

Rupert Herzog

Oliver Cyranka

Thomas Stockhammer

Thomas Haustein

Ingo Viering

Aik Chindapol

Volker Jungnickel

Jürgen Michel

Andreas Lobinger

Joachim Hagenauer

Stefan Oestreich

Martin Doettling

Andreas Forck

Holger Gaebler

Alfredo Ruscitto

Christian Erben

It is disclosed a method comprising accommodating, in frequency domain, a first bandwidth of a first carrier signal with respect to a second bandwidth of a second carrier signal such that the first bandwidth adjoins to or overlaps the second bandwidth, the first bandwidth being greater than the second bandwidth.

Transmission and reception of a wideband signal with narrowband interference

It is disclosed a method including accommodating, in frequency domain, a first bandwidth of a first carrier signal with respect to a second bandwidth of a second carrier signal such that the first bandwidth adjoins to or overlaps the second bandwidth, the first bandwidth being greater than the second bandwidth. In a further aspect, prior to the transmission, the interference of the modulated second carrier signal is subtracted from each of the plurality of subcarrier signals of the first carrier signal.

In a method and/or an OFDM device for SC-FDMA data transmission, a sequence of input data is transformed by means of a discrete transformation as transformed data signals of coded and modulated data signals on first frequency channels into a first frequency space over a first number of frequencies. The transformed data signals are mapped on second frequency channels in a second frequency space with a larger second number of frequencies. The transformed data signals on the second frequency channels are inverse-transformed using an inverse transformation. Data inversely transformed in such a way are provided for transmission. The transformed data signals are mapped into a frequency range of the second frequency channels in such a way that a constant component of the transformed data signals is mapped centrally within the frequency range.

Method and/or OFDM device for SC-FDMA data transmission

Methods for receiving data sent by a first emitter of a mobile telephony system to a first resource element of a resource, via a receiver, radiopockets being created during the reception, and data which is not received during the creation of the radiopockets being reconstructed by the receiver are provided. The data which is not received by the first emitter is received by a second emitter, in a temporarally offset manner, on the same resource element of the resource, between the radiopockets, and is used to reconstruct the sequence of data. A conversion is especially advantageous for carrying out a receiving method in UMTS compression mode during the reception of data which is sent continuously independently of the compression mode.

Method for receiving data sent in a sequence in a mobile radio system with reception gaps

In a method for communicating by radio, a frequency band divided up into a plurality of subcarriers is used for the communication. Messages are sent from a base station to a user station and/or from the user station to the base station. Messages are processed at some times using a first FDMA method such as for example OFDMA and at other times using a second FDMA method such as for example IFDMA. A transmitter and a receiver implement the method.

Radio communication using OFDMA and IFDMA

A method for channel coding in a digital telecommunication system, the method having error protection coding and interleaving, a coherent puncturing and interleaving rule determined in a common calculation step being applied for puncturing of a predetermined error protection coding master code and the interleaving, the rule having been determined under the criterion of optimizing the distance properties after interleaving.

Method for channel coding

A method, base station and subscriber station which use recursive systematic codes (RSC codes) for channel coding in GSM mobile radio systems. In addition, these RSC codes also can be used on the basis of the hardware installed in existing GSM mobile radio systems. The RSC codes can be introduced during the introduction of an adaptive multirate coder.

Method base station and subscriber station for channel coding in a GSM mobile radio system

A method for a source-controlled channel-decoding of data in a frame format includes the steps of channel-decoding a given frame of data, determining an a-posteriori information based on a reliability decision of the channel-decoding and/or a source-decoding subsequent to the channel-decoding, calculating an a-priori information based on the a-posteriori information and based on a residual redundancy of the data, and channel-decoding the given frame once more using the a-priori information. The method thus uses the residual correlation between bits in a frame. The method preferably uses the intra-frame correlation in a GSM system. A channel-decoder configuration is also provided.

Source controlled channel decoding using an intra-frame

A frame error detection method includes the steps of determining a plurality of comparison values which include a given comparison value depending on a frame energy of a given speech frame or a change in frame energy between the given speech frame and a preceding speech frame. The given speech frame is identified as a bad speech frame if a logical combination of a plurality of criteria is met. One of the criteria is based on a comparison of a threshold value with the given comparison value depending on the frame energy or the change in frame energy. A device for frame error detection and a receiver including the device for frame error detection are also provided.

Method and device for frame error detection

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Fürstenfeldbruck, Germany

Thomas Hindelang