A software radio view of modulation and spreading for UTRA FDD and UTRA TDD
A software radio view of modulation and spreading for UTRA FDD and UTRA TDD
- Author(s):
- DOI: 10.1049/cp:20020440
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- Author(s): Source: Third International Conference on 3G Mobile Communication Technologies, 2002 p. 464 – 468
- Conference: Third International Conference on 3G Mobile Communication Technologies
- DOI: 10.1049/cp:20020440
- ISBN: 0 85296 749 7
- Location: London, UK
- Conference date: 8-10 May 2002
- Format: PDF
We present a unified view of modulation and spreading for both UTRA FDD and UTRA TDD in the digital baseband. Particular aspects such as monocode and multicode transmission, symbol mapping for uplink and downlink as well as spreading and despreading are discussed in detail. Parameterized software radio is employed to realize all necessary layer 1 signal processing blocks. We develop a systematic view of symbol mapping and spreading which is based on the processing of hierarchical data field structures and which exhibits a remarkable symmetry with respect to transmitter and receiver. This symmetry is only revealed if both monocode and multicode are being addressed by a single simulation setup. We provide a brief review of the respective software radio concepts in order to give a better understanding of our approach.
Inspec keywords: software radio; radio access networks; signal processing; quadrature amplitude modulation; phase shift keying; frequency division multiplexing; 3G mobile communication; time division multiplexing
Subjects: Modulation and coding methods; Mobile radio systems; Radio access systems; Communication switching; Signal processing and detection
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