TABLE 1 enhanced Parameter Project 25 TETRA1 IDRA DIMRS TETRAPOL EDACS FHMA CDMA-PAMR GoTa data service spread A 50 Class A no Class A no Class A 39.8 No equalization Class A 52 Class A no Use of – – – – – – equalization Class 50 equalization equalization without equalizer needed Class Q 52 equalization See channels See – – capability (s)(6) Class B 55.5 Class B no Class B 65.5 Class B no specifications eliminates the specifications – – – – Class Q 111.1 equalization without equalizer equalization need for – Class Q N/A Class Q N/A Class Q no equalization in – – – equalization QAM channels. PSK channels same as TETRA1 Channel coding Integrated voice Convolutional Multirate trellis Multirate trellis Convolutional Control Variable rate Convolutional PCCC codes Convolution and data for with coding with coding with codes with BCH/repeat. convolutional with for the payload. codes and Turbo FDMA. interleaving plus interleaving plus interleaving plus interleaving plus Digital voice with long interleaving. Partitioned codes with BCH code for error detection detection error detection error detection custom with interleaving, Turbo codes block interleaving. network ID. and bit and bit repeat. selective priority codes for the Trellis codes for Prioritization/ prioritization Data repeat protection for header data. convolutional encoded voice Golay & codes with bits, partial Hamming codes interleaving plus repetition, and for voice. error detection channel state Reed-Solomon enhanced Viterbi codes for algorithm; error embedded detection (cyclic signals. redundancy Integrated voice check (CRC)) and data for TDMA. TBD for network ID. TBD for data. TBD codes for voice. TBD codes for embedded signals TABLE 1 TETRA Parameter Project 25 TETRA1 IDRA DIMRS TETRAPOL EDACS FHMA CDMA-PAMR enhanced data GoTa service
TABLE 1 Parameter Project 25 TETRA1 IDRA DIMRS TETRAPOL EDACS FHMA CDMA-PAMR enhanced data service GoTa spread equalization capability (s)(6) A – 50 Class – 50 Class A – no equalization Class B – 55.5 Class Q – 111.1 Class A – no equalization Class B – no equalization Class Q – N/A Class A – 39.8 without equalizer Class B – 65.5 without equalizer Class Q – N/A No equalization needed Class A – 52 Class Q – 52 Class A – no equalization Class B – no equalization Class Q – no equalization See specifications Use of channels eliminates the need for equalization in QAM channels. PSK channels same as TETRA1 See specifications Channel coding Integrated voice and data for FDMA. BCH code for network ID. Trellis codes for data. Golay & Hamming codes for voice. Reed-Solomon codes for embedded signals. Integrated voice and data for TDMA. TBD for network ID. TBD for data. TBD codes for voice. TBD codes for embedded signals Convolutional with interleaving plus error detection Multirate trellis coding with interleaving plus detection and bit Prioritization/ convolutional codes with interleaving plus error detection Multirate trellis coding with interleaving plus error detection and bit prioritization Convolutional codes with interleaving plus error detection Control BCH/repeat. Digital voice custom with repeat. Data repeat Variable rate convolutional with long interleaving, selective priority protection for encoded voice bits, partial repetition, and channel state enhanced Viterbi algorithm; error detection (cyclic redundancy check (CRC)) Convolutional with interleaving. Turbo codes PCCC codes for the payload. Partitioned block codes for the header Convolution codes and Turbo codes with interleaving. TABLE 1 Parameter Project 25 TETRA1 IDRA DIMRS TETRAPOL EDACS FHMA CDMA-PAMR TETRA enhanced data service GoTa
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