RF carrier spacing (kHz) 12.5 for 8K10F1E (C4FM) 6.25 for 5K76G1E (CQPSK) 25 25 25 12.5-10 6.25 evolution 25/12.5 25 1 250 25, minimum 1 230 (800 MHz) 1 250 (else) Maximum base station e.r.p. (W): – peak – average 500 500 Not specified. Typically 10100 W Not specified Typically 40-300 Not specified 250 25 200 200 Max. 10 W at antenna, with antenna gain below level required by regulation; average: 10 W(3) Not specified. Typically ERP (dBW) = 22 As TETRA 1 Peak : 105 (800 MHz band) Typical: 63 (800 MHz band) Peak: 60 (other bands) Typical: 36 (other bands) Nominal mobile station transmit power (W) Peak/average: – mobile – handheld from 10/10 to 110/110 from 1/1 to 5/5 Typically 3/5 to 10/25 Typically 1/2.5 to 1.8/4 –/2 Not specified 10.4/0.5 3.5/0.17 10/10 2/2 10/10-110/110 1/1-6/6 4/1.33(4) 0.6/0.2 0.2 Similar to TETRA 1 0.2-1 Cell radius (km): – handheld/ – suburban – mobile/rural 7.6-35 7.6 35 3.8-17.5 3.8 17.5 Not yet determined Not yet determined 20-40 5-40 (design dependent) 5 40 8-28 8 28 Design dependent Design dependent 7-13  50 Design dependent Maximum cell radius as in TETRA1 Design and deployment dependent Typically: 1.5, Maximum: 100 Area coverage technique Cellular channel reuse Simulcast Voting receivers Cellular channel reuse Quasi synchronous (Simulcast) Time-sharing transmission Diversity receivers Cellular channel reuse Diversity receivers (base) Cellular channel Diversity receivers Cellular channel reuse Simulcast Diversity receiver (Time-sharing transmission) Cellular channel reuse Simulcast Voting receivers Diversity receivers Cellular channel and sectorization(5) Diversity receivers, time synchronous Cellular channel reuse of 1 and sectorization Diversity receivers Cellular channel reuse and sectorization Diversity receivers (base station) Cellular channel reuse of 1and sectorization Diversity receivers
TABLE 1 Parameter Project 25 TETRA1 IDRA DIMRS TETRAPOL EDACS FHMA CDMA-PAMR TETRA enhanced data service GoTa Access method FDMA TDMA in development TDMA TDMA TDMA FDMA FDMA FHMA (TDMA/FHM) CDMA Multi-carrier modulation (MCM) TDMA CDMA Traffic channels/RF carrier: – initial – design capability Integrated and data modes FDMA: 1 TDMA: 2 @ 12.5 kHz TDMA: 4 @ 25 kHz FDMA: 1 TDMA: 2 or 4 4 6 6. 3, 12 6 6, 4, 3, 8, 12, etc. 1 1 1 1 3 Not specified See specifications and published standards As in TETRA1 See specifications and published standards 61 253 Transmission rate (kbit/s) Integrated voice and data modes FDMA: 9.6 TDMA 2-slot: TBD, ranging from 9.6-12 TDMA 4-slot: TBD, ranging from 22-24 700 MHz data only modes 50 kHz: 76.8-230.4 kbit/s 100 kHz: 153.6-460.8 kbit/s 150 kHz: 230.4-691.2 kbit/s 36 64 64 8 9.6 36.9 cdma2000-1x: 9.6 or 14.4 Support up to 1.8 Mbit/s uplink and 3.1 Mbit/s downlink cdma2000 HRPD: Support up to 1.8 Mbit/s per 1.25 MHz channel uplink and 4.9 Mbit/s per 1.25 MHz channel downlink 690 Maximum 9.6~153.6 Support up to 1.8 Mbit/s on the reverse link and up to 4.9 Mbit/s on the forward link
TABLE 1 Parameter Project 25 TETRA1 IDRA DIMRS TETRAPOL EDACS FHMA CDMA-PAMR TETRA enhanced data service GoTa Modulation FDMA integrated voice and data modes: QPSK-c family includes C4FM and CQPSK TDMA voice modes: 2-slot: TBD; QPSK-c family (includes C4FM and CQPSK) and CPM under consideration 4-slot: TBD; CPM under consideration 700 MHz modes 50 kHz: QPSK 100 kHz: 16QAM 150 kHz: 64QAM π/4-DQPSK M16-QAM (M = 4) M16-QAM (M = 4) GMSK GFSK π/4 SQPSK cdma2000-1x: BPSK, QPSK, 8-PSK uplink and QPSK, 8PSK, 16QAM downlink cdma2000 HRPD: BPSK, QPSK, 8-PSK uplink and QPSK, 16QAM, 64-QAM downlink 4-QAM, 16-QAM, 64QAM QPSK 8-PSK 16-QAM Traffic channel structure: – Basic rate speech codec: – Bit rate (kbit/s) – Error protection – Coding algorithm – Basic rate speech codec: – Bit rate (kbit/s) – Error protection FDMA 4.4 2.8 IMBE TDMA (2 and 4 slot) 2.450 proposed 1.150 proposed IMBE enhanced half rate 4.567 ACELP Bit rate with error protection is less than 7.467 Not specified 4.2 3.177 (6:1) 6 2 RPCELP 6.5 2.7 AME 4.4 5.596 IMBE/AMBE 9.6, 4.8, 2.4, and 1.2 EVRC and wideband), SMV As in TETRA1 9.6, 4.8, 2.4, 1.2 CRC EVRC band
1 Parameter Project 25 TETRA1 IDRA DIMRS TETRAPOL EDACS FHMA CDMA-PAMR TETRA enhanced data service GoTa Traffic channel structure (continued): – Alternative rate speech – Bit rate (kbit/s) – protection – Coding algorithm – Circuit mode data (kbit/s) – Protected – – Packet mode data N/A 6.1 9.6 IP – Internet protocol Rate tbd Up to 19.2 Up to 28.8 IP (Internet Protocol) N/A Up to 4.8/slot 7.467/slot (option) connectionless 8.0 6.7 VSELP (3:1) 7.2 None connectionless Supports IP and other network protocols Half rate codec tbd 4.8 7.2 Yes N/A N/A IP – Internet protocol Defined 4.8 9.6 connectionless oriented, standard TCP/IP N/A As in TETRA1 14.4,7.2,3.6,1.8 CRC Messaging X.400 Yes Yes Control channel structure (number of channel types): – Common control channel – Associated control channel – Broadcast control channel 2 3 2 2 3 2 1 2 1 (Option: 5) – Slot information channel: 1 – Primary control channel: 3 – Temporary control channel: 1 – Dedicated control channel: 1 – Associated control channel: 1 5 2 1 1 1 1 5 1 TDMA slot downlink control, 3 slot uplink access Slow associated, 450 bit/s; fast associated cycle stealing Provided See specifications As in TETRA1 As in TETRA1 As in TETRA1 See specifications 3 (for Common control channels) 1-7 (for Associated control channels) 1-7 (for Broadcast control channels) Q oriented,
TABLE 1 Parameter Project 25 TETRA1 IDRA TETRAPOL EDACS FHMA CDMA-PAMR TETRA enhanced data service GoTa Encipherment – security levels – – multikey – encipherment control – over the air rekeying Types 1, 2, 3 and 4 Yes Yes Yes Yes Air interface is exportable plus authentification. Plus end-to-end encryption user definable up to the highest level of security Yes Yes Yes Yes Not specified Allowed for Yes Yes Yes Yes Yes Type 1, 3, 4 Yes Yes No Yes Not specified, designed on a “provisions for” concept Yes See specifications As in TETRA1 Yes Yes Yes Yes Yes Handover Yes Yes Option Yes Yes Yes Yes Hand-off (Yes) Yes Yes Intersystem roaming capability Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Design capability for multiple operators (systems) in same area Yes Yes Yes Yes Yes Yes Allowed for Yes Yes Yes Direct mode Channel scan(7). Repeater. Trunking node gateway Dual watch(8). Repeater. Trunking mode gateway Not yet determined Allowed for Dual watch gateway Portable-mobile. Mobile-mobile. Mobile-base Not determined Yes As in TETRA1 since TEDS is integrated with TETRA1 Yes (Design dependent) mobile.
3.2 Packet mode connection-less data Connection-less Standard UDP/IP protocol using shared channels (statistical multiplexing) 9.6 kbit/s unprotected 4.8 kbit/s nominal protected 2.4, 1.2 kbit/s heavy protection Direct Internet connectivity (packet handler integrated in the FHMA network) 3.3 Circuit mode data services Circuit data Extended AT command set Character mode access to packet assembler/ disassembler (pad) (X.28/X.29) 9.6 kbit/s unprotected 4.8 kbit/s nominal protected 2.4, 1.2 kbit/s heavy protection Protected FAX Protected fax transmission using extended AT command set 4.8 to 14.4 kbit/s (3 slots) 3.4 Short message service Short messages units of 96 bytes with practically unlimited message length (random access is paired with subsequent allocations) Point-to-point and point-to-multipoint 3.5 High speed data Data Up to 3 TDMA and broadcast connections Protected 14.4 kbit/s Unprotected 28.8 kbit/s 3.6 Network application services FHMA provides the following network application services on the standard TCP/IP services: – Special data messages (SDM) – A and forward messaging service provides subscribers with additional message handling services such as: individual (IDM) and group (GDM) messages, registered, special delivery messages. These services are all accessed through special communications APIs; – Modem-like (Hayes compatible) communication services (PCCA/AT) that enable subscribers to use standard modem communication commands (AT/PCCA); – AVL – Fleet management based on GPS (Etak application on PC) running from subscriber unit (SU), PSTN or leased-line access. 3.7 Supplementary services CF Call forward – unconditioned or conditioned (busy, no reply, not reachable) CW Call waiting – incoming call notification during connection LE Late entry – allow late comers to join a multipoint voice call EC Emergency fleet group call
FD Fast dialing (numbers allocated per fleet) CLI Calling/called party identification presentation CR Call report – leave identity to non-available called party for subsequent call back TPI Talking party indication – inform all party about the identity of the active party in a multipoint connection LSC List search call – distribute a call to the available subscriber in a list of attendants CAD Call authorized by dispatcher – involve operator upon restricted access SNA Short number addressing – use short abbreviations AS Area select – establish a call to other party only if it is located inside a selected area AP Access priority – priority level used to allocate resources in congested networks PC Priority call – give preference in resource allocation CH Call hold – interrupt ongoing call but keep the resources engaged CCBS Call completion to busy subscriber – attempt to complete the call later ToC Transfer of control – transfer ownership of a multipoint call PPC Preemptive priority call – as PC but allows disconnecting ongoing calls in order to allocate resources IC Include call – involve a party in an active call BC Barring call – incoming or outgoing call bearing AoC Advice of charge – charge indication to end-user DL Discreet listening – facility, which allows tapping into calls AL Ambiance listening – activating the terminal transmission without giving an indication to the end user DGNA Dynamic group number assignment – facility for group creation Attachment 2 to Appendix 7 Procedures and interfaces 1 Procedures Handover Mobile controlled handover Mobility management Air interface: FHMA standard procedures Location registers: Standard MAP based (HLR/VLR) Call management Air interface: FHMA standard procedures MSC interworking: SS7-ISUP/TUP based with additions necessary for management of voice group calls
The link adaptation algorithms will adjust the bit rate to the packet data throughput to the distance from the base station and the prevailing propagation conditions at different locations in the cell. 3.1.8 TEDS throughput Not all combinations of channel bandwidth, modulation type and coding rate are permitted in TEDS channels. The combinations have been limited to those shown in the second column of Table 5. This table also provides an estimate of the throughput, after allowance is made for the pilot symbols, channel coding and lower layer protocol headers and functions. These are technically the “TL-SDU” bit rates, but are close to the true bit rates available to user IP packets in good channel conditions. TABLE 5 Permissible modulation type/coding rate pair and expected throughput in each channel bandwidth Channel width Modulation type and coding rate TEDS channel throughput (kbit/s) 25 kHz /4-DQPSK r = 2/3 14.8 r = 2/3 24.3 4-QAM r = ½ 11 16-QAM r = ½ 22 64-QAM r = ½ 33 64-QAM r = 2/3 44 64-QAM r = 1 66 50 kHz 4-QAM r = ½ 27 16-QAM r = ½ 54 64-QAM r = ½ 80 64-QAM r = 2/3 107 64-QAM r = 1 160 100 kHz 4-QAM r = ½ 58 16-QAM r = ½ 116 64-QAM r = ½ 175 64-QAM r = 2/3 233 64-QAM r = 1 349 150 kHz 4-QAM r = ½ 90 16-QAM r = ½ 179 64-QAM r = ½ 269 64-QAM r = 2/3 359 64-QAM r = 1 538 3.2 TEDS higher protocol layers Figure 30 shows the TEDS air interface protocol stack and its relation to IP applications. Note that TEDS services are IP based. TETRA voice channels and circuit mode data (at speeds up to 28.8 kbit/s) are only available in an integrated TETRA1 part. These services share the enhanced MAC layer of Fig. 30. For ease of compatibility TEDS uses the same control channel as the existing TETRA standard. The details of the TEDS standard are in [ETSI].