GMR Specifications » History » Version 1
laforge, 02/19/2016 10:50 PM
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| 2 | = ETSI GMR Specificatiosn = |
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| 3 | |||
| 4 | GMR (GEO-Mobile Radio) is a communication system specified at ETSI (European Telecommunications Standardization Institute). |
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| 5 | |||
| 6 | GMR is based heavily by GSM, which was also originally specified by ETSI. |
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| 7 | |||
| 8 | As there are so many areas of overlap and re-use between GSM and GMR, the GMR specifications in fact only |
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| 9 | specify the differences to the GSM system. Many GSM documents are referenced completely, others on a paragraph/chapter |
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| 10 | base. |
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| 11 | |||
| 12 | == Revisions == |
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| 13 | |||
| 14 | GMR comes in three revisions (so far) |
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| 15 | * GMR Release 1 (GMR-1) -- Voice telephony and SMS only |
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| 16 | * GMR Release 2 (GmPRS) -- Packet Data services similar to GPRS |
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| 17 | * GMR Release 3 (GMR 3G) |
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| 18 | |||
| 19 | == Specification Numbering Scheme == |
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| 20 | |||
| 21 | == Differences to GSM == |
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| 22 | |||
| 23 | * the GBCH for broadcasting GPS ephemeris data on the CCCH downlink ARFCN was introduced |
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| 24 | * the RACH request (Channel Request) includes GPS coordinates and the called number (in plaintext!) |
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| 25 | * there is a new A5/2 cipher variant, specific to GMR-1 |
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| 26 | * pi/4 QPSK modulation instead of GMSK |
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| 27 | * different bursts and TDMA multiplex / multi-frame |
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| 28 | * different speech codecs (lower bitrate), AMBE |
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| 29 | * new lower-bitrate TCH and SDCCH types (TCH3, TCH6, SDDCH3, SDCCH6) |
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| 30 | * LAPDm has a k=16 window size for outstanding unacknowledged segments (due to satellite delays) |
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| 31 | |||
| 32 | == Dictionary == |
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| 33 | |||
| 34 | GMR TS 01.201 gives a good overview about the terminology differences between GSM and GMR, specifically |
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| 35 | * BSC -> GSC |
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| 36 | * BSS -> GSS |
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| 37 | * BTS -> GTS |
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| 38 | * Cell -> Spot beam |
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| 39 | * GSM -> GMR |
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| 40 | * ME -> MES-ME |
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| 41 | * MS -> MES-MS |
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| 42 | * MSC -> GSS-MSC |
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| 43 | |||
| 44 | == List of specifications == |
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| 45 | |||
| 46 | === 01-Series === |
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| 47 | * 01.004 - Abbreviations and acronyms |
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| 48 | * 01.201 - Introduction to the GMR-1 family |
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| 49 | * 01.202 - GMR-1 General System Description |
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| 50 | |||
| 51 | === 02-Series === |
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| 52 | * 02.011 - Service accessibility (replaces GSM TS 02.11) |
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| 53 | |||
| 54 | === 03-Series === |
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| 55 | * 03.001 - Network functions (replaces GSM TS 03.01) |
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| 56 | * 03.002 - Network architecture (replaces GSM TS 03.02) |
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| 57 | * 03.003 - Numbering, addressing and identification (replaces GSM TS 03.03) |
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| 58 | * 03.008 - Organization of subscriber data (replaces GSM TS 03.08) |
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| 59 | * 03.011 - Technical realization of supplementary services (replaces GSM TS 03.11) |
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| 60 | * 03.012 - Location registration and position identification |
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| 61 | * 03.013 - Discontinuous reception (DRX) |
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| 62 | * 03.014 - DTMF |
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| 63 | * 03.020 - Security related network functions |
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| 64 | * 03.022 - MES in Idle Mode |
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| 65 | * 03.040 - SMS-PP |
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| 66 | * 03.041 - SMS-CB |
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| 67 | * 03.045 - G3 Fax |
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| 68 | * 03.050 - Transmission planning for speech service |
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| 69 | * 03.081 - Line identification SS |
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| 70 | * 03.088 - Call Barring SS |
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| 71 | * 03.090 - USSD |
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| 72 | * 03.296 - Terminal to Terminal Calls |
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| 73 | * 03.297 - Optimal Routing |
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| 74 | * 03.298 - High-penetration alerting |
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| 75 | * 03.299 - Position Reporting Services: Stage 2 Service Description |
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| 76 | |||
| 77 | === 04 Series === |
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| 78 | * 04.001 - MS-BSS Interface: General Aspects |
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| 79 | * 04.002 - PLMN reference configuration |
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| 80 | * 04.003 - MS-BSS Channel Structures and Access Capabilities |
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| 81 | * 04.004 - Layer 1 General requirements |
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| 82 | * 04.005 - Data Link Layer General Aspects |
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| 83 | * 04.006 - MS-BSS Data Link Layer specification (LAPSat) |
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| 84 | * 04.007 - MS-BSS Layer 3 General Aspects |
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| 85 | * 04.008 - Signalling Layer 3 General Aspects |
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| 86 | * 04.013 - Performance Requirements |
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| 87 | * 04.021 - Rate Adaption on the MS-BSS interface |
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| 88 | * 04.022 - RLP for Data and Telematic Services |
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| 89 | |||
| 90 | === 05 Series === |
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| 91 | * 05.001 - Physical Layer on the Radio Path |
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| 92 | * 05.002 - Multiplexing and Multiple Access |
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| 93 | * 05.003 - Channel Coding |
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| 94 | * 05.004 - Modulation |
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| 95 | * 05.005 - Radio Transmission and Reception |
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| 96 | * 05.008 - Radio Subystem Link Control |
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| 97 | * 05.010 - Radio System Synchronization |
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| 98 | |||
| 99 | === 06 Series === |
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| 100 | * 06.001 - Speech Processing Functions |
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| 101 | * 06.010 - Vocoder: Speehc Transcoding |
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| 102 | * 06.011 - Vocoder: Substitution and Muting of Lost Frames |
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| 103 | * 06.012 - Vocoder: Comfort Noise Aspects |
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| 104 | * 06.031 - Vocoder: Distcontinuous Transmission (DTX) |
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| 105 | * 06.032 - Vocoder: Voice Activity Detection (VAD) |
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| 106 | |||
| 107 | === 07 Series === |
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| 108 | * 07.001 - General on Terminal Adaption Functions (TAF) |
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| 109 | * 07.002 - TAF for Asynchronous Bearer Capabilities |
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| 110 | * 07.003 - TAF for Synchronous Bearer Capabilities |
