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52635238ed0034b86d0c8db6cb063ce2 | 102 035 | 10.3 Specific inconsistencies in EMMG protocol | The client_id value is not the same as the one in channel_setup on the current TCP connection. Data_id parameter value in a stream_status message or in a data_provision message is different from the one given in the stream_setup message for the same stream_id (V2 only). In a channel_status message the section_TSPkt_fla... |
52635238ed0034b86d0c8db6cb063ce2 | 102 035 | 10.4 Specific inconsistencies in C(P)SIG protocol | The protocol_version value is not 2. The transaction_id parameter value in a response is different from the one of the associated request. If this parameter value is out of range, the "Invalid value for a DVB parameter" error is issued. In a channel_status message the (P)SIG or C(P)SIG specific parameter values are not... |
52635238ed0034b86d0c8db6cb063ce2 | 102 035 | 11 Redundancy management | |
52635238ed0034b86d0c8db6cb063ce2 | 102 035 | 11.1 Uniqueness concept | This clause sums up uniqueness rules for some parameters as given in TS 103 197 [6]. |
52635238ed0034b86d0c8db6cb063ce2 | 102 035 | 11.1.1 ECMG protocol | Super_CAS_id (TS 103 197 [6], clause 5.3) The Super_CAS_ID […] shall identify uniquely a (set of) ECMG(s) for a given SCS […] ECM_channel_id (TS 103 197 [6], clause 5.1.2).There is always one (and only one) channel per TCP connection. (TS 103 197 [6], clause 5.3) The ECM_channel_ID is allocated by the SCS and uniquely ... |
52635238ed0034b86d0c8db6cb063ce2 | 102 035 | 11.1.2 EMMG/PDG protocol | client_id (TS 103 197 [6], clause 6.2.3) The client_id […] shall identify uniquely an EMMG/PDG across all the EMMGs/PDGs connected to a given MUX. To facilitate uniqueness of this value, the following rules apply: • in the case of EMMs or other CA related data, the two first bytes of the client_id should be equal to th... |
52635238ed0034b86d0c8db6cb063ce2 | 102 035 | 11.2 Basic redundancy scenarios | |
52635238ed0034b86d0c8db6cb063ce2 | 102 035 | 11.2.1 Definitions | Basic redundancy of a device "Basic redundancy of a device" means that a spare device is available but not yet in operational use when a failure occurs. A spare device can be in various states from staying on a shelf up to being ready for moving to operational use. CAS Manager The CAS Manager is the function allowing t... |
52635238ed0034b86d0c8db6cb063ce2 | 102 035 | 11.2.2.1 SCS redundancy | The SCS redundancy is managed by the head-end Manager. When the SCS fails or is stopped, current links between SCS and ECMG are broken: stream(s), channel(s) and TCP connection(s) are closed. After TCP connection closure, the ECMG shall be ready for being connected by any SCS. The spare SCS is given internally by the h... |
52635238ed0034b86d0c8db6cb063ce2 | 102 035 | 11.2.2.2 ECMG redundancy | The ECMG redundancy is managed by both head-end Manager and CAS Manager. When the ECMG fails or is stopped, current links between SCS and ECMG are broken: stream(s), channel(s) and TCP connection(s) are closed. After TCP connection closure, the SCS is given by the head-end Manager the IP address and the TCP port of a s... |
52635238ed0034b86d0c8db6cb063ce2 | 102 035 | 11.2.3.1 EMMG redundancy | The EMMG redundancy is managed by the CAS Manager. When the EMMG fails or is stopped, current links between EMMG and MUX are broken: stream(s), channel(s) and TCP connection(s) are closed. If any the UDP port remains available. After TCP connection closure, the MUX shall be ready for being connected by any EMMG. ETSI E... |
52635238ed0034b86d0c8db6cb063ce2 | 102 035 | 11.2.3.2 MUX redundancy | The MUX redundancy is managed by both CAS Manager and head-end Manager. When the MUX fails or is stopped, current links between EMMG and MUX are broken: stream(s), channel(s) and TCP connection(s) are closed. After TCP connection closure, the EMMG is given by the CAS Manager the IP address, the TCP port, and the IP add... |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 1 Scope | The present document specifies the essential electrical requirements for circular polarization fixed beam antennas to be utilized with MultiPoint (MP) systems, including central station, repeater stations, and terminal station applications, operating in frequency bands from 1 GHz to 11 GHz. These systems use various mu... |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 2 References | For the purposes of this Technical Report (TR), the following references apply: [1] CEPT Recommendation T/R 13-01: "Preferred channel arrangements for fixed services in the range 1-3 GHz". [2] ITU-R Recommendation F.746-3: "Radio-frequency channel arrangements for radio-relay systems". [3] ITU-R Recommendation F.1098-1... |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 3 Definitions, symbols and abbreviations | |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 3.1 Definitions | For the purposes of the present document, the following terms and definitions apply: antenna: part of the transmitting or receiving system that is designed to radiate or receive electromagnetic waves axial ratio: ratio of maximum to minimum power contained in the field components of the polarization ellipse boresight: ... |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 3.2 Symbols | For the purposes of the present document, the following symbols apply: dBiC DeciBels relative to an isotropic circularly polarized source dBi DeciBels relative to an isotropic radiator GHz GigaHertz MHz MegaHertz α alpha (= half the sector angle) fo nominal centre frequency of declared antenna operating range |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 3.3 Abbreviations | For the purposes of the present document, the following abbreviations apply: CS Central Station HPBW Half Power BeamWidth LHCP Left Hand Circular Polarization MP MultiPoint PIM Passive InterModulation P-MP Point-to-MultiPoint RHCP Right Hand Circular Polarization RPE Radiation Pattern Envelope RS Repeater Station TS Te... |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 4 Frequency bands | For the purpose of the present document, the overall frequency bands 1 GHz to 11 GHz are divided into four ranges as follows: Range 1 1GHz to 3 GHz; Range 2 3 GHz to 5,9 GHz; Range 3 5,9 GHz to 8,5 GHz; Range 4 8,5 GHz to 11 GHz. ETSI ETSI TR 102 031-3 V1.1.1 (2002-01) 8 |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 5 Types of antennas | |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 5.1 Antenna types | The present document addresses fixed beam antennas used in the Central (CS) and Terminal (TS) Stations including Repeaters (RS). The antennas are used in a system which can generally be described as in figure 1. CS TS Core Network TS TS TS TS RS RS or CS TS Core Network TS TS TS TS RS RS or CS: Central Station, which i... |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 5.2 Antenna classifications | |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 5.2.1 Central Station (CS) classes | The appropriate Radiation Pattern Envelopes (RPE) are CS, CS1, CS2 and CS3. |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 5.2.2 Terminal Station (TS) classes | The Radiation Pattern Envelopes (RPE) are TS1, up to as high as TS5, in the four frequency ranges. NOTE: Not all ranges have 5 classes. |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 6 Electrical characteristics | The present document defines several types of CS and TS antenna. For the purpose of the present document, an antenna is specific to a type, class, the frequency range of operation and the mid-band gain. An antenna which employs a radome shall meet the requirements of the present document with the radome in place. A 0° ... |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 6.1 Terminal Station (TS) antennas | The RPEs and gain parameters apply for antennas using either RHCP or LHCP. |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 6.1.1 TS Radiation Pattern Envelopes (RPE) | The co-polar and cross-polar radiation patterns for both azimuth and elevation (unless otherwise stated) shall not exceed the RPEs defined in the following list of tables, figure 2 indicates a typical normalized template, although the number of points in the co- and cross-polar templates may vary. All values in bracket... |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 6.1.1.1 Range 1 (1,0 GHz to 3,0 GHz) | In this frequency range only, the cross polar requirement shall apply to azimuth only. Table 1: Class TS1, range 1 Co-polar Angle (degree) Relative gain (dB) P0 [0] [0] P1 [30] [0] P2 [60] [-5] P3 [110] [-14] P4 [180] [-16] Cross polar Angle (degree) Relative gain (dB) Q0 [0] [-13] Q1 [30] [-13] Q2 [60] [-18] Q3 [110] ... |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 6.1.1.2 Range 2 (3,0 GHz to 5,9 GHz) | Table 4: Class TS1, range 2 Co-polar Angle (degree) Relative gain (dB) P0 [0] [0] P1 [90] [0] P2 [90] [-10] P3 [180] [-10] Cross polar Angle (degree) Relative gain (dB) Q0 [0] [-15] Q1 [180] [-15] Table 5: Class TS2, range 2 Co-polar Angle (degree) Relative gain (dB) P0 [0] [0] P1 [12] [0] P2 [30] [-10] P3 [90] [-15] P... |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 6.1.1.3 Range 3 (5,9 GHz to 8,5 GHz) | Table 9: Class TS1, range 3 Co-polar Angle (degree) Relative gain (dB) P0 [0] [0] P1 [9] [0] P2 [22] [-12] P3 [90] [-17] P4 [150] [-25] P5 [180] [-25] Cross polar Angle (degree) Relative gain (dB) Q0 [0] [-17] Q1 [90] [-17] Q2 [150] [-25] Q3 [180] [-25] Table 10: Class TS2, range 3 Co-polar Angle (degree) Relative gain... |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 6.1.1.4 Range 4 (8,5 GHz to 11,0 GHz) | Table 12: Class TS1, range 4 Co-polar Angle (degree) Relative gain (dB) P0 [0] [0] P1 [7] [0] P2 [15] [-13] P3 [90] [-20] P4 [130] [-30] P5 [180] [-30] Cross polar Angle (degree) Relative gain (dB) Q0 [0] [-20] Q1 [90] [-20] Q2 [130] [-30] Q3 [180] [-30] Table 13: Class TS2, range 4 Co-polar Angle (degree) Relative gai... |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 6.1.2 Terminal Station (TS) minimum antenna boresight gain | The TS RPEs specified in tables 1 to15 inclusive are for maximum allowed co- and cross- polar gains, relative to boresight actual gain. The TS antenna shall meet the minimum boresight gain described by the following expression: Minimum boresight gain =[ROUND (0.85fo + 5)] dBi. |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 6.2 Central Station (CS) sectored antennas | |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 6.2.1 CS Azimuth Radiation Pattern Envelopes (RPE), sectored | The Central Station azimuth templates for sectored (i.e. not omni-directional) antennas are given in figure 3, and tables 16-19 for CS (frequency range 1 only), CS1, CS2 and CS3 (frequency ranges 2, 3 and 4) respectively, for sector widths in the range 15° to 180°. This template shall apply for the frequencies indicate... |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 6.2.2 Minimum boresight gain, sectored | The CS (sectored) antenna boresight gain shall exceed the values defined in figure 4 as a function of sector angle, 2 α, in the range 15° to 180° and for all frequencies in the 1 GHz to 11 GHz frequency band. 0 5 10 15 20 15 30 45 60 75 90 105 120 135 150 165 180 Sector Angle (°) Min. Gain (dBi) Figure 4: CS sector ant... |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 6.3 Central Station (CS) omni-directional antennas | For omni-directional CS antennas the following parameters shall apply for the frequencies outlined below: Minimum nominal gain: [5] dBiC 1-3 GHz, [8] dBiC 3-11 GHz; Gain ripple (azimuth): [3] dB maximum (peak to peak); Cross Polar (on azimuth main beam): [-20] dB maximum in the azimuth plane. |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 6.4 Central Station (CS) omni and sectored elevation RPEs | Three CS antenna elevation RPEs are defined: two for antennas designed to exhibit symmetric RPEs about the zero degree reference direction in the two frequency ranges described (see figures 5 and 6) and one for antennas designed for asymmetric RPEs (see figure 7). For antennas designed without any tilt the zero degree°... |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 6.4.1 Symmetric elevation RPEs | For omni-symmetric antennas the co- and cross-polar limits in tables 20 and 21 and figure 5 shall apply, up to a limit of +/-90°, there are no limits beyond these angles. For sectored symmetric antennas only, the co-polar limits in tables 20 and 21 and figures 5 and 6 shall be linearly interpolated beyond the value at ... |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 6.4.2 Asymmetric elevation patterns | For omni-asymmetric antennas the co-polar limits in figure 7 shall apply, up to a limit of +/- 90°. There are no limits beyond these angles. The cross-polar limit indicated shall be limited to the range –4º to +4, elsewhere the co-polar limits shall apply. For sectored asymmetric antennas only, the co-polar limit in fi... |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 6.5 Radomes | Antenna adopting radomes shall conform to the absolute gain and radiation pattern values stipulated in the classes above, with the radome in place. ETSI ETSI TR 102 031-3 V1.1.1 (2002-01) 20 |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 6.6 Antenna polarization | The antenna system shall radiate circular (single or dual) right hand or left hand polarization. |
8f4da8588836467ecb97fbf5e4db443c | 102 031-3 | 7 Conformance tests | For antenna parameters EN 301 126-3-2 shall apply. ETSI ETSI TR 102 031-3 V1.1.1 (2002-01) 21 Annex A: Antenna characteristics A.1 Mechanical characteristics A.1.1 Environmental characteristics The antenna should be designed to operate within a temperature range of -45°C to +45°C with a relative humidity up to 100 % wi... |
f31c7d86f1a6287495ba9736440fd5d6 | 102 021-6 | 1 Scope | The present document defines the user requirements for Smart Card (SC) and Subscriber Identity Module (SIM) and is applicable to the specification of TETRA Release 2.1 equipment. |
f31c7d86f1a6287495ba9736440fd5d6 | 102 021-6 | 2 References | References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendments) applies. Referenced documents which ar... |
f31c7d86f1a6287495ba9736440fd5d6 | 102 021-6 | 2.1 Normative references | The following referenced documents are necessary for the application of the present document. Not applicable. |
f31c7d86f1a6287495ba9736440fd5d6 | 102 021-6 | 2.2 Informative references | The following referenced documents are not necessary for the application of the present document but they assist the user with regard to a particular subject area. [i.1] ETSI ES 200 812-1: "Terrestrial Trunked Radio (TETRA); Subscriber Identity Module to Mobile Equipment (TSIM-ME) interface; Part 1: Universal Integrate... |
f31c7d86f1a6287495ba9736440fd5d6 | 102 021-6 | 3 Definitions and abbreviations | |
f31c7d86f1a6287495ba9736440fd5d6 | 102 021-6 | 3.1 Definitions | For the purposes of the present document, the following terms and definitions apply: Cryptographic Module (CM): functional entity of a Smart Card (SC) which encapsulates the following security functions: 1) cryptographic algorithms for authentication between Smart Card (SC) and Mobile Equipment (ME); 2) cryptographic a... |
f31c7d86f1a6287495ba9736440fd5d6 | 102 021-6 | 3.2 Abbreviations | For the purposes of the present document, the following abbreviations apply: API Application Programming Interface APN Access Point Name CM Cryptographic Module CSC Cryptographic Smart Card DGNA Dynamic Group Number Assignment DM-MS Direct Mode – Mobile Station DMO Direct Mode Operation DOTAM Direct Mode Over-The-Air M... |
f31c7d86f1a6287495ba9736440fd5d6 | 102 021-6 | 4 User Requirement Specification | |
f31c7d86f1a6287495ba9736440fd5d6 | 102 021-6 | 4.1 Introduction | In some PMR networks for PPDR users, user management and network management are handled separately. The operator performs the task of network management, i.e. monitoring, alarming, and administration of network elements. User organisations require to manage their users, e.g. to commission new subscribers, locally by th... |
f31c7d86f1a6287495ba9736440fd5d6 | 102 021-6 | 4.2 Security functions | |
f31c7d86f1a6287495ba9736440fd5d6 | 102 021-6 | 4.2.1 Authentication | The PSC should store the authentication key K and does not pass the authentication key to the ME. This is why, the PSC should contain the necessary MS-SwMI authentication algorithms. The PSC should support both, mutual SC-ME authentication after powering on and mutual MS-SwMI authentication during initial and periodic ... |
f31c7d86f1a6287495ba9736440fd5d6 | 102 021-6 | 4.2.2 End-to-End Encryption | The CM contains the necessary End-to-End Encryption algorithms and supports End-to-End Encryption of traffic data for the following services: • half duplex individual direct call in V+D and DMO; • half duplex individual hook call in V+D; • full duplex individual hook call in V+D; • group call in V+D and DMO; • SDS-TL i... |
f31c7d86f1a6287495ba9736440fd5d6 | 102 021-6 | 4.2.3 Operational-Tactical Address | Requirements for using the operational-tactical address can be found in TR 102 021-4 [i.2]. |
f31c7d86f1a6287495ba9736440fd5d6 | 102 021-6 | 4.2.4 Enable and disable | Three different mechanisms are supported for enabling and disabling subscribers. The first two only apply to Personalized Smart Cards. The third applies to both PSC and CSC as it is a function of the CM and not the SIM. 1) Physical temporary and permanent enabling and disabling of an ME are based on TEI. When an ME is ... |
f31c7d86f1a6287495ba9736440fd5d6 | 102 021-6 | 4.3 Personalisation functions | A SIM is a tamper-proof container of personalised user parameters. In some PMR networks with large numbers of subscribers, it is vital to operators that user management is able to maintain personalised user parameters over-the-air, see also TR 102 021-11 [i.5]. Otherwise, users and operators will not be able to handle ... |
f31c7d86f1a6287495ba9736440fd5d6 | 102 021-6 | 4.3.1 Subscriber identity | The SIM supports tamper-proof data management of the following user parameters which directly belong to a subscriber identity: • Individual TETRA Subscriber Identity (ITSI); • TETRA authentication Key (K); • AIE keys (optionally); • Personal Identification Number (PIN); • Personal Unblocking Key (PUK); • Operational-Ta... |
f31c7d86f1a6287495ba9736440fd5d6 | 102 021-6 | 4.3.2 Parameters not depending on subscriber identity | The SIM should support tamper-proof data management of the following user parameters which do not depend on subscriber identity and should be available in all networks MS is registered to: • phonebook with ITSI and MSISDN entries; • history of last called ITSI and MSISDN; • archive of SDS messages (sent, received, draf... |
f31c7d86f1a6287495ba9736440fd5d6 | 102 021-6 | 4.3.3 Parameters depending on subscriber identity | The SIM should support tamper-proof data management of the following user parameters which depend on subscriber identity and is specific for each network an MS is registered to: • list of valid preferred location areas; • list of valid subscriber classes; • list of status texts and a mapping to pre-coded status values;... |
ed30ceaf2b668247202f49c216582051 | 102 021-5 | 1 Scope | The user requirements contained in this URS are described in non-technical terms and are based on an analysis of the results for air interface enhancements from the TETRA Release 2 Market Questionnaire, described in TR 102 021-1 [i.1], clauses 4.2 and 4.3 and the Future of TETRA workshop held during the TETRA World Con... |
ed30ceaf2b668247202f49c216582051 | 102 021-5 | 2 References | References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendments) applies. Referenced documents which ar... |
ed30ceaf2b668247202f49c216582051 | 102 021-5 | 2.1 Normative references | The following referenced documents are necessary for the application of the present document. Not applicable. |
ed30ceaf2b668247202f49c216582051 | 102 021-5 | 2.2 Informative references | The following referenced documents are not necessary for the application of the present document but they assist the user with regard to a particular subject area. [i.1] ETSI TR 102 021-1: "Terrestrial Trunked Radio (TETRA); User Requirement Specification TETRA Release 2; Part 1: General Overview". [i.2] ETSI TR 102 62... |
ed30ceaf2b668247202f49c216582051 | 102 021-5 | 3 Definitions and abbreviations | |
ed30ceaf2b668247202f49c216582051 | 102 021-5 | 3.1 Definitions | For the purposes of the present document, the following terms and definitions apply: interworking: where TETRA users on one system can communicate with mobile users on another system (which could be TETRA or different), as long as they operate within their home TETRA network, i.e. they cannot roam into another system E... |
ed30ceaf2b668247202f49c216582051 | 102 021-5 | 3.2 Abbreviations | For the purposes of the present document, the following abbreviations apply: APN Access Point Name ETSI European Telecommunications Standards Institute GPRS General Packet Radio Service GSM Global System for Mobile communications IP Internet Protocol ISI Inter System Interface MS Mobile Station PAMR Public Access Mobil... |
ed30ceaf2b668247202f49c216582051 | 102 021-5 | 4 User requirement specification | |
ed30ceaf2b668247202f49c216582051 | 102 021-5 | 4.1 Introduction | TETRA networks will rarely exist in isolation. These networks are built to enable communication between users of TETRA networks and to/from other networks and network users. The present document describes the need to interface to existing and future networks mobile and fixed in order to enable interoperability of servi... |
ed30ceaf2b668247202f49c216582051 | 102 021-5 | 4.2 Interworking | Interworking is the ability of multiple networks to co-operate and together render a service. It is an essential feature when parties involved in communication services are not connected to the same network. Those parties would typically be end-users in a voice communication. They could also be a client and a server in... |
ed30ceaf2b668247202f49c216582051 | 102 021-5 | 4.2.1 Voice interworking requirements | Voice interworking is required between TETRA and other voice networks listed in clause 4.1. Most TETRA voice communications are a combination of group calls and simplex and/or duplex "one to one" calls. The interworking of duplex calls to PSTN, GSM and UMTS users, where most of the installed base of voice terminals are... |
ed30ceaf2b668247202f49c216582051 | 102 021-5 | 4.2.2 Data interworking requirements | Data interworking requirements are of two main sorts: • TETRA users wanting access to servers in other fixed or mobile networks; and • users on other fixed or mobile networks wanting exchange of data with TETRA users. There are requirements for both. However, the possibility to access the outside world from the TETRA n... |
ed30ceaf2b668247202f49c216582051 | 102 021-5 | 4.3 Roaming | Roaming has implications on the terminal as well as on the SwMI. Here we consider the user requirements for the roaming service and therefore we do not make explicit distinction whether the implications are at the terminal level or at the SwMI level. Roaming between different TETRA networks is essential and by far the ... |
ed30ceaf2b668247202f49c216582051 | 102 021-5 | 4.4 Service roaming | Service roaming is defined as a combination of roaming and interworking where TETRA services are provided via a non-TETRA air interface. Service Roaming should allow users on a non-TETRA systems to transparently participate in the group and individual communication on a TETRA system and to use the other TETRA services,... |
ed30ceaf2b668247202f49c216582051 | 102 021-5 | 4.5 Implementing technical requirements | Implementations of interworking and roaming should pay particular attention to the following aspects: • Minimum impact on operational costs. • Maximum transparency to the end-user. • Minimum impact on network requirement. • Co-ordination of numbering across technologies. • Co-ordination of user identities across techno... |
ed30ceaf2b668247202f49c216582051 | 102 021-5 | 4.6 Timeline | Interworking and roaming between different TETRA networks is an immediate requirement of users. The requirement for roaming between TETRA networks varies between user organization. Some users in the Public Safety market have a requirement in 2011. A more significant portion of this market has requirements soon after th... |
6bce6c85318154fbd8c05d4f300ad8ea | 102 021-4 | 1 Scope | The present document provides the User Requirement Specifications (URS) for the TETRA air interface enhancements translated into terms of: • network performance aspects; • terminal performance aspects; • location information aspects. The present document is applicable to the specification of TETRA Release 2.1 equipment... |
6bce6c85318154fbd8c05d4f300ad8ea | 102 021-4 | 2 References | References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendments) applies. Referenced documents which ar... |
6bce6c85318154fbd8c05d4f300ad8ea | 102 021-4 | 2.1 Normative references | The following referenced documents are necessary for the application of the present document. Not applicable. |
6bce6c85318154fbd8c05d4f300ad8ea | 102 021-4 | 2.2 Informative references | The following referenced documents are not necessary for the application of the present document but they assist the user with regard to a particular subject area. [i.1] ETSI TR 102 621: "Terrestrial Trunked Radio (TETRA); TWC2007 Future of TETRA workshop report". [i.2] ETSI TR 101 987: "Terrestrial Trunked Radio (TETR... |
6bce6c85318154fbd8c05d4f300ad8ea | 102 021-4 | 3 Definitions and abbreviations | |
6bce6c85318154fbd8c05d4f300ad8ea | 102 021-4 | 3.1 Definitions | For the purposes of the present document, the following terms and definitions apply: TETRA Release 2: Work Programme with new terms of reference within ETSI Project TETRA to enhance the services and facilities of TETRA in order to meet new user requirements, utilize new technology and increase the longevity of TETRA wi... |
6bce6c85318154fbd8c05d4f300ad8ea | 102 021-4 | 3.2 Abbreviations | For the purposes of the present document, the following abbreviations apply: AI Air Interface APL Automatic Person Location AVL Automatic Vehicle Location C-SCCH Common Secondary Control Channel CSL Cell Service Level DTX Discontinuous Transmission ETSI European Telecommunications Standards Institute GPS Global Positio... |
6bce6c85318154fbd8c05d4f300ad8ea | 102 021-4 | 4 User Requirement Specification | |
6bce6c85318154fbd8c05d4f300ad8ea | 102 021-4 | 4.1 Introduction | The enhancements of the TETRA air interface standard aim at providing increased benefits and optimization in terms of spectrum efficiency, network capacity, system performance, quality of service, size and cost of terminals, battery life, and other relevant parameters. Other possible air interface enhancements are prov... |
6bce6c85318154fbd8c05d4f300ad8ea | 102 021-4 | 4.2 Network performance aspects | |
6bce6c85318154fbd8c05d4f300ad8ea | 102 021-4 | 4.2.1 Overview of network performance aspects | The network performance aspects to be enhanced or supported in TETRA Release 2 are listed below: • improved spectrum efficiency; • enhanced network capacity; • improved end-to-end time delay performance; • Base Station site RF coverage beyond the current 58 km radius limitation of TETRA Release 1; • improved RF perform... |
6bce6c85318154fbd8c05d4f300ad8ea | 102 021-4 | 4.2.2 Enhanced network capacity | Enhanced network capacity is the most important requirement for the general TETRA market and also in all market segments. Most of the respondents (users/operators) in 2001 were still starting up their TETRA networks. These networks were not under normal or full load and most respondents could only estimate the capacity... |
6bce6c85318154fbd8c05d4f300ad8ea | 102 021-4 | 4.2.3 Location positioning accuracy better than base station site location | Location positioning accuracy better than base station site location (Cell ID) is also a very important requirement for the general TETRA market. It is required in both Public Safety and PAMR market segments. The requirements for location positioning are handled in detail in clause 4.4. |
6bce6c85318154fbd8c05d4f300ad8ea | 102 021-4 | 4.2.4 Improved cell hand-over decision and management | |
6bce6c85318154fbd8c05d4f300ad8ea | 102 021-4 | 4.2.4.1 General improvements | Improved cell hand-over decision and management is an important requirement for the general TETRA market. It is required in both the Public Safety and PAMR market segments. User/operators responsible for more mature TETRA networks tend to judge this item more important than users/operators with limited TETRA experience... |
6bce6c85318154fbd8c05d4f300ad8ea | 102 021-4 | 4.2.4.2 Expedited handover | Radio network planning for road and railway tunnels is very challenging due to the fast fading nature of cells. Often, the received RF signal from the current cell degrades rapidly at the same time as the new cell's RF signal level raises rapidly, unlike "out in the open" where the terminal has more time to react to ch... |
6bce6c85318154fbd8c05d4f300ad8ea | 102 021-4 | 4.2.5 Improving end to end time delay performance | Reducing end-to-end time delay for voice was earlier required in both the Public Safety and PAMR market segments but not identified in the 2007 TWC workshop as an area that requires further improvement. |
6bce6c85318154fbd8c05d4f300ad8ea | 102 021-4 | 4.2.6 Improved spectrum efficiency | Spectrum efficiency is important for the PAMR market segment and required by some Public Safety users. Since most of the respondents (users/operators) to the 2001 questionnaire were still starting up their TETRA networks, it was possible that the TETRA network capacity could have been underestimated. If this was the ca... |
6bce6c85318154fbd8c05d4f300ad8ea | 102 021-4 | 4.2.8 Improved RF performance | An improvement in the RF performance by means of better receiver sensitivity, better air interface error correction or similar solution(s) is needed to improve usability in rural areas and indoors. The extended cell size does not help in these cases where the problem is not the distance between the base station and the... |
6bce6c85318154fbd8c05d4f300ad8ea | 102 021-4 | 4.2.9 SDS improvements | One of the highest scoring improvement areas in TETRA according to the participants of the 2007 workshop "Future of TETRA" [i.1] was "increased speed, capacity, and efficiency of SDS". Even though the SDS service has been serving the TETRA community adequately for several years, the workshop attendees thought that ther... |
6bce6c85318154fbd8c05d4f300ad8ea | 102 021-4 | 4.2.10 SDS concatenation | In addition to a faster and more efficient SDS service there is a need to have longer SDS messages. It should be able to send these both to individual and group addresses. These longer messages should support, but not be limited, to text messages. There is a delicate balance between the convenience of using SDS and the... |
6bce6c85318154fbd8c05d4f300ad8ea | 102 021-4 | 4.2.11 User aliases | There is a requirement for users to be aware at all times of who is talking (by their alias). Some users might also need to know who else is in the call and their group membership(s). To satisfy these kind sof requirements there is a need to easily, quickly and efficiently dynamically update and change aliases network ... |
6bce6c85318154fbd8c05d4f300ad8ea | 102 021-4 | 4.3 Terminal performance aspects | |
6bce6c85318154fbd8c05d4f300ad8ea | 102 021-4 | 4.3.1 Overview of terminal performance aspects | The terminal performance aspects to be enhanced in TETRA Release 2 and Release 2.1 are listed below: • size reduction; • weight reduction; • improved battery operating life for daily PMR shift use; • improved battery-operating life for Telephony use; • improved battery operating life for data use; • co-existence of ter... |
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