1、 - m 3404583 007b203 8T3 m c-3 EISI ETSI ETR 086-2 ;CAL January 1994 Source: ETSI TC-RES - Reference: DTR/RES-06001 UDC: 621.396 Key words: TETRA, PDO Trans European Trunked Radio (TETRA) system; Technical requirements specification Part 2: Packet Data Optimised (PDO) systems ETS I European Telecomm
2、unications Standards Institute ETSI Secretariat Postal address: 06921 Sophia Antipolis Cedex - FRANCE Office address: Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE Tel.: +33 92 94 42 O0 - Fax: +33 93 65 47 16 European Telecommunications Standards Institute 1 994. All rights reserved. No
3、part may be reproduced except as authorised by written permission. The copwight and the foregoing restriction on reproduction extend to all media in which the information may be embociea. m 3404583 009620L1 73T m Page 2 ETR 086-2: 1994 Whilst every care has been taken in the preparation and publicat
4、ion of this document, errors in content, typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to “ETSI Editing and Standards Approval Dept.“ at the address shown on the title page. 3404583 00b205 b7b = Page 3 ETR 086-2: 1994 Contents . . Foreword 5 1 2 3
5、4 5 6 Scope . 7 References . 7 Definitions and abbreviations (TETRA 01.04) 7 3.1 Definitions . 7 Supplementary service abbreviations., . 16 Packet Data Optimised (PDO) service descriptions (TETRA 02.03) . 16 4.1.1 Bearer services . 16 4.1.2 Supplementary services 17 Facilities for connection oriente
6、d service . 17 Facilities for specific connectionless service 17 Network principles and basic concepts . 17 Mobile station operation 17 5.2.1 General 17 Non-integrated service arrangements 18 Integrated service arrangements 18 Packet Assembler/Disassembler (PAD) character-mode access., . 20 Fixed te
7、rminal operation 20 Interconnection to other PDNs or RPDNs . 21 Operation of air interface for connection oriented service . 21 Addressing . 5.5.1.1 Virtual Point of Attachment (VPA) 21 5.5.1.2 Transferable subscription 21 Air interface resource sharing 21 Air interface performance requirements . 22
8、 Air interface connection establishment . 22 Air interface VPA re-establishment. 22 5.7.1 Authentication 23 5.7.2 Ciphering . 23 Facilities for connection oriented service 23 General abbreviations . 3.2 14 3.3 4.1 General. 16 4.1.3 4.1.4 4.2 Connection oriented services 17 5.1 General 17 5.2 . 5.2.2
9、 5.2.3 5.2.4 5.3 5.4 5.5 5.5.1 21 5.5.2 5.6.1 5.6.2 5.6 5.7 Security features 23 5.8 Connectionless services . 25 Mobile station operation 26 Interconnection to other PDNs or RPDNs . 26 Operation of air interface for connectionless service 26 6.5.1 Addressing . 26 Virtual Point of Attachment (VPA) 2
10、6 6.5.1.2 Transferable subscription 27 Air interface resource sharing 27 Security. . 27 . 6.1 General 25 6.2 6.2.1 Services supported 26 6.3 Fixed terminal operation 26 6.4 6.5 6.5.1.1 6.5.2 Air interface performance requirements . 6.6 27 6.7 m 3Y04583 0076206 502 m Page 4 ETR 086-2: 1 994 6.8 Facil
11、ities for specific connectionless service, . 28 Summary of facilities. . 28 6.8.2 Delivery disposition 28 6.8.1 Priority . 6.8.3 28 Multicast 6.8.4 28 Area selection . 6.8.5 29 6.8.6 Packet identity . 29 6.8.7 Packet storage . 29 6.8.8 Subaddressing., . 29 User access to specific connectionless faci
12、lities . 29 6.8.8.1 . History 30 Page 5 ETR 086-2: 1994 Foreword This ETSI Technical Report (ETR) has been prepared by the Radio Equipment and Systems (RES) Technical Committee of the European Telecommunications Standards Institute (ETSI). ETRs are informative documents resulting from ETSI studies w
13、hich are not appropriate for European Telecommunication Standard (ETS) or Interim European Telecommunication Standard (LETS) status. An ETR may be used to publish material which is either of an informative nature, relating to the use or application of ETSs or I-ETSs, or which is immature and not yet
14、 suitable for formal adoption as an ETS or I-ETS. This ETR contains the specification of the Packet Data Optimised (PDO) services and facilities of the Trans European Trunked Radio (TETRA) system. This ETR will be subject to revision and therefore future editions. This ETR is divided into three part
15、s: Part 1: Voice plus Data (V + Dl systems; Part 2: Packet Data Optimized (PDO) systems; Part 3: Security aspects. 3404583 0096208 385 Page 7 ETR 086-2: 1 994 I Scope This ETSI Technical Report (ETR) contains the technical requirements specification for Packet Data Optimised (PDO) systems used in th
16、e TETRA system. It is a complementary document to the Voice plus Data (V f D) technical requirements specification given in Part 1 of this ETR, and the parts are cross referenced as appropriate. 2 References For the purposes of this ETR the following references apply: l I i31 i41 151 i61 i71 i81 i91
17、 ITU-T Recommendation X.2 (1 993): “Internationai data transmission services and optional user facilities in public data networks and ISDNs“. ITU-T Recommendation X.25 (1 993): “Interface between Data Terminai Equipment (DTE) and Data Circuit-Terminating Equipment (DCE) for terminals operating in th
18、e packet mode and connected to public data networks by dedicated circuit“. ITU-T Recommendation X.32 (1 993): “Interface between DTE and DCE for terminals operating in the packet mode and accessing a packet switched public data network through a public switched telephone network or an ISDN or a circ
19、uit switched public data network“. ITU-T Recommendation X.75 (1 993): “Packet-switched signalling system between public networks providing data transmission services“. CCITT Recommendation X.121 (1 992): “International numbering plan for public data networks“. ISO/IEC 8208 (1 990): “Information tech
20、nology - Data communications - X.25 Packet Layer Protocol for Data Terminal Equipment“. ISO/IEC 8473 (1 988): “Information processing systems - Data communications - Protocol for providing the connectionless-mode network service“. ISOAEC TR 10029 (1 989): “Information technology - Telecommunications
21、 and information exchange between systems - Operation of an X.25 interworking unit“. ETR 086-3: “Trans European Trunked Radio (TETRA) system; Technical requirements specification; Part 3: Security Aspects“. 3 Definitions and abbreviations (TETRA O1 .O41 3.1 Definitions For the purposes of this ETR t
22、he following definitions apply: Access control: the prevention of unauthorized use of resources, including the use of a resource in an unauthorized manner. Authentication: the act of positively verifying that the true identity of an entity (network, user) is the same as the claimed identity. Base Ra
23、dio Stack (BRS): a logical grouping that includes all of the air interface protocol element in one base station (the fixed side of the air interface). Previous page is blank m 3404583 0096209 211 m Page 8 ETR 086-2: 1994 Base Station (6s): a physical grouping of equipment which provides the fixed po
24、rtion of the air interface, One base station transmits and receives radio signals to and from a single location area (a single region of geographical coverage). A BS contains at least one Base Radio Stack (BRSI. Base Station Radio Part (BSRP): one physical sub-group of a base station which contains
25、all the radio end points (one or more) that are connected to a single antenna system. Bearer service: a type of telecommunication service that provides the capability for the transmission of signals between user-network interfaces. Bi-directional channel: a channel that can carry information in both
26、 directions. Broadcast call: a multipoint call in which the same information is transmitted simultaneously by the calling terminal to all available terminals. Call: a complete information exchange between two or more parties. NOTE 1 : See also call transaction. Call re-establishment (slow handover):
27、 the action of switching a call in progress from one cell to another or between radio channels in the same cell. NOTE 2: Call re-establishment is used to allow established calls to continue when mobile stations move from one cell to another cell, or as a method to escape from co- channel interferenc
28、e. Call transaction: all events associated with one continuous transmission of information during a call (including control signalling). A call consists of one or more call transactions. NOTE 3: In a half-duplex call, the call consists of a sequence of unidirectional transactions. Carrier (Radio Fre
29、quency (RF) carrier): the centre frequency of one radio transmission. A modulated carrier is used either for one uplink or one downlink. Carrier pair: two different carriers which are allocated together to provide one uplink and one downlink. Normally the two carriers are allocated at a fixed freque
30、ncy spacing (the duplex separation). NOTE 4: Carrier pairs only refer to allocation of carriers, not to their use. For example, a bi-directional logical channel may be assigned to an uplink from one carrier pair plus a downlink from a different carrier pair. Cell: the smallest geographical area wher
31、e TETRA services may be obtained, using a certain set of radio frequencies. NOTE 5: Each adjacent cell (touching or overlapping) should use a different set of radio frequencies to avoid co-channel interference. Challenge-Response pair (C/RI: a pair of 32 bit binary numbers linked by a security algor
32、ithm. NOTE 6: When a user pays a subscription a key is distributed by the operator. This key is also stored in the subscriber information database. Circuit switched connection: a connection that is established. on request between two or more terminals and provides the exclusive use of the connection
33、 for information transfer until it is released. Circuit switched data service: a data service that uses a circuit-switched connection to transfer data between data terminal equipment. 3404583 00b2LO T33 Page 9 ETR 086-2: 1994 Circuit switched speech service: a service that uses a circuit-switched co
34、nnection to transfer speech information between voice terminal equipment. Closed user group: a (logical) group of users who are not allowed to communicate outside their group. NOTE 7: Gateways to other networks and ao particular subscribers may be accessible as a supplementary service. Confidentiali
35、ty (1): rendering information into the form of ciphertext, such that the information is only intelligible by entities that possess the reverse algorithm (.e. the ability to recover the plaintext from the ciphertext). Confidentiality (2): the property that information may not be available or disclose
36、d to unauthorized individuals, entities or processes. Connectionless packet data service: a service which transfers a single packet of data from one source node to one or more destination nodes in a single phase (.e. without establishing a logical connection or virtual circuit). Connection oriented
37、packet data service: a service that transfers data from one source node to one destination node using a multi-phase protocol that establishes (and releases) logical connections or virtual circuits between end users that are then used to transferring packet data. Data compression: a reversible proces
38、s that reduces the quantity of data, without any loss of information. Data integrity: the property that data has not been altered or destroyed in an unauthorized manner, Data origin authentication: the corroboration that the origin of the source of data received is as claimed. Direct mode: a mode of
39、 simplex operation where mobile subscriber radio units may communicate using radio frequencies which are outside the control of the network and without intervention of any base station. Downlink: a unidirectional radio pathway for the transmission of signals from one Base Station (BS) to one or more
40、 Mobile Stations (MSs). Duplex (full duplex): a mode of operation by which information can be transferred in both directions and where the two directions are independent. See also half duplex. NOTE 8: In a packet switching environment IPDO or V+D signalling) protocols can be duplex at one layer and
41、half duplex at another layer. Encryption: the conversion of plaintext to ciphertext. End to end: is within the TETRA boundaries: - - - including inter system interface. from TETRA terminal to TETRA terminal (LS or MS); from TETRA terminal to gateways; External user: an application which does recogni
42、ze TETRA messages and cannot therefore directly invoke TETRA services. NOTE 9: An external user may be involved in communications which also involve TETRA equipment, but the external user has no direct control over the TETRA facilities. Facility: the means to assist the performance of an action. m 3
43、904583 OOb2LL 97T Page 10 ETR 086-2: 1994 Gateway: a device which will enable the interconnecting of two networks which inherently use different and incompatible protocols. Half duplex (semi duplex): a mode of operation by which information can be transferred in both directions but the transfers are
44、 mutually dependent (.e. uplink and downlink transfers share some resources), See also duplex. NOTE IO: In a packet switching environment (PDO or V+D signalling) protocols can be duplex at one layer and half duplex at another layer. Home Data Base (HDB): the data base in the MSs home TETRA network.
45、In the HDB all necessary information about the MS is collected and stored permanently. Also information about how to find a migrating MS is stored in the HDB. There is logically only one data base in a TETRA network. Identity exchange: a procedure in which the individual MS identity (.e. ITSI, ISS1
46、or ASSI) is exchanged for an alias identity (.e. ISSI or ASSI). NOTE 11: This is carried out for one of two purposes, either for security purposes where the real ISS1 is not sent over the air interface or for exchanging a migrating MSs long ITSI identity to an unambiguous short ISSI or ASSt identity
47、. Implicit registration: is when the location of the MS is noticed through messages other then location updating messages, e.g. CC messages. Incoming call: a terminating call which, from the viewpoint of an individual party, is a call that was initiated by another party. NOTE 12: See also outgoing c
48、all. Inter-operability: an attribute that describes the ability of a given subscriber terminal to obtain service from a given infrastructure, using the appropriate standard TETRA interface protocols. NOTE 13: See also level of inter-operability and profile. Inter-system inter-working capability: the
49、 ability of a particular TETRA infrastructure to exchange meaningful information with other TETRA infrastructures, using the standard TETRA inter-system inter-working protocols. NOTE 14: An infrastructure can be characterized by the combination of its inter-system inter-working capability and its air interface profile. See also the definition of profile, and level of inter-working. Key: a sequence of symbols that controls the operations of encipherment and decipherment. Key management: the generation, selection, storage, distribution, deletion, archiving and application of
