1、INTERNATIONAL ITU=T TELECOMMUNICATION UNION TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU F.116 (03/00) SERIES F: NON-TELEPHONE TELECOMMUNICATION SERVICES Mobile service - Mobile services and multidestination satel I i te services Service features and operational provisions in IMT=2000 ITU-T Recom
2、mendation F. I 16 (Previously CCITT Recommendation) COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling ServicesSTD.1TU-T RECflN FSLLb-ENGL 2000 Yb259L Ob71714 5T2 BI ITU-T F-SERIES RECOMMENDATIONS NON-TELEPHONE TELECOMMUNICATION SERVICES TELEGRAPH
3、 SERVICE Operating methods for the international public telegram service The gentex network Message switching The international telemessage service The international telex service Statistics and publications on international telegraph services Scheduled and leased communication services Phototelegra
4、ph service MOBILE SERVICE F. 1 -F.19 F.20-F.29 F.30-F.39 F.40-F.58 F.59-F.89 F .90-F. 99 F. I 00-F. I 04 F. I 05-F. 1 O9 TELEMATIC SERVICES Public facsimile service Teletex service Videotex service General provisions for telematic services MESSAGE HANDLING SERVICES DIRECTORY SERVICES DOCUMENT COMMUN
5、ICATION Document communication Programming communication interfaces DATA TRANSMISSION SERVICES AUDIOVISUAL SERVICES ISDN SERVICES UNIVERSAL PERSONAL TELECOMMUNICATION HUMAN FACTORS F.160-F.199 F.200-F.299 F.300-F.349 F.350-F.399 F.400-F.499 F.500-F.549 F.550-F .579 F. 580-F .599 F.600-F.699 F.700-F.
6、799 F.800-F.849 F.850-F.899 F .900-F .999 ForBrther details, please refer to ITU-T List of Recommendations. COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling ServicesSTDmITU-T RECMN FmLLb-ENGL 2000 48b257L Ob?L?lt5 439 ITU-T RECOMMENDATION F.116
7、SERVICE FEATURES AND OPERATIONAL PROVISIONS IN IMT-2000 Summary IMT-2000 systems are third generation mobile systems, which may be terrestrial, or satellite-based and may be characterized as networks in terms of service provision. This Recommendation describes service features and operational provis
8、ions that apply to IMT-2000 systems. It defines a set of service features and capabilities to standardize service presentation and to facilitate global mobility for users across network boundaries. Some of these services features and capabilities are essential whilst others are optional. Source ITU-
9、T Recommendation F.116 was prepared by ITU-T Study Group 2 (1997-2000) and was approved under the WTSC Resolution No. 1 procedure on 13 March 2000. COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling ServicesSTD-ITU-T RECMN F- all users of this Rec
10、ommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is regularly published. - - ITU-T Recommendation F. 1 1 1 (1 991), Principles of servi
11、ce for mobile systems. ITU-T Recommendation F. 1 1 5 (1 995), Service objectives and principles for Juture public land mobile telecommunication systems. - ITU-T Recommendation F.700 (2000), Framework Recommendation for audiovisual/multimedia sewices. - ITU-T Recommendation Q. 1701 (1999), Framework
12、for IMT-2000 networks. - Recommendation ITU-R M.816-1 (1997), Framework for sewices supported on International Mobile Telecommunications 2000 (IMT-2000). Recommendation ITU-R M. 1078 (1 993), Security principles for International Mobile Telecommunications 2000 (IMT-2000). Recommendation ITU-R M. 122
13、3 (1 997), Evaluation of security mechanisms for IMT-2000. - - 4 Terminology This Recommendation defines the following terms: 4.1 mobile terminal: For the purpose of this Recommendation, this term includes both the radiocommunication equipment, specific service equipment (e.g. telephone (handset), f
14、ax machine) and user identity module (UIM). Several types of terminal equipment (e.g. ISDN TE) may be connected to a mobile terminal. COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling ServicesSTDmITU-T RECMN F.11b-ENGL 2000 4862593 Ob71721 732 81
15、8 4.2 User Identity Module (UIM): A standard device or functionality providing secure procedures in support of user or terminal registration, authentication, and privacy for wireless access to IMT-2000. It may also contain application data to be used to facilitate telecommunication services and othe
16、r services (e.g. UPT, banking). 4.3 virtual home environment: Virtual home environment (VHE) is a capability whereby a user is offered the same service experience in a visited network as in his home network. The degree to which the VHE matches the actual home environment may, for example, be subject
17、 to the degree of cooperation between the visited and home network, their relative technical capabilities and the compatibility of the user terminal. 5 Mobility concept 5.1 Terminal mobility The ability of the terminal to access telecommunication services fi-om different locations while in motion an
18、d the capability of the network to identi and locate that terminal. NOTE - The term “motion“ includes the stationary state. This mobility aspect does not preclude the concept of fixed terminals participating in IMT-2000. 5.2 Standard terminal equipment portability The ability to connect terminal equ
19、ipment to IMT-2000 mobile terminals. 5.3 IMT-2000 user mobility IMT-2000 user mobility is a feature which enables an IMT-2000 user to transfer hidher identity between IMT-2000 mobile terminals. The IMT-2000 user mobility affords the IMT-2000 user, with the application of a user identity module (e.g.
20、 “smart card“), to make an IMT-2000 mobile terminal hisher own mobile terminal. In this manner, the IMT-2000 user can access telecommunication services specified in their service profile with any IMT-2000 mobile terminal. 6 In IMT-2000, services should be offered in a flexible way so that the prefer
21、ences of each user can be fulfilled but without unduly constraining interoperability of, and roaming between, networks. For example, the user might be offered a choice of language in which to receive network prompts and announcements. The concept of Virtual Home Environment (WE) has been proposed as
22、 a means of facilitating such an approach. When WE is applied, depending on appropriate business arrangements and agreements, the following options exist: - the service profile of a user and the MMI (Man Machine Interface) which he is accustomed to are recorded, so that they can be transferred elect
23、ronically fiom the home network to the visited network; the service profile of a user and/or the MMI which he is accustomed to are partially stored in the UIM and the remaining information stored in the appropriate databases in the home network; the service profile of a user and the MMI which he is
24、accustomed to are stored completely in the UM. Support of flexible service provision - - COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling ServicesSTDaITU-T RECMN F-116-ENGL 2000 W 4862571 Ob71722 679 a For users who roam from their home network,
25、 each visited network can provide the same service-related functions in the same way as the home network, provided sufficient information has been supplied by the home network. 7 Universal bearer capability handling IMT-2000 systems should support services based on digital transmission in an efficie
26、nt, economical and user-friendly way. The service requester should have maximum freedom in communicating the characteristics of the requested service to the network. These characteristics might, include a combination of service types and their quality of service. The network should try to fulfill th
27、e requirement or propose a reasonable alternative to the requester. The universal bearer services should allow for the emulation of, and interworking with, existing second generation services, e.g. 3.1 kHz audio UDI, Multicast, Group Broadcast, Voice Broadcast, Groupcall. The following service types
28、 may be provided using ITU defined protocols or using IETF (Internet Engineering Task Force) defined protocols (IP). In the specific case of IP, both static and dynamic P-based addressing capabilities may be used to provide associated mobility support for services. Multiple concurrent session contro
29、ls may also be provided as a service provider option to avoid routing ambiguities. 7.1 Data service types The data service types supported by IMT-2000 are classified as follows: Communication configurations 8 PTP: Point-to-point service. PTM-B: Point-to-multipoint broadcast service. PTM-M: Point-to-
30、multipoint multicast service. MTM: Multipoint-to-multipoint (e.g. needed for multimedia services with different sources of content). Area selection geographical area selection; address domain selection; multicast group selection; static and dynamic addressing in IP. Communication modes for network s
31、ervices CLNS: Connectionless network service; CONS: Connection oriented network service; via ITU protocols or via IETF protocols. timing relationship between source and destination required; timing relationship between source and destination not required. Timing relationship COPYRIGHT International
32、Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling ServicesSTD-ITU-T RECMN F.11b-ENGL 2000 48b2591 Ob71723 505 Bit rate constant bit rate; variable bit rate; asymmetry. 7.2 Quality of service categories The quality of service that a user can request is described by categ
33、ories such as: Best effort or: w QoS guaranteed with parameters such as: - throughput; - bit rate; - delay characteristics; - Maximum Bit Error Rate. 7.3 Example combinations Depending on the attributes, Timing Relationship, Bit rate and Communication mode, different bearer classes can be distinguis
34、hed, which can occur within different communication configurations and area selections. They are Mer qualified by the set of QoS parameters. 8 Multimedia services combine two or more media into a single integrated service. From the users point of view, a multimedia telecommunication service is the c
35、ombination of IMT-2000 telecommunication capabilities required to support a particular multimedia application. From the IMT-2000 providers point of view, a multimedia telecommunication service is a combination or set of combinations of two or more media components (e.g. audio, video, graphics, etc.)
36、. Examples of MT-2000 multimedia services which could be supported by one or several multimedia communication tasks are: Support of multimedia services in IMT-2000 mobility services (specifically related to the mobility of the user, like location service); conference services (providing bidirectiona
37、l and synchronized real-time transfer of voice conversation services (allowing bidirectional dialogue communication with real-time end-to- distribution services (providing continuous flow of information fi-om a central source); retrieval services (allowing to retrieve information fiom one source at
38、a time); collection services (allowing to retrieve information from several sources in parallel); message services (offering user-to-user communications with store-and-forward and possibly moving pictures); end information transfer); capabilities). COPYRIGHT International Telecommunications Union/IT
39、U TelecommunicationsLicensed by Information Handling ServicesSTDmITU-T RECMN FmLlb-ENGL 2000 4Bb2591 Ob73724 443 9 IMT-2000 service capabilities 9.1 Privacy and fraud prevention Security mechanisms for the protection of the WIT-2000 user, service provider and network operator should provide for the
40、following features in order to guarantee a maximum of privacy and f-aud prevention, that are at least as good as in second generation wireless systems. The special security issues that arise from userhenninal mobility and inter-PLMN roaming shall be considered: - confidentiality of user messages; -
41、- privacy of billing data; - privacy of user/subscriber related data; authentication of user to UM, UIM to the network, network to UM, service provider to network operator, visited network to home network, etc.; event reporting and event limitation. - The features above should be fiilfilled in a way
42、 that is transparent to the user or is at least user- friendly. The impact on the quality of service in normal operation should be kept to a minimum. Service-related security features shall operate when roaming. The home network is informed if the visited network cannot provide the security function
43、s deemed essential by the home network operator, who shall then be enabled to take the appropriate action and assure the integrity of the service. Some security features could be an integral part of the services and should be defined by the service provider. For further details on security features
44、and security mechanisms for IMT-2000, refer to Recommendations ITU-R M.1078 and M.1223. 9.2 Emergency call support service Any IMT-2000 mobile terminal should be allowed to make a call attempt to an emergency call centre. The emergency call centre should be able to infer that the call was initiated
45、by a mobile terminal (e.g. based on trunk group). The current location of the mobile terminal, if available, is to be supplied to the emergency call centre. Upon answering the call, the emergency call centre shall be able to communicate with the caller over a normal voice connection. After establish
46、ment of the call with the emergency call centre, the caller may allow a party or parties previously put on “hold“ to join the conversation. Release occurs when either the caller or the emergency call centre disconnects. The emergency call centre should be supplied with sufficient information to enab
47、le it to re-establish the call to the caller after the emergency call is released. The emergency call concept is applicable to voice and Telecommunications Device for the DeaUText Telephony (TDD/TTY). National andor service provider options include: a) the concept of access for emergency call attemp
48、ts to be given preferential or priority access to the scarce radio resources compared with normal call attempts; the facility to permit call attempts to an emergency call centre to be subjected to a reduced level of authentication and validation. For example, a call may be made without a UM in the t
49、erminal. b) COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling Services - STDmlTU-T RECflN FmILb-ENGL 2000 48b25qL 07725 344 9.3 Man-Machine Interface (MMI) functions MMI plays a role of the users terminal access, network access, call setup, and service control. It should be possible for the user to customize certain aspects of the MI. The presentation of a familiar MMI to the user should form a central part of the Virtual Home Environment (WE). The service provider may be able to offer tailored MMI solutions using VHE. Th
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