1、 Reference number ISO 15662:2006(E) ISO 2006INTERNATIONAL STANDARD ISO 15662 First edition 2006-12-15 Intelligent transport systems Wide area communication Protocol management information Systmes de transport intelligents Communication tendue Protocole de gestion de lInformation ISO 15662:2006(E) PD
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6、ry of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2006 All rights reservedISO 15662:2006(E) ISO 2006 All rights reserved iii Contents Page Foreword iv Introd
7、uction v 1 Scope . 1 2 Normative references . 2 3 Terms and definitions. 2 4 Requirements for protocol management information items 2 4.1 Selection of communication system 2 4.2 Application identifiers 8 4.3 Address 9 4.4 Priority . 11 4.5 Security 12 4.6 Application execution. 14 Annex A (normative
8、) Protocol management information structure . 17 Annex B (normative) Protocol management information data type definition 18 Annex C (informative) Protocol management information usage. 21 Annex D (informative) Extracting protocol management information items . 32 Bibliography . 34 ISO 15662:2006(E)
9、 iv ISO 2006 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body inter
10、ested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical
11、 Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the te
12、chnical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IS
13、O shall not be held responsible for identifying any or all such patent rights. ISO 15662 was prepared by Technical Committee ISO/TC 204, Intelligent transport systems. ISO 15662:2006(E) ISO 2006 All rights reserved v Introduction Most of the application services in the ITS sector use a variety of wi
14、de area communication systems in order to connect user terminals and “Service Centres”. In addition, the application services that are currently being provided connect specific user terminals to specific service centres using specific wide area communications systems. In other words, the various con
15、ditions that must be established to provide services are fixed. However, when the future modes of service use are considered, it is assumed that a user will utilize the same terminal to access “Service Centre A” in some cases and “Service Centre B” in other cases. It can also be assumed that in some
16、 cases the user may be on foot and in others he or she may be travelling in a vehicle. It can also be assumed that some users may access the service centre from “smart phones”, while others may do so from navigation systems, while still others may do so using interactive TVs. When a variety of user
17、terminals use a variety of wide area communications systems to connect to a variety of service centres in this manner, the type and content of the conditions that must be established will differ for each individual service usage. In order to provide appropriate service based on these conditions, it
18、is crucial to establish a mechanism by which the type of conditions and the content established for them are transmitted to an appropriate entity and interpreted. This International Standard summarizes information as a checklist to consider internal processing in communication systems, terminals and
19、 so forth (“protocol management information”) suitable for providing ITS application services utilizing wide area communication systems. INTERNATIONAL STANDARD ISO 15662:2006(E) ISO 2006 All rights reserved 1 Intelligent transport systems Wide area communication Protocol management information 1 Sco
20、pe This International Standard provides information as a checklist to consider handling messages that are defined by the application working groups of ISO/TC 204, installing systems and selecting suitable wide area communication systems for providing ITS application services. The usages of this info
21、rmation are for frameworks of message headers, pay load items for initializing communication links, checklists for system design and so on. Thus, these information items are not necessarily contained in message instances and/or headers that are actually transmitted. For example, this information is
22、used to organize the characteristics of messages such as those requesting hand-over based on the relationship between the size of the information service area and the communication range of each communication system (see Figure 1). Figure 1 Scope of 15662 (in the architecture of ISO/TC 204/WG 16) IS
23、O 15662:2006(E) 2 ISO 2006 All rights reserved2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any a
24、mendments) applies. ISO 14817, Transport information and control systems Requirements for an ITS/TICS central Data Registry and ITS/TICS Data Dictionaries 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 14817 and the following apply. 3.1 protocol man
25、agement information information as a checklist to consider handling messages that are defined by the application working groups of ISO/TC 204, installing systems and selecting suitable wide area communication systems for providing ITS application services NOTE Protocol management information items a
26、re not necessarily contained in message instances and/or headers that are actually transmitted. 4 Requirements for protocol management information items Protocol management information is defined as follows and its structure is described in Annex A. Each item is defined in the abstract, so it does n
27、ot specify location and time reference manner, granularity and so on. If some service providers use them for message headers, they shall define the code strictly. 4.1 Selection of communication system This information is for selecting the wide area communication system to be used for the response in
28、 accordance with the requirements for executing the application service, the usage environment of the service user, the status of the user terminal and so forth. 4.1.1 Responsiveness 4.1.1.1 Descriptive name ProtocolManagementInformation. responsiveness 4.1.1.2 ASN.1 object identifier iso(1) standar
29、d(0) iso15662(15662) protocolManagementInformation(1) selectionOfCommunicationSystem(1) responsiveness(1) 4.1.1.3 Definition This information represents the response speed and allowed delay time while receiving services in terms of whether response will take place in real time and how much delay tim
30、e will be allowed. In cases where response time is conditioned for executing application services, the wide area communication system shall be selected in accordance with the required response time, and this information can be used to make such assessment. Furthermore, in case of receiving informati
31、on in an “on demand” mode, this information indicates the time from request until reception, for emergency bulletins, it indicates the time until the information reaches the other party, and for transportation support and the like, it indicates the time until forward road status, pavement status or
32、other services are completed. ISO 15662:2006(E) ISO 2006 All rights reserved 3 The following depict some examples of categories: Within 1 second, Within 30 seconds, Within 1 minute, Within 15 minutes, 15 minutes or longer. In addition, the required response time may be concretely specified as necess
33、ary. 4.1.1.4 Descriptive name context “Protocol management information”. 4.1.1.5 Data concept type Data element concept. 4.1.2 Directionality 4.1.2.1 Descriptive name ProtocolManagementInformation. directionality 4.1.2.2 ASN.1 object identifier iso(1) standard(0) iso15662(15662) protocolManagementIn
34、formation(1) selectionOfCommunicationSystem(1) directionality(2) 4.1.2.3 Definition This information indicates the combinations of unidirectional or bidirectional and symmetric or asymmetric with respect to transmission and reception of information. In cases where the directionality of communication
35、s (unidirectional, interactive, etc.) is needed to execute application services, the wide area communication system shall be selected in accordance with the type of communication (unidirectional or bidirectional, symmetric or asymmetric), and this information can be used to make such assessment. Fur
36、thermore, interactive indicates cases where a response is expected to a given message, while unidirectional indicates cases where a response is not expected to a message. The following depict combination examples: Unidirectional: In the case of an uplink, this corresponds to information provided fro
37、m the vehicle such as emergency bulletins. In the case of a downlink, it corresponds to cases in which the service user cannot (or does not need to) make a request in order for the service provider to make the decision to start service. Interactive-symmetric: When service begins in response to a req
38、uest from the service user and the amount of data being transmitted and data being received is almost equal. Interactive-asymmetric (large uplink): When service begins in response to a request from the service user and when the amount of data being transmitted is greater than the amount of data bein
39、g received. Interactive-asymmetric (large downlink): When service begins in response to a request from the service user and when the amount of data being received is greater than the amount of data being transmitted. ISO 15662:2006(E) 4 ISO 2006 All rights reserved4.1.2.4 Descriptive name context “P
40、rotocol management information”. 4.1.2.5 Data concept type Data element concept. 4.1.3 Usage environment 4.1.3.1 Descriptive name ProtocolManagementInformation. usageEnvironment 4.1.3.2 ASN.1 object identifier iso(1) standard(0) iso15662(15662) protocolManagementInformation(1) selectionOfCommunicati
41、onSystem(1) usageEnvironment(3) 4.1.3.3 Definition This information represents the combination of the means of transportation when using services and the speed of movement when receiving services. Depending on the usage environment of the service user, the requirements for responsiveness and directi
42、onality may not be met in some cases. For this reason, the wide area communication system shall be selected in accordance with the means of transportation, speed of movement and other usage environment factors, and this information can be used for making such assessment. The following depict example
43、s of categories by means of transportation: Vehicle: In the case of driving a vehicle; Public transportation: In the case of riding on public transportation; Pedestrians: In the case of being on foot or on a bicycle; Other categories: Bicycle, Motorcycle, Moped, Car, Truck, Emergency vehicle, Bus, T
44、ram, Train, Ferry, Taxi, etc. The following indicate examples of categories by speed of movement: Fast: In the case of travelling on expressways, case of travelling on a railroad (60-350 km/h); Medium speed: In the case of travelling on ordinary roads (20-60 km/h); Slow: In the case of travelling sl
45、owly at speeds at which it is possible to stop quickly (less than 20 km/h); Stopped: In the case of not being in motion. In addition, the speed may be more precisely specified as necessary. 4.1.3.4 Descriptive name context “Protocol Management Information”. ISO 15662:2006(E) ISO 2006 All rights rese
46、rved 5 4.1.3.5 Data concept type Data element concept. 4.1.4 Service (provision) area 4.1.4.1 Descriptive name ProtocolManagementInformation. serviceArea 4.1.4.2 ASN.1 object identifier iso(1) standard(0) iso15662(15662) protocolManagementInformation(1) selectionOfCommunicationSystem(1) serviceArea(
47、4) 4.1.4.3 Definition This information represents the range/areas at which users receive services and the need for continuity. In cases where a service area and the continuity of this area and other conditions are required to use application services, the wide area communication system shall be sele
48、cted to match the areas in which service can be provided, and this information can be used to make such assessment. The following depict examples of categories for continuity: Continuous area designation: When the area in which service is provided shall be continuous and users shall be able to use t
49、he service anywhere (this can be broken down into two types: “area-wide continuity” covering an entire area and “linear continuity” limited to a specific route); Non-continuous: When service can only be used in specific non-continuous locations. In addition, positional information of the range and areas at which services are provided are specified as the range/areas (see Figure 2). Key 1 area in which service is provided Figure 2 Service provision areas ISO 15662:2006(E) 6 ISO 2006
