1、 ETSI TR 181 007 V2.1.1 (2006-10)Technical Report Telecommunications and Internet converged Services andProtocols for Advanced Networking (TISPAN);Overview of Messaging ServicesETSI ETSI TR 181 007 V2.1.1 (2006-10) 2 Reference RTR/TISPAN-01050-NGN-R2 Keywords MHS, MMS, SMS ETSI 650 Route des Luciole
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6、e foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2006. All rights reserved. DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of its Members. TIPHONTMand the TIPHON logo are Trade Marks currently being regist
7、ered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI ETSI TR 181 007 V2.1.1 (2006-10) 3 Contents Intellectual Property Rights4 Foreword.4 Introduction 4 1 Scope 5 2 References 5 3 Abbreviat
8、ions .5 3.1 Abbreviations .5 4 Messaging services.5 4.1 Instant Messaging.6 4.2 Chat 6 4.3 Email 6 4.4 SMS7 4.5 MMS 7 4.6 Messaging in the IMS.7 5 IMS messaging.8 5.1 Messaging types .8 5.2 Messaging architecture.9 5.2.1 Immediate Messaging Architecture 9 5.2.2 Session Based Architecture.10 6 SMS an
9、d MMS for fixed line customers10 6.1 Overview of Scenarios .10 6.2 Stage 1 service descriptions12 History 13 ETSI ETSI TR 181 007 V2.1.1 (2006-10) 4 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining
10、 to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat.
11、 Latest updates are available on the ETSI Web server (http:/webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the up
12、dates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Technical Report (TR) has been produced by ETSI Technical Committee Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN). Introduction Ther
13、e are many types of messaging in common use today, both as Telecommunications and Internet services, and the present document provides an overview of the different types of messaging. ETSI has specified Short Message Services and Multi-Media Messaging Services that may deployed in different scenario
14、s and networks. The present document describes some of the scenarios to provide guidance to manufacturers, users and network operators of the applicability of the various ETSI service specifications. ETSI ETSI TR 181 007 V2.1.1 (2006-10) 5 1 Scope The present document describes some of the different
15、 types of messaging (based on TR 122 940 1) and provides informative guidance on the areas of application of the Short Message Services and Multi-Media Messaging Services specified by ETSI. The present document does not provide guidance on the services in mobile environments (e.g. GSM). The present
16、document does not specify the services and does not provide service requirements. 2 References For the purposes of this Technical Report the following references apply: NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee their long term vali
17、dity. 1 ETSI TR 122 940 (V7.0.0): “Universal Mobile Telecommunications System (UMTS); IP Multimedia Subsystem (IMS) messaging; Stage 1 (3GPP TR 22.940 version 7.0.0 Release 7)“. 2 ETSI TS 122 340 (V7.0.0): “Universal Mobile Telecommunications System (UMTS); IP Multimedia Subsystem (IMS) messaging; S
18、tage 1 (3GPP TS 22.340 version 7.0.0 Release 7)“. 3 Abbreviations For the purposes of the present document, the following abbreviations apply: 3GPP 3rd Generation Partnership Project GSM Global System for Mobile IM Instant/Immediate MessageIMS IP Multimedia Subsystem IP Internet Protocol ISDN Integr
19、ated Services Digital Network MM Multimedia MMS Multimedia Messaging Service MM-TE Multimedia Message Terminal Equipment NGN Next Generation Network PSTN Public Switched Telephone Network SIP Session Initiation Protocol SMS Short Message Service SM-SC Short Message Service Centre SM-TE Short Message
20、 Terminal Equipment UMTS Universal Mobile Telecommunication System W-LAN Wireless-Local Area Network 4 Messaging services In todays world there are many different types of messaging services available both in the wired and wireless worlds. Some services are supported in both, others are only found i
21、n one. For example, SMS has been designed for a wireless environment, although it can now be found in some fixed networks, whereas Instant Messaging has been designed for a wired environment, although again some mobile networks have implemented Instant Messaging type services. The expectations of th
22、ese services also differ in that some services are designed to be used in what is perceived as “real time“ and others are designed as a “mailbox“ service where the message is stored ready for collection or delivery at a later date. This clause investigates current messaging services and examines the
23、 expectations and differences between them. ETSI ETSI TR 181 007 V2.1.1 (2006-10) 6 In summary, this clause highlights the important fact that services where the message is delivered in what is perceived as real time by the user, are currently only being offered within the wired world, whereas all s
24、tandardized services within the wireless world can be classed as non-real time. NGN provides a convergence between the fixed and mobile (wired and wireless) worlds, and therefore needs to support both real time and non-real time messaging services. It is therefore important to consider the issues an
25、d impacts that surround these types of services when deploying in a converged wired and wireless world. The following clause provide a brief description of the more common messaging services that can be found in the market place today. 4.1 Instant Messaging Instant Messaging is becoming popular with
26、in the Internet world although interoperability between services is not widely available. The popularity is party due to the attraction of users being able to converse with one another without the need for voice. There are many scenarios where this is an advantage, for example, noisy areas, such as
27、the pit lanes used in F1 motor racing. The expectation of the service from a users viewpoint is to be able to communicate with other users in real time. Therefore the service relies on a communications association between the originator and the recipient in order to meet this expectation. The servic
28、e is primarily text based, although most services allow for various attachments to be added; however the delivery expectation of the attachment is not consider to be real time. Most applications include access to a “Presence“ service to allow users to see who is available for Instant Messaging, howe
29、ver this is not mandatory. If the recipient is not available then most Instant Messaging services allow for the storage of a message until the recipient becomes available, acting in a very similar manner to that of SMS. In terms of the originating and delivery process there is a requirement to provi
30、de what is perceived as a real time connection between the two parties for the basic transfer of messages between the parties, however for attachments the perception is that these will be delivered in a background mode. 4.2 Chat Chat has established itself within the Internet environment as a popula
31、r service. The service enables people to send text to a central point (chat server) allowing all of those users who are connected to the central point to view the text. Interoperability between “Chat“ rooms is not seen to be necessary within the Internet world as all users have the capability (if no
32、t the authorization) to join the same chat room. However, Chat may evolve into a messaging service that requires “Chat“ rooms to interoperate, but for the foreseeable future this is not a requirement. Chat rooms can be divided into two categories, Private and Public, each providing a very similar se
33、rvice but different in the authorization of use. The Chat services of today are primarily text based, allowing messages to be sent to all those within the chat room or to selected users. Likewise attachments can be sent but as with the Instant Message service the expected delivery of these is not co
34、nsidered to be “real time“. In terms of the originating and delivery process there is a requirement to provide what is perceived as a real time connection between the originator and the recipients. 4.3 Email Email is used everyday and can be viewed as probably the most popular method of messaging cu
35、rrently available. The architecture for email is well known and established, with protocols that allow interoperability between various email systems. Email is very similar to that of MMS in that it is a non-real time service where the originator does not rely on the fact that the recipient of the m
36、essage is on-line using the system. The messaging service allows a user to deposit a message in the mailbox of the recipient to be collected/read by the recipient at an appropriate time. In terms of the originating and delivery process there is no requirements for a real time connection. Neither the
37、 originator nor the recipient perceives that the message will be delivered in real time. ETSI ETSI TR 181 007 V2.1.1 (2006-10) 7 4.4 SMS The SMS messaging service allows a message to be created on a mobile device irrespective of whether the device is connected to a network or not. Once connected to
38、an appropriate network, the user can send the message to the originators home SM-SC, where it is stored until it is possible for the SM-SC to deliver the message to the recipient. (please note that it is technically possible to send the message to any SM-SC). Because of the short delivery times some
39、times experienced by users of the SMS service, it could be perceived as being a real time service. However, “real time“ delivery cannot be guaranteed due to the fact that there is no communications association between the originator and the recipient, only the originator and the SM-SC, and therefore
40、 the SMS service should not be considered as a “real time“ service. SMS has already been described for use in a fixed (wired) environment. 4.5 MMS SMS has been very successful messaging service within in the second-generation GSM system. In the third generation mobile system it is envisaged that the
41、 Multimedia Messaging Service, MMS, shall succeed this easy to use, non real-time text transmission service. The MMS will allow users to send and receive messages exploiting the whole array of media types available today, e.g. text, images, audio, video, while also making it possible to support new
42、content types as they become popular. MMS has already been described for use in a fixed (wired) environment. As with SMS, the MMS message is created using the application on the device. Again, the device does not have to be connected to a network in order to create a message. Once connected to the n
43、etwork the message can be sent from the device to the originators MMS server, again similar to the SMS implementation. This can be classed as the originating process. However, the MMS delivery process differs to that of the SMS in that instead of sending the message directly to the recipient, the MM
44、S server forwards the message to the recipients MMS mailbox. Depending on the architecture, the recipient may be notified that a new MMS message has arrived in their inbox from which the recipient can then connect to their mailbox to retrieve the message or have the message pushed to them. Unlike SM
45、S where there is a degree of expectancy of a “real time“ service, users may perceive that the service is non-real time. Neither the originator nor the recipient perceives that the message will be delivered in real time, more of a service where a message can be deposited and retrieved at the recipien
46、ts will. 4.6 Messaging in the IMS 3GPP have developed the concept of IMS, which includes messaging capabilities in a SIP based IP network. One of the chief characteristics of SIP is its ability to rapidly and efficiently create real-time sessions between groups of users. 3GPP therefore propose a SIP
47、 based messaging as a potential candidate to provide the equivalent of “Chat Room“ and “Instant Messaging“ (IM) type services found on the Internet today. Typical characteristics of instant messaging are instant delivery of the messages to the targeted recipient(s) and interaction with presence info
48、rmation where users are able to see who is on-line as well as their status. A chat room is a “place“ where multiple persons can join, follow and contribute to the ongoing discussion and leave the “room“ at any time. Chat rooms are more permanent in nature when compared to IM exchanges and may be cre
49、ated by users or service providers. Additionally, chat rooms can be further divided to the private and public chat rooms. Normally, users who are participating in chat room will receive all the messages that are sent by the other participants. Similarly, the users are also able to send private messages to the chat room or even privately to some participant. Unfortunately, the most popular internet based instant messaging services are usually based upon closed and proprietary protocols which has made it impossible for different service providers to allow interoperable mes
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