ETSI TR 122 985-2018 Universal Mobile Telecommunications System (UMTS) Service requirements for the User Data Convergence (UDC) (V15 0 0 3GPP TR 22 985 version 15 0 0 Release 15).pdf

1、 ETSI TR 122 985 V15.0.0 (2018-07) Universal Mobile Telecommunications System (UMTS); Service requirements for the User Data Convergence (UDC) (3GPP TR 22.985 version 15.0.0 Release 15) TECHNICAL REPORT ETSI ETSI TR 122 985 V15.0.0 (2018-07)13GPP TR 22.985 version 15.0.0 Release 15Reference RTR/TSGS

2、-0122985vf00 Keywords UMTS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice The present document

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15、inology In the present document “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables ex

16、cept when used in direct citation. ETSI ETSI TR 122 985 V15.0.0 (2018-07)33GPP TR 22.985 version 15.0.0 Release 15Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 4g31 Scope 5g32 References 5g33 Definitions, symbols and abbreviations . 5g33.1 Definitions 5

17、g33.2 Symbols 5g33.3 Abbreviations . 5g34 General description. 5g34.1 Introduction 5g35 User Data 8g35.1 User data basic concept 8g35.2 User data category 8g35.2.1 Introduction. 8g35.2.2 User Subscription Data . 8g35.2.3 User content Data . 8g35.2.4 User Behaviour Data . 9g35.2.5 User Status Data .

18、9g35.3 User data convergence 9g35.4 Common baseline information model and data model . 10g35.4.1 Introduction to User Data Modelling 10g35.4.2 Requirements for the baseline information model 10g35.4.3 Requirement for data models 11g35.4.4 Management of information model and data model . 11g36 Requir

19、ement of user data convergence. 12g36.1 Introduction 12g36.2 Redundancy, Scalability and Load control Aspects . 13g36.3 Network Considerations . 13g36.4 User data interface 13g36.5 Subscription/Notification . 13g36.6 Access control 13g36.7 Management of user data . 14g36.7.1 Self care system: . 14g3

20、6.7.2 Application server and user service configuration 14g36.8 Data federation . 14g3Annex A: Change history 15g3History 16g3ETSI ETSI TR 122 985 V15.0.0 (2018-07)43GPP TR 22.985 version 15.0.0 Release 15Foreword This Technical Report has been produced by the 3rdGeneration Partnership Project (3GPP

21、). The contents of the present document are subject to continuing work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an identifying change of release date and an increase in version numb

22、er as follows: Version x.y.z where: x the first digit: 1 presented to TSG for information; 2 presented to TSG for approval; 3 or greater indicates TSG approved document under change control. y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, upd

23、ates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TR 122 985 V15.0.0 (2018-07)53GPP TR 22.985 version 15.0.0 Release 151 Scope The present document describes the concept of the 3GPP User Data Convergence (UDC). It furthermore co

24、llects some architectural requirements and should be taken as guideline in stage 2 and 3 work. The UDC will simplify the overall network topology and interfaces, avoid data duplication and inconsistency and simplify creation of new services by providing easy access to the user data. Special consider

25、ation is put on the following areas: - Categorization of the user data of services which would be converged in UDC - Identification of the requirements on the common data model framework with focus on extensibility - Identification of the requirements on the UDC for the support of new services inclu

26、ding their provisioning 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific. For a specif

27、ic reference, subsequent revisions do not apply. For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present do

28、cument. 1 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 3 Definitions, symbols and abbreviations 3.1 Definitions 3.2 Symbols 3.3 Abbreviations For the purposes of the present document, the abbreviations given in TR 21.905 1 and the following apply. An abbreviation defined in the present docu

29、ment takes precedence over the definition of the same abbreviation, if any, in TR 21.905 1. UDC User Data Convergence UDR User Data Repository 4 General description 4.1 Introduction In the current 3GPP system, user data are scattered in several domains (e.g. CS, PS, IMS) and different network entiti

30、es (e.g. HLR, HSS, Application Servers). With the increase of user data entities and the resulting data types, it is more difficult for integrated services to access necessary user information from plural entities. The scenario mentioned herein is kind of called “User Data Silo”, which is the major

31、paradigm of user data deployment for the time being, as illustrated by Fig.1. ETSI ETSI TR 122 985 V15.0.0 (2018-07)63GPP TR 22.985 version 15.0.0 Release 15Figure 1 User Data Silo With the user data silos, user data are independently accessed, stored and managed independently. That brings many chal

32、lenges to network deployment and evolution. Different user data access interfaces impose complexity on network topology as well as on application development, especially for booming Internet services and incoming IP-based UE applications; separated user data increases management workload. Moreover,

33、new networks and services such as IMS are expected, so that the introduction of their user data only makes things worse, not to mention network and service convergence even if those user data have a lot in common and are correlated to each other. Separation also undermines the value of user data min

34、ing. User data convergence is required to ensure the consistency of storage and data models. User data convergence will simplify overall network topology and interfaces, overcome the data capacity bottleneck of a single entry point, avoid data duplication and inconsistency and reduce CAPEX and OPEX.

35、 Also it will simplify the creation of new services and facilitate service development and deployment though a common set of user data. Finally it will promote service and network convergence to support the increasing number of new services including Internet services and UE applications. In this re

36、gard, a new facility User Data Repository (UDR) should be considered for user data convergence. Figure 2 User Data Convergence As illustrated by Fig. 2, User Data Convergence, as opposed to User Data Silo, is simply to move the user data from where it belonged, to a facility here called User Data Re

37、pository (UDR) where it can be accessed, stored and managed in a common way. Despite of the diversity of user data structures for different services, user data can be decomposed and reformed by a common data model framework (e.g. tree-like data model, rational data model) provided by UDR. In ETSI ET

38、SI TR 122 985 V15.0.0 (2018-07)73GPP TR 22.985 version 15.0.0 Release 15that case, user data categorized by services can be regrouped and identified by user ID, leaving no data redundancy. Also, convergence in data model will unify the user data access interface and its protocol, which will promote

39、new service application development. Thereby, the capability of user data convergence can be open to creation of data-less applications. ETSI ETSI TR 122 985 V15.0.0 (2018-07)83GPP TR 22.985 version 15.0.0 Release 155 User Data 5.1 User data basic concept There are plenty of data distributed in the

40、3GPP system which is used to perform the services, for instance, the configuration data of a network entity, the session data of a multimedia call, the IP address of a terminal, etc. With respect to user data, it refers to all kinds of the information related to users who make use of the services pr

41、ovided by the 3GPP system. In 3GPP system, user data is spread widely through the different entities (e.g. HLR, HSS, VLR, Application servers) and also the type of user data is various. It is of paramount importance to categorize the user data before going through the convergence of user data. 5.2 U

42、ser data category 5.2.1 Introduction The UDC shall support multiple application user data simultaneously, e.g. HSS and others. Any application can retrieve data from the UDC and store data in it. The applications shall be responsible of updating the UDC with the dynamic changes of the user profile d

43、ue to traffic reasons (e.g. user status, user location) or as a consequence of subscriber procedures. The hereafter data classification highlights some major differences regarding two of the characteristics : Size per user and real time applicability. 5.2.2 User Subscription Data Before a user can e

44、njoy a service, he may need to subscribe the service first. The subscription data relates to the necessary information the mobile system ought to know to perform the service. User identities (e.g. MSISDN, IMSI, IMPU, IMPI), service data (e.g. service profile in IMS) , and transparent data (data stor

45、ed by Application Servers for service execution) are the examples of the subscription data. This kind of user data has a lifetime as long as the user is permitted to use the service and may be modified during the lifetime. User may be accessed and configured via various means, e.g. customer service,

46、 web interface, UE Presence service. The subscription data is composed of different types such as authentication data, configuration data, etc. Different type of data may require different levels of security. 5.2.3 User content Data Some applications may have to store content defined by the user and

47、 that here may be quite large (e.g. Photos, videos) User content data can reach very high volume (e.g. Hundreds of Mbytes and more), and the size required to store them may largely vary over time. They generally do not require the real time constraints as user profile data may require. Storage of us

48、er data content is not typically subject of UDR. Storage of user data content is not typically subject of UDR. UDC on user content data can be achieved by converging them with links or references, such as URLs, to other entity. ETSI ETSI TR 122 985 V15.0.0 (2018-07)93GPP TR 22.985 version 15.0.0 Rel

49、ease 155.2.4 User Behaviour Data Such data concerns the usage of services by a user as services are consumed. Generally there are event data records that can be generated on various events in the usage of services by a user and that can be used not only for charging or billing purposes but e.g. for user profiling regarding user behaviour and habits, and that can be valuable for marketing purposes. The amount of such data is also quite different from other categories, they present a cumulative effect as such data can be continuously generated by the network implyin