1、 ETSI TR 1Digital cellular telecoUniversal Mobile TelMultimedia pri(3GPP TR 22.9TECHNICAL REPORT 122 953 V13.0.0 (2016communications system (Phaelecommunications System (LTE; riority service feasibility stud.953 version 13.0.0 Release 1316-01) hase 2+); (UMTS); udy 13) ETSI ETSI TR 122 953 V13.0.0 (
2、2016-01)13GPP TR 22.953 version 13.0.0 Release 13Reference RTR/TSGS-0122953vd00 Keywords GSM,LTE,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 So
3、us-Prfecture de Grasse (06) N 7803/88 Important notice The present document can be downloaded from: http:/www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document shall
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9、3 V13.0.0 (2016-01)23GPP TR 22.953 version 13.0.0 Release 13Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members,
10、 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. Latest updates are available on the ETSI Web server (https:/ipr.etsi.org/). Pursuant to
11、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 updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. F
12、oreword This Technical Report (TR) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or GSM identities. These should be interpreted as being references to the corresp
13、onding ETSI deliverables. The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under http:/webapp.etsi.org/key/queryform.asp. Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot
14、“ 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 except when used in direct citation. ETSI ETSI TR 122 953 V13.0.0 (2016-01)33GPP TR 22.953 version 13.0.0 Release
15、13Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 4g3Introduction 4g31 Scope 6g32 References 6g33 Definitions and abbreviations . 6g33.1 Definitions 7g33.2 Abbreviations . 7g34 High-level requirements . 7g34.1 Priority Session origination 7g34.2 Priority
16、Session establishment to called party 7g34.3 Priority Session progression . 7g34.4 Priority radio resource queuing 7g34.5 Priority levels . 7g34.6 Invocation on demand 7g34.7 Applicability to telecommunications services 8g34.8 Multimedia Priority Service code/identifier . 8g34.9 Roaming . 8g34.10 Ha
17、ndover 8g34.11 Charging . 8g34.12 Queuing requests for bearer resources 8g34.13 Reversion from UTRAN to RAN . 9g35 Additional description of multimedia priority service . 9g35.1 Priority Session setup/invocation . 9g35.2 Priority session progression 9g35.3 Priority session establishment to called pa
18、rty . 9g35.4 Exception procedures or unsuccessful outcome . 10g36 Multimedia priority service gap analysis . 11g36.1 IP multimedia subsystem (IMS) . 11g36.2 Summary of IMS capabilities . 11g36.3 Support for Multimedia Priority Service 11g37 Conclusion 11g3Annex A (informative): Use Cases 13g3Annex B
19、 (informative): Change history . 16g3History 17g3ETSI ETSI TR 122 953 V13.0.0 (2016-01)43GPP TR 22.953 version 13.0.0 Release 13Foreword This Technical Report has been produced by the 3rdGeneration Partnership Project (3GPP). The contents of the present document are subject to continuing work within
20、 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 number as follows: Version x.y.z where: x the first digit: 1 presented to TSG for
21、 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, updates, etc. z the third digit is incremented when editorial only changes have
22、been incorporated in the document. Introduction This Technical Report (TR) presents the results of the feasibility study on Multimedia Priority Service. The intent of this feasibility study is to assess the ability of 3GPP specifications to meet high-level requirements identified for Multimedia Prio
23、rity Service. This feasibility study consisted of a multi-step process, namely: - Identify high-level requirements for Multimedia Priority Service. - Determine relevant 3GPP specifications for Multimedia Priority Service. - Perform a gap analysis to assess the ability of existing 3GPP specifications
24、 to meet the high-level Multimedia Priority Service requirements. As defined in this document, Multimedia Priority Service allows qualified and authorized users to obtain priority access to the next available radio channel on a priority basis before other PLMN users during situations when PLMN conge
25、stion is blocking session establishment attempts. In addition, Multimedia Priority Service supports priority sessions an “end-to-end“ priority basis. Multimedia Priority Service is intended to be used by qualified and authorized users, i.e., emergency service personnel, only during times of emergenc
26、y situations and network congestion. Access to Multimedia Priority Service is limited to key personnel and those with leadership responsibilities and is not intended for use by all emergency service personnel. This is to ensure that emergency service personnel cannot “take over“ the network and deny
27、 other non-emergency service subscribers a reasonable level of service. Multimedia Priority Service providers should adhere to uniform, nationwide operating access procedures. Multimedia Priority Service can provide significant benefits for public safety. There may be times during emergencies when n
28、on- Service Users will be unable to obtain access to their wireless services (because Multimedia Priority Service personnel are using the channels); nevertheless, the benefits of Multimedia Priority Service outweigh any inconvenience to non-Service Users. It is assumed that Multimedia Priority Servi
29、ce will be available at all times in equipped markets in both the HPLMN and VPLMN within a country where the PLMN provider is offering the service. The capability for pre-emption could be supported, with the option to turn it on/off depending on regional requirements. Multimedia Priority Service is
30、applicable to both GERAN and UTRAN and is activated on a per session basis using Multimedia Priority Service procedure described in clause 4.8. ETSI ETSI TR 122 953 V13.0.0 (2016-01)53GPP TR 22.953 version 13.0.0 Release 13Multimedia Priority Service, supported by the 3GPP system set of services and
31、 features, is one element in the ability to deliver calls of a high priority nature from mobile to mobile networks, mobile to fixed networks, and fixed to mobile networks. ETSI ETSI TR 122 953 V13.0.0 (2016-01)63GPP TR 22.953 version 13.0.0 Release 131 Scope This Technical Report (TR) presents the r
32、esults of the feasibility study on Multimedia Priority Service. The intent of this feasibility study is to assess the ability of 3GPP specifications to meet high-level requirements identified for Multimedia Priority Service. This feasibility study consisted of a multi-step process, namely: - Identif
33、y high-level requirements for Multimedia Priority Service. - Determine relevant 3GPP specifications for Multimedia Priority Service. - Perform a Gap Analysis to assess the ability of existing 3GPP specifications to meet the high-level Multimedia Priority Service requirements. Additional functionalit
34、ies not documented in this TR are considered outside the scope of this TR. Such additional functionality may be on a network-wide basis, nation-wide basis or particular to a group of users The Multimedia Priority Service is intended to be utilised for both Voice and Data in the Packet-switched (PS)
35、domain and the IP Multimedia Subsystem (IMS). The Multimedia Priority Service is intended to interwork with external networks to provide an end-to-end service. Therefore, service interactions with external networks are considered within the scope of this document, although the specification of these
36、 interactions may be in other standards. If this occurs, a reference to that specification is made. 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 publ
37、ication, edition number, version number, etc.) or non-specific. For a specific 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
38、to the latest version of that document in the same Release as the present document. 1 3GPP TS 21.905: “Vocabulary for 3GPP Specifications“. 2 3GPP TS 22.228: “Service requirements for the Internet Protocol (IP) multimedia core network subsystem (IMS); Stage 1“. 3 3GPP TS 23.228: “IP Multimedia Subsy
39、stem (IMS); Stage 2“. 4 3GPP TS 24.229: “Internet Protocol (IP) multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3“. 5 3GPP TS 23.002: “Network architecture“. 6 3GPP TR 22.952: “Priority Service Guide“. 7 IETF RFC 4412: “Commun
40、ications Resource Priority for Session Initiation Protocol (SIP)“. 8 3GPP TR 22.950: “Priority Service feasibility study“. 3 Definitions and abbreviations Refer to 1 for definitions and abbreviations used in this document that are not defined below. ETSI ETSI TR 122 953 V13.0.0 (2016-01)73GPP TR 22.
41、953 version 13.0.0 Release 133.1 Definitions Service User: Subscriber to Multimedia Priority Service 3.2 Abbreviations MPS Multimedia Priority Service 4 High-level requirements The following clauses describe the high-level requirements to support Multimedia Priority Service. These high-level require
42、ments are used as a basis for the gap analysis described in Clause 6. 4.1 Priority Session origination A session shall receive priority ingress treatment (priority access to voice or traffic channels) for session origination, when the session is setup by a Service User using the multimedia priority
43、service procedure described in clause 4.8. 4.2 Priority Session establishment to called party A session shall receive priority egress treatment (priority access to voice or traffic channels) for session delivery to the terminating resource/user (e.g., called party), when the session is setup by a Se
44、rvice User using the priority service procedure described in clause 4.8. 4.3 Priority Session progression The Service User shall receive priority session treatment/progression through the mobile network(s). A priority session should be given higher priority over normal sessions in the originating mo
45、bile network, the interconnected networks and the terminating network. 4.4 Priority radio resource queuing Multimedia Priority Service assumes a signalling channel is available. When a Multimedia Priority Service session encounters a “no radio available“ condition in the session path involving an in
46、gress or egress air-interface, or both, and, - at session origination, and upon recognition of the Multimedia Priority Service code, the Multimedia Priority Service session request is queued in the cell serving the calling party and processed for the next available radio channel in that cell in acco
47、rdance with the caller“s priority level and session initiation time. - at session termination upon recognition of a priority session indication in an incoming session request, the Multimedia Priority Service session request is queued in the cell serving the called party and processed for the next av
48、ailable radio channel in that cell in accordance with the session“s priority level and request arrival time. 4.5 Priority levels A Service User shall be assigned one of n priority levels. Priority levels are defined as 1, 2, 3, , n , with 1 being the highest priority level and n being the lowest pri
49、ority level. 4.6 Invocation on demand Multimedia Priority Service is invoked only when requested and an idle voice or traffic channel required for an origination request is not available. ETSI ETSI TR 122 953 V13.0.0 (2016-01)83GPP TR 22.953 version 13.0.0 Release 13If an idle voice or traffic channel is available when Multimedia Priority Service is requested, the origination request is allowed to proceed normally without delay. Invocation of Multimedia Priority Service at ingress access (origination), during session progression (end-to-end), or egr
