1、 ETSI TS 122 129 V15.0.0 (2018-07) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Service aspects; Handover requirements between UTRAN and GERAN or other radio systems (3GPP TS 22.129 version 15.0.0 Release 15) TECHNICAL SPECIFICA
2、TION ETSI ETSI TS 122 129 V15.0.0 (2018-07)13GPP TS 22.129 version 15.0.0 Release 15Reference RTS/TSGS-0122129vf00 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 Associatio
3、n but non lucratif enregistre la Sous-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 ver
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7、ofilm except as authorized by written permission of ETSI. The content of the PDF version shall not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. ETSI 2018. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand th
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9、ed and owned by the GSM Association. ETSI ETSI TS 122 129 V15.0.0 (2018-07)23GPP TS 22.129 version 15.0.0 Release 15Intellectual Property Rights Essential patents IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information pertaining to these ess
10、ential 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. Latest updat
11、es are available on the ETSI Web server (https:/ipr.etsi.org/). 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 updates on the ETSI Web serve
12、r) which are, or may be, or may become, essential to the present document. Trademarks The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners. ETSI claims no ownership of these except for any which are indicated as being the property of ETSI
13、, and conveys no right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks. Foreword This Technical Specification (TS) has been produ
14、ced 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 corresponding ETSI deliverables. The cross reference bet
15、ween 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“ are to be interpreted as described in clause 3.
16、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 TS 122 129 V15.0.0 (2018-07)33GPP TS 22.129 version 15.0.0 Release 15Contents Intellectual Property Rights 2g3Forewo
17、rd . 2g3Modal verbs terminology 2g3Foreword . 5g31 Scope 6g31.1 Situations in which Service Requirements apply . 6g32 References 7g33 Definitions and Abbreviations 7g33.1 Definitions 7g33.2 Abbreviations . 8g34 General Principles governing service continuity 8g34.0 General Principles for service con
18、tinuity . 8g34.1 Service Continuity Scenarios . 8g34.2 Service Continuity requirements 8g34.2.1 Service continuity for CS 8g34.2.2 Service continuity for GPRS . 9g34.2.3 Service continuity for IM Services . 9g34.3 General Operational Considerations . 9g34.3.1 Coverage environment 9g34.3.2 Inter PLMN
19、 Handover Issues . 9g34.3.3 Charging and Network Management 10g34.3.4 Cost and efficiency . 10g34.3.5 Security . 10g34.4 Performance Requirements 10g34.4.1 Temporary degradation of service caused by handover 10g35 Requirements for Handover . 10g35.1 Handover due to UE Movement . 10g35.2 Handover due
20、 to negotiated service requirement . 10g35.3 Handover between Radio Access Modes . 11g35.4 Cell capacity . 11g35.5 Handover of a Multicall . 11g35.6 Access Rights . 11g35.7 Handover for shared networks 11g36 Requirements for Handover from UTRAN to GERAN . 12g36.1 Operational Requirements 12g36.1.2 G
21、ERAN bands 12g36.2 Performance Requirements 12g36.2.1 Detection Time of Potential GERAN Handover Candidates 12g36.2.2 Number of GERAN handover candidates to detect 12g36.2.3 Probability of Connection Loss 12g36.3 Specific Requirements for Individual Services from UTRAN to GERAN 12g36.3.1 Speech . 12
22、g36.3.2 Short Message Service 12g36.3.3 Cell Broadcast . 12g36.3.4 USSD 13g36.3.5 Facsimile . 13g36.3.6 Data Bearer Services . 13g36.3.6.1 Circuit Switched Data . 13g36.3.6.2 Packet Switched Data 13g36.3.7 Supplementary Services 13g36.4 Requirements on multiple bearer services handover from UTRAN to
23、 GERAN 13g37 Requirements for Handover from GERAN to UTRAN . 13g3ETSI ETSI TS 122 129 V15.0.0 (2018-07)43GPP TS 22.129 version 15.0.0 Release 157.1 Operational Requirements 13g37.1.2 GERAN bands 13g37.2 Performance Requirements 14g37.3 Specific Requirements for Individual Service Handover from GERAN
24、 to UTRAN . 14g37.3.1 Speech . 14g37.3.2 Short Message Service 14g37.3.3 Cell Broadcast . 14g37.3.4 USSD 14g37.3.5 Facsimile . 14g37.3.6 Data Bearer Services . 14g37.3.6.1 Circuit Switched Data . 14g37.3.6.2 Packet Switched Data 14g37.3.7 Supplementary services 14g37.4 Requirements on multiple beare
25、r services handover from GERAN to UTRAN 14g38 Cross Phase Compatibility for this release . 15g38.1 Compatibility with Existing Specifications 15g38.2 Compatibility with Future 3GPP specifications . 15g38.2.1 Requirements for Service Capabilities 15g38.2.2 Inter PLMN Handover Issues . 15g38.2.3 Hando
26、ver between Environments . 16g38.3 Support of Multicall with Simultaneous Voice Calls . 16g3Annex A (informative): Illustration of elements in inter-PLMN handover 17g3Annex B (informative): Open Points on Inter-Operator Handover 18g3B.2 Selection of Target Cells for Handover 18g3B.3 Network Informat
27、ion Exchange . 18g3B.4 Service Requirements . 18g3B.5 Billing, Accounting and Charging Requirements 18g3Annex C (informative): Change history . 19g3History 21g3ETSI ETSI TS 122 129 V15.0.0 (2018-07)53GPP TS 22.129 version 15.0.0 Release 15Foreword This Technical Specification has been produced by th
28、e 3GPP. 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 this TS, it will be re-released by the TSG with an identifying change of release date and an increase in version number as fo
29、llows: 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, updates, et
30、c. z the third digit is incremented when editorial only changes have been incorporated in the specification; ETSI ETSI TS 122 129 V15.0.0 (2018-07)63GPP TS 22.129 version 15.0.0 Release 151 Scope The scope of this document includes service requirements for handover maintaining continuity of service
31、to a wireless terminal as it moves between the radio coverage area, or “cells“, associated with different base station sites. This functionality is called “handover“. Handover can also occur due to change of radio resource providing a service without necessarily any change of the base stations invol
32、ved. In particular, when the radio resources providing a service change from one of the UTRA radio access modes to the other (UTRA-FDD and UTRA-TDD), this is regarded as handover. Particular emphasis has been placed on the description of requirements for service continuity within UTRAN and between U
33、TRAN and GERAN. It is a key requirement to allow for dual or multi-mode terminals to handover traffic from UTRAN to GERAN and vice versa. This document describes the service requirements for intra- and inter- system handover. The following subject areas are within the scope of these service requirem
34、ents: - User perceived performance that may be influenced by handover; - Operational requirements relating to handover; - Security requirements. The requirements set forth in this document are service requirements, in that they fulfil the following: - The requirements are independent of the implemen
35、tation of the UTRAN; - The extent to which the requirements are met are in principle verifiable using observables that are not internal to the UTRAN. 1.1 Situations in which Service Requirements apply The service requirements in this document are as far as possible independent of the implementation.
36、 They therefore apply to situations where handover would occur regardless of how the radio access network is implemented. Situations envisaged are: - Handover within UTRAN due to change of radio resource caused by UE movement between areas covered by different transmitters; - Handover within UTRAN d
37、ue to change of UTRA radio access mode; - Handover due to change of radio system. It is possible that handover (i.e. change of radio resource) will occur in other situations, for example the technical implementation of the UTRAN may necessitate it or O - The service requirements for handover occurri
38、ng in situations such as O the source and destination network addresses need to be specified in each message. Transferred information cannot be guaranteed of ordered delivery. Connectionless bearer services lifetime is reduced to the transport of one message. GERAN coverage: an area where mobile cel
39、lular services are provided by a GERAN in accordance with GERAN specifications. UTRAN coverage: an area where mobile cellular services are provided by a UTRAN in accordance with UTRAN specifications. Multi mode terminal: UE that can obtain service from at least one UTRA radio access mode, and one or
40、 more different systems such as GERAN bands or possibly other radio systems such IMT-2000 family members. Handover: The process in which the radio access network changes the radio transmitters or radio access mode or radio system used to provide the bearer services, while maintaining a defined beare
41、r service QoS. Intra PLMN handover: Handover within the same network, i.e. having the same MCC-MNC regardless of radio access system. Note: this includes the case of UTRAN GERAN handover where MCC-MNC are the same in both cases. Inter PLMN handover: Handover between different PLMNs, i.e. having diff
42、erent MCC-MNC. Inter system handover: Handover between networks using different radio systems , e.g. UTRAN GERAN. UTRA Radio access mode: the selected UTRA radio access mode i.e. UTRA-FDD; UTRA-TDD. Radio system: the selected 2ndor 3rdgeneration radio access technology. ETSI ETSI TS 122 129 V15.0.0
43、(2018-07)83GPP TS 22.129 version 15.0.0 Release 15Service Continuity: The means for maintaining active services during changes in the coverage areas or their characteristics without, as far as possible, the user noticing. Note that Service Continuity can be achieved by handover, cell re-selection or
44、 other mechanisms. 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: UE User equipment 4 General Principles governing service continuity 4.0 General Principles for service continuity The general principles for service continuity described in this specific
45、ation refer to service continuity within the UTRAN, within the GERAN and between the UTRAN and GERAN. As a principle, the requirements on service continuity characteristics should be according to the target network on which the service is maintained. Service requirements for seamless mobility betwee
46、n multiple heterogeneous access systems beyond only UTRAN and GERAN are contained within TS 22.278 2. 4.1 Service Continuity Scenarios Service continuity shall support the following scenarios: 1. Continuity of active CS services when moving within UTRAN, within GERAN and between UTRAN and GERAN cove
47、rage areas. 2. Continuity of active GPRS sessions when moving within UTRAN, within GERAN and between UTRAN and GERAN coverage areas. 3. Continuity of active IM Services when moving within UTRAN, within GERAN and between UTRAN and GERAN coverage areas (that support those IM services). Service continu
48、ity is not applicable for any call or session using resources specific to the source domain that cannot be maintained using resources in the target domain. 4.2 Service Continuity requirements For all scenarios, the specifications shall cover both service continuity within the same PLMN (intra-PLMN)
49、and between PLMNs (inter-PLMN), including the case where the PLMNs involved are operated by different network operators. It shall be possible for a user to roam between the different parts of a shared network without requiring any user intervention. The user experience while roaming in a shared network shall be comparable to the user experience while roaming in a non-shared network. 4.2.1 Service continuity for CS The scenario numbers in this table refer to the scenarios in section 4.1. To CS services UTRAN GERAN From CS services UTRAN Yes - Scenario 1 Yes - Scenario 1 GER
