ITU-T Q 4004 2-2016 Communication diversion using IP multimedia core network subsystem Conformance testing C Part 2 Network side Test suite structure and test purposes (Study Group.pdf

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1、 I n t e r n a t i o n a l T e l e c o m m u n i c a t i o n U n i o n ITU-T Q.4004.2 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (02/2016) SERIES Q: SWITCHING AND SIGNALLING Testing specifications Testing specifications for SIP-IMS Communication diversion using IP multimedia core network subsys

2、tem; Conformance testing Part 2: Network side; Test suite structure and test purposes Recommendation ITU-T Q.4004.2 ITU-T Q-SERIES RECOMMENDATIONS SWITCHING AND SIGNALLING SIGNALLING IN THE INTERNATIONAL MANUAL SERVICE Q.1Q.3 INTERNATIONAL AUTOMATIC AND SEMI-AUTOMATIC WORKING Q.4Q.59 FUNCTIONS AND I

3、NFORMATION FLOWS FOR SERVICES IN THE ISDN Q.60Q.99 CLAUSES APPLICABLE TO ITU-T STANDARD SYSTEMS Q.100Q.119 SPECIFICATIONS OF SIGNALLING SYSTEMS No. 4, 5, 6, R1 AND R2 Q.120Q.499 DIGITAL EXCHANGES Q.500Q.599 INTERWORKING OF SIGNALLING SYSTEMS Q.600Q.699 SPECIFICATIONS OF SIGNALLING SYSTEM No. 7 Q.700

4、Q.799 Q3 INTERFACE Q.800Q.849 DIGITAL SUBSCRIBER SIGNALLING SYSTEM No. 1 Q.850Q.999 PUBLIC LAND MOBILE NETWORK Q.1000Q.1099 INTERWORKING WITH SATELLITE MOBILE SYSTEMS Q.1100Q.1199 INTELLIGENT NETWORK Q.1200Q.1699 SIGNALLING REQUIREMENTS AND PROTOCOLS FOR IMT-2000 Q.1700Q.1799 SPECIFICATIONS OF SIGNA

5、LLING RELATED TO BEARER INDEPENDENT CALL CONTROL (BICC) Q.1900Q.1999 BROADBAND ISDN Q.2000Q.2999 SIGNALLING REQUIREMENTS AND PROTOCOLS FOR THE NGN Q.3000Q.3899 TESTING SPECIFICATIONS Q.3900Q.4099 Testing specifications for next generation networks Q.3900Q.3999 Testing specifications for SIP-IMS Q.40

6、00Q.4039 Testing specifications for Cloud computing Q.4040Q.4059 For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-T Q.4004.2 (02/2016) i Recommendation ITU-T Q.4004.2 Communication diversion using IP multimedia core network subsystem; Conformance testing Part 2: Netwo

7、rk side; Test suite structure and test purposes Summary Recommendation ITU-T Q.4004.2 v.1 (2016) is part 2 of the testing specifications for communications diversion (CDIV) service implemented on IP multimedia subsystem (IMS) basis on the network side. The Recommendation specifies the test suite str

8、ucture and test purposes (TSS Conformance testing Part 2: Network side; Test suite structure and test purposes 1 Scope The present Recommendation specifies the test suite structure and test purposes (TSS Part 2: “Test suite structure and test purposes; Network side (TSS Part 3: “Test suite structure

9、 and test purposes; User side (TSS users of this Recommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is regularly published. The refere

10、nce to a document within this Recommendation does not give it, as a stand-alone document, the status of a Recommendation. ITU-T Q.3620 v.1 Recommendation ITU-T Q.3620 v.1 (2016), Communication diversion (CDIV) using IP multimedia core network subsystem Protocol specification. ITU-T Q.4004.1 v.1 Reco

11、mmendation ITU-T Q.4004.1 v.1 (2016), Communication diversion using IP multimedia core network subsystem; Conformance testing Part 1: Network side and user side; Protocol implementation conformance statement. ITU-T X.290 Recommendation ITU-T X.290 (1995), OSI conformance testing methodology and fram

12、ework for protocol Recommendations for ITU-T applications General concepts. IETF RFC 4244 IETF RFC 4244 (2005), An Extension to the Session Initiation Protocol (SIP) for Request History Information. 3 Definitions For the purposes of this Recommendation, the terms and definitions given in ITU-T Q.362

13、0 v.1 and the following apply: 3.1 abstract test suite (ATS): Refer to ITU-T X.290. 3.2 implementation under test (IUT): Refer to ITU-T X.290. 3.3 pics proforma: Refer to ITU-T X.290. 2 Rec. ITU-T Q.4004.2 (02/2016) 3.4 point of control and observation: Refer to ITU-T X.290. 3.5 protocol implementat

14、ion conformance statement (PICS): Refer to ITU-T X.290. 3.6 system under test (SUT): Refer to ITU-T X.290. 3.7 test purpose (TP): Refer to ITU-T X.290. 4 Abbreviations and acronyms This Recommendation uses the following abbreviations and acronyms: Gm Reference Point between a UE and a P-CSCF ISC IP

15、Multimedia Subsystem Service Control Mg Reference Point between an MGCF and a CSCF Mw Reference Point between a CSCF and another CSCF Mx Reference Point between a CSCF/BGCF and IBCF NDUB Network Determined User Busy NNI Network - Network Interface TSS Test Suite Structure UDUB User Determined User B

16、usy 5 Test suite structure (TSS) Table 1 Test suite structure Netw ASdivertingUser/DivProcedures CDIV_N01_xxx ASdivertingUser/NotOrigUser CDIV_N02_xxx ASdivertingUser/NotTermUser CDIV_N03_xxx ASdivertingUser/NotDivUser CDIV_N04_xxx ASdiverted-to CDIV_N05_xxx Interaction TIP CDIV_N06_xxx TIR CDIV_N07

17、_xxx OIR CDIV_N08_xxx ACR-CB CDIV_N09_xxx ECT CDIV_N10_xxx 5.1 Configuration The scope of this Recommendation is to test the signalling and procedural aspects of the stage 3 requirements as described in ITU-T Q.3620 v.1. The stage 3 description respects the requirements to several network entities a

18、nd also to requirements regarding end devices. Therefore several interfaces (reference points) are addressed to satisfy the test of the different entities. In order to test the appropriate entities the configurations below are applicable: Testing of the Application Server: This entity is responsible

19、 for performing the service. Hence the ISC interface is the appropriate access point.as shown in Figure 1. Rec. ITU-T Q.4004.2 (02/2016) 3 Figure 1 Applicable interface to test AS functionalities If the ISC interface is not accessible it is also applicable to perform the test of the AS using any NNI

20、 (Mw, Mg, Mx) interface (see Figure 2). In case only the Gm interface is accessible this shall be used instead. In this case, be aware that the verification of several requirements is impeded. Figure 2 Applicable interfaces to test using the (generic) NNI interface 6 Test purposes (TP) 6.1 Introduct

21、ion 6.1.1 TP naming convention Test purposes (TPs) are numbered, starting at 001, within each group. Groups are organized according to the test suite structure (TSS). Additional references are added to identify the actual test suite and whether it applies to the network or the user (see Figure 3). I

22、dentifier: _ = supplementary service: e.g. “CDIV“ = type of IUT: U User N Network yyy service = group 2 digit field representing group reference according to TSS = sequential number (001-999) Figure 3 TP identifier naming convention scheme 6.1.2 Test strategy As the base standard ITU-T Q.3620 v.1 co

23、ntains no explicit requirements for testing, the TPs were generated as a result of an analysis of the base standard and the protocol implementation conformance statement (PICS) specification ITU-T Q.4004.1 v.1. 4 Rec. ITU-T Q.4004.2 (02/2016) 6.2 Signalling requirements 6.2.1 Actions at the AS of th

24、e diverting user 6.2.1.1 Diversion procedures TSS Netw/ASdivertingUser/DivProcedures TP CDIV_N01_001 Reference ITU-T Q.3620 v.1 4.5.2.6.1 Selection expression PICS 1/2 Test purpose Served user has activated CFB, maximum number of diversion exceeded. Ensure that the 486 (Busy here) final response wit

25、h a Warning header is sent to the original user if the served user has activated the CFB simulation service and the served user is busy and if the maximum number of diversions is exceeded. SIP header values: INVITE: sip:SIP#n SIP/2.0 History-Info: ;index=1, Build additional entries with non signifi

26、cant uri values ;index=1.n.1 Warning: is present NOTE: For each redirection a history-entry is added the History-Info header and the relevant index is incremented according the rules described in clause 4.5.2.6.2.3 ITU-T Q.3620 v.1. In short: each redirection is represented by a “.“ (dot) in the lat

27、est history-entry. Comments: SIP#1 AS SIP#n SIP#n+1 INVITE 1 INVITE 1 486 Busy Here 486 (Busy here) ACK ACK TSS Netw/ASdivertingUser/DivProcedures TP CDIV_N01_002 Reference ITU-T Q.3620 v.1 4.5.2.6.1 Selection expression PICS 1/3 Test purpose Served user has activated CFNR, maximum number of diversi

28、on exceeded. Ensure that the 480 (Temporarily unavailable) final response with a Warning header is sent to the original user if the served user does not answer the communication request and if the maximum number of diversions is exceeded. SIP header values: INVITE: sip:SIP#n SIP/2.0 History-Info: ;

29、index=1, Build additional entries with non significant uri values ;index=1.n.1 Warning: is present NOTE: For each redirection a history-entry is added to the History-Info header and the relevant index is incremented according the rules described in clause 4.5.2.6.2.3 ITU-T Q.3620 v.1. In short: each

30、 redirection is represented by a “dot“ in the latest history-entry. Comments: SIP#1 AS SIP#n SIP#n+1 INVITE INVITE 180 Ringing 180 Ringing No reply timer expires 480 (Temporarily unavailable) CANCEL ACK 200 OK CANCEL 487 Request Terminated ACK Rec. ITU-T Q.4004.2 (02/2016) 5 TSS Netw/ASdivertingUser

31、/DivProcedures TP CDIV_N01_003 Reference ITU-T Q.3620 v.1 4.5.2.6.1 Selection expression PICS 1/1 Test purpose Served user has activated CFU, maximum number of diversion exceeded. Ensure that the 480 (Temporarily unavailable) final response with a Warning header is sent to the original user if the s

32、erved user has activated the CFU simulation service and if the maximum number of diversions is exceeded. SIP header values: INVITE: sip:SIP#n SIP/2.0 History-Info: ;index=1, Build additional entries with non significant uri values ;index=1.n.1 Warning: is present NOTE: For each redirection a histor

33、y-entry is added the History-Info header and the relevant index is incremented according the rules described in clause 4.5.2.6.2.3 ITU-T Q.3620 v.1. In short: each redirection is represented by a “dot“ in the latest history-entry. Comments: SIP#1 AS SIP#n SIP#n+1 INVITE 480 (Temporarily unavailable)

34、 ACK TSS Netw/ASdivertingUser/DivProcedures TP CDIV_N01_004 Reference ITU-T Q.3620 v.1 4.5.2.6.1 Selection expression PICS 1/4 OR PICS 1/5 Test purpose Served user has activated CD, maximum number of diversion exceeded. Ensure that the 480 (Temporarily unavailable) final response with a Warning head

35、er is sent to the original user if the served user has activated the CD simulation service and if the maximum number of diversions is exceeded. SIP header values: INVITE: sip:SIP#n SIP/2.0 History-Info: ;index=1, Build additional entries with non significant uri values ;index=1.n.1 Warning: is pres

36、ent NOTE: For each redirection a history-entry is added the History-Info header and the relevant index is incremented according the rules described in clause 4.5.2.6.2.3 ITU-T Q.3620 v.1. In short: each redirection is represented by a “dot“ in the latest history-entry. Comments: SIP#1 AS SIP#n SIP#n

37、+1 INVITE INVITE 180 Ringing 180 Ringing 302 Moved Temporarily ACK 480 (Temporarily unavailable) ACK 6 Rec. ITU-T Q.4004.2 (02/2016) 6.2.1.2 Notification procedure of the originating terminating and diverting user 6.2.1.2.1 Originating user TSS Netw/ASdivertingUser/NotOrigUser TP CDIV_N02_001 Refere

38、nce ITU-T Q.3620 v.1 4.5.2.6.4 Selection expression PICS 3/3 AND (PICS 1/1 OR PICS1/2 OR PICS 1/6 OR PICS 1/7) Test purpose Communication forwarding using CFU or using CFB NDUB, CFNL or CFNRc with applying diversion condition; originating user is not notified. When communication diversion occurs and

39、 if the notification procedures of the originating user is supported then no 181 (Call Is Being Forwarded) response shall be sent towards the originating user if the served users subscription option is set to: Originating user receives notification that his communication has been diverted (forwarded

40、 or deflected) = no. Subscription options: Originating user receives notification that his communication has been diverted (forwarded or deflected) = no Comments: SIP#1 AS SIP#2 SIP#3 INVITE INVITE TSS Netw/ASdivertingUser/NotOrigUser TP CDIV_N02_002 Reference ITU-T Q.3620 v.1 4.5.2.6.4 Selection ex

41、pression PICS 3/3 AND PICS 3/4 AND PICS 3/5 AND (PICS 1/1 OR PICS1/2 OR PICS 1/6 OR PICS 1/7) Test purpose Communication forwarding using CFU or using CFB NDUB, CFNL or CFNRc with applying diversion condition; originating user is notified. When communication diversion occurs and if the notification

42、procedures of the originating user is supported then a 181 (Call Is Being Forwarded) response shall be sent towards the originating user containing: a P-Asserted-Identity header with the URI of the served user and a History-Info header including a first entry with the hi-targeted-to-URI of the serve

43、d, index = 1 and including a second entry with the hi-targeted-to-URI of the diverted-to user, cause = CAU_VA and escaped Privacy header set to history, index = 1.1 Subscription options: Originating user receives notification that his communication has been diverted (forwarded or deflected) = yes Se

44、rved user allows the presentation of diverted to URI to originating user in diversion notification = yes Served user allows the presentation of his/her URI to originating user in diversion notification = yes SIP header values: 181 Call is Being Forwarded: P-Asserted-Identity: SIP#2 History-Info: ;in

45、dex=1, ;index=1.1 Comments: SIP#1 AS SIP#2 SIP#3 INVITE 181 Call is Being Forwarded INVITE Rec. ITU-T Q.4004.2 (02/2016) 7 TSS Netw/ASdivertingUser/NotOrigUser TP CDIV_N02_003 Reference ITU-T Q.3620 v.1 4.5.2.6.4 Selection expression PICS 3/3 AND (PICS 3/5 OR PICS 4/3) AND PICS 3/4 AND (PICS 1/1 OR

46、PICS1/2 OR PICS 1/6 OR PICS 1/7) Test purpose Communication forwarding using CFU or using CFB NDUB, CFNL or CFNRc with applying diversion condition; originating user is notified. When communication diversion occurs and if the notification procedures of the originating user is supported then a 181 (C

47、all Is Being Forwarded) response shall be sent towards the originating user containing: a P-Asserted-Identity header with the URI of the served user and a Privacy header set to “id“ and a History-Info header including a first entry with the hi-targeted-to-URI of the served user with a Privacy header

48、 set to “history“, index = 1 and including a second entry with the hi-targeted-to-URI of the diverted-to user with a Privacy header set to “history“, cause = CAU_VA, index = 1.1 Subscription options: Originating user receives notification that his communication has been diverted (forwarded or deflec

49、ted) = yes Served user allows the presentation of diverted to URI to originating user in diversion notification = no Served user allows the presentation of his/her URI to originating user in diversion notification = no OR Served user has subscribed to TIR in permanent mode SIP header values: 181 Call is Being Forwarded: P-Asserted-Identity: SIP#2 Pr