1、 TIA-41.328-E-1E (Addendum to TIA-41.328-E) August 2012Mobile Application Part (MAP) - Voice Feature Scenarios: Mobile Access Hunting ANSI/TIA-41.328-E-1E-2012 APPROVED: AUGUST 13, 2012 NOTICE TIA Engineering Standards and Publications are designed to serve the public interest through eliminating mi
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6、om Project No. SP-3-3590.328-RV5-AD1-E-A, formulated under the cognizance of the TIA TR-45 Mobile and Personal Communications Systems Standards, TR-45.8 Subcommittee on Core Networks- Mobile and Personal Communications Standards). Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION Standards and Te
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22、OING NEGATION OF DAMAGES IS A FUNDAMENTAL ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. REVISION HISTORYRevision Date RemarksX.S0004-328-E v1.0 January 2007 Initial publication.X.S0004-328-E v2.0 January 2009 Enhancement to sect
23、ion 2.6 based on Miscellaneous Enhancements 10.0.X.S0004-328-E v2.0123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960328-1 INTRODUCTION1 INTRODUCTIONUnless otherwise noted, the scenarios in this section depict features operating individual
24、ly; i.e.,feature interactions are not considered unless specifically noted.The scenarios in this part do not include a complete listing of operation parameters, either in thefigures or in the accompanying text descriptions. Parameters are included where they aredeemed necessary to improve the unders
25、tanding of the scenario. For a complete description ofthe parameters associated with each operation, refer to Parts 540 and 550.2 Mobile Access HuntingThis section depicts the interactions between network entities in various situations related toautomatic roaming and Mobile Access Hunting (MAH). The
26、se scenarios are for illustrativepurposes only.2.1 MAH Membership Activation or De-ActivationThe information flows required for the activation or de-activation of membership in themembers default or specified MAH group by an authorized MS are described in Part 311Section 2.1.2.2 MAH Ordering Change
27、RequestThe information flows required for a request to change the members order in its default orspecified MAH group, by an authorized MS, are described in Part 311 Section 2.1.2.3 MAH InvocationThis scenario describes the invocation of MAH. The MAH group is comprised of threemembers: one member is
28、a PSTN DN, MAH-DN1; the other two members are MSs, served bythe same HLR and currently served by the same MSC. These two MSs will be referred to asMIN1 and MIN2 throughout this part.X.S0004-328-E v2.0Mobile Access Hunting1234567891011121314151617181920212223242526272829303132333435363738394041424344
29、45464748495051525354555657585960328-2a. A call origination and the dialed MS address digits (i.e., directory number) are receivedby the Originating MSC.b. The Originating MSC sends a LOCREQ to the MSs HLR and includes the BillingIDand Digits (Dialed) parameters.Figure 1 MAH Invocationabcdefghijklmno
30、pqrstuvwxyMSC VLR HLR MSC Serving System LRT Call is not completedstart call progress treatment routreq TLDN1 call origination Originating System LOCREQ BILLID, DGTSDIAL locreq GRPINFO, NATIME, REDIND, TERMLIST, TERMTRIG call setup to MAH-DN1 release call to MAH-DN1 TRANUMREQ BILLID, GRPINFO, PILOT,
31、 REDREASON, TRANSCAP ROUTREQ MIN1, LegInfo1 ROUTREQ MIN1, LegInfo1 routreq TLDN1 tranumreq GRPINFO, NATIME, REDIND, TERMLIST, TERMTRIG Call is not completedROUTREQ MIN2, LegInfo2 ROUTREQ MIN2, LegInfo2 routreq TLDN2 routreq TLDN2 tranumreq GRPINFO, NATIME, REDIND, TERMLIST, TERMTRIG timeout MAHT RRT
32、 RRT TTNRT MAHT TLDNAT MAHT call setup to TLDN2 call answered byTLDN2 TTNRT RRT RRT TRANUMREQ BILLID, GRPINFO, PILOT, REDREASON, TRANSCAP release call to TLDN1 call setup to TLDN1 X.S0004-328-E v2.0123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555
33、657585960328-3 Mobile Access Huntingc. The HLR recognizes the called number as an MAH Pilot DN. The HLR sends alocreq to the Originating MSC, containing the first MAH group members routinginformation in the form of the TerminationList parameter, along with an indication ofthe reason for extending th
34、e incoming call (i.e., for MAH) in theDMH_RedirectionIndicator parameter. d. On receipt of the locreq, the Originating MSC may start call progress treatment tothe calling party, if it has not already done so.e. The Originating MSC provides call treatment as indicated in the locreq. In this case,the
35、treatment is to attempt to establish a call to the first DN in the MAH group,MAHDN1. For each call attempt, the Originating MSC monitors call progress; basedon this information, it applies appropriate call progress treatment to the calling party.f. The call to MAH-DN1 is not completed due to busy, n
36、o answer time-out or othercauses.g. The Originating MSC releases the call to MAH-DN1.h. Based on the instructions in the TerminationTriggers parameter received in Step-c, theOriginating MSC sends a TRANUMREQ to the HLR, containing the BillingIDassociated with the original MAH call (step b) and the R
37、edirectionReason parameter.Additional Parameters Usage TypeGRPINFO Information associated with the MAH Pilot DN. ONATIME Indication of how long, in seconds, the Origi-nating MSC should wait before applying noanswer treatment. Include to override Origi-nating MSC default.OTERMTRIG Indicates active te
38、rmination trigger points formembers not having TerminationTriggersinside the TerminationList.OAdditional Parameters Usage TypeBILLID May be used by HLR to relate the transfer request to the original MAH call invocation.RPILOT May be used by the HLR to relate the transfer request to the original MAH
39、invocation.RGRPINFO May be used by HLR for further processing of the MAH call. Include if available.OTRANSCAP Indicates the Originating MSCs transaction capability at the current time. (Allow routing information.)OX.S0004-328-E v2.0Mobile Access Hunting12345678910111213141516171819202122232425262728
40、2930313233343536373839404142434445464748495051525354555657585960328-4i. The HLR may use the BillingID or the PilotNumber and LegInformation to relate thetransfer request to the original MAH call. It sends a ROUTREQ to the VLR where theMS corresponding to the next entry in the MAH group list is regis
41、tered, that of MIN1.j. The VLR forwards the ROUTREQ to the current Serving MSC.k. In reaction to the ROUTREQ, the Serving MSC checks its internal data structures anddetermines that the MS is currently idle. The Serving MSC allocates TLDN1 andreturns this information to the VLR in a routreq.l. The VL
42、R sends the routreq to the HLR.m. The HLR sends a tranumreq to the Originating MSC, including TLDN1 in theTerminationList parameter, along with an indication of the reason for extending theincoming call (i.e., for MAH) in the DMH_RedirectionIndicator parameter.n. The Originating MSC provides call tr
43、eatment as indicated in the tranumreq. In thiscase, the treatment is to attempt to establish a call to TLDN1.o. The call to TLDN1 is not completed due to busy, no answer time-out or other causes.p. The Originating MSC releases the call to TLDN1.q. Based on the instructions in the TerminationTriggers
44、 parameter received in Step-c, theOriginating MSC sends a TRANUMREQ to the HLR, containing the BillingIDassociated with the original MAH call (step b) and the RedirectionReason parameter.Additional Parameters Usage TypeLegInfo1: MAH parameters for call leg to MIN1:AlertCode Include for distinctive a
45、lerting of MS. OLegInformation Used for HLR identification of call leg to MIN1. Include at HLR option.OOneTimeFeature-Indicator Modify feature processing for the duration of this call leg.OTerminationTriggers Include if termination trigger points are active for call leg.OAdditional Parameters Usage
46、TypeGRPINFO See description in Step-c. ONATIME See description in Step-c. OTERMTRIG See description in Step-c. RAdditional Parameters Usage TypeBILLID See description in Step-h. RPILOT See description in Step-h. RGRPINFO See description in Step-h. OTRANSCAP See description in Step-h. OX.S0004-328-E
47、v2.0123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960328-5 Mobile Access Huntingr. The HLR may use the BillingID or PilotNumber and GroupInformation to relate thetransfer request to the original MAH call. It sends a ROUTREQ to the VLR whe
48、re theMS corresponding to the next entry in the MAH group list is registered, that of MIN2.s. s. The VLR forwards the ROUTREQ to the current Serving MSC.t. In reaction to the ROUTREQ, the Serving MSC checks its internal data structures anddetermines that the MS is currently idle. The Serving MSC all
49、ocates TLDN2 andreturns this information to the VLR in a routreq.u. The VLR sends the routreq to the HLR.v. The HLR sends a tranumreq to the Originating MSC, including TLDN2 in theTerminationList parameter, along with an indication of the reason for extending theincoming call (i.e., for MAH) in the DMH_RedirectionIndicator parameter.w. The Originating MSC provides call treatment as indicated in the tranumreq. case,the treatment is to attempt to establish a call to TLDN2.x. The party at TLDN2 answers. The Originating MSC connects the calli
