Roaming Report

8/8/2019 Roaming Report

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CNG TY DCH V VIN THNG

TRUNG TM PHT TRIN DCH V

DchDch vv ChuynChuyn VngVng QucQuc TT && GiiGii phpphp lililulu lnglng roamingroaming

Ngi trnh by: L ng LinhNgi hng dn : Nguyn Kim Chi

Ng Din Hy


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NI DUNG

9/23/2010 Trung tm Pht trin dch v

Dch v chuyn vng quc t

Qui trnh khai thc dch v

Gii php li lu lng roaming (Steering ofroaming SoR)


3/41

I.1-Dch v chuyn vng quc t


Dch v chuyn vng quc to Dch v chuyn vng quc t l dch v chuyn vng gia hai nh khai

thc ( thuc hai quc gia, vng lnh th khc nhau ) vi nhau thubao ca nh khai thc ny s dng c dch v ca nh khai thc khc.

S lng i tc

o Hin ti Vinaphone trin khai dch v chuyn vng quc t ti 87quc gia trn th gii vi hn 203 nh mng ti cc quc gia ny.

Mi quan h vi cc i tc roaming:o i tc trung gian thanh khon

o i tc bo hiu

o i tc Hub

InternationalRoaming

Agreement

Inter-PLMNconnection

Billing

Testing


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Inter-PLMNs connection


VPLMN HPLMN

Roaming interconnection

CCS7/SCCP

Internationalvoice network

Inter-PLMNIP backbone

a

b

c

Roaming inGSM network

requires (a) and(b)

Roaming inGPRS network

requires (a)and (c)

Roaming in 3Gnetwork

requires (a)(b)and (c)


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Agreement


Agreement: Bilateral agreement (Tha thun song phng hay thathun CVQT trc tip gia 2 PLMN)

Indrect relationship (Tha thun thng qua nh thanh khonclearing house, roaming broker hoc Hub SMS)

VNP Partner A

VNPPartner A/

Clearing House

PLMN B

PLM

N C

PLMN n

Direct relationship

Through a thirdparty


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Agreement


M

i quan h vi cc i tc Hub: i tc SMS Hub:

Gii php SMS Hubbing to iu kin cho VNP cung cpn khch hng dch v SMS quc t ti nhiu nh mngtrn th gii. u im ca gii php l VNP ch cn k kttha thun vi i tc Hub, mi tha thun vi cc nhmng khc s do i tc Hub m nhn.


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8/41

Agreement


M

i quan h vi cc i tc thanh khon (ClearingHouse): i tc thanh khon hin nay ca VNP:

M hnh thanh khon thc t:

TAP: Transferred Account Procedure-Phng thc trao i d

liu cc c nh ngha bi GSM

A. Hin nay c TAPversion 3.11.

VPLMN HPLMNCLEARING

HOUSECLEARING

HOUSE

TAP/RAP files TAP/RAP files


9/41

Billing & Settlement


VISITEDNETWORK

HOMENETWORK

INVOICE

CDR/ UsageDetails

Inter er atorSettlement

Billing process

Roamer


10/41

Billing & SettlementTAP/RAP-Return&Reject process


VISITED NETWORKBilling system

HOME NETWORK Billingsystem

TAP for at files

Billingprocess

Roamer

MSC

SGSN

GGSN

CED

TAP filesprocessing

Retailbilling

TAP filesgenerating

Finance FinanceINVOICE

TAP filesvalidation

RAP filesprocessing

RAP format files

ResubmissionErrorsoccur

Missing files Fatal errors

Severe errors

TAP (TranferredAccount Procedure) th tc truyn d liu cc theokhuyn ngh ca Hip hi GSM. TAP3 (version 3.11) c trinkhai t ngy 1/5/2008RAP (ReturnedAccount Procedure) th tc gi li d liu cc theokhuyn ngh ca Hip hi GSM. RAP version 1.4 c trin khai t

ngy 1/5/2008. RAP version1.5 d kin s c trin khai vo ngy1/5/2011.


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Billing & SettlementData interchange


NRTRDE: Near Real Time Roaming Data Exchange Kim sot gian ln (Roaming Fraud) Gi d liu roaming theo thi gian thc

Khng nht thit gi file cc, gi nh k 4 ting/ 1 ln

nhm kim sotF

raud. Hn cht trin khai bi tt c cc thnh vin GSMA vongy 10/1/2008


12/41

Testing


Th nghim dch v GSM roaming (Voice/fax)

Location update/ Cancel location test Operator-determined barring (ODB) all calls

Roamer-to-roamer call in a visited network

HLRGSMC

VLR

MSC BSC

Inter-PLMNlinks

SCCP/ISUP

PLMN A PLMN BTP1-A

TP2-ATP1-B TP2-B

Test MS1 Test MS2

Location UpdatePretest conditions

TheM

S1-A is equipped with the SIM

from PLM

N-A. The SIM

subscription datais set to include basic and supplementary services. DeleteMS1-A data from PLMN-B VLR, if any exists. Set network selection in manual mode onMS1-A

Test actions Power ON mobile.

Select network PLM

N B.VerificationMS1-A indicates a successful selection of PLMN-B. A new record forMS1-A with the identical basic and supplementary services

shall be created in PLMN-B VLR

Cancel LocationPretest conditions There exists a record ofMS1-A in the PLMN-B VLR as a result of a previoussuccessful update location operation.

Actions Request PLMN-A tester to delete MS1-A subscription in the HLR, using appropriateMMI

command.Verification Check PLMN-B VLR forMS1-A record. The record shall be erased from the VLR asa result of the cancel location operation.

Operator-Determined BarringPretest

There exists a record ofMS1-A in the PLMN-B VLR as a result of a conditions previoussuccessful update location operation. The ODB data confirms that the roamer is allowed tomake outgoing calls and receive incoming calls while roaming.

Test actionsRequest PLMN-A tester to activate ODB to bar all outgoing and incoming call using anappropriateMMI command.

VerificationVerify that the PLMN-B VLR data contains modified ODB information forMS1-AAn attempt to establish an outgoing call using MS1-A shall fail.An attempt to call MS1-A shall fail.MS1-A shall be able to send and receive SMS.

Roamer-to-Roamer callPretest

Both roamers MS1-A and MS2-A have completed the update location conditionsprocedure successfully.

Test actionsMS1-A initiates a call with the called party as MS2-A. Hold the call for 1 minute or more.

VerificationVerify that the call successfully gets established.Assess the voice quality of service and use of echo cancellation. Optionally, provide roaming number (PRN) procedure and ISUP call legs can be viewedand verified using a protocol analyzer. The transaction and call trace is used to furtherdiagnose the reason in case of call failure


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Testing


Roamer-terminated calls The VLR has no record of the roamer

Roamer has performed IMSI detach

Supplemental services: USSD

GSM SMS

PretestThe HLR shows thatMS1-A has roamed in PLMN-B. MS1-A hasconditions previously registered in PLMN-B but there is no data in the VLRrelated toMS1-A (e.g., IMSI purge because of inactivity for an extendedperiod of time). The VLR has no location updated since the MS1-A record inthe VLR was removed.

Test actionsPSTN phone TP-B callsMS1-A.Verification

There are two possible scenarios in this case:The call is successful. In this case, the VLR is able to recover by using thesend parameter procedure with the HLR. Check the speech quality and echo.

The call fails within 30 seconds with an appropriate announcement.In both cases the result is successful.

Pretest conditions

Ensure that theM

S1-A is detached in the VLR.Test actionsTP-B attempts to call MS1-A.

VerificationThe call fails to terminate; an appropriateannouncement is fed by the PLMN-A GMSC to thecalling subscriber, i.e., TP-B.

Pretest conditionsMS1-A andMS2-A are successfully registered in a visitednetwork, i.e., PLMN-B.

Test actions Switch OFFMS2-A. Edit an SMS onMS1-A and send it to MS2-A. Switch ON MS2-A.

VerificationVerify that MS2-A receives

Pretest conditions The HPLMN has implemented at least one USSDapplication and the tester in the VPLMN has informationon the access code for the service and its behavior.

Test actionsMS1-A invokes the USSD application by typing theUSSD string and sending it, e.g., 1112345678# Send.

Verification The test is successful if the HPLMN returns with theright response expected from the USSD application.


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Testing


HLR

Inter-PLMN

backbonenetwork

DatanetworkInternet

Local

DNS SGSN-B

BSC/PSU

GGSN

DHCP/RADIUS

LocalDNS

SGSN-A

GGSN

DHCP/RADIUS

PLMNA PLMN B

Intra-PLMN

Backbonenetwork

Data network

Internet

Inter-PLMN backbone

Network/GRX

Test

MS1-A

Th nghim dch v GPRS roaming


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Testing


Th nghim dch v GPRS roaming GPRS attach GPRS SMS test

GPRS operator control of service

Location cancellation for a roamer Operator-determined barring-PDP context activation

GPRS PDP context test

Pretest conditionsNo valid MM contexts exist in the HLR for the MS1-A.

Test actions Switch ON MS1-A in PLMN-B and perform GPRS

attach.Verification

In the response GPRS attach accepted is received.Pretest conditionsMS1-A is GPRS attached with SGSN-B, and PDPcontext is activated.

Test actions The HPLMN tester deletes the MS1-A subscription fromthe PLMN-A HLR, using a man-machine interface.

VerificationVerify that the SGSN-B and GGSN-A/GGSN-B recordsforMS1-A have been erased and PDP context has been

deactivated.

Pretest conditions

MS1-A is GPRS attached only to PLMN-B. ThePLMN-A tester activates ODB forMS-initiated PDPcontext activation forMS1-A.

Test actionsMS1-A attempts to transmit an SMS toMS2-A.MS1-A attempts PDP context activation.

VerificationMS2-A receives SMS with no error. The SGSN-Brecord forMS1-A contains ODB information and noPDP context activation.

Pretest conditionsMO-/MT-SMS is provisioned in the HLRsubscription, including GPRS subscription data forbothMS1-A and MS2-A. BothMS1-A andMS2-Aare OFF.

Test actions Switch ON MS1-A and perform GPRS attach only. Create an SMS and send it to MS2-A. Switch ON MS2-A and perform GPRS attach only.

VerificationMS2-A receives SMS successfully with no error.


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Testing


SGSN

DNS

GGSN

PDP context testing Intranet accessusinghomeGGSN

1. ActivePDP context testing(APN = Intranet)

2. Query (intranet)

3.Response

Intranet.MNCxxx.MCCyyy.gprs

4.CreatePDP context

(APN= intranet.MNCxxx.MCCyyy.gprs)

PLMN-B

(MCC=mmm, MNC= nnn)

PLMN-A(MCC=xxx, MNC= yyy)

Pretest conditionsMS1-Ahas subscribed to the APN Intranet. The VPLMN not

allowed flag is set for the APN.MS1-A is GPRS attached in PLMN-B.Test actions

MS1-A performs an activate PDP context request. A requestto download a specified file is made, using a supported transportprotocol (HTTP, FTP, or WAP).Verification

The file transfer completes successfully with no errors.

PDP context testing Internet/ISP access using home GGSNThis test case is similar to test case 1, except that MS1-A usesa subscribed APN to access the ISP.


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TestingPDP context testing Internet/ISP access using visited GGSN


SGSN

DNS

GGSN

GGSN

Roamer1ActivatePDP context

(APN=internet)

2Query(internet)

3Response

Intranet.MNCmmm.MCC.nnn.gprs

4CreatePDP context

(APN=internet.MNCmmm.MCCnnn.gprs)

Pretest conditionsMS1-A has subscribed to the APN Internet. The VPLMN not

allowed flag is not set for the APN.M

S1-A is GPRS attached inPLMN-B.Test actions

MS1-A performs an activate PDP context request with the APNInternet. A request to download a specified file is made using asupported transport protocol (HTTP, FTP, or WAP).Verification

The file transfer completes successfully with no errors.


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I.2-Cc ti liu theo chun khuyn ngh ca hiphi GSM ca mng Vinaphone


IR 24:Mu bi th nghim dch v chuyn vng quct cho dch v c bn (thoi, SMS)

IR.35:Mu bi test dch v chuyn vng quc t cho

dch v GPRS IR.32, IR.60:Mu bi test dch v chuyn vng quc

t cho Camel

IR.21:Ti liu tng hp cc d liu k thut mngtheo quy chun ca Hip Hi c dng cung cpcho cc nh khai thc l i tc chuyn vng quc t


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I.2-Cc ti liu theo chun khuyn ngh ca hiphi GSM ca mng Vinaphone


IR 26: Mu bi test dch v chuyn vng quc t v nnglc chc nng dng cho cc dch v cng thm pha 2, lbi test b sung cho bi test IR.24 do vy cn c kt hpvi kt qu ca bi test IR.24 (cc dch v c bn v dchv cng thm pha 1).

IR.27: Mu bi test dch v chuyn vng quc t v nnglc chc nng dng cho cc dch v data pha 1 v dch vfax.

TD.35: Ti liu nh r thng tin d liu lin quan ngian ln cc c truyn gia cc h thng kim sotgian ln (s dng trong chuyn d liu cc chuyn vngquc t thi gian gn thc).


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II -Qui trnh khai thc dch v CVQT


Tm kim i tc, lin h m phn hp ng K kt hp ng, trao i SIM v cc thng tin mng

Tha thun kt ni bo hiu roaming

Th nghim dch v

Khai thc chnh thc dch v Qun l dch v sau khai thc


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Qui trnh khai thc dch v CVQT


Tm kim i tc, lin h m phn hp ng Phng QLKTNV ch tr trao i, m phn, k hp ngvi i tc mi.

Cc bc c th: Da theo nh hng v k hoch c duyt, la chn cc i tc

ph hp vi cc tiu ch m phn tha thun. Da theo theomu ca Hip hi GSM, iu chnh ph hp vi iu kin caCng ty Vinaphone. Ty theo tng nh khai thc la chn dchv thch hp ( GPRS, PPS, 3G).

m phn cc ni dung lin quan n hp ng CVQT trn c s

mu hp ng ca Hip hi c iu chnh cho ph hp vi iu kinv kh nng ca Cng ty.

Trnh Lnh o Cng ty k hp ng sau khi thng nht cc nidung hp ng vi i tc quc t.


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Trao i SIM

th nghim v cc ti liu mng vi itc mi Trn c s SIM v th co th nghim phng KD cung cp,

cn c vo nhu cu ca i tc P.QLKTNV thc hin traoi SIM v th co th nghim vi i tc quc t.

Trao i s liu SIM sau khi c xc nhn v vic gi vnhn SIM y .

Chuyn SIM th nghim ti cc n v (OMC v cc Trungtm VNP khu vc).

Thc hin trao i d liu mng IR.21 v ph lc AA.14theo chun khuyn ngh ca Hip hi.


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Tha thun kt ni bo hiu Roaming Phng QLKTNV ch tr thc hin tha thun v kt ni bohiu gia 2 mng: Phi hp vi Cng ty VTI thng nht

phng n kt ni tha thun kt ni bo hiu vi cc itc chuyn tip bo hiu STP.

Khai bo s liu th nghim Cn c s kt ni bo hiu c tha thun tin hnh

khai bo knh bo hiu MAP vi i tc, Trung tm HTTkhai bo s liu mng IR.21 ca i tc trn mt tng i

tin hnh th nghim. Trung tm DVKH tin hnh m dch v CVQT v dch v

gi quc t cho cc SIM th nghim cp cho i tc.


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Khai bo s liu th nghim Trung tm pht trin dch v thc hin: Khai bo s liu mng IR.21 ca i tc trn h thng tr

trc mng Vinaphone.

Khai bo d liu cho SIM th nghim tr trc Vinaphone. Khai bo s liu cc dch v CVQT cho thu bao tr trc

Vinaphone.

i sot cc thu bao tr trc vi trung tm DVKH.


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Qui trnh th nghim IREG v TADIG

Trung tm HTT: Tin hnh th nghim cc dch v CVQT (GPRS roaming, CAMELroaming) theo cc bi th IR.24, IR.26, IR.32, IR.35, IR.60do

Hip hi qui nh . Tp hp kt qu th nghim IREG cung cp cho Trung tm DVKH( n v ch tr th nghim TAP file ) th TADIG. Trao i v k xc nhn kt qu th nghim IREG vi i tc trn cs th nghim thnh cng TAP file. Tin hnh cc bi th nghim li trong trng hp kt qu th

TADIG khng thng nht. Bo co kt qu th nghim v phng QLKTNV.

Trung tm DVKH:Ch tr th nghim TAP file file bng vic x l cc d liu cc theo ktqu cc bi th IR.24, IR.26, IR.32, IR.35, IR.60 do i tc v trung tmHTT cung cp .Tin hnh th nghim s liu thc theo cc bc:

+ Bc 1: Tip nhn kt qu th nghim IREG kim tra TAPfile

+ Bc 2: Lc s liu cc trng hp th TAP file t s liucc ly c t cc tng i da trn c s th nghim IREG

+ Bc 3: To TAP file th nghim thc theo khun dng TAP3.+ Bc 4: Thm nh TAP file v kt qu th IREG. Trn c s

thm nh kt qu ph hp, gi Tap file gi cho i tc i tc thmnh.

+ Bc 5: Nhn Tapfile t i tc v thm nh kt qu thnghim TAP file ca i tc ( lp xc nhn kt qu th nghim TCC ).Bo co kt qu th nghim v phng QLKTNV.

Phng QLKTNV: Thu thp cc bo co th nghim thnh cng IREG v

TADIG tin hnh cc th tc khai thc chnh thc dch v.


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Khai thc chnh thc dch v

Phng QLKTNV gi thng bo cho cc n v cc ni dung lin quan cavic khai thc chnh thc.- Tn i tc khai thc.- Phm vi dch v khai thc.- Ngy khai thc chnh thc.- Cc ti liu, d liu mng lin quan: AA.14 v IR.21 ca i tc, hp ng

CVQT k gia Vinaphone v i tc.

Phng QLKTNV gi thng tin lin quan n khai thc chnh thc dch v choNh thanh khon.

Cc n v thc hin y cc chc nng nhim v c giao, cp nht dliu cc, khai bo d liu mng, cp nht thng s thc hin thanh tonvi cc i tc, nh thanh khon theo ng hp ng k


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Qun l dch v sau khai thc


Th tc cp nht hp ng

Th tc cp nht CSDL mng:

Phng QLKTNV l u mi trao i vi i tc v cc n v lin quan vcc ni dung thay i lin quan n hp ng, kim tra, m phn v trnhLnh o Cng ty k kt cc ni dung cp nht hp ng. Chuyn cho i tcv cc n v trong Cng ty. Phng KTTK-TC, TTHTT, TTDVKH, TTPTDV, VNP1;2;3: Trin khaicp nht v thc hin theo ng ni dung hp ng mi c cp nht.

Cp nht s liu mng IR.21 v ph lcAA.14 ca Vinaphone:a) Phng QLKTNV ch tr cc phn sau:- Cp nht cc thay i d liu mng IR.21 v ni dung AA.14 ca

Vinaphone v thc hin trao i IR.21 v AA.14 vi cc i tc, cc i tctrung chuyn bo hiu STP, i tc GRX v nh thanh khon.Gi SIM th nghim ngh kim tra cht lng dch v (nu cn).

b) Trung tm HTT:- xut cc bi o th kim tra cht lng dch v sau cp nht (nu cn).Thm nh kt qu cc bi o th ca cc i tc

Cp nht s liu mng IR.21 v ph lcAA.14 ca cc i tc:a) Phng QLKTNV:Tip nhn, kim tra cc thay i s liu mng IR.21 v ph lc AA.14 cai tc.Gi s liu mng IR.21 v ph lc AA.14 ca i tc cho cc n v trong

Cng ty, Cng ty VTI, cc i tc trung chuyn bo hiu, i tc GRX vnh thanh khon.Xc nhn vic cp nht ca Vinaphone vi cc i tcb) Phng KTTK-TC, trung tm HTT, DVKH, PTDV, VNP1;2;3:Cp nht, thc hin khai bo cc thay i ca i tc, kim tra cht lngdch v nu c yu cu ca i tcCc n v trong Cng ty sau khi trin khai thc hin cc thay i, gi xcnhn qua ng e-mail.


28/41



Kim tra cht lng nh k v t xutTrung tm HTT:Ch tr kim tra, tp hp kt qu kim tra ca cc Trung tm VNP khu vc v boco Cng ty cht lng dch v nh k 1 thng/1 ln.Ch tr kim tra v bo co Cng ty cht lng dch v khi c yu cu t xut

Cc Trung tm VNP1,2,3:Hng thng thc hin cp nht v tr th cc dch v c bn ca thoi, tin nhn v

GPRS: gi n, gi i, nhn tin, nhn tin, WAP, WEB, MMS. vi cc SIM thnghim ca mng khch mt s tng i trn mng. (Mu bo co biu 9)Ch tr kim tra v bo co Cng ty cht lng dch v khi c yu cu t xut

Trung tm DVKH:Kim tra cc bn ghi cc lin quan n cc bi th ca cc n v.

Trung tm PTDV:Thc hin kim tra v bo co nh k cc dch v gia tng ca thu bao CVQT.


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Qun l dch v sau khai thc X l s c


X l s c vi thu bao outbound

Trung tm VNP1,2,3, cc Vin thng tnh/thnh ph:Tip nhn khiu ni s c t khch hngHng dn m bo khch hng s dng ng dch v.Kim tra c s d liu ca thu bao m bo dch v CVQT v gi quc t c mBo co s c v trung tm HTT, phng CSKH.

Trung tm HTT:Tip nhn khiu ni s c, thng bo phng QLKTNV.Kim tra khai bo, cp nht s liu mng IR.21 ca i tc.Yu cu i tc kim tra cp nht s liu mng IR.21 ca Vinaphone.Phi hp vi cc i tc bo hiu kim tra kt ni bo hiu.

Phi hp vi i tc thc hin cc bi th dch v ( hoc truy cp giao din thitb qun l cht lng dch v ) tm kim nguyn nhn s c.Bo co kt qu x l cho phng CSKH v QLKTNV.

Ch tr kim tra v bo co Cng ty cht lng dch v khi c yu cu t xut


30/41

Qun l dch v sau khai thc X l s c


X l s c vi thu bao inboundTrung tm PTDV:- Tip nhn khiu ni s c t i tc roaming.- Trao i vi i tc roaming m bo thu thp y cc thng tin thu baogp s c (IMSI, ISISDN, thi gian, a im)- Chuyn thng tin khiu ni s c cho trung tm HTT- Tp hp bo co kt qu x l s c cho Phng QLKNTV.

Trung tm HTT:Tip nhn khiu ni s c t trung tm PTDVKim tra s c mng li ti thi gian, a im c cung cpKim tra khai bo, cp nht s liu mng IR.21 ca i tc.Yu cu i tc kim tra cp nht s liu mng IR.21 ca Vinaphone.Phi hp vi cc i tc bo hiu kim tra kt ni bo hiu.

Phi hp vi i tc thc hin cc bi th dch v tm kim nguyn nhn sc

Trung tm VNP1,2,3- Phi hp vi trung tm HTT v i tc thc hin kim tra, th dch v khi cyu cu .


31/41


Th tc x l d liu cc v chng gian ln


Cp nht d liu ccX l cc thu bao tr sau

X l cc thu bao tr trc

Chuyn d liu cc theo thi gian gn thc(NRTRDE) v x l gian ln


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Th tc thanh ton


Phng KTTK-TC Trung tm DVKH


33/41

III - Gii php li lu lng roaming(Steering of Roaming SoR)


Phng php li lu lngoTng quan

oMt s gii php li lu lng hin c trn th trng

ou/nhc im

xut vi mng Vinaphone


34/41

Steering of Roaming


nh ngha: Li lu lng (Steering of Roaming) lkhi nim ch cc phng php nhm phn b li slngMS (Mobile Subcriber) thc hin roaming quacc PLMNs (prefered PLMNs v non-prefered

PLM

Ns). Cc gii php SoR hin nay: Li lu lng da trn bo hiu s 7 (SS7)

Li lu lng da trn bo hiu s 7 (SS7) v OTA (Over-

The-Air)


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Call flow h thng li lu lng roaming datrn h thng bo hiu SS7


Global SS7 NetworkVisited Country Home Network

STPSTP

HLRNon-Preferred

RoamingPartners

Preferred

Roaming

PartnerManaged RoamingGateway

Steering applied on outgoing ISD messages from the HLR

Incoming Location Update from Preferred Partner

LocationRegistration HLRAcknowledgment

HLRAcknowledgmentForwarded

Incoming Location Update from Non-Preferred Partner

LocationRegistration HLRAcknowledgment

Reject Forwardedfor Non-Preferredn/w

SteeringofRoamingsystem ofTata communication


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Li lu lng roaming da trn h thng bo hiuSS7


Gii m bn tin Location Update

nh dng a ch lin mng Gii m bn tin Reject


37/41

Call flow h thng li lu lng roaming datrn h thng bo hiu SS7 & OTA


Global SS7 NetworkVisited Country Home Network

STPSTPHLR

PreferredRoaming

Partners

Non-Preferred

RoamingPartner

Non-Preferred

RoamingPartner

Incoming Location Update from Non-Preferred Partner

Incoming Location Update from Preferred Partner

SteeringofRoamingsystem from Gemalto

Ok procedure completed

SMS: Update the Sim New PLMN: PreferredMNO

Ok procedure completed

Roamer


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Steering of Roaming


Anti-SoR (Steering of Roaming): GLR

TRE (Starhome company)

RoamMagnet (Roamwave company)

TRE v RoamM

agnet b cm bi GSM

A v BARG.


39/41

Steering of Roaming


SS7:

u im H tr tt c GSM v GPRS.

Khng cn u t phn cng.

Kh nng trin khai nhanh, khng nh hng ti hin trng mngVinaphone.

Khng yu cu Vinaphone cp nht IR21. Cung cp giao din qun l trn nn web.

Nhc im Cha h tr c nng loi handheld mi nht hin nay

(Blackberry, Palms,).

Cha loi b c nh hng ca phng php anti-SoR (RNA,GLR).

Cha gii quyt c vn Ping-pong ca MSC/VLR khiMS vng bin gii ca cc PLMN.


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Steering of Roaming


SS7 & OTA: u im

Thi gian kt ni nhanh hn h thng SS7

Nh vic gi bn tin cu hnh mng c nh dng SMS PP nnphng php ny hn ch c nh hng t phng php li lu

lng hin c trn th trng Nhc im

Yu cu ca h thng li lu lng ny l SIM h tr OTA, Javaenabled. Nhng SIM c khng h tr OTA/Java enabled s khngtn dng c u im ca gii php ny. Trong khi , vic i

SIM cho khch hng khng mang tnh kh thi cao


41/41


CHN THNH CM N ANH CH VCC BN CH LNG NGHE.

END.

Date post:	10-Apr-2018
Category:	Documents
Upload:	ha-tai-duc
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