CNG TY DCH V VIN THNG T GII PHP DCH V 3G -------------------------------- M T GII PHP VIDEO TNG TH CHO MNG VINAPHONE (K hoch trin khai trc khi khai trng dch v 3G) H ni - 2009 Gii php Video mng VinaPhone T GPDV 3G Cng ty dch v vin thng VinaPhone 6/24/2009Trang 2 Mc lc 1.GII THIU .................................................................................................................................................. 4 1.1Phm vi cp ................................................................................................................................... 4 1.2Cu trc ti liu ................................................................................................................................... 4 1.3Ghi ch s dng ................................................................................................................................. 4 1.4Cc thut ng v t vit tt .............................................................................................................. 4 2.KIN TRC TNG TH GII PHP VIDEO MNG VINAPHONE .................................................... 5 2.1H thng AAA server ......................................................................................................................... 5 2.2H thng CSDL khch hng (Subscriber Profile Management) .................................................. 7 2.3H thng qun tr ni dung (CMS) ................................................................................................... 7 2.4H thng 3G Portal ............................................................................................................................. 7 2.5Tch hp vi h thng tnh cc (Online Charging System) ....................................................... 7 3.PLATFORM TRN NN CHUYN MCH KNH (CIRCUIT SWITCH) ............................................. 8 3.1Video gateway .................................................................................................................................... 8 3.1.1Gia tng ti a thi gian thit lp cuc gi 3G-324M : ........................................................ 8 3.1.2K thut Video Refresh: ........................................................................................................... 8 3.1.3K thut chuyn i tc pht (Trans-rating): ................................................................... 9 3.2H thng qun l v pht trin dch v trn min CS .................................................................... 9 3.3Cc ng dng Video c bn trn min chuyn mch knh (CS) .............................................. 10 3.3.1Live TV...................................................................................................................................... 10 3.3.2Participation TV ....................................................................................................................... 10 3.3.3Video Blogging ........................................................................................................................ 11 3.3.4Video Push ............................................................................................................................... 11 3.3.5Video Surveillance .................................................................................................................. 11 3.3.6Video Portal/Streaming .......................................................................................................... 12 3.3.7Video Call Completion to Voice ............................................................................................ 13 3.4Cc ng dng Video nng cao trn min chuyn mch knh ................................................... 13 3.4.1Dch v nhc ch a phng tin (Media RingBackTone) ............................................... 14 3.4.2Dch v Video Mail .................................................................................................................. 14 3.4.3Dch v Video Avatar. ............................................................................................................. 14 4.GII PHP VIDEO STREAMING ........................................................................................................... 15 4.1Tng quan.......................................................................................................................................... 15 4.2Kin trc h thng ............................................................................................................................ 15 4.3Hot ng ca h thng .................................................................................................................. 17 4.4Mt s tnh nng ca h thng ....................................................................................................... 17 5.D N SDP ( TRNH TP ON) ................................................................................................... 18 6.KT LUN .................................................................................................................................................. 19 7.QUY M U T CHO D N PLATFORM VIDEO MIN CS ....................................................... 20 7.1Video Gateway (cu hnh 1+1) ....................................................................................................... 20 7.2H thng qun l to lp v pht trin dch v: ............................................................................ 20 Gii php Video mng VinaPhone T GPDV 3G Cng ty dch v vin thng VinaPhone 6/24/2009Trang 3 Danh sch hnh v Hnh v 1: Kin trc tng th cho gii php Video mng VinaPhone .................................................... 5 Hnh v 2: M hnh h thng AAA server ca VinaPhone ........................................................................ 7 Hnh v 3: M hnh kt ni Video Gateway ................................................................................................... 8 Hnh v 4: M hnh kt ni h thng qun l v pht trin dch v min CS ....................................... 9 Hnh v 5: S kt ni dch v Participation TV..................................................................................... 11 Hnh v 6: S kt ni dch v gim st Video ....................................................................................... 12 Hnh v 7:M hnh dch v Video Call Completion to Voice ................................................................ 13 Hnh v 8: M hnh cuc gi Media RingBackTone .................................................................................. 14 Hnh v 9: S kt ni tng th Video Streaming .................................................................................. 16 Hnh v 10: S kt ni chi tit gii php Video Streaming ................................................................ 16 Hnh v 11: M hnh hot ng ca gii php Video Streaming ........................................................... 17 Gii php Video mng VinaPhone T GPDV 3G Cng ty dch v vin thng VinaPhone 6/24/2009Trang 4 1.Gii thiu 1.1Phm vi cp Ti liu ny nghin cu mt gii php tng th v cc dch v Video (Video-related services) trinkhaitrnmngVinaPhone.Giiphpnygiithiunhmxydngmththngnn tngthngnht chung cung cp cc dch vVideo trn c 2 min chuyn mch gi (PS) v chuyn mch knh(CS) vi cng mt ni dung thng tin. Gii php ny c xy dng da trn nghin cu tnh hnh trin khai cc dch v Video ca ccnhkhaithctrnthgiinhCSL(HongKong),ChinaUnicom(China),SingTel,M1, StarHub (Singapore), Indosat (Indonesia), v da trn Thng tin ca cc nh cung cp thit bnhNokiaSiemens,Ercisson,Huawei,ZTE,Dilithium.thngquaccbuihithov 3G t chc ti cng ty. 1.2Cu trc ti liu Ti liu bao gm nhng phn sau: Phn 1: Gii thiu phm vi cp, cu trc ti liu, cc t vit tt. Phn 2: Kin trc tng th cho gii php Video mng VinaPhone. Phn 3: M t gii php Video trn min chuyn mch knh (CS). Phn 4: M t gii php Video trn min chuyn mch gi (PS)Phn 5: cp n d n SDP. Kt lun. Quy m u t h thng Platform Video cho min CS. 1.3Ghi ch s dng Nhng thng tin (d liu) trong ti liu ny c a ra bi t gii php dch v 3G thnh lp theoquytnhs616/Q-TCCB-Lngy27/04/2009caGCngtydchvvinthng. Cc thng tin trong ti liu ny c tham kho qua cc bui hi tho vi cc hng cung cp thit b v da trn thng tin nghin cu v 3G ca cc nh khai thc khc trn th gii. Mi thng tin trong ti liu ny cn phi c bo mt, khng c php cung cp ra ngoi di bt k hnh thc no. Mt s hnh v trong ti liu ny c s dng li t ti liu cung cp ca cc i tc.1.4Cc thut ng v t vit tt Thut ngGii thch PSChuyn mch gi (Packet Switch) CSChuyn mch knh (Channel Switch) DPIDeep Packet Inspection (phn tch gi tin IP n layer 7) AAAH thng Authentication, Authorization, Accounting SSO Giao din cho php truy cp nhiu ng dung khc nhau trn WEB s dng 1 ti khon duy nht (Single Sign-On) 3GPP T chc tp hp ca cc nh khai thc, nh cung cp nh ngha ra tiu chun cho cc h thng thng tin di dng DCCA L mt ng dng trn Diameter phc v cho vic tnh cc tr trc online SCAP L mt ng dng trn Diameter phc v tnh cc tr trc online, h thng ca Ericsson thng dng Gii php Video mng VinaPhone T GPDV 3G Cng ty dch v vin thng VinaPhone 6/24/2009Trang 5 2.Kin trc tng th gii php Video mng VinaPhone TDM TDM BCCSRadius AccountingVideo GWSQLAAAContent Provider Content ProviderWeb/Wap Portal DRM CM Subscriber Profile Billing interfaceMRBT Video mailIVVR, LiveTV, Video Blogging, Participation TV, Video Surveillance, ...Downloading StreamingManagement LayerService LayerEnablerCore NetworkMSC-Server MGW SGSN/GGSNNode BBICC/SIP/ISUPIP/E1IP IP 3G-H324 Hnh v 1: Kin trc tng th cho gii php Video mang VinaPhone H thng tng th c thit k bao gm cc phn t c bn sau: 2.1H thng AAA server Hin nay h thng AAA server ca VinaPhone ang s dng sn phm Radius Steel-Belt ca JuniperctrangbtrongdnWAPcaMotorolatnm1999.Phinbnsdng qu c, hin nay ch s dng duy nht tnh nng nhn thc cho GPRS. Gii php Video mng VinaPhone T GPDV 3G Cng ty dch v vin thng VinaPhone 6/24/2009Trang 6 Khi trin khai 3G cc ng dng, dch v chyu c trin khai trn min chuyn mch gi, thc hin nhn thc, tnh cc cho cc dch v ny cc h thng ng dng dch v phi c kh nng nhn bit c s MSISDN t a ch IP ca handset. Chng hn khi cung cp dch v Mobile TV hay Video On Demand trn min chuyn mch gi, Media Player trn my ca khch hng s thc hin streaming, ng dng Mobile TV hay VOD ch c th nhn c a ch IP t my di ng ca khch hng. c th xc nh c s MSISDN ca khch hng cc nh khai thc phi s dng mt trong nhng phng n sau: Trong platform dch v c tch hp tnh nng Radius Accounting Server nhn bn tinradiusaccountingtGGSNgin.ChnghnnhhthngMMSCyucu khch hng khi s dng dch v phi kt ni thng qua WAP Gatway. H thng WAP GW c tch hp phn Radius Accounting Server thc hin phn gii s MSISDN t achIPcamydingvkhithchinktnitWAPGWnMMSCqua HTTP, WAP GW s chn thm thng tin MSISDN trong phn HTTP-Header.Nu trin khaitheophngphpnymingdngdchvphicringRadiusAccounting ServervmimtdchvsdngmtAPNkhcnhau.iunyingcli nguyntcsdngduynhtAPNchottcngdngdchvtrnnn GPRS/EDGE/3G n gin ha vic s dng dch v pha khch hng. SdnghthngclpckhnngphntchsugitinIP(DPI-DeepPacket Inspection), v bn cht cng l bt gi tin Radius Accouting Request xc nh s MSISDNtachIP.Tuynhinphixydngmtgiaodinchungiahthng DPIvcchthngdchvckhnngxcchcsMSISDN.Mtsh thng SDP ca mt s i tc c tch hp thm chc nng DPI h tr cho vn ny. Hinnay trn mngVinaPhone tnhnng DPI c tchhp trong h thng Flexi GGSN ca d n m rng GPRS 5600K ang c trin khai (d kin qu III s a vo khai thc). Tuy nhin kh nng tch hp vi ng dng bn th 3 (third party application) cng l mt cu hi ln. Xy dng mt h thng AAA chung cho ton mng thc hin chc nng y ca mt h thng AAA (Authentication, Authorization, Accounting) cp pht a ch IP cho mydingkhikhchhngthchinPDPcontext.HthngAAAckhnngh trchongdngbnth3thchintruyvnsMSISDNtachIPcaclient thng qua cc giao thc n gin nh WEB service. Hin nay h thng GPRS 5600K caVinaPhonecngctrangbmtmoduleAAAserver.Tuynhin,dunglngv kh nng kt ni vi ng dng bn ngoi cha c cp trong d n. Khi trin khai 3G s c rt nhiu cc ng dng dch v s c trin khai trn nn tng IP, do khnngnhnbitsMSISDNcakhchhngrtquantrngtrongvicnhnthcv tnh cc dchv. Vi mc tiu xydng mt phngntng th cho mngVinaPhonev cc dch v trn nn IP nh Mobile TV, VOD, Music Track Download, Ti nhc chung, hnh nh, games, , t gii php dch v 3G xut gii php sau: TrcmttchhpchcnngAAAservertronggiiphptngthvVideocung cptrongdnny.VinaPhonesthchinnhtuynttcccbntinRadius Accouting Request ca APN m3-world t GGSN v h thng AAA ny. ngthisxydngmththngAAAserverclpvicuhnhhnhln phcv choton b thubaoVinaPhone kt ni GPRS/EDGE/3Gv cho php ng dng bn ngoi thc hin truyvn s MSISDN t a ch IP ca my u cui v c tnh nng DHCP (xem hnh v 2) Gii php Video mng VinaPhone T GPDV 3G Cng ty dch v vin thng VinaPhone 6/24/2009Trang 7 SubscriberProfile DatabaseMSISDN/IPWeb serviceAAA ServerSQLGi/IPGGSNAuthentication/AuthorizationAccounting3rd Applications Hnh v 2: M hnh h thng AAA server ca VinaPhone 2.2H thng CSDL khch hng (Subscriber Profile Management) Trong m hnh tng th, h thng qun l h s thu bao gi mt vai tr rt quan trng. Hin naycsdliunyangcqunlmtcchrirc,mimththngdchvu qun l mt CSDL ring v h s khch hng: eZmail, MCA, RBT, GPRS, Khi trin khai cc dch v gi tr gia tng trn nn tng 3G s c rt nhiu dch v khc s c trin khai. Nhu cu cn c mt h thng chung qun l h s ca khch hng l cn thit. C s d liu h s ca khch hng v cc loi dch v khch nhau c qun l trn c s LDAP d dng cho cc ng dng bn th 3 thc hin nhn thc (t chi hoc cho php s dng dch v). Ngoi ra, c s d liu LDAP cng d dng tch hp phn ci t dch v t h thng Portl, USSD, SMS, IVR, Khi trin khai gii php tng th Video, VinaPhone s u t gii php bao gm c chc nng qun lprofile ca khch hng. Trc mt, s phc v cho ccdch v c pht trintrn nn tng ny v sau ny s tch hp cc dch v khc vo CSDL ny nhm to nn mt c s d liu chung qun l tt c cc loi dch v ca khch hng.2.3H thng qun tr ni dung (CMS) LmtthnhphnctchhptronghthngSDP(ServiceDeliveryPlatform)Xem chng 5 ca ti liu. 2.4H thng 3G PortalLmtthnhphnctchhptronghthngSDP(ServiceDeliveryPlatform)Xem chng 5 ca ti liu 2.5Tch hp vi h thng tnh cc (Online Charging System) i vi cc dch v trn min CS, vic tnh cc s da vo thi gian ca cuc gi Video: i vi thu bao tr sau, tng i MSC s pht sinh ra CDR. i vi thu bao tr trc, thc hin kt ni vi h thng PPS-IN thng qua giao thc CAMEL2 ividchvMobileTV,VoDtrnminPSvictnhccsctchhpvihthng PPS-IN s dng Diameter. Gii php Video mng VinaPhone T GPDV 3G Cng ty dch v vin thng VinaPhone 6/24/2009Trang 8 3.Platform trn nn chuyn mch knh (Circuit Switch) 3.1Video gateway y l mt thnh phn quan trng nht ca h thng v c th c xem nh tri tim ca h thng cung cp cc dch v Video trn min CS. Mc tiu ca VinaPhone l xy dng mt mt h thng Video GW cht lng dch v cao, kh nng tch hp mm do vi cc chun m to iu kin pht trin nhng ng dng, dch v c bn v gia tng trn nn tng s dng Video Call. Hnh v 3: M hnh kt ni Video Gateway Video Gateway hay cn gi l Multimedia Gateway cung cp chc nng transcoding v chc nnggatewaychovicxlcucgi,iukhinchuynimvideo,thoigiaccgiao thc 3G-324M/H.324M, ITU-T H.323, IETF SIP, RTSP. Video Gateway h tr vic chuyn i m theo nhng my u cui khc nhau v h tr cc chun m ha thoi v video khc nhau, c th: Kh nng chuyn i m theo thigian thc (realtime transcoding)gia nhng giao thc v m ha cho thoi v video khc nhau, chng hn nh chun codec cho thoi GSM-AMR, G.723.1, G.726, G.729 v G.711 hay chun codec cho Video nh H.263, H.264 v MPEG4 Htrnhnggiaothckhcnhaunh:ITU-TH.324,H324M,3G-H324M,H.323, IETF RTP, SIP, RTSP. Hthngvideogatewaycncthmnhngtnhnngxlcbitnngcao cht lng hnh nh nh sau :3.1.1Gia tng ti a thi gian thit lp cuc gi 3G-324M : Bng vic s dng s dng MONA (ITU-H.324- ph lc K). Tr thi gian thit lp cuc gi l mttrongnhngrocncnkhcphckhicungcpccdchvvideo.MONAITU-Tgip lm gim thi gian thit lp cuc gi xung gn nh ch cn 1 giy. Thng 8 nm 2006, ITU-T (hip hi vin thng quc t) ph chun MONA bao gm mt thut ton cho php cc thit b u cui 3G trao i cc u tin sm hn v bt u trao i m thanh trong phm vi l vng.NgoirahthngvideogatewaycnghtrITU-TWindowedNumberedSimple Retransmission Protocol (WNSRP)- mt k thut ci tin kh nng truyn ti H.245. 3.1.2K thut Video Refresh:Cng ngh ny cung cp cc c ch nng ng gim thiu nhng s c v hnh do giao dingyrachoccngtruynhnhnhoci.Videovgiplmgimbtnhng khong thi gian c s c v hnh nh t mt vi giy xung cn mt giy, trong khi vn duytrcchtlngvtchnhnhttnht.Doccvideocliplmthotng thng xuyn trong hu ht cc dch v gi tr gia tng, nn cng ngh Video Refresh c th nhnraccyucucbncngnhphthinraccvideolintccinthoicm tay, v yu cu cc in thoi ny gi cc khung truyn c bn ngay khi c th. Gii php Video mng VinaPhone T GPDV 3G Cng ty dch v vin thng VinaPhone 6/24/2009Trang 9 3.1.3K thut chuyn i tc pht (Trans-rating):Cho php chuyn m v chuyn tc trong khi gim thiu tr v ti a ho s ng nht gia m thanh v hnh nh (Lip Sync) v khng cp thm ch mang tnh thut ton cng nh cc k thut chuyn m khc. Hn na, tr ny l nhng khong thi gian khc nhau gia m thanh v hnh nh do gy ra nhng vn v ng nht gia m thanh v hnh nh. Cng ngh ny cho php m thanh v hnh nh l ng nht, lm tng s tho mn ca khch hng. 3.2H thng qun l v pht trin dch v trn min CS Hnh v 4: M hnh kt ni h thng qun l v pht trin djch vu min CS Cng vi Video GW, h thng qun l v to lp dch v to nn mt platform hon chnh cung cp cc dch v trn min chuyn mch knh. H thng ny phi bao gm cc tnh nng c bn sau: C mt mi trng to lp dch v (Service Creation Environment-SCE) tin tin nht: chophpmtlotccngdngcthddngvnhanhchngctolpv iu chnh, s dng mt GUI scripting v ngn ng lp trnh scripting chng hn nh PHP. Gii php c th m rng vi d phng y - m rng h tr ti hng triu thu baoVi SCE, cc dch v c th nhanh chng c pht trin, iu chnh, lm mu, trin khai, v thay i theo gi/ngy. D dng pht trin cc dch v ch vi ngn ng lp trnh script. Cthddngphttrinccdchvvsdngcngchungmttinguynnh: Video Blogging, Video Push, Video2Voice, Video Portal, Video Surveillance, Live TV, vv Sn sng vi mi trng IMS - u t hin ti cho 3G, ti s dng sau ny h thng phi thch hp vi mi trng IMS.My ch lp trnh ng dng (Programmable Applicable Server) c th c s dng to ra cc ng dng video phc tp. VinaPhonecthtphttrinvshuccngdngdchvmkhngphii ph vi cc ng dng dch v c nh i hi phi c nhng n lc v chi ph ng k ci tin v nng cp. Gii php Video mng VinaPhone T GPDV 3G Cng ty dch v vin thng VinaPhone 6/24/2009Trang 10 Cc tnh nng cao cp c nht (Advanced Unique Features): cung cp cc tr ti thiu(Unicoding),lip-synchlnnht,khnngphchinhanhnhtcclivideo (Video Refresh) v thi gian thit lp cc phn video nhanh nht (MONA/WNSRP).Thngkhonthnhcucgi(CompleteCallStatistics):htrmtdyghichp (suite of logging) cc thng k chi tit v ng dng, lu tr d liu, ngi s dng v khai thc d liu. H tr nhiu ngn ng: h tr Unicode v ting Anh c coi nh l ngn ng mc nh 3.3Cc ng dng Video c bn trn min chuyn mch knh (CS) Gii php tng th v Video m VinaPhone trin khai s m bo cung cp c nhng dch v c bn nh sau (gii php cung cp mt nn tng cho php VinaPhone d dng cung cp cc dch v m khng phi thm thit b phn cng v phn mm bn ngoi): 3.3.1Live TV Live TV l mt ng dng m ngi s dng c th truy cp cc ni dung v truyn hnh thng qua mng 3G. Lung Video cht lng cao thi gian thc c th c pht thng qua dch v Video Call trong mng 3G (Video Call)hoc c th thc hin qua min PS bng kt ni n h thng WAP Portal. TrnminCS,giiphpdatrnPortal/Menucungcpgiaodinnginvdsdng nhhngnmtsknhtruynhnh,chophpkhchhnglachnknh,iuchnh bng vic s dng tnh nng DTMF (my di ng s c tnh nng nh thit b iu kin t xa ca TV thng thng). s dng dch v khch hng s thc hin cuc gi Video n mt s tt d nh. Trn min PS, c 2 phng thc khch hng c th truy cp dch v Live TV: Truy cp thng qua WAP3G Portal bng trnh duyt WAP/WEB ca my di ng qua min chuyn mch gi GPRS/EDGE/3G. My u cui s kch hot ng dng Media Player v thc hin Streaming n Streaming Server ca h thng. Truycpthngquamtngdngclientccittrnmyucuicakhch hng (gii php on-device Portal)3.3.2Participation TV Cho php khch hng c th tng tc vi cc chng trnh truyn hnh thng qua cuc gi Video.KhitrinkhaidchvnyVinaPhoneslmvicviccknhtruynhnh.Khithc hinchngtrnhtngtcvitruynhnh,hnhnhcakhchhngsctruynhnh trc tip trn mn hnh TV. Dch v ny cng s mang li hiu qu rt ln v mt doanh thu cng nh ngha dch v.Gii php Video mng VinaPhone T GPDV 3G Cng ty dch v vin thng VinaPhone 6/24/2009Trang 11 Hnh v 5: So d kt ni djch vu Participation TV 3.3.3Video Blogging Khch hng ch cn mt my in thoi c camera v kt ni Video Call 3G bng cch quay video call n mt s tt v la chn Video Blog menu. Khch hng c th chi s Video cho ngi thn v bn b. 3.3.4Video Push VidchvVideoPush,VinaPhonecthcungcpchokhchhngnhngthngtincp nht bng Video chng hn nh : bn tin ti chnh, bn tin thi s, Khi khch hng ng k sdngdchvhthngskhitomtcucgiVideonmycakhchhng.Nu khch hng bn, cuc gi s c nh tuyn vo h thng Video Mail v khch hng c th truy cp v sau. C rt nhiu ng dng v dch v c th trin khai trn nn tng Video Push. ChnghnnhVideoGreeting,nhtknghs(hngngyhthnggichokhchhng ngkdchvnhngvideoghilinhtknhngnghsniting,dchvnyc trin khai Indonesia tng i thnh cng) 3.3.5Video Surveillance VidchvgimstVideo,khchhngchthngIPcameravngkdchvvi VinaPhonekhchhngcthgimstthngquaCameramilc,mini.yldchv mang li tin ch cao v ha hn tim nng v mt doanh thu. Gii php Video mng VinaPhone T GPDV 3G Cng ty dch v vin thng VinaPhone 6/24/2009Trang 12 Hnh v 6: So d kt ni djch vu gim st Video Nguyn tc s dng dch v: Khch hng quay s vo mt s tt. Sau khch hng s nhn c mt menu v cc loi camera. Khchhnglachnloicameraxem (c2loipubliccamera hoccamerac nhn) Khch hng c th zoon in-out xem camera. Khch hng c th quay li menu chnh la chn camera. 3.3.6Video Portal/Streaming Videogatewaykthpvimththngnntngphttrindchvcungcpcngvideo tng tc. Ngi s dng ch vic thit lp mt cuc gi video n mt s (thng l mt s ngn rt d nh v d nh 888). Cuc gi Video kt ni n ng dng v trn mn hnh hin th mt menu video vi cc yu cu nhp voice v video. Sau , ngi s dng ch cn nhn cc phm s a ra la chn. Thi gian phn hi rt nhanh nh c kt ni circuit switch v ngi s dng c th d dng a ra cc la chn ca mnh. Cng ny thng kt hp vi vicngchuyngi(packetswitched)vccnhkhaithcquytnhloinidungnol thch hp cho mi mt hnh thc giao dch. Thng thng, nu khch hng mun trong thi gianthcvtruycpnhanhchngthvictrinkhaicngtrnnntngcircuitswitchedl ph hp nht. Gii php Video mng VinaPhone T GPDV 3G Cng ty dch v vin thng VinaPhone 6/24/2009Trang 13 3.3.7Video Call Completion to Voice Hnh v 7:M hnh djch vu Video Call Completion to Voice Theo mt s thng k, t l thnh cng cuc gi Video ch chim khong 60%. Nguyn nhn ch yu do thu bao nhn cuc gi khng h tr Video Call (thu bao 2G thng thng). Dch v Video Call Completion to Voice s gii quyt c vn ny. Nu thu bao b gi khng h tr Video Call, tng i MSC s nh tuyn cuc gi n h thng VCCV, h thng VCCV sthitlpcucgithoithngthngnthubaoBtrongkhithubaoAvnthchin cuc gi Video v cuc m thoi vn c thc hin bnh thng. Dch v ny s trnh tht thot doanh thu.3.4Cc ng dng Video nng cao trn min chuyn mch knhGii php tng th VinaPhone a ra phi c th d dng tch hp vi bn th 3 cung cp cc dch v gia tng trn min CS. Cc gi dch v ny s c tch hp vi Video Gateway.Gii php Video mng VinaPhone T GPDV 3G Cng ty dch v vin thng VinaPhone 6/24/2009Trang 14 3.4.1Dch v nhc ch a phng tin (Media RingBackTone) Hnh v 8: M hnh cuc goi Media RingBackTone M hnh chun cho cuc gi Video RingBackTone nh sau: Thu bao B ng k dch v Video RBT. Thu bao A thc hin cuc gi n thu bao B, cuc gi s c nh tuyn n h thng Video RBT thng qua Video Gateway. Thu bao A s nhn c Video Clip do thu bao B chn la trong qu trnh thit lp cuc gi. Khi cuc gi c thit lp, Video Clip s c gii phng v cuc gi c kt ni Khch hng c th quay li menu chnh la chn camera. 3.4.2Dch v Video Mail C ch hot ng cng nh dch v Voice Mail, cho php thu bao B c th thc hin chuyn cuc gi Video vo h thng khi tt my hoc ngoi vng ph sng. Thu bao B sau c th truy cp vo h thng Video Mail nhn Video.3.4.3Dch v Video Avatar. Cng nh dch v Video RingBackTone thu bao ch gi xem Video trong qu trnh ch nhn cuc gi thu bao B, dch v Video Avatar cho php thu bao A c th nhn c Video trong qutrnhcucgiangdinra.KhithubaoAthchincucgiVideonthubaoB. ThubaoBmunhinthVideoAvatarchothubaoAchkhngphilhinthVideot camera ca thu bao B.Gii php Video mng VinaPhone T GPDV 3G Cng ty dch v vin thng VinaPhone 6/24/2009Trang 15 4.Gii php Video Streaming 4.1Tng quan HthngVideoStreaminglgiiphpmmdo,chiusutcaochovicchuynicc mediaphnbtidirngccthitbchvcc mngch.Victhchngmediav chuyni c tin hnh thi gian thc gim thiu tr, trnhvic thchin chuyn m gin tip, vi cc media kt qu c t vo b nh m nh l yu cu cung cp hiu nng v thng lng ln nht. H thng s c tch hp vi Video Platform min chuyn mch knh CS cung cp cng mt ni dung Live TV v VoD. cungcpdchvtrnnnchuynmchgi,hthngktnitrctipnmngcore GPRS/EDGE/3G (GGSN) thc hin streaming cho khch hng. H thng VinaPhone xut phi h tr c 2 phng thc s dng dch v LiveTV v VoD trn min chuyn mch gi: Khi khch hng truy cp vo WAP3G Portal ca VinaPhone v chn la 1 link, my di ng s kch hot ng dng Media Player mc nh v thc hin streamning. Phng nnyihikhchhngphitruycpvoWAP3GPortal.Hthngphickh nng nhn dng my u cui thc hin vic chuyn i khun dng media, codec m my di ng y h trMtcchtipcnkhc,trnmydingcakhchhngccitphnmm ng dng hay cn gi l on-device portal. Khch hng ch cn kch hat ng dng l c th s dng c cc dch v Live TV v VoD. ng dng ny thng i km theo h thng ca cng nh cung cp. Phng thc ny to nn s thun tin cho khch hng khi s dng dch v. H thng khng cn thc hin nhiu vic chuyn i khun dngfilemediavcodec(ngdngcittrnmyucuisdngchungmt loi khun dng file v codec) H thng Video Streaming h tr truy nhp v chuyn i t nhiu ngun d liu khc nhau, gmcserverHTTP,RTSPvcththchnghivittcccccnhdngfilevcodec thngdngkhcnhau.Viccungcpmediacthcngctinhnhquamtvigiao thc mng ti cc thit b khc nhau. H thng c th tch hp d dng vi h thng qun l ni dung (CMS) thc hin cung cp dchvstreamingchokhchhng.Hthngqunlnidungcthlcabnth3pht trin. Ngun media URL v cc tham s media ch c xc nh s dng cc script ng dng m cng c th giao din vi cc server ng dng bn ngoi v cc c s d liu. Hthngctrinkhaicngvi1cnggiaodinwebportalmccungcp mtgiao din duynht cho dch v v s s th hin kt ni n content m khch hng c th ng truy nhp pht thng qua h thng. 4.2Kin trc h thng H thng c tch hp cht ch vi h thng SDP cung qun l ni dung (content), qun lnhcungcpdchv(CP),qunltnhcc,qunlthngtinkhchhng,baogm cc giao din sau y: GiaodinvihthngCMS/SDPthngquagiaodinHTTP/XMLtinidung video v h thng thc hin streaming. Kt ni vi h thng PPS-IN (OCS) qua giao thc Diameter hoc HTTP/XML thc hin tnh cc. Kt ni vi h thng Radius Server nhn dang s MSISDN ca khch hng. Ktnivihthngqunlprofilekhchhngthchinnhnthc,chpnhn hoc t chi dch v. Gii php Video mng VinaPhone T GPDV 3G Cng ty dch v vin thng VinaPhone 6/24/2009Trang 16 Kt ni vi h thng Live Streaming Encoder bng giao thc RTP Multicast/Unicast Hnh v 9: So d kt ni tng th Video Streaming Hnh v 10: So d kt ni chi tit gii php Video Streaming Gii php Video mng VinaPhone T GPDV 3G Cng ty dch v vin thng VinaPhone 6/24/2009Trang 17 4.3Hot ng ca h thng Thngthng1thubaoyucunidungtccthitbcamnh.Hcthbmvo1 nglinkt,vd:hnhngbndiyucuhinthnidungtrnInternet.Mtmy ch web cung cp thit b vi a ch ca ni c cha ni dung. Thit b c th tip theo sau gi 1 yu cu RTSP hay HTTP ti h thng bao gm cc tham s hin th ti u ca thit b. Hnh v 11: M hnh hoat dng ca gii php Video Streaming H thng nh xc nh content t thng tin c cung cp trongyu cu RTSPvyu cu content t content server t mt h thng qun l ni dung. Content server bt u thc hin dn dnvic ti dliu xung.Khi h thng nhn c nidung n s chuynnidung hin th 1 cch ti u nht trn nhng thit b yu cu, c th thay i m s dng, kch c h thng v bitrate nh c yu cu. 4.4Mt s tnh nng ca h thng c lp vi phng thc truy cp 2.5G, 3G, WiFi, WiMax, EDGE CthtchhpdchvvinhngtrangVideoPortalnitingtrninternetnh MySpace, YouTube, Khng cn yu cu c bit i vi phn mm streaming trn my u cui. H tr progressive download. Tch hp cng ngh chn ni dung qung co. H tr Flash Codec. H tr Streaming cho file JPEG ng, MPEG2 Broadcast SD.H tr IPTV Chnh sch qun l QoS c ng. Giao din qun l WEB GUI H tr Profile mc nh trong trng hp khng nhn dng c my u cui H tr nhiu loi Encoder khc nhau H tr chuyn m online v Offline H tr on-device portal Gii php Video mng VinaPhone T GPDV 3G Cng ty dch v vin thng VinaPhone 6/24/2009Trang 18 5.D n SDP ( trnh tp on) DnSDPcaVinaPhonecphngKHCN&PTMxuttrongttrnhs/PTM ngy 14/04/2009. V c bn d n s xy dng mt m hnh SDP theo nh ngha chun ca OMA (Open Mobile Alliance). Trong d n ny cng cp n nhng thnh phn c bn ca h thng SDP nh: M un qun l ni dung CMS (qun l vng i ca mt ni dung, DRM). M un qun l nh cung cp dch v M un h tr phn phi ni dung,M un tnh cc. M un qun l thu bao. H thng iu khin v gim st bng thng cho tng loi dch v (s dng tnh nng phntchsuccgitinIPnlayer7DeepPacketInspection).Tuynhin,tnh nng ny c trin khai trong d n nng cp mng li GPRS 5600K H thng Portal ca khch hng.. Cc dch v s c tch hp trong h thng SDP theo xut ca P.KHCN&PTM: Dch v gi tr gia tng trn SMS (kt ni SMPP) Dch v gi tr gia tng trn MMS (kt ni MM7) Cc dch v ti ni dung (hnh nh, m thanh, Video Clip, ) Dch v Video Streaming Trong d n SDP c xut trang b mt h thng Streaming Server km theo SDP vi dung lng 250 ngi s dng ng thi. Gii php Video mng VinaPhone T GPDV 3G Cng ty dch v vin thng VinaPhone 6/24/2009Trang 19 6.Kt lun Ti liu trn cp n mt gii php tng th cung cp tt c cc loi dch v Video. V c bn gii php bao gm 03 thnh phn chnh nh sau: HthngVideoPlatformchominCS:HthngbaogmVideoGatewayvh thng qun l, pht trin cc ng dng trn nn CS. Cc dch v c bn c th pht trindatrnnntngnybaogm:LiveTV,VideoPortal,IVVR,VideoBlogging, Video Push, Video Surveilance, (cc dch v ny c ngay khi u t h thng). Cc dchvnngcaocthtchhpbaogmVideoRingBackTone,VideoCall CompletiontoVoice,VideoAvatar,(ccdchvnycthdoitcth3pht trin v tch hp) H thng Video Streaming: H thng Video Streaming cung cp cc dch v Live TV vVideoOnDemandtrnminPShtrc2phngthctruycpqua WAP3G Portal hoc On-Device Portal HthngSDP:HthngSDPqunlnidungcontent,qunlccnhcungcp dchv,qunlprofilecakhchhng,qunlnhnthcvhthngPortalcho ngi dng,. Vcbn3hthngtrncththchinutca3nhcungcpkhcnhaudocc chc nng kh c lp. Tuy nhin, 3 h thng ny phi c tch hp cht ch vi nhau da trnnhnggiaothcchunccptrongtiliunynhmcungcpmtdchv thngnhtchokhchhngtrnc2minPS,CSvicngmtnidungthngtinca CMS/SDP. Tuy nhin, trong qu trnh lm d n c th c 2 phng n: Phngn1:Kthp2hthngVideoPlatformminCSvHthngVideo Streaming vo 1 d n (cung cp bi cng mt i tc) v cng ngh x l Video kh tngtvvicxlchuynmvchuynikhundng,codecchothoiv Video.NhngcngnghnycthnhhngnchtlngdchvVideo.Tuy nhin, cn tch hp cht ch phnVideo StreamingvihthngSDPda trn kin trc v giao din chun ca SDP Phngn2:Kthp2hthngVideoStreamingvSDPvo1dn(nh xut ca P.KHCN). Vic tch hp dch v Video Streaming thc hin d dng v pht trin bi cng mt i tc. Tuy nhin, cng ngh x l Video cho Video Platfrom min CS v Video Streaming c th ca 2 nh cung cp khc nhau do c s khc bit v cht lng x l Video. BivdnSDPvStreamingServerctponlmquytnhutvdn ang c chun b t chc u thu, t gii php dch v 3G xin la chn phng n 2 ch xy dng phng n u t Video Platform trn min CS (sau s tch hp vi d n SDP). Trong khi ch i trin khai xong d n SDP v Streaming Server, c th cho php cc cng tynhVTC,VASC,Comit,thchintrinkhaigiiphpStreamingchoLiveTV,VODvi mhnhphnchiadoanhthu.VbnchtccgiiphpmccdoanhnghipnhVASC, VTC, Comit xut bao gm Streaming Server v SDP ca ring h. Gii php Video mng VinaPhone T GPDV 3G Cng ty dch v vin thng VinaPhone 6/24/2009Trang 20 7.Quy m u t cho d n Platform Video min CS 7.1Video Gateway (cu hnh 1+1) Licensephnmmhtr60concurrentsessions.Hthngckhnngnngcpln480 concurrentsessionsmkhngphithayihaythmnntngphncng(chvicthm card) 7.2H thng qun l to lp v pht trin dch v: License phn mm h tr 60 sessions. Trn c s nn tng ca h thng VinaPhone c th c th pht trin v cung cp c mt s cc dch v LiveTV, Video Surveillance, Video Call Completion to Voice, Video Blogging, Video Push,Participation TV, Video Portal (mt s dch v cn phi tch hp vi h thng SDP/CMS, mt s dch v c th trin khai c ngay l : Live TV, Video Surveillance, Video Call Completion to Voice).