Quy i^inh - Thanli Du'dng
CAC U'U T H E CUA I P T V
Cimg vdi su phat trien manh me cua sd lugng thue bao Intemet bang rdng, cae dieh vu tmydn hinh IP TV va IP TV di ddng da trd nen phd bien d mdt sd nude tren the gidi va eiing dang phat tridn d Viet nam. Dd la mdt xu thd phat trien tat yeu cua cae dieh vu thdng tin tmyen thdng.
IPTV la dich vu tmydn hinh sd tren giao thirc Intemet (Intemet Protocol Television). Vi dimg chung giao thirc Intemet, IPTV mang cac dac tinh cua Intemet, vdi kha nang hdi tu, tuong tac va ca thd hoa. cae dieh vu IPTV cho phep cac dich vu vidn thdng va dich vu tmydn hinh hdi tu lai tren mdt ha tang tmydn dSn duy nhat. Do vay, ngoai dieh vu
Hinh 1: Md hinh cac loai mang truyen hinh
PHAT TRIEN U'NG DUNG
Hinh.2: Truyen hinh tuong tac va video
tmydn hinh, mang IPTV ed the tieh hgp nhidu dich vu dae thii eua mang vidn thdng nhu tmyen tai dii lieu bang rang, Intemet, dien thoai va cd thd tieh hgp ea eae dieh vu di ddng. Su ket hgp Vidn thdng - Tmydn hinh nay cdn cho phep hinh thanh cac dieh vu mdi nhu tmydn hinh theo yeu eau, dien thoai tmydn hinh ...
Khdng thu ddng nhu tmyen hinh tinyen tiidng, IPTV eho phep ngudi dimg dat Uch xem phun, xem tinyen hinh theo yeu eau, khdng le thudc vao gid phat sdng, va tham chi tham gia vao cac chuong trinh tinydn hmh true tuyen. Do do nd tiie hien rd tinh tuong tac cao.
Ddng thdi, nhd kha nang tuong tac nhiing ngudi dimg ed thd dang nhap he thdng dieh vu vdl cae tai khoan khac nhau vao cac khdng gian giai tri tine tuydn khac nhau va cd thd tu do tuy bien giao dien khidn IPTV ed kha nang ea the hda [1,2,3,4,5].
Vdi IPTV, khan gia cd thd tuy y yeu eau, lira chgn eae ndi dung mudn xem ma khdng le thudc vac gid phat sdng, vdl am thanh, hinh anh chat lugng cac, ddng thdi cd the cung cap khdng gidi han cae dieh vu tuong tac qua tmydn hinh nhu cham see sire khoe tai nha, hgc tap tii xa, mua sam true tuyen, giac dich ngan hang tai nha,...
Day thuc su la mdt cudc each mang ve ha tang
theo yeu cau nhin tir phia ngudi sir dung
tinyen thdng - tmydn hinh, cho phep cung cap cac dich vu tmydn hinh ky thuat sd hai chieu tren cac ha tang mang IP bang rdng nhu ADSL, FTTH, HFC, 3G, Wimax.... Viec hdi tu da dieh vu tmydn thdng tren mgt ha tang tmydn dan duy nhat nay dugc ggi la Multiplay. Nhiing uu diem ndi bat ke tren khien IPTV da va dang dan trd thanh mdt xu the mdi.
HIEU QUA K I N H TE
Theo cac sd heu nghien cim [4,5], du kien den nam 2013, doanh thu video true tuydn la 31 ty dd la so vdi 2.1 ty dd la nam 2007 (ABI Research).
Ciing ddn nam 2013, cd I ty ngudi diing video true tiiydn tii con sd 295 trieu ngudi nam 2007 (ABI Research).
cae ludng VOD se vugt ccn sd 7 ty vag nam 2012, tang 6 Ian so vdi 2007; 55% sd TV sd su dung tai gia dinh se la HDTV vao nam 2012, tang tii con sd 34%
vao nam 2007. Intemet Video lam gia tang bang thdng vdl ty le tang tmdng gdp hang nam (CAGR) la 41%. Tdi 2012, 90% lun lugng Intemet se la videg.
Nhu cau va tde dp phat trien cua loai hinh dich vu tich hgp vidn thdng - tmydn hinh dugc du doan kha kha quan. Tuy nhien, Uiach thirc Idn nhat dugc dat ra hien nay la lam the nao de ed the trien khai IPTV
3 8 I TAP CHI CNTT & TT KY 2 (12.2010)
PHAT TRIEN UNG DUNG
1
Home Media Center
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UM Gateway
Hinh 3: Md hinh then l<hai da phuong tien gia dinh (Home Media)
d quy md Idn vdl chi phi thap va phii hgp vdi nhiing didu kien dac thii d Vidt Nam.
IP TV VA IP TV DI DONG 6" VIET NAM Ciing nhu tinh hinh ehung d nhidu noi tren the gidi, viec phat trien cae dieh vu IPTV d Viet Nam tuong ddi ddc lap, thudng chi gidi ban trong ndi mang, chua thuc su dinh hinh vd tinh tieu ehuan hoa Cling nhu vd md hinh td chirc trien khai dieh vu 6 quy md Idn (Uen kdt mang, lien thdng dich vu,...
tren da dang nen tang mang).
Do yeu eau khat khe eiia mdt mang tmyen hinh chcit lugng cao, cae mang dich vu IPTV thudng phai la cae mang cam ket chat lugng theo md hinh cung cap tir- dau-cudi-ddn-dau-cudi (end-to-end). Ben canh dd, eimg vdi nhieu nguyen nhan tii bai toan kinh td cue bd, nen cac giai phap IPTV hien nay thugng cd xu thd ddng km vol cae edng nghe ddc quyen, dd ed thd tdi da hoa lgi nhuan vdi dau tu tdi thidu ma khdng phai quan tam nhidu den cac tham sd phirc tap cua bai toan chung.
Tinh cue bd trong giai phap va hien trang phan tan ve tieu chuan tren timg mang dich vu rieng biet (mang ddng) dan ddn ban chd kha nang phat tridn thue bao (gidi ban ttong ngi mang) va tang ehi phi
eho thidt bi dau cudi cung nhu tang chi phi phat trien thue bao mdi khi kdt ndi, md rdng va khd khan cho viec phdi hgp chia se dich vii giira cac nha cung cap do bi le thudc vao cac cdng nghe dgc quydn.
Viee thieu s\i thdng nhat cac tieu chuan tham chieu chung cQng dan ddn nhiing ban chd trong kha nang kdt ndi lien mang dich vu, gay nhidu bat tien cho ngudi su dung, ha tang dau tu chdng cheo gay nhidu lang phi eho xa hdi.
Ben canh dd, viec tang tmdng tdi un lgi ich ciie bd ma khdng quan tam ddn bat toan tdng thd se nhanh chdng tao ra eae mau thuan va xung dot lgi ich vdi ngudi tieu dung, ddng thdi gay ra nhidu khd khan trong edng tac quan ly nha nude. Vd lau dai, chinh cac nha eung cap dieh vu cQng se gap nhieu khd khan khi thi tmdng ehi bd hep trong sd thue bao hien cd, vdi cac dieh vu tu phat tridn hien cd.
Cdng viec thidt lap cae khung tham ehidu tieu ehuan chung cho mot dia ban rdng Idn d tam qudc gia va khu vuc thdng thudng se vugt ra nggai pham vi boat ddng cua mdt doanh nghiep don le, ma thudc vd pham vi ciia cac co quan quan ly nha nude, vdi nhiing boat ddng hd trg ky thuat cua cae du an cap qudc gia cimg sir tu van chat ehe eua eua cac hen minh cdng nghe Idn va su phdi hgp ciia nhidu
PHAT TRIEN LfNG DUNG
Link LED 100Mbps LED Power indicator
System indicator
• Slot 1 LED
• Slot 0 LED
• SCSI LVD only port
• Ethernet ports
• Console port
doanh nghiep cung cap dieh vu vidn thdng - tmyen hinh tren toan qudc.
Cung vdi viec hd trg cdng tac quan ly nha nude ve kiem soat va nang eao chat lugng dich vu, viee thdng nhat eae md hinh trien khai vdl mdt khung tham ehidu chung cho phep cac mang dich vu ed the lien thdng (loaming), lam giam gia thanh va nang eao tien nghi cho ngudi tieu diing khi dang ky va sit dung dieh vu.
Tai mdi gia dinh, toan bd cac dieh vu tmydn thdng giai tri, lien lae, tu ddng hoa ngdi nha,... dugc Mem soat thdng qua man hinh TV vdi mgt edng tmyen thdng gia dinh (Home Gateway). Dd la y tudng cua mdt trong nhiing chuong trinh KHCN trgng diem cap nha nude ve CNTT va Tmydn thdng giai doan 2006 - 2010 [6]. Chuong trmh nghien ciru nay ciing dd xuat mdt md hinh khung tham ehidu chung (Reference Framework) vd Open IPTV va ha tang ky thuat tich hgp da dieh vu tmyen thdng tren ndn IP (Multiplay) eho cac nha eung cap ha tang va dieh vu vidn thdng - tmydn hinh tai Viet Nam.
Xuat phat tii viee nghien ciru, phan tich cac yeu
cau aia ngudi sir dung dich vu, nha cung cap dich vu, va cua hoat ddng quan ly nha nude, 2 khung tham ehidu chinh da dugc dd xuat. Dd la: HgmeMedla®
Framewgrk va MPF® Framework
+ HomeMedia® Framework: Khung tham chieu cue bd cho thiet lap mdt ha tang mang tich hgp da dich vu tinyen thdng tai mdt khu dd thi hay cum dan cu.
HomeMedia® Framework tap tinng vao mdi tindng tmydn thdng toan dien ttong cae gia dinh va quan he Doanh nghlep-Ngudi tieu dimg (B2C) vdi cac dae ta mang dieh vu ngudi dimg va cac md ta cho phep thiet lap cae mang quy md nhd cd kha nang sSn sang Uen tiidng (roaming) tdi cae mang dich vu khac de phat trien thue bao va chia se ngi dimg/dich vu.
+ MPF® Framewgrk: Khung tham chieu ehung ve kien tnic mang dich vu quy md Idn, tap trung vao giao dien va mdi quan he giiia cac doanh nghiep {B2B) nham tao ra mdt thi tmdng chung tii khau cung cap ndi dung, mang tinydn tai, tdi ngudi tieu dimg ttong ttong mdt chudi cung img dieh vu cd quy md toan qudc.
Nham can ddi hai hoa tat ca cae lgi ich cd hen quan.
4 0 I TAP CHI CNTT & TT KY 2 (12.2010)
PHAT TRIEN LTNG DUNG
Hinh 4: Then khai IP TV
MPF® Framework va HomeMedia®Framework dua ra eae dieu kien rang budc vd phat trien ha tang trong mgt mdi tmdng phat tridn bdn vung.
Nhiing rang budc nay ban dau ciing se ed the gay ra nhiing trd ngai nhat dinh ddi vdl cac nha cung cap dieh vu, chu ydu la xuat phat tii cac ydu td tam ly. Tuy nhien, vi mue tieu cudi ciing cua cac khung tham chieu nay la de tao ra mdt mdi tmdng phat tridn bdn viing trong mgt tam nhin dai ban, nen chac chan rang eae nha eung cap dich vu se hudng img mdt each tieh cue hon khi nhan ra va danh gia dirng vd cae lgi ich trong tam tmng va dai ban.
HomeMedia® Solution la giai phap ve mdt ha tang tich hgp da dieh vu tmydn thdng cho cac cum dan eu va khu dd thi mdi, dugc xay dimg dua tren khung tham chieu HomeMedia® Framework, hudng vao cae tien nghi tmydn thdng giai tri toan dien eho cac cgng ddng dan cu vdl cae tieu chuan qudc td va phii hgp vdl didu kien Viet Nam.
Thdng qua mgt mang IP bang rdng (den tii mang vien thdng bang rdng hoac cap tmydn hinh), HomeMedia® Solution eung cap nhidu tidn nghi tmydn thdng vdi da dang cae dich vu hdi tu sd eho mdi gia dinh. Chang ban nhu: Cae dich vu tmydn thdng giai tri nghe nhin: Tmydn hinh theo yeu cau va rap hat gia dinh;Nghe nhac / Game theo yeu
eau...cae dich vu tmydn thdng lien lae, intemet va tmydn sd Ueu: Cham sdc sire khoe true tuydn (Home- Care) va e-Leaming; Dien thoai tmydn hinh va chia se du Ueu bang rdng; Giri nhan email va duyet web qua man hinh TV; Giao dich thuong mai true tuydn va ngan hang tai nha...; cac dich vu tu ddng hoa ngdi nha, camera giam sat, kdt ndi thiet bi gia dung va cae dieh vu ngdi nha thdng minh khac; Cdng tich hgp tmydn thdng trong 0a dinh (Home Gateway)
Md hinh khung tham ehidu chung (Reference Framework) vd Open IPTV va ha tang ky thuat tich hgp da dieh vu tmydn thdng tren ndn IP (Multiplay) eho cac nha cung cap ha tang va dieh vu vidn thdng - tmydn hinh tai Viet Nam da dugc de xuat. Day la CO sd dd tieu ehuan hoa cho viec trien khai cac dich vu IPTV d quy md Idn, tten pham vi toan qudc dd cd the eimg tao mdt ndn tang chung nham phat trien manh me dieh vu nay d Viet Nam.
Viec thdng nhat cac md hinh trien khai vdl mdt khung tham chieu chung eho phdp cac mang dieh vu ed thd Uen thdng, nang eao chat lugng va giam gia thanh dich vu, didu dd mang lai nhidu tien ich cho ngudi su dung, lgi nhuan eho nha cung cap, ddng thdi eiing hd trg edng tac quan ly nha nude vd chat lugng mang va dieh vu.
Tai thi tmdng Viet Nam, trong nhitng nam qua sd
PHAT TRIEN U'NG DUNG
lugng thue bao di ddng tang len rat nhanh. Ty le tang tmdng eua thi tmdng di ddng trong khu vuc nam d mire cao nhat tren the gidi. Cac dich vu thdng tin di ddng ngay eang phat tridn manh me, trd thanh mdt phan tat ydu trong cudc sdng cua ngudi dan Viet Nam. Ciing vdi dd, mgt thanh phan quan trgng khdng the thieu trgng cac dieh vu thdng tin di ddng dd la cac dich vu gia tri gia tang. Viee phat trien cac dich vu ndi dung eho phdp cac nha khai thac mang phdi hgp eiing cac nha eung cap nham dap img nhu cau eiia khach hang, ddng thdi mang lai ngudn doanh thu Idn.
Hien nay, ciing su ra ddi cua cac giai phap cho mang va dich vu 3G, vdi trgng tam la trien khai eae dich vu gia tri gia tang tmydn sd Ueu va cae dieh vu tren ndn Internet, co hdi thu hut va tang tmdng nhay vgt ve doanh thu eua cae nha mang va eae nha cung cap ndi dung da xuat hien. Nhidu nha khai thac cd kinh nghiem va ed chinh sach phat trien cac dieh vu gia tri gia tang tdt ed the phat trien dugc tdi tten 30% tdng dcanh thu eua mang.
Cac dieh vu 30 va IP TV di ddng phd bien nhat ma cac nha mang tai Viet Nam hien nay dang gidi thieu den ngudi diing la:
- Cupe ggi thay hinh (Videg Call) - Intemet di ddng (Intemet Mobile) - Tmydn hinh di ddng (Mobile TV) - Camera di dgng
- Di ddng bang rdng (Mgbile Broadband) - Cdng thdng tin Portal
- cac dieh vu ndi dung khac: xem va tai chp ve dien thoai, nghe va tai nhac, game onhne...
Su quan tam chu ttgng phat trien gia tri gia tang da va dang dem lai nhiing kdt qua kha quan minh chimg chg su lua chgn dimg dan eua cac nha mang. Ket qua kinh doanh eua cae nha khai thac vidn thdng cho thay: ty ttong doanh thu dieh vu gia tri gia tang ttong tdng doanh thu cua toan mang Uen tuc tang eao. Con sd tang tmdng ed thd len tdi 30%, tham ehi la 50%.
Lgi nhuan tii cae dich vu gia tri gia tang phat trien rat nhanh va didu dd khang dmh xu hudng cua thi tindng khi ma nhu eau sir dung cac dieh vu thoai dang chiing lai va nhu cau sir dung cac dich vu gia tii gia tang dang tang manh. Su hdi tir, cdng nghe 3G cung vdi IP TV, IP TV dl ddng .. .da md ra ca hdi Idn de phat tiien manh me cac loai dich vu eho thdng tin di ddng.
Tai lieu t h a m khao
III"FlexliSN and Cae Network", Nokia Siemens Netv\/orks, 2008
[2]. 3GPP w^ebsite www(.3gpp.org
[3]. Broadband - Netvs/ork and Service, ZTI Training, 2010.
[4]. 3G Services, Huwei Presentation, Sep 2010.
[5]. IP Trend, Cisco report, 2008.
[6]. De tai cap nha nude KC.01.14/06-10
4 2 I TAP CHI CNTT & TT KY 2 ( 1 2 . 2 0 1 0 )
