HFC (hybrid fiber ntau-coaxial), lossis kev siv hluav taws xob sib txuam nrog kev siv hluav taws xob (HFROWAVE} Cov Kev Pab .
Nrog rau kev txhim kho kev lag luam ntawm kev lag luam thiab kev nce qib nce ntxiv, tso nkauj cable cable no tau yooj yim kom tau raws li kev thov.
Nyob rau hauv thaum ntxov 90s ntawm lub xyoo pua 20, nrog kev loj hlob thiab kev txhim kho cov khoom siv kho tshiab, thiab cov khoom siv hluav taws xob tawm ntawm cov hluav taws xob (HFC), uas muaj qhov muaj zog ntawm cov ntsuas hluav taws xob thiab muaj peev xwm loj.
Nrog kev txhim kho thev naus laus zis, HFC cov ntsiab lus tshiab, thaum siv cov kev pabcuam HFC uas tuaj yeem hu ua Broadband Kev sib txuas lus hauv kev sib txuas lus hauv Catv .
HFC feem ntau muaj li ntawm peb ntu: Fiber ntau lub pob tw, ntsuas hluav taws xob Ceg thiab cov neeg siv hluav taws xob kab ke los ntawm kev siv hluav taws xob ua ntej dhau los ua cov teeb liab kho tshiab thiab kis tau ntawm lub pob tw loj; Tom qab ncav cuag cov neeg siv khoom, lub teeb liab kho qhov muag tau hloov pauv ntawm HFC thiab xa tawm thaum ntxov lub cim hluav taws xob muaj kev sib txuas ntawm cov khoom siv hluav taws xob, thiab lub ntsiab lus hloov kho tshiab ua tiav tom qab nkag mus rau cov neeg siv khoom .
Cov kev pabcuam ntau uas HFC network tuaj yeem nqa:
-Analog thiab digital TV kis tau kev lag luam
- Cable Tshaj Tawm Ua Lag Luam
-Yog cov ntaub ntawv nkag mus
- Cov Kev Siv Cov Ntaub Ntawv
- IP Cov Kev Pabcuam Xov Tooj
-Video ntawm kev thov kev lag luam
HFC tseem ceeb:
1. Qhov yooj yim kis tau, yooj yim, ib khub xov tooj tuaj yeem xa tawm 1.5}}} teev ntawm TV cov kev kawm tib lub sijhawm
{{02. Cov yam ntxwv zoo, tsis tas yuav muaj vaj huam sib luag, tsis tas yuav muaj vaj huam sib luag hauv cable tv
3. Qhov kev sib kis tau me me, uas tuaj yeem txuas ntxiv qhov kev sib nrug deb ntawm cable TVification tsis pub dhau 25 Kilometers
4. Yuav tsis muaj kev hla dej ntawm cov khoom siv hluav taws xob, uas tsis ntshai ntawm kev sib cuam tshuam hluav taws xob zoo ntawm lub teeb liab.
{{05. piv nrog cov tsoos catv network yog tseem muaj kev sib txawv ntawm lub hnub qub lossis lub nplhaib qauv; Thib ob, Coaxial cable ib feem ntawm ceg thiab cov cab hlau ua haujlwm tau txais ib tsob ntoo lossis cov qauv tsheb npav; Thib peb, tag nrho cov network tau muab faib ua thaj chaw pabcuam raws li cov nodes kho qhov muag; Cov qauv network no tuaj yeem ua tau raws li cov cai ntawm muab cov neeg siv nrog ntau yam kev lag luam kev lag luam.
Qhov kev taw qhia thoob ntiaj teb ntawm hybrid fiber ntau Coaxial cable (HFC) tes hauj lwm:
{{01. Europe Phib Ntiaj Teb Hloov Kho Nws HFC Network Nrog Rau Downlink Bandwidth Los Ntawm Docsis 3 {} 1 Cov Hloov Kho Thiab Cov Hloov Kho Segmentation, thiab maj mam hloov mus rau Docsis 4.0, teeb kom ua tiav 10GBps network ceev. Harmonic teeb tsa cov ntaub ntawv rub tawm ntawm 14 GBPS hauv kev sib tw sib cuam tshuam, tsim cov peev xwm ntawm HFC tes hauj lwm.
{2. huawei's d-ccap architecture Ua kom muaj kev daws teeb meem zoo nkauj, thiab txhawb nqa cov khoom siv fiber ntau Kev them nyiaj yug 4K / 8K video thiab ntse lub nroog pabcuam .
{3.} cov tuam txhab zoo li Charter, Rogers, thiab lwm tus yog muaj peev xwm tshawb nrhiav hauv cov pob zeb txuas ntxiv dhau ntawm 4GHz {4 {}
4. Developed countries such as North America and Europe are focusing on promoting DOCSIS 4.0 upgrades, such as CableLabs in the United States, which achieved a downlink rate of 14Gbps to verify the feasibility of HFC competition with fiber optics.
Tsim cov teb chaws xws li Tuam Tshoj tau txhim kho nroog thiab cov koom tes nrog HFC Network Optimization thiab fiber ntau rau hauv lub tsev .
