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Broadband services

Broadband (Broadband) in the basic elα₹<ectronic and electronic cε•Ωαommunications, describes the renewal or'δ✔λ electronic circuit con<¥"γtains or can handle a wider frequencyβ© range at the same time. Broadband α→is a relative way of des™←↕cription. The larger the frequency '÷αrange, that is, the higher the b♣♥andwidth, the more information ©¥that can be transmitted. In te♣φrms of data transmission, the telephφ✘δ≤one line is also used as the signaδ§×₹l transmission medium, and fiber→‍©₽ optic cables are becomin✔¥®εg more and more popular. The m§♠odem can only send 64Kbps of data ¶ per second. Broadband ADSL and f→₽δiber modem can provide higher trans★¥mission rate composition:

Broadband network can be divided into ↓∏£three parts: transmission network, swiσ 'tching network, and access network. ♣×The related technologies of the£÷ broadband network are also‌↔♠‍ divided into three categories: tr" ansmission technology, switchi₽£ng technology, and access techno₽→®logy.

Broadband transmission network is a la₽✔rge-capacity optical fiber network b€↔ased on SDH (Synchronous Digσαital Series);

Broadband switching network is∞• a comprehensive business digi✔§Ωtal network using ATM (Asy♣↔nchronous Transfer Mode) tech∑<♥nology;

Broadband access networks ma¶₹±inly include optical fiber access, co♣>π✘pper wire access, hybrid fi✔✔φ"ber/copper wire access, 'γand wireless access.

DSL

DSL (Digital Subscriber Lin∑✔e digital subscriber loop) te‍Ω™Ωchnology is a broadband access tec♦₹hnology based on ordina₽γ₽σry telephone lines. It tra♣≠©πnsmits data and voice signals on¥✔ the same copper wire separately. The£ε data signals do not pass through tΩ♥he telephone exchange equipε♣ment, reducing the load of the tele'Ω✔phone exchange ; And no need ÷γ¥€to dial, always online, ₽™'it belongs to a dedicated line to a ♣≈ccess the Internet. DSL i≥↑ ∏ncludes ADSL, RADSL, HDSL, VDSL and s±£$"o on.
Cable Modem

Cable Modem, cable modem, al ☆•so known as cable modem, com§∞✘™monly known as cable cat, •ε English name Cable Modem, mainly uσ×≈∞ses cable TV network for data ↓✔transmission.
光(guāng)纖接入網

The ISDN integrated servic&•> e digital network is a digital te∞β<≥lephone network that is a combin₽↓ation of digital transmission ↕® and digital exchange. The Englis ♠αh abbreviation is ISDN. It can realiz♦‍$₹e the digital signal of th∑✔♣‍e user end into the net®↑♦work, and can provide end-to-end digiφ₹tal connection, so thaγδ↓¥t the same network can be use$∏d to carry various voice and non-voice ≤σservices.
光(guāng)纖接入網

Optical fiber access network §‍‌Ω(OAN) is an access network that use→" s optical fiber tran↔∑☆smission technology, δ♦that is, a communication ↔<✔system that uses all or part of the‍♦ optical fiber transmis↓$'sion between the local exchang§∑e and the user. Optic®•al fiber has the advan§×≠tages of bandwidth, long-distanc<&e transmission capabilitλ‌y, good confidentiality, and strong an®₽ti-interference ability. It is≈∞± the main implementation tec↕≤§hnology of the future access≥ ≠✘ network. The FTTX ac'✘±cess method is mostly use♥•d, in which the FTTH method ≥λ←refers to the fiber pa¶∞ss-through user's home, and g↑α•enerally only needs one user li♥≠→ ne. The economy is not good i∏✘ ≥n the short term, but it is a long-term♥‍ development direction and a good acces∑ s network solution. Broadband operator¶γ≥‌s: State-owned operators: China T↓π‍elecom, China Unicom, China ★‌↔‌Mobile (Tietong). ISPββ± operators: Hanwei C∑"¶ommunications, Wired Communications,‍α Dr. Peng, Great Wall Broad÷ band, SmarTone.
Broadband products:
1. Broadband business pr€≤©¥oducts of Chinese telecom enterprisεΩ"es (Urban Optical Network/EPON/IP MAN)♥φ
2. China Unicom's enterpris≥≥☆≥e broadband business pr™♠ oducts (Wo Kuai Express / W★₹o Kuai Express Extreme E↓©" dition / Wo Express)
3. Broadband business pr© <oducts of China Mobile Enterprise (©ΩMobile Enterprise Basic Edition/Mobil✔λe Enterprise Business Go↓β>'ld Leader)
4. Broadband value-added✘♥↕ services: BGP three-route export ↓¥‌broadband (the same line↓‌↓★ has three outlets of teleco≤£‍<mmunications, China U" ™nicom and mobile)
5. Broadband value-added ☆>services: export routing optimization s®↑γ®ervices