On the current broadband access network planning, design and applications
Abstract This paper on the business needs of different users to predict, as described a network of basic principles that should be taken, set the location of the principle of tandem nodes and node bandwidth allocation principles. Introduces its network structure and network applications.
Keywords broadband access network design network planning
With the rapid development of Internet, people distance learning, telemedicine, video conferencing and other multimedia applications demand a substantial increase in e-commerce is a typical hot spot network applications. At the same time, network bandwidth and the rate of people also put forward higher requirements, prompted by the low speed to high speed network, from sharing to exchange, from narrowband to broadband direction rapidly. Current terms for the backbone, a variety of broadband networking technologies become more sophisticated and improved bandwidth of WDM systems has reached 400Gbit / s, IPoverATM, IP overSDH, IPoverWDM (DWDM) technologies already in use, and proposed Establishment of an optimized optical backbone network, the backbone of the network can be said to carry a variety of broadband services has been ready. However, users in the communication network and the access network is underdeveloped in the access network technology to become a bottleneck restricting the development of communication.
Broadband access network is the service nodes and client devices, provides users with telecommunications services necessary to implement the carrying capacity transmission systems. At present, the access layer technology solutions to optical access network-based, copper supplemented to provide users with high quality to facilitate integrated services. But the broadband optical access network is a business, technology, cost sensitive areas, and the investment proportion, a long construction period. Therefore, we must integrate the current over existing telecommunications networks and the specific situation of national economic development, general layout, network structure, scale and capacity, give full consideration to construction costs and network flexibility to work out a reasonable broadband access network planning is particularly important.
, How to solve the bottleneck of large-scale widening network access problems for the world's 1.05 billion available to provide ultra broadband access lines, has been the focus of the current network technology. Bottleneck is relative, a pair of metal lines can provide sufficient capacity to support two-way conversation, but the traditional copper wire can provide bandwidth, high-performance data network and the Internet is that there are some reluctance, the user not only want talk with each other, and hope to see each other through video conference system of the virtual scene, so the traditional access technologies (access, access routing) for high performance requirements in order to break through the bottleneck of network access links. Local loop bottleneck is due to a lower bit rate currently available result. In fact, in addition to local loop bandwidth limitations, the current data network technology has been sufficient to ensure the provision of moving images and other high-bandwidth services.
A user classification and business forecast
As unbalanced development among regions, different cities in the metro construction of broadband services provided by different platforms, depending on the urban characteristics, development, service focus and so, while business mainly depends on the needs of the object and the content of key project construction. According to business needs of different types of objects that the user will be divided into the following categories of broadband users type:
1. Government agencies Users Government agencies is an important market segment, because of their special status, a greater impact on society, their demand for broadband access is mainly derived from the "Government Online Project" and the office of information technology. With the acceleration of information technology industries, metro computer networking business needs more urgent.
2. Financial securities Users Financial securities user is a major carrier customers, primarily in data communications, computer networking and other kinds of interactive multimedia services, for the financial, banking and securities companies to provide private network services, to achieve banks, credit unions The deposit and withdrawal services.
3. Intelligent Building Users Intelligent buildings, office towers, commercial customers, such as the Group's most intensive users where users of these groups generally large carrier customers, the Group's sensitivity to the rates below the home user, the user needs is to provide comprehensive, reliable and secure network services, broadband high-speed Internet access, LAN interconnection, and other broadband access network based services, such as high-speed data transmission, data centers, video conferencing has broad market prospects, these users Similarly there will be demand for IP phones.
4. Residential Users
As people speed up the process of social information in the intelligent community, life estate construction and residential broadband information carriers has become the a major focus of competition. For the telecom operators, this is value-added business development point of intervention is also an entry point for new areas of the telecommunications business. In the residential quarters of broadband information technology, to provide users with high-speed Internet access business. Community Information Community Services, including community management, e-commerce, VOD, transaction processing services.
Keywords broadband access network design network planning
With the rapid development of Internet, people distance learning, telemedicine, video conferencing and other multimedia applications demand a substantial increase in e-commerce is a typical hot spot network applications. At the same time, network bandwidth and the rate of people also put forward higher requirements, prompted by the low speed to high speed network, from sharing to exchange, from narrowband to broadband direction rapidly. Current terms for the backbone, a variety of broadband networking technologies become more sophisticated and improved bandwidth of WDM systems has reached 400Gbit / s, IPoverATM, IP overSDH, IPoverWDM (DWDM) technologies already in use, and proposed Establishment of an optimized optical backbone network, the backbone of the network can be said to carry a variety of broadband services has been ready. However, users in the communication network and the access network is underdeveloped in the access network technology to become a bottleneck restricting the development of communication.
Broadband access network is the service nodes and client devices, provides users with telecommunications services necessary to implement the carrying capacity transmission systems. At present, the access layer technology solutions to optical access network-based, copper supplemented to provide users with high quality to facilitate integrated services. But the broadband optical access network is a business, technology, cost sensitive areas, and the investment proportion, a long construction period. Therefore, we must integrate the current over existing telecommunications networks and the specific situation of national economic development, general layout, network structure, scale and capacity, give full consideration to construction costs and network flexibility to work out a reasonable broadband access network planning is particularly important.
, How to solve the bottleneck of large-scale widening network access problems for the world's 1.05 billion available to provide ultra broadband access lines, has been the focus of the current network technology. Bottleneck is relative, a pair of metal lines can provide sufficient capacity to support two-way conversation, but the traditional copper wire can provide bandwidth, high-performance data network and the Internet is that there are some reluctance, the user not only want talk with each other, and hope to see each other through video conference system of the virtual scene, so the traditional access technologies (access, access routing) for high performance requirements in order to break through the bottleneck of network access links. Local loop bottleneck is due to a lower bit rate currently available result. In fact, in addition to local loop bandwidth limitations, the current data network technology has been sufficient to ensure the provision of moving images and other high-bandwidth services.
A user classification and business forecast
As unbalanced development among regions, different cities in the metro construction of broadband services provided by different platforms, depending on the urban characteristics, development, service focus and so, while business mainly depends on the needs of the object and the content of key project construction. According to business needs of different types of objects that the user will be divided into the following categories of broadband users type:
1. Government agencies Users Government agencies is an important market segment, because of their special status, a greater impact on society, their demand for broadband access is mainly derived from the "Government Online Project" and the office of information technology. With the acceleration of information technology industries, metro computer networking business needs more urgent.
2. Financial securities Users Financial securities user is a major carrier customers, primarily in data communications, computer networking and other kinds of interactive multimedia services, for the financial, banking and securities companies to provide private network services, to achieve banks, credit unions The deposit and withdrawal services.
3. Intelligent Building Users Intelligent buildings, office towers, commercial customers, such as the Group's most intensive users where users of these groups generally large carrier customers, the Group's sensitivity to the rates below the home user, the user needs is to provide comprehensive, reliable and secure network services, broadband high-speed Internet access, LAN interconnection, and other broadband access network based services, such as high-speed data transmission, data centers, video conferencing has broad market prospects, these users Similarly there will be demand for IP phones.
4. Residential Users
As people speed up the process of social information in the intelligent community, life estate construction and residential broadband information carriers has become the a major focus of competition. For the telecom operators, this is value-added business development point of intervention is also an entry point for new areas of the telecommunications business. In the residential quarters of broadband information technology, to provide users with high-speed Internet access business. Community Information Community Services, including community management, e-commerce, VOD, transaction processing services.
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