Posted by admin | Posted in Sights...Mainly | Posted on 26-03-2010
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Fiber Optic Sight
Return Weapon: How to build to meet the needs of the optical transmission network 3G
Regardless of whether the 3G license issuance in the near term, China's 3G network construction have been "imminent." It is reported that Ministry of Information Industry has decided to expand the TD-SCDMA test the size of the scale, the second round of testing is expected to begin from March 2007, a period of 9 to 12 months. Striking is the scale of the test will be extended to Tianjin, Shanghai, Qingdao, Qinhuangdao, Shenyang, Hong Kong, the six Olympic co-host cities, test network will set up in accordance with the scale of commercial networks; the other, according to some media reports, this test China Mobile will be featuring, and China Mobile intends to Guangzhou, Shenzhen and other southern cities while building a more prosperous TD-SCDMA network to the Olympic Games in 2008 held, in the main market 3G services. Thus, even if China does not release 3G licenses for the time being, 3G network construction will also be rolled out, and operators to be able to launch 3G services during the Olympic Games successfully, the corresponding construction of the auxiliary will also be in full swing.
For any business network-based optical network, the 3G's role is to carry 3G services. Known as base stations for backhaul network, that is, the transmission from the NodeB to the RNC, RNC to a core optical network transmission requires the participation and interaction between the core network is optical network task. Well, the upcoming 3G network construction will be brought to the optical network market which opportunities and challenges? The areas of return in the base station, in the face and other competing wireless technologies, optical transmission of advantages? And how should meet the optical transmission
3G network deployment demands? News Wind Communications: 3G transmission network should be facing many challenges
3G network construction to the optical networking market will bring great opportunities, summarized as follows:
* 3G mobile network construction will significantly increase the transmission bandwidth
With existing 2G and 2.5G networks, compared with 2G if the 3G or 2.5G network you want to provide the same coverage and provide the same quality of service, you need to deploy more base stations. At the same time, the bandwidth required for each 3G base stations also increased significantly, from GSM to each base station 1 ~ 2E1 than 4E1. 3G mobile transmission networks has greatly increased the demand for network bandwidth and speed up the deployment of optical transport network speed.
* 3G network for the transmission network reliability and flexibility requirements driven transport network technology leap in the quality of
From traditional SDH technology, to the MSTP, RPR to the ASON technology, from traditional chain network, ring protection, to the Grid network protection. Not only greatly enhance the survivability of the network, but also greatly promoted the development of transport network technology.
At the same time, 3G traditional optical network technology has also brought many challenges:
One of the challenges, the future of all IP-based 3G network development trend of the challenges: how to achieve from the traditional circuit-based transmission to the circuit and IP convergence to the final of the All IP-based network evolution, on traditional transmission network technology has brought great challenges, but also bring development opportunities! MSTP, RPR, ASON, OADM and other technology is the development of transmission networks to adapt to the birth of the new technology.
Second challenge, 3G for network planning and coverage requirements, the deployment of transmission networks for a higher accuracy requirements.
Third challenge, fast network implementation is a network of optical transport network built facing a challenge: the deployment of optical transport networks depends on the optical fiber laying conditions. Resources without good fiber optical transmission network will significantly affect the implementation of the fast network.
And wireless and other technology compared to optical network technology for its high reliability, high bandwidth are widely used. Optical transport network effectively to avoid the transmission line of sight wireless transmission request, while a transmission capacity, high stability of the system, network flexibility, low cost and other advantages, no doubt 3G network operators to deploy the best choice.
Operators to deploy 3G in the optical transmission network shall be constructed according to the specific practical requirements of the network transmission network. It is recommended that the network layer using different network topologies: star can be used to access networks, chain mesh or ring network topology; convergence layer network with ring; the core layer is a grid network to increase the survival of protected sex. By EPON, MSTP, RPR, OADM and other new technology ASON 3G transmission network construction.
As optical access equipment suppliers, hearing the wind optical communications network for the 3G launch a series of access transmission characteristics of solutions:
(1) through the passive optical network system EPON F-homer family products, the core node base stations Node B transmission between the HUB or RNC, with star network topology. The program saves a lot of fiber resources to speed up the implementation of the speed of the network, while for the future development trend of 3G all IP technology to provide a reliable guarantee and bandwidth guarantee.
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I am an expert from Chinese Manufacturers, usually analyzes all kind of industries situation, such as vantec case fan , foxconn cpu fan.
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