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NE40E V800R010C00 Feature Description - WAN Access 01

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Applications for TDM

Applications for TDM

Applicable Scenario 1

Figure 7-13  Applicable Scenario 1

Scenario description

After TDM services from 2G base stations are converged on the E1 or T1 interface on PE1, TDM packets are encapsulated into PSN packets that can be transmitted on PSNs. After reaching downstream PE2, PSN packets are decapsulated to original TDM packets and then the TDM packets are sent to the 2G convergence device.

Advantages of the solution

In the solution, multiple types of services are converged at a PE on the PSN. The solution effectively saves original network resources, uses less PDH VLLs, and facilitates the deployment of sites and the maintenance and administration of multiple services.

Application Scenario 2

Figure 7-14  Application Scenario 2

Scenario description

TDM services of different office areas, residential areas, schools, enterprises, and institutions can be accessed by a local PE through E1/T1 links. Heavy TDM services can be carried through CPOS interfaces.

Advantages of the solution

The solution saves the rent for VLL because TDM services for enterprises are access by a local PE. In addition, the solution can choose access types flexibly and plan networking properly.

Applicable Scenario 3

Figure 7-15  Applicable Scenario 3

Scenario description

In this solution, a network can carry 2G, 3G, and fixed network services concurrently. This solution physically integrates the transmission of different types of services but keeps the management of them independently. Therefore, it provides different service bearer solutions for different operators on the same network.

Advantages of the solution

In the solution, different services can be carried on the same network and therefore the resource utilization is improved and maintenance cost is reduced.

Applicable Scenario 4

Figure 7-16  Applicable Scenario 4

Scenario description

Services of different timeslots on different sites can be accessed by the PSN through local E1. The PE on the convergence side binds different timeslots of different E1s to one E1 and then encapsulates bound timeslots and other CE1/E1 services as SDH data, and finally sends encapsulated packets to the base station controller (BSC) through the CPOS interface.

Advantages of the solution

The solution channelizes E1 services, transparently transmits E1 services, multiplexes timeslots of multiple E1s to one E1, and manages services of multiple E1s/CE1s through the same CPOS interface.

Updated: 2018-07-04

Document ID: EDOC1100027168

Views: 12111

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