Integrated Access Network Optimization

With the continuous development of information technology, the application of integrated access networks has been very extensive, but we still need to pay special attention to the problem of terminal Bureau transformation. So I would like to introduce the solutions to these problems, and specific implementation solutions. The application of the NGN backbone network in China has been very successful, but it still belongs to the network-type business rather than the user-type business. In the layer-4 network architecture of NGN, the integrated access network layer is closest to the user. The trends of network convergence, business convergence, and broadband in evolution to NGN will be fully reflected in the development of access layer devices. The development of NGN can be used to develop end users and provide rich services to users only after it is extended to the local service network.

Factors to be taken into account in terminal Bureau Transformation

The transformation of the local bureau is a key link for the end user to provide the NGN Service. The transformation of the local bureau should begin from the perspective of protecting existing investment and improving resource utilization, at the same time, to meet network development and user business needs, the integrated access network equipment should have the following four capabilities:

1. comprehensive Service bearer capabilities-users' needs are undergoing dramatic changes, the demand for voice/broadband/video playback services is evolving from a speech-oriented business with value-added business and broadband business. In particular, major customers with high value-added need operators to provide them with "one-stop" services including voice, data, and multimedia applications.

2. Support/wire speed of the triple play business-the triple play business is the main driving force for the sustained development of the broadband business and the next highlight of the telecom industry. According to a market survey conducted by HeavyReading on 250 top telecom operators around the world, 65% of telecom operators have deployed or plan to deploy TriplePlay services.

3. Capability of evolution to NGN network-the integrated access network device should be able to smoothly evolve to NGN network and meet the development trend of the network.

4. Protection of existing investment capabilities-PSTN remains the foundation of fixed network operators, and traditional voice remains the main business revenue source of telecom operators. Facing the huge PSTN network resources, it is also important for fixed network operators to consider how to protect their current network assets.

Integrated Access Network Solutions

Shanghai Bell Alcatel's Integrated Access Network product series came into being in this context. It not only supports the traditional PSTN speech service, but also supports evolution to NGN, and can provide powerful broadband functions, it provides powerful hardware support capabilities for devices to smoothly deploy TriplePlay services for carriers and maximizes the protection of existing investment by operators.

Shanghai Bell Alcatel provides targeted integrated access network optimization solutions for different network conditions of users:

1. Rebuild the original Integrated Access Network
This paper proposes a low-cost evolution and optimization solution for NGN network transformation. The gateway board is added to the traditional PSTN network switching node to implement the gateway function. This completes the smooth evolution from existing telephone users to NGN, and protects the system resources of operators and can continue to be used. This solution has outstanding applications in Shanghai Telecom.

2. Integrated Access Networks dominated by voice services
Make full use of the wide and narrow band integrated access network system resources of the current network to build a telecom-level smart integrated service access network, quickly providing narrowband voice and broadband triple playback services. The system can make full use of widely used S12 boards and related functional boards to fully protect existing investment; non-blocking system architecture; modular system architecture to meet user needs to the maximum extent, the wide and narrow band ratio can be adjusted based on the user's actual needs. The smooth and flexible evolution mode of NGN is provided.

3. Integrated Access Network dominated by triple play
The next-generation Integrated Service Access Network platform provided by Shanghai Bell Alcatel Provides bandwidth support for operators to deploy triple playback services. The next-generation Integrated Business System provides users with a variety of business services: narrowband voice POTS and ISDN services (BRI/PRI) multi-ADSL, LAN, and PON and WiMAX services will be extended in the future. Non-blocking system architecture (1 GB to user board, 24 Gbps switching capacity/frame); upstream interface bandwidth up to 7 Gbps, support up to 1024 multicast channels; hierarchical business intelligence, service-based QoS policies. Each user board, control panel, and upstream interface supports multiple priority queues and strict priority scheduling algorithms. The multicast control and distribution functions are built into the system.

Summary

To sum up, the next-generation Integrated Access Network products of Shanghai Bell Alcatel fully consider the current network situation and business needs of users in the Construction of equipment performance and network, it truly reflects the trends of network convergence, business convergence, and broadband in the evolution of the NGN network.

1. Common Access Network technical Practical Manual
2. Comprehensive broadband access technology knowledge Manual
3. A Learning Guide for Wireless Broadband Access Technology
4. Comprehensive comparison of various Wireless Access Technologies
5. Study Notes on Remote Access Technology