Pocket add-drop multiplexer and data transmission method thereof
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUAWEI TECH CO LTD
- Publication Date
- 2010-06-23
- Estimated Expiration
- Not applicable Β· inactive patent
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Abstract
Description
technical field
[0001] The invention relates to the technical field of mobile communication, in particular to a packet add-drop multiplexing device and a data transmission method of the packet add-drop multiplexing device. Background technique
[0002] The concept of Add-Drop Multiplexer (ADD / DROP Multiplexer, hereinafter referred to as: ADM) was first realized by Synchronous Digital Hierarchy / Synchronous Optical Network (Synchronous Digital Hierarchy / Synchronous Optical Network, hereinafter referred to as: SDH / SONET) technology, which is based on time division A crossover matrix of a multiplexing (Time Division Multiplex, hereinafter referred to as: TDM) circuit is used to implement add (ADD) and drop (DROP) functions of data services. With the development of data services, SDH has evolved to an SDH-based multi-service transport platform (Multi-Service Transport Platform, hereinafter referred to as: MSTP), and data services are adapted to virtual transport channels (Virtual...