DSL-Radio Network Interconnection via Wireless Adaptors
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Solution Overview
Problem
Current radio communication networks face high construction and operational costs due to the limitations of E1 or T1 transmission technologies, which restrict bandwidth and hinder the development of data services, especially with the increasing demand for higher data rates in 3G and 2.5G networks.
Innovation Solution
The integration of DSL technology with radio communication networks through the use of Wireless Adaptors (WA1 and WA2) that facilitate interconnection at specific reference points, allowing for the utilization of DSL networks to enhance bandwidth and reduce costs by leveraging existing DSL infrastructure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If E1 or T1 transmission technology is used for BS transmission, then network reliability is maintained, but transmission bandwidth is limited and construction costs increase
Solution Approach 1:
The patent changes the transmission medium parameter from traditional E1/T1 copper lines to DSL technology, enabling higher transmission rates (up to 2Mbps or more) while maintaining connection reliability through established DSL protocols and error correction mechanisms
Solution Approach 2:
The patent introduces a DSL Access Multiplexer (DSLAM) as an intermediary device that converts between E1/T1 signals and DSL signals, allowing the base station to connect to the network through DSL infrastructure while maintaining compatibility with existing E1/T1 based radio access networks
2Stability of the object's composition
If E1 or T1 transmission technology is used for BS transmission, then network stability is maintained, but construction costs increase
Solution Approach 1:
The patent makes the DSLAM device multi-functional by enabling it to handle both traditional E1/T1 connections and DSL connections simultaneously, allowing existing DSL infrastructure to be leveraged for base station backhaul while maintaining support for legacy radio access network equipment
Solution Approach 2:
The DSLAM acts as an intermediary that bridges the gap between traditional E1/T1 based base stations and modern DSL infrastructure, enabling cost-effective deployment by utilizing existing DSL network assets while maintaining compatibility with established radio access technologies
3Productivity
If DSL technology is used for BS transmission, then transmission bandwidth increases, but device complexity increases
Solution Approach 1:
The patent introduces a DSL Access Multiplexer (DSLAM) as an intermediary device that handles the complexity of DSL signal processing, encoding, and decoding, while the base station itself requires minimal modification - only adding a DSL interface card or module to establish the connection
Solution Approach 2:
The patent combines the DSL interface functionality with the existing base station equipment by integrating a DSL modem or interface card into the base station, allowing the base station to simultaneously handle radio frequency signals and DSL transmission signals through a unified device architecture
Data Source
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AI summary
A method and system for interconnecting a DSL network and a radio communication network are disclosed. The DSL network carries data transmitted in the radio communication network so that the radio communication network and the DSL network are interconnected. The xDSL is adopted to perform the base station transmission. The scheme may function as a radio extension of the wire access of the DSL network and is suitable to fixed wireless, nomadic connectivity, laptop and mobile access applications. Therefore, the present invention provides a new evolution path for DSL network operators concerning radio network development. Compared with the E1 or T1 transmission method of the prior art, the present invention significantly improves the base station transmission rate; moreover, the xDSL access is convenient with rich transmission resources and low transmission cost.