Dual Mode Mobile Terminal Network Attachment Switching
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Solution Overview
Problem
Current solutions for connecting residential mobile users to wireless communication networks are expensive for both operators and subscribers, as they require new equipment and do not effectively address the lack of concern for full mobility and seamless call continuation for home-based calls.
Innovation Solution
A dual mode mobile terminal with a mechanism to switch between mobile and fixed attachment modes, allowing detection of an operative transfer state to detach from the mobile mode and attach to a fixed mode, using a cradle connected to DSL for voice over IP, bypassing the radio access network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If new equipment is installed in the network (UMA, WiFi, Pico- or Femto base transceiver stations) to enable residential mobile users to connect to wireless communication networks, then connectivity and mobility are improved, but installation cost and device complexity increase significantly
Solution Approach 1:
The mobile terminal is designed to support multiple attachment modes (mobile and fixed) within a single device, allowing it to function both as a mobile device connecting via radio access network and as a fixed device connecting via DSL/Internet. This multi-functionality eliminates the need for separate equipment installations while providing both mobility and fixed connectivity options.
Solution Approach 2:
Instead of installing new network infrastructure equipment to enable fixed attachment mode, the invention inverts the approach by enabling the mobile terminal itself to initiate and manage the fixed attachment mode connection to the core network directly, bypassing the need for additional base transceiver stations or access points.
2Ease of operation
If new equipment is installed in the residential area (Pico- or Femto base transceiver stations) to enable fixed attachment mode, then seamless access is improved, but installation cost and ease of manufacture worsen
Solution Approach 1:
The invention extracts the fixed attachment mode functionality from the network infrastructure side and relocates it to the mobile terminal side. The terminal itself performs the attach/detach operations and manages the connection state, eliminating the need for Pico- or Femto base transceiver stations in the residential area while still providing seamless access capability.
Solution Approach 2:
The mobile terminal autonomously manages its own attachment mode transitions, performing self-service by detecting the operative transfer state and automatically executing the detach from mobile mode and attach to fixed mode without requiring external infrastructure support or manual configuration.
3Speed
If full mobility and seamless call continuation are implemented through new infrastructure, then mobility is improved, but installation cost increases
Solution Approach 1:
The system dynamically switches between mobile attachment mode (providing full mobility via radio access network) and fixed attachment mode (providing cost-effective connectivity via DSL/Internet). The mobile terminal can transition between these modes based on operational needs, maintaining mobility capability when required while reducing costs during fixed-location usage.
Data Source
AI summary
The present invention is directed to connecting a dual mode mobile terminal to a wireless communication network and includes connecting a dual mode mobile terminal to a wireless communication network using a mobile attachment mode or a fixed attachment mode. This includes detecting an operative transfer state of the dual mode mobile terminal triggering a transfer from the mobile attachment mode to the fixed attachment mode, and achieving a mobile attachment mode detach from the wireless communication network in the mobile attachment mode upon detection of the operative transfer state. This also includes achieving a fixed attachment mode attach to the same wireless communication network subsequent to execution of the mobile attachment mode detach to initiate the fixed attachment mode.