Restricted Local Access Point Handover Control
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Solution Overview
Problem
Existing mobile stations require dual mode operation to switch between cellular and cordless networks, making them costly and inconvenient for users who want to use their ordinary mobile stations both at home and in cellular networks without needing a special dual mode device.
Innovation Solution
A method and device that allow access to a restricted local access point in a wireless network for a limited set of registered mobile stations, using a control device with a radio communication unit to attract and authenticate mobile stations, granting access only to registered devices while rejecting others, thus enabling the use of an ordinary mobile station for both local and main network access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If dual mode operation is implemented to allow mobile stations to switch between cellular and cordless networks, then network accessibility is improved, but device cost and complexity increase
Solution Approach 1:
The network is segmented into a main cellular network and separate restricted local access points. Each access point operates independently with its own control device, allowing mobile stations to access local networks without requiring dual mode capabilities. The segmentation isolates the cordless-like functionality to specific locations rather than requiring every device to support both modes.
Solution Approach 2:
A control device acts as an intermediary between mobile stations and restricted local access points. This intermediary manages authentication and access control, enabling ordinary mobile stations to communicate with local access points through standardized cellular protocols without needing specialized dual mode hardware or software.
2Ease of operation
If unrestricted access is provided to local access points, then ease of use is improved, but network occupancy and unauthorized access increase
Solution Approach 1:
Mobile stations are pre-registered with control devices before attempting to access restricted local access points. The control device stores authentication information for authorized stations in advance, enabling automatic verification during the attachment process. This preliminary registration ensures that only authorized stations can access local networks while maintaining simple operation for users.
Solution Approach 2:
The control device provides feedback to mobile stations during the attachment process, accepting attachments from registered stations and rejecting those from unregistered stations. This automated feedback mechanism ensures proper access control without requiring user intervention, maintaining ease of use for authorized users while preventing unauthorized access.
Data Source
AI summary
The invention concerns methods, a device and computer program products for simplifying handover back to a restricted local access point from an unrestricted global access point as well as to a device implementing a restricted local access point for provision in a wireless network and a wireless network. In the network a restricted local access point hands over a mobile station to an unrestricted global access point and provides data enabling the restricted local access point to be identified as a candidate access point. A device for simplifying handover back determines that the restricted local access point is a candidate for further handover based on this data and informs the mobile station about the restricted local access point via the unrestricted glob access point. Thereby hand over may be considered also to the restricted local access point in addition to other surrounding access points.