Mobile Station Handover Parameter Preparation
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Solution Overview
Problem
In radio communication systems, handovers between different networks result in prolonged disconnection periods due to the need to disconnect and reconnect radio connections, as mobile stations can only maintain one radio connection at a time, leading to inefficiencies in network switching.
Innovation Solution
A radio communication system and method where the mobile station transmits capability information to the first radio communication system before disconnection, allowing the second system to prepare parameters for the new connection, thereby shortening the disconnection period by performing security procedures beforehand.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the mobile station disconnects the first radio connection before connecting to the second radio communication system, then the handover can be performed, but the disconnection period is prolonged
Solution Approach 1:
The patent applies preliminary action by performing security procedures and parameter preparation in advance before the actual handover occurs. The mobile station transmits capability information to the first radio communication system before disconnecting, enabling the second system to prepare necessary parameters (such as security keys and authentication data) beforehand. This preliminary preparation significantly reduces the disconnection period during handover, as the mobile station can quickly establish the new connection without performing time-consuming security procedures after disconnection.
2Device complexity
If the mobile station maintains only one radio connection at a time, then the radio resource management is simplified, but the network switching efficiency is reduced
Solution Approach 1:
The patent uses the first radio communication system as an intermediary to facilitate the handover process. The mobile station transmits its capability information for the second radio communication system through the first system, which then forwards this information to the second system. This intermediary approach allows the mobile station to maintain a simple single-connection architecture while still enabling efficient network switching, as the necessary handover parameters and security credentials are prepared and transmitted through the intermediary system before the actual connection switch occurs.
Data Source
AI summary
A mobile station transmits mobile station capability information to a first radio communication system via a first radio connection set between the mobile station and the first radio communication system, before a disconnection of the first radio connection. The first radio communication system transmits the mobile station capability information to a second radio communication system, before the disconnection of the first radio connection. The second radio communication system transmits a parameter to the first radio communication system, before the disconnection of the first radio connection. The parameter is used in a second radio connection to be set between the mobile station and the second radio communication system. The first radio communication system transmits the parameter to the mobile station via the first radio connection, before the disconnection of the first radio connection.