Active Handover in HRPD Systems via Virtual Connection Termination
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Solution Overview
Problem
The handover process between LTE and HRPD systems often results in long-time interruptions of service and reduced processing efficiency due to existing virtual connections or connection establishment processes, leading to service disruptions and inefficiencies in the access terminal and access network.
Innovation Solution
An active handover method where the terminal disconnects or terminates existing virtual connections and establishes a High Rate Packet Data air interface connection by managing the HRPD Signaling Adaptation Protocol module states, ensuring it transitions to a closed state to facilitate seamless handovers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a virtual connection exists or is being established during handover, then the access terminal can maintain connection management, but the access network will refuse the HRPD air interface connection establishment request, causing service interruption
Solution Approach 1:
The terminal performs preliminary actions by disconnecting existing virtual connections or terminating their establishment processes before initiating the HRPD air interface connection establishment. This preliminary cleanup ensures that no conflicting virtual connections exist when the handover request is processed, allowing the access network to accept the connection establishment request and avoiding service interruption.
2Reliability
If the terminal waits for virtual connection establishment to complete before handover, then connection management is maintained, but processing efficiency is reduced due to long-time interruption
Solution Approach 1:
The terminal performs preliminary actions by disconnecting existing virtual connections or terminating their establishment processes before initiating the HRPD air interface connection establishment. This preliminary cleanup ensures that no conflicting virtual connections exist when the handover request is processed, allowing the access network to accept the connection establishment request and avoiding service interruption.
3Stability of the object's composition
If the terminal maintains existing virtual connections during handover, then connection continuity is preserved, but data processing becomes disordered and service interruption increases
Solution Approach 1:
The invention extracts and removes the problematic virtual connections from the system before handover. By identifying and disconnecting existing virtual connections or terminating their establishment processes, the patent eliminates the source of data processing disorder. This extraction allows the handover to proceed with a clean connection state, preserving true connection continuity while enabling efficient data processing.
Data Source
AI summary
An active handover method and terminal based on the HRPD system are disclosed by the present invention. The method comprises that: a terminal receives an active handover command, wherein if a virtual connection has existed, the virtual connection is disconnected; and if a virtual connection is being established, the establishment process of the virtual connection is terminated; and High Rate Packet Data air interface connection is established. With the method, processing of the access terminal and the access network is specified, and the problem of long-time interruption in the service of the terminal is solved, processing efficiency of the access terminal and the access network can be improved, thereby improving the processing efficiency of the whole system.