PS Handover Failure Cause Distinction in Mobile Networks
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Solution Overview
Problem
Current PS handover technologies cannot distinguish between different causes of handover failures, leading to inadequate handover control and resource allocation during the handover process.
Innovation Solution
A method and system that allow terminals to determine specific failure cause values for handover failures and send them to the network, enabling the network to perform corresponding handover controls based on these values, thereby distinguishing between different failure causes and optimizing resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the network uses a unified handover failure handling mechanism, then the system complexity is reduced, but the ability to distinguish between different failure causes is lost
Solution Approach 1:
The patent segments the handover failure handling process by introducing different failure cause values (first failure cause value for no response, second failure cause value for other failures) to distinguish between different failure types. This segmentation allows the network to treat different failure scenarios differently while maintaining a relatively simple overall structure.
Solution Approach 2:
The patent uses failure cause values as intermediary elements that carry information about the failure type between the terminal and network. These failure cause values act as mediators that enable the network to understand the specific failure scenario without requiring complex communication protocols.
2Measurement precision
If the terminal sends detailed failure cause information to the network, then the handover control precision is improved, but the signaling overhead increases
Solution Approach 1:
The patent uses compact failure cause values (first failure cause value and second failure cause value) that are simple and easy to transmit. These lightweight indicators convey essential failure information without requiring complex data structures, minimizing signaling overhead while maintaining sufficient information for network control.
Solution Approach 2:
The patent changes the parameter representation by using discrete failure cause values instead of detailed failure descriptions. This parameter transformation reduces the amount of information that needs to be transmitted while still providing sufficient distinction between failure types for effective network control.
3Productivity
If the network performs detailed analysis of handover failures, then the resource allocation optimization is improved, but the processing time increases
Solution Approach 1:
The patent prepares different handling procedures in advance for different failure types (no response failure vs. other failures). By pre-defining these handling mechanisms, the network can quickly respond to failures without needing to analyze complex failure reports in real-time, thus reducing processing time while maintaining optimization capability.
Solution Approach 2:
The patent transforms detailed failure analysis into parameter-based decision making by using failure cause values as input parameters for network control decisions. This parameter transformation enables fast processing while still achieving optimized resource allocation, as the network can quickly match failure cause values to appropriate handling procedures.
Data Source
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AI summary
The present invention discloses a method and a system for PS handover processing. During a PS handover process of mobile communications, when a handover failure occurs, a terminal determines a different failure cause value according to a different cause of the handover failure. The invention further discloses a terminal and a network for PS handover processing. With the invention, a network can definitely distinguish among handover failures due to different failure causes, so that a reasonable handover control may be performed according to different handover failures, and resource allocation may be optimized during the handover process. Thus, the technical problems of the prior art may be solved that handover failures due to different failure causes cannot be distinguished and the network cannot perform a reasonable handover control according to different failure causes. Additionally, the objective that different handover failures should have corresponding appropriate failure cause values which can not be realized by the current protocols may be achieved by the invention.