Failure Information Routing via Tracking Area Code
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Solution Overview
Problem
In scenarios where the base station where a failure occurs and the base station where the failure information is reported belong to different core network devices, or in inter-system or intra-Radio Access Technology (RAT) scenarios, it is impossible for the network to directly route failure-related information to the original cell where the failure occurred.
Innovation Solution
The proposed solution involves the User Equipment (UE) recording failure-related information, including Tracking Area (TA) information about the first network side device where the failure occurs, and reporting this information to the second network device. The second core network device determines the first core network device based on the TA information, allowing the failure-related information to be transmitted to the first network side device through the first core network device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the network uses only Cell Global Identifier (CGI) for routing failure-related information, then the routing mechanism is simple, but it becomes impossible to route information when base stations belong to different core network devices or in inter-system scenarios
Solution Approach 1:
The patent introduces Tracking Area Code (TAC) as an additional dimension to the routing information, complementing the existing CGI. This dimensional expansion enables the network to identify and route failure-related information to the correct core network device and base station across different network scenarios, including inter-system and inter-core network device cases, without overcomplicating the overall routing mechanism.
Solution Approach 2:
The patent introduces a new information element (Tracking Area Code) that acts as an intermediary identifier to bridge the gap between different core network devices and systems. This intermediary enables the network to locate the original base station where failure occurred, even when the reporting base station and original base station belong to different core network devices or systems.
2Loss of time
If the UE reports failure-related information immediately, then the information freshness is high, but the signaling overhead increases
Solution Approach 1:
The patent implements preliminary action by having the UE indicate the availability of failure-related information in advance through uplink signaling (such as connection establishment completion messages). This preliminary indication allows the network to prepare for information retrieval without requiring immediate full information transmission, thereby reducing signaling overhead while maintaining information freshness.
Solution Approach 2:
The patent implements a feedback mechanism where the UE provides availability indication feedback to the network about stored failure-related information. The network then uses this feedback to determine whether to request the actual failure information, creating a controlled feedback loop that balances information freshness with signaling overhead reduction.
Data Source
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AI summary
The present disclosure provides an information reporting method, an information processing method, a UE, a network side device and a core network device. The information reporting method includes: recording failure-related information generated when a failure occurs in the UE, the failure-related information including tracking area information about a first network side device where the failure occurs in the UE; and reporting the failure-related information to a second network device to which the UE accesses.