Dual-Connectivity Reestablishment Cause Handling
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Solution Overview
Problem
In communication networks, especially those employing dual-connectivity modes, existing technologies face challenges in efficiently managing reconfiguration failures, leading to increased signaling overhead and potential user performance degradation due to incomplete or inaccurate cause values for reestablishment procedures.
Innovation Solution
The proposed solution involves processing circuitry and memory configurations in communication network control elements to receive and process reestablishment requests, deciding whether to maintain or remove dual-connectivity mode, and transmitting appropriate indications to source network control elements, utilizing specific cause codes and indicators to optimize resource management and reduce signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dual-connectivity mode is maintained after reconfiguration failure, then user performance is improved, but signaling overhead increases
Solution Approach 1:
The patent changes the state parameter of dual-connectivity mode from binary (maintain/remove) to conditional (maintain with cause value indication). By introducing cause value parameters that categorize reconfiguration failures, the system can selectively maintain dual-connectivity mode only when appropriate, thereby improving user performance while avoiding unnecessary signaling overhead in cases where mode removal is more suitable.
2Loss of information
If dual-connectivity mode is removed after reconfiguration failure, then signaling overhead is reduced, but user performance degrades
Solution Approach 1:
The patent introduces cause value parameters that enable differentiated handling of reconfiguration failures. By categorizing failures into specific causes, the system can make informed decisions about whether to maintain or remove dual-connectivity mode, thus reducing signaling overhead only when appropriate while preserving user performance when the mode should be maintained.
3Device complexity
If reconfiguration failure cause values are incomplete or inaccurate, then device complexity is reduced, but measurement precision deteriorates
Solution Approach 1:
The patent segments the reconfiguration failure identification into distinct cause value categories. By dividing the failure analysis into specific, predefined cause types, the system achieves precise failure identification without requiring complex custom analysis logic, thus maintaining low device complexity while improving measurement precision of failure cause identification.
Data Source
AI summary
An apparatus including at least one processing circuitry, and at least one memory for storing instructions to be executed by the processing circuitry, wherein the at least one memory and the instructions are configured to, with the at least one processing circuitry, cause the apparatus at least: to receive and process a communication connection reestablishment request from a communication element communicating in a multi-connectivity mode, to decide, in case a communication connection with the communication element is established, whether or not the multi-connectivity mode of the communication element is kept, and to cause a transmission of an indication towards a source communication network control element of the communication element, wherein the indication reflects the decision whether or not the multi-connectivity mode of the communication element is kept.