Protocol-Agnostic LTE CDMA Session Mapper
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Solution Overview
Problem
In complex CDMA/LTE networks, measuring network performance, troubleshooting, and controlling service behavior are challenging due to the instability introduced by the evolution of new network technologies, and existing monitoring systems require protocol-specific knowledge, making it difficult to reuse mappers for new protocols and associate user equipment (UE) information across different network types.
Innovation Solution
A generic key-value database-based LTE/CDMA mapper is introduced to process and store parameters from both LTE and CDMA messages, allowing for seamless handovers and providing a protocol-agnostic framework that persists data models and shares information with clients, enabling efficient network monitoring and management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If protocol-specific mappers are used for monitoring CDMA and LTE networks, then protocol-specific knowledge can be processed, but the system complexity increases and reusability across different protocols decreases
Solution Approach 1:
The patent implements a universal mapper that can handle multiple protocols (CDMA, LTE, and future protocols) through a single unified data model. The mapper uses protocol-agnostic parameter extraction and a standardized data structure that accommodates different network protocols without requiring separate protocol-specific implementations, thereby achieving multi-functionality and reducing system complexity.
Solution Approach 2:
The patent segments the monitoring system into distinct modular components: a protocol-independent data model layer, a parameter extraction layer, and a protocol-specific message processing layer. This segmentation allows each layer to be developed and maintained independently, reducing overall system complexity while maintaining versatility across protocols.
2Adaptability or versatility
If network evolution introduces new technologies like eHRPD and LTE, then network capabilities improve, but network stability decreases making measurement and troubleshooting difficult
Solution Approach 1:
The patent establishes a pre-defined unified data model and standardized parameter structures before deploying new network technologies. This preliminary framework allows the monitoring system to immediately accommodate new protocols like eHRPD and LTE without requiring structural changes, thereby maintaining stability during network evolution while supporting enhanced capabilities.
Solution Approach 2:
The patent uses a flexible parameter-based data model that can accommodate changes in network protocols through parameter definition rather than structural modification. New protocols are supported by defining their specific parameters within the existing unified framework, allowing network capabilities to evolve while maintaining system stability through consistent data handling mechanisms.
3Ease of operation
If external monitoring systems sniff data from network interfaces, then non-intrusive monitoring is achieved, but associating UE information across different network types becomes difficult
Solution Approach 1:
The patent merges information from multiple protocol sources (CDMA, LTE) into a single unified data model that associates UE information across different network types. By combining protocol-specific parameters into a standardized unified structure with consistent UE identification mechanisms, the system maintains ease of non-intrusive monitoring while preventing information loss during cross-protocol association.
Data Source
AI summary
A mapper for use in processing messages captured from a telecommunications network is disclosed. In one embodiment, one or more LTE messages are received from a LTE network, and one or more CDMA messages are received from a CDMA network. An LTE/CDMA mapper entry associated with the LTE and CDMA messages is identified. The LTE/CDMA mapper is associated with UE that is capable of operating on both the LTE and CDMA networks. The LTE and CDMA messages are processed using the LTE/CDMA mapper. The processing of the LTE and CDMA messages may comprise extracting parameters from the LTE or CDMA messages and storing the parameters to the LTE/CDMA mapper. The content in the LTE or CDMA messages may be deciphered using authentication parameters stored in the LTE/CDMA mapper. A generic client library may be used, for example, to access the LTE/CDMA mapper.