Network Node Context Preparation for Radio Resumption
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Solution Overview
Problem
Current communication systems face challenges in providing a radio interface that is not bottlenecked, especially for machine-type communications, and ensuring security to prevent false information insertion, particularly in latency-critical operations and vehicular safety scenarios.
Innovation Solution
The system includes a network node with a processor and memory configured to manage radio connection resumptions and network context preparations, involving authentication and security information, to enable efficient data transmission while maintaining low latency and security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the network node stores network context information for user devices in low activity state, then the radio connection resumption efficiency is improved, but the network node complexity increases
Solution Approach 1:
The network node performs preliminary actions by storing network context information (including security information) for user devices while they are in low activity state. This allows the context to be readily available when the device needs to resume communication, eliminating the need for lengthy context retrieval procedures later and thus improving resumption efficiency without adding operational complexity during active communication.
2Reliability
If the system transmits network context request to serving node, then the security verification is improved, but the transmission latency increases
Solution Approach 1:
The system performs security verification in advance by transmitting and storing network context information including authentication data while the user device is in low activity state. This preliminary security setup ensures that when the device becomes active, the verification is already complete, thus maintaining high security reliability while minimizing transmission latency during actual data communication.
3Speed
If the network node prepares network context in advance, then the data transmission speed is improved, but the energy consumption increases
Solution Approach 1:
The network node performs context preparation in advance during periods when the user device is in low activity state, utilizing otherwise idle network resources. This approach enables fast data transmission when needed without requiring continuous energy expenditure, as the context is pre-configured and stored ready for immediate use when the device becomes active.
Data Source
AI summary
An apparatus suitable for at least to: select a cell in a low activity state, and; in the case the selected cell is the same as a serving cell while carrying out a state change to the low activity state, transmit a radio connection resume request to the selected cell; or in the case the selected cell is another cell than the serving cell while carrying out a state change to the low activity state, transmit a radio resume request to the selected cell with information on the location of the user device provided the information on the location has not been transmitted in relation to a cell change carried out in the low activity state; receive, as a response to the radio connection resume request, a radio connection resume request response, and carry out a radio connection resume for the data transmission.