Small Data Indicator Signaling for Wireless Connection Setup
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Solution Overview
Problem
Current data transmission methods from idle mode to RRC CONNECTED mode in wireless communication networks result in high signaling overhead, leading to resource consumption and low handling speed due to separate RRC connection establishment, DRB setup, and security handling procedures.
Innovation Solution
A data transmission method that includes transmitting a connection request with a small data indicator to the base station, followed by a connection setup message containing a signaling radio bearer and data radio bearer configuration, and a connection setup complete message with a security identifier, connection identifier, and optional signature, to reduce signaling overhead and improve resource allocation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate RRC connection establishment, DRB setup and security handling procedures are performed, then reliable connection and security are ensured, but signaling overhead increases and handling speed decreases
Solution Approach 1:
The patent combines RRC connection establishment, DRB setup, and security handling procedures into a single integrated flow. The base station performs security context preparation and RRC connection setup simultaneously, eliminating the need for separate sequential procedures. This merging reduces signaling messages and processing steps while maintaining connection reliability and security requirements.
Solution Approach 2:
The base station performs security context preparation in advance before the actual data transmission begins. By pre-establishing security contexts and preparing necessary parameters, the system avoids time-consuming security negotiations during the connection setup phase, thereby improving handling speed without compromising security.
2Reliability
If separate RRC connection establishment, DRB setup and security handling procedures are performed, then connection security is ensured, but signaling overhead increases
Solution Approach 1:
The patent merges multiple signaling procedures into a single integrated flow, reducing the number of separate signaling messages. The base station combines RRC connection establishment signaling with security context preparation and DRB setup signaling, thereby reducing overall signaling overhead while maintaining comprehensive security coverage.
Solution Approach 2:
The patent creates a universal signaling flow that handles multiple functions simultaneously - connection establishment, security context setup, and DRB configuration are all performed within the same signaling exchange. This multi-functional approach reduces redundant signaling and simplifies the overall procedure while ensuring security requirements are met.
3Reliability
If traditional connection establishment procedures are used, then proper security handling is achieved, but resource consumption increases
Solution Approach 1:
The base station performs security context preparation in advance, so that when data transmission begins, the security contexts are already established and ready for use. This preliminary action eliminates the need for time-consuming security negotiations during data transmission, reducing resource consumption while maintaining proper security handling.
Solution Approach 2:
By combining security context preparation with RRC connection establishment, the patent performs multiple functions in a single resource-intensive operation. This merging reduces the total number of separate operations that consume resources, thereby reducing overall resource consumption while ensuring security handling is properly performed.
Data Source
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AI summary
A data transmission method and device are provided. The method comprises: transmitting a connection request containing a small data indicator to a base station; and transmitting a connection setup complete message to the base station to obtain a resource allocation result in response to reception of a connection setup message containing a signaling radio bearer and data radio bearer configuration from the base station.