Inactive-State Data Transmission With Preserved User Context
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Solution Overview
Problem
Existing 5G mobile communication systems face challenges in efficiently managing small data transmissions in inactive states, leading to increased signaling overhead and communication delays due to the need for extensive context re-establishment processes.
Innovation Solution
A method and device for configuring data transmission that allows users to transmit small data in an inactive state by preserving context information, reducing unnecessary signaling overhead through methods involving message exchanges between nodes to manage user configuration and context preservation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If users transmit small data in inactive state with context preservation, then signaling overhead is reduced and transmission speed is improved, but device complexity increases due to context management requirements
Solution Approach 1:
The system performs preliminary actions by establishing and preserving user context information before the user actually needs to transmit data. The context is set up in advance during connection establishment and maintained in the inactive state, so that when small data transmission is needed, the user can immediately utilize the pre-established context without going through full connection re-establishment procedures.
Solution Approach 2:
The patent segments the connection management process by separating full connection establishment from small data transmission. Instead of requiring complete connection re-establishment for every small data transfer, the system divides the process into: (1) initial context establishment, (2) context preservation in inactive state, and (3) rapid data transmission using preserved context. This segmentation allows small data to be handled independently from full connection procedures.
2Reliability
If extensive context re-establishment processes are performed for small data transmission, then connection reliability is maintained, but signaling overhead increases and transmission delay increases
Solution Approach 1:
The system applies partial action by performing only the necessary minimum actions for small data transmission rather than complete connection re-establishment. When a user in inactive state needs to transmit small data, the system performs partial context activation and selective resource allocation instead of full connection setup, thereby reducing transmission delay while maintaining sufficient reliability for small data packets.
Solution Approach 2:
The patent uses copying by creating and maintaining a simplified copy of user context information in the inactive state. This context copy contains essential identification and configuration data that enables rapid small data transmission without requiring the full original connection context. The copied context is sufficient for small data handling, avoiding the need to restore complete connection state.
3Reliability
If users transition from inactive to connected state for small data transmission, then complete resource allocation is ensured, but signaling overhead increases and energy consumption increases
Solution Approach 1:
The system performs partial resource allocation instead of complete resource allocation for small data transmission. When transmitting small data in inactive state, only the specific radio resources needed for that data are allocated temporarily, rather than allocating full connection resources. This partial allocation reduces energy consumption while providing sufficient resources for small data packets.
Solution Approach 2:
The patent extracts small data transmission functionality from the full connection establishment process. By separating small data handling from complete connection procedures, the system extracts only the essential elements needed for small data (context identification, minimal resource allocation, data transmission) while leaving out the heavier components of full connection setup (complete authentication, full resource allocation, extensive signaling), thereby reducing energy consumption.
Data Source
AI summary
The disclosure relates to a fifth generation (5G) or sixth generation (6G) communication system for supporting a higher data transmission rate. A method and a device for configuring data transmission are provided. The method includes transmitting a first message to a second node, the first message being used for the first node to provide configuration information for a user to the second node, or used for the first node to request the configuration information for the user from the second node, and/or receiving a second message from the second node, the second message being used for the second node to provide the configuration information for the user to the first node, or used for the second node to request the configuration information for the user from the first node, to avoid unnecessary signaling overhead.