Data Transmission Configuration Switching for Duplication Recovery
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Solution Overview
Problem
Conventional communication systems lack flexibility in managing data transmission duplication states, necessitating multiple indications for activation and deactivation, which can lead to system downtime and inefficient spectrum utilization.
Innovation Solution
A method involving a network device sending indication information with data transmission configuration and validity period information to a terminal device, enabling flexible and timely recovery of data transmission within a specified period, thereby avoiding downtime and improving spectrum utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple MAC CEs are sent to indicate activation and deactivation of duplication transmission, then the terminal can switch duplication states, but the system experiences prolonged downtime and reduced spectrum utilization
Solution Approach 1:
The patent combines multiple MAC CEs into a single MAC CE that can carry both activation and deactivation commands for multiple duplication transmission configurations. This merging reduces the number of separate indications needed, allowing the terminal to switch duplication states more quickly and reducing system downtime while maintaining transmission reliability.
Solution Approach 2:
The patent enables the terminal to pre-configure multiple duplication transmission configurations and pre-prepare switching actions. When a failure is detected, the terminal can immediately switch to a pre-configured backup configuration without waiting for multiple sequential commands, thereby reducing downtime while ensuring reliable transmission recovery.
2Adaptability or versatility
If multiple MAC CEs are used for duplication activation and deactivation, then transmission state control is achieved, but spectrum utilization efficiency decreases
Solution Approach 1:
The patent merges multiple MAC CEs into a single compact MAC CE structure that can convey multiple commands (activation, deactivation, switching) in one transmission. This reduces the total number of uplink transmissions required, improving spectrum utilization efficiency while maintaining the ability to control multiple duplication states flexibly.
Solution Approach 2:
The patent designs a universal MAC CE structure that can perform multiple functions: activating duplication, deactivating duplication, and switching between configurations. This multi-functional approach eliminates the need for separate dedicated commands for each operation, reducing spectrum consumption while preserving full control flexibility.
3Reliability
If conventional duplication activation mechanism is used, then data transmission can be recovered, but the process requires multiple indications and takes prolonged time
Solution Approach 1:
The patent pre-configures multiple duplication transmission configurations and prepares switching actions in advance. When transmission failure occurs, the terminal can immediately execute a pre-prepared switch to a backup configuration without waiting for sequential commands, achieving rapid recovery while ensuring reliable transmission restoration.
Solution Approach 2:
The patent enables the terminal to skip the sequential command exchange process by using a single MAC CE that carries the complete switching instruction. The terminal can directly rush through to the recovered state by applying the configuration change indicated in the single MAC CE, significantly accelerating the recovery process while maintaining transmission reliability.
Data Source
AI summary
The present application relates to a data transmission method, a network device and a terminal device. Said method comprises: a network device sending instruction information to a terminal device, the instruction information including data transmission configuration information and validity period information, and the instruction information being used for instructing the terminal device to perform data transmission within a validity period according to the data transmission configuration information.