Terminal Device Repeated Transmission Quantity Control
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Solution Overview
Problem
In wireless communication systems, especially in scenarios requiring ultra-reliable low-latency communication and IoT, conventional methods for data transmission face challenges with high signaling overheads and latency due to repeated transmissions, which are not adequately addressed by existing technologies.
Innovation Solution
A data sending method where a terminal device determines the quantity of repeated transmissions based on receive power configuration information, allowing flexible selection of transmission quantities according to actual conditions, thereby reducing signaling overheads and improving data transmission performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network device independently configures and notifies quantities of repeated transmissions for terminal devices at different coverage levels, then data transmission reliability is improved, but signaling overheads are increased
Solution Approach 1:
The terminal device autonomously determines the quantity of repeated transmissions based on its own coverage level and receive power configuration, without requiring the network device to independently configure and notify each terminal. This self-service approach reduces signaling overhead while maintaining transmission reliability through autonomous adaptation to coverage conditions.
Solution Approach 2:
The patent changes the parameter determination approach from network-configured to terminal-autonomous based on receive power measurements. The terminal device uses measured receive power and coverage level parameters to dynamically determine the appropriate quantity of repeated transmissions, reducing the need for extensive network signaling while adapting to varying channel conditions.
2Reliability
If the network device independently configures quantities of repeated transmissions for terminal devices, then data transmission reliability is improved, but latency is increased
Solution Approach 1:
The terminal device pre-determines the quantity of repeated transmissions based on its coverage level and receive power configuration before actual data transmission occurs. This preliminary determination eliminates the need for real-time network configuration and notification during the transmission process, thereby reducing latency while ensuring appropriate repetition levels for reliable delivery.
Solution Approach 2:
The terminal device autonomously determines the quantity of repeated transmissions based on its own coverage level and receive power configuration, without requiring the network device to independently configure and notify each terminal. This self-service approach reduces signaling overhead while maintaining transmission reliability through autonomous adaptation to coverage conditions.
3Loss of information
If the terminal device autonomously determines quantity of repeated transmissions based on receive power configuration, then signaling overheads are reduced, but transmission precision may be affected
Solution Approach 1:
The terminal device uses feedback from receive power measurements and coverage level assessments to autonomously determine the quantity of repeated transmissions. This feedback mechanism ensures that the terminal makes informed decisions based on actual channel conditions, maintaining transmission precision while reducing signaling overhead by eliminating the need for extensive network configuration messages.
Data Source
AI summary
The application provides a data sending method and a communication apparatus to avoid signaling overheads caused by scheduling by a network device, and a terminal device can flexibly select a quantity of repeated transmissions based on an actual situation, so that data transmission performance is improved. The network device sends configuration information of a receive power to the terminal device. After receiving the configuration information of the receive power, the terminal device determines a quantity of repeated transmissions of target data based on the configuration information of the receive power. After determining the quantity of repeated transmissions of the target data, the terminal device sends the target data to the network device based on the quantity of repeated transmissions of the target data.