Semi-Persistent Transmission Activation Control in NR Systems
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Solution Overview
Problem
In the New Radio (NR) Access Technology system, there is a lack of detailed design rules for activation and deactivation of semi-persistent transmissions, which affects the efficiency and stability of these transmissions.
Innovation Solution
A data processing method is provided that includes sending and receiving control information for activating or deactivating semi-persistent transmissions, which includes specific information for managing HARQ-ACK resources and timing, ensuring proper priority handling and resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If semi-persistent transmission is activated without detailed design rules, then the transmission can be established quickly, but the efficiency and stability of the transmission deteriorates
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting HARQ-ACK timing parameters and resource allocation parameters based on the activation DCI content. The system changes the timing offset parameter K1 to determine when HARQ-ACK feedback should be transmitted, and adjusts resource allocation parameters to match the semi-persistent transmission configuration, thereby optimizing both efficiency and stability
Solution Approach 2:
The patent implements dynamics by making the HARQ-ACK resource allocation and timing flexible rather than fixed. The activation DCI dynamically indicates the HARQ-ACK timing offset and resource allocation, allowing the system to adapt to varying transmission conditions and requirements, thus improving transmission reliability while maintaining efficiency
2Measurement precision
If control information is sent for each semi-persistent transmission activation, then the control accuracy is improved, but the signaling overhead increases
Solution Approach 1:
The patent applies universality by designing the activation DCI to serve multiple functions simultaneously. The same DCI message activates the semi-persistent transmission, configures HARQ-ACK timing, allocates uplink resources, and indicates priority levels. This multi-functionality reduces the number of separate signaling messages needed while maintaining precise control over all transmission parameters
Solution Approach 2:
The patent merges multiple control functions into a single activation DCI message. The DCI combines transmission activation commands, HARQ-ACK timing indications, resource allocation information, and priority settings into one unified signaling structure, reducing overall signaling overhead while preserving control accuracy
3Productivity
If HARQ-ACK resources are dynamically allocated for semi-persistent transmission, then the resource allocation efficiency is improved, but the system complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring the terminal with a set of possible HARQ-ACK timing offset values and uplink resource locations before semi-persistent transmission activation. The activation DCI then simply points to the appropriate pre-configured options rather than allocating resources from scratch, reducing real-time processing complexity while maintaining dynamic allocation efficiency
Data Source
AI summary
Provided are a data processing method, a communication node and a computer-readable storage medium. The data processing method includes the following. A first communication node sends first control information to a second communication node, where the first control information is used for activating or deactivating at least one semi-persistent transmission, the first control information is associated with the first semi-persistent transmission, and the at least one semi-persistent transmission includes the first semi-persistent transmission.