Dynamic DCI Format Size Determination for Wireless Resource Efficiency
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Solution Overview
Problem
In current LTE communication systems, the fixed length of Downlink Control Information (DCI) formats leads to resource waste, as they are not adaptable to varying lengths of information bits, resulting in inefficient resource utilization.
Innovation Solution
A method and device that determine the size of the DCI format based on the actual length of information bits, allowing for dynamic adjustment of the DCI format size, which includes sending the determined size to the terminal and using control signaling to convey this information, thereby reducing resource waste by aligning the DCI format size with the actual information bits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a fixed length DCI format is used, then the structure is simple and easy to implement, but resource waste occurs due to inability to adapt to varying information bit lengths
Solution Approach 1:
The patent applies dynamics by making the DCI format size variable rather than fixed. The network device dynamically adjusts the DCI format size based on the actual information bit length, allowing the system to adapt between different size states (smaller when bits are few, larger when bits are many), thereby eliminating resource waste while maintaining implementation feasibility through standardized adjustment rules.
Solution Approach 2:
The patent changes the parameter of DCI format size from a fixed constant to a variable parameter that adjusts according to information bit length. By establishing a correspondence relationship between information bit length and DCI format size, and notifying the terminal of this size through signaling, the system achieves efficient resource utilization while keeping the implementation straightforward through parameter-based adaptation.
2Adaptability or versatility
If the DCI format size is increased to accommodate maximum information bits, then all information can be transmitted, but resource utilization decreases due to allocation of excess resources
Solution Approach 1:
The patent makes the DCI format size dynamic by adjusting it to match the actual information bit length rather than using a fixed maximum size. The network device determines the appropriate DCI format size based on the specific information transmission requirements, ensuring that resources are allocated precisely according to need, thus improving utilization efficiency while maintaining full information transmission capability.
Solution Approach 2:
The patent changes the DCI format size parameter from a static maximum value to a dynamic value that varies with information bit length. By establishing a mapping between information bit length and DCI format size, and notifying the terminal through control signaling, the system achieves optimal resource utilization while preserving the ability to transmit all required information.
3Ease of operation
If a fixed DCI format size is used, then terminal detection is simplified, but resource utilization rate decreases due to mismatch with actual information length
Solution Approach 1:
The patent applies dynamics by enabling the DCI format size to vary according to actual information bit length while maintaining simplified terminal detection. The network device dynamically selects and notifies the terminal of the appropriate DCI format size through control signaling, allowing the terminal to detect only the relevant size without complex analysis, thus preserving detection simplicity while improving resource utilization.
Solution Approach 2:
The patent changes the DCI format size from a fixed parameter to a variable parameter that adapts to information bit length. By notifying the terminal of the determined DCI format size through signaling, the terminal can simplify its detection process by knowing the exact size in advance, while the system achieves improved resource utilization through the parameter adaptation mechanism.
Data Source
AI summary
The present invention relates to a determination method and device for the size of a downlink control information format. The method includes: determining, according to a length of information bits carried by a downlink control information (DCI) format, a size of the DCI format that needs to be detected by a terminal; and sending the size of the DCI format to the terminal. According to the technical solution, the size of the DCI format is determined by means of the length of the information bits actually to be carried by the DCI format, and the size of the DCI format is related to the length of the information bits actually to be carried by the DCI format, which can prevent the problem of resource waste caused by a DCI format with fixed length in the related art and increase resource utilization.