Dynamic Feedback Transmission Timing in Wireless Systems
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Solution Overview
Problem
Current communication technologies restrict the flexibility and reliability of feedback information transmission due to a fixed time interval between downlink data transmission and feedback information, limiting the ability to adapt to changing conditions and increasing the likelihood of interference in wireless communication systems.
Innovation Solution
The method involves dividing time-domain resources into multiple continuous units within sets, allowing terminal equipment to determine a second time-domain resource unit based on the location of the first unit within a set, enabling flexible and reliable feedback information transmission by reducing the likelihood of interference, especially when using unlicensed carriers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed time interval is used between downlink data transmission and feedback information transmission, then the system is simple to implement, but the transmission flexibility and reliability of feedback information are restricted
Solution Approach 1:
The patent applies dynamics by making the feedback transmission time flexible rather than fixed. The terminal equipment determines the feedback transmission time based on the actual receiving condition of downlink data, allowing the system to adapt dynamically to different channel conditions and traffic patterns, thereby improving transmission flexibility and reliability while maintaining reasonable system complexity
Solution Approach 2:
The patent changes the parameter of feedback transmission time from a fixed value to a variable determined by receiving conditions. By adjusting the feedback transmission time based on channel quality, data type, and other parameters, the system achieves better adaptability without significantly increasing implementation complexity
2Device complexity
If a fixed time interval is used between downlink data transmission and feedback information transmission, then the scheduling is simple, but the transmission reliability of feedback information is influenced
Solution Approach 1:
The patent makes the feedback transmission timing dynamic based on actual channel conditions and receiving status. When channel conditions are good, feedback can be transmitted sooner; when conditions are poor, the system can delay feedback transmission to avoid unreliable channels, thereby improving transmission reliability while keeping scheduling manageable
Solution Approach 2:
The patent uses feedback mechanisms where the terminal equipment monitors receiving conditions and adjusts feedback transmission timing accordingly. This closed-loop approach allows the system to improve reliability by adapting to changing channel conditions while maintaining reasonable scheduling complexity through standardized adjustment rules
3Device complexity
If feedback information is transmitted on a specified time-domain resource, then the resource allocation is straightforward, but the transmission flexibility is seriously restricted
Solution Approach 1:
The patent segments the time-domain resources into multiple可选 time slots for feedback transmission. Instead of allocating a single fixed resource, the system divides the time domain into multiple potential feedback opportunities, allowing flexible selection based on receiving conditions while maintaining clear resource allocation rules
Solution Approach 2:
The patent enables dynamic selection of feedback transmission resources from multiple available time slots. The terminal equipment can choose the most appropriate time-domain resource based on channel conditions, data priority, and other factors, achieving high transmission flexibility while the network maintains straightforward resource allocation through predefined slot structures
4Ease of operation
If a fixed time interval is used for feedback transmission, then the system operation is simple, but the ability to adapt to changing conditions is limited
Solution Approach 1:
The patent introduces dynamic adaptation to changing conditions while maintaining simple operation through standardized procedures. The terminal equipment automatically adjusts feedback transmission timing based on receiving conditions using pre-configured rules, eliminating the need for complex manual scheduling while improving adaptability to varying channel conditions and traffic patterns
Solution Approach 2:
The patent enables the terminal equipment to self-adjust feedback transmission timing based on its own receiving conditions without requiring complex network intervention. The device autonomously determines optimal feedback transmission moments based on channel quality and data status, simplifying network operation while enhancing system adaptability to changing conditions
Data Source
AI summary
A method and apparatus for transmitting feedback information are provided. The method comprises: a terminal device receives first downlink data, the first downlink data being borne in a first time-domain resource unit in a first time-domain resource set, the first time-domain resource set comprising at least one time-domain resource unit; the terminal device determines transmitting feedback information for the first downlink data in a second time-domain resource unit according to a location of the first time-domain resource unit in the first time-domain resource set.