Wireless Transmission Timing Adjustment for Out-of-Order HARQ Processes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, particularly in 5G NR systems, there is a challenge in effectively managing out-of-order Hybrid Automatic Repeat Request (HARQ) processes, which can lead to inefficiencies in data transmission timing, affecting the quality of service for various communication types such as eMBB, URLLC, and mMTC.
Innovation Solution
A method and apparatus that determine the transmission timing of a second signal in a wireless communication system by identifying whether an out-of-order HARQ process occurs, and if so, include the processing time of the out-of-order HARQ process to adjust the transmission timing of the second signal, ensuring proper synchronization and resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If out-of-order HARQ processes are managed without adjusting transmission timing, then device complexity is reduced, but transmission reliability deteriorates due to timing misalignment
Solution Approach 1:
The patent applies preliminary action by determining the processing time of out-of-order HARQ processes in advance before actual transmission. The base station calculates the required processing time based on the out-of-order nature of HARQ processes and pre-determines the transmission timing of the second signal, ensuring that the terminal has sufficient time to process out-of-order arrivals without requiring complex real-time timing adjustments during transmission.
2Reliability
If transmission timing is adjusted to account for out-of-order HARQ processing, then transmission reliability improves, but loss of time increases due to extended processing requirements
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the transmission timing parameter based on the out-of-order HARQ process characteristics. When out-of-order processes are detected, the system modifies the timing parameter to include additional processing time, ensuring reliable service quality while minimizing unnecessary delays by only adjusting timing when out-of-order conditions occur.
3Manufacturing precision
If processing time for out-of-order HARQ is included in transmission timing, then manufacturing precision of transmission schedule is improved, but productivity decreases due to slower transmission rate
Solution Approach 1:
The patent applies partial action by selectively including processing time adjustments only when out-of-order HARQ processes are detected. The system does not universally extend transmission timing for all HARQ processes, but rather applies the timing adjustment partially only when necessary, thereby maintaining high transmission efficiency for normal in-order processes while ensuring timing precision when out-of-order conditions occur.
Data Source
AI summary
The disclosure relates to a method and apparatus for transmitting or receiving control information and data information in a wireless communication system, and in an embodiment of the disclosure, a method of identifying transmission timing of a terminal in a wireless communication system includes receiving a first signal from a base station, determining whether an out-of-order hybrid automatic repeat request (HARQ) process occurs, determining transmission timing of a second signal, which is a response to the first signal, to include a processing time of the out-of-order HARQ process when the out-of-order HARQ process occurs, and transmitting the second signal at the determined transmission timing.