HARQ Timing Offset for Wireless Frame Processing
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Solution Overview
Problem
Conventional synchronous HARQ methods in wireless mobile communication systems fail to consider variations in radio signal processing time and data burst transmission, leading to delayed packet transmission and increased buffer waiting times, which hinder high-speed data transmission and complicate the HARQ timing procedure.
Innovation Solution
A method that determines a frame offset based on the difference between radio signal processing time and the number of uplink subframes, allowing for flexible HARQ timing by adjusting the transmission of feedback signals and data bursts across frames, ensuring efficient resource allocation and reducing packet transmission delay.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If synchronous HARQ method is used with fixed timing, then HARQ procedure is simplified, but packet transmission delay increases and buffer waiting time increases
Solution Approach 1:
The patent applies dynamics by making the HARQ timing flexible rather than fixed. The feedback timing is dynamically adjusted based on the actual radio signal processing time and frame structure, allowing the system to adapt timing parameters to different scenarios while maintaining procedural simplicity through standardized adjustment rules.
2Device complexity
If synchronous HARQ method is used with fixed timing, then HARQ procedure is simplified, but high-speed data transmission is hindered
Solution Approach 1:
The patent enables high-speed data transmission by dynamically adjusting HARQ timing parameters according to actual processing times and frame structures. This flexibility allows the system to optimize throughput by reducing unnecessary waiting times while keeping the HARQ procedure manageable through systematic timing adjustment mechanisms.
3Device complexity
If frame offset is determined without considering radio signal processing time, then timing procedure is simplified, but packet transmission delay increases
Solution Approach 1:
The patent changes the timing parameters of the HARQ procedure by introducing frame offsets that are explicitly determined based on radio signal processing time. This parameter adjustment allows the system to account for actual processing requirements while maintaining a structured timing procedure through standardized offset calculation methods.
Data Source
AI summary
Disclosed are a base station and a mobile station which communicate with each other using a frame comprising one or more downlink subframes and one or more uplink subframes. The base station transmits a data burst in a subframe corresponding to a downlink subframe index of a frame corresponding to a first frame index. The mobile station transmits a feedback for the data burst in a subframe corresponding to an uplink subframe index of a frame corresponding to a second frame index. The second frame index and the uplink subframe index are determined by a parameter value. The parameter value is determined by a difference between radio signal processing time and the number of the one or more uplink subframes.