Data Frame Transmission HARQ Field Design for Wireless Efficiency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The ARQ protocol leads to delays and low data transmission efficiency due to the discarding of incorrect data frames and subsequent retransmissions without proper processing in data frame transmission.
Innovation Solution
Incorporating a hybrid automatic repeat request (HARQ) field into data frames, including a HARQ indication field and an identity identification field, to determine if a data frame requires HARQ processing and identify the target receiver, thereby improving data transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the ARQ protocol is used for data frame transmission, then error recovery is achieved through retransmission, but transmission delay increases and data transmission efficiency decreases
Solution Approach 1:
The receiver performs preliminary actions by storing the received data frame (even if erroneous) and generating a positive acknowledgement immediately, rather than waiting for potential retransmission. This preliminary storage and acknowledgement generation eliminates the need for waiting during error recovery, thereby reducing transmission delay while maintaining reliability
2Device complexity
If the ARQ protocol discards wrong data frames without storage, then processing complexity is reduced, but retransmission requirements increase and transmission efficiency decreases
Solution Approach 1:
The system applies discarding and recovering by storing the erroneous data frame temporarily at the receiver, using it to generate a positive acknowledgement, and then discarding it after the sender retransmits the correct version. This approach recovers the utility of the erroneous frame for acknowledgement purposes while ultimately discarding it to make room for new data, thus improving transmission efficiency without significantly increasing processing complexity
3Productivity
If HARQ processing is implemented with field additions, then data transmission efficiency improves, but data frame structure complexity increases
Solution Approach 1:
The HARQ functionality is segmented into distinct fields within the data frame structure: a HARQ indication field and a HARQ process identifier field. This segmentation allows the receiver to efficiently parse and process only the relevant HARQ portions without dealing with the entire frame structure, thereby improving data transmission efficiency through organized, modular processing while managing frame structure complexity through systematic division
Data Source
AI summary
Provided are a method and apparatus for transmitting a data frame and a storage medium. The method for transmitting a data frame includes that a sender adds a hybrid automatic repeat request (HARQ)-related field into the data frame and that the sender transmits the data frame with the added HARQ-related field to a receiver. The HARQ-related field includes a HARQ indication field and an identity identification field, the HARQ indication field indicates whether the data frame is required to be processed according to a HARQ process, and the identity identification field indicates an identity identification of a target receiver of the data frame.