Communication Terminal Packet Concatenation for Transmission Efficiency
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Solution Overview
Problem
Conventional communication terminal devices face inefficiencies in data transmission due to high overhead from preamble and control fields, leading to reduced transmission efficiency, and fail to meet quality of service requirements for audio and video streams, especially in environments with high frame error rates and cyclic power noise.
Innovation Solution
A communication terminal device that classifies and accumulates packets by stream types and destinations, generates frames only when transmission quality requirements are met, and allows for selective packet retransmission, using a QoS control section to determine optimal concatenation and delay times, and adjusts for cyclic power noise by changing the maximum concatenation number.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the transmission rate of the data field is increased to improve data throughput, then the data transmission speed is improved, but the overhead from preamble and control fields increases, reducing effective transmission efficiency
Solution Approach 1:
The patent merges multiple packets into a single frame for transmission. By combining multiple data packets into one frame structure, the overhead from preamble and control fields is amortized across multiple packets, thereby improving effective transmission efficiency while maintaining high data transmission speeds.
2Device complexity
If frame transmission is used to simplify protocol structure, then device complexity is reduced, but quality of service requirements for audio and video streams cannot be met in high error rate environments
Solution Approach 1:
The patent segments the frame into multiple individual packets, each with its own sequence number and error detection capabilities. This segmentation allows for selective retransmission of only erroneous packets rather than entire frames, improving QoS reliability for audio and video streams while keeping the protocol structure manageable.
Solution Approach 2:
The patent implements a feedback mechanism where the receiving terminal detects errors in individual packets using sequence numbers and error detection codes, then requests retransmission of only the erroneous packets. This selective retransmission feedback system ensures QoS requirements are met in high error rate environments without requiring complex protocol structures.
3Productivity
If packet accumulation is increased to improve transmission efficiency, then more data can be transmitted per frame, but delay time increases which violates QoS requirements
Solution Approach 1:
The patent dynamically controls the accumulation of packets in the packet accumulation section based on QoS parameters. The transmission control section monitors delay requirements and adjusts when to trigger frame generation, allowing flexible optimization between transmission efficiency and delay time based on real-time QoS conditions.
4Reliability
If selective packet retransmission is implemented to improve reliability, then error recovery is enhanced, but device complexity increases due to additional control mechanisms
Solution Approach 1:
The patent incorporates sequence numbers and error detection codes in each packet during the framing process, before transmission. This preliminary action enables the receiving terminal to quickly identify erroneous packets without requiring complex analysis during error recovery, simplifying the overall control mechanism while enhancing reliability.
Data Source
AI summary
A communication terminal device of the present invention includes: a packet classification section 103 for classifying the packets by stream types and destinations; a packet accumulation section 104-107 for accumulating the packets classified by the packet classification section, so as to be separately stored based on classification by the stream types and the destinations; a QoS control section 113 for determining a transmission start requirement based on a QoS parameter which defines a transmission quality of a stream; a transmission control section 108 for determining whether the transmission start requirement is satisfied; a framing section 109 for generating the frame by concatenating the packets accumulated in the packet accumulation section if it is determined by the transmission control section that the transmission start requirement is satisfied; and a transmission section 110 for transmitting the frame generated by the framing section to a destination communication terminal device.