Frequency Hopping Data Encoding for Telecommunications Throughput
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Solution Overview
Problem
Narrow-band digital telecommunications systems face inefficiencies in data transmission due to low data throughput ratios between useful and control data, particularly in sensor networks, where the transmission of lower-throughput data streams results in inefficient channel usage and requires additional control data, and existing methods do not allow for simultaneous transmission of multiple data streams without increasing control data or informing the station of their presence.
Innovation Solution
A method where a first data stream is encoded in conventional data packets and a second data stream is encoded in a frequency hopping pattern, allowing simultaneous transmission without increasing control data, and the station searches for data packets to extract both streams, with the second data stream being encoded as modifications to a theoretical frequency hopping pattern, enabling efficient multiplexing and increased throughput at constant frequency width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a second data stream with lower throughput is transmitted using conventional packet methods, then control data overhead increases and channel efficiency decreases, but if frequency hopping pattern encoding is used, then throughput efficiency improves while maintaining constant frequency width
Solution Approach 1:
The patent combines two data streams (first data stream in packets, second data stream in frequency hopping pattern) into a single transmission channel. The frequency hopping pattern itself carries information about the second data stream, merging control and data functions into one efficient transmission mechanism without requiring separate control packets.
Solution Approach 2:
The patent changes the encoding parameter from conventional packet-based data representation to frequency hopping pattern representation for the second data stream. By encoding data in the temporal and spectral characteristics of frequency hops rather than in packet payloads, the system achieves higher throughput efficiency while maintaining the same frequency width.
2Productivity
If multiple data streams are transmitted simultaneously using separate packet protocols, then each stream requires its own control data, but encoding one stream in frequency hopping pattern allows shared control data
Solution Approach 1:
The frequency hopping pattern serves multiple functions simultaneously: it transmits the second data stream, carries synchronization information, and provides channel occupation indication. This multi-functional approach eliminates the need for separate control packets for each data stream, reducing overall control overhead while enabling simultaneous transmission of multiple streams.
3Ease of operation
If the station is informed in advance of the second data stream presence, then proper reception can be ensured, but real-time transmission without prior notification is achieved through frequency hopping pattern encoding
Solution Approach 1:
The frequency hopping pattern is designed to be self-descriptive, containing inherent information about its own presence and characteristics. The pattern's temporal and spectral structure automatically indicates when the second data stream is being transmitted, allowing the station to detect and process it without prior external notification or separate control signaling.
Data Source
Figure 1~3
AI summary
The present invention relates to a method (50) for transmitting data via a terminal (10) to a station (20) of a digital telecommunications system, in which a first stream of data is encoded in data packets and a second stream of data is encoded in a frequency-hopping pattern, said data packets, in which the first stream of data is encoded, being consecutively transmitted in respective frequency bands of a frequency resource, said frequency bands being determined depending on said frequency-hopping pattern in which the second stream of data is encoded. The invention also relates to a method for adapted reception, as well as to a terminal and a station of a digital telecommunications system.