Positioning Information Compression for Wireless Spectrum Efficiency
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Solution Overview
Problem
In digital trunking communication systems, the transmission of global positioning information is inefficient due to the need for two timeslot frames and scarce wireless spectrum, leading to low transmission efficiency.
Innovation Solution
A method and device for compressing positioning information by transforming original integer positioning information into compressed information based on application precision and original unit of least precision, and transmitting only the simplified positioning information, which reduces storage space and improves transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If positioning information is transmitted using two timeslot frames with UDT protocol, then positioning information can be transmitted, but transmission efficiency is low and storage space is wasted
Solution Approach 1:
The patent extracts only the necessary lower N bits from the compressed positioning information, transmitting only the essential data required for positioning while discarding redundant higher bits. This extraction principle directly reduces storage space occupation and improves transmission efficiency by eliminating unnecessary data transmission.
Solution Approach 2:
The patent transforms positioning information from its original format through compression and bit selection, changing the parameter representation from full precision to simplified precision. By converting positioning coordinates into compressed integer values and transmitting only lower N bits, the system achieves more efficient storage and transmission while maintaining adequate positioning accuracy.
2Quantity of substance
If original positioning information is transmitted directly, then complete positioning data is available, but data capacity is insufficient for multiple terminals
Solution Approach 1:
The patent creates a simplified copy of the positioning information by transmitting only the lower N bits that contain the essential positioning data. This copied representation is sufficient for positioning purposes and allows multiple terminals to share the same data capacity, effectively increasing the quantity of positioning information that can be transmitted within available bandwidth.
3Adaptability or versatility
If wireless spectrum is used for positioning information transmission, then positioning data can be communicated, but spectrum scarcity limits system capacity
Solution Approach 1:
The patent segments the positioning information into essential lower N bits and non-essential higher bits, transmitting only the critical segment. This segmentation allows the system to adapt to limited spectrum availability by transmitting minimal necessary data, thereby increasing the overall system capacity to support more terminals within the constrained wireless spectrum.
Data Source
AI summary
The present invention provides a positioning information transmission method and communication device. In an embodiment of the present invention, a transmitting end transforms original positioning information into original integer positioning information; then compresses the original integer positioning information into compressed positioning information according to an application precision unit and an original unit of least precision; and afterwards, intercepts lower N bits as simplified positioning information from the number of bits corresponding to the compressed positioning information, wherein the simplified positioning information is a bit distinguishing from positioning information of a receiving end, so that the transmitting end only transmits the simplified positioning information that could be restored to the receiving end. Therefore, the storage space of wireless communication data occupied by the compressed positioning information transmitted by the transmitting end can be reduced while ensuring the receiving end can obtain the valid positioning information of the transmitting end.