Packet Header Channel Quality Circuit for Fast Interference Screening
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Solution Overview
Problem
Existing wireless communication systems, such as Bluetooth and WLAN, face interference issues due to overlapping frequency bands, making it difficult to quickly determine available channels and avoid signal quality degradation.
Innovation Solution
A channel quality determining circuit and method that utilizes the header of packets to assess the quality of signal transmitting channels, allowing for rapid identification of suitable channels by analyzing the ratio of maximum to minimum power in the header, thereby enabling the adaptive frequency-hopping mechanism to avoid interfered channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional channel quality assessment methods are used, then measurement precision is improved, but loss of time increases significantly
Solution Approach 1:
The patent extracts only the header portion of packets for channel quality assessment, rather than analyzing complete packets. By focusing solely on the header which contains sufficient quality indicators, the system achieves rapid channel evaluation without the time penalty of processing full packet data, thus resolving the contradiction between measurement precision and time loss.
Solution Approach 2:
The patent segments the channel assessment process by dividing it into discrete header analysis units. Instead of assessing channels continuously or in large blocks, the system processes individual packet headers sequentially, enabling quick quality determination of each channel while maintaining adequate measurement precision through targeted header parameter analysis.
2Reliability
If adaptive frequency-hopping mechanism is implemented, then reliability of communication is improved, but device complexity increases
Solution Approach 1:
The patent implements preliminary channel quality assessment using packet headers before full communication establishment. By performing quick header-based quality checks in advance, the system identifies suitable channels proactively, enabling reliable communication without requiring complex real-time adaptation mechanisms during data transmission.
Solution Approach 2:
The patent applies partial action by using only the header portion of packets for quality assessment rather than analyzing complete packets. This partial approach provides sufficient information for channel quality determination while significantly reducing processing complexity, thus achieving reliable communication with simpler device architecture.
Data Source
AI summary
A channel quality determining circuit includes a receiving circuit and a determining circuit. The receiving circuit is used for receiving a header of at least one packet transmitted in a signal transmitting channel. The determining circuit is coupled to the receiving circuit, and used for determining if a channel quality of the signal transmitting channel satisfies a predetermined quality standard according to the header of at least one packet.