Seed-Based Frequency Hopping Sequence Generation
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Solution Overview
Problem
Existing wireless communication systems face challenges in minimizing interference and security concerns due to the need to store and transmit lengthy frequency hopping sequences, which consume memory space and increase costs, especially when sequences are shared among devices.
Innovation Solution
Generating a frequency hopping sequence on-demand using a seed value, eliminating the need to store the entire sequence, and allowing devices to calculate the next transmission frequency based on the last used frequency, thereby reducing memory usage and transmission overhead while enhancing security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the complete frequency hopping sequence is stored in local memory of each device, then the device can properly address targeted devices and reject information from neighboring devices, but this consumes valuable memory space and increases cost
Solution Approach 1:
The patent extracts only the essential seed value from the complete frequency hopping sequence and stores it in local memory, while the full sequence is generated dynamically during communication. This allows devices to maintain communication reliability through proper frequency addressing and interference rejection without consuming valuable memory space for storing the entire sequence.
Solution Approach 2:
The patent implements a dynamic frequency hopping sequence generation mechanism where the sequence is calculated on-demand based on the stored seed value and current communication state, rather than being statically stored. This dynamic approach enables memory-efficient operation while maintaining the ability to properly address devices and reject neighboring device information.
2Adaptability or versatility
If the entire hopping sequence is transmitted to each device, then the sequence can be shared among multiple devices, but this requires potentially long message transfers and introduces security concerns
Solution Approach 1:
The patent extracts only the seed value for sequence generation and transmits it to devices, rather than transmitting the complete hopping sequence. This significantly reduces transmission time and minimizes exposure to security threats during transmission, while still enabling sequence sharing among multiple devices through the transmitted seed value.
Solution Approach 2:
The patent performs preliminary generation of the frequency hopping sequence using the transmitted seed value before actual data communication begins. This allows the sequence to be prepared in advance without requiring lengthy transmissions, reducing transmission time while maintaining sequence sharing capability across multiple devices.
3Ease of operation
If the sequence is stored in memory of each communication device, then the sequence is available for use, but this makes the sequence further susceptible to security problems
Solution Approach 1:
The patent extracts only the minimal seed value for sequence generation and stores it in device memory, while the complete sequence remains generated dynamically during operation. This reduces the amount of sensitive data stored in memory, thereby reducing security vulnerability while maintaining sequence availability for proper communication operations.
Solution Approach 2:
The patent implements a dynamic sequence generation approach where the frequency hopping sequence is calculated on-demand rather than being statically stored. This dynamic mechanism reduces the attack surface for security vulnerabilities while ensuring sequence availability for proper device addressing and communication, as the sequence is generated fresh for each communication session.
Data Source
AI summary
Systems, apparatuses and methods for identifying frequencies for use in communicating data. Frequency hopping sequences are used in the communication of data without the need to store or exchange the sequences themselves. A seed value is obtained, and the frequency hopping sequence is calculated using the seed each time data is to be communicated using that frequency hopping sequence. The data is communicated via one or more frequencies in the calculated frequency hopping sequence.