Multi-interface Terminal Neighbor Topology Discovery
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Solution Overview
Problem
Multi-interface intelligent terminals underutilize their multiple interfaces, leading to low usage rates and ineffective cooperative communication due to inability to directly communicate with terminals having different interfaces, limiting their communication efficiency and network reachability.
Innovation Solution
A method for neighbor topology discovery and cooperative communication in multi-interface terminals, where the terminal broadcasts neighbor discovery requests across all interfaces, updates network information, and uses this information to establish effective communication links and distribute services across multiple interfaces for parallel transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal selects only the optimal communication link for information interaction, then the communication reliability is improved, but the usage rate of many interfaces becomes very low
Solution Approach 1:
The patent combines multiple communication interfaces (Wi-Fi, Bluetooth, cellular, etc.) into a unified multi-interface terminal system that operates cooperatively. Instead of using interfaces independently or selectively, the system merges them into a coordinated network where all interfaces work together to discover neighbors, establish connections, and transmit data simultaneously, thereby improving both reliability and interface utilization
Solution Approach 2:
The patent implements multi-functionality by enabling the terminal to perform multiple communication functions simultaneously through different interfaces. The terminal can use Wi-Fi for high-speed data transmission, Bluetooth for short-range communication, and cellular for wide-area connectivity, all within the same operational context, making each interface serve multiple purposes rather than being dedicated to a single function
2Adaptability or versatility
If the terminal uses multiple interfaces for communication, then the network reachability is improved, but the cooperative communication advantage is not embodied due to inability to directly communicate with terminals having different interfaces
Solution Approach 1:
The patent introduces a standardized communication protocol and message format that acts as an intermediary between different interface types. This intermediary layer translates and standardizes communication signals so that terminals with different interfaces (Wi-Fi, Bluetooth, cellular) can understand and process each other's messages, enabling direct cooperative communication without requiring interface-specific translation layers
Solution Approach 2:
The patent segments the communication system into independent interface modules that can operate autonomously but coordinate through standardized messages. Each interface (Wi-Fi, Bluetooth, etc.) functions as an independent segment that can discover neighbors and establish connections separately, then these segments integrate their findings through a common coordination mechanism, allowing heterogeneous terminals to communicate cooperatively
3Measurement precision
If the terminal broadcasts neighbor discovery request messages periodically through all interfaces, then the network topology discovery is improved, but the time period for monitoring broadcast messages must be shorter than for broadcasting
Solution Approach 1:
The patent implements preliminary action by having the terminal broadcast neighbor discovery request messages at regular intervals to proactively announce its presence and gather topology information before actual communication is needed. This periodic broadcasting ensures that topology information is continuously updated and available when communication requests arise, eliminating the need for reactive response delays
Solution Approach 2:
The patent establishes a feedback mechanism where terminals monitor broadcast messages from other terminals and respond with neighbor discovery response messages. This feedback loop allows each terminal to receive and process topology information from multiple sources, validating and complementing the data gathered through periodic broadcasting, thereby achieving accurate topology discovery without requiring excessively short monitoring intervals
Data Source
AI summary
The present document provides a neighbor topology discovery method for a multi-interface terminal, to improve the usage rate of multiple interfaces. The method includes the following steps: after joining a network, the multi-interface terminal broadcasts a neighbor discovery request message to respective networks via each interface, and the neighbor discovery request message carries a neighbor hop value; and the multi-interface terminal in the network monitors broadcast messages of other terminals in the network where each interface is located; when detecting the neighbor discovery request message, if the neighbor hop value carried in the detected neighbor discovery request message indicates that the present terminal is the last hop, related information in the neighbor discovery request message is extracted, and neighbor information and network topology information of the present terminal is updated; and if not, the neighbor hop value is modified and the neighbor discovery request message is forwarded via all interfaces.