Ad Hoc Wireless Network Slot Allocation via Beacon Signals
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Solution Overview
Problem
Conventional wireless communication systems face challenges in enabling time division multiplex communication among multiple apparatuses without synchronization, efficient power management, and access control in ultra-wide band wireless communication, particularly in ad hoc networks, where synchronization is not necessary and power consumption is high due to constant receiving operations.
Innovation Solution
A wireless communication system and method that allows multiple apparatuses to communicate using a frame period setting, data slot setting, and reception slot setting, with beacon signals transmitted at predetermined timings to manage data transmission and reception, enabling asynchronous control and reducing power consumption by only engaging in receiving operations when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If time division multiplex connection is used in ad hoc mode without a control station, then device complexity is reduced, but synchronization among terminals becomes difficult to maintain
Solution Approach 1:
Each terminal station autonomously determines its own transmission timing based on the beacon signal received from another terminal, without requiring centralized synchronization control. The terminal sets its transmission slot based on the reception slot information contained in the beacon, enabling self-organized time division multiplexing in ad hoc mode.
2Reliability
If terminals constantly operate to be ready to receive signals in ad hoc mode, then communication reliability is improved, but power consumption increases
Solution Approach 1:
Terminals transmit beacon signals periodically at predetermined intervals rather than continuously monitoring for incoming signals. This periodic beacon transmission enables terminals to synchronize their reception slots without requiring constant operational readiness, thereby reducing power consumption while maintaining communication reliability.
3Productivity
If all terminals synchronize with a base station in conventional time division multiplex systems, then communication order is controlled, but device complexity increases due to sophisticated synchronization mechanisms
Solution Approach 1:
The invention extracts the synchronization function from a centralized base station and distributes it among terminal stations. Each terminal uses the beacon signal from another terminal to determine its own transmission timing, eliminating the need for sophisticated centralized synchronization mechanisms while maintaining effective communication order control.
4Productivity
If a control station is arranged at the center of the network for time division multiplexing, then communication coordination is improved, but device complexity increases
Solution Approach 1:
Terminal stations perform time division multiplexing autonomously by using beacon signals to determine their own transmission slots. This self-organized approach eliminates the need for a centralized control station, maintaining effective communication coordination while significantly reducing network structure complexity.
Data Source
AI summary
A wireless communication apparatus, a wireless communication system, and a wireless communication method enabling any plurality of apparatuses to engage in time division multiplex communication for communicating a plurality of data even if not all apparatuses in the network are accurately synchronized, perform a time division multiplex connection method of an autonomous distributed network that performs a continuous receiving (scan) operation over a frame period so as to obtain a grasp of the wireless communication apparatuses located at the neighborhood at predetermined periods, that includes the steps of receiving beacon signals from other wireless communication apparatuses to obtain a grasp of the wireless communication apparatuses that they are communicable with, calculating the reception slot of the wireless communication apparatus from the received beacon information, setting its own reception slot so as not to collide with the set situation thereof, and forming network autonomously engaging in time division multiplex communication with other wireless communication apparatuses located at the neighborhood.