Bluetooth Relay Node Using Orthogonal Multi-Carrier Modulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional Bluetooth technologies face limitations in extending communication distance and maintaining bandwidth for reliable music sharing across multiple rooms, with existing multi-hop and mesh networks compromising on effective bandwidth and introducing compatibility issues.
Innovation Solution
The implementation of a wireless communication method using narrowband orthogonal multi-carrier modulation technology to modulate and transmit Bluetooth data, enhancing spectrum utilization and receiving sensitivity, thereby expanding communication distance and increasing transmission rates without increasing transmission power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If Bluetooth multi-hop or mesh network is used to extend communication distance, then communication range is extended, but effective bandwidth becomes smaller and smaller after multiple data forwardings
Solution Approach 1:
The patent introduces a relay node as an intermediary device that receives Bluetooth data from a first device and re-transmits it to a second device. This relay node approach allows extension of communication range beyond the direct Bluetooth range limit while maintaining bandwidth by avoiding the multi-hop forwarding problem where each relay reduces the effective bandwidth. The relay node acts as a dedicated intermediary that handles the entire data transmission burden.
Solution Approach 2:
The communication system is segmented into distinct functional components: a first wireless communication device for receiving Bluetooth data, a relay node for modulation and re-transmission, and a second wireless communication device for receiving the modulated signal. This segmentation allows each component to be optimized independently, with the relay node specifically designed to maintain bandwidth while extending range.
2Length of stationary object
If more nodes are added to extend communication distance in Bluetooth network, then communication distance is extended, but system complexity increases and compatibility concerns arise
Solution Approach 1:
The relay node is designed with multi-functionality, serving both as a Bluetooth receiver (receiving data from the first wireless communication device) and as a modulator/re-transmitter (sending modulated signals to the second wireless communication device). This universal design simplifies the overall system by reducing the number of specialized components needed while extending communication distance.
3Length of stationary object
If conventional communication technologies such as WiFi are used to forward Bluetooth data, then communication distance is extended, but underlying system becomes complicated and compatibility concerns are introduced
Solution Approach 1:
The patent uses a relay node as an intermediary that bridges Bluetooth and wireless communication technologies. The relay node receives Bluetooth data and re-transmits it via wireless connection, acting as a mediator that extends Bluetooth range without requiring the Bluetooth devices themselves to implement complex WiFi infrastructure or face compatibility issues with existing Bluetooth devices.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach effectively extends the communication distance and enhances the transmission rate of Bluetooth devices, addressing the limitations of conventional Bluetooth systems while maintaining compatibility and reducing power consumption.
Implementation Method 1
modulating the Bluetooth data to generate a modulation signal according to a narrowband orthogonal multi-carrier modulation technology
Implementation Method 2
transmitting the modulation signal to a data receiving device through the antenna and the Bluetooth radio frequency transceiver module
Data Source
AI summary
A technique for Bluetooth wireless communication is described. According to one aspect of the technique, Bluetooth data from a data source is received in a first wireless device through an antenna and a Bluetooth radio frequency transceiver thereof via a Bluetooth connection with the data source. The Bluetooth data is used to generate a modulation signal according to a narrowband orthogonal multi-carrier modulation technology. The modulation signal is transmitted to a second wireless device through the antenna and the Bluetooth radio frequency. The antenna and the Bluetooth radio frequency transceiver are time-multiplexed by the Bluetooth connection between the first wireless device and the data source, and the wireless connection between the first wireless device and the second wireless device. The described technique can be advantageously used for expanding the distance of Bluetooth wireless propagation of Bluetooth devices.