Mesh Network Transmission Rate via Spatial Precoding
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Solution Overview
Problem
Existing mesh networks have limited transmission rates due to the restriction that only one wireless network device can transmit data within the same signal range and time period, resulting in overall network inefficiency.
Innovation Solution
Implementing a method in wireless access devices with multiple antennas to enable simultaneous data transmission from multiple client terminals by determining channel state information and using precoding matrices for diversity and null processing, allowing multiple devices to transmit synchronously and efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If only one wireless network device is allowed to transmit data within the same signal range and time period, then transmission conflicts are avoided, but the overall transmission rate of the mesh network is limited
Solution Approach 1:
The patent segments the transmission resources by dividing the network into different signal ranges associated with different wireless access devices. Each access device manages its own transmission schedule independently, allowing multiple segmented transmission zones to operate simultaneously without conflict, thereby increasing overall network throughput while maintaining reliability within each segment
Solution Approach 2:
The patent introduces spatial dimensionality by utilizing multiple antennas at wireless access devices to create multiple signal ranges. This allows data transmission to occur in different spatial dimensions simultaneously, transforming the single-dimension time-sharing approach into a multi-dimensional concurrent transmission system that improves both reliability and transmission rate
2Productivity
If multiple wireless network devices transmit data simultaneously within the same signal range, then transmission rate increases, but signal interference and conflict occur
Solution Approach 1:
The patent applies local quality by creating distinct signal ranges with different transmission characteristics for each wireless access device. Each access device optimizes its transmission parameters locally within its signal range, allowing simultaneous transmissions at different locations without causing interference, thus achieving high transmission rates without signal conflict
Solution Approach 2:
The patent introduces transmission scheduling as an intermediary mechanism that coordinates simultaneous transmissions from multiple wireless access devices. The scheduling system acts as a mediator that allocates time slots and resources to prevent signal interference while maximizing overall transmission rate, enabling controlled concurrent transmissions without harmful interference
Data Source
AI summary
A client terminal sends a signal to a wireless access device. The wireless access device receives the signal, determines channel state information corresponding to the client terminal according to identity information of the client terminal in the signal, and calculates data sent by the client terminal according to the channel state information and the signal. The client terminal sends a request signal for acquiring channel state information, wherein the request signal includes identity information of the client terminal. The wireless access device receives the request signal, obtains the channel state information corresponding to the client terminal according to the identity information of the client terminal in the request signal, and sends the obtained channel state information to the client terminal. The client terminal receives the channel state information and the signal and calculates the data sent to the client terminal according to the channel state information and the signal.