60 GHz MIMO Controller Antenna Signal Separation
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Solution Overview
Problem
In 60 GHz wireless communications systems, multiple terminals connected to a single controller over the same channel experience decreased communication speeds as the number of terminals increases, limiting high-speed data transmission.
Innovation Solution
A control apparatus with multiple antennas uses a multiple-input-multiple-output (MIMO) scheme to separate and manage data signals from each terminal by predicting channel matrices and noise, allowing simultaneous connections without degrading data rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If different channels are used for different terminals, then the sum of communications speed of each terminal remains constant, but the communications speed between each terminal and the controller decreases in inverse proportion to the number of terminals
Solution Approach 1:
The patent merges multiple channels into a single channel by using MIMO technology. Multiple terminals transmit signals simultaneously over the same frequency band, and the controller uses multiple antennas to receive and separate these signals. This combining approach allows the sum of communications speed to increase while maintaining high speed for each individual terminal.
Solution Approach 2:
The patent transitions from single-antenna spatial separation to multi-antenna spatial dimension separation. By introducing multiple antennas at the controller, the system creates additional spatial dimensions to distinguish between signals from different terminals, enabling simultaneous high-speed communication on the same channel.
2Speed
If multiple terminals connect over an identical frequency band, then high speed data transmission is achieved, but signal separation and management becomes complex
Solution Approach 1:
The patent replaces complex signal processing mechanisms with channel matrix prediction. Instead of using complex adaptive signal separation algorithms, the system predicts the channel matrix based on terminal positions and uses this prediction to directly calculate signal values, simplifying the separation process while maintaining high speed transmission.
Solution Approach 2:
The patent performs preliminary channel matrix prediction before actual signal transmission. By predicting the channel characteristics in advance based on terminal positions and environments, the system prepares the separation parameters beforehand, reducing the complexity of real-time signal processing during data transmission.
Data Source
AI summary
A control apparatus for use in wireless communications includes an antenna unit having antennas, the number of the antennas being equal to a maximum allowable number of connections in a specific frequency band; and a controller for receiving a connection request signal from each terminal attempting to connect to the control apparatus via the antenna unit, and transmitting and receiving a data signal to and from each terminal connected to the control apparatus by using a multiple-input-multiple-output scheme. The controller transmit and receive the data signal to and from each terminal connected to the control apparatus by obtaining a signal value of each antenna based on a predicted channel matrix and the number and types of terminals connected to the control apparatus via the antenna and separating the data signal for each terminal from the signal value according to the multiple-input-multiple-output scheme.