Split Control and Payload via M-MIMO Infrastructure
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Solution Overview
Problem
Massive Multiple Input Multiple Output (M-MIMO) communication systems face challenges in establishing connections due to directional transmissions, requiring significant airtime for channel estimation, making them less practical for shorter packets and more suited for longer data transmissions.
Innovation Solution
A split control and payload communication system using a combination of non-M-MIMO and M-MIMO infrastructure, where a first frequency band is used for establishing a channel with non-M-MIMO RAT for control information and a second frequency band with M-MIMO RAT for high-speed data transmission, enabling beamforming and efficient data communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If M-MIMO directional transmissions are used for data communication, then data transmission speed is improved, but connection establishment time and airtime overhead increase due to channel estimation requirements
Solution Approach 1:
The patent segments the communication system into two distinct parts: a control channel using non-M-MIMO technology for connection establishment and control signaling, and a data channel using M-MIMO technology for high-speed data transmission. This segmentation allows each channel to be optimized for its specific function, resolving the contradiction between fast connection establishment and high-speed data transmission.
2Measurement precision
If M-MIMO channel estimation procedures are performed, then directional beamforming accuracy is improved, but airtime overhead increases
Solution Approach 1:
The patent extracts the channel estimation and beamforming training procedures from the data transmission channel and relocates them to the control channel. This extraction allows the data channel to focus solely on high-speed data transmission while the control channel handles the overhead-intensive estimation procedures, thereby reducing airtime overhead for data transmission.
3Productivity
If non-M-MIMO control channel is used for connection establishment, then connection setup efficiency is improved, but data transmission capacity is reduced
Solution Approach 1:
The patent introduces a dimensional separation by using different frequency bands for control and data channels. The control channel operates on a first frequency band using non-M-MIMO technology for efficient connection establishment, while the data channel operates on a second frequency band using M-MIMO technology for high-capacity data transmission. This dimensional change allows both requirements to be satisfied simultaneously.
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 allows for efficient establishment of connections, reduces airtime overhead, and supports simultaneous control and data communication, improving data rates and practicality for both short and long packets in M-MIMO systems.
Implementation Method 1
Using M-MIMO antenna array 108, AP 102 can deliver extremely high downlink/uplink data rates to user devices 104a and 104b by transmit/receive beamforming to/from user devices 104a and 104b
Data Source
AI summary
Embodiments provide systems and methods for enabling a wireless multi-access communication system having a first frequency band and a second frequency band. The first frequency band can be used to establish a first channel using a non-Massive Multiple Input Multiple Output (M-MIMO) radio access technology (RAT). The first channel can be used to broadcast downlink/uplink control information (and, optionally, data) between an access point (AP) and a user device. The second frequency band can be used to establish a second channel using a M-MIMO RAT. The second channel can be used to communicate high speed downlink/uplink data between an AP and a user device. The non-M-MIMO RAT and the M-MIMO RAT can be of the same RAT family or of different RAT families.