Vehicle-Mounted Communication Module MIMO Architecture
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Solution Overview
Problem
Vehicle-mounted terminals face signal attenuation and limited antenna positioning, leading to inefficient communication and increased power consumption due to the use of multiple antenna technology in mobile communication systems.
Innovation Solution
A data transceiving method using a vehicle-mounted communication module with multiple antennas, establishing a wired or wireless data path to negotiate multiple-antenna capabilities with a base station, and converting data units into RF signals for transmission, leveraging the vehicle's resources to enhance MIMO communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple antenna technology is used in vehicle-mounted terminals, then communication capacity and data transmission efficiency are improved, but signal attenuation occurs due to glass or metal sheet of the vehicle and power consumption increases
Solution Approach 1:
The patent introduces a base station as an intermediary to perform physical layer computation and signal processing. Instead of the vehicle-mounted terminal performing all computations locally, the terminal transmits received signals to the base station, which then performs MIMO detection, channel estimation, and data recovery. This distributes the computational burden from the mobile terminal to the infrastructure, reducing terminal power consumption while maintaining high communication capacity.
Solution Approach 2:
The patent segments the MIMO communication system into two parts: the vehicle-mounted terminal handles signal reception and transmission, while the base station handles complex physical layer computations. This segmentation allows the terminal to use fewer antennas and less processing power, reducing power consumption, while the base station with more resources maintains high communication capacity through advanced MIMO processing.
2Productivity
If multiple antenna technology is used in vehicle-mounted terminals, then communication capacity is improved, but antenna positioning is limited due to size constraints
Solution Approach 1:
The base station acts as an intermediary that compensates for the terminal's limited antenna resources. The terminal uses fewer antennas suitable for its size constraints, while the base station, with its larger form factor and more powerful processing capabilities, performs complex MIMO operations including spatial multiplexing and diversity combining, thereby achieving high communication capacity despite the terminal's compact size.
Solution Approach 2:
The patent changes the operational parameters of the MIMO system by shifting the computational complexity from the terminal to the base station. The terminal operates with fewer antennas and lower processing power, while the base station operates with higher processing power and more antennas, creating an asymmetric MIMO configuration that accommodates the terminal's size constraints while maintaining high communication capacity.
3Adaptability or versatility
If physical layer computation is performed by the terminal, then communication flexibility is maintained, but communication performance deteriorates due to signal attenuation by vehicle structure
Solution Approach 1:
The base station serves as an intermediary that receives signals from the terminal after they have been attenuated by the vehicle structure. The base station performs advanced signal processing including MIMO detection, channel estimation, and equalization to compensate for the attenuation. This maintains communication flexibility at the terminal while improving reliability through the base station's powerful processing capabilities.
Solution Approach 2:
The patent creates an asymmetric communication architecture where the terminal and base station have different roles and capabilities. The terminal maintains flexibility with simpler hardware, while the base station provides reliability through sophisticated signal processing. This asymmetric division allows the system to overcome the signal attenuation problem caused by the vehicle structure while preserving terminal adaptability.
Data Source
AI summary
The present invention relates to a mobile communication system, and more specifically, to a method for providing an improved communication environment for a terminal using a vehicle provided with antennas, and to an apparatus for executing same. As related to one embodiment of the present invention, a data transceiving method for a terminal using a vehicle-mounted type communication module comprising a plurality of antennas comprises the steps of: establishing a wire data path with the communication module; negotiating multiple-antenna capabilities with a base station using multiple-antenna capabilities information of the communication module; and transmitting to the communication module multiple-antenna transmission parameters on the basis of the negotiation, and a data unit comprising uplink data to be transmitted to the base station, wherein the data unit, which has been generated in the medium access control (MAC) layer of the terminal and then converted into a radio frequency (RF) signal in the physical layer (PHY) of the communication module, can be transmitted to the base station using the plurality of antennas.