MIMO Detection Matrix for Baseband Processing
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Solution Overview
Problem
The increasing scale of antennas in base station systems leads to significant data redundancy and transmission burdens on interfaces between front-end and backend devices, hindering miniaturization, installation, operation, and maintenance due to the high data traffic requirements of optic fibers.
Innovation Solution
Shifting part of the baseband processing functions, such as MIMO detection, to the front-end device reduces data redundancy by transmitting less redundant data, including codewords and resource mapping information, thereby alleviating the data transmission burden between the front-end and backend devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the scale of antennas is increased to improve system capacity and spectral efficiency, then the transmission capacity and spatial resolution are improved, but the data traffic burden on interfaces between front-end and backend devices increases significantly
Solution Approach 1:
The patent segments the baseband processing functions by introducing a front-end device that performs MIMO detection and related processing locally at the antenna side, separating this function from the backend device. This segmentation allows the backend to receive only processed results rather than raw high-volume data, reducing interface data traffic while maintaining the benefits of large-scale antenna systems.
2Quantity of substance
If more optic fibers are deployed to handle increased data traffic, then the data transmission capacity is improved, but the complexity of installation, operation, and maintenance increases
Solution Approach 1:
The patent extracts the MIMO detection and baseband processing functions from the backend device and places them in a front-end device located at the antenna side. This extraction reduces the volume of data that needs to be transmitted through optic fibers, thereby reducing the number of fibers required and simplifying installation and maintenance while still supporting large-scale antenna systems.
3Quantity of substance
If front-end processing is implemented to reduce data redundancy, then the interface data burden is reduced, but the device complexity at the front-end increases
Solution Approach 1:
The patent applies preliminary action by performing MIMO detection and baseband processing at the front-end device before data transmission to the backend. This preliminary processing reduces data redundancy and volume early in the signal chain, so that subsequent transmission and backend processing handle only essential processed data, offsetting the front-end complexity reduction elsewhere in the system.
Data Source
AI summary
The present application discloses a method and an apparatus for signal processing. In the present application, since a front end device in a base station system performs MIMO detection and related baseband-processing of a time domain signal received from an antenna unit and transmits the signal that is baseband-processed to a back end device of the base station system, the back end device merely performs other baseband processing, apart from the MIMO detection and the related baseband processing. Compared with the prior art, the embodiments of the present application move some of the baseband processing forward to be implemented on a front end device such that only the data of each scheduled user with less redundancy are required to be transmitted in an interface between the front end device and a backend device, reducing the pressure on the rate of data transmission between the front end device and the back end device.