Base Station Controller Precoding for Multi-Antenna Support
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Solution Overview
Problem
Current 5G technology faces challenges in supporting multiple antennas with a single machine or processor and efficient communication between machines, particularly in software development and processing power for GPP-based radio systems.
Innovation Solution
A communication method and base station design that utilizes a controller, baseband processors, and RF circuits to generate and transmit precoding information for efficient data processing and modulation, enabling a single machine to support multiple antennas and improve communication efficiency by ensuring one-to-one correspondence between baseband processors and RF circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single machine or processor is used to support multiple antennas, then device complexity is reduced, but processing power becomes insufficient
Solution Approach 1:
The system segments the baseband processing function into a control unit and multiple independent baseband processing units. Each baseband processing unit handles specific antenna groups independently, allowing parallel processing that scales with the number of antennas while maintaining a single machine architecture. This segmentation enables the system to support more antennas without proportionally increasing overall system complexity.
Solution Approach 2:
The baseband processing units are designed as universal, identical modules that can handle multiple antenna groups. Each unit is multi-functional, capable of processing signals from different antenna groups through configurable parameters. This universality allows a single machine to support a large number of antennas by reusing the same processing unit multiple times rather than requiring specialized hardware for each antenna.
2Power
If multiple baseband processors are used to support more antennas, then processing power increases, but communication efficiency between machines decreases
Solution Approach 1:
The patent merges multiple baseband processing units into a single machine, sharing common resources such as memory, clock, and control logic. The control unit centrally manages all baseband processing units, coordinating their operations and data flow. This merging approach maintains high processing power through parallel baseband units while improving communication efficiency by eliminating inter-machine communication overhead and reducing latency through intra-machine data sharing.
3Power
If specialized chip or FPGA-based systems are used, then processing power is sufficient, but software development efficiency and quality decrease
Solution Approach 1:
The patent replaces specialized hardware systems (FPGA, ASIC, DSP) with a general-purpose processor-based system running software. The baseband processing functions are implemented as software modules on standard processors, allowing the use of mature software engineering methods for development, testing, and maintenance. This substitution maintains sufficient processing power through efficient software algorithms while dramatically improving software development efficiency and quality through standardized development tools and practices.
Data Source
AI summary
Disclosed are a communication method and a base station. The method includes: the base station, through a controller thereof, receiving a baseband signal to be transmitted which is sent by a first intelligent mobile terminal, generating precoding information for immediate data transmission according to a number of antennas and carrier information, sending the baseband signal and the precoding information to a baseband processor of the base station, processing the baseband signal by the baseband processor according to the precoding information, modulating the processed baseband signal, and sending the modulated signal through a radio frequency (RF) circuit.