Dual Buffer Memory Architecture for RF Signal Processing
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Solution Overview
Problem
Conventional wireless transceivers with single buffer memories face inefficiencies due to their inability to transmit and receive signals simultaneously, leading to limited data throughput and ineffective data transmission when the buffer cannot be fully filled within a short period.
Innovation Solution
The RF signal processing apparatus employs dual buffer memories with a controller that manages data transmission between the buffers and the host interface, allowing one buffer to operate for transmission while the other operates for reception within the same time slot, thereby enabling simultaneous data transmission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single buffer memory is used in conventional wireless transceivers, then the device complexity is reduced, but the data throughput and transmission efficiency deteriorate because the buffer cannot transmit and receive simultaneously
Solution Approach 1:
The buffer memory is segmented into multiple independent buffers (first buffer, second buffer, third buffer, fourth buffer) that can operate simultaneously. Each buffer handles specific transmission or reception tasks, allowing parallel data processing and eliminating the bottleneck of single-buffer sequential operation.
Solution Approach 2:
The patent transitions from a single-dimensional buffer operation (one buffer handling all tasks sequentially) to a multi-dimensional buffer architecture where multiple buffers operate in parallel across different time slots and functional dimensions (transmission vs. reception), thereby increasing throughput without proportionally increasing complexity.
2Productivity
If a single buffer memory operates sequentially, then the device structure is simplified, but the transmission effectiveness deteriorates when the buffer cannot be fully filled within a short period
Solution Approach 1:
Data is pre-filled into multiple buffers before transmission begins. The controller prepares data in advance across multiple buffer segments, ensuring that transmission can start immediately without waiting for sequential buffer filling, thereby eliminating idle time and improving transmission effectiveness.
Solution Approach 2:
The multi-buffer architecture enables continuous data flow by eliminating idle periods between buffer fills. While one buffer is being transmitted, another is being filled, ensuring that the transmission pipeline remains continuously active and maximizing the utilization of transmission resources.
3Productivity
If dual buffer memories are used for simultaneous transmission and reception, then the data throughput is improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple buffer functions (transmission buffers and reception buffers) into a unified buffer memory structure that is managed by a single controller. This integration allows simultaneous transmission and reception operations while avoiding the complexity of completely separate memory systems, achieving functionality consolidation without excessive complexity.
Solution Approach 2:
The buffer memory structure is designed to be multi-functional, serving both transmission and reception purposes through different buffer segments. The same memory infrastructure handles multiple tasks (first buffer for transmission, second buffer for reception, etc.), reducing the need for dedicated separate memory systems and thereby controlling complexity while enabling full-duplex operation.
Data Source
AI summary
The disclosure is related to an RF signal processing apparatus. The apparatus includes a processor and a buffer memory circuit. The apparatus includes a host interface for connecting with a host and an RF circuit for transmitting and receiving RF signals. The processor processes the RF signals to or from the RF circuit. The processor converts the received RF signals into data, or converts the data into the RF signals to be transmitted. The buffer memory circuit has a controller and two buffer memories. This memory architecture allows a system to assign a task to a first buffer memory and another task to a second buffer memory without restricting that the conventional buffer memory is limited to doing one task at a time. This memory architecture can solve inefficiency problems due to insufficient data transmission since the conventional buffer memory cannot be filled within a limited time period.