Wireless Communication Apparatus Adaptive Signal Processing
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Solution Overview
Problem
Current wireless communication technologies face challenges in efficiently transmitting high-rate data, particularly in high-frequency bands, which is essential for mass multimedia data transmission, such as uncompressed video and audio, due to limitations in existing standards like IEEE 802.11b/g/n, where high-frequency signals result in signal waste and image quality deterioration from compression.
Innovation Solution
The method involves a wireless communication apparatus and process that receives packets with sub-packets and processes them using multiple signal processing modes corresponding to different transmission modes, specifically employing High-Rate Physical (HRP) modes with adaptive antenna technology and error protection strategies like equal and unequal error protection (EEP and UEP) to optimize data transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If compressed A/V data is used for wireless transmission, then data transmission efficiency is improved, but image quality deteriorates due to compression loss
Solution Approach 1:
The patent segments the data transmission process into multiple sub-packets with different priority levels. Important data segments are transmitted with higher priority and better error protection, while less critical segments use lower priority. This allows the system to transmit compressed A/V data efficiently while maintaining acceptable image quality by ensuring critical data is delivered reliably.
Solution Approach 2:
The patent applies different error protection strategies to different parts of the data stream. Equal error protection is applied to critical data segments while unequal error protection is applied to less critical segments. This local differentiation allows the system to optimize both transmission efficiency and image quality by allocating resources strategically across different data portions.
2Speed
If high-frequency signals are used for mass data transmission, then transmission rate is improved, but signal waste increases
Solution Approach 1:
The patent implements dynamic adaptation of transmission parameters based on channel conditions. The system can switch between different modulation and coding rates depending on the current wireless environment, allowing high-frequency signals to be used at high rates when conditions permit while reducing power when conditions deteriorate, thus minimizing signal waste.
Solution Approach 2:
The patent changes transmission parameters such as modulation order and coding rate dynamically. By adjusting these parameters based on channel quality indicators, the system optimizes the balance between transmission rate and energy consumption, reducing signal waste while maintaining high throughput when possible.
3Adaptability or versatility
If multiple transmission modes are supported, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent segments the signal processing function into separate modules for different transmission modes. Each mode (e.g., first transmission mode with equal error protection, second transmission mode with unequal error protection) is handled by dedicated processing units that can operate independently, reducing the complexity burden on any single component while maintaining overall system versatility.
Solution Approach 2:
The patent designs a universal packet structure that can accommodate multiple transmission modes through standardized fields and protocols. This allows a single receiving device to handle multiple transmission modes by interpreting mode-specific parameters within a common framework, reducing complexity compared to requiring separate dedicated systems for each mode.
Data Source
AI summary
An apparatus and method for wireless communications are provided. The apparatus for wireless communications includes a receiving unit which receives a packet, which comprises a plurality of sub-packets, output from a transmitting device, and processes the received packet in a plurality of signal processing modes that correspond to a plurality of transmission modes applied to the received packet, and a media access control processing unit which acquires data from the sub-packets included in the processed packet.