AV Data Transmission Frequency Band Switching
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Solution Overview
Problem
Current wireless communication systems, particularly those using the 60 GHz Band, face challenges with short range and line-of-sight transmission properties, leading to interruptions when the content source moves out of range or is blocked, and there is a need for seamless transition from higher frequency (60 GHz) to lower frequency (2.4/5 GHz) communication to maintain uninterrupted AV content streaming.
Innovation Solution
A method and apparatus that format data content for transmission over different frequency bands, separating it into chunks to prevent buffer overflow, and using specific communication protocols like IEEE 802.11ad for 60 GHz and IEEE 802.11a/b/g/n for 2.4/5 GHz, with IEEE 802.11v for establishing transmission specifications to maintain synchronization, allowing seamless transfer between frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data content is transmitted over 60 GHz band using directional communication, then high data rate transfer is achieved, but transmission reliability deteriorates due to short range and line-of-sight requirements
Solution Approach 1:
The patent introduces a lower frequency band (2.4/5 GHz) as an intermediary communication channel to bridge the reliability gap when 60 GHz transmission fails. When the 60 GHz directional link is interrupted due to line-of-sight blockage or range limitations, the system automatically switches to the lower frequency band to maintain continuous AV content streaming, thus preserving transmission reliability while keeping the high-speed 60 GHz path as the primary channel.
Solution Approach 2:
The patent implements dynamic frequency band switching capability that adapts the communication channel based on real-time transmission conditions. The system continuously monitors the health of the 60 GHz link and dynamically transitions between 60 GHz and lower frequency bands, optimizing both data transfer rate and transmission reliability according to current environmental conditions and device positions.
2Reliability
If data content is separated into chunks for buffer management, then buffer overflow is prevented, but transmission complexity increases
Solution Approach 1:
The patent segments the continuous AV data content into discrete chunks or packets that can be individually managed and transmitted. This segmentation allows the receiving device to process and buffer data in controlled portions, preventing buffer overflow by regulating the flow rate and size of incoming data segments. The chunked transmission approach also enables better error handling and retransmission strategies.
Solution Approach 2:
The patent performs preliminary data formatting and chunking at the transmitting end before actual transmission begins. By pre-processing the data content into appropriately sized chunks with proper formatting headers and metadata, the system simplifies the receiving end's buffer management tasks and ensures that data arrives in a format ready for immediate processing without causing buffer overflow conditions.
3Reliability
If seamless transition between frequency bands is implemented, then transmission continuity is maintained, but protocol compatibility challenges arise
Solution Approach 1:
The patent implements a universal communication framework that can operate across multiple frequency bands (60 GHz and lower frequency bands) using a common protocol stack. The system design enables a single device to handle both high-speed 60 GHz directional communication and more robust lower frequency band communication through the same hardware and software architecture, eliminating the need for separate dedicated systems for each frequency band and simplifying the overall protocol adaptation process.
Data Source
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AI summary
A technique to switch high data rate content from higher frequency band transmission to lower frequency band transmission that uses Internet Protocol, without adding appreciable latency or jitter that may be manifested on a display.