MIMO Preprocessing Apparatus Single Cable Frequency Allocation
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Solution Overview
Problem
MIMO systems for terrestrial broadcast face challenges in increased complexity, hardware requirements, and the need for additional cables, making it difficult to adopt new transmission standards, especially for existing consumer home installations with single coaxial cables.
Innovation Solution
A MIMO receiving and preprocessing apparatus that efficiently uses a single cable by generating and utilizing channel allocation information to allocate MIMO receive signal components to different frequency channels, avoiding collisions and interferences, and allowing for the reuse of existing cable infrastructure without the need for a second cable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If MIMO transmission is implemented with two separate cables, then the MIMO receive signal components can be transmitted without interference, but the installation complexity and costs increase significantly
Solution Approach 1:
The patent combines two separate MIMO receive signal components onto a single cable by allocating them to different frequency channels. The first MIMO receive signal component is transmitted on a first frequency channel and the second MIMO receive signal component is transmitted on a second frequency channel, both over the same physical cable infrastructure, thereby eliminating the need for two separate cables while maintaining signal integrity
Solution Approach 2:
The patent transitions from spatial separation (two separate cables) to frequency separation (different frequency channels on the same cable). By moving the differentiation dimension from physical cable identity to frequency domain, the system achieves MIMO signal separation without requiring multiple physical cables, thus reducing installation complexity
2Adaptability or versatility
If MIMO transmission is implemented with frequency channel allocation, then a single cable can carry multiple signal components, but frequency resource management becomes more complex
Solution Approach 1:
The patent performs frequency channel allocation in advance before signal transmission. The system pre-assigns the first MIMO receive signal component to a first frequency channel and the second MIMO receive signal component to a second frequency channel, establishing a clear frequency resource map that simplifies subsequent signal processing and transmission operations
Solution Approach 2:
The patent introduces channel allocation information as an intermediary data structure that mediates between the frequency resources and the MIMO signal components. This information acts as a lookup table or mapping mechanism that simplifies the complex frequency resource management by providing direct access to the assigned frequency channels for each signal component
Data Source
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AI summary
A MIMO receiving system comprises a MIMO antenna apparatus that receives a MEVIO transmission signal comprising at least two MEVIO transmission signal streams, wherein said MIMO transmission signal comprises one or more MEVIO transmission channels and wherein a MEVIO transmission channel carrying one or more services comprises two MEVIO receive signal components covering the same frequency channel and being included in different transmission signal streams. A MEVIO preprocessing apparatus preprocesses said MIMO transmission signal and outputs a multiplex signal. One or more receiving apparatus receive said multiplex signal from said output signal path to use a service contained in said single multiplex signal and output a service data stream.