HD Radio Broadcast Equipment Communication Protocol Data Link Manager
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Solution Overview
Problem
The existing broadcasting systems, such as the HD Radio system, lack a unified and efficient protocol for transferring information between diverse components, which hinders the seamless delivery of digital audio and data services, and does not provide adequate security features for data transmission.
Innovation Solution
The HD Radio Broadcast Equipment Communication Protocol (HDP) uses a stack comprising a Content Layer, Transmission and Authentication Layer, and optional Protection, Fragmentation, and Transportation Layer, along with a Data Link Manager that includes UDP and TCP receivers and a router, to ensure reliable and secure data transfer between components, utilizing UDP/IP and TCP protocols for routing and error correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a unified communication protocol is implemented for HD Radio system components, then the efficiency and reliability of data transfer between diverse components is improved, but the device complexity and implementation difficulty increase
Solution Approach 1:
The communication protocol is divided into distinct layers (application layer, transport layer, network layer, data link layer, physical layer), with each layer handling specific functions. This segmentation allows complex communication tasks to be broken down into manageable, standardized sub-functions, improving reliability while making implementation more systematic and less error-prone.
Solution Approach 2:
The patent introduces standardized interface specifications and protocol translation mechanisms that act as intermediaries between diverse HD Radio components. These intermediaries enable different equipment from various manufacturers to communicate reliably by translating between proprietary formats and the unified HDP protocol, reducing implementation complexity through standardization.
2Object-affected harmful factors
If security features are added to the communication protocol, then the security of data transmission is improved, but the processing overhead and system complexity increase
Solution Approach 1:
Security measures such as authentication and encryption are implemented at the protocol layer before data transmission occurs. The unified communication protocol incorporates security handshaking and key exchange mechanisms in advance, ensuring secure transmission without requiring complex point-to-point security implementations for each component pair.
3Adaptability or versatility
If multiple protocols (UDP and TCP) are supported for flexible data transfer, then the adaptability and versatility of the system is improved, but the device complexity and routing complexity increase
Solution Approach 1:
The Data Link Manager is designed with multi-functionality to handle both UDP and TCP protocols through a unified architecture. It can simultaneously manage connectionless UDP data transfers and connection-oriented TCP transfers, selecting the appropriate protocol based on service requirements. This universal design provides protocol flexibility while consolidating routing logic into a single intelligent component, reducing overall system complexity.
Data Source
AI summary
A data link manager includes a User Datagram Protocol (UDP) receiver for receiving HD Radio broadcast equipment communication protocol (HDP) data or non-HD Radio broadcast equipment communication protocol (non-HDP) data using a User Datagram Protocol/Internet Protocol (UDP/IP) protocol; a Transmission Control Protocol (TCP) receiver; and a router for receiving data from the UDP receiver and the TCP receiver, for searching for a destination route in a routing table, and for forwarding the data received from the from the UDP receiver and the TCP receiver to an identified destination route.