Wireless Multicast Service Transmission for Remote Broadband Access
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Solution Overview
Problem
The high cost and complexity of deploying optical fibers for broadband access in old and remote areas, as well as the need for efficient support of multicast services like IPTV in wireless networks, particularly for internet television services.
Innovation Solution
A multicast service transmission method involving a management device, gateway device, and access network device to manage and facilitate multicast services by sending or stopping data packets, updating member lists, and configuring modes of transmission to support multicast services in wireless access systems, reducing operational costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If optical fibers are deployed to provide broadband access in old and remote areas, then network speed and broadband service quality are improved, but construction costs and deployment complexity increase significantly
Solution Approach 1:
The patent replaces the mechanical deployment of optical fibers with a wireless communication system. The network device transmits multicast service data packets wirelessly to terminal devices through radio access networks, eliminating the need for physical fiber optic cable installation in remote and old areas, thus reducing deployment complexity while maintaining network speed performance
2Reliability
If optical fibers are deployed to provide broadband access, then broadband service quality is improved, but construction costs increase significantly
Solution Approach 1:
The patent substitutes wireless transmission infrastructure for expensive optical fiber construction. By using existing wireless network devices and radio access networks to deliver multicast services, the system achieves reliable broadband service quality without the high construction costs associated with laying optical fibers in remote areas
Solution Approach 2:
The wireless network device is designed to perform multiple functions: it can provide both unicast services and multicast services through the same infrastructure. The network device receives multicast service data packets and distributes them to multiple terminal devices simultaneously, making the wireless infrastructure universal and cost-effective for various broadband applications
3Adaptability or versatility
If multicast services are supported in wireless access systems, then service compatibility and cost-effectiveness are improved, but network management complexity increases
Solution Approach 1:
The patent introduces a network device as an intermediary between the content server and terminal devices. This network device receives multicast service data packets from content servers, manages the distribution to multiple terminal devices, and handles join/leave requests. By centralizing management functions in the network device, the system achieves service compatibility while controlling network management complexity
Data Source
AI summary
A multicast service transmission method includes: a management device that receives a first message; the management device based on the first message, instructs a gateway device to send a data packet of the first multicast service to the terminal device or the access network device, or the management device instructs a gateway device to stop sending a data packet of the first multicast service to the terminal device or the access network device.