Home Gateway Bandwidth Filtering for Remote Content Access
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Solution Overview
Problem
Existing home network systems face challenges in providing stable Internet Protocol Television (IPTV) services to wireless terminals outside the home network without degrading Quality of Service (QoS) and Quality of Experience (QoE) due to bandwidth limitations and remote access issues.
Innovation Solution
A method and apparatus that involve transmitting bandwidth information from the wireless terminal to the home gateway, setting this information as a filtering parameter, and generating a contents list based on the available bandwidth to ensure that only compatible content is accessed, preventing service degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a VPN is setup before content selection for remote access, then remote access capability is enabled, but Quality of Service degrades when bandwidth requirements exceed VPN settings
Solution Approach 1:
The patent applies preliminary action by determining the wireless terminal's bandwidth capability before establishing the VPN connection. The home gateway receives bandwidth information from the wireless terminal, determines appropriate VPN parameters based on this information, and then establishes the VPN connection with suitable bandwidth allocation. This ensures the VPN is configured with adequate bandwidth capacity before content access begins, preventing QoS degradation while maintaining remote access capability.
2Reliability
If VPN bandwidth is limited for security, then network security is improved, but content accessibility decreases when content bandwidth exceeds VPN settings
Solution Approach 1:
The patent applies dynamics by making the VPN bandwidth configuration adaptive rather than static. The system dynamically determines VPN bandwidth parameters based on the actual bandwidth capabilities of the wireless terminal and the bandwidth requirements of the requested content. The home gateway adjusts VPN settings to match both security requirements and content delivery needs, allowing the system to adapt to different content types and terminal capabilities while maintaining security.
3Adaptability or versatility
If UPnP device search is performed outside home network, then remote device discovery is enabled, but service reliability cannot be ensured due to IP multicast limitations
Solution Approach 1:
The patent applies the intermediary principle by introducing the home gateway as a mediator between the wireless terminal and the home network devices. Instead of relying on IP multicast for device discovery outside the home network, the wireless terminal communicates with the home gateway, which then facilitates device discovery and content access. The gateway acts as an intermediary that translates and manages communication between the remote terminal and home network resources, ensuring reliable service delivery.
Data Source
AI summary
Provided is a method for using home network contents of a wireless terminal located outside a home network. The method includes transmitting bandwidth information and wireless terminal information to a contents storage device, when a home gateway receives a remote access request message including the bandwidth information from the wireless terminal; setting, by the home contents storage device, the bandwidth information as a filtering parameter for the wireless terminal; filtering, by the contents storage device, contents available for the wireless terminal and generating a contents list corresponding to the wireless terminal by using the filtering parameter, upon receiving a request for the contents list; and transmitting the generated contents list to the wireless terminal.