Presence Server Content Sharing Policy
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Solution Overview
Problem
Existing communication systems do not effectively enable seamless content sharing among multiple devices associated with the same subscriber account or telephone line, limiting the ability to share broadcast or multicast content across related devices.
Innovation Solution
A method and system that utilize a presence server to identify and connect related devices sharing the same account or line, allowing content received by one device to be shared with others through a peer-to-peer connection or SIP protocol, while enforcing a sharing policy to restrict access to only related devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If content is shared among multiple devices using existing communication systems, then content accessibility is improved, but security and access control deteriorate due to lack of effective restriction mechanisms
Solution Approach 1:
The patent introduces a presence server as an intermediary component that mediates between content-sharing devices and non-related devices. The presence server stores presence information indicating whether devices are related, and the share module queries this information before enabling content sharing. This intermediary mechanism allows content sharing among related devices while preventing unauthorized access by non-related devices, thus resolving the contradiction between sharing capability and access control security.
2Reliability
If a sharing mechanism is implemented to restrict content access to related devices only, then security is improved, but system complexity increases due to additional presence server and verification requirements
Solution Approach 1:
The patent leverages the existing presence server infrastructure, originally designed for other communication functions, and repurposes it to store and provide presence information for content sharing verification. By making the presence server multi-functional, the patent avoids adding a completely new complex system while still achieving secure access control. The share module integrates the verification logic into the existing device architecture, minimizing additional complexity.
3Measurement precision
If presence information is retrieved and verified for each content sharing request, then access control precision is improved, but processing time increases
Solution Approach 1:
The patent performs presence information retrieval and verification as a preliminary action before enabling content sharing. The share module queries the presence server to determine if devices are related, and only after successful verification does it enable the share function. This preliminary verification ensures precise access control while establishing clear verification boundaries, preventing repeated verification delays during actual content sharing operations.
Data Source
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AI summary
Methods and computing systems for sharing content between related devices in a cellular network are described. A first device receives content from an external content source via a wireless connection, and causes presentation of the content on an output device of the first device. The first device retrieves information for one or more related devices that utilize the same telephone number the first device for sending and receiving at least cellular communications via the cellular network. The first device enables sharing of the content with at least one related device of the one or more related devices.