Multi-Level Service Discovery for Wireless Devices
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Solution Overview
Problem
In densely populated wireless device environments, existing service discovery protocols face challenges in efficiently identifying and providing services of interest due to signal clutter and increased burden on wireless networks.
Innovation Solution
A multi-level service discovery approach is implemented, where wireless devices transmit three levels of information: a service type, a service identification, and service content, using various encoding techniques to facilitate matching and reduce clutter, allowing devices to determine partial or complete matches with user interests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If proactive service search is used in dense wireless environments, then service discovery capability is maintained, but network burden and signal clutter increase
Solution Approach 1:
The patent segments service information into three hierarchical levels: service type (first level), service identification (second level), and service content (third level). This segmentation allows devices to discover services in dense environments by progressively filtering information, reducing network burden compared to transmitting complete service details in proactive searches.
Solution Approach 2:
The patent implements partial action by transmitting only the first level (service type) information proactively in dense environments, rather than complete service information. Devices can then perform targeted second and third level discoveries only when needed, reducing overall network burden while maintaining service discovery capability.
2Measurement precision
If complete service information is transmitted, then service matching accuracy is improved, but information transmission overhead increases
Solution Approach 1:
Service information is divided into three levels: service type (first level), service identification (second level), and service content (third level). This segmentation enables progressive disclosure where complete information is only transmitted when needed, achieving accurate service matching while minimizing transmission overhead in dense environments.
Solution Approach 2:
The patent performs preliminary filtering at the first level by transmitting service type information before complete service details. This preliminary action allows devices to filter out irrelevant services early, reducing the quantity of information that needs to be transmitted while maintaining the ability to achieve complete matching accuracy when necessary.
3Productivity
If multi-level information transmission is implemented, then service discovery efficiency is improved, but protocol complexity increases
Solution Approach 1:
The patent segments service information into three manageable levels with clear hierarchical relationships. Each level serves a specific purpose in the discovery process, improving service discovery efficiency through structured information progression while keeping protocol complexity manageable through the systematic organization of information types.
Solution Approach 2:
The patent implements dynamic information transmission where the depth of discovery (first, second, or third level) adapts based on environmental conditions and device needs. This dynamic approach improves service discovery efficiency by transmitting appropriate information levels selectively, while protocol complexity is managed through consistent hierarchical structure that devices can navigate flexibly.
Data Source
AI summary
Examples are disclosed for multi-level service discovery. In some examples, a first level of information indicating a service type for a service provided by a first wireless device may be transmitted by the first wireless device to another wireless device. The first level may enable the other wireless device to determine whether the indicated service type at least partially matches a service interest. A second level may then be transmitted by the first wireless device that includes a service identification to enable the other wireless device to determine whether the service substantially matches a service interest for the other wireless device. A third level may then be transmitted from the first wireless device that includes service content information. The third level may be transmitted responsive to the other wireless device requesting the service content information. Other examples are described and claimed.