Proxy Discovery for Wireless Peer-to-Peer Connection
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Solution Overview
Problem
Current wireless peer-to-peer discovery methods in radio communication technologies face challenges in minimizing power consumption and ensuring all proximate devices are detected, particularly for battery-powered requestor devices that need to frequently broadcast discovery signals, leading to rapid battery depletion.
Innovation Solution
A method where a proxy discovery device, with a larger power capacity, performs the discovery process on behalf of the requestor device, providing a proxy report with relevant provider devices that match the requestor's criteria, allowing the requestor to establish a connection during optimized time windows and carrier channels, thereby reducing power consumption and increasing detection probability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the requestor device frequently broadcasts discovery signals to detect proximate devices, then the detection probability is improved, but the power consumption increases rapidly
Solution Approach 1:
The patent introduces a proxy discovery device as an intermediary between the requestor device and provider devices. The proxy discovery device performs discovery operations on behalf of the requestor device, which remains in a low-power state. This mediator approach allows the requestor to benefit from discovery results without directly engaging in power-intensive broadcasting and listening operations, thereby resolving the contradiction between detection probability and power consumption.
2Loss of time
If the requestor device remains in an awake state to receive discovery information, then the response time is improved, but the power consumption increases
Solution Approach 1:
The proxy discovery device performs discovery operations and prepares discovery information in advance before the requestor device needs it. The proxy device maintains an updated list of proximate provider devices and their characteristics, so when the requestor device wakes up, the information is already ready for immediate transmission. This preliminary action by the proxy device eliminates the need for the requestor to remain awake during the discovery process, reducing power consumption while maintaining fast response time.
3Reliability
If the requestor device performs continuous discovery operations, then the discovery completeness is improved, but the battery life decreases
Solution Approach 1:
The proxy discovery device acts as a dedicated discovery performer that continuously monitors for provider devices and maintains comprehensive discovery information. The requestor device can rely on the proxy to ensure complete discovery coverage without needing to perform its own continuous discovery operations. This division of labor allows the requestor to preserve battery life while still achieving complete discovery through the proxy's continuous operation.
Solution Approach 2:
The proxy discovery device performs more discovery operations than the requestor device would need to perform itself, maintaining an updated and comprehensive list of provider devices. This excessive action by the proxy ensures that when the requestor device does wake up, it receives complete and current discovery information without having to spend energy verifying or completing the discovery process itself.
Data Source
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AI summary
A mobile communication device may include a radio transceiver and a baseband processing circuit adapted to interact with the radio transceiver to transmit and receive radio signals. The baseband processing circuit may be configured to provide target criteria to a proxy discovery device, the target criteria characterizing a desired wireless connection of the mobile communication device, receive a proxy report from the proxy discovery device detailing discovery results that satisfy the target criteria, and select a provider device that satisfies the target criteria to establish a wireless connection with based on the proxy report.