Proximity Discovery Area Using Social Network Event Detection
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Solution Overview
Problem
Existing device-to-device proximity services face challenges in efficient discovery and communication, particularly in reducing power consumption and implementing asynchronous discovery methods without constant querying, which affects battery life and overall efficiency.
Innovation Solution
The technique employs social network information to detect events through tagged messages, establishing a proximity service area and selecting a host user equipment device for direct discovery, enabling device-to-device communication without constant querying or permanent discovery facilities, using a processor and memory device to manage the detection and triggering of device-to-device communication based on location and attributes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the transmitter or sensor is enabled at all times to facilitate discovery, then discovery capability is improved, but battery consumption increases
Solution Approach 1:
The system implements periodic discovery beacons transmitted at specific time intervals rather than continuous transmission. Devices enter low-power states between beacon transmissions, achieving periodic discovery action that maintains capability while reducing energy consumption.
Solution Approach 2:
The system pre-configures discovery parameters, time slots, and transmission schedules before actual discovery operations begin. This preliminary setup allows devices to operate in predictable patterns with optimized power consumption rather than continuously monitoring or transmitting.
2Use of energy by moving object
If synchronous discovery is implemented during predetermined timeslots, then power consumption is reduced, but implementation difficulty increases
Solution Approach 1:
The base station acts as an intermediary that coordinates and manages the synchronous discovery process. It assigns time slots, manages beacon transmissions, and handles the complexity of synchronization, thereby reducing the implementation burden on individual user devices while maintaining power efficiency.
3Ease of operation
If asynchronous continuous searching is implemented, then ease of implementation is improved, but power consumption increases
Solution Approach 1:
The system transforms continuous asynchronous searching into periodic discovery events where devices transmit or listen for beacons at predetermined intervals. This maintains relative simplicity of implementation while dramatically reducing power consumption by allowing devices to sleep between periodic discovery attempts.
4Productivity
If device-to-device communication is established without base station intervention, then spectrum utilization is improved, but discovery efficiency decreases
Solution Approach 1:
The base station serves as a mediating entity that facilitates the discovery phase by coordinating beacon transmissions and managing device pairings. Once discovery is complete and direct links are established, the base station steps back, allowing autonomous device-to-device communication to proceed with high spectrum utilization.
Solution Approach 2:
The base station performs preliminary discovery coordination and device pairing before autonomous communication begins. This preliminary action reduces the time devices would otherwise spend searching and negotiating connections independently, enabling faster transition to efficient direct communication.
Data Source
AI summary
An automatic proximity discovery area technique uses available social network information to establish a proximity service area and to select and enable one or more host user equipment devices for device-to-device proximity services. The automatic proximity discovery area technique reduces power consumption for device-to-device proximity service discovery and communications. The technique uses social network messages to detect events and initiate discovery of the device-to-device communications in a proximity discovery area without constant querying or permanent discovery facilities, thereby reducing power consumption of device-to-device proximity services.