Unified API for Cross-Technology Peer Discovery
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Solution Overview
Problem
Current wireless communication systems, particularly in LTE technology, face challenges in efficient peer-to-peer discovery due to limitations in range, periodicity, and the need for multiple APIs for different communication systems, leading to suboptimal performance and power consumption.
Innovation Solution
A method involving the transmission of a first set of information in a first peer discovery signal with specific periodicity and range, generating an identifier based on this information, and transmitting a second set of information in a second peer discovery signal with different periodicity and range, where the second set is associated with the first through a hash value, allowing for unified cross-technology discovery across varying communication systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If peer discovery signals are transmitted with long periodicity to conserve power, then power consumption is reduced, but discovery range and efficiency deteriorate
Solution Approach 1:
The discovery signal is segmented into two types: type 1 discovery signals transmitted with long periodicity for power conservation, and type 2 discovery signals transmitted with short periodicity for enhanced discovery efficiency. The receiving device can selectively process type 2 signals for faster discovery while the transmitting device maintains power efficiency through long-period type 1 transmissions.
Solution Approach 2:
The system dynamically adjusts discovery signal transmission based on device state and requirements. The transmitting device can switch between long-periodic type 1 signals for power saving and short-periodic type 2 signals when active discovery is needed, allowing adaptive optimization of both power consumption and discovery efficiency.
2Adaptability or versatility
If multiple APIs are used for different communication systems, then compatibility across systems is improved, but device complexity increases
Solution Approach 1:
A single unified API is designed to handle multiple peer discovery systems (LTE, Wi-Fi, Bluetooth) through a common interface. The API accepts discovery signals from different technologies and processes them uniformly, eliminating the need for separate APIs for each communication system while maintaining full compatibility.
Solution Approach 2:
The unified API acts as an intermediary layer between diverse peer discovery systems and the application layer. It translates and normalizes discovery signals from different technologies into a common format, allowing applications to interact with multiple systems through a single standardized interface without dealing with technology-specific complexities.
3Length of moving object
If discovery range is extended to improve peer detection, then discovery capability is enhanced, but false associations increase
Solution Approach 1:
Different portions of the discovery signal have specialized functions: type 1 signals provide long-range detection capability, while type 2 signals provide short-range verification. The receiving device uses location-aware processing to determine whether to respond to type 1 or type 2 signals based on estimated distance, ensuring accurate associations only when devices are in appropriate proximity.
Solution Approach 2:
The system performs preliminary long-range detection using type 1 discovery signals to identify potential peers before initiating short-range verification with type 2 signals. This two-stage approach allows the device to first expand discovery range for detection, then confirm valid associations through proximity-based type 2 signal exchange, preventing false associations.
Data Source
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AI summary
A method and an apparatus for wireless communication are provided. In one aspect, the apparatus may be a user equipment (UE), base station, or access point. The apparatus broadcasts peer discovery information in a high-level expression data structure that supports multiple discovery technologies from a variety of wireless networks. By using the high-level expression data, the apparatus may use a single, unified discovery application programming interface for signaling the presence of any supplemental cross-technology discovery information as such information became available. In another aspect, the apparatus may be a UE. The apparatus receives the broadcasted high-level expression data in a peer discovery signal and processes the data.