Dual-Module Wireless Connection for WiGig Range Limitations
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Solution Overview
Problem
WiGig wireless docking has a limited range and can only connect to a single apparatus, making it difficult to search or connect in practical applications due to its point-to-point communication and high frequency signal attenuation, resulting in short transmission distances.
Innovation Solution
A portable communication apparatus equipped with a first wireless communication module having a larger signal range (e.g., Bluetooth) and a second wireless communication module with a smaller but faster signal range (e.g., WiGig), allowing the apparatus to search and establish connections with peripheral devices using the first module and then obtain state information to facilitate high-speed connections with the second module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If WiGig wireless docking uses point-to-point communication on 60 GHz frequency band, then transmission speed reaches multi-gigabit per second, but transmission distance is limited to only 15 feet due to severe path attenuation
Solution Approach 1:
The patent segments the communication process into two distinct stages: a discovery stage using Bluetooth (2.4 GHz) for long-range device search and pairing, and a data transmission stage using WiGig (60 GHz) for high-speed wireless docking. This segmentation allows each communication protocol to operate in its optimal frequency range, with Bluetooth providing long-range discovery and WiGig providing high-speed transmission, thereby resolving the contradiction between transmission speed and transmission distance.
2Ease of operation
If WiGig wireless docking establishes connection with a single apparatus, then authentication is simplified using WPS mechanism, but other apparatuses cannot establish connection or search for the wireless docking
Solution Approach 1:
The patent introduces Bluetooth as an intermediary communication channel that operates in the discovery and pairing phase. The Bluetooth module (2.4 GHz) acts as a mediator that enables multiple apparatuses to discover and pair with the wireless docking before the actual WiGig connection is established. This intermediary approach allows the WiGig module to maintain its simple point-to-point authentication while Bluetooth handles the multi-apparatus discovery and initial connection, thereby resolving the contradiction between authentication simplicity and multi-apparatus adaptability.
Data Source
AI summary
A portable communication apparatus and a method for establishing a wireless connection thereof are provided. The method is adapted to the portable communication apparatus establishing the wireless connection with at least one peripheral apparatus by using a first wireless communication module and a second wireless communication module, in which a signal range of the first wireless communication module is larger than that of the second wireless communication module. In the present method, at least one peripheral apparatus located within the signal range of the first wireless communication module is searched by using the first wireless communication module, and a first wireless connection with the searched peripheral apparatus is established. Next, state information of a corresponding second wireless communication on each peripheral apparatus is obtained through the first wireless connection. Then, a second wireless connection with the at least one apparatus is established by using the second wireless communication module.