WUSB Multi-Host Access via Beacon Information Sharing
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Solution Overview
Problem
Conventional wireless universal serial bus (WUSB) standards limit the number of hosts that can be supported within a given range, making it difficult to establish complex network connections, especially in mobile Personal Area Networks (PANs, due to the arbiter-based architecture which only allows one WUSB host per network and limited communication channels.
Innovation Solution
A WUSB system and method that enables multiple hosts to access a single device by using a beacon mechanism to share new host information, allowing multiple hosts to communicate with a device through a Distributed Reservation Protocol (DRP) and Micro-scheduled Management Command (MMC), enabling multiple hosts to be connected within the same network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an arbiter-based wireless network architecture is used to manage WUSB devices, then network control and data transfer reliability are improved, but the number of supported hosts is limited to one per network
Solution Approach 1:
The network architecture is segmented into multiple virtual networks, each with its own arbiter and host capabilities. This allows the system to maintain reliable arbiter-based control within each segment while supporting multiple hosts across the overall network by dividing the single network into multiple manageable segments.
Solution Approach 2:
The patent introduces a new dimension to the network architecture by allowing hosts to operate in both arbiter-based and non-arbiter-based modes simultaneously. This dimensional change enables multiple hosts to coexist in the network without compromising the reliability provided by the arbiter mechanism, as different hosts can operate in different dimensional spaces of the same network.
2Ease of operation
If a single arbiter-based wireless network is established, then network management is simplified, but multiple hosts cannot access the same device
Solution Approach 1:
The network architecture is designed with universal compatibility to support both single-host and multi-host configurations. The system can dynamically adapt its operation mode based on the number of hosts present, maintaining simplified management for single-host scenarios while enabling multi-host access when needed, thus providing multi-functionality across different operational contexts.
Solution Approach 2:
The patent introduces intermediary mechanisms that facilitate communication and coordination between multiple hosts and the arbiter. These intermediaries enable hosts to access shared devices without direct arbiter intervention for every transaction, thus maintaining ease of network management while enabling multi-host access capabilities through the intermediary coordination layer.
3Object-affected harmful factors
If conventional WUSB standards are followed with limited communication channels, then interference is reduced, but network flexibility and host capacity are constrained
Solution Approach 1:
The network architecture dynamically adjusts its communication channel allocation and host capacity based on real-time network conditions. Rather than being constrained by fixed channel limits, the system can dynamically activate additional channels and adjust host access permissions, thereby maintaining low interference through controlled channel usage while achieving high network flexibility when needed.
Data Source
AI summary
Disclosed is a wireless universal serial bus system that includes a device; a first host communicating with the device according to a wireless universal serial bus protocol; and a second host communicating with the device according to a wireless universal serial bus protocol, wherein when the first host receives a beacon from the second host, the first host provides new host information read out from the beacon to the device.