Service Forwarder for Single-Antenna Wireless Channel Switching
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Solution Overview
Problem
Single-antenna devices in IEEE 1609 wireless communication systems can only monitor and transmit data on a single channel at a time, limiting their ability to access multiple services distributed across different channels.
Innovation Solution
A system and method where a user communicates with a service forwarder to access additional services by switching between control and service intervals, using a specified forwarding channel to transmit selective control and service information, allowing a single-antenna device to use multiple service channels simultaneously.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-antenna device monitors only one channel at a time, then the device complexity is reduced, but the adaptability to access multiple services on different channels deteriorates
Solution Approach 1:
The patent introduces a service forwarder as an intermediary device that has multiple antennas and can monitor multiple service channels simultaneously. The service forwarder receives service information from multiple channels and forwards selected services to the single-antenna user device, enabling the user to access multiple services without requiring multiple antennas.
2Adaptability or versatility
If a single-antenna device switches between control channel and service channels, then the device can access multiple services, but the loss of time for channel switching increases
Solution Approach 1:
The service forwarder performs preliminary actions by continuously monitoring multiple service channels and pre-receiving service information in advance. When the user device needs a service, the forwarder already has the information ready to forward, eliminating the need for the user device to perform time-consuming channel switching to obtain service information.
3Productivity
If multiple service channels are used simultaneously, then the channel utilization increases, but the device complexity for monitoring multiple channels increases
Solution Approach 1:
The patent segments the channel monitoring function from the service reception function. The service forwarder handles the complex task of monitoring multiple service channels and managing multiple antennas, while the user device focuses on receiving services. This segmentation allows high channel utilization without requiring the user device to have complex multi-channel monitoring capabilities.
Data Source
AI summary
A system for data transmission on wireless alternating switching channels comprises a user, which allows a user to have at least an additional service on multiple service channels. The user sends at least a service forwarder a request to get at least an additional service, and receives the replied information of a specified forwarding channel. Before the connection between the user and the service forwarder fails or ends, the user receives original service and the service forwarder uses a specified service channel and transmits or receives additional service data for the user in the service channel interval; while in the control channel interval, the service forwarder uses the specified forwarding channel and transmits selective control message and selective additional data for the user, and the user switches to the specified forwarding channel to receive the selective control messages and the selective additional data.