Multi-Channel Wireless Transmission During Redundant Channel Switching
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Solution Overview
Problem
Existing wireless communication systems lose all packets of a user when switching to a redundant system due to instantaneous interruptions, regardless of packet priority.
Innovation Solution
A wireless communication system that transmits user signals over multiple frequency channels, including an active and redundant system, with a division and distribution unit to distribute signals across channels, a switching unit to switch abnormal channels to redundant channels, and a combination unit to recombine signals for each user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If one user occupies one frequency channel for packet transmission, then the system structure is simple, but all packets of one user are lost during instantaneous interruption when switching to redundant system
Solution Approach 1:
The patent segments user packets into multiple segments and distributes them across multiple frequency channels. Instead of allocating one entire frequency channel to one user, the system divides user data into segments that can be transmitted simultaneously over multiple channels, reducing the impact of channel failure on any single user's packet transmission.
Solution Approach 2:
The patent transitions from a one-to-one mapping (one user to one frequency channel) to a many-to-many mapping where multiple users share multiple frequency channels through segment distribution. This dimensional change in resource allocation allows for more flexible and resilient packet transmission during channel switching events.
2Ease of operation
If all packets of one user are transmitted on a single frequency channel, then transmission control is simple, but packet loss occurs during channel switching regardless of packet priority
Solution Approach 1:
User packets are segmented and distributed across multiple frequency channels, so that not all packets from a single user occupy the same channel. This segmentation ensures that during channel switching, only a portion of packets may be affected rather than all packets being lost.
Solution Approach 2:
The system changes the transmission parameter by distributing packets across multiple frequency channels instead of concentrating them on one channel. This parameter change in resource allocation strategy prevents total packet loss during channel switching while maintaining manageable transmission control through systematic distribution rules.
3Reliability
If frequency channel switching is implemented for redundant system, then system reliability improves, but instantaneous interruption causes packet loss
Solution Approach 1:
The system performs preliminary distribution of user packets across multiple frequency channels before switching is needed. This advance segmentation and distribution ensures that when channel switching becomes necessary, the impact is minimized because packets are already dispersed across multiple channels rather than concentrated on one.
Solution Approach 2:
By segmenting packets and distributing them across multiple frequency channels in advance, the system reduces the time-related loss during switching events. The segmentation approach ensures that only segments on the affected channel are impacted, while other segments continue transmission uninterrupted.
Data Source
AI summary
A wireless communication method according to one embodiment includes:dividing the plurality of user signals into a plurality of frequency channels of an active system; distributing the plurality of divided user signals to the plurality of frequency channels of the active system;transmitting the plurality of user signals distributed to the plurality of frequency channels of the active system for each of the plurality of frequency channels of the active system;switching a frequency channel of the active system in which an abnormality occurs to a frequency channel of the redundant system when the abnormality occurs in one of the plurality of frequency channels of the active system in which the plurality of user signals are transmitted;receiving the plurality of transmitted user signals for each frequency channel; andcombining the plurality of user signals received for each frequency channel as a plurality of user signals for each user.