Multi-Link Communication Control Beyond Millimeter-Wave Channels
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Solution Overview
Problem
Communication in millimeter wave bands is prone to easy interruption due to strong radio wave directivity, which can be mitigated by establishing links in frequency bands different from the millimeter wave band during Multi-Link communication.
Innovation Solution
A communication apparatus that establishes links on a plurality of different frequency channels, including at least one channel outside the millimeter wave band, to prevent throughput reduction and communication delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If communication is performed using millimeter wave bands to improve throughput, then communication speed increases, but communication stability deteriorates due to easy interruption
Solution Approach 1:
The communication system segments the communication path into multiple links operating on different frequency channels. Instead of relying on a single millimeter wave band link, the system establishes separate communication links on different frequency channels (including but not limited to millimeter wave bands), allowing data to be transmitted through multiple parallel paths. This segmentation enables the system to maintain high throughput while improving stability, as interruption in one link does not necessarily affect other links.
Solution Approach 2:
The system changes the frequency channel parameter by establishing links on multiple different frequency channels rather than relying solely on millimeter wave bands. This parameter diversification allows the system to leverage the high bandwidth of millimeter wave channels for throughput while using other frequency channels to provide alternative paths that are less susceptible to interruption, thereby improving overall communication stability.
2Reliability
If multiple links on different frequency channels are established to improve stability, then communication reliability increases, but device complexity increases
Solution Approach 1:
The communication apparatus is designed with multi-functional capability to handle multiple frequency channels simultaneously. The control unit can perform diverse operations including link establishment, maintenance, and interruption handling across different frequency channels using a unified control mechanism. This multi-functionality allows the system to manage multiple links for improved stability while avoiding the need for separate dedicated control systems for each link, thereby limiting the increase in device complexity.
3Productivity
If links are established only on millimeter wave bands based on connection requests, then throughput is maximized, but communication is easily interrupted
Solution Approach 1:
The system prepares compensatory measures in advance by establishing links on multiple frequency channels before communication interruptions occur. When a connection request is received, the control unit proactively sets up redundant links on different frequency channels alongside the primary millimeter wave band link. This prior cushioning ensures that if the millimeter wave link is interrupted, alternative links are already in place to maintain communication, thereby reducing the impact of harmful interruption factors while preserving high throughput capability.
Data Source
AI summary
When establishing links on a plurality of different frequency channels with another communication apparatus on the basis of a connection request received from the another communication apparatus, the communication apparatus performs control not to establish links on a plurality of different frequency channels based on the connection request when links to be established, which are identified at least on the basis of information included in the connection request, are only links on frequency channels in a millimeter wave band.