Wireless Multi-Link Frame Selection Across Microwave and Millimeter-Wave Bands
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Solution Overview
Problem
Existing wireless communication technologies face challenges in efficiently utilizing multiple frequency bands for optimal data transmission, particularly in scenarios involving millimeter-wave bands, which are highly directional and prone to interruptions, leading to potential communication latency and reduced throughput.
Innovation Solution
A wireless communication device that includes a transmission unit, an establishment unit, and a selection unit to dynamically select the appropriate frequency band for transmitting different types of frames based on their requirements, ensuring optimal utilization of microwave and millimeter-wave bands for improved communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If millimeter-wave band links are used for high-speed data transmission, then throughput is improved, but reliability deteriorates due to directional nature and interruptions
Solution Approach 1:
The patent combines microwave band links and millimeter-wave band links into a unified communication system. The microwave link provides reliable control plane communication while the millimeter-wave link handles data plane transmission, merging the advantages of both frequency bands to achieve high throughput with maintained reliability.
Solution Approach 2:
The patent uses the microwave band as an intermediary for control information transmission. Since microwave signals are less directional and more reliable, they serve as a mediator to carry scheduling and control frames that coordinate the millimeter-wave data transmission, ensuring reliable communication even when millimeter-wave links are interrupted.
2Adaptability or versatility
If multiple frequency bands are used for Multi-Link communication, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent segments the communication functions by frequency band: control plane functions (scheduling, link management) are assigned to microwave bands while data plane functions are assigned to millimeter-wave bands. This segmentation simplifies the management of multiple frequency bands by creating clear functional boundaries and reducing the complexity of multi-link coordination.
3Productivity
If control frames are transmitted on millimeter-wave links, then spectrum utilization is improved, but loss of information increases due to link interruptions
Solution Approach 1:
The patent extracts control frame transmission from the millimeter-wave link and relocates it to the microwave link. By separating control plane traffic from data plane traffic and placing control frames on the more reliable microwave band, the system prevents control frame loss while maintaining high spectrum utilization through millimeter-wave data transmission.
Data Source
AI summary
A wireless communication device transmits a wireless frame compliant with an IEEE 802.11 series standard, establishes multiple links between the wireless communication device and another wireless communication device, and selects, in a case where the multiple links include a link in a prescribed frequency band and a link in a frequency band other than the prescribed frequency band, whether to use the link in the prescribed frequency band or the link in the frequency band other than the prescribed frequency band according to a type of frame to be transmitted by the transmission unit.