Control Signaling Shift for Millimeter Wave Interference
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Solution Overview
Problem
High-frequency wireless communication systems, particularly at millimeter wave frequencies above 52.6 GHz, face challenges in handling control signaling due to physical properties and timing complexities, including beamforming complications that affect signal quality and latency.
Innovation Solution
A method of transmitting and receiving control signaling in wireless communication networks by shifting second control signaling relative to first control signaling within a control transmission time interval, utilizing transmission diversity to minimize destructive interference and enhance signaling quality, while maintaining low latency and low signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If control signaling is transmitted using traditional methods at high frequencies, then signal transmission can be maintained, but signal quality deteriorates due to destructive interference and beamforming complications
Solution Approach 1:
The control signaling is divided into two separate control signalings (first control signaling and second control signaling) that are shifted relative to each other within the control transmission time interval. This segmentation allows the signals to be transmitted through different beamforming configurations, reducing destructive interference and improving signal quality at high frequencies.
Solution Approach 2:
The patent introduces a temporal dimension by shifting the second control signaling relative to the first control signaling within the control transmission time interval. This time-domain separation, combined with spatial beamforming diversity, creates a multi-dimensional transmission approach that mitigates the harmful effects of destructive interference.
2Speed
If beamforming is used to improve signal quality at millimeter wave frequencies, then communication range is extended, but system complexity increases due to beam management requirements
Solution Approach 1:
By segmenting the control signaling into two parts with different beamforming configurations, the system can leverage multiple beams without requiring complex switching logic. Each control signaling can be independently processed with simpler beam management, reducing overall system complexity while maintaining extended communication range.
3Loss of time
If control signaling transmission time is reduced to meet latency requirements, then latency is improved, but signal reliability deteriorates due to insufficient transmission time
Solution Approach 1:
The patent moves the solution from the time domain to the spatial and frequency domains by using shifted control signalings with different beamforming configurations. This allows the system to maintain short transmission time intervals (meeting latency requirements) while improving signal reliability through diversity in the spatial and frequency dimensions.
Data Source
AI summary
There is disclosed a method of operating a transmitting radio node in a wireless communication network. The method includes transmitting first control signaling covering one or more first allocation units in a control transmission time interval, and transmitting second control signaling covering one or more second allocation units in the control transmission time interval, wherein the second control signaling is shifted relative to the first control signaling. The disclosure also pertains to related devices and methods.