Configurable DM-RS Structures for Millimeter-Wave Timing and Bandwidth
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Solution Overview
Problem
The use of higher frequencies in wireless communication systems, such as millimeter waves, poses challenges related to physical properties and timing, particularly in managing reference signaling for improved bandwidth utilization and symbol time intervals.
Innovation Solution
Implementing improved reference signaling structures, including DM-RS and PT-RS, with configurable time-domain sequences and configurable numerologies for millimeter wave communication, particularly in 5G networks, to enhance bandwidth management and timing accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If higher carrier frequencies are used to enable large bandwidths for communication, then bandwidth capacity is improved, but symbol time interval and cyclic prefix length decrease leading to timing challenges
Solution Approach 1:
The patent applies parameter changes by introducing configurable numerologies that allow dynamic adjustment of subcarrier spacing and cyclic prefix lengths according to carrier frequency. At higher frequencies, larger subcarrier spacing and appropriately scaled cyclic prefix lengths are configured to maintain timing synchronization and compensate for the reduced symbol time interval, thereby resolving the timing challenges while preserving the large bandwidth capacity advantage
2Productivity
If larger bandwidths are used in high frequency communication, then data transmission capacity is improved, but reference signaling management becomes more complex
Solution Approach 1:
The patent applies segmentation by dividing the large bandwidth into multiple bandwidth parts, each with its own configurable numerology and reference signaling parameters. This allows reference signaling to be managed independently within each bandwidth part, reducing the overall complexity while maintaining high data transmission capacity across the aggregated bandwidth
Solution Approach 2:
The patent applies dynamics by enabling flexible and dynamic configuration of numerology parameters including subcarrier spacing, cyclic prefix length, and reference signaling density according to the specific carrier frequency and bandwidth requirements. This adaptive approach optimizes reference signaling management for each operating condition without sacrificing data transmission capacity
Data Source
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AI summary
There is disclosed a method of operating a transmitting node in a millimeter-wave communication network. The method includes transmitting communication signaling in a transmission timing structure, the communication signaling including control signaling and data signaling, the communication signaling further comprising reference signaling common to the control signaling and data signaling. The disclosure also pertains to related devices and methods.