mmWave DMRS Scheduling with Common Reference Blocks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in handling high-frequency bandwidths, particularly in millimeter wave communication, due to the need for improved reference signaling and demodulation techniques that minimize signaling overhead and ensure reliable transmission.
Innovation Solution
Implementing a transmission timing structure with intermediate common reference signaling blocks between control and data signaling blocks, allowing for efficient demodulation and beam switching or sweeping, using DMRS or pilot signaling to facilitate demodulation of both control and data signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If intermediate common reference signaling blocks are inserted between control and data signaling blocks, then demodulation efficiency and reliability are improved, but signaling overhead and transmission resource consumption increase
Solution Approach 1:
The patent introduces intermediate common reference signaling blocks as mediators between control and data signaling blocks. These reference blocks serve as intermediary elements that enable the receiver to accurately demodulate both control and data signals by providing known reference sequences for channel estimation and synchronization, thus improving demodulation reliability without requiring separate reference signals for each block type
Solution Approach 2:
The intermediate common reference signaling blocks serve multiple functions simultaneously: they provide reference signals for demodulating both control and data blocks, enable channel estimation across different signal types, and support beam switching or sweeping operations. This multi-functionality reduces the need for separate reference signals for each purpose, thereby managing overhead more efficiently
2Productivity
If larger bandwidths are used at high frequencies, then communication capacity and data rate are improved, but symbol time interval and cyclic prefix length decrease, affecting demodulation performance
Solution Approach 1:
The patent places reference signaling blocks at predetermined positions within the transmission timing structure, before the actual data transmission begins. This preliminary positioning of reference signals allows the receiver to perform channel estimation and synchronization in advance, compensating for the effects of shortened symbol durations and enabling accurate demodulation even when bandwidth is expanded and symbol times are reduced
Solution Approach 2:
The patent adjusts the timing structure parameters by introducing intermediate reference blocks at specific intervals within the transmission timeline. This parameter modification creates a new timing structure that accommodates high-frequency, wideband operation by providing frequent reference opportunities without requiring excessively long cyclic prefixes or symbol durations, thus maintaining demodulation performance while preserving high communication capacity
Data Source
Figure 1
Figure 2
Figure 3
AI summary
There is disclosed a method of operating a transmitting node in a millimeter-wave communication network. The method comprises transmitting communication signaling in a transmission timing structure, the communication signaling comprising 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.