Data Block Size Adaptation for 5G Timing Complexity
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Solution Overview
Problem
High-frequency wireless communication systems, particularly those using millimeter waves around 52.6 GHz and above, face challenges in handling beamforming and timing complexities, leading to complications in data signaling and resource allocation.
Innovation Solution
A method and radio node design that utilize data signaling with a data block size dependent on a reference allocation unit, avoiding puncturing and rate matching, and employing Demodulation Reference Signaling (DM-RS) for efficient communication, allowing easy parallel processing and optimized resource use in 5G and future wireless networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If data signaling is performed at high frequencies (52.6 GHz and above) with beamforming, then large bandwidths can be used for communication, but timing complexities and beamforming handling become problematic
Solution Approach 1:
The data block is segmented into multiple code blocks, and the transmission is divided into multiple allocation units with reference signaling at regular intervals. This segmentation allows the receiver to process each segment independently with proper timing reference, reducing overall timing complexity while maintaining large bandwidth utilization.
Solution Approach 2:
Reference signaling is placed at predetermined positions (every 2, 3, or 4 allocation units) before data transmission to establish timing reference in advance. This preliminary timing reference allows the receiver to synchronize and handle beamforming changes without complex real-time timing adjustments.
2Adaptability or versatility
If conventional data signaling is used without reference to allocation units, then signaling flexibility is maintained, but puncturing and rate matching become necessary
Solution Approach 1:
The data block size is changed from a fixed conventional value to a variable size that is an integer multiple of the allocation unit size. This parameter change allows the data signaling to align with the reference signaling structure, eliminating the need for puncturing and rate matching while maintaining signaling flexibility.
3Productivity
If data block size is not aligned with reference allocation units, then data transmission continuity is maintained, but processing efficiency decreases
Solution Approach 1:
The data block is divided into multiple code blocks, each fitting into allocation units that are integer multiples of the reference allocation unit size. This segmentation maintains data structure integrity while enabling efficient parallel processing at each reference signaling interval.
Solution Approach 2:
Reference signaling is transmitted periodically at regular allocation unit intervals (every 2, 3, or 4 units). This periodic structure creates a stable framework that maintains data block composition while enabling efficient periodic processing operations.
Data Source
AI summary
There is disclosed a method of operating a radio node in a wireless communication network. The method includes communicating utilising data signaling carrying a data block having a data block size, wherein the data signaling starts in time domain at a starting allocation unit, the data block size being dependent on a position in time domain on a reference allocation unit associated to reference signaling, the reference allocation unit trailing the starting allocation unit in time domain. The disclosure also pertains to related devices and methods.