Timing Offset for Wireless Data Signaling Scheduling

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Solution Overview

Problem

High-frequency wireless communication systems, particularly those using millimeter waves, face challenges in efficient time domain scheduling and beam management due to the small size and ubiquity of beams, leading to complications in data signaling and timing alignment.

Innovation Solution

A method for operating radio nodes in wireless communication networks that utilizes a timing offset for data signaling, allowing flexible scheduling and avoidance of overlap between control regions and data signaling, particularly suitable for 5G and future generations of wireless communication systems, by indicating a start timing based on a timing offset relative to control information messages.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If beamforming with small beams is used at high frequencies, then communication bandwidth is improved, but timing alignment and scheduling complexity increase

Engineering Contradiction:
ImprovebandwidthVSAvoidscheduling complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent segments the time domain into distinct regions: control regions (CORESETs) and data signaling regions (PDSCH/PUSCH). By dividing the time domain resources and assigning different timing offsets to different UEs, the system manages scheduling complexity while maintaining high bandwidth utilization through beamforming.

Inventive Principle:
Principle #1Segmentation

2Productivity

If multiple UEs with different CORESET configurations are scheduled, then system capacity is improved, but overlap between control regions and data signaling occurs

Engineering Contradiction:
Improvesystem capacityVSAvoidresource allocation reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent introduces a timing offset dimension to resolve conflicts in the time domain. By applying different timing offsets to different UEs, the system ensures that control regions and data signaling regions do not overlap, even when multiple UEs with different CORESET configurations are scheduled simultaneously, thus maintaining both system capacity and resource allocation reliability.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Productivity

If flexible time domain scheduling is implemented, then communication efficiency is improved, but overhead for scheduling increases

Engineering Contradiction:
Improvecommunication efficiencyVSAvoidscheduling overhead
Core Design Contradiction:
ProductivityVSLoss of information

Solution Approach 1:

The patent applies timing offsets selectively based on UE-specific configurations and scheduling requirements. Rather than applying complex scheduling mechanisms to all UEs uniformly, the system uses timing offsets only where needed to prevent overlaps, thereby maintaining communication efficiency while minimizing scheduling overhead.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS20240056267A1Time domain resource allocation for wireless communication network
Publication Date: 2024.02.15 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
  • US20240056267A1 patent drawing
  • US20240056267A1 patent drawing
  • US20240056267A1 patent drawing

AI summary

There is disclosed a method of operating a communicating radio node in a wireless communication network. The method includes communicating utilising data signaling based on a timing offset, wherein a start of the data signaling in time domain relative to a reception time of a control information message scheduling the data signaling is based on the timing offset. The disclosure also pertains to related devices and methods.