Time-Synchronized Wireless Network Clock Scheduling

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Solution Overview

Problem

Current LTE and NR technologies face challenges in dynamically synchronizing communications in wireless networks, particularly as demand for mobile broadband access increases, necessitating improvements applicable to multiple access technologies and telecommunication standards.

Innovation Solution

The implementation of techniques and apparatuses for scheduling in time-synchronized wireless networks, which involve synchronizing clocks of base stations and user equipment with frame structures, receiving configuration information for quality of service profiles, and mapping time intervals to ensure efficient communication during designated time intervals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If dynamic synchronization techniques are implemented in wireless networks, then communication coordination between base stations and user equipment is improved, but device complexity and scheduling overhead increase

Engineering Contradiction:
Improvecommunication coordinationVSAvoidscheduling overhead
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by pre-synchronizing clocks of base stations and user equipment to a common frame structure before communication occurs. Configuration information including QoS profiles and time interval mappings is provided in advance, allowing devices to autonomously determine their communication schedules without real-time coordination overhead.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements self-service by enabling user equipment to autonomously determine time intervals for communication based on pre-configured mapping information. Each device independently synchronizes its operations to the frame structure using locally stored configuration data, eliminating the need for continuous centralized scheduling commands.

Inventive Principle:
Principle #25Self-service

2Productivity

If time-aware scheduling is implemented to enhance communication efficiency, then network performance improves, but network resource utilization decreases

Engineering Contradiction:
Improvecommunication efficiencyVSAvoidnetwork resource utilization
Core Design Contradiction:
ProductivityVSQuantity of substance

Solution Approach 1:

The patent applies periodic action by organizing communication into discrete time intervals aligned with the frame structure. Configuration information specifies particular time intervals within each frame for different communication purposes, creating a periodic scheduling pattern that improves efficiency while allowing resources to be reused across frames.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent implements segmentation by dividing the communication resource into distinct time intervals within the frame structure. Each interval is assigned specific communication functions based on QoS requirements, allowing efficient utilization of network resources through structured allocation rather than continuous occupation.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3747220B1Scheduling for a time-synchronized wireless network
Publication Date: 2022.03.16 QUALCOMM INC
  • EP3747220B1 patent drawingFigure 1
  • EP3747220B1 patent drawingFigure 2
  • EP3747220B1 patent drawingFigure 3A

AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an access node may synchronize a clock of the access node which is associated with communication on a local area network to a frame structure of a time-synchronized wireless network. The access node may receive configuration information relating to a quality of service profile and a first set of time intervals for the clock of the access node. The access node may map the first set of time intervals for the clock of the access node to a second set of time intervals of the frame structure of the time-synchronized wireless network. The access node may communicate on the time-synchronized wireless network during one or more of the second set of time intervals. Numerous other aspects are provided.