Cell Discontinuous Communication for Lower Power and Network Congestion

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Solution Overview

Problem

Existing wireless communication technologies face challenges in optimizing power consumption and network congestion through efficient implementation of Discontinuous Reception (DRX) for user equipments (UEs) and network nodes.

Innovation Solution

The implementation of cell discontinuous communication methods, including cell configuration information for discontinuous transmission (DTX) and reception (DRX), which involve specific terminal and network behaviors during active and inactive times, along with adaptive timer management and signaling mechanisms to align UE and cell DRX cycles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If Discontinuous Reception (DRX) is implemented for user equipments and network nodes, then power consumption is reduced, but communication continuity and responsiveness deteriorate

Engineering Contradiction:
Improvepower consumptionVSAvoidcommunication continuity
Core Design Contradiction:
Use of energy by moving objectVSReliability

Solution Approach 1:

The patent implements periodic DRX cycles with alternating active and inactive periods for both UE and cell. During active periods, normal communication occurs; during inactive periods, both UE and cell enter sleep mode to save power. This periodic structure resolves the contradiction by systematically alternating between power-saving state and communication-ready state, ensuring that power consumption is reduced while communication continuity is maintained through timely wake-up and synchronization mechanisms.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent employs preliminary synchronization and configuration actions before entering DRX inactive periods. The network configures DRX parameters in advance, and UEs perform necessary measurements and preparations during active periods before transitioning to sleep mode. This preliminary action ensures that when UEs wake up, they can quickly resume communication without significant delay, thus maintaining communication continuity while achieving power savings.

Inventive Principle:
Principle #10Preliminary action

2Use of energy by moving object

If DRX cycles are extended to increase sleep periods, then power consumption decreases, but latency and response time increase

Engineering Contradiction:
Improvepower consumptionVSAvoidlatency
Core Design Contradiction:
Use of energy by moving objectVSLoss of time

Solution Approach 1:

The patent implements dynamic DRX configuration where the network can adjust DRX cycle lengths, active period durations, and offset values based on traffic conditions and service requirements. This dynamic adjustment allows the system to optimize the balance between power consumption and latency - extending sleep periods for power-saving scenarios while maintaining shorter cycles for latency-sensitive services, thus resolving the contradiction adaptively.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent utilizes multiple DRX parameter configurations including different cycle lengths, active period durations, and offset values. By changing these parameters based on service type and traffic patterns, the system can achieve longer sleep periods for power savings when appropriate, while maintaining the capability to switch to shorter cycles when low latency is required, thereby resolving the contradiction between power consumption and latency.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If cell configuration information is provided for discontinuous communication, then resource utilization efficiency improves, but signaling overhead and system complexity increase

Engineering Contradiction:
Improveresource utilization efficiencyVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent employs universal DRX configuration mechanisms that can be applied across multiple UEs and cells with a standardized set of parameters and procedures. The same configuration framework serves both power saving and resource optimization functions, eliminating the need for separate complex mechanisms. This multi-functionality resolves the contradiction by achieving resource utilization efficiency through a relatively simple and unified configuration approach.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent implements efficient configuration management where DRX parameters are configured once and then reused across multiple DRX cycles, discarding the need for repeated full configuration messaging. The system recovers and applies the same configuration patterns repeatedly, reducing signaling overhead while maintaining resource utilization efficiency. This approach resolves the contradiction by minimizing the complexity burden of configuration management.

Inventive Principle:
Principle #34Discarding and recovering

Data Source

PatentUS20250294638A1Method, device and computer program product for wireless communication
Publication Date: 2025.09.18 ZTE CORP
  • US20250294638A1 patent drawing
  • US20250294638A1 patent drawing
  • US20250294638A1 patent drawing

AI summary

A wireless communication method is disclosed. The method comprises receiving, by a wireless communication terminal from a wireless communication node, cell configuration information for a cell discontinuous communication; and performing, by the wireless communication terminal, the cell discontinuous communication according to the cell configuration information.