Downlink Packet Transmission via Paging Indication

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Solution Overview

Problem

Current methods for transmitting downlink data packets in 5G communication systems experience significant transmission delays, leading to inefficiencies in resource utilization and increased power consumption.

Innovation Solution

A method where a terminal receives a paging message indicating data transmission, allowing it to directly receive downlink data packets without establishing an RRC connection, thereby reducing delay and power consumption, and optimizing network signaling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the terminal establishes an RRC connection before receiving downlink data packets, then the connection reliability is improved, but the transmission delay increases

Engineering Contradiction:
Improveconnection reliabilityVSAvoidtransmission delay
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The network side device performs preliminary actions by transmitting the paging message with data transmission indication before the terminal completes RRC connection establishment. This allows the terminal to prepare for direct data reception without waiting for full connection setup, thereby reducing transmission delay while maintaining connection reliability through the indication mechanism.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention extracts the essential data transmission function from the complete RRC connection establishment procedure. By separating the data transmission indication from the full connection setup process, the system enables direct data packet transmission without requiring the terminal to complete all RRC connection steps, thus reducing delay while maintaining necessary reliability.

Inventive Principle:
Principle #2Taking out (Extraction)

2Stability of the object's composition

If the terminal performs state transition to establish RRC connection, then the connection stability is improved, but the power consumption increases

Engineering Contradiction:
Improveconnection stabilityVSAvoidpower consumption
Core Design Contradiction:
Stability of the object's compositionVSUse of energy by moving object

Solution Approach 1:

The invention applies partial action by implementing only the necessary state transition for direct data reception rather than completing the full RRC connection establishment. The terminal transitions to a state that enables data reception without performing all unnecessary connection setup procedures, thereby reducing power consumption while maintaining sufficient connection stability for data transmission.

Inventive Principle:
Principle #16Partial or excessive action

Solution Approach 2:

The system extracts the essential state transition requirement from the complete RRC connection procedure. By identifying and implementing only the minimal state change needed for direct data reception, the invention eliminates excessive power consumption associated with full connection establishment while preserving the necessary connection stability for reliable data transmission.

Inventive Principle:
Principle #2Taking out (Extraction)

3Reliability

If the network side device transmits downlink data packets through established RRC connection, then the transmission reliability is improved, but the network signaling overhead increases

Engineering Contradiction:
Improvetransmission reliabilityVSAvoidnetwork signaling overhead
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The invention extracts the data transmission function from the complex RRC connection establishment signaling. By using the paging message with data transmission indication as a streamlined alternative, the network side device can transmit downlink data packets with minimal signaling overhead while maintaining transmission reliability through the indication mechanism that ensures proper terminal preparation.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system segments the network signaling process into two parts: the paging message with data transmission indication (minimal overhead) and the actual data packet transmission. This segmentation eliminates the need for complete RRC connection establishment signaling while maintaining reliability, as the indication ensures the terminal is properly prepared for direct data reception.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3541127B1Downlink packet transmission method and device
Publication Date: 2023.12.13 VIVO MOBILE COMM CO LTD
  • EP3541127B1 patent drawingFigure 1~2
  • EP3541127B1 patent drawingFigure 3
  • EP3541127B1 patent drawingFigure 4~5

AI summary

A method and a device for transmitting downlink data packets are provided. The method includes: receiving a paging message transmitted by a network side device; and in a case that a data transmission indication indicating transmission exists in the paging message, receiving the downlink data packets transmitted by the network side device.