IoT Uplink Transmission via Preconfigured Resources

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Solution Overview

Problem

Current data transmission processes in NB-IoT and MTC networks require terminal devices to initiate random access, leading to increased power consumption and delay when sending uplink data.

Innovation Solution

A data transmission method where a terminal device receives a preconfigured resource from a network device, allowing it to send uplink data directly on that resource without sending MSG 1 and MSG 2, thereby reducing power consumption and delay.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the terminal device initiates random access to send uplink data, then the data can be transmitted reliably, but the power consumption increases and transmission delay occurs

Engineering Contradiction:

Improvedata transmission reliabilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The network device pre-allocates uplink resources to the terminal device in advance, so that when the terminal device has data to send, it can directly use the pre-configured resources without performing random access procedures. This preliminary allocation eliminates the need for MSG1 and MSG2 exchange, reducing both power consumption and transmission delay while maintaining reliable data transmission.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If the terminal device initiates random access to send uplink data, then the data can be transmitted reliably, but the transmission delay increases

Engineering Contradiction:

Improvedata transmission reliabilityVSAvoidtransmission delay

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

Inventive Principle:

Principle #10Preliminary action

3Ease of operation

If the terminal device sends MSG 1 and MSG 2 before sending uplink data, then the random access procedure is completed, but the power consumption and delay increase

Engineering Contradiction:

Improverandom access procedure completionVSAvoidpower consumption

Core Design Contradiction:

Ease of operationVSUse of energy by moving object

Solution Approach 1:

The patent extracts and removes the random access procedure (MSG1 and MSG2 exchange) from the uplink data transmission process. By pre-configuring uplink resources, the terminal device can directly send data without going through the random access procedure, thereby eliminating unnecessary power consumption associated with sending and receiving access messages.

Inventive Principle:

Principle #2Taking out (Extraction)

4Ease of operation

If the terminal device sends MSG 1 and MSG 2 before sending uplink data, then the random access procedure is completed, but the transmission delay increases

Engineering Contradiction:

Improverandom access procedure completionVSAvoidtransmission delay

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS20250031231A1Data transmission method and apparatus

Publication Date: 2025.01.23 HUAWEI TECH CO LTD

AI summary

Embodiments of this application provide a data transmission method and an apparatus, and relate to the communications field, to reduce power consumption and a delay for sending uplink data by a terminal device. The method includes: A terminal device receives a first resource configuration from a network device, where the first resource configuration is used to indicate a first resource, and the first resource is used by the terminal device to send data when the terminal device is in an idle mode; and when the terminal device is in the idle mode and has to-be-sent first uplink data, the terminal device sends the first uplink data to the network device on the first resource. The embodiments of this application are used in an Internet of Things communications system.