Terminal Mobility Information Reporting for Accurate Handover

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Solution Overview

Problem

Existing mobility information obtained by base stations has low accuracy, leading to inadequate configuration information for terminal devices in communication systems.

Innovation Solution

Terminal devices actively obtain and report mobility information, including geographical location, time, and identification information, to network devices, enhancing the accuracy and diversity of the information exchanged.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the source base station actively obtains mobility information, then the information can be transmitted to the target base station, but the accuracy of the obtained cell information and mobility information is low

Engineering Contradiction:

Improveaccuracy of mobility informationVSAvoidcomplexity of information exchange mechanism

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

Instead of having the base station obtain mobility information from the terminal device through active measurement and reporting, the patent inverts the approach by having the terminal device itself obtain and report its own mobility information (including geographical location, time, and identification information) to the network device. This inversion allows the terminal device to provide accurate self-measured data directly, resolving the accuracy problem while simplifying the overall information exchange mechanism.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The terminal device performs self-service by obtaining its own mobility information using its built-in capabilities (such as GPS for location, internal clock for time, and device identifiers). This eliminates the need for the base station to actively measure and obtain this information, improving accuracy while reducing the complexity of base station operations and inter-base station communication.

Inventive Principle:

Principle #25Self-service

2Reliability

If the source base station actively obtains mobility information, then configuration information can be provided to the terminal device, but the configuration information cannot be accurate due to low accuracy of obtained information

Engineering Contradiction:

Improveaccuracy of configuration informationVSAvoidtime for information acquisition and exchange

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The terminal device performs preliminary action by obtaining and storing its own mobility information (geographical location, time, identification information) before handover occurs. This pre-obtained information is then readily available for reporting to the network device, eliminating the time delay associated with base station active measurement and information exchange during the handover process, while ensuring accurate configuration information can be provided.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The terminal device provides feedback to the network device by reporting its own mobility information directly. This feedback mechanism ensures that the network device receives accurate, real-time information from the terminal device itself, improving the reliability of configuration information while reducing the time required for information acquisition compared to base station active measurement and X2 interface exchange.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS11490244B2Mobility information reporting and exchange method, terminal device, and network device

Publication Date: 2022.11.01 VIVO MOBILE COMM CO LTD

AI summary

This disclosure discloses a mobility information reporting and exchange method, a terminal device, and a network device. The mobility information reporting method includes obtaining mobility information, where the mobility information includes at least one of geographical location information of the terminal device, time information corresponding to the geographical location information, and identification information of the terminal device, and reporting the mobility information to the network device.