Inter-system Measurement Transmission via Core Network Mediator

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Solution Overview

Problem

In the current 5G protocol, there is no interface between gNB and eNB, leading to difficulties in acquiring necessary measurement configuration information, lack of interaction means across core networks, and inadequate addressing information, which results in delayed inter-system measurements and handovers.

Innovation Solution

A method and system for transmitting inter-system measurement information, where a first base station determines if an interface exists with a second base station, and if not, it uses pre-configuration information to determine the corresponding core network and interface. It then sends measurement configuration information through the core networks to the second base station, enabling inter-system measurement configuration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If no direct interface exists between base stations of different core networks, then network architecture flexibility is improved, but measurement configuration information transmission is delayed

Engineering Contradiction:

Improvenetwork architecture flexibilityVSAvoidmeasurement configuration information transmission time

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent introduces the core network control plane entity as an intermediary to transmit measurement configuration information. When no direct interface exists between base stations, the measurement configuration information is transmitted through the core network control plane entity, which acts as a mediator to bridge the communication gap between base stations belonging to different core networks.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the transmission dimension from direct base station-to-base station interface to base station-to-core network-and-back path. By utilizing the core network control plane entity as an intermediate transmission dimension, the system enables measurement configuration information transmission across base stations without direct interfaces.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Extent of automation

If measurement configuration information is transmitted through core network control plane entity, then automatic acquisition between base stations is improved, but network interaction complexity increases

Engineering Contradiction:

Improveautomatic acquisition of measurement configuration informationVSAvoidnetwork interaction complexity

Core Design Contradiction:

Extent of automationVSDevice complexity

Solution Approach 1:

The patent makes the core network control plane entity perform multiple functions: it not only manages core network control functions but also serves as a transmission channel for measurement configuration information between base stations. This multi-functionality reduces the need for separate dedicated interfaces while enabling automatic information acquisition.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The base station automatically acquires measurement configuration information by sending requests to and receiving responses from the core network control plane entity without manual intervention. The system enables self-service information acquisition where the base station independently obtains necessary measurement parameters through standardized signaling procedures.

Inventive Principle:

Principle #25Self-service

3Adaptability or versatility

If base stations belong to different core networks, then network independence is improved, but inter-system measurement capability deteriorates

Engineering Contradiction:

Improvenetwork independenceVSAvoidinter-system measurement capability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The core network control plane entity serves as a mediator that enables measurement configuration information transmission between base stations of different core networks. This intermediary mechanism maintains network independence while establishing reliable communication channels for inter-system measurements through standardized signaling procedures.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS12245079B2Inter-system measurement information transmission method and system, and computer readable storage medium

Publication Date: 2025.03.04 CHINA TELECOM CORP LTD

AI summary

The present invention provides an inter-system measurement information transmission method and system. The method comprises: if there is no interface between a first base station and a second base station, the first base station determines a corresponding core network and a corresponding interface; if the corresponding core network is a first core network corresponding to the first base station, the first base station sends first measurement configuration information to a control plane entity of the first core network; the control plane entity of the first core network sends the first measurement configuration information to a control plane entity of a second core network; the control plane entity of the second core network sends the first measurement configuration information to the second base station; and the second base station determines inter-system measurement configuration information of a terminal within the coverage of the second base station for the first base station.