5G Frequency Priority Configuration via Network Slice Awareness

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

The existing LTE communication system's frequency priority configuration cannot meet the requirements of the 5G system, particularly in managing frequency selection for terminal devices in idle or inactive states, leading to unnecessary signaling overhead and energy consumption.

Innovation Solution

A method for configuring frequency priority in a 5G system that involves a base station and core network device, where the frequency information corresponding to network slices registered by terminal devices is considered to avoid unnecessary access to connected states, thereby optimizing frequency selection and reducing signaling overhead and energy consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the terminal device enters connected state to obtain frequency priority information, then the frequency priority configuration can be updated, but signaling overhead and energy consumption increase

Engineering Contradiction:

Improvefrequency priority configuration accuracyVSAvoidterminal device energy consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The network side configures frequency priority information for the terminal device in advance when the terminal is in idle or inactive state, so that the terminal does not need to enter connected state to obtain this information, thereby reducing energy consumption and signaling overhead while ensuring the terminal can perform cell reselection properly

Inventive Principle:

Principle #10Preliminary action

2Reliability

If the terminal device enters connected state to obtain frequency priority information, then the frequency priority configuration can be updated, but signaling overhead increases

Engineering Contradiction:

Improvefrequency priority configuration accuracyVSAvoidsignaling overhead

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

Inventive Principle:

Principle #10Preliminary action

3Adaptability or versatility

If the terminal device resides at a frequency not matching its registered network slice, then frequency diversity is achieved, but service transmission efficiency decreases

Engineering Contradiction:

Improvefrequency selection flexibilityVSAvoidservice transmission efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The frequency priority information is customized according to the terminal device's registered network slice and service requirements, so that different terminal devices receive different frequency priority configurations tailored to their specific needs, thereby ensuring they reside at frequencies that optimize service transmission efficiency while maintaining frequency diversity

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS11153158B2Method for configuring a frequency priority, terminal device, base station, and core network device

Publication Date: 2021.10.19 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD

AI summary

A method for configuring a frequency priority, a terminal device, a base station and a core network device are provided. When the base station or the core network device configures information of a frequency priority, information of a frequency corresponding to a network slice registered by the terminal device is considered. The method includes: transmitting a first request message to a core network device, wherein the first request message is used for requesting information of a network slice registered by a terminal device; receiving a response message transmitted by the core network device for the first request message, wherein the response message includes the information of the network slice registered by the terminal device; configuring information of a frequency priority for the terminal device according to the response message; and transmitting the configured information of the frequency priority to the terminal device.