Neighbor Cell Sync Info Transmission for 5G Terminal Power Reduction

Solution Overview

Problem

In the 5G mobile communication system, terminals in an idle state need to search for multiple neighbor cells, which consumes a significant amount of time and power due to a lack of clear neighbor cell information.

Innovation Solution

A method where a network side device determines and transmits synchronization-related information of neighbor cells to terminals, allowing them to measure neighbor cells more efficiently by reducing the number of synchronization signal measurements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the terminal searches for multiple neighbor cells without clear information, then the terminal can find a proper resident cell, but the search consumes a large amount of time and power

Engineering Contradiction:

Improveability to find proper resident cellVSAvoidpower consumption of terminal

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The network side device performs preliminary actions by determining and transmitting synchronization-related information of neighbor cells to the terminal before the terminal conducts its search. This advance provision of synchronization information (including synchronization signal patterns, resource positions, and cell identifiers) allows the terminal to skip exhaustive searching and directly measure known synchronization signals, dramatically reducing power consumption while ensuring reliable cell discovery

Inventive Principle:

Principle #10Preliminary action

2Reliability

If the terminal searches for multiple neighbor cells without clear information, then the terminal can find a proper resident cell, but the search consumes a large amount of time

Engineering Contradiction:

Improveability to find proper resident cellVSAvoidsearch time of terminal

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The network side device performs preliminary actions by determining and transmitting synchronization-related information of neighbor cells to the terminal before the terminal conducts its search. This advance provision of synchronization information (including synchronization signal patterns, resource positions, and cell identifiers) allows the terminal to skip exhaustive searching and directly measure known synchronization signals, dramatically reducing search time while ensuring reliable cell discovery

Inventive Principle:

Principle #10Preliminary action

3Loss of information

If the terminal measures all neighbor cells exhaustively, then complete measurement information is obtained, but the measurement process becomes complex and time-consuming

Engineering Contradiction:

Improvecompleteness of neighbor cell measurement informationVSAvoidcomplexity of measurement process

Core Design Contradiction:

Loss of informationVSDevice complexity

Solution Approach 1:

The network side device performs preliminary actions by determining and transmitting synchronization-related information of neighbor cells to the terminal before the terminal conducts its search. This advance provision of synchronization information (including synchronization signal patterns, resource positions, and cell identifiers) allows the terminal to skip exhaustive searching and directly measure known synchronization signals, dramatically reducing search time while ensuring reliable cell discovery

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The invention extracts only the essential synchronization-related information (synchronization signal patterns, resource positions, cell identifiers) from the complete neighbor cell information set and transmits it to the terminal. This extraction allows the terminal to perform targeted measurements without processing all possible neighbor cell data, reducing measurement process complexity while maintaining measurement completeness

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS11356907B2Transmission method and processing method of neighbor cell information, network side device, and terminal

Publication Date: 2022.06.07 VIVO MOBILE COMM CO LTD

AI summary

A method of transmitting neighbor cell information, a method of processing neighbor cell information, a network side device, and a terminal are provided. The method of processing the neighbor cell information includes: receiving, by a terminal, synchronization-related information of a neighbor cell transmitted by a network side device; and parsing, by the terminal, the synchronization-related information.