Synchronization Signal Block Position Indication in 5G NR

Solution Overview

Problem

Current methods for indicating the position of synchronous signal blocks in 5G NR systems do not effectively reduce terminal measurement time and power consumption.

Innovation Solution

A method where a network apparatus determines and sends the transmission position of synchronous signal blocks to a terminal apparatus, allowing the terminal to directly measure neighboring cells at the notified position, thereby avoiding unnecessary measurements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the terminal searches for SS blocks in the entire system bandwidth to acquire synchronization, then the terminal can obtain time-frequency synchronization and PBCH information, but the measurement time and power consumption increase

Engineering Contradiction:

Improvesynchronization acquisition reliabilityVSAvoidmeasurement time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The network pre-calculates and determines the actual transmission positions of SS blocks in neighboring cells before the terminal performs measurement. This preliminary determination of SS block positions allows the terminal to directly measure at the correct positions without searching the entire system bandwidth, thereby reducing measurement time while ensuring reliable synchronization acquisition

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The network acts as an intermediary by providing indication information about SS block transmission positions to the terminal. Instead of the terminal independently searching all possible positions, the network mediates the process by supplying precise position information, enabling the terminal to efficiently locate and measure SS blocks at the indicated positions

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If the terminal searches for SS blocks in the entire system bandwidth to acquire synchronization, then the terminal can obtain time-frequency synchronization and PBCH information, but the power consumption increases

Engineering Contradiction:

Improvesynchronization acquisition reliabilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The network pre-calculates and determines the actual transmission positions of SS blocks in neighboring cells before the terminal performs measurement. This preliminary determination of SS block positions allows the terminal to directly measure at the correct positions without searching the entire system bandwidth, thereby reducing measurement time while ensuring reliable synchronization acquisition

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The network acts as an intermediary by providing indication information about SS block transmission positions to the terminal. Instead of the terminal independently searching all possible positions, the network mediates the process by supplying precise position information, enabling the terminal to efficiently locate and measure SS blocks at the indicated positions

Inventive Principle:

Principle #24Intermediary (Mediator)

3Loss of information

If the terminal performs RRM measurement based on SSS and DMRS of PBCH, then the terminal can acquire neighbor cell information, but the measurement process becomes complex and time-consuming

Engineering Contradiction:

Improveneighbor cell information acquisitionVSAvoidmeasurement process complexity

Core Design Contradiction:

Loss of informationVSDevice complexity

Solution Approach 1:

The network pre-calculates and determines the actual transmission positions of SS blocks in neighboring cells before the terminal performs measurement. This preliminary determination of SS block positions allows the terminal to directly measure at the correct positions without searching the entire system bandwidth, thereby reducing measurement time while ensuring reliable synchronization acquisition

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The network acts as an intermediary by providing indication information about SS block transmission positions to the terminal. Instead of the terminal independently searching all possible positions, the network mediates the process by supplying precise position information, enabling the terminal to efficiently locate and measure SS blocks at the indicated positions

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS11553444B2Method, network apparatus, and terminal apparatus for indicating position of synchronization signal block

Publication Date: 2023.01.10 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD

AI summary

Disclosed in the present invention are a method, network apparatus, terminal apparatus, and computer storage medium for indicating a position of a synchronization signal block. The method comprises: determining a transmission position of a synchronization signal block of at least one cell of a first type; and sending to a terminal apparatus, by means of signaling, the transmission position of the synchronization signal block of the at least one cell of the first type, wherein the terminal apparatus is covered by a cell of a second type managed by the network apparatus.