Neighboring Cell Reference Signal Acquisition Without Handover

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Solution Overview

Problem

In wireless communication systems, especially during mobility or multi-Transmission Reception Points (TRPs) scenarios, the delay in using a neighboring cell's Reference Signal (RS) is significant due to the need for cell handover, which hampers quick beam management and power control.

Innovation Solution

A method to determine a target RS of a neighboring cell without performing cell handover by meeting specific conditions, such as having related information of the neighboring cell, allowing for immediate access and reducing delays in cross-cell beam management and power control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If cell handover is performed to use a neighboring cell's Reference Signal, then the RS can be obtained, but the delay increases significantly

Engineering Contradiction:

ImproveRS acquisition reliabilityVSAvoidRS acquisition delay

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-configuring reference signal resources and related information of neighboring cells before handover is needed. The terminal can directly use the pre-configured RS of the neighboring cell when conditions are met, avoiding the time-consuming cell handover process while ensuring reliable RS acquisition for beam management and power control

Inventive Principle:

Principle #10Preliminary action

2Adaptability or versatility

If cell handover is performed to enable cross-cell beam management and power control, then the functionality is achieved, but the system flexibility is reduced

Engineering Contradiction:

ImproveCross-cell beam management capabilityVSAvoidHandover procedure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies copying by allowing the terminal to use the reference signal configuration and related information of the neighboring cell directly without performing actual cell handover. The terminal copies the RS configuration from the neighboring cell's context that is already available, enabling cross-cell beam management and power control while avoiding the complex handover procedure

Inventive Principle:

Principle #26Copying

Data Source

PatentUS20220386144A1Method for determining reference signal and communications device

Publication Date: 2022.12.01 VIVO MOBILE COMM CO LTD

AI summary

A method for determining a reference signal and a communications device are provided. The method for determining a reference signal includes determining a target Reference Signal (RS) as a RS of a neighboring cell in a case that a first condition is met. The first condition includes any one of the following: first information includes related information of the neighboring cell; or related configuration information of a first object includes related information of the neighboring cell.