Neighbor Cell Service Configuration for Seamless MBMS Handover

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Solution Overview

Problem

Existing multimedia broadcast multicast services (MBMS) face challenges in maintaining service continuity and reducing service delays when user equipment (UE) moves between cells, leading to network pressure and inefficiencies in mobile networks.

Innovation Solution

A communication method and apparatus that enable a terminal device to receive first information from a serving cell, which includes indication and configuration information about neighboring cells, allowing the device to determine the appropriate configuration for seamless service continuity and data reception in the target cell.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the terminal device obtains service configuration information from the target cell after cell transition, then the device can ensure accurate service configuration, but service delay increases and service continuity deteriorates

Engineering Contradiction:
Improveservice configuration accuracyVSAvoidservice delay
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The source cell provides service configuration information of the target cell to the terminal device before the terminal device actually transitions to the target cell. This preliminary provision of configuration information enables the terminal device to be ready for immediate service reception upon cell transition, eliminating the delay that would otherwise occur while waiting to obtain configuration from the target cell.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If the terminal device requests configuration information from the target cell after cell transition, then the device can ensure up-to-date service configuration, but service continuity is interrupted during the request process

Engineering Contradiction:
Improveservice configuration validityVSAvoidservice interruption time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The source cell provides the target cell's service configuration information to the terminal device in advance, before the cell transition occurs. This eliminates the need for the terminal device to request configuration information from the target cell after transition, thereby avoiding service interruption and ensuring continuous service reception.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If the terminal device continuously monitors all neighboring cells for service information, then the device can ensure seamless service continuity, but network pressure increases and transmission efficiency decreases

Engineering Contradiction:
Improveservice continuityVSAvoidnetwork transmission efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The invention extracts only the necessary service configuration information from the target cell and provides it to the terminal device through the source cell. This selective extraction of required information eliminates the need for the terminal device to continuously monitor all neighboring cells, thereby reducing network pressure while ensuring service continuity.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The source cell acts as an intermediary that obtains and forwards the target cell's service configuration information to the terminal device. This intermediary approach eliminates direct communication between the terminal device and target cell for configuration purposes, reducing network overhead and improving transmission efficiency while maintaining service continuity.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS12543023B2Communication method and communication apparatus
Publication Date: 2026.02.03 HUAWEI TECH CO LTD
  • US12543023B2 patent drawing
  • US12543023B2 patent drawing
  • US12543023B2 patent drawing

AI summary

This application provides a communication method and a communication apparatus. The method includes: A terminal device receives first information, where the first information includes first indication information and/or second configuration information, the first indication information is used to indicate that the second configuration information is the same as or different from first configuration information, the second configuration information is configuration information corresponding to a first service in a second cell, the first configuration information is configuration information corresponding to the first service in a first cell, and the second cell is a neighboring cell of the first cell; and the terminal device receives, based on the first information, data of the first service provided by the second cell. In this way, a service delay can be reduced and service continuity can be improved.