MBMS Error Handling via Unicast Bearer Switching

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Solution Overview

Problem

Existing communication systems face challenges in timely data transmission and reducing delay during Multimedia Broadcast Multicast Service (MBMS) errors in LTE networks, leading to potential data loss or significant delays.

Innovation Solution

A method is introduced to process MBMS errors by receiving indication information of the error, establishing a unicast bearer, and sending data through this bearer instead of the MBMS bearer, ensuring timely data delivery. This involves acquiring error indicators from network equipment, forming indication information, and sending it to an Application Server (AS) to establish a unicast bearer for data transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If MBMS error processing is implemented using existing communication systems, then data transmission can occur, but significant delays and data loss occur during MBMS errors

Engineering Contradiction:

Improvedata transmission reliabilityVSAvoidtransmission delay

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system performs preliminary actions by establishing a unicast bearer as a backup transmission path before MBMS errors occur. When errors are detected, the system can immediately switch to this pre-prepared unicast bearer, avoiding the time-consuming process of establishing a new connection during error conditions.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The unicast bearer acts as an intermediary transmission channel between the base station and user equipment when the MBMS bearer fails. The system uses the unicast bearer as a mediator to relay data that would otherwise be transmitted through the failed MBMS path, ensuring continuous data flow.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If MBMS error processing is implemented using existing communication systems, then data transmission can occur, but data loss occurs during MBMS errors

Engineering Contradiction:

Improvedata transmission reliabilityVSAvoiddata loss

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

The unicast bearer serves as an intermediary channel that takes over data transmission when the MBMS bearer experiences errors. This ensures that data packets that would be lost in the failed MBMS path are instead transmitted through the reliable unicast bearer, preventing data loss.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system prepares a backup unicast bearer in advance as a cushioning measure against MBMS failures. This pre-established alternative path acts as insurance, ready to immediately承接 data transmission if the primary MBMS path fails, thereby cushioning against potential data loss.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS10129042B2MBMS error processing method, communication node, communication system, and storage medium

Publication Date: 2018.11.13 XIAN ZHONGXING NEW SOFTWARE

AI summary

The present invention relates to the field of communications. Disclosed are an MBMS error processing method, a communications node, and a communications system, which are designed for solving the problem in the prior art that data cannot be transmitted in time when an MBMS error occurs. The method comprises: receiving indication information of an MBMS error; establishing a unicast bearer according to the indication information; and sending data through the unicast bearer, the data being data that a user equipment is receiving through an MBMS bearer or data that the user equipment is interested in to receive when the MBMS error occurs. Also disclosed is a computer storage medium.