Multicast Broadcast Service Map Scheduling Interval Optimization

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Solution Overview

Problem

In existing mobile communication systems, terminals consume excessive power as they continuously receive and analyze multicast and broadcast service maps, which are updated frequently by the base station, leading to increased power usage.

Innovation Solution

The method involves setting a multicast and broadcast service map scheduling interval longer than the transmission cycle, allowing terminals to receive the MBS map less frequently and only when necessary, thereby reducing power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If the terminal continuously receives and analyzes the MBS map at each transmission cycle, then the terminal can acquire the latest MBS packet information, but the terminal's power consumption increases

Engineering Contradiction:

ImproveMBS packet information acquisitionVSAvoidterminal power consumption

Core Design Contradiction:

Loss of informationVSUse of energy by moving object

Solution Approach 1:

The terminal receives the MBS map at predetermined intervals rather than continuously at every transmission cycle. The base station transmits the MBS map periodically, and the terminal is configured to receive and analyze only at specific intervals, converting continuous action into periodic action to reduce power consumption while maintaining information acquisition capability

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The terminal performs partial reception of the MBS map by receiving it only at necessary intervals rather than at every transmission cycle. This partial action is sufficient to maintain service quality while avoiding excessive power consumption associated with continuous reception

Inventive Principle:

Principle #16Partial or excessive action

2Productivity

If the base station transmits the MBS map at a short transmission cycle, then the MBS service updates frequently, but the terminal's power consumption increases due to frequent reception

Engineering Contradiction:

ImproveMBS service update frequencyVSAvoidterminal power consumption

Core Design Contradiction:

ProductivityVSUse of energy by moving object

Solution Approach 1:

The system implements different periodic cycles for base station transmission and terminal reception. The base station transmits the MBS map at a first periodic cycle for service updates, while the terminal receives and analyzes the MBS map at a second periodic cycle that is longer than the first, allowing frequent service updates without requiring frequent terminal reception

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The base station prepares and transmits the MBS map in advance at optimized intervals, allowing the terminal to receive updated information before it would otherwise need to, reducing the terminal's reception frequency while maintaining service quality

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS8411609B2Method for transmitting and receiving multicast and broadcast service

Publication Date: 2013.04.02 ELECTRONICS & TELECOMM RES INST

AI summary

A terminal receives a map scheduling interval that is set to be greater than a multicast and broadcast service map transmission cycle by a base station from the base station, and receives a multicast and broadcast service map from the base station according to the received map scheduling interval.