Multimedia File Distribution for Local Caller Ring Back Tone Caching

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Solution Overview

Problem

The existing caller ring back tone system faces challenges with high bandwidth requirements and storage costs due to offsite playing of multimedia files, leading to transmission delays and increased costs, especially with video caller ring back tones, and inefficient distribution of audio and video files.

Innovation Solution

A multimedia file distribution method that distributes multimedia files to caller ring back tone platforms based on a non-full distribution mode, storing frequently called files locally and using dynamic policies to optimize file storage and reduce transmission distances, thereby reducing backbone network load and costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multimedia files are distributed to all caller ring back tone platforms in full distribution mode, then all platforms can play any ring back tone, but storage costs and network bandwidth requirements increase significantly

Engineering Contradiction:
Improveplatform compatibilityVSAvoidstorage cost
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The patent applies local quality by distributing multimedia files selectively to specific caller ring back tone platforms based on their service areas and calling patterns, rather than uniformly to all platforms. Each platform receives only the files needed for its local and regional operations, optimizing storage utilization while maintaining necessary functionality.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent implements partial distribution by providing multimedia files to platforms only when and where needed, based on analysis of calling patterns and service requirements. This partial action approach avoids the excessive storage and bandwidth consumption of full distribution while ensuring adequate coverage for actual usage scenarios.

Inventive Principle:
Principle #16Partial or excessive action

2Reliability

If multimedia files are distributed to all caller ring back tone platforms, then file availability is maximized, but backbone network load and transmission delays increase

Engineering Contradiction:
Improvefile availabilityVSAvoidnetwork bandwidth
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The patent reduces backbone network load by implementing localized file distribution, where each caller ring back tone platform receives and stores only the multimedia files relevant to its service area. This localizes the storage function, reducing the bandwidth requirements for centralized distribution while maintaining file availability through regional caching.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent applies preliminary action by pre-distributing and caching multimedia files at regional caller ring back tone platforms before they are needed for actual ring back tone playback. This advance preparation reduces real-time network transmission requirements and ensures faster local playback while reducing backbone network bandwidth consumption.

Inventive Principle:
Principle #10Preliminary action

3Device complexity

If offsite playing is used for caller ring back tones, then centralized management is simplified, but transmission distances increase and user experience deteriorates

Engineering Contradiction:
Improvemanagement complexityVSAvoidtransmission delay
Core Design Contradiction:
Device complexityVSLoss of time

Solution Approach 1:

The patent reduces transmission delays by implementing preliminary distribution of multimedia files to regional platforms, which then cache and store these files locally. When a ring back tone is needed, the file is already available at the regional platform, eliminating or reducing the need for real-time offsite retrieval and playback, thus improving user experience while maintaining centralized management through the hierarchical distribution architecture.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4171001B1Multimedia file distribution method and multimedia management platform
Publication Date: 2025.08.06 ZTE CORP
  • EP4171001B1 patent drawingFigure 1~2
  • EP4171001B1 patent drawingFigure 3~4
  • EP4171001B1 patent drawingFigure 5

AI summary

The present disclosure relate to the field of communication technology, and provide a multimedia file distribution method, including: determining an offsite calling associated number corresponding to at least one subscriber number, with the offsite calling associated number corresponding to the subscriber number being a number of a terminal with a number of calls to the subscriber number exceeding a first threshold, and a home location of the offsite calling associated number is different from that of the subscriber number; and distributing a multimedia file associated with the subscriber number to a caller ring back tone platform of the home location of the offsite calling associated number corresponding to the subscriber number. The present disclosure further provides a multimedia control method, a multimedia management platform, a caller ring back tone platform, and a computer-readable storage medium.