IPTV Channel Switching via Service Package Segmentation
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Solution Overview
Problem
Existing Broadcast TV (BTV) systems lack flexible program control and authorization capabilities, leading to limited control over the number and content of programs accessible by users and causing delays in channel switching due to centralized control mechanisms.
Innovation Solution
The system divides BTV programs into service packages based on authorization and charging attributes, allowing users to switch channels within a package without additional authorization or charging operations, and establishes new sessions for different packages, enabling flexible authorization and charging while ensuring fast channel switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If program authorization table is issued to DSLAM in advance, then fast channel switching is achieved, but flexible program control and authorization capability are limited
Solution Approach 1:
The patent segments the authorization control into two parts: a static program authorization table stored in DSLAM for fast channel switching, and a dynamic service package management system at the IPTV server for flexible control. This segmentation allows the system to maintain fast switching performance while gaining flexible authorization capabilities through the service package mechanism.
Solution Approach 2:
The patent introduces service packages as an intermediary layer between the user and the program authorization table. The service package contains multiple channels and defines authorization rules, acting as a mediator that enables flexible control without requiring changes to the fast channel switching mechanism at the DSLAM level.
2Adaptability or versatility
If centralized server controls every channel request, then flexible authorization is achieved, but channel switching delay increases
Solution Approach 1:
The patent segments the authorization control functionality between the IPTV server (service package management) and the DSLAM (program authorization table). The IPTV server handles flexible service package authorization, while the DSLAM handles fast channel switching within packages using the pre-stored authorization table, eliminating the need for centralized server intervention in every channel request.
Solution Approach 2:
The patent performs preliminary actions by pre-configuring service packages at the IPTV server and pre-loading the program authorization table at the DSLAM. This preliminary setup enables fast channel switching without real-time centralized server involvement, as the authorization rules are already established in advance.
3Speed
If simple program authorization table is used, then fast channel switching is enabled, but control over number and content of programs is limited
Solution Approach 1:
The patent segments the authorization system into a simple program authorization table at the DSLAM for fast switching and a complex service package management system at the IPTV server for detailed control. This segmentation allows the DSLAM to maintain simplicity and fast performance while the IPTV server handles the complexity of controlling the number and content of programs through service package definitions.
Solution Approach 2:
The service package acts as an intermediary that translates complex authorization requirements into simple table lookups. The service package defines which channels are grouped together and what authorization rules apply, allowing the simple program authorization table to provide fast switching while the service package layer provides sophisticated control over program number and content.
Data Source
AI summary
A method for realizing video live broadcast, includes: receiving a request for creating conversation from a user equipment, the request carrying indication information for identifying video live broadcast BTV service packet, the BTV packet includes several channel program with the same authorization attribute and the same accounting attribute; sending BTV service control information corresponding to BTV service packet to a network marginal equipment corresponding to the user equipment UE; creating the conversation between a IPTV server and the user equipment UE according to the request; sending the channel program that the UE need access to the UE according to the BTV service control information. Corresponding equipment and system also are provided. The invention can ensure flexible authorization and accounting capability, meanwhile it also ensure the user can switch channel quickly according to the present invention.