IPTV Receiver Channel Map Management via Provision Records
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Solution Overview
Problem
Conventional IPTV systems face challenges in efficiently managing and updating channel map information, leading to difficulties in searching for and obtaining IPTV services effectively.
Innovation Solution
The method involves transmitting a provision information record containing location information of a master system information (SI) table, which includes channel map management information such as identifier information of a service provider, version information, and pointers to channel map records, allowing for efficient retrieval and updating of IPTV service information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional IPTV systems transmit channel map information through traditional broadcasting methods, then the system structure remains simple, but the efficiency of searching for and obtaining IPTV services deteriorates
Solution Approach 1:
The patent introduces a channel map management information record as an intermediary data structure that mediates between the IPTV service provider and the receiver. This record contains organized information about channel maps, including pointers to actual channel map records and update timestamps, enabling efficient service discovery without complicating the overall system architecture.
Solution Approach 2:
The system performs preliminary actions by pre-organizing channel map information into management information records that are transmitted in advance. The receiver can then efficiently search for and obtain IPTV services by referencing pre-loaded channel map data, improving service acquisition efficiency without requiring complex real-time queries.
2Reliability
If channel map information is updated frequently to reflect service changes, then the accuracy and timeliness of service information improves, but the complexity of managing updates and ensuring consistency deteriorates
Solution Approach 1:
The patent implements a feedback mechanism through timestamp fields in the channel map management information records. These timestamps indicate when the channel map information was last updated, allowing the receiver to automatically determine whether updates are available and to what extent, simplifying the update management process while ensuring information accuracy.
Solution Approach 2:
The system dynamically manages channel map information by allowing the management information records to be updated with new timestamps and pointers when service changes occur. This dynamic approach enables the system to adapt to service changes without requiring complex reconfiguration of the entire channel map structure.
3Quantity of substance
If detailed channel map records are transmitted for all channels, then the completeness of channel information improves, but the amount of data transmission and processing requirements deteriorates
Solution Approach 1:
The patent segments channel map information into a hierarchical structure where a management information record contains pointers to individual channel map records. This segmentation allows the receiver to first obtain the management information (which is lightweight) and then selectively retrieve only the specific channel map records needed, reducing unnecessary data transmission and processing load while maintaining information completeness when required.
Data Source
AI summary
AN IPTV receiver and a method of providing channel map management information are provided. A network interface transmits and receives an IP packet through a network. An IP network stack checks a destination of the received IP packet and classifies the IP packet according to a protocol. A Service Information (SI) decoder parses a system information (SI) decoder parsing a provision information record included in the IP packet to read location information of a master SI table included in the provision information record, and parses a master SI table record included in the IP packet to read channel map management information included in the master SI table record. An IPTV terminal function (ITF) operation controller controls the reception of the master SI table record based on the read location information of the master SI table.