Cellular Network Broadcast Data Integration
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Solution Overview
Problem
Existing cellular networks face challenges in efficiently supporting both mobile video broadcast and data communication, as current methods either require separate networks or result in inefficient frequency spectrum use due to sectorization, leading to high costs and suboptimal resource allocation.
Innovation Solution
A cellular network system with a central control node that allocates frequency and time slots for both broadcast and data communication, allowing base stations to transmit video broadcast data and perform data communication within the same network, thereby optimizing frequency spectrum use and resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an individual broadcast network (DVB-H or DMB system) is employed to support mobile video broadcast service, then video broadcast service can be provided, but the cost increases due to requiring two types of independent networks (broadcast network and cellular network) to perform mobile communication and video broadcast simultaneously
Solution Approach 1:
The patent merges broadcast communication and data communication into a single cellular network system. The base station transmits both broadcast video data and communication data through the same network infrastructure, eliminating the need for separate broadcast networks (DVB-H or DMB) and reducing overall system complexity while maintaining reliable video broadcast service
2Adaptability or versatility
If video service is sent as data using streaming media in existing cellular networks, then video broadcast service can be provided in cellular networks, but frequency spectrum use becomes inefficient because each cell has to send multiple copies individually
Solution Approach 1:
The patent makes the cellular network infrastructure universal by enabling it to perform both traditional communication functions and broadcast video functions through the same base station and frequency resources. The base station transmits broadcast data and communication data using different time slots and frequency allocations within the same network, eliminating the need for separate broadcast infrastructure and improving spectrum efficiency
3Productivity
If cellular networks are sectorized to reduce interference and expand capacity, then interference is reduced and capacity is expanded, but it becomes more difficult to carry out video broadcast using the current sector-based cellular networks
Solution Approach 1:
The patent segments the frequency spectrum into different time slots and frequency allocations, with specific time slots dedicated to broadcast communication and others to data communication. This segmentation allows the sectorized cellular network to maintain its interference-reduction benefits while enabling efficient video broadcast by coordinating transmissions across sectors in a time-divided manner
Data Source
AI summary
A cellular network system and a method for realizing broadcast communication and data communication utilize a cellular network to carry out video data broadcast and data communication with terminals. The cellular network system includes a central control node and base stations. The central control node generates control information to control the base stations to broadcast video broadcast data to the terminals during the time slot for video data broadcast, and said control information includes frequency allocation information and time slot allocation information. With the cellular network system and method thereof for realizing video broadcast and data communication in the cellular network, video broadcast and data communication are incorporated in the sectorized cellular network while avoiding a lowered efficiency of frequency spectrum use during video broadcasting due to sectorization.