Interactive Data Service in Mobile Communication Systems
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current mobile communication systems for high-speed data transmission, such as 3GPP2, do not support interactive data services due to the lack of a reverse channel for feedback information, limiting the ability to provide interactive broadcast services.
Innovation Solution
A method is introduced that allows for interactive data service by using a dedicated channel for reverse transmission alongside a common channel for forward transmission, enabling bi-directional communication between a base station and mobile stations, which supports multimedia services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a broadcast service is provided using a common channel, then high-speed data transmission is achieved, but excessive consumption of cell capacity occurs
Solution Approach 1:
The communication channel is segmented into two distinct types: common channels for broadcast services and dedicated channels for interactive services. This segmentation allows the system to provide high-speed data transmission through common channels while managing cell capacity by using dedicated channels only when interactive services are required, thus resolving the contradiction between transmission speed and cell capacity consumption.
2Quantity of substance
If no reverse channel is used for broadcast service, then cell capacity is conserved, but interactive broadcast service cannot be provided
Solution Approach 1:
The system dynamically adapts its channel configuration based on service requirements. When interactive services are needed, a reverse dedicated channel is activated alongside the forward common channel. When only broadcast services are required, the system operates with just the common channel, conserving cell capacity. This dynamic adjustment resolves the contradiction between capacity conservation and interactive capability.
3Productivity
If a dedicated channel is used for interactive service, then communication efficiency is improved, but cell capacity consumption increases
Solution Approach 1:
The system applies different channel qualities to different service types: common channels with higher capacity allocation for broadcast services, and dedicated channels with optimized parameters for interactive services. This local quality differentiation ensures that dedicated channels are used only where interactive communication efficiency is critical, while common channels handle the bulk of data transmission, thus balancing communication efficiency with cell capacity consumption.
Data Source
AI summary
A method for providing an interactive data service between a base station and a mobile station in a mobile communication system including at least one mobile station, the base station communicating with the mobile station, and a server connected to the base station. The base station simultaneously transmits data transmitted from the server, to one or more mobile stations over a forward common channel. A particular mobile station receiving a service through the common channel transmits reverse transmission data over a dedicated channel.