Application Server Mediates Radio Environment Capability Exchange
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Solution Overview
Problem
In wireless communication systems, the lack of radio environment information exchange between different types of terminals, such as CSI UEs and IMS UEs, hinders the smooth performance of combined services, leading to potential communication failures when multimedia services are attempted without recognizing the capabilities of the counterpart terminal.
Innovation Solution
A method is introduced where an application server sends a request message including radio environment capability to a second terminal during session setup, and the second terminal responds with its own radio environment information, allowing the application server to analyze and forward this information to the first terminal, enabling multimedia communications only when the second terminal supports MultiRAB/DTM.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If radio environment information exchange is not implemented between different terminal types, then the system maintains simplicity in communication protocols, but combined services fail to perform smoothly and communication failures occur
Solution Approach 1:
The patent introduces an application server as an intermediary that facilitates radio environment information exchange between different terminal types (CSI UE and IMS UE). The application server receives capability information from one terminal, analyzes it, and forwards relevant information to the other terminal, enabling reliable combined service performance without requiring direct complex interaction protocols between heterogeneous terminals.
Solution Approach 2:
The patent segments the information exchange process into distinct phases: capability information collection during session setup, capability information analysis by the application server, and selective information forwarding. This segmentation allows the system to implement reliable communication while maintaining protocol simplicity by handling complexity in a distributed, step-by-step manner rather than requiring all terminals to support complex protocols simultaneously.
2Reliability
If multimedia services are attempted without recognizing counterpart terminal capabilities, then service initiation is fast and simple, but communication failures occur due to capability mismatch
Solution Approach 1:
The patent implements preliminary action by having terminals exchange capability information during the session setup phase, before actual multimedia service execution. The application server analyzes these capabilities in advance and determines service compatibility, ensuring communication success while minimizing time loss by performing capability verification during the inevitable setup process rather than adding separate verification steps.
3Adaptability or versatility
If radio environment capability information is exchanged between different terminal types, then multimedia communication satisfaction is enhanced, but the message transmission protocol becomes more complex
Solution Approach 1:
The application server acts as a mediator that handles the complexity of capability information exchange. It receives diverse capability information from different terminal types, standardizes the data format, performs compatibility analysis, and generates simplified service configuration messages. This approach enhances service compatibility while preventing protocol complexity from propagating to the terminal devices.
Solution Approach 2:
The patent transforms capability information from different terminal types into standardized parameters that can be uniformly processed by the application server. By changing the representation format of radio environment capabilities into a common parameter structure, the system achieves high adaptability across different terminal types without requiring complex terminal-side protocol handling.
Data Source
AI summary
A method for transmitting information in a wireless communication system and a wireless communication terminal supporting the method, are discussed. In one embodiment, when an application server sends to a receiving terminal a specific message for checking radio environment information or a message including a radio environment capability, the receiving terminal having received the message may send a response message with its own radio environment information to the application server, such that the radio environment information related to the receiving terminal can be sent to the sending terminal after analyzed by the application server.