Relay Network Data Pause for Voice Call Reliability
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Solution Overview
Problem
In wireless communication networks, voice calls often drop due to simultaneous voice and data communication requirements, which increase signaling load and processing delays in the Radio Network Controller, leading to poor voice call performance in mobile communication devices.
Innovation Solution
A method involving the mobile communication device sending a pause data indicator to the relay network during a voice call to suspend data transfer, allowing essential data to be received while maintaining the voice call, and resuming data transfer after the call is terminated, without requiring modifications to the wireless network or tearing down data sessions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If simultaneous voice and data communication is maintained in the wireless network, then data transfer continues without interruption, but voice call performance deteriorates due to increased signaling load and processing delays in the Radio Network Controller
Solution Approach 1:
The system segments the network into wireless network and relay network components, allowing independent control of data transfer. The mobile communication device can pause data transfer in the relay network while maintaining voice calls in the wireless network, resolving the conflict between voice call reliability and data transfer productivity.
Solution Approach 2:
The mobile communication device sends a pause data indicator to the relay network before the voice call is affected by data transfer signaling load. This preliminary action prevents the deterioration of voice call performance by proactively suspending data transfer that would otherwise increase RNC signaling load.
2Reliability
If data transfer is suspended in the relay network during voice calls, then voice call performance is maintained, but data transfer is interrupted
Solution Approach 1:
The system implements periodic resumption of data transfer by sending resume data indicators after voice calls are terminated. Data transfer is paused during voice calls and automatically resumed afterward, creating a periodic pattern that maintains voice call performance while minimizing data transfer loss.
Solution Approach 2:
The relay network acts as an intermediary that buffers data during voice call interruptions. Essential data can be identified and delivered during calls, while non-essential data is paused and resumed afterward, reducing the perceived loss of time for data transfer.
3Adaptability or versatility
If dynamic radio bearer configurations are adopted for simultaneous voice and data communication, then both services can operate concurrently, but signaling load in the Radio Network Controller increases
Solution Approach 1:
The patent extracts data transfer control from the wireless network RNC to the relay network. By pausing data transfer at the relay network level rather than managing it through wireless network signaling, the signaling load in the RNC is reduced while maintaining the ability to support both voice and data services.
4Ease of manufacture
If serial processing is used in the Radio Network Controller, then implementation is simpler, but processing delays are introduced for operations vital to communication performance
Solution Approach 1:
The system segments processing functions between the wireless network RNC and the relay network. Time-critical voice call operations are handled by the simple serial-processing RNC, while data transfer control is handled by the relay network, eliminating the need for complex parallel processing in the RNC while reducing overall processing delays.
Data Source
AI summary
Methods and apparatus for use by a mobile communication device (MCD) operating in a wireless communication network for increasing call performance through controlled temporary interruption of data transfer by the relay network outside of the wireless network. One illustrative method involves identifying a voice call request at the MCD operating in the wireless network and, in response to identifying the voice call request, performing the following actions of sending a pause data indicator to the relay network over the wireless communication network; sending a call confirm or setup voice call message to the wireless communication network for establishing the voice call; and maintaining the voice call at the mobile communication device. The pause data indicator is defined to pause data transfer for the MCD at the relay network. The method may further involve identifying a voice call termination request during the voice call and, in response to identifying the voice termination request, performing the following actions of sending a disconnect voice call message to the wireless communication network; and sending a resume data indicator to the relay network over the wireless communication network.