Relay Network Data Pause for Voice Call Stability
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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 suboptimal voice call performance in mobile communication devices.
Innovation Solution
A method involving a mobile communication device sending a pause data indicator to the relay network during a voice call to suspend data transfer, allowing the relay network to buffer and resume data transmission after the call, without terminating data sessions or changing IP addresses, thus maintaining voice call quality without increasing wireless network signaling load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If simultaneous voice and data communication is allowed in the wireless network, then data transfer continuity is improved, but voice call reliability deteriorates due to increased signaling load and processing delays in the Radio Network Controller
Solution Approach 1:
The patent introduces a relay network as an intermediary layer between the wireless network and the data network. The relay network handles data transfer pauses and resumption, acting as a mediator that prevents direct interaction between voice call signaling and data transfer operations in the wireless network. This intermediary absorbs the complexity of coordinating voice and data, preventing signaling overload in the Radio Network Controller while maintaining both voice reliability and data continuity.
2Adaptability or versatility
If dynamic radio bearer configurations are adopted for simultaneous voice and data communication, then communication flexibility is improved, but signaling load in the Radio Network Controller increases
Solution Approach 1:
The patent extracts the complexity of dynamic radio bearer configuration and signaling management from the Radio Network Controller and relocates it to the relay network. The relay network handles data session management, pausing, and resumption operations, removing this complex signaling burden from the wireless network infrastructure. This extraction maintains communication flexibility through the relay network's adaptive data handling while preventing signaling overload in the Radio Network Controller.
3Ease of manufacture
If serial processing is used in the Radio Network Controller, then implementation simplicity is improved, but processing speed deteriorates due to delays in vital operations
Solution Approach 1:
The patent implements preliminary actions by having the mobile communication device proactively signal the relay network to pause data transfer before voice calls begin. This advance notification allows the relay network to pre-coordinate data session pausing and buffer management, preventing the need for complex real-time serial processing in the Radio Network Controller during voice calls. The preliminary action eliminates processing delays by resolving coordination issues before they arise.
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.