NR-Enabled UE Relay for Non-NR Voice Calls in 5G
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Solution Overview
Problem
Most existing user equipment (UE) devices are not New Radio (NR) enabled, preventing voice calls in NR-only coverage areas, which is particularly problematic in emergency situations where communication is critical.
Innovation Solution
A method is provided to enable device-to-device voice calls by identifying an NR-enabled UE device within range and using it to relay voice call requests over a 5G NR communications network, even if the requesting device is not NR enabled, through proximity sensing and ProSe technology.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a fully integrated 5G NR network is deployed, then network capacity and data rates are improved, but voice call availability deteriorates for non-NR enabled devices
Solution Approach 1:
The patent introduces an NR-enabled device as an intermediary relay node between non-NR enabled devices and the 5G NR network. The relay device receives voice call requests from non-NR devices, establishes NR connections to the network, and forwards calls bidirectionally, enabling voice service availability without requiring non-NR devices to have native NR capability.
2Productivity
If NR-only coverage areas are established, then network efficiency is improved, but device compatibility deteriorates
Solution Approach 1:
The patent enables NR-enabled devices to perform multiple functions: they can directly communicate with the 5G NR network for high-speed data and simultaneously act as relays for non-NR devices. This multi-functionality allows the network to maintain NR-only coverage for efficiency while providing universal access to both NR and non-NR enabled devices through the relay mechanism.
3Reliability
If device-to-device relay communication is implemented, then voice call accessibility is improved for non-NR devices, but system complexity increases
Solution Approach 1:
The patent implements self-service mechanisms where NR-enabled devices automatically detect non-NR devices in proximity, initiate relay connections, and manage call routing without requiring complex network coordination. The relay functionality is triggered automatically when non-NR devices attempt voice calls, reducing the need for complex provisioning and management infrastructure.
Data Source
AI summary
A method for making device to device calls is disclosed. A 5G cellular network that is New Radio (NR) enabled is provided in a first geographic location. A first user equipment (UE) device that is NR enabled in the first geographic location is identified. A request to make a voice call using the NR from the first UE device that is NR enabled is received. The request originates from a second UE device that is not NR enabled. The first UE device is within a range of the second UE device. In response to receiving the request to make the voice call, the voice call is sent over the 5G communications network.