Wireless Device Downlink Message Handling via Non-Cellular Link
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Solution Overview
Problem
Wireless devices supporting both cellular and non-cellular connections face redundant processing overhead, leading to increased power consumption and reduced battery life when receiving downlink messages through both connections simultaneously.
Innovation Solution
The wireless device operates in a connected mode, establishing a non-cellular connection with a UE, and refrains from receiving downlink messages via the cellular connection by receiving a wake-up signal, allowing it to receive messages via the non-cellular connection instead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wireless device receives downlink messages via both cellular and non-cellular connections simultaneously, then message delivery reliability is improved, but processing overhead and power consumption increase
Solution Approach 1:
The wireless device dynamically switches between cellular and non-cellular connection modes based on operational state. When in connected mode with a UE, the device uses the non-cellular connection for message reception and suppresses cellular connection message processing. When not in connected mode, the device receives messages via cellular connection. This dynamic adaptation resolves the contradiction by adjusting the message reception path according to real-time operational conditions.
Solution Approach 2:
The device changes the parameter of message reception pathway based on connected mode status. By detecting whether it is in connected mode with a UE, the device switches between two message reception configurations: (1) receiving via both cellular and non-cellular connections when not in connected mode, and (2) receiving only via non-cellular connection when in connected mode. This parameter change eliminates redundant processing and reduces power consumption while maintaining reliability.
2Reliability
If the wireless device decodes messages received via both cellular and non-cellular connections, then message reception completeness is improved, but processing overhead increases
Solution Approach 1:
The invention extracts and removes the redundant message processing path from the system. When the wireless device is in connected mode with a UE, it extracts the cellular connection message reception and decoding function from the active message processing chain, keeping only the non-cellular connection path. This extraction eliminates duplicate decoding operations while ensuring message reception completeness through the remaining non-cellular path.
Solution Approach 2:
The device applies partial action by selectively enabling message reception only through the non-cellular connection when in connected mode, rather than processing messages from both cellular and non-cellular connections. This partial action is sufficient to maintain message reception completeness because the non-cellular connection provides the necessary message delivery path, while avoiding the excessive processing of duplicate messages.
3Reliability
If the wireless device monitors both cellular and non-cellular connections for downlink messages, then message availability detection is improved, but battery life is reduced
Solution Approach 1:
The wireless device dynamically adjusts its message monitoring configuration based on connected mode status. When in connected mode with a UE, the device dynamically switches to monitoring only the non-cellular connection for downlink messages. When not in connected mode, it monitors the cellular connection. This dynamic adjustment ensures message availability detection is maintained through the active connection while significantly reducing battery consumption by eliminating redundant monitoring of the inactive connection.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A wireless device may establish a non-cellular connection with a user equipment (UE) to operate in a connected mode. Additionally, the wireless device and the UE may support cellular connections with a wireless network. If the wireless network sends a downlink message for the wireless device, the wireless device may refrain from receiving the downlink message via a cellular connection with the wireless network. For example, the wireless device may receive a wake-up signal from a network entity, the wake-up signal indicating that a message is available via the cellular connection. Based on operating in the connected mode, the wireless device may receive the message from the UE via the non-cellular connection instead of from the network entity via the cellular connection. In some examples, the UE may send a decoded version of the message to the wireless device.