UE Wait Indication for Delayed Paging in Wireless Networks
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Solution Overview
Problem
Current wireless communication networks face challenges in efficiently supporting a wide range of devices with different data traffic profiles and latency requirements, particularly in scenarios where radio channel conditions are poor.
Innovation Solution
The implementation of a wait indication mechanism in user equipment (UE) that allows it to inform the network of a delayed response to a paging message until the radio connection improves, thereby reducing unnecessary retransmissions and conserving power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network retransmits paging messages when no response is received, then the network ensures reliable delivery, but the UE consumes more power and experiences increased latency
Solution Approach 1:
The patent introduces a wait indication message as an intermediary communication between UE and network. When the UE receives a paging message, it can send a wait indication to inform the network that it will delay its response until radio conditions improve. This intermediary message allows the network to understand the UE's state without requiring repeated paging retransmissions, thereby reducing unnecessary power consumption while maintaining reliable delivery for delay-tolerant services.
2Loss of time
If the UE responds immediately to paging messages, then the network achieves low latency, but the UE consumes more power due to frequent transmissions in poor radio conditions
Solution Approach 1:
The patent implements dynamic response behavior where the UE can adapt its paging response timing based on current radio conditions. Instead of a fixed immediate response protocol, the UE dynamically decides whether to respond immediately or send a wait indication to delay the response. This dynamic approach allows the system to optimize between latency and power consumption based on real-time channel quality, reducing power consumption in poor conditions while maintaining low latency when conditions are good.
3Adaptability or versatility
If the network supports multiple device types with different latency requirements, then the network achieves higher versatility, but the system complexity increases
Solution Approach 1:
The patent applies local quality by allowing different paging response behaviors for different service types or device categories. The network can configure specific UEs or service types to use the wait indication mechanism for delay-tolerant services (like IoT), while maintaining immediate response for delay-sensitive services (like voice or video). This localized application of the wait indication feature allows the network to support diverse device types with different latency requirements without requiring complete system redesign, thereby managing complexity while achieving versatility.
Data Source
AI summary
A method of managing a paging message for a user Equipment (UE) in a wireless communication network includes transmitting the paging message to the UE in the wireless communication network, receiving a wait indication from the UE, and delaying a retransmission of the paging message to the UE responsive to receiving a wait indication from the UE. A method of operating a UE in a wireless communication network includes receiving a paging message from a network node, and, responsive to receiving the paging message, transmitting a wait indication to the network node indicating a delay in transmission of a response to the paging message.