Wake-Up Signal Monitoring Configuration for Wireless Devices
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Solution Overview
Problem
Communication nodes in communication networks are not sufficiently aware of the optimal time to monitor for wake-up signals, leading to inefficient operations and reduced power saving abilities, as they lack clear instructions on how to monitor these signals.
Innovation Solution
A network node determines the appropriate time for user equipment to monitor wake-up signals, providing configuration information through medium access control elements or downlink control information, which specifies whether and how to monitor the signals based on discontinuous reception cycles, data activity, and acknowledgement receipt.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If user equipment continuously monitors for wake-up signals without clear timing instructions, then the wake-up signal can be detected, but power consumption increases and power saving ability is reduced
Solution Approach 1:
The network node provides configuration information in advance that specifies the exact timing and conditions for monitoring wake-up signals. User equipment uses this pre-configured information to determine when to monitor, eliminating the need for continuous monitoring while ensuring wake-up signals are not missed. This preliminary configuration resolves the contradiction by establishing optimal monitoring times before operation begins.
Solution Approach 2:
The monitoring configuration is made dynamic and adaptable rather than fixed. The network node can update monitoring configurations based on current network conditions, traffic patterns, and user equipment state. This dynamic approach allows the system to adjust monitoring intensity and timing, maintaining reliable wake-up signal detection while optimizing power consumption according to actual needs.
2Reliability
If user equipment monitors wake-up signals at all times, then wake-up detection is reliable, but operational efficiency decreases due to unnecessary wake-ups
Solution Approach 1:
Configuration information is provided in advance that specifies exact monitoring timing and wake-up conditions. User equipment prepares by storing this configuration and only activates monitoring at predetermined optimal times, ensuring reliable detection while avoiding unnecessary wake-ups during periods when no data transmission is expected.
Solution Approach 2:
The monitoring parameters such as monitoring interval, timing offset, and activation conditions are dynamically adjusted based on network conditions and traffic patterns. This parameter optimization ensures that monitoring occurs reliably when needed while minimizing unnecessary wake-ups, thereby improving operational efficiency without sacrificing detection reliability.
3Ease of operation
If separate messages are provided for wake-up signal monitoring instructions, then monitoring can be optimized, but signaling overhead and system complexity increase
Solution Approach 1:
The wake-up signal monitoring configuration information is merged with existing downlink control information channels rather than being transmitted through separate dedicated messages. By integrating the monitoring configuration into existing signaling frameworks, the system achieves optimized monitoring control without increasing overall signaling overhead or system complexity.
Solution Approach 2:
Existing downlink control information structures are made multi-functional by incorporating wake-up signal monitoring configuration capabilities. The same signaling channels used for other control purposes are also utilized to convey monitoring timing and condition information, eliminating the need for separate dedicated signaling paths and reducing system complexity while maintaining ease of operation.
Data Source
AI summary
In one exemplary embodiment, a method includes: determining, by a network node, information of at least one period of time that a user equipment is to monitor for a wake-up signal to decode, where the information comprises indications of a configuration or a behavior for the user equipment to dynamically control the monitoring of the wake-up signal for the decoding; and communicating signaling comprising the information towards the user equipment. In another exemplary embodiment, a method includes: receiving from a network node, by a user equipment, information of at least one period of time that the user equipment is to monitor for a wake-up signal to decode, where the information comprises indications of a configuration or a behavior for the user equipment to dynamically control the monitoring of the wake-up signal for the decoding; and using the information to perform the monitoring of the wake-up signal for the decoding.