User Equipment Sleep Mode Activation Without Control Channel Decoding
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently activating a sleep mode at user equipment (UE) without relying on control channel decoding results, which can lead to delayed sleep mode activation and reduced power savings.
Innovation Solution
The implementation of a method and apparatus that allow a user equipment (UE) to activate a sleep mode for a subframe irrespective of the control channel decoding result associated with the control channel symbols received from a network node, by inactivating the receiver based on the presence or absence of a downlink shared channel grant.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE waits for control channel decoding result before activating sleep mode, then the reliability of sleep mode activation is improved, but the duration of power savings is reduced
Solution Approach 1:
The UE performs preliminary action by activating sleep mode before completing the control channel decoding process. The UE determines that sleep mode can be activated based on the control channel symbols received so far, without waiting for the complete decoding result, thereby extending the power savings duration while maintaining acceptable reliability through subsequent monitoring
2Measurement precision
If the UE activates sleep mode based on control channel decoding result, then the accuracy of sleep mode decision is improved, but the time delay in sleep mode activation is increased
Solution Approach 1:
The UE takes preliminary action by making the sleep mode decision based on the control channel symbols received up to the current point, without waiting for the complete decoding process to finish. This preliminary decision allows earlier sleep mode activation, reducing time delay, while the UE continues monitoring to ensure the decision accuracy is maintained
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network node, one or more control channel symbols in a subframe. The UE may activate a sleep mode for the subframe irrespective of a control channel decoding result associated with the one or more control channel symbols, wherein the control channel decoding result is associated with a presence or an absence of a downlink shared channel grant. Numerous other aspects are described.