Paging Design with Short Message Indicator for 5G UE Power Management
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G and LTE networks, face challenges in efficiently managing paging downlink control channels, which include short messages and scheduling information, leading to increased complexity and power consumption in user equipment (UE) operations.
Innovation Solution
The proposed solution involves a method where user equipment (UE) monitors for a paging downlink control channel containing a short message and scheduling information, processing the short message if present, and ignoring scheduling information when in a connected state, allowing for more efficient resource allocation and power management by repurposing DCI bits for short message indicators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UE processes both short messages and scheduling information in paging downlink control channels, then complete information is received, but hardware complexity and power consumption increase
Solution Approach 1:
The patent extracts scheduling information from the paging downlink control channel when the UE is in connected state, processing only the essential short message indicator while discarding redundant scheduling information that connected UEs do not need, thereby reducing hardware complexity without compromising essential information reception
Solution Approach 2:
The patent implements dynamic processing behavior based on UE state: in idle state, the UE processes both short messages and scheduling information for complete information reception, while in connected state, the UE processes only short messages and ignores scheduling information, adapting the processing complexity to the current operational context
2Reliability
If UE monitors and processes all paging control channel information, then no information is missed, but power consumption increases
Solution Approach 1:
The patent extracts and processes only the essential short message indicator from the paging downlink control channel when the UE is in connected state, removing the power-intensive processing of scheduling information that is not needed for connected UEs, thereby significantly reducing power consumption while maintaining essential communication functionality
Solution Approach 2:
The patent applies partial processing action appropriate to the UE state: connected UEs perform partial processing (only short messages) rather than complete processing (short messages plus scheduling information), since connected UEs have alternative channels for detailed scheduling information, thus reducing power consumption without missing critical information
3Ease of operation
If DCI bits are used for scheduling information, then scheduling is maintained, but short message capacity is reduced
Solution Approach 1:
The patent implements dynamic bit field interpretation based on UE state: for connected UEs, the DCI bits are interpreted as short message indicators providing concise notification, while for idle UEs, the same bits provide scheduling information, allowing the system to adapt the information capacity to match the operational needs of different UE states
Solution Approach 2:
The patent makes the DCI bit fields universal by enabling them to serve dual purposes: conveying short message indicators to connected UEs and scheduling information to idle UEs, allowing the same communication channel to efficiently serve multiple UE states with different information requirements without dedicated resources for each
Data Source
AI summary
Certain aspects of the present disclosure provide techniques communicating in a wireless network. In one embodiment, a method includes monitoring for a paging downlink control channel comprising downlink control information, wherein the downlink control information comprises a first short message; processing the first short message; determining if the control information further comprises scheduling information; processing the scheduling information if the downlink control information comprises scheduling information and the UE is not in a connected state; and ignoring the scheduling information if the downlink control information comprises scheduling information and the UE is in a connected state.