Paging Mechanism Indication for UE Power Efficiency
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Solution Overview
Problem
Wireless communication systems face inefficiencies due to mismatched paging mechanisms between base stations and user equipment, leading to unnecessary power consumption and signal decoding failures in millimeter wave frequencies, where increased path loss and varied environmental factors complicate signal processing.
Innovation Solution
Implementing a mechanism where base stations provide an indication of the supported paging mechanism to user equipment through system information signals, using paging radio network temporary identifiers (P-RNTIs), and transmitting paging grants and messages accordingly, allowing UEs to identify and respond to the correct paging mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the base station transmits paging signals using an enhanced paging mechanism, then the network can support advanced features and improve reliability, but UEs that only support traditional paging mechanisms will waste power by attempting to decode incompatible signals
Solution Approach 1:
The base station transmits a paging mechanism indication signal before transmitting the actual paging signal. This preliminary indication allows the UE to determine in advance whether the upcoming paging signal uses a traditional or enhanced paging mechanism, enabling the UE to decide whether to wake up and decode the signal or remain in sleep mode, thus avoiding unnecessary power consumption while maintaining reliable communication for compatible devices
Solution Approach 2:
The paging mechanism indication signal acts as an intermediary between the base station's enhanced paging mechanism and the UE's traditional paging mechanism support. This intermediate signal provides compatibility information that bridges the gap between different paging mechanism types, allowing UEs to make informed decisions about signal decoding without directly processing incompatible enhanced paging signals
2Adaptability or versatility
If the base station uses traditional paging mechanisms, then all UEs can decode paging signals, but enhanced paging features and beamforming capabilities cannot be utilized
Solution Approach 1:
The system dynamically adapts the paging mechanism based on UE capability and network configuration. The base station can switch between traditional and enhanced paging mechanisms by changing the paging mechanism indication signal, allowing the system to be flexible in supporting different UE types while maintaining reliable decoding for each UE type through appropriate mechanism selection
Data Source
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AI summary
Methods, systems, and devices for wireless communications are described. A base station may transmit, within system information, a paging mechanism indication identifying one or more paging mechanisms supported by a network. The base station may transmit a paging grant in accordance with one of the one or more paging mechanisms supported by the network. The base station may transmit a paging message to a user equipment (UE) in accordance with the one of the one or more paging mechanisms supported by the network.