RedCap UE Paging Using Dedicated P-RNTI and DCI Signaling
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Solution Overview
Problem
Existing wireless communication technologies do not effectively address the specific paging needs of RedCap UEs, leading to unnecessary power consumption and inefficiencies due to shared system information modifications and paging procedures with legacy UEs.
Innovation Solution
A method and apparatus for dedicated paging of RedCap UEs, utilizing a new P-RNTI and reserved bits in DCI to indicate specific system information modifications and paging messages, enabling adaptive initial BWP configurations and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If shared paging procedures are used for both legacy UEs and RedCap UEs, then device complexity is reduced and compatibility is improved, but power consumption increases and paging efficiency deteriorates
Solution Approach 1:
The patent segments the paging procedure into separate paths for legacy UEs and RedCap UEs by introducing a dedicated P-RNTI for RedCap devices. This segmentation allows RedCap UEs to monitor only their dedicated paging occasions and receive only relevant system information, eliminating the need to process legacy UE paging messages and reducing power consumption while maintaining procedural simplicity through standardized mechanisms.
2Productivity
If dedicated paging for RedCap UEs is implemented, then paging efficiency and power consumption are improved, but system complexity and implementation difficulty increase
Solution Approach 1:
The patent introduces a dedicated P-RNTI as an intermediary identifier specifically for RedCap UEs. This intermediary element mediates between the network and RedCap devices, enabling dedicated paging occasions and system information delivery without requiring fundamental changes to the overall paging architecture. The P-RNTI acts as a key that unlocks dedicated resources while maintaining compatibility with existing legacy UE procedures.
Solution Approach 2:
The patent applies local quality by providing differentiated paging resources specifically tailored to RedCap UE requirements. RedCap UEs receive dedicated paging occasions, dedicated system information blocks, and customized configurations for their specific capabilities and use cases, while legacy UEs continue to use the original paging mechanism. This localized optimization improves efficiency for RedCap devices without affecting the overall system.
3Loss of information
If RedCap UEs monitor all system information modifications, then information completeness is improved, but power consumption and processing overhead increase
Solution Approach 1:
The patent extracts and separates system information relevant to RedCap UEs from the general system information broadcast. By introducing dedicated system information blocks configured specifically for RedCap devices and delivering them through dedicated paging occasions identified by a dedicated P-RNTI, the system allows RedCap UEs to receive only their relevant information without monitoring all system information modifications intended for legacy UEs, thereby reducing power consumption while maintaining information completeness for their specific needs.
Data Source
AI summary
Embodiments of the present application are directed to a method and apparatus for paging dedicated for devices with reduced capabilities. The method may include: receiving a DCI identified with a P-RNTI in a PO; and obtaining information dedicated for a device with reduced capabilities according to the DCI.