PDCCH Power Saving Configuration Across Multi-RAT Cell Groups
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Solution Overview
Problem
Existing wireless communication systems, particularly in 5G NR, face challenges in optimizing power saving mechanisms across different radio access technologies (RATs), frequency carriers, and network configurations, leading to inefficiencies and compatibility issues in multi-RAT dual-connectivity scenarios.
Innovation Solution
Implementing a method and system for power saving configuration that supports both Release 16 and Release 17 SSSG switching mechanisms, allowing unified power saving configurations across licensed and unlicensed bands, and enabling consistent power saving strategies across multiple cell groups, frequency carriers, and bandwidth parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple SSSG switching mechanisms (Release 16 and Release 17) are supported simultaneously, then compatibility and versatility are improved, but device complexity and configuration management become worse
Solution Approach 1:
The base station is configured to support and transmit both Release 16 and Release 17 SSSG switching mechanism parameters simultaneously. The system provides universal compatibility by enabling the network to transmit multiple capability indicators (first capability indicator for R16, second capability indicator for R17) to different UEs based on their supported releases, allowing a single base station to serve both legacy and advanced UE types without requiring separate infrastructure deployments
Solution Approach 2:
Different SSSG switching mechanisms are applied to different UEs based on their individual capabilities. The base station determines which capability indicator to transmit based on the specific UE's supported release version, allowing each UE to receive the appropriate configuration for its capability level while maintaining overall system compatibility
2Use of energy by moving object
If unified power saving configurations are applied across all cell groups and frequency carriers, then power efficiency is improved, but adaptability to different network scenarios is reduced
Solution Approach 1:
The same SSSG switching mechanism is applied universally across all cell groups and frequency carriers configured for a UE. This unified approach ensures consistent power saving behavior throughout the entire network configuration, allowing the UE to manage its power consumption efficiently across licensed and unlicensed bands, multiple cell groups, and different bandwidth parts using a single coherent mechanism
Solution Approach 2:
The system allows dynamic selection of which unified SSSG switching mechanism to apply based on network conditions and UE capabilities. The base station can determine whether to apply the Release 16 or Release 17 mechanism across all cell groups and frequency carriers, enabling flexible adaptation to different network scenarios while maintaining unified power saving management
Data Source
AI summary
A method performed by a base station (BS) for power saving configuration is provided. The method includes receiving at least one of a first Resource Control (RRC) parameter or a second RRC parameter, the first RRC parameter indicating that a user equipment (UE) supports a first search space set group (SSSG) switching mechanism, and the second RRC parameter indicating that the UE supports a second SSSG switching mechanism; and transmitting, to the UE, one or more physical downlink control channel (PDCCH) configurations including one or more third RRC parameters, all of the one or more third RRC parameters indicating a same one of the first SSSG switching mechanism and the second SSSG switching mechanism.