Dynamic CLPC Reset Indication for 5G Power Efficiency
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G NR networks, face challenges in efficiently managing closed loop power control (CLPC) adjustments, leading to suboptimal power management and interference handling due to existing reset procedures that do not account for dynamic changes in interference profiles and user equipment (UE) conditions.
Innovation Solution
The system enhances CLPC management by allowing network nodes to dynamically reset or maintain CLPC adjustment states based on indications received from the network, enabling flexible power control strategies that adapt to changes in interference profiles and UE conditions, such as during RRC configurations or random-access procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If CLPC reset procedures are implemented according to existing protocols, then power control adjustments can be made, but power efficiency deteriorates due to unnecessary resets during dynamic interference conditions
Solution Approach 1:
The patent implements dynamic CLPC reset management where the network node determines whether to reset CLPC adjustment states based on current interference profiles and UE conditions. Instead of fixed reset procedures, the system adaptively decides on reset actions, allowing power control to dynamically adjust to changing network conditions while avoiding unnecessary resets that waste power.
Solution Approach 2:
The patent changes the parameter of CLPC adjustment state management by introducing flexible reset indications from network nodes. The system modifies the traditional binary reset/non-reset approach by allowing selective maintenance of CLPC states based on evaluated conditions, thereby optimizing power efficiency without compromising power control reliability.
2Object-affected harmful factors
If CLPC adjustment states are frequently reset to handle interference, then interference handling improves, but signaling performance deteriorates due to increased reset indications
Solution Approach 1:
The patent extracts the reset decision-making function from the UE and centralizes it in the network node. By having the network node determine whether CLPC resets are necessary based on overall network conditions, the system avoids excessive reset indications being sent to UEs, thereby reducing signaling overhead while maintaining effective interference handling where needed.
Solution Approach 2:
The system implements feedback mechanisms where network nodes monitor interference profiles and UE conditions, then send targeted CLPC reset indications only when necessary. This feedback-based approach ensures interference is handled effectively while minimizing unnecessary signaling exchanges between network nodes and UEs.
3Use of energy by moving object
If CLPC states are maintained during RRC configuration and random-access procedures, then power control optimization improves, but adaptability to new conditions deteriorates
Solution Approach 1:
The patent makes CLPC state management dynamic by allowing network nodes to evaluate whether maintaining or resetting CLPC states is appropriate during RRC configuration and random-access procedures. This dynamic approach enables the system to optimize power control by maintaining states when beneficial while still adapting to new conditions when necessary, resolving the contradiction between optimization and adaptability.
Data Source
AI summary
Apparatuses and methods for indications of CLPC reset are described. An apparatus is configured to receive, from a network node, a MAC-CE or DCI that includes an indication of closed loop power control (CLPC) reset information. The apparatus is also configured to reset or maintain a CLPC adjustment state in response to receiving the indication of the CLPC reset information in the MAC-CE or the DCI. Another apparatus is configured to receive, from a network node, information for CLPC at the UE, where the information for CLPC indicates that a CLPC adjustment state is unaffected during a configuration for OLPC or a random-access at the UE. The other apparatus is also configured to maintain the CLPC adjustment state at the UE, during OLPC configuring or a random-access procedure at the UE, based on the information for CLPC received from the network node.