Uplink Transmission Power Prioritization Through Overlap Reporting
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in managing transmission power reductions due to overlapping uplink transmissions, leading to delayed and inefficient network adjustments, particularly in scenarios like carrier aggregation and dual connectivity, where the base station is unaware of user equipment's power reduction or dropping, impacting performance.
Innovation Solution
User equipment provides real-time indications to the network about power reduction or dropping due to overlapping uplink transmissions, using uplink control information or medium access control elements, specifying affected channels or cells, enabling timely network adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the base station manages transmission power reductions autonomously without user equipment indications, then the network control complexity is reduced, but the network awareness of power limitations is insufficient leading to delayed adjustments
Solution Approach 1:
The patent implements a feedback mechanism where user equipment transmits power reduction indications to the base station. This feedback loop enables the network to become aware of actual power limitations at the user equipment side, allowing timely scheduling adjustments. The indication can be transmitted via uplink control information or medium access control elements, providing continuous information flow about power status.
Solution Approach 2:
The user equipment autonomously determines its own power reduction status and generates the appropriate indications without requiring complex network-side power management algorithms. This self-service approach simplifies the base station's role while ensuring accurate power status reporting, as each user equipment independently monitors and reports its own limitations.
2Productivity
If the base station implements frequent power adjustments based on detailed user equipment status, then the communication performance is improved, but the network control complexity and processing overhead increase
Solution Approach 1:
User equipment autonomously monitors overlapping uplink transmissions and determines power reduction requirements without complex network-side algorithms. The base station receives ready-made indications and makes straightforward scheduling decisions, significantly reducing network control complexity while maintaining performance optimization.
Solution Approach 2:
The complex power status determination function is extracted from the base station and placed at the user equipment side. This extraction simplifies the base station's processing burden, as it only needs to receive and act upon the indications rather than calculate power status from multiple parameters.
3Loss of information
If the user equipment transmits detailed power status information frequently, then the network awareness is improved, but the uplink control overhead increases
Solution Approach 1:
Only the essential power reduction indication is extracted and transmitted, rather than sending complete power status data. This selective information transmission maintains network awareness while minimizing uplink overhead by sending only the critical decision-relevant information.
Solution Approach 2:
Instead of the base station requesting detailed power status information, the user equipment proactively sends compact power reduction indications. This inversion of the information flow direction reduces overhead by eliminating the need for base station queries and detailed responses.
Data Source
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AI summary
Systems, methods, apparatuses, and computer program products for enhanced operation for transmission power operation. A method may include receiving, from a network element, a configuration to transmit an indication of an uplink transmission adjustment to the network element. The method may also include determining an existence of overlapping of uplink transmissions to the network element. The method may further include transmitting, in response to the determination of the existence of overlapping of uplink transmissions, the indication to the network element. In addition, the method may include performing, in response to the determination of the existence of overlapping of uplink transmissions, at least one of the uplink transmission adjustment of the uplink transmission to the network element or an uplink scheduling adjustment.