PTRS Power Boosting via RRC-Configured EPRE Ratios
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Solution Overview
Problem
Current 5G communication systems face challenges in effectively boosting the power of phase tracking reference signals (PTRS) in downlink transmissions, particularly in scenarios involving multiple DMRS groups.
Innovation Solution
The introduction of a radio resource control (RRC) parameter to configure the PDSCH to PTRS energy per resource element (EPRE) ratio per PTRS port, allowing for power boosting across DMRS groups by sharing power resources and borrowing power from muted resource elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power boosting is applied to PTRS in downlink transmissions, then signal quality and transmission reliability are improved, but power resources are consumed and resource element allocation becomes more complex
Solution Approach 1:
The patent applies local quality by configuring different PDSCH to PTRS EPRE ratios for different PTRS ports through RRC parameters. Each PTRS port can have its own power boosting configuration, allowing power resources to be selectively allocated to specific ports based on channel conditions and service requirements, rather than uniformly boosting all PTRS signals.
Solution Approach 2:
The patent introduces dynamic power boosting through RRC-configurable parameters that allow the network to adjust PDSCH to PTRS EPRE ratios adaptively. The system can dynamically switch between different power boosting levels (0dB, 3dB, 6dB) based on channel quality indicators and transmission conditions, optimizing the balance between reliability improvement and power consumption.
2Productivity
If PDSCH to PTRS EPRE ratio is configured per PTRS port, then power boosting efficiency is improved, but device complexity and configuration overhead increase
Solution Approach 1:
The patent implements partial action by allowing power boosting configuration for only those PTRS ports that require it. The RRC parameter structure enables selective configuration where some PTRS ports can have enhanced EPRE ratios while others use default values, avoiding the need to configure all ports uniformly and reducing overall system complexity.
Solution Approach 2:
The patent uses parameter changes by introducing RRC-configurable EPRE ratio parameters that can take discrete values (0dB, 3dB, 6dB). This discrete parameter approach simplifies configuration compared to continuous power control, reducing signaling overhead while maintaining flexible power boosting capability across different PTRS ports.
3Productivity
If multiple DMRS groups share power resources, then resource utilization is optimized, but power allocation control becomes more difficult
Solution Approach 1:
The patent applies segmentation by dividing the power allocation control into separate RRC parameters for each PTRS port associated with DMRS groups. This segmentation allows the network to independently control power boosting for each port while still enabling shared power resources across DMRS groups, maintaining both resource efficiency and control simplicity.
Data Source
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AI summary
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. Disclosed is a method of boosting power of a phase tracking reference signal, PTRS, in a telecommunication system, wherein PTRS is used in an uplink transmission and two PTRS ports are configured and whereby the power boosting is defined based on relationship of the power to a number of PUSCH layers.