Maximum Power Reduction Configuration for 29 dBm Uplink Transmission
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Solution Overview
Problem
There is no established Maximum Power Reduction (MPR) value for 29 dBm high-power User Equipments (UEs) in 5G New Radio (NR) systems, which is necessary for efficient uplink signal transmission.
Innovation Solution
Proposing an MPR value for 29 dBm high-power UE to determine and transmit the output power effectively, thereby addressing the lack of established MPR values for high-power UEs in NR systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If no MPR value is established for 29 dBm high-power UE, then the system maintains simplicity in power management, but uplink signal transmission efficiency deteriorates
Solution Approach 1:
The patent applies parameter changes by establishing specific MPR values (such as 3 dB, 6 dB, 9 dB) for 29 dBm high-power UEs based on different transmission conditions including bandwidth, subcarrier spacing, and cyclic prefix length. This resolves the contradiction by providing optimized power reduction parameters that improve uplink transmission efficiency while maintaining manageable system complexity through standardized parameter sets.
2Productivity
If MPR value is established for 29 dBm high-power UE, then uplink signal transmission efficiency improves, but system complexity increases
Solution Approach 1:
The patent manages system complexity by organizing MPR values into structured tables corresponding to different power classes and transmission configurations. The base station selects appropriate MPR values from predefined sets based on UE capability indications and transmission parameters, providing optimized uplink transmission without requiring complex real-time calculations or additional hardware components.
Data Source
AI summary
A disclosure of the present specification provides a user equipment (UE). The UE comprises: a transceiver unit for transmitting or receiving a signal; and a processor for controlling the transceiver unit, wherein: the transceiver unit may include two transmitters; the UE may have a maximum output of 29 dBm; the processor may determine transmission power on the basis of a configured maximum power reduction (MPR); the MPR may be configured on the basis of edge RB allocations, outer RB allocations, and inner RB allocations; the MPR may be configured on the basis of DFT-s-OFDM and CP-OFDM, the MPR may be configured on the basis of Pi/2 BPSK, QPSK, 16 QAM, 64 QAM, and 256 QAM; and the transceiver unit may transmit a signal to a base station by using the two transmitters on the basis of the determined transmission power.