UE Transmit Power Control for 29 dBm FR2 Support
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Solution Overview
Problem
Conventional technologies do not support 29 dBm high-power terminals in a single carrier of Frequency Range 2 (FR2).
Innovation Solution
A User Equipment (UE) is provided with at least one transceiver, processor, and memory, capable of determining transmission power and transmitting uplink signals or PRACH signals based on the determined power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If conventional single carrier technology is used in FR2, then system complexity is reduced, but high-power terminal support (29 dBm) is not achieved
Solution Approach 1:
The patent divides the uplink transmission into multiple carriers (carrier aggregation) instead of using a single carrier. This segmentation allows the system to achieve higher total transmission power (29 dBm) by combining power across multiple component carriers, while each individual carrier can operate at lower power levels that conventional technology can handle.
Solution Approach 2:
The patent transitions from a single-dimensional (single carrier) power transmission approach to a multi-dimensional approach by introducing frequency diversity through carrier aggregation. This allows power to be distributed across multiple frequency resources, enabling high-power terminal support in FR2 where single-carrier approaches fail.
2Power
If multiple carriers are aggregated to achieve 29 dBm power, then terminal power capability is improved, but system complexity increases
Solution Approach 1:
The patent creates a universal framework for multi-carrier aggregation that can handle multiple component carriers with different bandwidths and power levels. The base station and terminal are designed to universally manage carrier aggregation configurations, allowing flexible combination of carriers to achieve 29 dBm while reusing existing single-carrier processing functions.
Solution Approach 2:
The patent implements dynamic carrier aggregation where the number of aggregated carriers, their bandwidths, and power allocations can be dynamically adjusted based on channel conditions and service requirements. This dynamic approach allows the system to optimize between power output and complexity by activating only the necessary number of carriers for each transmission scenario.
Data Source
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AI summary
One disclosure of the present disclosure provides a UE that performs communication. The UE comprises: at least one processor; and at least one memory that stores instructions and is operatively and electrically connectable to the at least one processor. An operation performed on the basis of execution of the instructions by the at least one processor includes the steps of: determining transmit power; and transmitting an uplink signal on the basis of the transmit power.