name: A-MPR
full_form: Additional Maximum Power Reduction
context: For UE with two transmit antenna connectors in closed-loop spatial multiplexing scheme, the A-MPR values specified in subclause 6.2.4 shall apply to the maximum output power specified in Table 6.2.2B-1. The requirements shall be met with the UL-MIMO configurations specified in Table 6.2.2B-2. For UE supporting UL-MIMO, the maximum output power is measured as the sum of the maximum output power at each UE antenna connector. Unless stated otherwise, an A-MPR of 0 dB shall be used. For the UE maximum output power modified by A-MPR, the power limits specified in subclause 6.2.5B apply. If UE is configured for transmission on single-antenna port, the requirements in subclause 6.2.4 apply.
description: The Additional Maximum Power Reduction (A-MPR) is a parameter used to adjust the maximum output power of User Equipment (UE) with two transmit antenna connectors in closed-loop spatial multiplexing schemes. It ensures that the UE's transmission power complies with specified limits, taking into account the combined power from multiple antennas. A-MPR values are defined in 3GPP specifications and are crucial for maintaining regulatory compliance and preventing interference.
explanation: A-MPR is classified as a Parameter because it represents a configurable value that affects the operation of User Equipment within specific transmission schemes, directly influencing the maximum output power and ensuring adherence to 3GPP's defined standards.
section_title: 6.2.4B UE maximum output power with additional requirements for UL-MIMO
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