In NSA networking, which of the following factors affect the downlink peak rate of a CPE?

In NSA networking, the downlink peak rate is influenced by several factors that determine the overall signal quality and the amount of data that can be transmitted.
A. Downlink transmit power of the NR base station: Higher power improves the Signal-to-Interference-plus-Noise Ratio (SINR) at the CPE, enabling the use of higher-order modulation and coding schemes (MCS), which directly increases the data rate.
C. Downlink BLER of 3% or above: A high Block Error Rate (BLER) indicates poor link quality. The link adaptation mechanism will respond by selecting a more robust, lower-order MCS to reduce errors, which in turn lowers the achievable data rate.
D. CPE location: The CPE's location determines the path loss to the base station. A CPE closer to the cell center experiences lower path loss and higher SINR, leading to a higher data rate, while a cell-edge CPE experiences the opposite.

B. Uplink transmit power of the CPE: This primarily affects the uplink data rate and the reliability of uplink control channels (e.g., HARQ feedback, CQI reports). While a very poor uplink can indirectly impact downlink performance, it is not a primary factor determining the downlink peak rate.

Huawei 5G RAN Performance Monitoring Guide. This documentation identifies key performance indicators (KPIs) for user throughput, such as PDSCH MCS, SINR, and BLER. It explains that SINR (affected by Tx power and location) and BLER are directly correlated with the achieved data rate.

"5G NR: The Next Generation Wireless Access Technology" by E. Dahlman, S. Parkvall, J. Skold, Section 10.4 "Link Adaptation". This academic text explains that link adaptation adjusts the MCS based on channel quality (e.g., SINR) to meet a target BLER, directly linking these factors to throughput.