Free Practice Questions for Huawei H35-480_V3.0 Exam

A. Mixed slot is a slot configuration in which at least one downlink/uplink symbol is present, while other symbols can be flexibly configured for downlink or uplink transmission. This allows for a more efficient use of resources and better support for different types of services. B. Flexible-slot is a slot configuration in which all symbols are flexibly configured for downlink or uplink transmission. This allows for a more efficient use of resources and better support for different types of services. C. Downlink-only slot is a slot configuration in which all symbols are dedicated for downlink transmission, This configuration is mainly used for downlink-centric services such as video streaming or software downloads. D. Uplink-only slot is a slot configuration in which all symbols are dedicated for uplink transmission, this configuration is mainly used for uplink-centric services such as voice calls or video conferencing.

"The Mobile Country Code (MCC) and Mobile Network Code (MNC) information added on the gNodeB must be consistent with the PLMN information on the core network."

A. NR downlink slots are used to transmit downlink data and control information, such as channel state information (CSI) and downlink control information (DCI). B. Downlink self-contained slots are also called as "Downlink Shared Channels (DL-SCH) slots", they can be used to transmit downlink data, but also can be used to transmit uplink control information (UCI) and sounding reference signals (SRS) in the downlink direction.

D. The symbols in a slot can be classified as downlink, uplink, or flexible, meaning that the symbols can be used to transmit data in either direction, or to transmit control information.

It's worth noting that the NR slot structure is designed to be flexible and efficient, it allows for a variable slot duration and a variable number of symbols, depending on the subcarrier spacing and the number of resource blocks used. This flexibility is intended to support a wide range of services and traffic types.

Control subsystem: It is responsible for managing and controlling the overall operation of the BBU, it provides functions such as system initialization, software management, and alarm management.

Transmission subsystem: It is responsible for the transmission of data between the baseband subsystem and the RF subsystem, it includes functions such as data encoding, modulation, and multiplexing.

Baseband subsystem: It performs the baseband processing for the BBU, it includes functions such as demodulation, decoding, and demultiplexing.

https://info.support.huawei.com/info-finder/encyclopedia/en/MIMO.html

A. DM-RS (Demodulation Reference Signals) are transmitted in the frequency domain, they are used to demodulate the downlink data and control channels, and they can be used for cell measurement such as cell identification, cell reselection, and handover. B. CSI-RS (Channel State Information Reference Signals) are also transmitted in the frequency domain, they are used to provide channel state information for downlink data and control channels, and they can be used for cell measurement such as link adaptation, beamforming and interference management.

DM-RS stands for Demodulation Reference Signal and is used for channel estimation in the frequency domain. CSI-RS stands for Channel State Information Reference Signal and is used for channel estimation in the time-frequency domain. PT-RS and SSB are not channels (signals) that can be used for cell measurement in NR.

A 5G UE measures the signal-to-interference-and-noise ratio (SINR) at the cell-specific reference signal (CSI-RS) to report channel quality information such as the CQI, RI, and PMI to a gNodeB. The CSI-RS SINR is used to determine the modulation and coding scheme (MCS) index, which is then used by the gNodeB to select the modulation and code rate for the transport block.

CQI (channel quality indicator), RI (rank indicator), and PMI (precoding matrix indicator) are all parameters that are used to indicate the channel quality of the wireless link between a UE and a gNodeB in a 5G network. These parameters are reported by the UE to the gNodeB and are used to determine the optimal modulation and coding schemes for the downlink transmissions.

To report these parameters, the UE needs to measure the channel quality, the UE measures the SINR (Signal-to-Interference-plus-Noise Ratio) of specific signals to report the channel quality information.

"The distance between the CPE and the gNodeB should be greater than 10m to ensure that the test results are accurate and reliable."

-"The following frequency locking modes are not supported when the GENEX Probe is used to perform a CPE test: PCI, Cell frequency" in Huawei official website.