Energy KPIs Family Definitions Sample Clauses

Energy KPIs Family Definitions. Energy Efficiency a. Efficient data transmission in a loaded case. b. Low energy consumption when there is no data. Efficient data transmission in a loaded case is demonstrated by the average spectral efficiency. Low energy consumption when there is no data can be estimated by the sleep ratio. The sleep ratio is the fraction of unoccupied time resources (for the network) or sleeping time (for the device) in a period of time corresponding to the cycle of the control signaling (for the network) or the cycle of discontinuous reception (for the device) when no user data transfer takes place. Furthermore, the sleep duration, i.e., the continuous period of time with no transmission (for network and device) and reception (for the device), should be sufficiently long. 6G-SANDOX adopts the definition of Energy Efficiency in Network Function Virtualisation (NFV) from ETSI [14] and the metric is defined in 3GPP TS 22.261 [13]. Energy efficiency in NFV is calculated based on data transfer (KPIEE-transfer). The document specifies two variants of KPIEE-transfer (KPIEE-bit_transfer and KPIEE-packet_transfer) which are measures of the data volume transferred to and from the NFVI per unit of energy consumed by the Network Function Virtualisation Infrastructure (NFVI) as shown schematically below in Figure 1. Figure 1. Energy efficiency in NFV based on data transfer [8] The determination of the effectiveness of such NFVI in effecting a reduction of energy consumption depends upon knowledge of the energy consumption of the NFVI and data volume transmitted and received by the Network Termination Equipment (NTE) with the NFVI. KPIEE-bit_transfer is based on the data volume defined by the arithmetic sum of Layer 2 payload content of the number of successfully transmitted and received bits. KPIEE-packet_transfer is based on the data volume defined by the arithmetic sum of successfully transmitted and received packets. KPIEE-bit_transfer and KPIEE-packet_transfer do not take account of: • The energy consumption involved in the transport of the data to and from the NFVI beyond the physical interface. • The energy consumption of any processing of the data (e.g., routing, etc.) beyond the physical interface.
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