3 Definitions of terms, symbols and abbreviations

28.3103GPPEnergy efficiency of 5GManagement and orchestrationRelease 18TS

3.1 Terms

For the purposes of the present document, the terms given in 3GPP TR 21.905 [1] and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in 3GPP TR 21.905 [1].

Candidate cell: cell which can provide coverage when the original cell goes into energySaving state.

energySaving state: state in which some functions of a cell or network function are powered-down.

Note 1: In energySaving state, the cell or network function is still controllable.

Note 2: This is the state when the traffic goes below a certain threshold.

notEnergySaving state: state when no energy saving in progress.

Note 3: This is the state when the traffic goes above a certain threshold.

ES activation: procedure to power down a cell or network function for energy saving purposes.

Note 4: As a result, the subject cell or network function goes into energySaving state.

ES deactivation: procedure to power up a cell or network function.

Note 5: As a result, the subject cell or network function goes into notEnergySaving state.

ES Probing procedure: procedure executed by an ES probing capable cell triggered by Cell Activation procedure or ES deactivation procedure.

NOTE 6: The ES probing procedure [17] assists the decision whether the cell will transfer to notEnergySaving state or remain in energySaving state.

Note 7: During the ES probing procedure the ES probing capable cell is not carrying traffic, while it can perform measurements and be visible to the UEs in its coverage.

compensatingForEnergySaving state: in an off-peak traffic situation, a cell is remaining powered on, e.g. taking over the coverage areas of neighbor cell in energySaving state..

ES compensation: the procedure to change a cell’s configuration to remain powered on for compensating energy saving activation on other cells, e.g. by increasing a cell’s coverage area. As a result, the cell is in compensatingForEnergySaving state.

3.2 Symbols

Void.

3.3 Abbreviations

For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 [1] and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in 3GPP TR 21.905 [1].

DV Data Volume

EC Energy Consumption

EE Energy Efficiency

PEE Power, Energy and Environmental

PNF Physical Network Function

VNF Virtualized Network Function