Section: 4.2.1.6 Number of additional E-RABs failed to setup
Content: a) This measurement provides the number of additional E-RABs failed to setup. The measurement is split into subcounters per failure cause. b) CC. c) On transmission by the eNodeB/RN of an E-RAB SETUP RESPONSE message, each E-RAB failed to establish is added to the relevant measurement per cause, the possible causes are included in TS 36.413[ Evolved Universal Terrestrial Radio Access Network (E-UTRAN); S1 Application Protocol (S1AP) ]  [9]. The sum of all supported per cause measurements shall equal the total number of additional E-RABs failed to setup. In case only a subset of per cause measurements is supported, a sum subcounter will be provided first. d) Each measurement is an integer value. The number of measurements is equal to the number of causes plus a possible sum value identified by the .sum suffix. e) The measurement name has the form ERAB. EstabAddFailNbr.Cause where Cause identifies the cause resulting in the additional E-RAB setup failure. f) EUtranCellFDD EUtranCellTDD g) Valid for packet switched traffic. h) EPS. i) One usage of this measurement is to support the coverage ratio (CR) calculation for EE coverage area determination in [21].