QCI

quality of service class identifier

A parameter of the QoS profile of an EPS bearer. It is a scalar quantity that refers to access-device-specific parameters that control bearer-level packet forwarding treatment, for example, scheduling weights, admission thresholds, queue management thresholds, and link layer protocol configuration. See 3GPP TS23.401 Section 4.7.3 and TS23.203 Annex J.*