Universal mobile telecommunications system (UMTS) quality of service (QoS) supporting variable QoS negotiation
MC. Chuah. US Patent 2010
A UMTS (Universal Mobile Telecommunications System) core network supports the negotiation of variable quality of service (QoS). A QoS information element (IE) is defined that supports downgradeable QoS requirements by allowing multiple traffic classes to be specified in a priority order. Similarly, a QoS information element (IE) is defined that supports upgradeable QoS requirements.