Mechanism for 3
View Patent ↗A system to promote connectivity for inter-radio access technology (RAT) handover from a first radio access network (RAN) to a second radio access network (RAN) is provided. The system comprises a component configured such that for each access point name (APN) in communication with the first radio access network (RAN), the maximum bit rate (MBR) for each active non-guaranteed bit rate (non-GBR) bearer in the second radio access network (RAN) is determined based on each respective access point name's (APN's) used aggregate maximum bit rate (AMBR) and the number of active non-guaranteed bit rate(s) (non-GBR) bearers for the respective access point name (APN).
1. A non-transitory computer readable medium for quality of service (QoS) parameters mapping during a handover from a first radio access network (RAN) to a second RAN, the first RAN and the second RAN having communication with one or more access point names (APNs), storing instructions to cause a processor to perform operations comprising:
deriving, for the second RAN, an APN aggregated maximum bit rate (APN-AMBR) for each of the one or more APNs based on a maximum bit rate (MBR) of one or more packet data protocol (PDP) contexts of the first RAN, the first RAN including one of a universal terrestrial radio access network (UTRAN) or a global system for mobiles (GSM) enhanced data for GSM evolution radio access network (GERAN) and the second RAN including an evolved universal terrestrial radio access network (E-UTRAN).
2. The computer readable medium of claim 1 , the instructions further comprising providing a local user equipment (UE) aggregated maximum bit rate (UE-AMBR) until a subscribed UE-AMBR is available for the UE.
3. The computer readable medium of claim 2 , the instructions further comprising:
acquiring the subscribed UE-AMBR;
calculating a derived UE-AMBR; and
comparing the derived UE-AMBR to the local UE-AMBR.
4. The computer readable medium of claim 3 , wherein calculating a derived UE-AMBR comprises taking the minimum of the subscribed UE-AMBR and the sum of the derived APN-AMBRs of the one or more APNs associated with the UE.
5. The computer readable medium of claim 3 , the instructions further comprising notifying the derived UE-AMBR to the second RAN by initiating a subscribed quality of service (QoS) modification procedure.
6. The computer readable medium of claim 5 , wherein the notification of the derived UE-AMBR is a first notification and the subscribed QoS modification procedure further provides a second notification of a subscribed APN-AMBR, and wherein the first notification is provided to an enhanced node-B (eNB) of the second RAN and the second notification is provided to a serving gateway and packet data network gateway.
7. The computer readable medium of claim 5 , wherein the subscribed QoS modification procedure is initiated if the local UE-AMBR is different from the derived UE-AMBR.
8. The computer readable medium of claim 2 , wherein the local UE-AMBR is based on a sum of the one or more derived APN-AMBR.