Section: Update Bearer Response
Content: An Update Bearer Response shall be sent from a MME/SGSN to a SGW and forwarded to the PGW, and from TWAN/ePDG to the PGW as a response to an Update Bearer Request message. Table -1 specifies the presence requirements and the conditions of the IEs in the message. Cause IE indicates if an EPS bearer has been modified in the MME/SGSN/TWAN/ePDG or not. The EPS Bearer has not been modified in the MME/SGSN/TWAN/ePDG if the Cause IE value differs from "Request accepted" or "Request accepted partially". Possible Cause values are specified in Table 8.4-1. Message specific cause values are: "Request accepted". "Request accepted partially" "Context not found" "Semantic error in the TFT operation". "Syntactic error in the TFT operation". "Semantic errors in packet filter(s)". "Syntactic errors in packet filter(s)". - "Denied in RAT". - "UE refuses". "Unable to page UE". "UE not responding". "Unable to page UE due to Suspension". "Temporarily rejected due to handover/TAU/RAU procedure in progress". "MME/SGSN refuses due to VPLMN Policy". "UE is temporarily not reachable due to power saving" Table -1: Information Elements in an Update Bearer Response Table -2: Bearer Context within Update Bearer Response Table 7.2.16-3: Overload Control Information within Update Bearer Response