MOBILE COMMUNICATION METHOD, POLICY AND CHARGE RULES SERVER DEVICE, AND MOBILE MANAGEMENT NODE

摘要

When congestion is detected in an S-GW, communications are allowed to continue as many as possible. A mobile communication method according to the present invention includes: notifying, by the S-GW, a PDF in a PCRF of detection of congestion when the congest is detected; acquiring, by the PDF in the PCRF, charging system information regarding UEs using an S1 bearer and an S5 bearer set in the S-GW from an HSS; acquiring, by the PDF in the PCRF, communication service class information in a flow unit in the S1 bearer and the S5 bearer from the P-GW according to the notification; and performing, by the PDF in the PCRF, bandwidth adjustment on specific flows of the S1 bearer and the S5 bearer based on the charging system information and the communication service class information in the flow unit.