Patent ID: 9538017
Date: 2017-01-03
CPC Classifications: H04L,H04M,H04W

Claim:
1. A charging method, comprising: receiving, by a charging system, first charging information sent by a traffic detection function (TDF) entity, wherein the first charging information carries a correlation identifier of a data flow of an application borne by the TDF entity; receiving, by the charging system, second charging information sent by a policy and charging enforcement function (PCEF) entity, wherein the second charging information carries a correlation identifier of a data flow borne by the PCEF entity; and correlating, by the charging system, the first charging information and the second charging information according to the correlation identifier of the data flow of the application borne by the TDF entity and the correlation identifier of the data flow borne by the PCEF entity, wherein the correlating comprises: determining duplicated charging information if the correlation identifier in the first charging information is the same as the correlation identifier in the second charging information, and performing charging for non-duplicated charging information by removing the determined duplicated charging information.