Patent ID: 8811174

Claim:
A data communication method for data management applicable to a User Equipment (UE) in a Cell_Forward Access Channel (Cell_FACH) state, the method comprising: receiving, by a Node B, data of one or more UEs in a Cell_FACH state from a Radio Network Controller (RNC), wherein the data of the one or more UEs is received through a frame which carries information that identifies the one or more UEs; receiving, by the Node B, a notification message sent from the RNC, the notification message being related to a UE of the one or more UEs in the Cell_FACH state and in response to cell reselection of the UE in the Cell_FACH state, the notification message carrying information that identifies the UE; if there is buffered data related to the UE identified by the information in the notification message, transferring, by the Node B, the buffered data related to the UE identified by the information in the notification message to a target cell for sending in the target cell if the target cell is controlled by the Node B; and deleting, by the Node B, the buffered data related to the UE identified by the information in the notification message if the target cell is not controlled by the Node B; wherein the notification message further carries action indication information that instructs the Node B to transfer the buffered data related to the UE identified by the information in the notification message to a target cell for sending in the target cell if the target cell is controlled by the Node B and to delete the buffered data related to the UE identified by the information in the notification message if the target cell is not controlled by the Node B.