Abstract: The disclosure discloses a method and device for establishing a bearer. The method includes: determining that a bearer is to be newly established during a switching process of a terminal; and sending a switching request message to a target base station to which the terminal is to be switched, moreover the switching request message carries the bearer to be newly established, and the switching request message is used for enabling the target base station to establish all bearers designated during the switching request message for the terminal.

Abstract: The disclosure discloses a method and device for establishing a bearer. The method includes: determining that a bearer is to be newly established during a switching process of a terminal; and sending a switching request message to a target base station to which the terminal is to be switched, moreover the switching request message carries the bearer to be newly established, and the switching request message is used for enabling the target base station to establish all bearers designated during the switching request message for the terminal.

Abstract: A method for avoiding resource being released mistakenly during tracking area update or handover process comprising: determining, by a target Mobility Management Entity MME, whether to use an old System Architecture Evolution Serving GW or to reselect a new Serving GW; if the target MME determines to select a new serving GW, notifying the original MME, the original MME sending a request for deleting bearer to the old Serving GW. The technical scheme of the present invention can avoid that the original MME will still send a request for deleting subscriber context to the old Serving GW when the target MME still uses the old Serving GW rather than selects a new one during tracking area update or handover process of the subscriber, which results in the appearance of a problem that the resource related to the subscriber in the old Serving GW is released mistakenly.

Abstract: The present invention provides bearer processing methods, in one bearer processing method, the serving gateway receives a bearer processing message from a mobility management unit, wherein the bearer processing message carries a message source mark for identifying a sending entity of the bearer processing message; the serving gateway acquires the message source mark in the bearer processing message, and judges the sending entity of the bearer processing message according to the message source mark, and performs the bearer processing according to the result of the judgment. In accordance with the present invention, it is possible for the serving gateway to distinguish the sending entity of a message, so as to perform the subsequent related bearer processing.

Abstract: A method for releasing buffered data of a Serving Gateway is disclosed? the Serving Gateway (Serving GW) buffers downlink data sent to a user and sends a data notification message to a Mobility Management Entity (MME); after receiving the data notification message, the MME initiates a paging to the user and sets a paging timer, if the paging timer expires and no paging response of the user is received, the MME sends a notification message to the Serving GW to inform the Serving GW that there is no paging response from the user; and after receiving the notification message, the Serving GW releases the buffered downlink data. With this method, the Serving GW can release buffered data in time without causing wrong release of the buffered data, so the system efficiency can be improved.

Abstract: The present invention provides an intra-system handoff method, comprising the following steps: S302, when deciding a handoff of UE to a target base station, a source base station issues a handoff request to the target base station; S304, in response to the handoff request from the source base station, the target base station informs the source base station to conduct handoff for the UE; S306, after the completion of the handoff, the target base station issues an update request to an MME; and S308, in response to the update request from the target base station, the MME conducts Serving GW selection, and further fulfils the intra-system handoff. By the present invention, the target eNodeB need not determine whether access to the Serving GW is available, and accordingly the target eNodeB can avoid from configuring Serving GW.

Abstract: The present invention provides a message sending method and a serving GPRS support node. The method includes: when the SGSN, to which user equipment is connected, switches from a first SGSN to a second SGSN, the first SGSN sending to the second SGSN a message carrying context information of the user equipment, wherein the context information includes the gateway type of packet data network to which the user equipment is connected. The present invention achieves the effects that the new SGSN can acquire the gateway type of the packet data network PDN and correctly select the type of the interface in use according to the gateway type.

Abstract: The present invention provides a method for processing abnormalities between non-adjacent nodes. which is applied to network element nodes supporting a GPRS Tunneling Protocol (GTP). The GTP node sends a network element-level node abnormality message to other adjacent GTP nodes once the abnormality of an adjacent GTP node is detected. The message comprises information about the abnormal GTP node. The method of the present invention enables the non-adjacent GTP nodes to obtain each other's abnormality therebetween and perform relative processing by introducing the network element-level node abnormality message, thus solves the problem when the GTP is used in the 3GPP system that the resources cannot be recycled in time because of each other's unknown recovery between the non-adjacent nodes, or the problem of a message storm that may caused by the user-level message notification through the intermediate node.

Abstract: A method for processing bearer reestablishment failure is disclosed in the present invention for preventing a SGW from doing error processing due to the bearer reestablishment failure in a SAE network. The method comprises the following steps: a mobility management entity (MME) sending a notification message to a service gateway (SGW) after reestablishment of a bearer, the notification message carrying effectiveness parameters indicating the effectiveness state of the bearer, and the SGW storing the effectiveness parameters; the SGW not delivering data packets if the effectiveness state of the bearer is failure when the SGW is to deliver data packets.

Abstract: The present invention provides bearer processing methods, in one bearer processing method, the serving gateway receives a bearer processing message from a mobility management unit, wherein the bearer processing message carries a message source mark for identifying a sending entity of the bearer processing message; the serving gateway acquires the message source mark in the bearer processing message, and judges the sending entity of the bearer processing message according to the message source mark, and performs the bearer processing according to the result of the judgment. In accordance with the present invention, it is possible for the serving gateway to distinguish the sending entity of a message, so as to perform the subsequent related bearer processing.

Abstract: A method and device for deploying evolved nodes are provided in the present invention, and the method comprises: a MME acquires a connection establishment request from an e Node B, wherein the connection establishment request carries a global identifier of the e Node B; the MME acquires the global identifier, and searches for corresponding e Node B information according to the global identifier, and if the corresponding e Node B information cannot be found, the MME deploys the e Node B. With the present invention, the MME in a mobile communication packet domain evolved system can directly deploy e Node B, which increases the number of e Node B in the mobile communication packet domain evolved system, and satisfies the demand of the mobile communication packet domain evolved system on e Node B.

Abstract: The present invention provides a method and a device for deploying tracking areas. The method comprises: the mobile management entity MME acquires the connection establishment request from the Evolved Node B (e Node B), wherein, the connection establishment request carries one or more tracking area identities TAIs corresponding to the one or more tracking areas belonging to the e Node B; the MME acquires the one or more TAIs from the connection establishment request and locally searches the one or more TAIs; if the one or more TAIs are not found, the MME deploys the one or more tracking areas corresponding to the one or more TAIs. By the present invention, the MME of the mobile communication packet domain evolution system directly deploys the tracking areas, which increases the number of the tracking areas of the mobile communication packet domain evolution system, and satisfies the demand to the tracking areas of the mobile communication packet domain evolution system.

Abstract: A method for releasing buffered data of a Serving Gateway is disclosed? the Serving Gateway (Serving GW) buffers downlink data sent to a user and sends a data notification message to a Mobility Management Entity (MME); after receiving the data notification message, the MME initiates a paging to the user and sets a paging timer, if the paging timer expires and no paging response of the user is received, the MME sends a notification message to the Serving GW to inform the Serving GW that there is no paging response from the user; and after receiving the notification message, the Serving GW releases the buffered downlink data. With this method, the Serving GW can release buffered data in time without causing wrong release of the buffered data, so the system efficiency can be improved.

Abstract: The present invention discloses a method, system, and apparatus for controlling Circuit Switched, CS, fallback. The method comprises: a network element which got calling information of the present call in CS domain notifying a Mobility Management Entity, MME, of the calling information; the MME notifying the called User Equipment, UE, of the calling information; the called UE determining whether the call performs CS fallback according to whether the user answers the call or according to pre-configured CS fallback policy. By applying the present invention, the CS fallback of ongoing call can be controlled by the called user which is in EPS network, therefore the usability of the user's EPS network service is ensured, the satisfaction degree of the user is improved, and the useless occupancy of the GSM/UMTS network resources is reduced.

Abstract: A method for avoiding resource being released mistakenly during tracking area update or handover process comprising: determining, by a target Mobility Management Entity MME, whether to use an old System Architecture Evolution Serving GW or to reselect a new Serving GW; if the target MME determines to select a new serving GW, notifying the original MME, the original MME sending a request for deleting bearer to the old Serving GW. The technical scheme of the present invention can avoid that the original MME will still send a request for deleting subscriber context to the old Serving GW when the target MME still uses the old Serving GW rather than selects a new one during tracking area update or handover process of the subscriber, which results in the appearance of a problem that the resource related to the subscriber in the old Serving GW is released mistakenly.

Abstract: The present invention provides an intra-system handoff method, comprising the following steps: S302, when deciding a handoff of UE to a target base station, a source base station issues a handoff request to the target base station; S304, in response to the handoff request from the source base station, the target base station informs the source base station to conduct handoff for the UE; S306, after the completion of the handoff, the target base station issues an update request to an MME; and S308, in response to the update request from the target base station, the MME conducts Serving GW selection, and further fulfils the intra-system handoff. By the present invention, the target eNodeB need not determine whether access to the Serving GW is available, and accordingly the target eNodeB can avoid from configuring Serving GW.