Zte Corporation

Xi'an Zhongxing New Software Co., Ltd.

Minya Ye

Jinguo Zhu

Fei Lu

Zaifeng Zong

Jing Wen Wang

Shuang Liang

Lin Liu

Yang Yang

Jing Wang

Min Fang

Kui Ren

Xiliang Liu

Fangting Zheng

Jiannan Cai

Zalfeng Zong

Weidong Liu

Yanjing Ding

Xiaobo Xu

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.

Method and device for establishing a bearer

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.

Method for avoiding resource being released mistakenly during tracking area update or handover process

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.

Method for processing bearer in serving gateway

A method for releasing buffered data of a Serving Gateway is disclosed&#x25a1; 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.

Method for releasing buffered data of a serving gateway

The present invention provides an intra-system handoff method, comprising the following steps: S, when deciding a handoff of UE to a target base station, a source base station issues a handoff request to the target base station; S, 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; S, after the completion of the handoff, the target base station issues an update request to an MME; and S, 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.

Intra-system handoff method

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Shenzhen, China

Minya Ye