公开(公告)号：US10075880B2

公开(公告)日：2018-09-11

申请号：US14968465

申请日：2015-12-14

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Hongzhuo Zhang ,  Yong Qiu ,  Ying Huang ,  Qiang Wang

IPC: H04W36/00 ,  H04W36/02 ,  H04W92/12 ,  H04W92/20

CPC classification number: H04W36/0005 ,  H04W36/02 ,  H04W92/12 ,  H04W92/20

Abstract: A method and an apparatus for non-access stratum (NAS) message processing during handover in an evolved network are provided. The method includes the following steps. An evolved packet core (EPC) receives a message which indicates that a UE is being handed over sent by a source evolved NodeB (S-eNB), and stops sending an NAS message to the UE temporarily. The EPC receives a message which indicates that the UE returns to an S-eNB service area sent by the S-eNB. The EPC sends the NAS message to the UE through the S-eNB, if needed. With the method and the apparatus, the EPC can acquire a location of the UE in time in the case of a handover failure of the UE, a time limit of a retransmission timer is set precisely, and a specific implementation for forwarding an NAS message through an X2 interface is provided.

公开(公告)号：US09730119B2

公开(公告)日：2017-08-08

申请号：US14551396

申请日：2014-11-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yong Qiu

IPC: H04L12/28 ,  H04W36/00 ,  H04W36/02 ,  H04W92/04 ,  H04J1/16 ,  H04W92/20

CPC classification number: H04W36/0055 ,  H04W36/02 ,  H04W92/045 ,  H04W92/20

Abstract: A synchronization method, a communication handover method, a radio network, and a RAN node are disclosed. The interface information synchronization method includes determining whether a condition for initiating interface information update is fulfilled. Information about the S1 interface between the RAN node and the core network node, is sent. In addition, or alternatively, information about the X2 interface between the RAN node and the neighboring RAN node is sent to the neighboring RAN node if the condition for initiating interface information update fulfilled.

公开(公告)号：US08842638B2

公开(公告)日：2014-09-23

申请号：US13931225

申请日：2013-06-28

Applicant: Huawei Technologies Co., Ltd

Inventor： Hongzhuo Zhang ,  Yong Qiu

IPC: H04W4/00 ,  H04W36/00 ,  H04W8/20 ,  H04W92/20 ,  H04W36/08 ,  H04W92/04

CPC classification number: H04W36/0011 ,  H04W8/20 ,  H04W36/0055 ,  H04W36/08 ,  H04W92/045 ,  H04W92/20

Abstract: In a method for establishing S1 signaling connections in an evolved network during a handover of a UE moves from a first evolved NodeB to a second eNodeB, the first eNodeB sends to the second eNodeB information about a first S1 signaling connection parameter, which is associated with a first S1 signaling connection between the first eNodeB and a core network while the UE is in the first eNodeB. The second eNodeB allocates a second S1 signaling connection parameter associated with a second S1 signaling connection between the second eNodeB and the core network when the UE moves from the first eNodeB to the second eNodeB, and transmits the received first S1 signaling parameter and the allocated second S1 signaling parameter to the core network for establishing the second S1 signaling connection.

Abstract translation: 在UE的切换期间在演进网络中建立S1信令连接的方法从第一演进节点B移动到第二eNodeB时，第一eNodeB向第二eNodeB发送关于第一S1信令连接参数的信息，该第一S1信令连接参数与 当UE在第一eNodeB中时，第一eNodeB和核心网之间的第一S1信令连接。 当UE从第一eNodeB移动到第二eNodeB时，第二eNodeB分配与第二eNodeB和核心网之间的第二S1信令连接相关联的第二S1信令连接参数，并且发送接收的第一S1信令参数和所分配的第二 S1信令参数到核心网建立第二S1信令连接。