公开(公告)号：US20160234744A1

公开(公告)日：2016-08-11

申请号：US15099086

申请日：2016-04-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaobo WU ,  Guangwei WANG ,  Guobao XI ,  Chao SUN ,  Xinyong Wang

IPC: H04W36/22 ,  H04W36/32 ,  H04W60/04 ,  H04W76/02 ,  H04W36/00

CPC classification number: H04W36/22 ,  H04L65/1016 ,  H04L65/1069 ,  H04L67/26 ,  H04W36/0022 ,  H04W36/32 ,  H04W60/04 ,  H04W76/18

Abstract: A communication method includes: sending, by an MME, a bearer setup request message to an eNodeB, where the bearer setup request message is used to instruct the eNodeB to set up a voice bearer for user equipment; and when the MME receives a bearer setup failure message sent by the eNodeB in response to the bearer setup request message, sending, by the MME, an indication message to the user equipment, where the indication message is used to indicate that a voice over VoIMS of the user equipment is unavailable. When setup of a voice bearer of a VoLTE call fails, the user equipment is notified that a VoLTE is unavailable, so that the user equipment can be prevented from continuing attempting to initiate the VoLTE call and exacerbating cell congestion.

Abstract translation: 通信方法包括：由MME向eNodeB发送承载建立请求消息，其中承载建立请求消息用于指示eNodeB为用户设备建立语音承载; 并且当MME接收到eNodeB响应承载建立请求消息发送的承载建立失败消息时，由MME向用户设备发送指示消息，其中指示消息用于指示VoIMS上的语音 的用户设备不可用。 当VoLTE呼叫的语音承载的建立失败时，向用户设备通知VoLTE不可用，从而可以防止用户设备继续尝试发起VoLTE呼叫并加剧小区拥塞。