公开(公告)号：US08688124B2

公开(公告)日：2014-04-01

申请号：US13669253

申请日：2012-11-05

Applicant: General Electric Company

Inventor： Richard Louis Zinser ,  Michael James Hartman ,  John Erik Hershey

IPC: H04W36/00 ,  H04W72/00 ,  H04W4/00 ,  H04B7/00

CPC classification number: H04W36/30

Abstract: Provided are methods and systems of managing a handoff in a multimedia communication network. Embodiments include estimating the voice quality of a communication route in the network. The voice quality may be estimated by using a total voice quality metric involving subtracting various impairments to the voice signal. Impairments may result from the type of vocoder in a communication route, the error or loss associated with RF links and network links, and delays in the communication route. After subtracting the impairments to obtain the total voice quality metric for the communication route, the total voice quality metric may be compared with a threshold and/or other total voice quality metrics of other communication routes to determine whether and when a handoff should be made.

Abstract translation: 提供了管理多媒体通信网络中的切换的方法和系统。 实施例包括估计网络中的通信路由的语音质量。 可以通过使用涉及减去语音信号的各种损伤的总语音质量度量来估计语音质量。 通信路由中的声码器的类型，与RF链路和网络链路相关联的错误或丢失以及通信路由中的延迟可能导致损害。 在减去所述损伤以获得通信路由的总语音质量度量之后，可以将总语音质量度量与其他通信路由的阈值和/或其他总语音质量度量进行比较，以确定是否以及何时应该进行切换。