Invention Grant
- Patent Title: Handoff metric for multiple transmission technologies
- Patent Title (中): 多种传输技术的切换度量
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Application No.: US13669253Application Date: 2012-11-05
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Publication No.: US08688124B2Publication Date: 2014-04-01
- Inventor: Richard Louis Zinser , Michael James Hartman , John Erik Hershey
- Applicant: General Electric Company
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: Fletcher Yoder, P.C.
- Agent Jean K. Testa
- Main IPC: H04W36/00
- IPC: H04W36/00 ; H04W72/00 ; H04W4/00 ; H04B7/00

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.
Public/Granted literature
- US20130065592A1 HANDOFF METRIC FOR MULTIPLE TRANSMISSION TECHNOLOGIES Public/Granted day:2013-03-14
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