Invention Grant
- Patent Title: Determining latency associated with push-to-talk communications
- Patent Title (中): 确定与即按即说通信相关的延迟
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Application No.: US11474611Application Date: 2006-06-26
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Publication No.: US07650160B2Publication Date: 2010-01-19
- Inventor: Mahmoud Ragaei Sherif , Ahmed A. Tarraf
- Applicant: Mahmoud Ragaei Sherif , Ahmed A. Tarraf
- Applicant Address: US NJ Murray Hill
- Assignee: Alcatel-Lucent USA Inc.
- Current Assignee: Alcatel-Lucent USA Inc.
- Current Assignee Address: US NJ Murray Hill
- Agency: Carlson, Gaskey & Olds PC
- Main IPC: H04B7/00
- IPC: H04B7/00

Abstract:
A method of determining at least an estimate of media latency for push-to-talk communications includes determining a first time associated with transmitting a first packet from a push-to-talk transceiver device. In a disclosed example, the same device receives a second packet that corresponds to the first packet and includes an indication of the first time, a second time associated with receipt of the first packet by another device such as a push-to-talk server and a third time associated with transmission of the second packet to the push-to-talk transceiver device. That same device determines a fourth time associated with receipt of the second packet. In a disclosed example, the push-to-talk transceiver device uses a relationship between the first time, second time, third time and fourth time for determining at least an estimate of media latency associated with the push-to-talk communication corresponding to the first and second packets. A plurality of latency test procedures are disclosed.
Public/Granted literature
- US20070298823A1 Determining latency associated with push-to-talk communications Public/Granted day:2007-12-27
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