Multiplex communications – Data flow congestion prevention or control – Control of data admission to the network
Reexamination Certificate
2006-09-19
2006-09-19
To, Doris H. (Department: 2616)
Multiplex communications
Data flow congestion prevention or control
Control of data admission to the network
C370S352000, C370S516000
Reexamination Certificate
active
07110357
ABSTRACT:
A method and apparatus for reducing voice latency in a voice-over-data wireless communication system. In a transmitter, data frames are created from audio information by a vocoder and stored in a queue. Prior to storage, some of the data frames are eliminated, or dropped, and are not stored in the queue. In a receiver, data frames are generated from received signals and stored in a queue. Prior to storage in the receiver queue, some of the data frames are dropped. Data frames are dropped either at a single fixed rate, a dual fixed rate, or a variable rate, generally depending on a communication channel latency. By dropping data frames at the transmitter, the receiver, or both, voice latency due to data frame retransmissions is reduced.
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Brown James M.
Tomcik James
von Damm Matthew B.
Yao Yu-Dong
Brown Charles D.
Chen Alex C.
Hyun Soon D.
QUALCOMM Incorporated
To Doris H.
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