Method and system for data and voice transmission over shared and dedicated channels
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United States of America Patent
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-
Jan 10, 2006
Grant Date -
Aug 15, 2002
app pub date -
Dec 22, 2000
filing date -
Dec 22, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
In one disclosed embodiment, data information is stored in a buffer in a transmitter. The data information is transmitted on a shared channel and control information for recovering the associated data information is transmitted on a dedicated channel. The shared and dedicated channels can be, for example, different portions of the frequency band. The control information can include a spreading factor used to spread the data at the transmitter. For example, the spreading factor can be the length of the Walsh function orthogonal coding used to spread the data. The control information is received over the dedicated channel before the associated data information is received over the shared channel. The control information is then used to recover the associated data information. For example, knowing the spreading factor from the control information, the correct Walsh function can be selected to de-spread, i.e. to Walsh de-cover, the data information.
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