Multiplex communications – Communication over free space – Combining or distributing information via code word channels...
Reexamination Certificate
2011-07-05
2011-07-05
Eng, George (Department: 2617)
Multiplex communications
Communication over free space
Combining or distributing information via code word channels...
C370S335000, C370S231000, C370S235000, C455S450000
Reexamination Certificate
active
07974253
ABSTRACT:
A base station selects and assigns uplink segments to specific wireless terminals. The base station estimates potential system interference levels, selects, assigns, and transmits a maximum uplink rate indicator value to a wireless terminal indicating the maximum uplink data rate that the wireless terminal is permitted to use. The wireless terminal receives the maximum data rate indicator and selects an uplink data rate to use which is less than or equal to the maximum data rate indicator level. The selection includes consideration of data amounts, data importance, communications channel quality, changes affecting the channel and/or power information. The wireless terminal encodes information indicative of the selected used rate with the user data/information to be transmitted by placing additional energy on a subset of the uplink signals. The base station receives the uplink signals including user data/information and data rate. The base station extracts the data rate used and utilizes the data rate to demodulate and decode the uplink user data/information.
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Jin Hui
Laroia Rajiv
Richardson Tom
Eng George
Huynh Nam
Kordich Donald C.
Qualcomm Incorporated
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