Back to results
US 7,889,692 B2Granted
Packet error rate estimation in a communication system
AssigneeAlcatel-Lucent USA Inc.
InventorsQi Bi, Dongzhe Cui, Qinqing Zhang
Life of this patent
Estimating the term…
Abstract
Data communication includes an estimate of packet error rate that is useful, for example, when there is insufficient data transmission to provide a direct measurement of packet error rate. At least one pilot channel output provides a basis to determine an estimated packet error rate. One example includes using a pilot channel ratio of an energy-per-chip to a noise spectrum density. Another example includes using a pilot symbol error rate from the pilot channel as the basis for determining the traffic channel packet error rate.
Claims17
A method of communicating, comprising:
- determining, by a processor, a traffic channel packet error rate using at least one selected output of an associated pilot channel, the selected output comprising a pilot channel chip energy to noise ratio;
- determining M*N values of the selected pilot channel output, where M is an integer corresponding to a number of values of an energy-per-chip to noise ratio and N is a maximum number of transmissions per encoder packet;
- and
- translating the determined values of the selected pilot channel output to N values of a corresponding traffic channel output.
1 more element
Dependencies are inferred from the claim text.