Determination and use of adaptive thresholds for received messages
AssigneeNokia Corporation
InventorsTeemu Sipila, Tuomas Saukkonen
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Abstract
A method is disclosed that includes measuring, during a measurement period, values corresponding to noise and interference signals received from a channel. The measurement period coincides with a period when no signal is transmitted on the channel. The method also includes determining one or more thresholds based upon the measured values. Second signals that correspond to a message are received on the channel. The message includes an indicator having a number of possible states. A value is determined corresponding to the indicator based upon the second signals. One of the possible states is assigned to the indicator of the received message based upon the one or more thresholds and the determined value.
Claims43
A method comprising:
- during a measurement period, measuring values corresponding to noise and interference signals received from a channel, wherein the measurement period coincides with a period when no signal is transmitted on the channel;
- determining at least one threshold based upon the measured values;
- receiving on the channel second signals corresponding to a message, the message comprising an indicator having a plurality of possible states;
- determining a value corresponding to the indicator based upon the second signals;
- and
- assigning one of the plurality of possible states to the indicator of the received message based upon the at least one threshold and the determined value.
An apparatus comprising:
- a memory;
- and
- a data processor coupled to the memory, the data processor configured to execute a program of machine-readable instructions to perform the operations of:
- determining at least one threshold using values measured during a measurement period, the measured values corresponding to noise and interference signals received from a channel, wherein the measurement period coincides with a period when no signal is transmitted on the channel;
- and
- assigning one of a plurality of possible states to an indicator that corresponds to a portion of a message received from second signals on the channel, the assigning using the at least one threshold and a determined value corresponding to signals for the portion of the message.
An apparatus comprising:
- means for measuring, during a measurement period, values corresponding to noise and interference signals received from a channel, wherein the measurement period coincides with a period when no signal is transmitted on the channel;
- means for determining, using the measured values, at least one threshold;
- means for receiving on the channel second signals corresponding to a message, the message comprising an indicator having a plurality of possible states;
- means for determining, using the second signals, a value corresponding to the indicator;
- and
- means for assigning, using the at least one threshold and the determined value, one of the plurality of possible states to the indicator of the received message.
A computer program product comprising program instructions embodied on a tangible computer-readable medium, execution of the program instructions resulting in operations comprising:
- during a measurement period, measuring values corresponding to noise and interference signals received from a channel, wherein the measurement period coincides with a period when no signal is transmitted on the channel;
- determining at least one threshold based upon the measured values;
- receiving on the channel second signals corresponding to a message, the message comprising an indicator having a plurality of possible states;
- determining a value corresponding to the indicator based upon the second signals;
- and
- assigning one of the plurality of possible states to the indicator of the received message based upon the at least one threshold and the determined value.
The computer program product of claim 38, wherein one of the possible states corresponds to no signal being transmitted on the channel.
The computer program product of claim 39, further comprising the operation of performing at least one function in response to the assigned state.
Dependencies are inferred from the claim text.