Dynamic capacity operating point management for a vocoder in an access terminal
First Claim
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1. An apparatus comprising:
- a variable rate vocoder configured to encode speech signals with a plurality of encoding rates, the variable rate vocoder being configured to change from a first encoding rate to a second encoding rate according to a received signal indicating reverse link load; and
a processing unit comprising an infinite impulse response (IIR) filter configured to filter the received signal indicating reverse link load using a time index in slots, a filter time constant, the IIR filter output, and the IIR filter input.
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Abstract
A variable rate vocoder is configured to encode speech signals with a plurality of encoding rates and to change from a first encoding rate to a second encoding rate according to a received signal indicating reverse link load.
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Citations
22 Claims
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1. An apparatus comprising:
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a variable rate vocoder configured to encode speech signals with a plurality of encoding rates, the variable rate vocoder being configured to change from a first encoding rate to a second encoding rate according to a received signal indicating reverse link load; and a processing unit comprising an infinite impulse response (IIR) filter configured to filter the received signal indicating reverse link load using a time index in slots, a filter time constant, the IIR filter output, and the IIR filter input. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus comprising:
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a variable rate vocoder configured to encode speech signals with a plurality of encoding rates, the variable rate vocoder being configured to change from a first encoding rate associated with a first operating point to a second encoding rate associated with a second operating point according to a filtered signal indicating reverse link load; and a processing unit comprising an infinite impulse response (IIR) filter configured to filter the received signal indicating reverse link load using a time index in slots, a filter time constant, the IIR filter output, and the IIR filter input.
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12. A method comprising:
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receiving a signal indicating reverse link load; processing the signal by a processing unit, wherein the processing comprises an infinite impulse response (IIR) filter filtering the received signal indicating reverse link load using a time index in slots, a filter time constant, the IIR filter output, and the IIR filter input; and based on the processed signal, changing a speech signal encoding rate from a first encoding rate to a second encoding rate. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A computer-readable medium encoded with computer executable instructions to be executed by a computer for implementing a method comprising:
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receiving a signal indicating reverse link load; processing the signal, wherein the processing comprises filtering the received signal indicating reverse link load using an infinite impulse response (IIR) filter, a time index in slots, a filter time constant, the IIR filter output, and the IIR filter input; and based on the processed signal, changing a speech signal encoding rate from a first encoding rate to a second encoding rate.
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22. An apparatus, comprising:
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means for receiving a signal indicating reverse link load; means for processing the signal, wherein the processing comprises filtering the received signal indicating reverse link load using an infinite impulse response (IIR) filter, a time index in slots, a filter time constant, the IIR filter output, and the IIR filter input; and means for changing a speech signal encoding rate from a first encoding rate to a second encoding rate based on the processed signal.
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Specification