Mobile station supervision of the forward dedicated control channel when in the discontinuous transmission mode
First Claim
1. A method for supervising transmissions from a remote station comprising:
- measuring signal-to-noise ratios of received transmissions;
determining if a frame is good or bad based on an average signal-to-noise ratio over a first time interval, the average signal-to-noise ratio ascertained by averaging a plurality of aggregated signal-to-noise ratios corresponding to pilot signals received from each of a plurality of base stations in an active set over the first time interval; and
discontinuing transmission of a reverse link as a function of whether said average signal-to-noise ratio is below a first threshold for a second time interval.
1 Assignment
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Accused Products
Abstract
A method and apparatus for supervising a dedicated control channel when in the discontinuous transmission mode. The mobile station monitors the frames it receives from a base station and maintains a counter of bad, good, and empty frames, referred to as CNT1, CNT2, CNT3, respectively. If a received frame is a good frame, CNT1 is reset to zero and CNT2 is incremented. If the received frame is a bad frame, CNT1 is incremented and CNT2 is reset to zero. If the received frame is an empty frame, CNT1 and CNT2 are unchanged but CNT3 is incremented. A transmitter coupled to the mobile station is enabled or disabled depending upon which, if any, of the CNTs reaches or exceeds a designated threshold value. In another embodiment, an average aggregated value reflecting the strength of the pilot signals in an active set, measured at the mobile station, is used for comparison to a threshold.
37 Citations
25 Claims
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1. A method for supervising transmissions from a remote station comprising:
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measuring signal-to-noise ratios of received transmissions; determining if a frame is good or bad based on an average signal-to-noise ratio over a first time interval, the average signal-to-noise ratio ascertained by averaging a plurality of aggregated signal-to-noise ratios corresponding to pilot signals received from each of a plurality of base stations in an active set over the first time interval; and discontinuing transmission of a reverse link as a function of whether said average signal-to-noise ratio is below a first threshold for a second time interval.
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2. A method for supervising transmissions from a remote station comprising:
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measuring signal quality of received transmissions; determining if a frame is good or bad based on an average for a signal quality measurement over a first time interval; determining an aggregate of said signal quality for a plurality of received transmission, wherein determining the average comprises determining an average for said aggregate over the first time interval; and discontinuing transmission of a reverse link if said average for said aggregate is below a first threshold for a second time interval (T1). - View Dependent Claims (3, 4, 5, 6)
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7. An apparatus for supervising transmissions from a remote station comprising:
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means for measuring signal-to-noise ratios of received transmissions; means for determining if a frame is good or bad based on an average signal-to-noise ratio over a first time interval, the average signal-to-noise ratio ascertained by averaging a plurality of aggregated signal-to-noise ratios corresponding to pilot signals received from each of a plurality of base stations in an active set over the first time interval; and means for discontinuing transmission of a reverse link as a function of whether said average signal-to-noise ratio is below a first threshold for a second time interval.
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8. An apparatus for supervising transmissions from a remote station comprising:
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means for measuring signal quality of received transmissions; means for determining if a frame is good or bad based on an average for said signal quality measurement over a first time interval; means for determining an aggregate of said signal quality for a plurality of received transmissions, wherein determining the average comprises means for determining an average for said aggregate over the first time interval; and means for discontinuing transmission of a reverse link if said average for said aggregate is below a first threshold for a second time interval (T1). - View Dependent Claims (9, 10, 11, 12)
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13. A method for supervising transmissions from a remote station comprising:
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measuring signal quality of received transmissions based on aggregating a plurality of signal-to-noise ratios, the plurality of signal-to-noise ratios corresponding to pilot signals received from each of a plurality of base stations in an active set; determining if a received frame of the received transmissions is a bad frame based on the signal quality; counting a number of bad frames; determining if a received frame of the received transmissions is a good frame based on the signal quality; counting a number of good frames; resetting the number of bad frames to a new value when the received frame is a good frame; and disabling a transmitter from transmitting a reverse link when the number of bad frames exceeds a bad frame limit.
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14. An apparatus for supervising transmissions from a remote station comprising:
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means for measuring signal quality of received transmissions based on aggregating a plurality of signal-to-noise ratios, the plurality of signal-to-noise ratios corresponding to pilot signals received from each of a plurality of base stations in an active set; means for determining if a received frame of the received transmissions is a bad frame based on the signal quality; means for counting a number of bad frames; means for determining if a received frame of the received transmissions is a good frame based on the signal quality; means for counting a number of good frames; means for resetting the number of bad frames to a new value when the received frame is a good frame; and means for disabling a transmitter from transmitting a reverse link when the number of bad frames exceeds a bad frame limit.
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15. A processing unit for supervising transmissions from a remote station comprising:
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means for measuring signal quality of received transmissions; means for determining if a frame is good or bad based on an average for said signal quality measurement over a first time interval; means for determining an aggregate of said signal quality for a plurality of received transmission, wherein the means for determining the average comprises means for determining an average of said signal quality measurement for said aggregate of said signal quality over the first time interval; and means for discontinuing transmission of a reverse link if said average of said signal quality measurement for said aggregate is below a first threshold for a second time interval (T1). - View Dependent Claims (16, 17, 18, 19, 20)
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21. An apparatus comprising:
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a receiver configured to receive a data signal and a plurality of pilot signals, the plurality of pilot signals respectively received from each of a plurality of base stations in an active set; a decoder configured to decode the data signal to determine whether a bad frame or a good frame has been received in the data signal based on an aggregated signal-to-noise ratio, the aggregated signal-to-noise ratio ascertained by aggregating signal-to-noise ratios corresponding to each of the plurality of pilot signals; a control processor configured to receive an indication from the decoder, the indication indicating whether a bad frame or a good frame has been received, wherein the control processor counts the number of bad frames and good frames; and a transmitter configured to transmit an output signal, wherein the control processor is configured to disable the transmitter as a function of the indication from the decoder. - View Dependent Claims (22, 23, 24)
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25. A computer program product, comprising:
a non-transitory computer-readable medium comprising; code for causing at least one computer to measure signal-to-noise ratios of received transmissions; code for causing at least one computer to determine if a frame is good or bad based on an average signal-to-noise ratio over a first time interval, the average signal-to-noise ratio ascertained by averaging a plurality of aggregated signal-to-noise ratios corresponding to pilot signals received from each of a plurality of base stations in an active set over the first time interval; and code for causing at least one computer to discontinue transmission of a reverse link as a function of whether said average signal-to-noise ratio is below a first threshold for a second time interval.
Specification