Method of saving power by reducing active reception time in standby mode
First Claim
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1. A method comprising:
- storing digital samples of a signal received by a mobile communication station in standby mode, said digital samples including data from a base communication station to said mobile communication station, said data indicating whether a message to said mobile communication station is forthcoming;
deactivating at least part of a receive path of said mobile communication station;
processing said stored samples; and
deciding whether to enable said mobile communication station to receive said message,wherein said processing includes;
searching for multipaths within said signal; and
estimating whether said stored samples are sufficient to enable reliable decoding of said data,wherein said estimating comprises;
estimating a plurality of signal power values corresponding to a plurality of found multipaths, respectively;
estimating a plurality of noise-and-interference power values corresponding to said plurality of found multipaths, respectively;
determining a ratio value corresponding to a plurality of ratios between said plurality of signal power values and said plurality of noise-and-interference power values, respectively; and
comparing said ratio value to a predetermined value.
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Abstract
In some embodiments of the present invention, a signal received by a mobile communication station in standby mode is sampled. The samples are converted to digital samples and stored in a memory. The digital samples include data from a base communication station to the mobile communication station. The stored digital samples are processed.
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Citations
21 Claims
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1. A method comprising:
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storing digital samples of a signal received by a mobile communication station in standby mode, said digital samples including data from a base communication station to said mobile communication station, said data indicating whether a message to said mobile communication station is forthcoming; deactivating at least part of a receive path of said mobile communication station; processing said stored samples; and deciding whether to enable said mobile communication station to receive said message, wherein said processing includes; searching for multipaths within said signal; and estimating whether said stored samples are sufficient to enable reliable decoding of said data, wherein said estimating comprises; estimating a plurality of signal power values corresponding to a plurality of found multipaths, respectively; estimating a plurality of noise-and-interference power values corresponding to said plurality of found multipaths, respectively; determining a ratio value corresponding to a plurality of ratios between said plurality of signal power values and said plurality of noise-and-interference power values, respectively; and comparing said ratio value to a predetermined value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A mobile communication station comprising:
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a dipole antenna; and a processor to process stored digital samples of a signal received via said antenna by said mobile communication station in standby mode, said digital samples including data from a base communication station to said mobile communication station, said data indicating whether a message to said mobile communication station is forthcoming, wherein said processor is able to decide whether said mobile communication station is to receive said message and is able to deactivate at least part of a receive path of said mobile communication stations, and wherein said processor is able to search for multipaths within said signal;
estimate a plurality of signal power values corresponding to a plurality of found multipaths, respectively;
estimate a plurality of noise-and-interference power values corresponding to said plurality of found multipaths, respectively;
determine a ratio value corresponding to a plurality of ratios between said plurality of signal power values and said plurality of noise-and-interference power values, respectively; and
estimate whether said stored samples are sufficient to enable reliable decoding of said data by comparing said ratio value to a predetermined value. - View Dependent Claims (17)
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18. A mobile communication station comprising:
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a memory containing instructions, which when executed by a processor, causes said processor to; store digital samples of a signal received by said mobile communication station in standby mode, said digital samples including data from a base communication station to said mobile communication station, said data indicating whether a message to said mobile communication station is forthcoming; process said stored samples; and decide whether to enable said mobile communication station to receive said messages, wherein the instructions causing said processor to process said stored samples cause said processor to; search for multipaths within said signal; estimate a plurality of signal power values corresponding to a plurality of found multipaths, respectively; estimate a plurality of noise-and-interference power values corresponding to said plurality of found multipaths, respectively; determine a ratio value corresponding to a plurality of ratios between said plurality of signal power values and said plurality of noise-and-interference power values, respectively; and estimate whether said stored samples are sufficient to enable reliable decoding of said data by comparing said ratio value to a predetermined value. - View Dependent Claims (19)
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20. An apparatus comprising:
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a processor to process stored digital samples of a signal received by a mobile communication station in standby mode, said digital samples including data from a base communication station to said mobile communication station, said data indicating whether a message to said mobile communication station is forthcoming, wherein said processor is able to decide whether said mobile communication station is to receive said message and is able to deactivate at least part of a receive path of said mobile communication station and wherein said processor is able to search for multipaths within said signal;
estimate a plurality of signal power values corresponding to a plurality of found multipaths, respectively;
estimate a plurality of noise-and-interference power values corresponding to said plurality of found multipaths, respectively;
determine a ratio value corresponding to a plurality of ratios between said plurality of signal power values and said plurality of noise-and-interference power values, respectively; and
estimate whether said stored samples are sufficient to enable reliable decoding of said data by comparing said ratio value to a predetermined value. - View Dependent Claims (21)
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Specification