Radio device having dynamic intermediate frequency scaling
First Claim
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1. A method comprising:
- receiving a radio frequency (RF) signal; and
based, at least in part, on a wireless environment parameter, selectively frequency down-converting said received RF signal to a first intermediate frequency (IF) signal having a first center frequency, and selectively frequency down-converting said received RF signal to a second IF signal having a second center frequency and wherein said second center frequency is greater than said first center frequency;
wherein said wireless environment parameter includes a time measurement since a wireless signaling was last detected; and
wherein selectively frequency down-converting said received RF signal further comprises;
frequency down-converting said received RF signal to said second IF signal when said wireless environment parameter is equal to or greater than a threshold parameter, wherein said threshold parameter includes a maximum wireless signaling time period;
frequency down-converting said received RF signal to said corresponding first IF signal when said wireless environment parameter is less than said threshold parameter;
switching from the first IF signal to the second IF signal upon detecting occurrence of the wireless signaling; and
switching from the second IF signal to the first IF signal upon detecting non-occurrence of the wireless signaling.
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Abstract
Methods and apparatuses are provided for dynamic frequency scaling of an intermediate frequency (IF) signal within a radio device.
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Citations
66 Claims
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1. A method comprising:
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receiving a radio frequency (RF) signal; and based, at least in part, on a wireless environment parameter, selectively frequency down-converting said received RF signal to a first intermediate frequency (IF) signal having a first center frequency, and selectively frequency down-converting said received RF signal to a second IF signal having a second center frequency and wherein said second center frequency is greater than said first center frequency; wherein said wireless environment parameter includes a time measurement since a wireless signaling was last detected; and wherein selectively frequency down-converting said received RF signal further comprises; frequency down-converting said received RF signal to said second IF signal when said wireless environment parameter is equal to or greater than a threshold parameter, wherein said threshold parameter includes a maximum wireless signaling time period; frequency down-converting said received RF signal to said corresponding first IF signal when said wireless environment parameter is less than said threshold parameter; switching from the first IF signal to the second IF signal upon detecting occurrence of the wireless signaling; and switching from the second IF signal to the first IF signal upon detecting non-occurrence of the wireless signaling. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An apparatus comprising:
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a receiver circuit operatively enabled to receive a radio frequency (RF) signal and, based, at least in part, on a wireless environment parameter, selectively frequency down-convert said received RF signal to a first intermediate frequency (IF) signal having a first center frequency, and selectively frequency down-converting said received RF signal to a second IF signal having a second center frequency and wherein said second center frequency is greater than said first center frequency; wherein said wireless environment parameter includes a time measurement since a wireless signaling was last detected; and wherein said receiver circuit is operatively enabled to frequency down-convert said received RF signal to said second IF signal when said wireless environment parameter is equal to or greater than a threshold parameter, wherein said threshold parameter includes a maximum wireless signaling time period; wherein said receiver circuit is operatively enabled to frequency down-convert said received RF signal to said corresponding first IF signal if said wireless environment parameter is less than said threshold parameter; wherein said receiver circuit is operatively enabled to switch from the first IF signal to the second IF signal upon detecting occurrence of the wireless signaling; and wherein said receiver circuit is operatively enabled to switch from the second IF signal to the first IF signal upon detecting non-occurrence of the wireless signaling. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. An apparatus comprising:
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means for receiving a radio frequency (RF) signal; and means for selectively frequency down-converting said received RF signal a first intermediate frequency (IF) signal having a first center frequency; means for selectively frequency down-converting said received RF signal to a second IF signal having a second center frequency, based, at least in part, on a wireless environment parameter, and wherein said second center frequency is greater than said first center frequency, wherein said wireless environment parameter includes a time measurement since a wireless signaling was last detected; and wherein said means for selectively frequency down-converting said received RF signal is operatively enabled to; frequency down-convert said received RF signal to said second IF signal when said wireless environment parameter is equal to or greater than a threshold parameter, wherein said threshold parameter includes a maximum wireless signaling time period; frequency down-convert said received RF signal to said corresponding first IF signal if said wireless environment parameter is less than said threshold parameter; switch from the first IF signal to the second IF signal upon detecting occurrence of the wireless signaling; and switch from the second IF signal to the first IF signal upon detecting non-occurrence of the wireless signaling. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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49. A non-transitory computer readable medium having stored thereon computer implementable instructions which if implemented by one or more processing units operatively enables the one or more processing units to:
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access a wireless environment parameter; and based, at least in part, on said wireless environment parameter, selectively enable a receiver circuit operatively enabled to receive a radio frequency (RF) signal to frequency down- convert said received RF signal to a first intermediate frequency (IF) signal having a first center frequency, and selectively frequency down-converting to a second IF signal having a second center frequency, wherein said second center frequency is greater than said first center frequency, wherein said wireless environment parameter includes a time measurement since a wireless signaling was last detected; and wherein selectively enable the receiver circuit operatively to frequency down-convert said RF signal further comprises; frequency down-convert said received RF signal to said second IF signal when said wireless environment parameter is equal to or greater than a threshold parameter, wherein said threshold parameter includes a maximum wireless signaling time period; frequency down-convert said received RF signal to said corresponding first IF signal when said wireless environment parameter is less than said threshold parameter; switch from the first IF signal to the second IF signal upon detecting occurrence of the wireless signaling; and switch from the second IF signal to the first IF signal upon detecting non-occurrence of the wireless signaling. - View Dependent Claims (50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62)
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63. A method comprising:
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receiving a radio frequency (RF) signal; and based, at least in part, on a wireless environment parameter, selectively frequency down-converting said received RF signal to a first intermediate frequency (IF) signal having a first center frequency, and selectively frequency down-converting said received RF signal to a second IF signal having a second center frequency and wherein said second center frequency is greater than said first center frequency, wherein said wireless environment parameter includes a time measurement since a wireless signaling was last detected; wherein selectively frequency down-converting said received RF signal further comprises; frequency down-converting said received RF signal to said corresponding first IF signal if said wireless environment parameter is less than a threshold parameter; frequency down-converting said received RF signal to said corresponding second IF signal if said wireless environment parameter is equal to or greater than said threshold parameter, wherein said threshold parameter includes a maximum wireless signaling time period; switching from the first IF signal to the second IF signal upon detecting occurrence of the wireless signaling; and switching from the second IF signal to the first IF signal upon detecting non-occurrence of the wireless signaling.
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64. A method comprising:
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receiving a radio frequency (RF) signal; and based, at least in part, on a wireless environment parameter, selectively frequency down- converting said received RF signal to a first intermediate frequency (IF) signal having a first center frequency, and selectively frequency down-converting said received RF signal to a second IF signal having a second center frequency and said second center frequency is greater than said first center frequency, wherein said wireless environment parameter includes a time measurement since a wireless signal was last detected; wherein selectively frequency down-converting said received RF signal further comprises; frequency down-converting said received RF signal to said second IF signal when said wireless environment parameter is equal to or greater than a threshold parameter, wherein said threshold parameter includes a maximum wireless signaling time period; frequency down-converting said received RF signal to said first IF signal when said wireless environment parameter is less than the threshold parameter; switching from the first IF signal to the second IF signal upon detecting occurrence of the wireless signaling; and switching from the second IF signal to the first IF signal upon detecting non-occurrence of the wireless signaling.
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65. An apparatus comprising:
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a receiver circuit operatively enabled to receive a radio frequency (RF) signal and, based, at least in part, on a wireless environment parameter, selectively frequency down-convert said received RF signal to a first intermediate frequency (IF) signal having a first center frequency, and selectively frequency down-converting said received RF signal to a second IF signal having a second center frequency and wherein said second center frequency is greater than said first center frequency; wherein said wireless environment parameter includes a time measurement since a wireless signaling was last detected; wherein said receiver circuit is operatively enabled to frequency down-convert said received RF signal to said corresponding first IF signal if said wireless environment parameter is less than a threshold parameter, frequency down-convert said received RF signal to said corresponding second IF signal if said wireless environment parameter is equal to or greater than said threshold parameter, switch from the first IF signal to the second IF signal upon detecting occurrence of the wireless signaling, and switch from the second IF signal to the first IF signal upon detecting non-occurrence of the wireless signaling, and wherein said threshold parameter includes a maximum wireless signaling time period.
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66. An apparatus comprising:
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a receiver circuit operatively enabled to receive a radio frequency (RF) signal and, based, at least in part, on a wireless environment parameter, selectively frequency down-convert said received RF signal to a first intermediate frequency (IF) signal having a first center frequency, and selectively frequency down-converting said received RF signal to a second IF signal having a second center frequency and wherein said second center frequency is greater than said first center frequency; wherein said wireless environment parameter includes a time measurement since a wireless signaling was last detected; and wherein selectively frequency down-convert said received RF signal further comprises; frequency down-convert said received RF signal to said corresponding second IF signal when said wireless environment parameter is equal to or greater than a threshold parameter, wherein said threshold parameter includes a maximum wireless signaling time period; and frequency down-convert said received RF signal to said corresponding first IF signal when said wireless environment parameter is less than said threshold parameter, wherein the receiver circuit is further operatively enabled to switch from the first IF signal to the second IF signal upon detecting occurrence of the wireless signaling, and wherein the receiver circuit is further operatively enabled to switch from the second IF signal to the first IF signal upon detecting non-occurrence of the wireless signaling.
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Specification