DSRC listen mode for Wi-Fi using DSRC spectrum
First Claim
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1. A method for detecting dedicated short range communications (DSRC) transmissions to determine whether to use at least a portion of the DSRC spectrum, comprising:
- operating, by a multi-mode client device, outside of the DSRC spectrum using a first clock rate;
switching to a second clock rate while operating outside of the DSRC spectrum to detect DSRC transmissions using the DSRC spectrum;
determining an activity level in the DSRC spectrum;
operating a first communication channel in at least a portion of the DSRC spectrum based at least in part on the activity level; and
maintaining a second communication channel outside of the DSRC spectrum in conjunction with the first communication channel.
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Abstract
Methods, systems, and devices are described for detecting dedicated short range communications (DSRC) transmissions to determine whether to use at least a portion of the DSRC spectrum. In one embodiment, a multi-mode device may be operated outside of the DSRC spectrum using a first clock rate, and may then be switched to a second clock rate while operating outside of the DSRC spectrum to detect DSRC transmissions using the DSRC spectrum.
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Citations
30 Claims
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1. A method for detecting dedicated short range communications (DSRC) transmissions to determine whether to use at least a portion of the DSRC spectrum, comprising:
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operating, by a multi-mode client device, outside of the DSRC spectrum using a first clock rate; switching to a second clock rate while operating outside of the DSRC spectrum to detect DSRC transmissions using the DSRC spectrum; determining an activity level in the DSRC spectrum; operating a first communication channel in at least a portion of the DSRC spectrum based at least in part on the activity level; and maintaining a second communication channel outside of the DSRC spectrum in conjunction with the first communication channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A multi-mode client device for detecting dedicated short range communications (DSRC) transmissions to determine whether to use at least a portion of the DSRC spectrum, comprising:
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a processor; memory in electronic communication with the processor; and instructions stored in the memory, the instructions being executable by the processor to; operate the multi-mode device outside of the DSRC spectrum using a first clock rate; switch to a second clock rate while operating outside of the DSRC spectrum to detect DSRC transmissions using the DSRC spectrum; determine an activity level in the DSRC spectrum; operate a first communication channel in at least a portion of the DSRC spectrum based at least in part on the activity level; and maintain a second communication channel outside of the DSRC spectrum in conjunction with the first communication channel. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A multi-mode client device for detecting dedicated short range communications (DSRC) transmissions to determine whether to use at least a portion of the DSRC spectrum, comprising:
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means for operating the multi-mode device outside of the DSRC spectrum using a first clock rate; means for switching to a second clock rate while operating outside of the DSRC spectrum to detect DSRC transmissions using the DSRC spectrum; means for determining an activity level in the DSRC spectrum; means for operating a first communication channel in at least a portion of the DSRC spectrum based at least in part on the activity level; and means for maintaining a second communication channel outside of the DSRC spectrum in conjunction with the first communication channel. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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30. A computer program product for detecting dedicated short range communications (DSRC) transmissions to determine whether to use at least a portion of the DSRC spectrum, the computer program product comprising a non-transitory computer-readable medium storing instructions executable by a processor to:
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operate a multi-mode client device outside of the DSRC spectrum using a first clock rate; switch to a second clock rate while operating outside of the DSRC spectrum to detect DSRC transmissions using the DSRC spectrum; determine an activity level in the DSRC spectrum; operate a first communication channel in at least a portion of the DSRC spectrum based at least in part on the activity level; and maintain a second communication channel outside of the DSRC spectrum in conjunction with the first communication channel.
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Specification