Frequency offset differential pulse position modulation
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Accused Products
Abstract
The present invention provides such a need by utilizing a frequency offset differential pulse position modulation scheme to transmit data between computing devices within a wireless network system. The differential pulse position modulation component of the scheme enables the present invention to provide relative immunity to interference for the system. In particular, such immunity from interference is achieved by utilizing a blanking time between pulse positions, which is large enough to allow the interference between frequency offset—differential pulse position modulation pulses to subside. The frequency offset component of the scheme enables the system to utilize multiple frequency channels to enable the system to achieve higher data rates. In particular, by utilizing a time offset between the frequency channels, the blanking time can be reduced, thereby increasing the amount of data that can be transmitted with a set period of time.
27 Citations
46 Claims
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1. (canceled)
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2. A method for controlling access to a medium comprising:
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accessing said medium;
determining a first transmit time for at least one frame on said medium;
sensing traffic on said medium;
deferring a transmission of at least one frame based at least in part on said sensed traffic;
counting a number of instances said transmission of at least one frame is deferred;
determining a second transmit time for at least one frame. - View Dependent Claims (3, 4, 5, 6, 7, 8)
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9. A method for controlling access to a medium comprising:
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attempting a first transmission of data;
deferring a transmission of said data;
attempting a second transmission of said data;
counting a number of instances said transmission of said data is deferred; and
terminating deferral of transmission of said data. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A method for controlling access to a medium comprising:
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attempting a first transmission of data;
deferring a transmission of said data;
attempting a second transmission of said data;
counting a number of instances said transmission of said data is deferred; and
selecting to transmit said data based at least in part on said number of instances said transmission of said data is deferred. - View Dependent Claims (16)
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17. An apparatus comprising:
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means for accessing a medium;
means for determining a first transmit time for at least one frame on a medium;
means for sensing traffic on said medium;
means for deferring a transmission of at least one frame based at least in part on said sensed traffic;
means for counting a number of instances said transmission of at least one frame is deferred;
means for determining a second transmit time for at least one frame. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. An apparatus comprising:
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means for attempting a first transmission of data;
means for deferring a transmission of said data;
means for attempting a second transmission of said data;
means for counting a number of instances said transmission of said data is deferred; and
means for terminating deferral of transmission of said data. - View Dependent Claims (25, 26, 27, 28, 29)
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30. An apparatus comprising:
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means for attempting a first transmission of data;
means for deferring a transmission of said data;
means for attempting a second transmission of said data;
means for counting a number of instances said transmission of said data is deferred; and
means for selecting to transmit said data based at least in part on said number of instances said transmission of said data is deferred. - View Dependent Claims (31)
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32. An apparatus comprising:
a node capable of;
accessing a medium;
transmitting at least one frame on medium;
sensing traffic on said medium;
deferring a transmission of at least one frame based at least in part on said sensed traffic;
counting a number of instances said transmission of at least one frame is deferred; and
determining transmit time for at least one frame. - View Dependent Claims (33, 34, 35, 36, 37, 38)
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39. An apparatus comprising:
a node capable of;
attempting a first transmission of data;
deferring a transmission of said data;
attempting a second transmission of said data;
counting a number of instances said transmission of data is deferred; and
terminating deferral of transmission of said data. - View Dependent Claims (40, 41, 42, 43, 44, 46)
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45. An apparatus comprising:
a node capable of;
attempting a first transmission of data;
deferring a transmission of said data;
attempting a second transmission of said data;
counting a number of instances said transmission of data is deferred; and
selecting to transmit said data based at least in part on said number of instances said transmission of said data is deferred.
Specification