METHODS AND APPARATUS FOR MEASURING INTERFERENCE AND COMMUNICATING INFORMATION
First Claim
1. A method of operating a first communications device in a system where communications resources may be used by multiple devices at the same time, the method comprising:
- transmitting data during a first time interval in a set of recurring time intervals corresponding to said first device;
pseudo randomly selecting a second time interval in said set of recurring time intervals to be used as a combined data transmission and channel measurement time interval;
transmitting data during a first portion of the second time interval; and
performing a channel measurement during a second portion of the second time interval in said set of recurring time intervals, said second portion of the second time interval being a period of time in which said first communications device does not transmit.
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Accused Products
Abstract
A wireless communications device operates in a system where communications resources may be used by multiple devices concurrently. A device, with an acquired set of recurring time intervals, selects, e.g., pseudo-randomly, an interval or intervals to be used as a combined data transmission and channel measurement time interval. The other time intervals in its set are to be used as data transmission time intervals. The combined use type interval facilitates the measurement of interference on the device'"'"'s channel while still allowing the device to transmit some data during the interval. A combined use interval includes a first portion for data transmission and a second portion for channel measurement. In some embodiments, the first portion is fixed size and the second portion occurs at the very end of the interval. In some embodiments, the duration of the first portion is varied over time such that the channel measurement start time varies.
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Citations
20 Claims
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1. A method of operating a first communications device in a system where communications resources may be used by multiple devices at the same time, the method comprising:
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transmitting data during a first time interval in a set of recurring time intervals corresponding to said first device; pseudo randomly selecting a second time interval in said set of recurring time intervals to be used as a combined data transmission and channel measurement time interval; transmitting data during a first portion of the second time interval; and performing a channel measurement during a second portion of the second time interval in said set of recurring time intervals, said second portion of the second time interval being a period of time in which said first communications device does not transmit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A first communications device comprising:
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means for transmitting data during a first time interval in a set of recurring time intervals corresponding to said first device; means for pseudo randomly selecting a second time interval in said set of recurring time intervals to be used as a combined data transmission and channel measurement time interval; means for transmitting data during a first portion of the second time interval; and means for performing a channel measurement during a second portion of the second time interval in said set of recurring time intervals, said second portion of the second time interval being a period of time in which said first communications device does not transmit. - View Dependent Claims (11, 12, 13, 14)
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15. A computer program product for use in a first wireless communications device, the computer program product comprising:
a non-transitory computer readable medium comprising; code for causing at least one computer to transmit data during a first time interval in a set of recurring time intervals corresponding to said first device; code for causing said at least one computer to pseudo randomly select a second time interval in said set of recurring time intervals to be used as a combined data transmission and channel measurement time interval; code for causing said at least one computer to transmitting data during a first portion of the second time interval; and code for causing said at least one computer to perform a channel measurement during a second portion of the second time interval in said set of recurring time intervals, said second portion of the second time interval being a period of time in which said first communications device does not transmit.
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16. A first communications device comprising:
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at least one processor configured to; transmit data during a first time interval in a set of recurring time intervals corresponding to said first device; pseudo randomly select a second time interval in said set of recurring time intervals to be used as a combined data transmission and channel measurement time interval; transmit data during a first portion of the second time interval; and perform a channel measurement during a second portion of the second time interval in said set of recurring time intervals, said second portion of the second time interval being a period of time in which said first communications device does not transmit; and memory coupled to said at least one processor. - View Dependent Claims (17, 18, 19, 20)
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Specification