Adaptively using subframes for radar detection in unlicensed spectrum
First Claim
1. A method of communications, comprising:
- scheduling a first set of subframes in a frame duration for traffic based at least in part on a first configuration for communications in an unlicensed frequency band, wherein the first set of subframes in the first configuration comprises two sets of two consecutive subframes corresponding to downlink traffic periods;
scheduling, based at least in part on the first configuration, a second set of subframes in the frame duration for detection of a primary user of the unlicensed frequency band, wherein the second set of subframes in the first configuration comprises two sets of three consecutive subframes corresponding to gap periods for detection of the primary user of the unlicensed frequency band;
comparing an amount of traffic to a scheduler threshold;
identifying a second configuration for communications in the unlicensed frequency band when the amount of traffic exceeds the scheduler threshold, wherein the second configuration for communications is identified based on a type of primary user being detected; and
adjusting a number of subframes in the first and second set of subframes based on the second configuration for communications.
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Abstract
Systems and methods for adaptively using subframes for radar detection in unlicensed spectrum are disclosed. The systems and methods include scheduling a first set of subframes in a frame duration for traffic based at least in part on a first configuration for communications in an unlicensed frequency band. Further, the systems and methods include scheduling, based at least in part on the first configuration, a second set of subframes in the frame duration for detection of a primary user of the unlicensed frequency band. Moreover, the systems and methods include adjusting a number of subframes in the first and second set of subframes based on a second configuration for communications, wherein the second configuration for communications is identified based on a type of primary user being detected.
32 Citations
22 Claims
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1. A method of communications, comprising:
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scheduling a first set of subframes in a frame duration for traffic based at least in part on a first configuration for communications in an unlicensed frequency band, wherein the first set of subframes in the first configuration comprises two sets of two consecutive subframes corresponding to downlink traffic periods; scheduling, based at least in part on the first configuration, a second set of subframes in the frame duration for detection of a primary user of the unlicensed frequency band, wherein the second set of subframes in the first configuration comprises two sets of three consecutive subframes corresponding to gap periods for detection of the primary user of the unlicensed frequency band; comparing an amount of traffic to a scheduler threshold; identifying a second configuration for communications in the unlicensed frequency band when the amount of traffic exceeds the scheduler threshold, wherein the second configuration for communications is identified based on a type of primary user being detected; and adjusting a number of subframes in the first and second set of subframes based on the second configuration for communications. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A computer-readable medium storing computer executable code for communication, comprising code to:
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schedule a first set of subframes in a frame duration for traffic based at least in part on a first configuration for communications in an unlicensed frequency band, wherein the first set of subframes in the first configuration comprises two sets of two consecutive subframes corresponding to downlink traffic periods; schedule, based at least in part on the first configuration, a second set of subframes in the frame duration for detection of a primary user of the unlicensed frequency band, wherein the second set of subframes in the first configuration comprises two sets of three consecutive subframes corresponding to gap periods for detection of the primary user of the unlicensed frequency band; compare an amount of traffic to a scheduler threshold; identify a second configuration for communications in the unlicensed frequency band when the amount of traffic exceeds the scheduler threshold, wherein the second configuration for communications is identified based on a type of primary user being detected; and adjust a number of subframes in the first and second set of subframes based on the second configuration for communications.
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12. An apparatus for communication, comprising:
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means for scheduling a first set of subframes in a frame duration for traffic based at least in part on a first configuration for communications in an unlicensed frequency band, wherein the first set of subframes in the first configuration comprises two sets of two consecutive subframes corresponding to downlink traffic periods; means for scheduling, based at least in part on the first configuration, a second set of subframes in the frame duration for detection of a primary user of the unlicensed frequency band, wherein the second set of subframes in the first configuration comprises two sets of three consecutive subframes corresponding to gap periods for detection of the primary user of the unlicensed frequency band; means for comparing an amount of traffic to a scheduler threshold; means for identifying a second configuration for communications in the unlicensed frequency band when the amount of traffic exceeds the scheduler threshold, wherein the second configuration for communications is identified based on a type of primary user being detected; and means for adjusting a number of subframes in the first and second set of subframes based on the second configuration for communications.
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13. An apparatus for communication, comprising:
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a memory storing executable instructions; and a processor in communication with the memory, wherein the processor is configured to execute the instructions to; schedule a first set of subframes in a frame duration for traffic based at least in part on a first configuration for communications in an unlicensed frequency band, wherein the first set of subframes in the first configuration comprises two sets of two consecutive subframes corresponding to downlink traffic periods; schedule, based at least in part on the first configuration, a second set of subframes in the frame duration detection of a primary user of the unlicensed frequency band, wherein the second set of subframes in the first configuration comprises two sets of three consecutive subframes corresponding to gap periods for detection of the primary user of the unlicensed frequency band; compare an amount of traffic to a scheduler threshold; identify a second configuration for communications in the unlicensed frequency band when the amount of traffic exceeds the scheduler threshold, wherein the second configuration for communications is identified based on a type of primary user being detected; and adjust a number of subframes in the first and second set of subframes based on the second configuration for communications. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification