Techniques for acquiring measurements of a shared spectrum and performing channel selection for access points using the shared spectrum
First Claim
1. A method of wireless communication, comprising:
- performing a clear channel assessment (CCA) for a shared spectrum;
transmitting a CCA-exempt transmission (CET) to a user equipment (UE) over the shared spectrum, wherein the CET comprises a reference signal from an access point to the UE and an indication of whether the CCA was successful; and
receiving a measurement of the reference signal from the UE, the measurement indicating interference with the shared spectrum from outside of a clear channel assessment (CCA) sense range of the access point.
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Abstract
Techniques are described for wireless communication. A first method may include transmitting a reference signal from an access point over a shared spectrum to a user equipment (UE), and receiving a measurement of the reference signal from the UE. A second method may include receiving at a UE over a shared spectrum a reference signal from an access point, and transmitting a measurement of the reference signal to the access point. In each of the first and second methods, the measurement may indicate interference with the shared spectrum from outside of a clear channel assessment (CCA) range of the access point. A third method may include receiving a plurality of reference signal measurements, where each reference signal measurement corresponds to one of a plurality of access points and indicates interference with a shared spectrum from outside of a CCA range of the corresponding access point, and performing channel selection for the plurality of access points based at least in part on the received reference signal measurements.
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Citations
22 Claims
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1. A method of wireless communication, comprising:
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performing a clear channel assessment (CCA) for a shared spectrum; transmitting a CCA-exempt transmission (CET) to a user equipment (UE) over the shared spectrum, wherein the CET comprises a reference signal from an access point to the UE and an indication of whether the CCA was successful; and receiving a measurement of the reference signal from the UE, the measurement indicating interference with the shared spectrum from outside of a clear channel assessment (CCA) sense range of the access point. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for wireless communication, comprising:
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a processor; and memory coupled to the processor, wherein the processor is configured to; perform a clear channel assessment (CCA) for a shared spectrum; transmit a CCA-exempt transmission (CET) to a user equipment (UE) over the shared spectrum, wherein the CET comprises a reference signal from an access point to the UE and an indication of whether the CCA was successful; and receive a measurement of the reference signal from the UE, the measurement indicating interference with the shared spectrum from outside of a clear channel assessment (CCA) sense range of the access point. - View Dependent Claims (10, 11, 12, 13)
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14. A method of wireless communication, comprising:
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receiving at a user equipment (UE) over a shared spectrum a CCA-exempt transmission (CET) from an access point, wherein the CET comprises a reference signal from the access point to the UE and an indication of whether a CCA performed by the access point was successful; and transmitting a measurement of the reference signal to the access point, the measurement indicating interference with the shared spectrum from outside of a clear channel assessment (CCA) sense range of the access point. - View Dependent Claims (15, 16, 17, 18, 19)
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20. An apparatus for wireless communication, comprising:
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a processor; and memory coupled to the processor, wherein the processor is configured to; receive at a user equipment (UE) over a shared spectrum a CCA-exempt transmission (CET) from an access point, wherein the CET comprises a reference signal from the access point to the UE and an indication of whether a CCA performed by the access point was successful; and transmit a measurement of the reference signal to the access point, the measurement indicating interference with the shared spectrum from outside of a clear channel assessment (CCA) sense range of the access point. - View Dependent Claims (21, 22)
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Specification