Clear to send-to-self transmissions in an LTE-controlled Wi-Fi system
First Claim
1. A method of wireless communication comprising:
- performing a clear channel assessment (CCA) procedure on a channel operating across multiple sub-bands of a radio frequency (RF) spectrum band;
determining the channel is available based at least in part on the performed CCA; and
transmitting a special header in the channel operating across the multiple sub-bands, the special header comprising multiple instances of a header packet across the multiple sub-bands and transmitted during two or more transmission time intervals (TTIs), each instance of the header packet comprising a first set of fields used by a first radio access technology and a second set of fields used by a second radio access technology, wherein a first TTI of the two or more TTIs includes a first instance of the header packet in a first sub-band of the multiple sub-bands, and a second instance of the header packet in a second sub-band of the multiple sub-bands, wherein a second TTI of the two or more TTIs that is subsequent to the first TTI includes a third instance of the header packet in one of the multiple sub-bands, and wherein a third TTI of the two or more TTIs includes a fourth instance of the header packet in a different sub-band than the one of the multiple sub-bands.
1 Assignment
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Accused Products
Abstract
Methods, systems, and devices for wireless communication are described. A base station may perform a clear channel assessment (CCA) procedure on a channel that includes multiple sub-bands of a radio frequency spectrum band. The base station may determine that the channel is available based on the CCA and transmit a special header in the channel. In some examples, the special header may include multiple transmission time intervals (TTIs), where each TTI may include a header packet in each sub-band of the radio frequency spectrum band. In some cases, the header packet may include a clear to send (CTS)-to-self frame structure. The base station may transmit a first TTI across each of the sub-bands at a first power level, and transmit additional TTIs across the sub-bands at a different power level. Additional header packets may be transmitted at the boundaries of subsequent subframes.
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Citations
30 Claims
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1. A method of wireless communication comprising:
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performing a clear channel assessment (CCA) procedure on a channel operating across multiple sub-bands of a radio frequency (RF) spectrum band; determining the channel is available based at least in part on the performed CCA; and transmitting a special header in the channel operating across the multiple sub-bands, the special header comprising multiple instances of a header packet across the multiple sub-bands and transmitted during two or more transmission time intervals (TTIs), each instance of the header packet comprising a first set of fields used by a first radio access technology and a second set of fields used by a second radio access technology, wherein a first TTI of the two or more TTIs includes a first instance of the header packet in a first sub-band of the multiple sub-bands, and a second instance of the header packet in a second sub-band of the multiple sub-bands, wherein a second TTI of the two or more TTIs that is subsequent to the first TTI includes a third instance of the header packet in one of the multiple sub-bands, and wherein a third TTI of the two or more TTIs includes a fourth instance of the header packet in a different sub-band than the one of the multiple sub-bands. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 30)
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13. An apparatus for wireless communication comprising:
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means for performing a clear channel assessment (CCA) procedure on a channel operating across multiple sub-bands of a radio frequency (RF) spectrum band; means for determining the channel is available based at least in part on the performed CCA; and means for transmitting a special header in the channel operating across the multiple sub-bands, the special header comprising multiple instances of a header packet across the multiple sub-bands and transmitted during two or more transmission time intervals (TTIs), each instance of the header packet comprising a first set of fields used by a first radio access technology and a second set of fields used by a second radio access technology, wherein a first TTI of the two or more TTIs includes a first instance of the header packet in a first sub-band of the multiple sub-bands, and a second instance of the header packet in a second sub-band of the multiple sub-bands, wherein a second TTI of the two or more TTIs that is subsequent to the first TTI includes a third instance of the header packet in one of the multiple sub-bands, and wherein a third TTI of the two or more TTIs includes a fourth instance of the header packet in a different sub-band than the one of the multiple sub-bands. - View Dependent Claims (14, 15, 16)
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17. An apparatus for wireless communication, comprising:
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a processor; memory in electronic communication with the processor; and instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to; perform a clear channel assessment (CCA) procedure on a channel operating across multiple sub-bands of a radio frequency (RF) spectrum band; determine the channel is available based at least in part on the performed CCA; and transmit a special header in the channel operating across the multiple sub-bands, the special header comprising multiple instances of a header packet across the multiple sub-bands and transmitted during two or more transmission time intervals (TTIs), each instance of the header packet comprising a first set of fields used by a first radio access technology and a second set of fields used by a second radio access technology, wherein a first TTI of the two or more TTIs includes a first instance of the header packet in a first sub-band of the multiple sub-bands, and a second instance of the header packet in a second sub-band of the multiple sub-bands, wherein a second TTI of the two or more TTIs that is subsequent to the first TTI includes a third instance of the header packet in one of the multiple sub-bands, and wherein a third TTI of the two or more TTIs includes a fourth instance of the header packet in a different sub-band than the one of the multiple sub-bands. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to
perform a clear channel assessment (CCA) procedure on a channel operating across multiple sub-bands of a radio frequency (RF) spectrum band; -
determine the channel is available based at least in part on the performed CCA; and transmit a special header in the channel operating across the multiple sub-bands, the special header comprising multiple instances of a header packet across the multiple sub-bands and transmitted during two or more transmission time intervals (TTIs), each instance of the header packet comprising a first set of fields used by a first radio access technology and a second set of fields used by a second radio access technology, wherein a first TTI of the two or more TTIs includes a first instance of the header packet in a first sub-band of the multiple sub-bands, and a second instance of the header packet in a second sub-band of the multiple sub-bands, wherein a second TTI of the two or more TTIs that is subsequent to the first TTI includes a third instance of the header packet in one of the multiple sub-bands, and wherein a third TTI of the two or more TTIs includes a fourth instance of the header packet n a different sub-band than the one of the multiple sub-bands.
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Specification