CCA clearance in unlicensed spectrum
US9743363B2 · kind B2 · utility
3Cited by
3References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2015 |
| Grant date | Aug 22, 2017 |
| Priority date | — |
| Expiry date | Jun 18, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/243
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques are described for contention-based wireless communications channel access that may improve the likelihood that a contention procedure will pass and allow a device to transmit an uplink or downlink transmission using the contention-based channel. Various disclosed techniques may determine a transmit power for a subsequent transmission based on channel characteristics during one or more clear channel assessment (CCA) time durations. The transmit power may be selected to provide a CCA threshold that may increase the likelihood that a device will win contention for the channel during the CCA procedure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.