| 摘要 |
Devices, methods, storage media, instructions, and apparatus for communications between a user equipment (UE) and an evolved node B (eNB) on unlicensed channels are described. In one embodiment, a receives, from an eNB, a set of system information associated with the eNB, generates a physical random access channel (PRACH) preamble structured to meet one or more occupancy criteria for a first unlicensed channel, and transmits, using radio frequency (RF) circuitry of the UE, the PRACH preamble on the first unlicensed channel according to a set of coexistence criteria for the first unlicensed channel. In various embodiments, the PRACH preamble unlicensed channel use are structure to meet occupancy and coexistence criteria for the unlicensed channels in different ways. |
