| 摘要 |
<p>A radio remote unit (RRU) and a self-adapting method for upper and lower connection of optical interface thereof are disclosed, which are used for resolving the deficiency in the art caused by the case that the locations of the optical interfaces of the upper and lower connection and the physical optical interfaces of the RRU are fixed. The solution includes: initiating an RRU and closing the signal transmission of every optical interface of the RRU; determining an upper and lower connection flag bit, then according to the upper and lower connection flag bit, determining the reference resource of the phase-locking clock of the RRU; waiting for the phase-lock loop to be locked, then opening the signal transmission of every optical interface. The solution realizes self-adaptation of the upper and lower connection of the optical interface of the RRU, is able to judge the upper and lower connection flag bit of the optical interface exactly, and ensures that the flag bit is stable.</p> |
