| 摘要 |
<p>A Radio Remote Unit (RRU) and a self-adapting method for upper and lower connections of optical interfaces thereof are disclosed, which are used for resolving the problem in the traditional art caused by the fixed locations of the optical interfaces of the upper and lower connections and the physical optical interfaces of the RRU. The solution comprises: initiating an RRU and turning off signal transmission of each optical interface of the RRU; determining an upper and lower connection flag bit, then determining a reference resource of a phase-locked clock of the RRU according to the upper and lower connection flag bit; turning on the signal transmission of each optical interface after the phase-locked loop is locked. The solution realizes self-adaptation of the upper and lower connections of the optical interfaces of the RRU, and is able to exactly judge the upper and lower connection flag bit of the optical interface, which ensures the stability of the flag bit.</p> |
