公开(公告)号：US11946981B2

公开(公告)日：2024-04-02

申请号：US17702949

申请日：2022-03-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian Hu ,  Jinjun Yu ,  Hu Zhao ,  Yongding Zhang

IPC: G01R31/58 ,  H01Q1/24 ,  H04B17/12

CPC classification number: G01R31/58 ,  H01Q1/246 ,  H04B17/12

Abstract: A cable sequence detection method and a detection system. A base station antenna includes N ports, an RRU includes M antenna ports and one calibration port, any port i of the base station antenna corresponds to a directional coupling branch Ti, and a switch circuit Ki whose connection and disconnection are controlled by an RCU is disposed on the Ti. The method includes: the RRU sends a detection signal to the base station antenna through antenna port j; the RCU controls the switch circuit Ki to be disconnected and another switch circuit to be connected; the RRU detects whether energy Qi obtained by the Ti is greater than a threshold; and the RRU determines whether the antenna port j of the RRU is connected to the port i of the base station antenna according to whether Qi is greater than the threshold.