The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 2014
Filed:
Feb. 08, 2013
Huawei Technologies Co., Ltd., Shenzhen, CN;
Aihua Hu, Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
The present invention discloses a link scanning method for cascaded RCUs and a remote electrical tilt antenna system. The method includes: receiving, a link scanning message and sending the link scanning message to the RCU in the next cascaded RCU; generating, a link scanning response message, sending the link scanning response message to the RCU in the preceding cascaded RCU, and reporting the link scanning response message to the CCU, and sending, the link scanning message to the CCU. In the present invention, by adding a time delay in the link of the remote end serial communication bus, each RCU does not respond to the link scanning message simultaneously, the time-delayed link scanning response messages in the link of the remote end serial communication bus of each RCU are not aliased, therefore, the bus conflict problem of the link scanning when the RCUs are cascaded is effectively solved.