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A New Method for Supporting Multiple AISG2.0 Interfaces in Wireless Communication Base Stations

A New Method for Supporting Multiple AISG2.0 Interfaces in Wireless Communication Base Stations 


This paper proposes a design method to support multiple AISG2.0 interfaces on the base station. With the cooperation of hardware and software design, not only can a single AISG protocol stack manage multiple AISG interfaces, but also conflicts between multiple interfaces can be avoided.


This paper also lists examples of multi-AISG interface configurations that have been verified to be feasible.



With the widespread application of the AISG protocol, especially its 2.0 version, there are more and more antenna-related devices (ALDs) on the operator's base station site, and the connection methods are complex and diverse.


Connect via AISG port, or connect to TMA tower mount amplifier via RF cable feed-through DC and 00K signal, then serially connect to RET (Remote Electrically Adjustable Tilt Unit), or convert between OOK and RS485 via T-head of


This poses a new design challenge to the AISG function of the base station, requiring the base station to support both the RS485+DC mode of the AISG port and the OOK+DC mode of the two antenna ports. There are devices that require 2 antenna ports and AISG ports to work at the same time.


Hardware Design of Multiple AISG Interfaces


In the existing design that can only support one AISG interface, the DC sum signal of the antenna ports 1 and 2 or the AISG port is switched internally in the base station.


When the AISG device is scanned, if there is an ALD device on the antenna port or AISG port, the corresponding port will be opened, but it cannot support both ports being connected to the device.


RRU RCU AISG Cable IP67 Grade RET Control CableM16 AISG RET Cable Assembly with IP68 ATCB-B01 AISG RET Control Cable  Remote Electrical Tilt cable

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