ARLINGTON HEIGHTS, Ill.-Interim Standard-634, an open network interface standard, has been approved by the engineering committee of the Telecommunications Industry Association. The standard provides an open interface between the mobile switching center and the radio base station subsystem in a cellular network.
It is the mobile switching center/base station interface for public 800 MHz. IS-634 will support Advanced Mobile Phone Service, Narrowband AMPS, Time Division Multiple Access and Code Division Multiple Access systems.
Motorola Inc. said approving IS-634 is an important step for the industry. “It will help ensure competition based on cost and features, provide operators with a greater choice in equipment purchases and greatly stimulate the introduction of new services into the market,” said Marty Singer, vice president of business development for Motorola’s Cellular Infrastructure Group. “Motorola’s CDMA radio systems, for example, now can be deployed with any switch implementing the IS-634 standard,” Singer said.
IS-634 is related to IS-651, another proposed standard approved in March by the TIA engineering committee. IS-651 supports an open interface between the switch center and radio base station subsystem for U.S. personal communications services at 1800 MHz.
The proposed IS-634 interface is essentially identical to the CDMA portion of the proposed IS-651 interface, Motorola said.