ARLINGTON, Va.-The Telecommunications Industry Association announced it has published a variety of interim standards for wireless networks, including 1800 MHz personal communications services systems, public mobile systems, wideband spread spectrum systems, a speech service option for wideband spread spectrum systems and mobile station loopback options.
The new IS-129 addresses functions that require interworking and interoperability to ensure nationwide and global availability of PCS in the 1800 MHz broadband frequencies for mobile users, said TIA.
The association’s IS-684 specifies a radio link protocol that layer-3 entities may use to isochronally transport data across a Time Division Multiple Access radio interface. The protocol maintains bit-count integrity by delivering cumulative nibble counts to layer 3, said TIA.
IS-657 defines procedures on the L interface for support of circuit-mode and packet-mode data transmission on IS-95 and ANSI J-STD-008 based wideband spread spectrum systems. It provides procedures that can apply to Cellular Digital Packet Data and Mobile Internet Protocol services. It also specifies generic procedures unique to the L interface, said TIA.
IS-96-B forms a standard for Service Option 1, which provides two-way voice communications between a base station and a mobile station using the dynamically variable data rate speech codec algorithm.
The Mobile Station Loopback Service Option, IS-126-A, provides the basis for a loopback of primary traffic information bits through a mobile station. The service option provides the means for a base station to supply a known data stream on both the forward and reverse traffic channels so that a mobile station’s receiving and transmitting performance can be measured, said TIA.
