System packet-based centralized base station controller

A base communications switching system (BSS) for use in coupling a wireless communication system for communicating encoded digital data between a mobile subscriber (MS) and a circuit based public switch telephone system (PSTN), the system comprising:

• a base station controller (BSC), an ATM-based transcoding subsystem (AXC), and a base transceiver subsystem (BTS);
• said system providing for interface to an external source of the encoded digital data coupled from the PSTN, and additionally providing coupling to the MS, for communicating the encoded digital data between the MS and the PSTN;
• wherein the BSC provides for mobility management of coupling the encoded digital data between a PSTN source and the MS, independent of mobility characteristics of the MS;
• wherein the AXC is further comprised of an ATM switch, a transcoder (XC), a base transceiver system interface (BTSI), and a network interface subsystem (NI), wherein the ATM switch is coupled to each of the BSC, the XC, the BTSI, and the NI, and provides means for coupling and communicating the encoded digital data in an ATM format between subsystems coupled thereto;
• wherein the NI is coupled to receive data originating from the PSTN source and to receive data in the ATM format from the ATM switch;
• means for conversion of format between circuit based communication from the PSTN and data in the ATM format of ATM communication via the ATM switch;
• wherein the BTSI is coupled to receive signals originating from the MS, and the BTSI provides means for coupling to the MS via the BTS, wherein communications between the BTS and the MS is provided in a digital signal air interface protocol (DSAIP), which is coupled via the BTS to the BTSI, wherein the BTSI provides means for converting the DSAIP to the ATM format to provide ATM cell data for coupling to the ATM switch for communication of the ATM cell data to the transcoder (XC);
• wherein, for signals originating from the PSTN source, the BTSI provides means for converting from the ATM format to a second ATM format compatible with the BTS, and these signals are converted back into the ATM format for communication to the BTSI and for communication therefrom to the BTS and therefrom to the MS;
• and
• wherein the transcoder (XC) provides means for converting the digital signal air interface protocol (DSAIP) to a second defined protocol required by the PSIN for communication from the MS to the PSTN and means for converting a PCM-based protocol into the DSAIP for communication from the PSTN to the MS.

A base station system (BSS) for coupling to a mobile switching center (MSC) using a first data format and to a base transceiver subsystem (BTS) using a second data format, said BSS comprising:

• a base station controller (BSC) providing:
• means for providing mobility management for managing a transfer of information content with a wireless transceiver;
• means for providing real time control of call setup, hand-off and call teardown functions;
• wherein the BSC has a first ATM link for communication of control data as ATM cells;
• an operations maintenance control subsystem (OMC), having a second ATM link for communication control data and information content as ATMI cells for providing maintenance and control functions;
• an ATM switch, transcoder, and control center (AXC);
• wherein the AXC is further comprised of ATM link interfaces for coupling to the first and second ATM links;
• wherein the BSC provides for real-time operational control of the AXC;
• and
• wherein the AXC is comprised of means for interfacing between the MSC and the AXC using the first data format and means for interfacing between the BTS and the AXC using the second data format.