Cellular base station with intelligent call routing

• US 6,597,912 B1
• Filed: 08/21/2000
• Issued: 07/22/2003
• Est. Priority Date: 05/04/1995
• Status: Expired due to Fees

• Current Assignee: LGC Wireless Incorporated (TE Connectivity Limited)
• Original Assignee: International Communications International Limited
• Inventors: White, Timothy Richard, Sage, Gerald F., Lu, Priscilla Marilyn
• Primary Examiner(s): Maung, Nay
• Assistant Examiner(s): Trinh, Sonny
• Application Number:
  US09/644,112
• Time in Patent Office: 1,065 Days
• Field of Search: 455/426, 455/434, 455/435, 455/445, 455/561, 455/411, 455/560, 455/432, 455/428, 455/550, 455/524, 455/525, 455/422, 455/73
• US Class Current: 455/445
• CPC Class Codes: H04W 84/14 WLL [Wireless Local Loop]; RLL [Radio Local Loop]
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A base station communicates with a plurality of mobile stations over a cellular network. In one embodiment, the base station includes a transceiver configured to receive inbound information from the mobile station and transmit outbound information to the mobile station. The transceiver equalizes and decodes the inbound information and encodes the outbound information. The transceiver is coupled to a data bus for communicating the inbound and outbound information with the other elements in the base station. The transceiver is also coupled to a control bus. An trunk module is coupled to the data bus and to a mobile services center. The trunk module communicates inbound and outbound information with the mobile services center. The trunk module is also coupled to the control bus. Finally, a central processor is coupled to the control bus to control the transceiver and the trunk module. A preferred protocol is Global Systems for Mobile Communication (GSM).

Claims

1. A base station for communicating with a mobile station via a radio link, the base station comprising:

a plurality of transceivers configured to receive inbound information from the mobile station and transmit outbound information to the mobile station, each transceiver comprising;

a signal processor coupled to a data bus, the signal processor configured to equalize and decode the inbound information and to transmit the inbound information to the data bus, and configures to receive the outbound information from the data bus and encode the outbound information; and

a transceiver processor coupled to the signal processor and a control bus, the transceiver processor configured to control the signal processor; and

a trunk module having an interface processor coupled to the data bus and the control bus and configured to receive the inbound information from the data bus and transmit the inbound information to a foreign network, and configured to receive the outbound information from a foreign network and transmit the outbound information to the data bus.

2. The base station of claim 1, further comprising a central processor coupled to the control bus and configured to control the transceiver processor and the trunk module.

3. The base station of claim 2, wherein:

the trunk module further includes a time/space switch coupled to the data bus, a plurality of signal processors coupled to the time/space switch, and an interface framer coupled to the time/space switch.

4. The base station of claim 3, wherein the plurality of signal processors in the trunk module coupled to the time/space switch are adapted to perform transcoder rate adaptation, echo cancelling or other internetwork functions.

5. The base station of claim 1, wherein at least one of the plurality of transceivers includes a string of a plurality of signal processors coupled to a data bus, the string of signal processors configured to equalize and decode the inbound information and to transmit the inbound information to the data bus, and configured to receive the outbound information from the data bus and encode the outbound information.