System and method of managing interconnections in mobile communications

• US 20020164988A1
• Filed: 05/07/2001
• Published: 11/07/2002
• Est. Priority Date: 05/07/2001
• Status: Active Grant

• Current Assignee: Ribbon Communications Operating Company, Inc. (Ribbon Communications, Inc.)
• Original Assignee: Winphoria Networks, Inc. (Motorola Solutions, Inc.)
• Inventors: Snide, Todd Andrew, Aravamudan, Murali, Naqvi, Shamim A., Vishwanathan, Kumar K.
• Granted Patent: US 6,633,767 B2
• Time in Patent Office: Days
• US Class Current: 455/445
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 76/22 Manipulation of transport tunnels
• CPC Class Codes: H04W 92/14 between access point controllers and backbone network device

Abstract

Interconnections are managed in a mobile communications network having at least one mobile switching center (MSC) and at least one base station subsystem (BS), wherein the MSC and BS each communicate signaling messages according to a mobile signaling protocol. A first connection is provided between a first device and a second device in the network and a second connection is provided between the first device and a third device in the network. The first device includes a proxy switch for use in the network. The proxy switch includes signaling message handling logic for receiving messages from the MSC and BS in accordance with the mobile signaling protocol; message interception logic, cooperating with the signaling message handling logic, for sending an acknowledgment message to an MSC or BS that transmits a signaling message received by the signaling message handling logic and for preventing the signaling messages from being forwarded to the other of the BS and MSC respectively; message conversion logic, cooperating with the signaling message handling logic, for converting a signaling message received by the signaling message handling logic from one of the MSC and BS into a converted signaling message for transmission to the other of the BS and MSC, respectively; and message transmission logic, cooperating with signaling message handling logic, for transmitting signaling messages from one of the MSC and the BS to the other of the BS and MSC, respectively. A condition is determined to exist in the network that affects the operation of the first device. A third connection is established between the second device and the third device in the network. The network is caused to operate in a manner that is consistent with the absence of the device from the network. A first mechanism is provided that is responsive to a condition existing in the network that affects the operation of a device in the network. A second mechanism is provided that is responsive to the first mechanism and operative to electrically isolate the device from the network.

Claims

1. A method for use in managing interconnections in a mobile communications network having at least one mobile switching center (MSC) and at least one base station subsystem (BS), wherein the MSC and BS each communicate signaling messages according to a mobile signaling protocol, the method comprising:

providing a first connection between a first device and a second device in the network, the first device including a proxy switch for use in the network, the proxy switch comprising signaling message handling logic for receiving messages from the MSC and BS in accordance with said mobile signaling protocol;

message interception logic, cooperating with the signaling message handling logic, for sending an acknowledgment message to an MSC or BS that transmits a signaling message received by the signaling message handling logic and for preventing the signaling messages from being forwarded to the other of the BS and MSC respectively;

message conversion logic, cooperating with the signaling message handling logic, for converting a signaling message received by the signaling message handling logic from one of the MSC and BS into a converted signaling message for transmission to the other of the BS and MSC, respectively; and

message transmission logic, cooperating with signaling message handling logic, for transmitting signaling messages from one of the MSC and the BS to the other of the BS and MSC, respectively;

providing a second connection between the first device and a third device in the network;

determining that a condition exists in the network that affects the operation of the first device; and

establishing a third connection between the second device and the third device in the network.

2. The method of claim 1, wherein the second device includes a base station subsystem (BS).

3. The method of claim 1, wherein the second device includes a mobile switching center (MSC).

4. The method of claim 2, wherein the third device includes a mobile switching center (MSC).

5. The method of claim 1, wherein the condition includes a loss of electrical power to the proxy switch.

6. The method of claim 2, wherein the condition includes a loss of electrical power to the proxy switch.

7. The method of claim 3, wherein the condition includes a loss of electrical power to the proxy switch.

8. The method of claim 1, wherein the condition includes a problem with the first device.

9. The method of claim 1, wherein the condition includes a loss of electrical power.

10. The method of claim 1, wherein the third connection is established passively.

11. The method of claim 1, wherein the condition includes an indication of a user selection.

12. The method of claim 1, further comprising

removing at least one of the first and second connections.

13. The method of claim 1, further comprising

electrically isolating the first device from at least one of the second and third devices.

14. The method of claim 1, wherein at least one of the first, second, and third connections includes at least a portion of a T1 connection.

15. The method of claim 1, wherein at least one of the first, second, and third connections utilizes an optical MOS relay.

18. The system of claim 17, further comprising

a third mechanism responsive the first mechanism and operative to allow signals to bypass the device.

19. The system of claim 17, wherein the condition includes a loss of electrical power to the proxy switch.

20. The system of claim 17, wherein the device is logically disposed between a base station subsystem (BS) and a mobile switching center (MSC).

21. The system of claim 17, wherein the condition includes a problem with the first device.

22. The system of claim 17, wherein the condition includes a loss of electrical power.

23. The system of claim 17, wherein the condition includes a loss of electrical power to the device.

24. The system of claim 17, wherein the condition includes an indication of a user selection.

25. The system of claim 17, wherein the device includes at least a portion of a T1 connection.

26. The system of claim 17, wherein the second mechanism includes an optical MOS relay.

27. The system of claim 18, wherein the third mechanism includes an optical MOS relay.

16. A method for use in managing interconnections in a mobile communications network having at least one mobile switching center (MSC) and at least one base station subsystem (BS), wherein the MSC and BS each communicate signaling messages according to a mobile signaling protocol, the method comprising:

determining that a condition exists in the network that affects the operation of a device in the network, the device including a proxy switch for use in the network, the proxy switch comprising signaling message handling logic for receiving messages from the MSC and BS in accordance with said mobile signaling protocol;

message interception logic, cooperating with the signaling message handling logic, for sending an acknowledgment message to an MSC or BS that transmits a signaling message received by the signaling message handling logic and for preventing the signaling messages from being forwarded to the other of the BS and MSC respectively;

message conversion logic, cooperating with the signaling message handling logic, for converting a signaling message received by the signaling message handling logic from one of the MSC and BS into a converted signaling message for transmission to the other of the BS and MSC, respectively; and

message transmission logic, cooperating with signaling message handling logic, for transmitting signaling messages from one of the MSC and the BS to the other of the BS and MSC, respectively; and

causing the network to operate in a manner that is consistent with the absence of the device from the network.

17. A system for use in managing interconnections in a mobile communications network having at least one mobile switching center (MSC) and at least one base station subsystem (BS), wherein the MSC and BS each communicate signaling messages according to a mobile signaling protocol, the method comprising:

a first mechanism responsive to a condition existing in the network that affects the operation of a device in the network, the device including a proxy switch for use in the network, the proxy switch comprising signaling message handling logic for receiving messages from the MSC and BS in accordance with said mobile signaling protocol;

message interception logic, cooperating with the signaling message handling logic, for sending an acknowledgment message to an MSC or BS that transmits a signaling message received by the signaling message handling logic and for preventing the signaling messages from being forwarded to the other of the BS and MSC respectively;

message conversion logic, cooperating with the signaling message handling logic, for converting a signaling message received by the signaling message handling logic from one of the MSC and BS into a converted signaling message for transmission to the other of the BS and MSC, respectively; and

message transmission logic, cooperating with signaling message handling logic, for transmitting signaling messages from one of the MSC and the BS to the other of the BS and MSC, respectively; and

a second mechanism responsive to the first mechanism and operative to electrically isolate the device from the network.