Method and system for handling telecommunications data traffic

• US 6,055,224 A
• Filed: 12/30/1996
• Issued: 04/25/2000
• Est. Priority Date: 12/30/1996
• Status: Expired due to Term

• Current Assignee: Hanger Solutions, LLC (IP Investments Group LLC)
• Original Assignee: Siemens Information And Communication Networks, Inc.
• Inventors: King, George
• Primary Examiner(s): Hsu, Alpus H.
• Assistant Examiner(s): Qureshi, Afsar M.
• Application Number:
  US08/774,344
• Time in Patent Office: 1,212 Days
• Field of Search: 370/220, 370/221, 370/217-270, 370/419, 370/420, 370/401, 370/522, 370/474, 379/271, 379/273, 379/279, 379/213, 341/67
• US Class Current: 370/217
• CPC Class Codes: H04Q 11/04 for time-division multiplexing H04Q11/0001 takes precedence
• CPC Class Codes: H04Q 2213/13003 Constructional details of switching devices
• CPC Class Codes: H04Q 2213/13034 A/D conversion, code compression/expansion
• CPC Class Codes: H04Q 2213/1309 Apparatus individually associated with a subscriber line, line circuits
• CPC Class Codes: H04Q 2213/13096 Digital apparatus individually associated with a subscriber line, digital line circuits
• CPC Class Codes: H04Q 2213/13097 Numbering, addressing
• CPC Class Codes: H04Q 2213/13174 Data transmission, file transfer
• CPC Class Codes: H04Q 2213/13176 Common channel signaling, CCS7
• CPC Class Codes: H04Q 2213/13196 Connection circuit/link/trunk/junction, bridge, router, gateway
• CPC Class Codes: H04Q 2213/13202 Network termination [NT]
• CPC Class Codes: H04Q 2213/13204 Protocols
• CPC Class Codes: H04Q 2213/13209 ISDN
• CPC Class Codes: H04Q 2213/13216 Code signals, frame structure
• CPC Class Codes: H04Q 2213/13299 Bus

Abstract

A method and device for (a) generating a constant rate data stream from data, (b) providing, via a termination unit, the constant rate data stream to a router, and (c) assigning an address to the termination unit. The method and device permit the data to bypass a switching network of a central office.

Claims

1. A device for communicating data from a first location, via a central office having at least one digital line unit, to a router at a second location, comprising:

a) a data transceiver,

i) being located at the first location,

ii) accepting the data, and

iii) generating a constant rate data stream from the data;

b) a first link,

i) being coupled with the data transceiver, and

ii) carrying the constant rate data stream generated by the data transceiver;

c) a line termination unit,

i) being located on the at least one digital line unit, and

ii) terminating the first link;

d) a second link,

i) being coupled with the line termination unit, and

ii) carrying the constant rate data stream; and

e) an address assignment unit,

i) terminating the second link,

ii) assigning an address to the line termination unit, and

iii) providing the constant rate data stream to the router.

2. The device of claim 1, wherein the constant rate data stream has a rate data of 64 Kpbs.

3. The device of claim 1, wherein the constant rate data stream has a rate data of 128 Kpbs.

4. The device of claim 1, wherein the line termination unit is a basic rate interface.

5. The device of claim 1, wherein the address assignment unit comprises

i) a line termination unit interface for terminating the second link,

ii) a storage device, storing a program,

iii) a processor for executing the program stored in the storage device,

iv) a router interface for terminating a link to the router, and

v) a bus system, shared by the line termination unit interface, the processor, and the router interface.

6. The device of claim 5, wherein the storage device stores a look up table in which the line termination unit is associated with the address assigned to the line termination unit.

7. The device of claim 5, wherein the storage device stores a look up table in which the line termination unit interface is associated with the address assigned to the line termination unit.

8. A device for communicating data from a first location to a router, the first location having a remote line termination unit, the remote line termination unit coupled, via a link, with a central office, comprising:

a) a data transceiver,

i) being located at the first location,

ii) accepting the data, and

iii) generating a constant rate data stream from the data;

b) a first link,

i) being coupled with the data transceiver, and

ii) carrying the constant rate data stream generated by the data transceiver;

c) a line termination node,

i) being located on the remote line termination unit, and

ii) terminating the first link;

d) a second link,

i) being coupled with the line termination node, and

ii) carrying the constant rate data stream; and

e) an address assignment unit,

i) terminating the second link,

ii) assigning an address to the line termination node, and

iii) providing the constant rate data stream to the router.

9. The device of claim 8, wherein the constant rate data stream has a rate data of 64 Kpbs.

10. The device of claim 8, wherein the constant rate data stream has a rate data of 128 Kpbs.

11. The device of claim 8, wherein the address assignment unit comprises

i) a line termination node interface for terminating the second link,

ii) a storage device, storing a program,

iii) a processor for executing the program stored in the storage device,

iv) a router interface for terminating a link to the router, and

v) a bus system, shared by the line termination node interface, the processor, and the router interface.

12. The device of claim 11, wherein the storage device stores a look up table in which the line termination node is associated with the address assigned to the line termination unit.

13. The device of claim 11, wherein the storage device stores a look up table in which the line termination node interface is associated with the address assigned to the line termination node.

14. In a central office having

a digital line unit having a subscriber line module which terminates a number of local lines,

a switch interface module coupled with the digital line unit, and

a switching network coupled with the switch interface module,

a device for communicating to a router a constant rate data stream, received on one of the local lines, comprising:

a) a line termination unit,

i) being located on the digital line unit, and

ii) terminating the on e of the local lines;

b) a link,

i) being coupled with the line termination unit, and

ii) carrying the constant rate data stream; and

c) an address assignment unit,

i) terminating the link,

ii) assigning an address to the line termination unit, and

iii) providing the constant rate data stream to the router, wherein the constant rate data stream bypasses the switching network.

15. The device of claim 14, wherein the line termination unit is a basic rate interface.

16. The device of claim 14, wherein the address assignment unit comprises

i) a line termination unit interface for terminating the link,

ii) a storage device, storing a program,

iii) a processor for executing the program stored in the storage device,

iv) a router interface for terminating a link to the router, and

v) a bus system, shared by the line termination unit interface, the processor, and the router interface.

17. The device of claim 16, wherein the storage device stores a look up table in which the line termination unit is associated with the address assigned to the line termination unit.

18. The device of claim 16, wherein the storage device stores a look up table in which the line termination unit interface is associated with the address assigned to the line termination unit.