Systems and methods for voice and data communications including a scalable TDM switch/multiplexer

• US 8,369,317 B2
• Filed: 01/10/2011
• Issued: 02/05/2013
• Est. Priority Date: 07/01/2002
• Status: Active Grant

• Current Assignee: RPX Corporation
• Original Assignee: Converged Data Solutions Inc.
• Inventors: Delveaux, William J., Omodt, Michael J., Strauss, William D.
• Primary Examiner(s): Sam, Phirin
• Application Number:
  US12/930,605
• Publication Number:
  US 20110200034A1
• Time in Patent Office: 757 Days
• Field of Search: None
• US Class Current: 370/352
• CPC Class Codes: H04L 12/4035 in which slots of a TDMA packet structure are assigned based on a contention resolution carried out at a master unit TDM/TDMA multiplex systems per se H04J3/1694; hybrid switching systems H04L12/64
• CPC Class Codes: H04L 12/4625 Single bridge functionality, e.g. connection of two networks over a single bridge

Abstract

A method for operating a communications system is disclosed. At a first point in time, the communications system is operated using a first TDM switch/MUX controlling a first set of TDM streams operating at a first frequency. At a second point in time, a second TDM switch/MUX is installed in the communications system which controls the first set of TDM streams operating at the first frequency and also controls a second set of TDM streams operating at a second frequency that is different as compared to the first frequency. The second TDM switch/MUX couples TDM streams to and from the communications system at the first frequency, while concurrently coupling TDM streams to and from the communications system at the second frequency, and an upgradable switch/MUX capability is provided in the communications system.

Claims

1. A method for operating a communications system providing voice communications to a plurality of users, the communications system having at least one TDM bus, comprising the steps of:

at a first point in time, operating the communications system using a first TDM switch/MUX controlling a first set of TDM streams operating at a first frequency; and

at a second point in time, installing a second TDM switch/MUX in the communications system;

wherein the second TDM switch/MUX controls the first set of TDM streams operating at the first frequency and also controls a second set of TDM streams operating at a second frequency, wherein the second frequency is different as compared to the first frequency;

wherein the second TDM switch/MUX couples TDM streams to and from the communications system at the first frequency, while concurrently coupling TDM streams to and from the communications system at the second frequency;

wherein an upgradable switch/MUX capability is provided in the communications system.

2. The method of claim 1, wherein the first switch/MUX operates concurrently with the second TDM switch/MUX to couple streams to and from the communications system.

3. The method of claim 1, wherein the communications system provides voice communications to the plurality of users over a physical medium.

4. A method for operating a communications system, comprising the steps of:

providing a first TDM MUX situated in the communications system that controls a first set of one or more TDM streams operating at a first frequency;

providing an upgradable MUX capability in the communications system that allows a second TDM MUX to be installed;

wherein the second TDM MUX controls the first set of one or more TDM streams and also controls a second set of one or more TDM streams operating at a second frequency, wherein the second frequency is different as compared to the first frequency.

5. The method of claim 4, wherein at least one data stream of the first set of TDM streams is coupled by the second TDM MUX to the second set of data streams at the first frequency, while concurrently controlling other data streams in the second set of TDM streams at the second frequency.

6. The method of claim 4, wherein the first set of TDM streams provide voice communications to a plurality of users over a physical medium.

7. A method for operating a communications system providing voice communications to a plurality of users, the communications system having at least one TDM bus, comprising the steps of:

at a first point in time, operating the communications system using a first TDM switch/MUX controlling a first set of TDM streams, wherein the first TDM switch/MUX is characterized by a first switching capacity, wherein the first set of TDM streams are coupled to a first set of cards; and

at a second point in time, installing a second TDM switch/MUX in the communications system;

wherein the second TDM switch/MUX controls the first set of TDM streams and also controls a second set of TDM streams, wherein the second TDM switch/MUX is characterized by a second switching capacity, wherein the second switching capacity is larger as compared to the first switching capacity;

wherein an upgradable switch/MUX capability is provided in the communications system.

8. The method of claim 7, wherein the first switch/MUX operates with limited function while the second TDM switch/MUX is operational.

9. The method of claim 7, wherein the communications system provides voice communications to the plurality of users over a physical medium.

10. A method for operating a communications system, comprising the steps of:

providing a first TDM MUX situated in the communications system that controls a first set of TDM streams characterized by a first switching capacity;

providing an upgradable MUX capability in the communications system that allows a second TDM MUX to be installed;

wherein the second TDM MUX controls the first set of TDM streams and also controls a second set of TDM streams, wherein the second TDM MUX is characterized by a second switching capacity, wherein the second switching capacity is larger as compared to the first switching capacity.

11. The method of claim 10, wherein the first TDM MUX operates with limited function while the second TDM MUX is operational.

12. The method of claim 10, wherein the first set of TDM streams provide voice communications to a plurality of users over a physical medium.

13. A communications system including TDM switching, comprising:

a first TDM MUX situated in the communications system that controls a first set of one or more TDM streams operating at a first frequency;

an upgradable MUX capability in the communications system that allows a second TDM MUX to be installed;

wherein the second TDM MUX controls the first set of one or more TDM streams and also controls a second set of one or more TDM streams operating at a second frequency, wherein the second frequency is different as compared to the first frequency.

14. The communications system of claim 13, wherein at least one data stream of the first set of TDM streams is coupled by the second TDM MUX to the second set of data streams at the first frequency, while concurrently controlling other data streams in the second set of TDM streams at the second frequency.

15. The communications system of claim 13, wherein the first set of one or more TDM streams provides voice communications to a plurality of users over a physical medium.

16. A communications system including TDM switching, comprising:

a first TDM MUX situated in the communications system that controls a first set of TDM streams characterized by a first switching capacity;

an upgradable MUX capability in the communications system that allows a second TDM MUX to be installed;

wherein the second TDM MUX controls the first set of TDM streams and also controls a second set of TDM streams, wherein the second TDM MUX is characterized by a second switching capacity, wherein the second switching capacity is larger as compared to the first switching capacity.

17. The communications system of claim 16, wherein the first TDM MUX operates with limited function while the second TDM MUX is operational.

18. The communication system of claim 16, wherein the first set of TDM streams provide voice communications to a plurality of users over a physical medium.