System and method for compressing data in a communications environment

• US 20040179555A1
• Filed: 03/11/2003
• Published: 09/16/2004
• Est. Priority Date: 03/11/2003
• Status: Abandoned Application

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Smith, Malcolm M.
• Application Number:
  US10/387,195
• Publication Number:
  US 20040179555A1
• Time in Patent Office: Days
• US Class Current: 370/521
• CPC Class Codes: H04L 69/04 Protocols for data compression, e.g. ROHC
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

A method for compressing data is provided that includes accumulating a plurality of bits associated with a communications flow and determining whether one or more of the bits correspond to a silence signal associated with a time division multiplexed (TDM) circuit that facilitates propagation of the flow. A predefined silence pattern may be communicated, in place of one or more of the bits, to a next destination when it is determined that one or more of the bits correspond to the silence signal.

Claims

1. An apparatus for compressing data, comprising:

an aggregation node associated with a base station controller and operable to accumulate a plurality of bits associated with a communications flow, the aggregation node being operable to determine whether one or more of the bits correspond to a silence signal associated with a time division multiplexed (TDM) circuit that facilitates propagation of the flow, wherein the aggregation node is further operable to communicate a predefined silence pattern in place of one or more of the bits to a next destination when it is determined that one or more of the bits correspond to the silence signal.

2. The apparatus of claim 1, further comprising:

a cell site element associated with a base transceiver station and operable to receive the predefined silence pattern from the aggregation node, the cell site element being further operable to accumulate a plurality of bits associated with an additional communications flow, the cell site element operable to determine whether one or more of the bits of the additional communications flow correspond to a silence signal associated with the TDM circuit that facilitates propagation of the additional communications flow, the cell site element being further operable to communicate the predefined silence pattern in place of one or more of the bits of the additional communications flow to a next destination when it is determined that one or more of the bits of the additional communications flow correspond to the silence signal.

3. The apparatus of claim 1, wherein the aggregation node further includes a framer operable to separate a global system for mobile (GSM) signal corresponding to the flow such that the GSM signal is broken into multiple digital signaling zero (DSO) segments.

4. The apparatus of claim 1, wherein the aggregation node further comprises an 8.60 framer operable to receive a selected DSO segment from the flow and to identify whether the segment represents silence data.

5. The apparatus of claim 1, wherein the aggregation node further comprises an algorithm operable to execute compression on one or more of the bits of the flow, and wherein the algorithm is further operable to terminate the TDM circuit corresponding to the silence signal and to convert the TDM circuit to an asynchronous circuit using one or more internet protocol (IP) packets.

6. The apparatus of claim 1, wherein the silence signal corresponds to idle bits, and wherein the idle bits are replaced with no packets such that packets are not transmitted when idle sequence bits are being communicated on the TDM circuit.

7. An apparatus for compressing data, comprising:

a cell site element associated with a base transceiver station and operable to accumulate a plurality of bits associated with a communications flow, the cell site element operable to determine whether one or more of the bits of the communications flow correspond to a silence signal associated with a time division multiplexed (TDM) circuit that facilitates propagation of the communications flow, the cell site element being further operable to communicate a predefined silence pattern in place of one or more of the bits of the communications flow to a next destination when it is determined that one or more of the bits of the communications flow correspond to the silence signal.

8. The apparatus of claim 7, wherein the cell site element further includes a framer operable to separate a global system for mobile (GSM) signal corresponding to the flow such that the GSM signal is broken into multiple digital signaling zero (DSO) segments.

9. The apparatus of claim 7, wherein the cell site element further comprises an 8.60 framer operable to receive a selected DSO segment from the flow and to identify whether the segment represents silence data.

10. The apparatus of claim 7, wherein the cell site element further comprises an algorithm operable to execute compression on one or more of the bits of the flow, and wherein the algorithm is further operable to terminate the TDM circuit corresponding to the silence signal and to convert the TDM circuit to an asynchronous circuit using one or more internet protocol (IP) packets.

11. The apparatus of claim 7, wherein the silence signal corresponds to idle bits, and wherein the idle bits are replaced with no packets such that packets are not transmitted when idle sequence bits are being communicated on the TDM circuit.

12. A method for compressing data, comprising:

accumulating a plurality of bits associated with a communications flow;

determining whether one or more of the bits correspond to a silence signal associated with a time division multiplexed (TDM) circuit that facilitates propagation of the flow; and

communicating a predefined silence pattern, in place of one or more of the bits, to a next destination when it is determined that one or more of the bits correspond to the silence signal.

13. The method of claim 12, further comprising:

receiving the predefined silence pattern at the next destination; and

identifying that the predefined silence pattern corresponds to a silence signal and that the predefined silence pattern was communicated locally.

14. The method of claim 12, further comprising:

separating a global system for mobile (GSM) signal corresponding to the flow such that the GSM signal is broken into multiple digital signaling zero (DSO) segments.

15. The method of claim 12, further comprising:

executing compression on one or more of the bits of the flow;

terminating the TDM circuit corresponding to the silence signal; and

converting the TDM circuit to an asynchronous circuit using one or more internet protocol (IP) packets.

16. The method of claim 12, further comprising:

replacing one or more idle bits that correspond to the silence signal with no packets such that packets are not transmitted when idle sequence bits are being communicated on the TDM circuit.

17. A system for compressing data, comprising:

means for accumulating a plurality of bits associated with a communications flow;

means for determining whether one or more of the bits correspond to a silence signal associated with a time division multiplexed (TDM) circuit that facilitates propagation of the flow; and

means for communicating a predefined silence pattern, in place of one or more of the bits, to a next destination when it is determined that one or more of the bits correspond to the silence signal.

18. The system of claim 17, further comprising:

means for receiving the predefined silence pattern at the next destination; and

means for identifying that the predefined silence pattern corresponds to a silence signal and that the predefined silence pattern was communicated locally.

19. The system of claim 17, further comprising:

means for separating a global system for mobile (GSM) signal corresponding to the flow such that the GSM signal is broken into multiple digital signaling zero (DSO) segments.

20. The system of claim 17, further comprising:

means for executing compression on one or more of the bits of the flow;

means for terminating the TDM circuit corresponding to the silence signal; and

means for converting the TDM circuit to an asynchronous circuit using one or more internet protocol (IP) packets.

21. The system of claim 17, further comprising:

means for replacing one or more idle bits that correspond to the silence signal with no packets such that packets are not transmitted when idle sequence bits are being communicated on the TDM circuit.

22. Software embodied in a computer readable medium, the computer readable medium comprising code operable to:

accumulate a plurality of bits associated with a communications flow;

determine whether one or more of the bits correspond to a silence signal associated with a time division multiplexed (TDM) circuit that facilitates propagation of the flow; and

communicate a predefined silence pattern, in place of one or more of the bits, to a next destination when it is determined that one or more of the bits correspond to the silence signal.

23. The medium of claim 22, wherein the code is further operable to:

receive the predefined silence pattern at the next destination; and

identify that the predefined silence pattern corresponds to a silence signal and that the predefined silence pattern was communicated locally.

24. The medium of claim 22, wherein the code is further operable to:

separate a global system for mobile (GSM) signal corresponding to the flow such that the GSM signal is broken into multiple digital signaling zero (DSO) segments.

25. The medium of claim 22, wherein the code is further operable to:

execute compression on one or more of the bits of the flow;

terminate the TDM circuit corresponding to the silence signal; and

convert the TDM circuit to an asynchronous circuit using one or more internet protocol (IP) packets.