Adaptive bandwidth utilization for telemetered data

• US 7,782,789 B2
• Filed: 09/23/2004
• Issued: 08/24/2010
• Est. Priority Date: 09/23/2004
• Status: Expired due to Fees

• Current Assignee: Harris Corporation (L3Harris Technologies, Inc.)
• Original Assignee: Harris Corporation (L3Harris Technologies, Inc.)
• Inventors: Stultz, Robert D., Kizzort, Bradford L.
• Primary Examiner(s): LY, ANH VU H
• Application Number:
  US10/948,035
• Publication Number:
  US 20060062156A1
• Time in Patent Office: 2,161 Days
• Field of Search: 370/252
• US Class Current: 370/252
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/38 by adapting coding or compression rate
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/752 adapting media to network capabilities
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04L 69/326 in the transport layer [OSI layer 4] H04L69/16 takes precedence
• CPC Class Codes: H04L 69/327 in the session layer [OSI layer 5]
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04M 11/002 with telemetering systems telemetering in general G08C

Abstract

A method (400) for optimizing bandwidth utilization in a communications network (100). The communications network can include a data source (105) and a data client (110). Responsive to a measurement of at least one communication parameter (120) of a commutated bitstream (115) which is transmitted to the client, the data source can change a commutation format of the commutated bitstream. The communication parameters can include a data receive time (T_Rx), a data latency and/or an effective receive data rate (D_Eff) of the commutated bitstream. The communication parameters can be transmitted to the data source as telemetry. The change of commutation format can occur in an open systems interconnection (OSI) layer such as a session layer and/or a transport layer.

Claims

1. A method for optimizing bandwidth utilization in a communications network comprising:

responsive to a measurement of a plurality of communication parameters of a commutated bitstream which is transmitted from a data source to a data client, determining a data rate difference and a data latency at the data client;

selecting a new commutation format definition at the data source based on said data rate difference and a comparison of the data latency to a reference data latency value; and

formatting the commutated bitstream at the data source with the new commutation format definition,

wherein the plurality of communication parameters comprise an effective receive data rate (D_Eff) of the commutated bitstream and a data receive time (T_Rx) measured by said data client, the data rate difference determined at said data client by comparing the effective receive data rate (D_Eff) to a transmit data rate (D_TX) measured by said data source, and said data latency determined by comparing the data receive time (T_RX) to a data transmit time (T_Tx).

2. A data source comprising:

a commutation engine that, in response to a measurement of at least one communication parameter of a commutated bitstream, determines a data rate difference, selects a new commutation format definition based on the data rate difference and a comparison of a measured data latency to a reference data latency, and formats the commutated bitstream with the new commutation format definition;

wherein the at least one communication parameter comprises an effective receive data rate (D_Eff) of the commutated bitstream measured by a data client, and wherein the data rate difference is determined by comparing the effective received data rate (D_Eff) to a transmit data rate (D_TX) measured by said data source, wherein said data latency is determined by comparing a data receive time to a data transmit time.

3. A communications network comprising:

a data source comprising a commutation engine; and

a data client comprising a decommutation engine;

wherein the data client measures at least one communication parameter of a commutated bitstream received from the data source and transmits the at least one communication parameter to the data source, wherein the at least one communication parameter comprises an effective receive data rate (D_Eff) of the commutated bitstream;

wherein responsive to receiving the at least one communication parameter, the data source compares an effective received data rate (D_Eff) to a transmit data rate (D_TX) measured by said data source to determine a data rate difference, selects a new commutation format definition based on the data rate difference and a comparison of a data latency to a reference data latency value, and formats the commutated bitstream with the new commutation format definition, wherein said data latency is determined by comparing a data receive time to a data transmit time.