Server-side measurement of client-perceived quality of service

• US 7,185,084 B2
• Filed: 09/05/2001
• Issued: 02/27/2007
• Est. Priority Date: 09/05/2001
• Status: Expired due to Fees

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Reese, Robert J., Sirivara, Sudheer, McVeigh, Jeffrey S., Ferrise, Gianni G.
• Primary Examiner(s): Lim; Krisna
• Assistant Examiner(s): REILLY, SEAN M
• Application Number:
  US09/947,429
• Publication Number:
  US 20030046384A1
• Time in Patent Office: 2,001 Days
• Field of Search: 709/203, 709223-225, 709230-235, 703/21, 703/22
• US Class Current: 709/224
• CPC Class Codes: H04L 41/5006 Creating or negotiating SLA contracts, guarantees or penalties
• CPC Class Codes: H04L 43/50 Testing arrangements
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04L 67/01 Protocols

Abstract

Server-side determination of quality of service received by a client. Content is transmitted from the server to the client according to a protocol. During transmission, the protocol requires the client to periodically send the server statistics concerning the transmitting, e.g., lost packets, latency, or the like. The server simulates the network connection between the client and server based at least in part on the received statistics. The simulating allows the server to recreate, server-side, the content received by the client. The server may then compare what was sent to the client, versus the recreated received content, to determine a quality of service received by the client.

Claims

1. A method for a server-side determination of received quality of service, comprising:

transmitting content over a network;

receiving transmission statistics regarding the transmitted content;

simulating the network based at least in part on the transmission statistics;

estimating an effectiveness of the transmitting the content based at least in part on the simulated network;

determining an estimated transmission of content based at least in part on a selected one of the transmission statistics and the estimated effectiveness; and

comparing at least a portion of the content to at least a portion of the estimated transmission of content to determine a quality of service for transmitting the content.

2. The method of claim 1, wherein simulating the network comprising:

estimating data loss of the transmitting the content over the network.

3. The method of claim 1, wherein the transmitting the content is according to a protocol in which a receiver of the content is to periodically send transmission statistics regarding the transmitted content.

4. A method for a server-side determination of received quality of service, comprising:

transmitting content over a network;

receiving transmission statistics regarding the transmitted content;

simulating the network based at least in part on the transmission statistics;

estimating an effectiveness of transmitting the content based at least in part on the simulated network;

determining an estimated transmission of content based at least in part on a selected one of the transmission statistics and the estimated effectiveness; and

comparing a video feature of the content to at least a corresponding video feature of the estimated transmission of content to determine a quality of service for transmitting the content.

5. A method for determining received quality of service, comprising:

receiving content by at least one receiver;

determining by the at least one receiver transmission statistics for the content based at least in part on receiving the content; and

sending the transmission statistics to a machine communicatively coupled to a simulator for simulating transmission losses for the content received by the receiver based at least in part on the transmission statistics;

wherein the machine is configured to determine an estimated transmission of content based at least in part on the determined transmission effectiveness, and configured to compare a portion of the content to a corresponding portion of the estimated transmission of content so as to determine a quality of service.

6. The method of claim 5, wherein the content is received from the machine.

7. The method of claim 5, wherein the machine determines a transmission effectiveness for the content based at least in part on a simulated network.

8. The method of claim 5, further comprising:

wherein the machine is configured to determine an estimated transmission of content based at least in part on the transmission statistics; and

wherein the machine is configured to compare a portion of the content to a corresponding portion of the estimated transmission of content so as to determine a quality of service.

9. A system comprising:

a first machine configured to perform;

transmitting content over a network; and

receiving transmission statistics regarding the transmitted content;

a second machine configured to simulate the network based at least in part on the transmission statistics;

a third machine configured to estimate an effectiveness of the transmitting the content based at least in part on the simulated network, and to determine an estimated transmission of content based at least in part on the estimated effectiveness of the transmitting the contents

comparing at least a portion of the content to at least a portion of the estimated transmission of content to determine a quality of service for transmitting the content.

10. The system of claim 9, wherein selected ones of the second machine and the third machine are disposed within the first machine.

11. The system of claim 10, further comprising:

a fourth machine configured to perform;

receiving the content;

determining transmission statistics for the content based at least in part on receiving the content; and

sending the transmission statistics to the first machine.

12. An article, comprising:

a machine-accessible media having associated data, wherein the data, when accessed, results in a machine performing;

transmitting content over a network;

receiving transmission statistics regarding the transmitted content;

simulating the network based at least in part on the transmission statistics;

estimating an effectiveness of transmitting the content based at least in part on the simulated network;

determining an estimated transmission of content based at least in part on a selected one of the transmission statistics and the estimated effectiveness; and

comparing at least a portion of the content to at least a portion of the estimated transmission of content to determine a quality of service for the transmitting the content.

13. The article of claim 12 wherein the machine-accessible media further includes data, when accessed by the machine, results in the machine performing:

estimating data loss of the transmitting the content over the network.

14. The article of claim 12, wherein the transmitting of the content is according to a protocol in which a receiver of the content is to periodically send transmission statistics.

15. An article, comprising:

a machine-accessible media having associated data, wherein the data, when accessed, results in a machine performing;

transmitting content over a network;

receiving transmission statistics regarding the transmitted content;

simulating the network based at least in part on the transmission statistics; and

estimating an effectiveness of the transmitting the content based at least in part on comparing the simulated network with at least the transmitted content;

determining an estimated transmission of content based at least in part on a selected one of the transmission statistics and the estimated effectiveness; and

comparing a video feature of the content to at least a corresponding video feature of the estimated transmission of content to determine a quality of service for transmitting the content.

16. A machine accessible medium having instructions encoded thereon capable of directing one or more machines to perform:

receiving content by at least one receiver;

determining by the at least one receiver transmission statistics for the content based at least in part on receiving the content;

determining an estimated transmission of content based at least in part on a simulation of transmitting the content, the simulation based at least in part on the transmission statistics; and

comparing a portion of the content to a corresponding portion of the estimated transmission of content so as to determine a quality of service.

17. The machine accessible medium of claim 16, wherein the instructions are received from the machine.

18. The machine accessible medium of claim 16, wherein the machine determines a transmission effectiveness for the transmitted content based at least in part on the simulated network.

19. A machine accessible medium having instructions encoded thereon capable of directing the machine to perform:

receiving content by at least one receiver;

determining by the at least one receiver transmission statistics for the content based at least in part on receiving the content;

sending the transmission statistics to a machine communicatively coupled to a simulator for simulating the network based at least in part on the transmission statistics;

wherein the instructions further comprise instructions capable of directing the machine to determine an estimated transmission of content based at least in part on the transmission statistics; and

wherein the instructions further comprise instructions capable of directing the machine to compare a portion of the content to a corresponding portion of the estimated transmission of content so as to determine a quality of service.

20. A method for a server-side determination of received quality of service for a propagated signal, comprising:

propagating a signal comprising user perceptible content;

receiving propagation statistics regarding the propagated signal;

simulating the propagating the signal based at least in part on the propagation statistics;

estimating an effectiveness of propagating the signal based at least in part on the simulated propagating signal;

determining an estimated transmission of content based at least in part on a selected one of the propagation statistics and the estimated effectiveness; and

comparing at least a portion of the content to at least a portion of the estimated transmission of content to determine a quality of service for transmitting the content.

21. The method of claim 20, further comprising:

wherein simulating the propagating the signal comprises estimating data loss of the propagating the signal, and wherein propagating the signal is according to a protocol in which a receiver of the propagated signal is to periodically send propagation statistics regarding the received propagated signal.

22. A method for a server-side determination of received quality of service, comprising:

transmitting content over a network;

receiving transmission statistics regarding the transmitted content;

determining an estimated received content based at least in part on a simulation of transmitting the content, the simulation based at least in part on the transmission statistics;

comparing at least a portion of said transmitted content with at least a portion of the estimated received content to determine a quality of service for the transmitting the content.

23. The method of claim 22, wherein determining the received content comprises estimating data loss for said transmitting the content.