Bandwidth and Latency Controller

• US 20090240808A1
• Filed: 03/21/2008
• Published: 09/24/2009
• Est. Priority Date: 03/21/2008
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Chen, Rong Chao
• Granted Patent: US 8,255,536 B2
• Time in Patent Office: Days
• US Class Current: 709/226
• CPC Class Codes: H04L 41/0896 Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities flow or congestion control using dynamic resource allocation, e.g. in-call renegotiation, H04L47/76
• CPC Class Codes: H04L 43/0882 Utilisation of link capacity
• CPC Class Codes: H04L 47/32 by discarding or delaying data units, e.g. packets or frames
• CPC Class Codes: H04L 47/70 Admission control; Resource allocation
• CPC Class Codes: H04L 47/803 Application aware
• CPC Class Codes: H04L 47/808 User-type aware
• CPC Class Codes: H04L 47/822 Collecting or measuring resource availability data
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: H04L 67/61 taking into account QoS or priority requirements

Abstract

Systems and methods described relate to controlling bandwidth and latency in a remote computing environment. A controller establishes a remote session between a client and a remote server. Data transfer between the client and the remote server is routed through the controller. The controller regulates bandwidth consumption and latency in the remote session by simulating a session bandwidth that can be less than the available bandwidth and by injecting delays into data packets transferred in the remote session. Such systems and methods can be used to prioritize remote client sessions and test deployment of applications in a remote computing environment.

Claims

1. A server computer comprising:

a memory;

a processor operatively coupled to the memory;

a controller in the memory, that controls bandwidth distribution and latency in a remote computing environment, wherein the controller includes a bandwidth allocator that determines size of available physical bandwidth and a predetermined size of bandwidth that may be allocated to client devices in the remote computing environment, wherein the controller injects delays to data packets that are transferred between the server computer and the client devices.

2. The server computer of claim 1, wherein the predetermined size of bandwidth is one of a predetermined percentage of available bandwidth or a numerical value of bandwidth size.

3. The server computer of claim 1, wherein the bandwidth allocator allocates session bandwidth as the predetermined size of bandwidth is allocated as session bandwidth, if the predetermined size of bandwidth is less than available physical bandwidth.

4. The server computer of claim 1, wherein the bandwidth allocates determines privileges associated with the client devices and allocates session bandwidth based on the privileges.

5. The server computer of claim 1, wherein the controller sets up path of communication between the server computer and the client devices through the controller.

6. The server computer of claim 1, wherein the controller includes delay injectors that inject the delays into the data packets.

7. The server computer of claim 1, wherein the controller monitors data traffic to track applications deployed in a remote session between the server computer and the client devices.

8. The server computer of claim 7, wherein the bandwidth allocator allocates session bandwidth based on an application that is deployed from the server computer to the client devices.

9. The server computer of claim 1, establishes a session with a particular client device by performing one of the following:

opening a new port establishing the session on a part used by a previously established remote session.

10. A method for allocating bandwidth in a remote computing environment comprising:

receiving a request from a client to establish connection;

establishing connection to the client;

determining available bandwidth for a remote session to the client;

determining control settings corresponding to the client as to predetermined bandwidth;

allocating session bandwidth to the remote session based on the predetermined bandwidth and available bandwidth; and

forwarding data traffic in the remote session to the client.

11. The method of claim 10, wherein the establishing includes connecting to a new port or a previously opened port.

12. The method of claim 10, wherein the determining control settings includes storing various control settings form which the predetermined bandwidth can be ascertained.

13. The method of claim 10, wherein the forwarding is through a path regulated by a controller.

14. The method of claim 10 further comprising receiving bandwidth and latency settings for the remote session, and applying the bandwidth and latency settings to the remote session.

15. The method of claim 14 further comprising testing stability of an application remoted in the remote session based on the bandwidth and latency settings.

16. A method for regulating bandwidth and latency comprising:

receiving a request for deploying an application;

determining control settings as to the application;

regulating as to session bandwidth associated with a remote session with the server computer; and

injecting delays data packets transferred during the remote session.

17. The method of claim 16, wherein the determining includes determining session bandwidth allocated to the remote session, and resource requirement of the application.

18. The method of claim 16, wherein the determining includes allocating a higher session bandwidth while the application is deployed.

19. The method of claim 16 further comprising receiving bandwidth and latency settings for the remote session, and applying the bandwidth and latency settings to the remote session.

20. The method of claim 19 further comprising testing stability of an application remoted in the remote session based on the bandwidth and latency settings.