Cell level congestion policy management

• US 20030095526A1
• Filed: 11/07/2002
• Published: 05/22/2003
• Est. Priority Date: 11/07/2001
• Status: Active Grant

• Current Assignee: NetScout Systems Incorporated
• Original Assignee: Inet Technologies, Inc. (Fortive Corp.)
• Inventors: Govindarajan, Rangaprasad, Froehlich, Robert W., Shanbhag, Vyankatesh, Pathak, Jogen K.
• Granted Patent: US 8,004,969 B2
• Time in Patent Office: Days
• US Class Current: 370/338
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/2416 Real-time traffic
• CPC Class Codes: H04L 47/2433 Allocation of priorities to traffic types
• CPC Class Codes: H04L 47/2458 Modification of priorities while in transit
• CPC Class Codes: H04L 47/2475 for supporting traffic characterised by the type of applications
• CPC Class Codes: H04L 47/2491 Mapping quality of service [QoS] requirements between different networks
• CPC Class Codes: H04W 28/02 Traffic management, e.g. flow control or congestion control
• CPC Class Codes: H04W 72/54 based on quality criteria
• CPC Class Codes: H04W 72/543 based on requested quality, e.g. QoS
• CPC Class Codes: H04W 72/569 of the traffic information
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]

Abstract

A system and method for transmitting data packets to a wireless client is shown. The data packets are received by a wireless content switch in the wireless network. The wireless content switch determines a quality of service value for the wireless client. The wireless content switch assigns the priority of transmission for the data packet based on the assigned quality of service value. The data packet is transmitted according to the priority.

Claims

1. A method of transmitting data packets to a wireless client, said method comprising:

receiving a data packet for a first wireless client; and

determining a quality of service value for the data packet;

assigning a priority for the data packet based on the quality of service value;

transmitting the data packet according to the priority.

2. The method of claim 1, wherein the step of determining the quality of service value includes determining a cell quality.

3. The method of claim 2, wherein the step of determining a cell quality includes determining the quantity of attached subscribers, the quantity of active sessions, the time of day, cell capacity, requested payload size and the radio link quality.

4. The method of claim 1, wherein receiving the data packet further comprises receiving a data packet with an original radio priority.

5. The method of claim 4, wherein receiving the data packet with an original radio priority further comprises:

receiving the data packet with an original radio priority based on a quality of service parameter.

6. The method of claim 1, wherein assigning a priority for the data packet based on the quality of service value includes assigning a priority from a look-up table.

7. The method of claim 1, wherein determining a quality of service value for the data packet includes determining a quality of service value based on the quality of service parameter associated with the wireless client and type of service parameter.

8. The method of claim 7 further comprises determining the quality of service value based upon a cell quality.

9. The method of claim 7, wherein determining the type of service parameter includes determining the identity of the wireless client and retrieving the quality of service parameter associated with the wireless client.

10. The method of claim 7, wherein determining a quality of service value for the data packet based on the quality of service parameter associated with the wireless client and type of service parameter further comprises examining a transmission or application control protocol layer of the data packet.

11. The method of claim 10, wherein the two or more parameters are from two or more Open Systems International (OSI) layers.

12. A wireless content switch for transmitting data packets to a wireless client, said wireless content switch comprising:

an upstream port for receiving a data packet for a first wireless client;

a bus coupled to the upstream port;

a downstream port coupled to the bus, the downstream port for transmitting the data packet;

memory coupled to the bus, the memory for storing executable code including a quality of service algorithm; and

a processor for executing the executable code, the code, when executed performing the steps of;

receiving a data packet for a first wireless client; and

determining a quality of service value for the data packet;

assigning a priority for the data packet based on the quality of service value;

transmitting the data packet according to the priority.

13. The wireless content switch of claim 12, wherein the step of determining the quality of service value includes determining a cell quality.

14. The wireless content switch of claim 13, wherein the step of determining a cell quality includes determining the quantity of attached subscribers, the quantity of active sessions, the time of day, cell capacity, requested payload size or demand, and the radio link quality.

15. The wireless content switch of claim 13, wherein the step of determining the quality of service value further includes determining a quality of service value based on the quality of service parameter associated with the wireless client and type of service parameter.

16. The wireless content switch of claim 12, wherein the upstream port receives the data packet with an original radio priority based on a quality of service parameter.

17. The wireless content switch of claim 12, wherein the memory stores a plurality of records, each of said plurality of records associated with a wireless client, each of said plurality of records comprising:

a wireless client internet protocol (IP) address identifier for identifying an IP address for the wireless client associated with the record; and

a wireless client quality of service identifier for identifying the quality of service for the wireless client associated with the record.

18. The wireless content switch of claim 17, wherein the executable code, when executed determining the type of service parameter by examining a transmission control protocol layer of the data packet.