System and method for placing wireless calls on an internet protocol based local area network based upon quality of service conditions

• US 6,728,215 B1
• Filed: 12/30/1998
• Issued: 04/27/2004
• Est. Priority Date: 12/30/1998
• Status: Expired due to Term

• Current Assignee: Ericsson, Inc. (Telefonaktiebolaget LM Ericsson)
• Original Assignee: Ericsson, Inc. (Telefonaktiebolaget LM Ericsson)
• Inventors: Bhatia, Ranjit, Alperovich, Vladimir
• Primary Examiner(s): Nguyen, Steven H. D
• Assistant Examiner(s): DUONG, DUC T
• Application Number:
  US09/224,215
• Time in Patent Office: 1,945 Days
• Field of Search: 370/252, 370/328, 370/329, 370/338, 370/347, 370/352, 370/353, 370/400, 370/401, 370/447, 370/448, 370/449, 370/229, 370/230, 370/231, 370/232, 370/233, 370/234, 370/235, 370/236, 370/468, 455/509, 455/512
• US Class Current: 370/252
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 28/24 Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
• CPC Class Codes: H04W 48/18 Selecting a network or a communication service
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

A telecommunications system and method is disclosed for allowing a mobile station to determine whether or not to place a wireless call through an internet protocol (IP) based local area network (LAN) based upon broadcasted Quality of Service (QOS) information. The gatekeeper within the IP based LAN has access to the QOS information and periodically sends the QOS to the base station controller (BSC) functionality within the access node (AN) of the IP based LAN. The BSC functionality then transmits the QOS parameter on the System Information message via the base transceiver station (BTS) to the mobile stations served by the BTS. The mobile stations receive this QOS information and use this QOS information to decide upon a transport method to complete outgoing wireless calls.

Claims

1. A local area network based wireless telecommunications system, comprising:

a traffic node for monitoring an amount of allocated bandwidth on said local area network and generating a quality of service parameter dependent thereon;

at least one mobile station storing a quality of service threshold therein, said at least one mobile station further having therein means for selecting one of a plurality of networks to place a call on based upon said quality of service parameter, said means for selecting comparing said received quality of service parameter with said quality of service threshold and selecting said local area network for said call when said received quality of service parameter is below said quality of service threshold; and

a base station system in wireless communication with said plurality of mobile stations, said traffic node sending said quality of service parameter to said base station system, said base station system broadcasting said quality of service parameter to said plurality of mobile stations.

2. The telecommunications system of claim 1, wherein said traffic node is a gatekeeper.

3. The telecommunications system of claim 1, wherein said base station system comprises:

base station controller functionality within an access node associated with said local area network; and

a base transceiver station.

4. The telecommunications system of claim 3, further comprising:

mobile switching center functionality within said access node in communication with said base station controller functionality.

5. The telecommunications system of claim 4, wherein said traffic node sends said quality of service parameter to said base station controller functionality via said mobile switching center functionality.

6. The telecommunications system of claim 5, wherein said base station controller functionality transmits said quality of service parameter to said at least one mobile station over a System Information message via said base transceiver station.

7. The telecommunications system of claim 1, wherein said quality of service parameter comprises the percentage of the total bandwidth allocated.

8. The telecommunications system of claim 7, wherein said comparison means instructs said at least one mobile station to display options on a display of said at least one mobile station when said receded quality of service parameter is above said stored quality of service threshold.

9. The telecommunications system of claim 8, wherein said options comprise a list of alternative networks to use in placing said call.

10. The telecommunications system of claim 9, wherein said means for selecting is responsive to an input based upon said list provided by a mobile subscriber associated with said at least one mobile station.

11. The telecommunications system of claim 10, wherein said at least one mobile station further comprises:

at least one function key to provide said input.

12. The telecommunications system of claim 1, wherein said traffic node stores a quality of service threshold value therein, said traffic node comparing said quality of service parameter with said quality of service threshold value, said quality of service parameter being transmitted to said at least one mobile station when said quality of service parameter exceeds said quality of service threshold value.

13. The telecommunications system of claim 1, wherein said quality of service parameter comprises:

a first value and a second value.

14. The telecommunications system of claim 1, wherein said traffic node derives charging information from said quality of service parameter, said charging information being broadcast to said plurality of mobile stations.

15. The telecommunications system of claim 1, wherein said plurality of networks comprises:

said local area network and at least one of a Public Land Mobile Network and an additional local area network.

16. A method for allowing a plurality of mobile stations to select one of a plurality of networks to use for placing calls based upon quality of service information, said method comprising the steps of

monitoring, by a traffic node associated with a local area network based wireless telecommunications system, an amount of allocated bandwidth on said local area network;

generating, by said traffic node, a quality of service parameter based upon the amount of allocated bandwidth;

broadcasting said quality of service parameter to a given one of said plurality of mobile stations from a base station system associated with said local area network;

selecting, by said given mobile station, a network to place a call on using said quality of service parameter; and

placing, by said given mobile station, said call within said local area network when said received quality of service parameter is below said quality of service threshold.

17. The method of claim 16, wherein said base station system comprises base station controller functionality within an access node associated with said local area network and a base transceiver station, said access node having mobile switching center functionality therein, and further comprising the step of:

sending, by said traffic node, said quality of service parameter to said bass station controller functionality within said access node via said mobile switching center functionality within said access node.

18. The method of claim 17, wherein said step of broadcasting is performed by said base station controller functionality transmitting said quality of service parameter to said given mobile station over a System Information message via said base transceiver station serving said mobile station.

19. The method of claim 16, wherein said step of selecting further comprises the steps of:

storing, by said given mobile station, a quality of service threshold in a memory therein; and

comparing, by said given mobile station, said received quality of service parameter with said stored quality of service threshold.

20. The method of claim 19, wherein said step of selecting further comprises the step of:

displaying a list of alternative networks to use in placing said call on a display of said given mobile station when said received quality of service parameter is above said stored quality of service threshold.

21. The method of claim 20, wherein said selected network is one of said displayed alternative networks, and further comprising the step of:

establishing, by said given mobile station, a connection with said selected alternative network in order to place said call.

22. The method of claim 16, wherein said step of broadcasting further comprises the steps of:

storing, within said traffic node, a quality of service threshold value;

comparing, by said traffic node, said quality of service parameter with said quality of service threshold value; and

broadcasting said quality of service parameter when said quality of service parameter exceeds said quality of service threshold value.

23. A traffic node within a local area network based wireless telecommunications system, comprising:

a memory for storing a quality of service threshold value therein;

means for monitoring an amount of allocated bandwidth on said local area network;

means for generating a quality of service parameter based upon the amount of allocated bandwidth;

means for comparing said quality of service parameter with said quality of service threshold value; and

means for sending said quality of service parameter to a base station system within said local area network for transmission of said quality of service parameter over an air interface when said quality of service parameter exceeds said quality of service threshold value.