Traffic distribution in a wireless communication system

• US 6,801,519 B1
• Filed: 04/11/2000
• Issued: 10/05/2004
• Est. Priority Date: 04/11/2000
• Status: Expired due to Term

• Current Assignee: Sprint Spectrum LLC (Deutsche Telekom AG)
• Original Assignee: Sprint Communications Company LP (Deutsche Telekom AG)
• Inventors: Mangal, Manish
• Primary Examiner(s): Vu, Huy D.
• Assistant Examiner(s): NGUYEN, TOAN D
• Application Number:
  US09/546,677
• Time in Patent Office: 1,638 Days
• Field of Search: 370/329, 370/332, 370/341, 370/349, 370/395.21, 370/395.43, 455/450, 455/452, 455/464, 455/560, 455/561, 455/552.1
• US Class Current: 370/349
• CPC Class Codes: H04M 1/2535 adapted for voice communication over an Internet Protocol [IP] network Voice over Internet Protocol (VoIP) network equipment and services H04M7/006; implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP] H04L69/16
• CPC Class Codes: H04M 1/725 Cordless telephones user interfaces specially adapted therefor H04M1/724
• CPC Class Codes: H04M 1/72502 with one base station connected to a single line
• CPC Class Codes: H04M 1/72511 Searching for available channels
• CPC Class Codes: H04M 2250/02 including a Bluetooth interface
• CPC Class Codes: H04W 72/563 of the wireless resources
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: H04W 88/10 adapted for operation in multiple networks, e.g. multi-mode access points

Abstract

A wireless communication system using a media access control (MAC) layer comprising a subscriber unit system and a base station system. The base station system is configured to receive a request for a communication service, dynamically select between a first portion of the MAC layer corresponding to a first wireless transmission link using a licensed radio frequency and a second portion of the MAC layer corresponding to a second wireless transmission link using an unlicensed radio frequency, and exchange communications for the communication service over the selected one of the first portion and the second portion of the MAC layer. The subscriber unit system is configured to transmit the request for the communication service to the base station system and exchange the communications for the communication service over the selected one of the first portion and the second portion of the MAC layer.

Claims

1. A method for operating a wireless system using a media access control (MAC) layer, the method comprising:

receiving a request for a communication service;

in response to receiving the request, dynamically selecting between a first portion of the MAC layer corresponding to a first wireless transmission link that uses a licensed radio frequency and a second portion of the MAC layer corresponding to a second wireless transmission link that uses an unlicensed radio frequency; and

providing the requested communication service over the selected one of the first portion and the second portion of the MAC layer.

2. The method of claim 1 wherein dynamically selecting between the first portion and the second portion of the MAC layer further comprises:

determining a type of communication service requested;

determining a required quality of service for the requested communication service; and

identifying one of the first portion and the second portion of the MAC layer corresponding to the one of the first wireless transmission link and the second wireless transmission link that provides the required quality of service.

3. The method of claim 2 the method further comprising:

exchanging traffic between a communication device and a network system over the first wireless transmission link where the required quality of service is high.

4. The method of claim 3 the method further comprising:

exchanging traffic between the communication device and the network system over the second transmission link where the required quality of service is low.

5. The method of claim 2 wherein determining the required quality of service comprises:

determining delivery requirements for the requested communication service.

6. The method of claim 5 wherein one of the delivery requirements is time dependency.

7. The method of claim 5 wherein one of the delivery requirements is a need for real time communication.

8. The method of claim 5 wherein one of the delivery requirements is grade of service.

9. The method of claim 2 wherein the first wireless transmission link is a multipoint multichannel distribution service link.

10. The method of claim 2 wherein the first wireless transmission link is a personal communication service link.

11. The method of claim 2 wherein the first wireless transmission link is a millimeter wave link.

12. The method of claim 2 wherein the first wireless transmission link is a code division multiple access link.

13. The method of claim 2 wherein the first wireless transmission link is a time division multiple access link.

14. The method of claim 2 wherein the second transmission link is a national information infrastructure link.

15. The method of claim 1 wherein the communication service is an audio communication.

16. The method of claim 1 wherein the communication service is a video communication.

17. The method of claim 1 wherein the communication service is a data communication.

18. A software product comprising:

communication software operational when executed by a processor to direct the processor to receive a request for a communication service, dynamically select between a first portion of a media access control (MAC) layer corresponding to a first wireless transmission link using a licensed radio frequency and a second portion of the MAC layer corresponding to a second wireless transmission link using an unlicensed radio frequency, and direct an exchange of communications for the communication service over the selected one of the first portion and the second portion of the MAC layer; and

a software storage medium operational to store the communication software.

19. The software product of claim 18 wherein the communication software is operational when executed by the processor to direct the processor to:

determine a type of communication service requested;

determine a required quality of service for the requested communication service; and

identify one of the first portion and the second portion of the MAC layer corresponding to one of the first wireless transmission link and the second wireless transmission link that provides the required quality of service.

20. The software product of claim 19 wherein the communication software is operational when executed by the processor to direct the processor to:

exchange traffic between a communication device and a network system over the first transmission link where the required quality of service is high.

21. The software product of claim 20 wherein the communication software is operational when executed by the processor to direct the processor to:

exchange traffic between the communication device and the network system over the second transmission link where the required quality of service is low.

22. The software product of claim 19 wherein the communication software is operational when executed by the processor to direct the processor to:

determine delivery requirements for the requested communication service.

23. A wireless communication system using a media access control (MAC) layer, the wireless communication system comprising:

a base station system configured to receive a request for a communication service, dynamically select between a first portion of the MAC layer corresponding to a first wireless transmission link using a licensed radio frequency and a second portion of the MAC layer corresponding to a second wireless transmission link using an unlicensed radio frequency, and exchange communications for the communication service over the, selected one of the first portion and the second portion of the MAC layer; and

a subscriber unit system that is configured to transmit the request for the communication service to the base station system and exchange the communications for the communication service over the selected one of the first portion and the second portion of the MAC layer.

24. The wireless communication system of claim 23 wherein the subscriber unit system is configured to:

receive the request for the communication from a communication device; and

determine a type of communication service requested.

25. The wireless communication system of claim 24 wherein the base station system is configured to:

determine a required quality of service for the requested communication service; and

identify one of the first portion and the second portion of the MAC layer corresponding to one of the first wireless transmission link and the second wireless transmission link that provides the required quality of service.

26. The wireless communication system of claim 25 wherein the base station system is configured to exchange traffic between a communication device and a network system over the first wireless transmission link where the required quality of service is high.

27. The wireless communication system of claim 26 wherein the base station system is configured to exchange traffic between the communication device and the network system over the second transmission link where the required quality of service is low.

28. The wireless communication system of claim 26 wherein the base station system is configured to determine delivery requirements for the requested communication service.

29. The wireless communication system of claim 28 wherein the delivery requirement is time dependency.

30. The wireless communication system of claim 28 wherein the delivery requirement is a need for real time communication.

31. The wireless communication system of claim 28 wherein the delivery requirement is grade of service.

32. The wireless communication system of claim 26 wherein the first wireless transmission link is a multipoint multichannel distribution service link.

33. The wireless communication system of claim 26 wherein the first wireless transmission link is a personal communication service link.

34. The wireless communication system of claim 26 wherein the first wireless transmission link is a millimeter wave link.

35. The wireless communication system of claim 26 wherein the first wireless transmission link is a code division multiple access link.

36. The wireless communication system of claim 26 wherein the first wireless transmission link is a time division multiple access link.

37. The wireless communication system of claim 26 wherein the second transmission link is a national information infrastructure link.

38. The wireless communication system of claim 26 wherein the communication service is an audio communication.

39. The wireless communication system of claim 26 wherein the communication service is a video communication.

40. The wireless communication system of claim 26 wherein the communication service is a data communication.

41. The wireless communication system of claim 26 wherein the MAC layer further comprises:

request slots for reservation information.

42. The wireless communication system of claim 26 wherein the first portion of the MAC layer further comprises:

constant bit rate slots.

43. The wireless communication system of claim 26 wherein the first portion of the MAC layer further comprises:

variable bit rate slots.

44. The wireless communication system of claim 26 wherein the second portion of the MAC layer further comprises:

available bit rate slots.

45. The wireless communication system of claim 26 wherein the second portion of the MAC layer further comprises:

undefined bit rate slots.