Telecommunication network utilizing a quality of service protocol

• US 6,038,452 A
• Filed: 08/29/1997
• Issued: 03/14/2000
• Est. Priority Date: 08/29/1997
• Status: Expired due to Term

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Nortel Networks Corporation
• Inventors: Strawczynski, Leo, Gage, Bill W. A., Rabipour, Rafi
• Primary Examiner(s): TROST IV, WILLIAM GEORGE
• Application Number:
  US08/921,278
• Time in Patent Office: 928 Days
• Field of Search: 455/63, 455/67.1, 455/67.3, 455/403, 455/422-425, 455/446-447, 455/461, 455/466, 455/501, 455/507, 455/522, 455/560, 455/574, 370/338, 370/349, 370/389
• US Class Current: 455/446
• CPC Class Codes: H04W 52/24 using SIR [Signal to Interference Ratio] or other wireless path parameters

Abstract

The present invention provides novel systems and methods for improving the voice quality of wireless-to-wireless calls or wireless-to-fixed terminal calls. This disclosure describes methods and apparatuses to determine and control the quality of service objectives in a telecommunication network involving at least one wireless terminal.

Claims

1. A communication network, comprising:

a) a plurality of links capable of transporting data, at least one of said links being a wireless link, in the course of a given call, selected ones of said plurality of links being connected to one another to establish a pathway for data to be transported through said network, said pathway being characterized by an end-to-end error rate;

b) a control system operative for altering at least one parameter of said network that influences the end-to-end error rate of the pathway established in the course of a given call, in dependence upon a number of wireless links contained in the pathway over which data associated with the given call is transported through said network.

2. A communication network as defined in claim 1, wherein said data is in digital transmission format.

3. A communication network as defined in claim 1, wherein said control system is located in a mobile switching center of said communication network.

4. A communication network as defined in claim 1, wherein the pathway established in the course of a given call includes a wireless link established between a base station and a wireless terminal.

5. A communication network as defined in claim 1, wherein the pathway established in the course of a given call includes a wireline link.

6. A communication network as defined in claim 5, wherein said wireline link is part of a PSTN.

7. A communication network as defined in claim 5, wherein said wireline link is part of an ISDN.

8. A communication network as defined in claim 5, wherein said wireline link is part of an Internet network.

9. A communication network as defined in claim 1, wherein the pathway established in the course of a given call includes two wireless links.

10. A communication network as defined in claim 1, wherein said control system utilizes out-of-band signaling to receive and issue messages to control said parameters of the network.

11. A communication network as defined in claim 1, wherein at least one of said parameters is the power output level of a transmitter in a given wireless link.

12. A communication network as defined in claim 1, wherein at least one of said parameters is the type Forward error correction (FEC) techniques for data packets transported over a given link.

13. A communication network as defined in claim 1, wherein at least one of said parameters is the frequency reuse of the network.

14. A communication network as defined in claim 1, wherein said control system includes:

a) an input for receiving data indicative of a number of wireless links comprised in the pathway established in a course of a given call;

b) power output level determination means coupled to said input for determining a power output level of a transmitter in one of the wireless links comprised in the pathways established in the course of the given call in dependence of the number of wireless links involved in the pathway established in the course of the given call;

c) an output coupled to said power output level determination means for generating data indicative of the power output level determined by said power output level determination means.

15. A communication network, comprising:

a) a plurality of links capable of transporting data, at least one of said links being a wireless link, in a course of a given call selected ones of said plurality of links being connected to one another to establish a pathway for data to be transported through said network;

b) a control system for regulating a power output level of a transmitter in a given wireless link of said network, said control system providing means for setting said transmitter at a first setting when said given link is comprised in a pathway including N wireless links and at a second setting when said given link is comprised in a pathway including M wireless links, where M<

N and in said first setting said transmitter operates at a higher power output level than in said second setting.

16. A communication network as defined in claim 15, wherein said control system is located in a mobile switching center of said communication network.

17. A communication network as defined in claim 15, wherein the pathway established in the course of a given call includes a wireless link established between a base station and a wireless terminal.

18. A communication network as defined in claim 15, wherein the pathway established in the course of a given call includes a wireline link.

19. A communication network as defined in claim 18, wherein said wireline link is part of a PSTN.

20. A communication network as defined in claim 18, wherein said wireline link is part of an ISDN.

21. A communication network as defined in claim 18, wherein said wireline link is part of an Internet network.

22. A communication network as defined in claim 15, wherein the pathway established in the course of a given call includes two wireless links.

23. A communication network as defined in claim 15, wherein said control system utilizes out-of-band signaling to issue a message to control the power output level of the transmitter.

24. A communication network, comprising:

a) a plurality of links capable of transporting data, at least one of said links being a wireless link, in a course of a given call selected ones of said plurality of links being connected to one another to establish a pathway for data to be transported through said network;

b) a control system for regulating a power output level of a transmitter in a given wireless link of said network, said control system providing means for setting said transmitter at a first setting when said given link is comprised in a pathway established in a course of a wireless-to-wireless call and at a second setting when said given link is comprised in a pathway established in a course of a wireless-to-wireline call, in said first setting said transmitter operates at a higher power output level than in said second setting.

25. A communication network as defined in claim 24, wherein said control system is located in a mobile switching center of said communication network.

26. A communication network as defined in claim 24, wherein the pathway established in the course of a given call includes a wireless link established between a base station and a wireless terminal.

27. A communication network as defined in claim 24, wherein the pathway established in the course of a given call includes a wireline link.

28. A communication network as defined in claim 27, wherein said wireline link is part of a PSTN.

29. A communication network as defined in claim 27, wherein said wireline link is part of an ISDN.

30. A communication network as defined in claim 27, wherein said wireline link is part of an Internet network.

31. A communication network as defined in claim 24, wherein the pathway established in the course of a given call includes two wireless links.

32. A communication network as defined in claim 24, wherein said control system utilizes out-of-band signaling to issue a message to control the power output level of the transmitter.

33. A communication network control processor comprising a processing unit and a storage unit for storing instructions for operation of said processing unit, said instructions implementing functional blocks, said control processor being capable of regulating at least one parameter of a communication network that includes a plurality of links capable of transporting data packets, at least one of said links being a wireless link, in a course of a given call selected ones of said plurality of links being connected to one another to establish a pathway for data packets to be transported through said network, said functional blocks including:

a) an input for receiving data indicative of a number of wireless links comprised in the pathway established in a course of a given call;

b) power output level determination unit coupled to said input for determining a power output level of a transmitter in one of the wireless links comprised in the pathway established in the course of the given call in dependence of the number of wireless links involved in the pathway;

c) an output coupled to said power output level determination unit for generating data indicative of the power output level determined by said power output level determination means.

34. A method for controlling a communication network to reduce a frame error rate, said network comprising:

a) a plurality of links capable of transporting data packets, at least one of said links being a wireless link, in a course of a given call selected ones of said plurality of links being connected to one another to establish a pathway for data packets to be transported through said network;

b) said method comprising the steps of;

i) establishing a pathway through said network to allow data packets to be transported from one terminal to another terminal;

ii) identifying a number of wireless links in the pathway established at step i);

iii) adjusting an output power level of a transmitter in at least one of the wireless links comprised in the pathway identified at step i) in dependence of a number of wireless links in the pathway identified at step ii).

35. A method as defined in claim 34, wherein the pathway established in the course of a given call includes a wireless link established between a base station and a wireless terminal.

36. A method as defined in claim 34, wherein the pathway established in the course of a given call includes a wireline link.

37. A method as defined in claim 36, wherein said wireline link is part of a PSTN.

38. A method as defined in claim 36, wherein said wireline link is part of an ISDN.

39. A method as defined in claim 36, wherein said wireline link is part of an Internet network.

40. A method as defined in claim 34, wherein the pathway established in the course of a given call includes two wireless links.