Method of reducing resource assignment overhead in wireless communication systems

• US 6,453,151 B1
• Filed: 06/21/1999
• Issued: 09/17/2002
• Est. Priority Date: 06/21/1999
• Status: Expired due to Fees

• Current Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Original Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Inventors: Ramakrishna, Sudhir, Patel, Tejaskumar R., Kiang, T. Roger
• Primary Examiner(s): Hunter, Daniel
• Assistant Examiner(s): Gantt, Alan T.
• Application Number:
  US09/336,921
• Time in Patent Office: 1,184 Days
• Field of Search: 455/67.1, 455/67.3, 455/63, 455/67.4, 455/424, 455/425
• US Class Current: 455/67.11
• CPC Class Codes: H04B 17/24 with feedback of measurements to the transmitter
• CPC Class Codes: H04B 17/309 Measuring or estimating channel quality parameters
• CPC Class Codes: H04L 1/0002 by adapting the transmission rate
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/0027 Scheduling of signalling, e.g. occurrence thereof
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 52/24 using SIR [Signal to Interference Ratio] or other wireless path parameters
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 88/12 Access point controller devices

Abstract

A method is described to reduce the time required to assign the burst transmission parameters in a wireless communication system by autonomously sharing transmission and reception information among the components of the network. Information is autonomously provided from a remote subnetwork element to a controlling network element so the controlling network element may use the information to dynamically assign and update burst transmission parameters.

Claims

1. A wireless communication system, having a controller and a plurality of remote sites, said controller being operable with at least one remote site through a communications link, a method of managing system data comprising the steps of:

a. measuring system data at said at least one remote site; and

b. reporting said measured system data to said controller, wherein said reporting of measured system data is performed synchronously with data received at said at least one remote site via said communication link without instruction from said controller

c. wherein said controller operates to adjust transmission parameters for data transmitted to said at least one remote site as a function of said reported data.

2. The method of reporting system data as recited in claim 1, wherein steps a and b are iteratively repeated for said at least one remote site during a time interval.

3. The method of reporting system data as recited in claim 1, wherein steps a and b are iteratively repeated among substantially all of said remote sites within said system.

4. The method of reporting system data as recited in claim 1, wherein said measured system data includes received signal strength at said at least one remote site link.

5. The method of reporting system data as recited in claim 4 wherein measurement of said received signal strength is performed by measuring a level of a pilot signal transmitted to said at least one remote site.

6. The method of reporting system data as recited in claim 1, wherein the step of reporting said measured system data is performed on a periodic basis.

7. The method of reporting system data as recited in claim 1, wherein said communication link includes a forward link and a reverse link.

8. The method of reporting system data as recited in claim 6, wherein said periodic reporting basis is selected as a function of a rate of arrival of data via said communication link at said at least one remote site.

9. The method of reporting system data a recited in claim 8 wherein said reporting basis is less than said rate of arrival of data.

10. The method of reporting system data as recited in claim 7 wherein system data of said forward link includes data collected at each of said at least one remote sites.

11. The method of reporting system data as recited in claim 10 wherein system data of said forward link includes cumulative power history of each of said remote sites.

12. The method of reporting system data as recited in claim 7 wherein system data measured on said reverse link includes the Signal-to-Interference Ratio of each of said remote sites.

13. The method of reporting system data as recited in claim 10 wherein system data of said forward link includes received signal strength measured at each of said remote sites.

14. A method of dynamically managing system data in a wireless communication system, said wireless communication system being characterized by at least one base station and at least one mobile station, said mobile station being in communication with said base station through a communications link, said communication link having a forward link and a reverse link, the method comprising the steps of:

a. measuring, at said mobile station, base station forward link transmission parameters; and

b. reporting said transmission parameters to said at least one base station, wherein said reporting is performed synchronously with data received at said mobile station via said communications link without instruction from said at least one base station

c. wherein said controller operates to adjust transmission parameters for data transmitted to said at least one mobile station as a function of said reported data.

15. The method of reporting system data as recited in claim 14, wherein steps a and b are iteratively repeated for said at least one mobile station during a time interval.

16. The method of reporting system data as recited in claim 14, wherein steps a and b are iteratively repeated among substantially all of said mobile stations within said system.

17. The method of reporting system data as recited in claim 14 wherein said forward link transmission parameters include measured received signal strength.

18. In a wireless communication system, having a controller and a plurality of remote sites, said controller being operable with at least one remote site through a communications link which includes a forward link and reverse link, a method of managing system data comprising the steps of:

a. measuring system data at said at least one remote site;

b. reporting said measured system data to said controller, wherein said reporting of measured system date is performed on a periodic basis without instruction from said controller; and

wherein said period of reporting is a function of a rate of arrival of data transmitted to said at least one remote site; and

c. wherein said controller operates to adjust transmission parameters for data transmitted to said at least one remote site as a function of said reported data.

19. The method of reporting system data as recited in claim 18 wherein system data of said forward link includes cumulative power history of each of said remote sites.

20. The method of reporting system data as recited in claim 18 wherein system data of said forward link includes received signal strength measured at each of said remote sites.

21. A method of dynamically managing system data in a wireless communication system, said wireless communication system being characterized by at least one base station and at least one mobile station, said mobile station being in communication with said base station through a communications link, said communication link having a forward link and a reverse link, the method comprising of:

a. measuring, at said mobile station, base station forward link transmission parameters;

b. reporting said transmission parameters to said at least one base station, wherein said reporting is performed on a periodic basis without instruction from said at least one base station, wherein said period of reporting is a function of a rate of arrival of data transmitted to said least one mobile station;

c. wherein said controller operates to adjust transmission parameters for data transmitted to said at least one mobile station as a function of said reported data.

22. The method of reporting system data as recited in claim 21, wherein steps a and b are iteratively repeated for said at least one mobile station during a time interval.

23. The method of reporting system data as recited in claim 21, wherein steps a and b are iteratively repeated among substantially all of said mobile stations within said system.

24. The method of reporting system data as recited in claim 21 wherein said wireless communication system further includes a switching center, said switching center being in communication with said at least one base station, said method further comprising the steps of:

a. collecting said reported transmission parameter data at said at least one base station;

b. measuring said reported transmission parameters including signal strength measurements at said at least one base station corresponding to said at least one mobile stations; and

c. forwarding said reported transmission parameter data to said switching center, said reported transmission parameter data being forwarded without instruction from said switching center.

25. The method of reporting system data as recited in claim 24 wherein said reported transmission parameter data includes measured received signal strength at said mobile station.

26. The method of reporting system data as recited in claim 24, wherein steps a through c are iteratively repeated among substantially all of said base stations within said wireless communication system.