Measurement radio system for producing operating information for traffic radios

• US 6,535,733 B1
• Filed: 08/31/1998
• Issued: 03/18/2003
• Est. Priority Date: 08/31/1998
• Status: Expired due to Term

• Current Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Original Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Inventors: Seymour, James Paul, Tsai, Sheng-Jen, Matusevich, Alex, Tsamutalis, Chris Constantine, Murphy, Myles Patrick
• Primary Examiner(s): Le, Thanh Cong
• Assistant Examiner(s): LE, LANA N
• Application Number:
  US09/143,667
• Time in Patent Office: 1,660 Days
• Field of Search: 455/424, 455/561, 455/562, 455/67.1, 455/277.2
• US Class Current: 455/424
• CPC Class Codes: H04B 7/04 using two or more spaced independent antennas
• CPC Class Codes: H04W 36/30 by measured or perceived connection quality data
• CPC Class Codes: H04W 72/54 based on quality criteria
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A measurement radio system uses a measurement radio to scan active channels of a base station and produce operating information for the traffic radios servicing the active channels. The measurement radio can produce operating information, such as signal strength, bit error rate (BER), frame error rate (FER) and signal to interference ratio (C/I), which is used to determine whether to change the manner in which the traffic radio is servicing the active channel. For example, if the measurement radio can switch between different sets of antennas, the measurement radio can scan an active voice/data channel using a different set of antennas than the traffic radio is using to service the active channel and determine operating information related to the signal received over the active channel using the different set of antennas. The traffic radio can use the operating information to determine whether to hand off the active channel to the different set of antennas. The measurement radio can determine operating information, such as operating coefficients, parameters or settings, to change how the traffic radio services the active channel.

Claims

1. A method of providing wireless communications over an active channel, said method comprising the steps of:

receiving said active channel by a measurement radio of said base station using a first antenna set and operating parameters;

performing measurements on said active channel received by said measurement radio with said first antenna set and said operating parameters;

determining from said measurements operating parameters for servicing said active channel using said first antenna set; and

providing said determined operating parameters from the measurement radio to a traffic radio to use in communications over said active channel by said traffic radio using said first antenna set.

2. The method of claim 1 wherein said step of receiving said active channel by said measurement radio includes the step of:

selecting different sets of antennas for receiving said active channel by said measurement radio.

3. The method of claim 2 wherein said step of performing further including the step of:

using said different sets of antennas for performing said measurements of said active channel.

4. The method of claim 3 further including the steps of:

changing by said traffic radio from a second antenna set to said first antenna set to service said active channel; and

using said determined operating parameters for said traffic radio to service said active channel using said first antenna set.

5. The method of claim 4 wherein said step of providing further includes the step of:

sending said determined operating parameters to dedicated storage locations for said traffic radio.

6. The method of claim 1 further including the step of:

using as said operating parameters operating settings which include at least one of automatic gain control (AGC) settings, filter coefficients, equalizer coefficients and operating coefficients.

7. The method of claim 1 further including the step of:

using as said operating parameters a parameter related to delay spread of said active channel using said first antenna set.

8. The method of claim 1 wherein said step of performing measurements further including:

performing measurements on signals received from a wireless terminal over said active channel.

9. The method of claim 1 wherein said step of performing measurements including the step of:

performing measurements on signals transmitted by said traffic radio over said traffic channel.

10. The method of claim 9 includes the step of:

using said determined operating parameters to change phase, amplitude, or power of transmissions from said traffic radio over said active channel.

11. The method of claim 1 includes the step of:

using as said operating parameters a weight for an infinite impulse response filter for said traffic radio.

12. The method of claim 1 includes the step of:

using as said operating parameters a parameter related to mobile terminal speed.

13. The method of claim 12 includes the step of:

using said determined operating parameters in determining whether said traffic radio is to use equalization or differential detection.

14. A measurement radio system comprising:

traffic radios which service active voice/data channels; and

a measurement radio configured to receive an active voice/data channel using a first antenna set and operating parameters to perform measurements of said active voice/data channel and determine from said measurements operating parameters for servicing said active voice/data channel using said first antenna set, said measurement radio providing said determined operating parameters to a traffic radio to use in communications over said active channel by said traffic radio using said first antenna set.

15. The system of claim 14 comprising:

a plurality of antennas for said traffic radios to service said voice/data channels; and

said measurement radio scans said active voice/data channel using different sets of said plurality of antennas.

16. The system of claim 15 wherein said traffic radio switches from a second antenna set to said first antenna set to service said active channel, and said determined operating parameters are provided for said traffic radio to service said active channel using said first antenna set.

17. The system of claim 14 wherein said measurement radio is coupled to a radio communications bus which provides to said traffic radio said determined operating parameters.

18. The system of claim 14 wherein said measurement radio is coupled to a radio communications bus and is configured to provide determined operating parameters for said traffic radio to dedicated storage locations for said traffic radio.

19. The system of claim 14 wherein said measurement radio configured to perform measurements on signals received from a wireless terminal over said active channel.

20. The system of claim 14 wherein said measurement radio is configured to perform measurements on signals transmitted by said traffic radio over said active channel.

21. The system of claim 14 wherein said measurement radio is configured to determine delay spread information for said active channel.

22. The system of claim 14 wherein said measurement radio is configured to determine mobile terminal speed information for the mobile terminal on said active channel.

23. The system of claim 14 wherein said determined operating parameters include operating settings which include at least one of automatic gain control (AGC) settings, filter coefficients, equalizer coefficients and operating coefficients.

24. The system of claim 14 wherein said determined operating parameters includes a weight for an infinite impulse response filter for said traffic radio.

25. The system of claim 14 wherein said determined operating parameters are used in determining whether said traffic radio is to use equalization or differential detection.

26. The system of claim 14 wherein said determined operating parameters are used to change phase, amplitude, or power of transmissions from said traffic radio over said active channels.