Mobile equipment based filtering for packet radio service (PRS)

US 20080207134A1
Filed: 03/26/2008
Published: 08/28/2008
Est. Priority Date: 12/09/1999
Status: Active Grant

First Claim

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1-20. -20. (canceled)

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Abstract

A method for operating a mobile equipment (ME 10) in a wireless network (12) includes receiving from a wireless network a parameter that is indicative of a signal quality experienced by the ME, such as by determining a speed of the ME; calculating in the ME an indication of link quality, the calculation employing a filtering operation having a filter length that is a function of the determined parameter, such as speed or derivative of the speed of the ME; and reporting the calculated indication of link quality to the wireless network. The wireless network derives an indication of ME speed and transmits the speed indication to the ME using a point-to-point message.

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47 Claims

1-20. -20. (canceled)

21. A method comprising:
- receiving an indication of signal quality experienced by a particular mobile equipment;
  
  setting a finite length of a filter as a function of the received indication of signal quality;
  
  filtering a sequence of link quality measurement data using the finite length filter; and
  
  transmitting an indication of the filtered link quality measurement data.
- View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
- - 22. The method of claim 21, wherein the indication of signal quality comprises an indication of the particular mobile equipment'"'"'s speed.
  - 23. The method of claim 21, wherein the indication of a signal quality is received in a point-to-point message.
  - 24. The method of claim 21, wherein setting the finite length of the filter comprises setting a forgetting factor.
  - 25. The method of claim 24, further comprising:
    - calculating a default forgetting factor based on a parameter received in a broadcast message;
      
      and wherein setting the finite length of the filter comprises modifying the default forgetting factor.
  - 26. The method of claim 21, wherein the sequence of link quality measurement data comprises bit error probability.
  - 27. The method of claim 21, wherein the indication of the filtered link quality measurement data comprises mean bit error probability.
  - 28. The method of claim 21, wherein the indication of the filtered link quality measurement data comprises coefficient of variation of bit error probability.
  - 29. The method of claim 21, executed by the particular mobile equipment.
  - 30. The method of claim 29, wherein the filter is disposed in the particular mobile equipment.
  - 31. The method of claim 30, further comprising calculating in the particular mobile equipment a default factor;
    - and wherein setting the finite length of the filter comprises modifying the default factor.
  - 32. The method of claim 31, wherein the default factor comprises a default forgetting factor that is calculated based on a parameter received from a network.
  - 33. The method of claim 32, wherein the parameter is received from the network in a broadcast message.

34. An apparatus comprising:
- a receiver configured to receive an indication of signal quality experienced by a particular mobile equipment;
  
  a processor configured to implement a filter for filtering a sequence of link quality measurement data, said filter having a finite filter length that is a function of the received indication of signal quality; and
  
  a transmitter, coupled to the processor, configured to transmit an indication of the filtered link quality measurement data.
- View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
- - 35. The apparatus of claim 34, wherein the apparatus comprises the particular mobile equipment and the indication of signal quality comprises an indication of the particular mobile equipment'"'"'s speed.
  - 36. The apparatus of claim 34, wherein the indication of a signal quality is received in a point-to-point message.
  - 37. The apparatus of claim 34, wherein the finite length comprises a forgetting factor.
  - 38. The apparatus of claim 37, wherein:
    - the receiver is further configured to receive from the network a broadcast message that includes a parameter;
      
      and the processor is further configured to calculate a default forgetting factor based on the parameter received in the broadcast message;
      
      and wherein the processor is configured to implement the filter by modifying the default forgetting factor.
  - 39. The apparatus of claim 34, wherein the sequence of link quality measurement data comprises bit error probability.
  - 40. The apparatus of claim 34, wherein the indication of the filtered link quality measurement data comprises mean bit error probability.
  - 41. The apparatus of claim 34, wherein the indication of the filtered link quality measurement data comprises coefficient of variation of bit error probability.
  - 42. The apparatus of claim 34, wherein the apparatus comprises the particular mobile equipment.
  - 43. The apparatus of claim 42, wherein the filter is disposed in the particular mobile equipment.
  - 44. The apparatus of claim 43, wherein the processor is configured to calculate a default factor, and is configured to implement the filter by modifying the default factor.
  - 45. The apparatus of claim 44, wherein the default factor comprises a default forgetting factor and the processor is configured to calculate the default forgetting factor based on a parameter received from a network.
  - 46. The apparatus of claim 45, wherein the parameter is received from the network in a broadcast message.

47. An apparatus comprising:
- receiving means for receiving an indication of signal quality experienced by a particular mobile equipment;
  
  processing means for implementing a filter for filtering a sequence of link quality measurement data, said filter having a finite filter length that is a function of said received indication of signal quality; and
  
  transmit means for transmitting an indication of the filtered link quality measurement data.

Specification

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Current Assignee
Conversant Wireless Licensing S.à.r.l. (f/k/a Core Wireless Licensing S.a.r.l.) (MOSAID Technologies Inc. (f/k/a Conversant Intellectual Property Management))
Original Assignee
Nokia Corporation
Inventors
Zhao, Yuping, Sebire, Guillaume, Nikula, Eero

Granted Patent

US 7,599,664 B2
Time in Patent Office

Days
Field of Search
US Class Current

455/67.11
CPC Class Codes

H04L 1/0026 Transmission of channel qua...

H04L 1/20 using signal quality detector

Mobile equipment based filtering for packet radio service (PRS)

First Claim

11 Assignments

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Abstract

19 Citations

47 Claims

Specification

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Mobile equipment based filtering for packet radio service (PRS)

First Claim

11 Assignments

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0 Petitions

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Accused Products

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Abstract

19 Citations

47 Claims

Specification

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