System and method for determining air interface information for radio resource management in wireless communications

• US 7,978,642 B2
• Filed: 12/23/2005
• Issued: 07/12/2011
• Est. Priority Date: 06/23/2003
• Status: Expired due to Fees

• Current Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Original Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Inventors: Zuniga, Juan Carlos, Zhang, Guodong, Hunkeler, Teresa Joanne, Zaki, Maged, Cave, Christopher, Cuffaro, Angelo
• Primary Examiner(s): Ton; Dang T
• Assistant Examiner(s): Kavleski; Ryan C
• Application Number:
  US11/318,402
• Publication Number:
  US 20060098603A1
• Time in Patent Office: 2,027 Days
• Field of Search: 455/450, 455/452.2, 455/67.11, 370/331, 370/252, 370/317, 370/332
• US Class Current: 370/317
• CPC Class Codes: H04L 41/147 for predicting network behaviour
• CPC Class Codes: H04L 43/106 using time related information in packets, e.g. by adding timestamps
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 72/542 using measured or perceived quality

Abstract

An air interface information unit including a measurement setup unit for implementing measurement setup procedures and configuration; a measurement reception and storing unit for storing actual, predicted and default air interface values and corresponding timestamps; a measurement processing unit for filtering, verifying, processing and combining air interface values; and a measurement output unit for providing air interface values to RRM functions upon request and triggering RRM functions when an air interface value exceeds a predetermined threshold.

Claims

1. A radio resource control unit which monitors air interface resources and provides air interface data for radio resource management (RRM), comprising:

a measurement unit configured to measure actual air interface values and a corresponding time of each measurement;

a predictive processing unit configured to generate predicted air interface values before an RRM function performs an action, predictive of the effect of the action on an air interface;

a default processing unit for generating default air interface values;

a storage unit for storing the default values, predicted values and actual air interface measurements and corresponding measurement times; and

a processing unit configured to;

process the stored default values, predicted values, and actual air interface measurements and corresponding times;

determine whether the actual air interface measurements are valid, wherein the actual air interface measurements are valid on a condition that they were taken within a predetermined time period before the determining or whether the RRM function is not in a transient state at the time of the determining; and

provide the actual air interface measurements or an alternative value to an RRM device, wherein the alternative value is one of;

the predicted air interface values or the default air interface values.

2. The control unit of claim 1 wherein the processing unit provides the output data to the RRM device upon request.

3. The control unit of claim 1 wherein the processing unit provides the output data to the RRM device on a condition that an air interface value exceeds a predetermined threshold.

4. The control unit of claim 1 wherein the output data provided to the RRM device is any one of:

values, predicted values, or default values.

5. A method for providing air interface data for use in radio resource management (RRM), comprising:

measuring actual air interface values and a corresponding time of each measurement;

obtaining predicted air interface values before an RRM function performs an action, predictive of the effect of the action on an air interface;

obtaining default air interface values;

storing the default values, predicted values, and actual air interface measurements and the corresponding measurement times; and

processing the default values, predicted values, and actual air interface measurements and corresponding measurement times;

determining whether the actual air interface measurements are valid, wherein the actual air interface measurements are valid on a condition that they were taken within a predetermined time period before the determining or whether the RRM function is not in a transient state at the time of the determining; and

providing actual air interface measurements or an alternative value to the RRM functions, wherein the alternative value is one of;

the predicted air interface values or the default air interface values.

6. The method of claim 5, wherein the default air interface values are determined using at least one of:

historical conditions, a series of measurements, or a series of evaluations.

7. The method of claim 5, wherein processing the default values includes determining whether an actual air interface value is valid by comparing the corresponding time with a threshold, on a condition that the time is older than the air interface threshold, then the air interface value is declared invalid.

8. The method of claim 5, wherein processing the default value includes:

determining an occurrence of a transient period; and

determining whether an air interface value is valid by comparing the measurement time of the air interface measurement to the occurrence of the transient period, and on a condition that the time is within the transient period, the air interface value is declared invalid.

9. The method of claim 8, further comprising:

performing a validity determination is performed on a condition that the actual air interface measurement is stored with a corresponding validity indicator.

10. The method of claim 5, wherein the air interface data is generated from a combination of at least two of:

actual measurements, predicted values or default values.