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

• US 20060098603A1
• Filed: 12/23/2005
• Published: 05/11/2006
• Est. Priority Date: 06/23/2003
• Status: Active Grant

• 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
• Granted Patent: US 7,978,642 B2
• Time in Patent Office: Days
• US Class Current: 370/335
• 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);

the control unit comprising;

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

a predictive processing unit for generating 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 for processing the stored default values, predicted values and actual air interface measurements and corresponding times for generating output data to an RRM device in a wireless communication system.

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

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

4. The control unit of claim 1 whereby the output data provided to the RRM device are selected from the group consisting of actual values, predicted values and default values.

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

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

processing said default values, predicted values and actual air interface measurements and corresponding measurement times to provide air interface data to RRM functions.

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 and a series of evaluations.

7. The method of claim 5, wherein said processing step determines whether an actual air interface value is valid by comparing the corresponding time with a threshold, and if said time is older than said air interface threshold then said air interface value is declared invalid.

8. The method of claim 5, wherein said processing step:

determines the occurrence of a transient period; and

determines 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 if said time is within said transient period then said air interface value is declared invalid.

9. The method of claim 8, wherein the validity determination is performed when the actual air interface measurement is stored, and a corresponding validity indicator is also stored with the air interface measurement.

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 and default values.