# US 8,542,627 B2 · System and method for determining air interface information for radio resource management in wireless communications

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- Number: US 8,542,627 B2
- Document ID: US8542627B2
- Status: Granted
- Kind: B2
- Application number: 13/164,052
- Filed: 2011-06-20
- Published: 2011-10-13
- Granted: 2013-09-24
- Earliest claimed: 2003-06-23
- Assignees: InterDigital Technology Corporation
- Applicants: Christopher R. Cave; Angelo A. Cuffaro; Teresa J. Hunkeler; Maged M. Zaki; Guodong Zhang; Juan Carlos Zuniga
- Inventors: Christopher R. Cave; Angelo A. Cuffaro; Teresa J. Hunkeler; Maged M. Zaki; Guodong Zhang; Juan Carlos Zuniga
- Web page: https://patentgrep.com/patent/US8542627B2

## CPC

- H04L 43/106: using time related information in packets, e.g. by adding timestamps
- H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports}
- H04W 72/542: using measured or perceived quality
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A method for determining values for use by radio resource management functions is disclosed. Air interface actual values and predictive values are obtained and stored. A timestamp indicating a time when each actual value or predictive value is obtained is generated and stored. The actual values and the predictive values are processed to provide an output value.

## Claims

### Claim 1

A method for determining values for use by radio resource management functions, comprising:
obtaining air interface actual values and predictive values;
storing the actual values and the predictive values;
generating and storing a timestamp indicating a time when each actual value or predictive value is obtained; and
processing the actual values and the predictive values to provide an output value, wherein the output value includes any one of: an actual value, a predictive value, a combination of the actual value and the predictive value, a default value, or the actual value plus a margin, wherein the processing includes:
determining an occurrence of a transient period, wherein the transient period is a period of time when a radio link is unstable; and
determining whether the actual value is valid by comparing the timestamp of the actual value to the occurrence of the transient period, and on a condition that the timestamp is within the transient period, then the actual value is determined to be not valid.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the processing includes determining whether the actual value or the predictive value is valid by comparing the corresponding timestamp with a threshold, and on a condition that the timestamp is older than the threshold, then the actual value or the predictive value is determined to be not valid.

### Claim 3 (depends on 1)

The method according to claim 1, wherein:
the actual value is stored with a corresponding indicator, which indicates whether the actual value was obtained during the transient period; and
the determining includes evaluating the indicator to determine whether the actual value is valid.

### Claim 4 (depends on 1)

The method according to claim 1, wherein the processing further includes:
using the actual value to provide the output value on a condition that the actual value is available and valid.

### Claim 5 (depends on 1)

The method according to claim 1, wherein the processing further includes:
combining the actual value and the predictive value to provide the output value on a condition that the actual value is available but not valid and the predictive value is available.

### Claim 6 (depends on 1)

The method according to claim 1, wherein the processing further includes:
providing the output value using any one of: the default value, the combination of the actual value and the default value, the actual value plus the margin, or declaring air interface resources to be unavailable on a condition that the actual value is available but not valid and the predictive value is not available.

### Claim 7 (depends on 1)

The method according to claim 1, wherein the processing further includes:
using the predictive value to provide the output value on a condition that the actual value is not available and the predictive value is available.

### Claim 8 (depends on 1)

The method according to claim 1, wherein the processing further includes:
using the default value to provide the output value on a condition that the actual value is not available and the predictive value is not available.