METHOD AND APPARATUS FOR DETERMINING AN OUTAGE IN COMMUNICATION SYSTEMS

• US 20100111152A1
• Filed: 11/16/2009
• Published: 05/06/2010
• Est. Priority Date: 03/04/2002
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Black, Peter J., Bhushan, Naga, Attar, Rashid Ahmed Akbar
• Granted Patent: US 8,040,942 B2
• Time in Patent Office: Days
• US Class Current: 375/224
• CPC Class Codes: H04L 1/0002 by adapting the transmission rate
• CPC Class Codes: H04L 1/0021 in which the algorithm uses adaptive thresholds
• CPC Class Codes: H04W 52/223 predicting future states of the transmission
• CPC Class Codes: H04W 52/24 using SIR [Signal to Interference Ratio] or other wireless path parameters
• CPC Class Codes: H04W 52/26 using transmission rate or quality of service QoS [Quality of Service]
• CPC Class Codes: H04W 52/265 taking into account the quality of service QoS
• CPC Class Codes: H04W 52/267 taking into account the information rate
• CPC Class Codes: H04W 52/34 TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
• CPC Class Codes: H04W 52/367 Power values between minimum and maximum limits, e.g. dynamic range

Abstract

A method of detecting an outage includes determining at a source of data a quality metric of a link over which data is to be transmitted, modifying the quality metric by a quality metric margin, and declaring an outage event when power required for transmission of a reference signal exceeds power required for transmission of the reference signal determined form the modified quality metric. An apparatus for detecting an outage includes means for determining at a source of data a quality metric of a link over which data is to be transmitted, means for modifying the quality metric by a quality metric margin, means for determining a maximum rate of data in accordance with said modified quality metric, and means for declaring an outage event when power required for transmission of data at the maximum rate of data exceeds maximum allowable transmission power.

Claims

1. A method of detecting an outage, comprising:

determining at a source of data a quality metric of a link over which data is to be transmitted;

modifying said quality metric by a quality metric margin; and

declaring an outage event when power required for transmission of a reference signal exceeds power required for transmission of the reference signal determined form the modified quality metric.

2. A method of detecting an outage, comprising:

determining at a source of data a quality metric of a link over which data is to be transmitted;

modifying said quality metric by a quality metric margin;

determining a maximum rate of data in accordance with said modified quality metric; and

declaring an outage event when power required for transmission of data at the maximum rate of data exceeds maximum allowable transmission power.

3. An apparatus for detecting an outage, comprising:

means for determining at a source of data a quality metric of a link over which data is to be transmitted;

means for modifying said quality metric by a quality metric margin; and

means for declaring an outage event when power required for transmission of a reference signal exceeds power required for transmission of the reference signal determined form the modified quality metric.

4. An apparatus for detecting an outage, comprising:

means for determining at a source of data a quality metric of a link over which data is to be transmitted;

means for modifying said quality metric by a quality metric margin;

means for determining a maximum rate of data in accordance with said modified quality metric; and

means for declaring an outage event when power required for transmission of data at the maximum rate of data exceeds maximum allowable transmission power.