Dynamic pilot power in a wireless communications system

• US 20050250527A1
• Filed: 05/10/2004
• Published: 11/10/2005
• Est. Priority Date: 05/10/2004
• Status: Abandoned Application

• Current Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Original Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Inventors: Jugl, Enrico, Schacht, Mirko, Derakhshan, Fariborz
• Application Number:
  US10/842,708
• Publication Number:
  US 20050250527A1
• Time in Patent Office: Days
• US Class Current: 455/522
• CPC Class Codes: H04W 16/06 Hybrid resource partitioning, e.g. channel borrowing

Abstract

A method is provided for controlling pilot power in a communications system. The method comprises determining a load associated with a cell in the communications system, and setting pilot power at a level associated with the determined load. In one exemplary embodiment, pilot power is set at a first low level in response to the determined load being less than a preselected setpoint and at a second, higher level in response to the determined load being greater than the preselected setpoint.

Claims

1. A method for controlling pilot power in a communications system, comprising:

determining a load associated with a cell in the communications system; and

setting pilot power at a level associated with the determined load.

2. A method, as set forth in claim 1, wherein setting pilot power at a level associated with the determined load further comprises setting pilot power at a first level in response to the determined load being less than a first preselected value and setting pilot power at a second level in response to the determined load being greater than the first preselected value.

3. A method, as set forth in claim 2, further comprising filtering the pilot power to control the rate at which pilot power transitions between the first and second levels.

4. A method, as set forth in claim 1, wherein setting pilot power at a level associated with the determined load further comprises setting pilot power as a linear function of the determined load.

5. A method, as set forth in claim 4, further comprising filtering the pilot power.

6. A method, as set forth in claim 1, wherein determining the load associated with a cell in the communications system further comprises determining the load based on the number of mobile stations associated with the cell.

7. A method, as set forth in claim 1, wherein determining the load associated with a cell in the communications system further comprises determining the load based on a magnitude of information being exchanged in the cell.

8. A method, as set forth in claim 1, wherein determining the load associated with a cell in the communications system further comprises determining the load based on actual transmitted power of the cell.

9. A method, as set forth in claim 1, wherein determining the load associated with a cell in the communications system further comprises determining the load based on a ratio of actual transmitted power of the cell to a total maximum transmit power.