Method and apparatus for reverse link loading estimation
First Claim
1. A method of estimating loading in a wireless communication system, comprising the steps of:
- entering a period of silence during which a designated remote unit continues to transmit;
performing closed loop power control on a reverse link signal received from said designated remote unit;
accumulating a first series of power control commands to produce a first transmit gain adjustment value;
resuming normal operation in which active remote units resume transmission of reverse link signals;
performing closed loop power control on said reverse link signal received from said designated remote unit;
accumulating a second series of power control commands to produce a second transmit gain adjustment value; and
determining a level of loading based upon said first and second transmit gain adjustment values.
1 Assignment
0 Petitions
Accused Products
Abstract
In a wireless communication system, in order to determine a level of loading, the system enters a period of silence during which a designated remote unit continues to transmit but other remote unit transmissions are interrupted. The base station and designated remote unit perform closed loop power control on a reverse link signal received from the designated remote. A first series of power control commands accumulated and a first corresponding transmit gain adjustment value is stored. Normal operation is resumed. Once again, the base station and designated remote unit perform closed loop power control on the reverse link signal received from the designated remote unit. A second series of power control commands are accumulated and a second corresponding transmit gain adjustment value is stored. A level of loading is determined based upon the first and second transmit gain adjustment values.
-
Citations
22 Claims
-
1. A method of estimating loading in a wireless communication system, comprising the steps of:
-
entering a period of silence during which a designated remote unit continues to transmit;
performing closed loop power control on a reverse link signal received from said designated remote unit;
accumulating a first series of power control commands to produce a first transmit gain adjustment value;
resuming normal operation in which active remote units resume transmission of reverse link signals;
performing closed loop power control on said reverse link signal received from said designated remote unit;
accumulating a second series of power control commands to produce a second transmit gain adjustment value; and
determining a level of loading based upon said first and second transmit gain adjustment values. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
wherein TGA(0) is equal to said first transmit gain adjustment value and wherein TGA(t) is equal to said second transmit gain adjustment value.
-
-
11. The method of claim 1, wherein said steps of accumulating are performed by a base station.
-
12. The method of claim 1, wherein said steps of accumulating are performed by said designated remote unit.
-
13. An apparatus for load estimation in a wireless communication system, comprising:
-
means for performing closed loop power control on a reverse link signal received from a designated remote unit;
means for entering a period of silence during which said designated remote unit continues to transmit;
means for accumulating a first series of power control commands to produce a first transmit gain adjustment value;
means for resuming normal operation in which active remote units resume transmission of reverse link signals;
means for accumulating a second series of power control commands to produce a second transmit gain adjustment value; and
means for determining a level of loading based upon said first and second transmit gain adjustment values. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
wherein TGA(0) is equal to said first transmit gain adjustment value and wherein TGA(t) is equal to said second transmit gain adjustment value.
-
-
20. The apparatus of claim 13, wherein said means for accumulating are incorporated in a base station.
-
21. The apparatus of claim 13, wherein said means for accumulating are incorporated in said designated remote unit.
-
22. A base station, comprising:
-
a demodulator receiving a remote test unit signal and producing a demodulated signal;
a signal quality determination block receiving said demodulated signal and producing an indication of quality thereof; and
a digital signal processor receiving said indication of quality and determining a power control command for said remote test unit, wherein said digital signal processor accumulates a first series of power control commands corresponding to said remote test unit during a period of silence, accumulates a second series of said power control commands corresponding to said remote test unit during a period of normal operation and determines a level of loading based upon said first and second series of power control commands.
-
Specification