CONTROLLING FORWARD AND REVERSE LINK TRAFFIC CHANNEL POWER
First Claim
1. A method of controlling forward and reverse link channel transmission power, Ptransmit, to and from a user terminal in a wireless communications system having a plurality of beams, comprising the steps of:
- (a) receiving an in-use formatted message signal to noise ratio (SNR) of an active signal of interest;
(b) determining a baseline power level, Pbaseline, from the received active formatted message SNR, wherein the determining step comprises calculating a transmit power level offset;
(c) identifying an interference susceptibility of the active signal of interest comprising the step of measuring a signal power of at least one adjacent signal at a receiver;
(d) transmitting a formatted interference message comprising segregating interference susceptibility into categories detected at the receiver;
(e) determining a power margin, Pmargin, from the identified interference susceptibility;
(f) identifying a quality of service metric (QSM) associated with the active signal of interest;
(g) determining a power level correction factor, Pcorrection, based on the QSM;
(h) identifying a signal fade condition associated with the active signal of interest;
(i) determining a fade margin power level Pfade, based on the signal fade condition; and
(j) setting Ptransmit based on Pbaseline, Pmargin, Pcorrection, and Pfade.
1 Assignment
0 Petitions
Accused Products
Abstract
Forward link transmission power to a user terminal in a wireless communications system having a plurality of beams is controlled by determining a baseline power level, Pbaseline, from a received active pilot channel signal-to-noise ratio (SNR); determining a power margin, Pmargin, from an identified interference susceptibility; determining a power level correction, Pcorrection, based on an identified quality of service metric (QSM); determining a fade correction factor, Pfade, based on a detected fade environment; and setting Ptransmit based on Pbaseline, Pmargin, Pcorrection and Pfade. For example, Ptransmit may be set to a power level that is substantially equal to the sum of Pbaseline, Pmargin, Pcorrection and Pfade. The determination of each of Pbaseline, Pmargin, Pcorrection and Pfade may be performed in independently running control loops or processes.
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Citations
36 Claims
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1. A method of controlling forward and reverse link channel transmission power, Ptransmit, to and from a user terminal in a wireless communications system having a plurality of beams, comprising the steps of:
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(a) receiving an in-use formatted message signal to noise ratio (SNR) of an active signal of interest; (b) determining a baseline power level, Pbaseline, from the received active formatted message SNR, wherein the determining step comprises calculating a transmit power level offset; (c) identifying an interference susceptibility of the active signal of interest comprising the step of measuring a signal power of at least one adjacent signal at a receiver; (d) transmitting a formatted interference message comprising segregating interference susceptibility into categories detected at the receiver; (e) determining a power margin, Pmargin, from the identified interference susceptibility; (f) identifying a quality of service metric (QSM) associated with the active signal of interest; (g) determining a power level correction factor, Pcorrection, based on the QSM; (h) identifying a signal fade condition associated with the active signal of interest; (i) determining a fade margin power level Pfade, based on the signal fade condition; and (j) setting Ptransmit based on Pbaseline, Pmargin, Pcorrection, and Pfade. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for controlling forward and reverse link channel transmission power, Ptransmit, to and from a user terminal in a wireless communications system having a plurality of beams, the system comprising:
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means for receiving an in-use formatted message signal to noise ratio (SNR) of a an active signal of interest; means for determining a baseline power level, Pbaseline, from the received active formatted message SNR, wherein the means for determining comprises a means for calculating a transmit power level offset; means for identifying an interference susceptibility of the active signal of interest comprising a means for measuring a signal power of at least one adjacent signal at a receiver; means for transmitting a formatted interference message comprising segregating interference susceptibility into categories detected at the receiver; means for determining a power margin, Pmargin, from the identified interference susceptibility; means for identifying a quality of service metric (QSM) associated with the active signal of interest; means for determining a power level correction factor, Pcorrection, based on the QSM; means for identifying a signal fade condition associated with the active signal of interest; means for determining a fade margin power level Pfade, based on the signal fade condition; and means for setting Ptransmit based on Pbaseline, Pmargin, Pcorrection, and Pfade. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A computer program product, comprising:
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computer readable medium comprising; code for causing forward and reverse link channel transmission power, Ptransmit, to be controlled to and from a user terminal in a wireless communications system having a plurality of beams, the computer code comprising; code for causing an in-use formatted message signal to noise ratio (SNR) to be received from an active signal of interest; code for causing a baseline power level, Pbaseline, to be determined from the received active formatted message SNR, further comprising a calculation of a transmit power level offset; code for causing an interference susceptibility of the active signal of interest be identified further comprising a measurement of a signal power of at least one adjacent signal at a receiver; code for causing a formatted interference message be transmitted comprising a segregation of the interference susceptibility into categories detected at the receiver; code for causing a power margin, Pmargin, be determined from the identified interference susceptibility; code for causing a quality of service metric (QSM) associated with the active signal of interest be identified; code for causing a power level correction factor, Pcorrection, based on the QSM be determined code for causing a signal fade condition associated with the active signal of interest be identified; code for causing a fade margin power level, Pfade, based on the signal fade condition be determined; and code for causing a Ptransmit be set based on Pbaseline, Pmargin, Pcorrection, and Pfade. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification