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A method and system for use in wafer fabrication systems. The method and system identify wafer fabrication system impacts resulting from specified actions by specifying at least one action related to at least one integral part associated with the wafer fabrication system, and generating a presentati

A method and system for use in wafer fabrication systems. The method and system identify wafer fabrication system impacts resulting from specified actions by specifying at least one action related to at least one integral part associated with the wafer fabrication system, and generating a presentation of at least one impact upon at least one integral part associated with the wafer fabrication system arising from the at least one action related to the at least one integral part associated with the wafer fabrication system.

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A method and system for use in wafer fabrication systems. The method and system identify wafer fabrication system impacts resulting from specified actions by specifying at least one action related to at least one integral part associated with the wafer fabrication system, and generating a presentati

A method and system for use in wafer fabrication systems. The method and system identify wafer fabrication system impacts resulting from specified actions by specifying at least one action related to at least one integral part associated with the wafer fabrication system, and generating a presentation of at least one impact upon at least one integral part associated with the wafer fabrication system arising from the at least one action related to the at least one integral part associated with the wafer fabrication system. dperforming error minimizing calculations based on Gauss's postulate to minimize sum of square errors in estimating said location.2. A method as claimed in claim 1, whereinsaid reference terminals are each terrestrial terminals.3. A method as claimed in claim 1, wherein said network includes an ad-hoc network, and said terminal and said reference terminals are adapted to operate in said ad-hoc network.4. A method as claimed in claim 1, wherein each of said patterns is spherical.5. A method as claim ed in claim 3, wherein said terminal is a mobile terminal.6. A system for determining the location of a terminal in a wireless communications network, comprising: a receiver, adapted to receive respective signals from each of at least four reference terminals at said terminal, each said respective signal including information representing a location of its respective said reference terminal; anda processor, adapted to estimate a respective distance from said terminal to each of said reference terminals based on said respective signals received at said terminal, calculate a respective simulated pattern about each of said respective reference terminals based on said respective estimated distance from said terminal to each said respective reference terminal and said respective locations of said respective reference terminals, estimate a location at which each of said simulated patterns have the smallest error in their respective estimated distance, identify said estimated location as representing the location of said terminal, and perform error minimizing calculations based on Gauss's postulate to minimize sum of square errors in estimating said location.7. A system as claimed in claim 6, whereinsaid reference terminals are each terrestrial terminals.8. A system as claimed in claim 6, whereinsaid network includes an ad-hoc network, and said terminal and said reference terminals are adapted to operate in said ad-hoc network.9. A system as claimed in claim 6, whereineach of said patterns is spherical.10. A system as claimed in claim 8, wherein said terminal is a mobile terminal.11. A computer-readable medium of instructions for determining the location of a terminal in a wireless communications network, comprising: a first set of instructions, adapted to estimate a respective distance from said terminal to each of at least four reference terminals based on respective signals received at said terminal from each of a plurality of reference terminals, each said respective signal including information representing a location of its respective said reference terminal; a second set of instructions, adapted to calculate a respective simulated pattern about each of said respective reference terminals based on said respective estimated distance from said terminal to each said respective reference terminal and said respective locations of said respective reference terminals; anda third set of instructions, adapted to estimate a location at which each of said simulated patterns have the smallest error in their respective estimated distance, identify said estimated location as representing the location of said terminal, and perform error minimizing calculations based on Gauss's postulate to minimize sum of square errors in estimating said location.12. A computer-readable medium of instructions as claimed in claim 11, wherein said reference terminals are each terrestrial terminals.13. A computer-readable medium of instructions as claimed in claim 11, wherein said network includes an ad-hoc network, and said terminal and said reference terminals are adapted to operate in said ad-hoc network.14. A computer-readable medium of instructions as claimed in claim 11, whereineach of said patterns is spherical.15. A computer readable medium of instructions as claimed in cla im 13, wherein said terminal is a mobile terminal.16. A method for determining the location of a terminal in a wireless communications network, comprising: receiving respective signals from each of a plurality of reference terminals at said terminal, each said respective signal including information representing a location of its respective said reference terminal;estimating a respective distance from said terminal to each of said reference terminals based on said respective signals received at said terminal;calculating a respective simulated pattern about each of said respective reference terminals based on said respective estimated distance from said terminal to each said respective reference terminal and said respective locations of said respective reference terminals; andestimating a location at which each of said simulated patterns have the smallest error in their respective estimated distance, and identifying said estimated location as representing the location of said terminal;wherein the smallest error is determined in the location estimating step based on the following equations:where three unknown variables δx, δy, δz, represent corrections to be applied to an estimation of the location of said terminal represented by coordinates (x 0, y0, z0).17. A system for determining the location of a terminal in a wireless communications network, comprising: a receiver, adapted to receive respective signals from each of a plurality of reference terminals at said terminal, each said respective signal including information representing a location of its respective said reference terminal; anda processor, adapted to estimate a respective distance from said terminal to each of said reference terminals based on said respective signals received at said terminal, calculate a respective simulated pattern about each of said respective reference terminals based on said respective estimated distance from said terminal to each said respective reference terminal and said respective locations of said respective reference terminals, estimate a location at which each of said simulated patterns have the smallest error in their respective estimated distance, and identify said estimated location as representing the location of said terminal;wherein the smallest error is determined in the location estimating based on the following equations:where three unknown variables δx, δy, δz, represent corrections to be applied to an estimation of the location of said terminal represented by coordinates (x 0, y0, z0).18. A computer readable medium of instructions for determining the location of a terminal in a wireless communications network, comprising: a first set of instructions, adapted to estimate a respective distance from said terminal to each of a plurality of reference terminals based on respective signals received at said terminal from each of a plurality of reference terminals, each said respective signal including information representing a location of its respective said reference terminal;a second set of instructions, adapted to calculate a respective simulated pattern about each of said respective reference terminals based on said respective estimated distance from said terminal to each said respective reference terminal and said respective locations of said respective reference terminals; anda third set of instructions, adapted to estimate a location at which each of said simulated patterns have the smallest error in their respective estimated distance, and identifying said estimated location as representing the location of said terminal;wherein the smallest error is determined in the location estimating based on the following equations:where three unknown variables δx, δy, δz, represent corrections to be applied to an es timation of the location of said terminal represented by coordinates (x 0, y0, z0). the measured energy with a predetermined threshold;determining that the reception status is good if the energy is greater than the threshold; anddetermining that the reception status is bad if the energy is less than the threshold.5. The method of claim 3, wherein the step of determining reception status comprises the steps of:determining an FER (Frame Error Rate) corresponding to the measured energy;generating a random number in a predetermined range;determining that the reception status is good if the random number is greater than the FER; anddetermining that the reception status is bad if the random number is less than the FER.6. A method of transmitting power control information to a BTS in a BSC of a mobile communication system, comprising the steps of: checking FQI information in the latest reverse DCCH message received from the BSC if the frame content of the reverse message indicates a null frame;determining a reverse link power control threshold based on the FQI information; andtransmitting a forward DCCH message with the threshold to the BTS.7. The method of claim 6, further comprising the step of setting power control information requesting the MS to increase transmission power in the forward DCCH message and transmitting the forward DCCH message to the BTS if the frame content of the reverse message indicates an erasure frame.8. The method of claim 6, further comprising the step of setting the power control information of the reverse message in the forward DCCH message and transmitting the forward DCCH message to the BTS if the frame content of the reverse message indicates a data frame.9. The method of claim 6, further comprising the step of setting an initial value for the reverse link power control in the forward DCCH message and transmitting the forward DCCH message to the BTS if the frame content of the reverse message indicates an idle frame.10. The method of claim 6, further comprising the step of setting information for a slow forward power control in the forward DCCH message and transmitting the forward DCCH message to the BTS if the frame content of the forward DCCH message indicates a null frame.11. A method of transmitting power control information to a BTS in a BSC of a mobile communication system, comprising the steps of: receiving a reverse DCCH message from the BTS;extracting QIB information from the reverse DCCH message;determining a threshold for a slow forward power control based on the QIB information; andtransmitting a forward DCCH message including the slow forward power control threshold to the BTS.12. A method of transmitting power control information to a BSC in a BTS of a mobile communication system, comprising the steps of: receiving FPC mode information indicating a slow power control from the BSC and transmitting the FPC mode information to an MS; andextracting a QIB that is a power control command in a frame period from a reverse pilot channel received from the MS according to the FPC mode information and transmitting the QIB to the BSC.13. The method of claim 12, further comprising the step of receiving a threshold for a forward power control that is determined based on the QIB from the BSC.14. A method of transmitting power control information to a BSC in a BTS of a mobile communication system, comprising the steps of: extracting power control information from a radio frame received from an MS according to a set FPC mode;performing a fast power control if the extracted power control information is a PCB and resetting a predetermined first field in a reverse DCCH message;performing a slow power control if the extracted power control information is a QIB and setting the first field to a QIB status value in the reverse DCCH message;setting a predetermined second field in the reverse DCCH message according to the energy measurement of the extracted power control information; andtransmitting the reverse DCCH message to the BSC.15. The method of claim 14, wherein the second field is FQI (Frame Quality Indicator) information.