Abstract: Methods and apparatus are disclosed for estimating, based on data collected from multiple types of data sources, the locations of cell towers. An example computer implemented method for estimating locations of cell towers includes identifying, with the processor, estimated locations for respective ones of the cell towers based on data collected from a higher-ranking data source; when estimated locations for respective ones of the cell towers have not already been identified based on data collected from the higher-ranking data source, identifying, with the processor, estimated locations for respective ones of the cell towers based on data collected from a lower-ranking data source; and communicating the identified locations for the respective ones of the cell towers.

Abstract: Methods and apparatus are disclosed for estimating, based on data collected from multiple types of data sources, the locations of cell towers. An example computer implemented method for estimating locations of cell towers includes identifying, with the processor, estimated locations for respective ones of the cell towers based on data collected from a higher-ranking data source; when estimated locations for respective ones of the cell towers have not already been identified based on data collected from the higher-ranking data source, identifying, with the processor, estimated locations for respective ones of the cell towers based on data collected from a lower-ranking data source; and communicating the identified locations for the respective ones of the cell towers.

Abstract: Example methods and apparatus to determine a base station location are disclosed herein and include aggregating retrieved base-station signal records based on signal identifiers and geographic locations, and differentiating the aggregated signal records and prevent errors caused by base-station signal reuse by assigning a first reuse identifier to a first one of the base-station signal records and a second reuse identifier to a second one of the base-station signal records when (1) the first and second ones of the base-station signal records exhibit a same signal identifier and (2) a distance between a first location associated with the first one of the base-station signal records and a second location associated with the second one of the base-station signal records satisfies a threshold.

Abstract: Methods and apparatus are disclosed for estimating, based on data collected from multiple types of data sources, the locations of cell towers. A first source is ranked relative to a second source based on the associated accuracy of each source with respect to estimating the location of a cell tower. Data collected from the higher-ranking source is used to identify estimated locations for cell towers from which such data has been collected. Data collected from the lower-ranking source is thereafter used to identify estimated locations for cell towers from which such data has been collected, to the extent that an estimated location for the cell tower has not already been identified via the data collected from the higher-ranking source. In an example method, the higher-ranking source is associated with RF Layer 3 data and/or messages, and the lower-ranking source is associated with RF Layer 1 data and/or messages.

Abstract: Methods and apparatus are disclosed for estimating, based on data collected from multiple types of data sources, the locations of cell towers. A first source is ranked relative to a second source based on the associated accuracy of each source with respect to estimating the location of a cell tower. Data collected from the higher-ranking source is used to identify estimated locations for cell towers from which such data has been collected. Data collected from the lower-ranking source is thereafter used to identify estimated locations for cell towers from which such data has been collected, to the extent that an estimated location for the cell tower has not already been identified via the data collected from the higher-ranking source. In an example method, the higher-ranking source is associated with RF Layer 3 data and/or messages, and the lower-ranking source is associated with RF Layer 1 data and/or messages.

Abstract: Example methods and apparatus to determine a base station location are disclosed herein and include aggregating retrieved base-station signal records based on signal identifiers and geographic locations, and differentiating the aggregated signal records and prevent errors caused by base-station signal reuse by assigning a first reuse identifier to a first one of the base-station signal records and a second reuse identifier to a second one of the base-station signal records when (1) the first and second ones of the base-station signal records exhibit a same signal identifier and (2) a distance between a first location associated with the first one of the base-station signal records and a second location associated with the second one of the base-station signal records satisfies a threshold.

Abstract: Example methods and apparatus to determine a base station location are disclosed herein and include determining which signals are transmitted from a first base station by identifying a first set of signals having a first signal identifier, identifying a first signal in the first set of signals having a first relative highest signal quality value, identifying a first location associated with the first signal, identifying a second set of signals having a second signal identifier, identifying a second signal in the second set of signals having a second relative highest signal quality value, identifying a second location associated with the second signal, determining a first distance between the first location and the second location, comparing the first distance to a first threshold distance, associating the first signal and the second signal with the first base station when the first distance satisfies the first threshold distance, and estimating a location of the first base station based on at least one of the

Abstract: Example methods and apparatus to determine a base station location are disclosed herein and include determining which signals are transmitted from a first base station by identifying a first set of signals having a first signal identifier, identifying a first signal in the first set of signals having a first relative highest signal quality value, identifying a first location associated with the first signal, identifying a second set of signals having a second signal identifier, identifying a second signal in the second set of signals having a second relative highest signal quality value, identifying a second location associated with the second signal, determining a first distance between the first location and the second location, comparing the first distance to a first threshold distance, associating the first signal and the second signal with the first base station when the first distance satisfies the first threshold distance, and estimating a location of the first base station based on at least one of the

Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to determine a base station location. A disclosed example method includes identifying first signals comprising a same first signal identifier, identifying second signals comprising a same second signal identifier; identifying a first location associated with one of the first signals having a highest signal quality value and a second location associated with one of the second signals having a highest signal quality value; and determining that the first signals and the second signals are transmitted from a first base station if a distance between the first location and the second location satisfies a threshold.

Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to determine a base station location. A disclosed example method includes identifying first signals comprising a same first signal identifier, identifying second signals comprising a same second signal identifier; identifying a first location associated with one of the first signals having a highest signal quality value and a second location associated with one of the second signals having a highest signal quality value; and determining that the first signals and the second signals are transmitted from a first base station if a distance between the first location and the second location satisfies a threshold.