Location determination apparatus and method

Abstract

This invention provides a location determination method and a location determination device. In the method, multiple reference measurement reports are obtained, each corresponding to a device identity or a user identity, and each reference measurement report includes at least one set of reference measurement data. Based on the stability of the reference measurement reports, at least one set of resident features is identified, where each feature in the set includes key features extracted from the reference measurement data, and each feature corresponds to reference location information in a static context. The location information corresponding to the measurement report to be evaluated is determined based on a comparison between the measurement report to be evaluated and the set of resident features.

Claims

1. A position determination method, implemented through a processor, the position determination method comprising: Obtain multiple reference measurement reports, wherein the reference measurement reports correspond to a device identity or a user identity, and each of the reference measurement reports includes at least one reference measurement data; identify at least one set of resident features based on the stability of the reference measurement reports, wherein each of the at least one set of resident features includes key features extracted from the at least one reference measurement data, and each of the at least one set of resident features corresponds to a reference location information in a static context; And determine the location information corresponding to the measurement report to be evaluated based on a comparison result between the measurement report to be evaluated and the at least one set of resident features, wherein the measurement report to be evaluated corresponds to the device identity or the user identity, and the measurement report to be evaluated includes at least one measurement data to be evaluated.

2. The location determination method as described in claim 1, wherein the at least one reference measurement data or the at least one measurement data to be evaluated includes at least one of the following: Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), Timing Advance (TA), Cell ID, Minimization of Drive-Test (MDT) data, or satellite positioning information.

3. The location determination method as described in claim 1, wherein identifying the corresponding at least one set of resident features based on the stability of the reference measurement reports includes: Determine a statistical variation value of a first data point in the reference measurement data within a predetermined time interval, wherein the stability corresponds to the statistical variation value; and determine, based on the statistical variation value, a set of resident features corresponding to the first data point in the static scenario.

4. The location determination method as described in claim 1, wherein identifying at least one set of resident features based on the stability of the reference measurement reports includes: Clustering is performed on at least one of the reference measurement reports corresponding to the static scenario to generate the at least one set of resident features.

5. The location determination method as described in claim 4, wherein the at least one reference measurement data includes satellite positioning information, and the method further includes: The reference location information is mapped to the satellite positioning information.

6. The location determination method as described in claim 1 further includes: The comparison result is determined based on a similarity score or a feature distance between the measurement data to be evaluated and the at least one set of resident features.

7. The location determination method as described in claim 1 further includes: Determine whether there exists at least one set of persistent features corresponding to the device identity or the user identity; In response to the absence of the at least one resident feature set, a geometric positioning algorithm is executed to determine the location information corresponding to the measurement report to be evaluated; and in response to the existence of the at least one resident feature set, the location information corresponding to the measurement report to be evaluated is determined according to the comparison step.

8. The location determination method as described in claim 1 further includes: The device identity or user identity is processed through a hash or de-identification process to generate the corresponding code.

9. A position determination device, comprising: A memory module used to store a piece of code; and a processor coupled to the memory and configured to load the code and execute: acquiring a plurality of reference measurement reports, wherein the reference measurement reports correspond to a device identity or a user identity, and each of the reference measurement reports includes at least one reference measurement data; identifying at least one set of resident features corresponding to the stability of the reference measurement reports, wherein each of the at least one set of resident features includes key features extracted from the at least one reference measurement data, and each of the at least one set of resident features corresponds to a reference location information in a static context; And determine the location information corresponding to the measurement report to be evaluated based on a comparison result between the measurement report to be evaluated and the at least one set of resident features, wherein the measurement report to be evaluated corresponds to the device identity or the user identity, and the measurement report to be evaluated includes at least one measurement data to be evaluated.

10. The location determination apparatus as described in claim 9, wherein the at least one reference measurement or the at least one measurement to be evaluated includes at least one of the following: Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), Timing Advance (TA), Cell ID, Minimization of Drive-Test (MDT) data, or satellite positioning information.

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