Method for positioning and processing mobile station

Abstract

The method comprises: according to the location request information of core network, location capability of subscriber equipment and information about cell type, the radio network control (RNC) selects an initial location method to make location process; if satisfying the location requirement, then ending the location process; if location process failures, according to the location capability of user and the type of accessed cell, making a location degradation process; after the location method is selected, using the selected location method to locate the mobile station.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a positioning processing method of a mobile station. Background technique [0002] In the WCDMA (Wideband Code Division Multiple Access) mobile communication system, there are three standard positioning methods: AGPS (Network Assisted GPS Positioning Method), OTDOA (Observation Time Difference) and CELLID (Cell Identification). The positioning accuracy of each positioning method is different. Generally speaking, the positioning accuracy of AGPS is the highest, followed by OTDOA, and the positioning accuracy of CELLID is the worst. [0003] However, for different geographical environments, such as: outdoor open environment, outdoor occluded environment, indoor, etc., the positioning accuracy of each positioning method varies greatly. For example: in an open outdoor environment, the positioning accuracy of the AGPS method can reach within 10 meters, the positioning accuracy ...

AI Technical Summary

Problems solved by technology

[0007] The disadvantage of the above solution is that: when the positioning response time in the positioning request issued by the core network is required to be fast, and at the same time, the horizontal positioning accuracy is not high, then the RNC can completely use the CELLID method to perform positioning processing at this time. In order to be able to meet the positioning response time requirements in the positioning request while satisfying the horizontal positioning accuracy

In this solution, the RNC must wait until the AGPS positioning measurement with the longest measurement time has the result before performing positioning calculations. When the horizontal positioning accuracy of the core network is not high, the positioning time is wasted.

Another disadvantage of this solution is that the positioning measurement of CELLID and OTDOA is successful, but if the UE returns the failure of the AGPS positioning measurement after a period of time, the positioning result reported by the RNC to the core network at this time will not be correct for the movement situation. If the UE is down, it cannot reflect the current actual location of the UE. What the RNC reports is only the previous positioning results of the UE.

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