Patent ID: 9042909
Filing Date: 2015-05-26
Classification: H04W

Abstract:
1. A location method for obtaining a location of a terminal comprising: when a gateway mobile location center is unable to obtain an address of a mobile switching center to which the terminal belongs from a home location register in a core network by sending a location selecting routing signaling (MAP SRI FOR LCS), the gateway mobile location center sending a short message to trigger the home location register to update the location of the terminal and obtaining the address of the mobile switching center to which the terminal belongs, the gateway mobile location center obtaining location parameters of the terminal by sending a location request signaling to the mobile switching center to which the terminal belongs, and calculating location information of the terminal; wherein the gateway mobile location center being unable to obtain the address of the mobile switching center to which the terminal belongs from the home location register in the core network by sending the location selectin routing signaling means that: the gateway mobile location center learns that the home location register does not support a location selectin routing function from error cause information returned by the home location register after sending the location selecting routing signaling; the step of sending the short message to trigger the home location register to update the location of the terminal and obtaining the address of the mobile switching center to which the terminal belongs comprises: the gateway mobile location center sending a short message selecting routing message to the home location register, and the home location register updating the location of the terminal after receiving the selecting routing message and returning a short message selecting routing reply message carrying the address of the mobile switching center to which the terminal belongs; or, the gateway mobile location center being unable to obtain the address of the mobile switching center to which the terminal belongs from the home location register in the core network by sending the location selecting routing signaling means that: the gateway mobile location center learns that the home location register does not support current mobile application part protocol version from the error cause information returned by the home location register after sending the location selecting raining signaling; the step of sending the short message to trigger the home location register to update the location of the terminal and obtaining the address of the mobile switching center to which the terminal belongs comprises: the gateway mobile location center sending the home location register a short message selecting routing message, the mobile application part protocol version of which is lower than current mobile application part protocol version, and the home location register determining that the mobile application part protocol version of the selecting routing message is supported by the home location register after receiving the selecting routing message, updating the location of the terminal and returning a short message selecting routing reply message carrying the address of the mobile switching center to which the terminal belongs.