Position determination of a wireless device
First Claim
1. A method for position determination of a wireless device, the method being performed by a mobility management node, the method comprising:
- detecting an indicator of a wireless device being operatively connected to a source radio access technology (RAT) the indicator requiring a handover of the wireless device to a target RAT and further requiring a position of the wireless device to be determined in case the mobility management node detects an Extended Service Request for mobile originating Circuit Switched Fallback (CSFB) indicating that a purpose is an emergency call;
in response thereto;
sending a Location Services Application Protocol (LCS-AP) location request message to an evolved serving mobile location center (E-SMLC) of the wireless device; and
thensending, upon fulfillment of a criterion relating to the indicator of the wireless device, a LCS-AP location abort request message to the E-SMLC.
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Accused Products
Abstract
There is provided a method for position determination of a wireless device. The method is performed by the wireless device. The method comprises detecting, whilst being operatively connected to a source radio access technology (RAT) an indicator requiring a handover of the wireless device to a target RAT. The method comprises starting a positioning detection procedure of the wireless device before being handed over to the target RAT, the positioning detection procedure involving processing of positioning measurements. The method comprises keeping the positioning measurements of the positioning detection procedure whilst the wireless device being handed over from the source RAT to the target RAT. The method comprises continuing the positioning detection procedure using the positioning measurements whilst being operatively connected to the target RAT.
20 Citations
8 Claims
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1. A method for position determination of a wireless device, the method being performed by a mobility management node, the method comprising:
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detecting an indicator of a wireless device being operatively connected to a source radio access technology (RAT) the indicator requiring a handover of the wireless device to a target RAT and further requiring a position of the wireless device to be determined in case the mobility management node detects an Extended Service Request for mobile originating Circuit Switched Fallback (CSFB) indicating that a purpose is an emergency call;
in response thereto;sending a Location Services Application Protocol (LCS-AP) location request message to an evolved serving mobile location center (E-SMLC) of the wireless device; and
thensending, upon fulfillment of a criterion relating to the indicator of the wireless device, a LCS-AP location abort request message to the E-SMLC. - View Dependent Claims (2, 3, 4, 5)
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6. A mobility management node for position determination of a wireless device, the mobility management node comprising a processor configured to:
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detect an indicator of a wireless device being operatively connected to a source radio access technology (RAT) the indicator requiring a handover of the wireless device to a target RAT and further requiring a position of the wireless device to be determined in case the mobility management node detects an Extended Service Request for mobile originating Circuit Switched Fallback (CSFB) indicating that a purpose is an emergency call;
in response thereto;send a Location Services Application Protocol (LCS-AP) location request message to an evolved serving mobile location center (E-SMLC) of the wireless device; and
thensend, upon fulfillment of a criterion relating to the indicator of the wireless device, a LCS-AP location abort request message to the E-SMLC. - View Dependent Claims (7)
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8. A nontransitory computer-readable medium comprising a computer program for position determination of a wireless device, the computer program comprising computer program code which, when run on a processor of a mobility management node, causes the processor to:
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detect an indicator of a wireless device being operatively connected to a source radio access technology (RAT) the indicator requiring a handover of the wireless device to a target RAT and further requiring a position of the wireless device to be determined in case the mobility management node detects an Extended Service Request for mobile originating Circuit Switched Fallback (CSFB) indicating that a purpose is an emergency call;
in response thereto;send a Location Services Application Protocol (LCS-AP) location request message to an evolved serving mobile location center, E-SMLC, of the wireless device; and
thensend, upon fulfillment of a criterion relating to the indicator of the wireless device, a LCS-AP location abort request message to the E-SMLC.
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Specification