Position determination of a wireless device

A method for position determination of a wireless device, the method being performed by a mobility management node, the method comprising:

• detecting an indication of a wireless device being operatively connected to a source radio access technology (RAT) the indication requiring a handover of the wireless device to a target RAT;
• 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
• sending, upon fulfilment of a criterion relating to the indication of the wireless device, a LCS-AP location abort request message to the E-SMLC.

A wireless device for position determination of the wireless device, the wireless device comprising a processing unit configured to:

• detect, whilst being operatively connected to a source radio access technology (RAT) an indicator requiring a handover of the wireless device to a target RAT;
• start 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;
• keep the positioning measurements of the positioning detection procedure whilst the wireless device being handed over from the source RAT to the target RAT;
• and
• continue the positioning detection procedure using the positioning measurements whilst being operatively connected to the target RAT.

A mobility management node for position determination of a wireless device, the mobility management node comprising a processing unit configured to:

• detect an indication of a wireless device being operatively connected to a source radio access technology (RAT) the indication requiring a handover of the wireless device to a target RAT;
• 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
• send, upon fulfilment of a criterion relating to the indication of the wireless device, a LCS-AP location abort request message to the E-SMLC.

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 processing unit of the wireless device, causes the processing unit to:

• detect, whilst being operatively connected to a source radio access technology (RAT) an indicator requiring a handover of the wireless device to a target RAT;
• start 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;
• keep the positioning measurements of the positioning detection procedure whilst the wireless device being handed over from the source RAT to the target RAT;
• and
• continue the positioning detection procedure using the positioning measurements whilst being operatively connected to the target RAT.

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 processing unit of a mobility management node, causes the processing unit to:

• detect an indication of a wireless device being operatively connected to a source radio access technology (RAT) the indication requiring a handover of the wireless device to a target RAT;
• 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
• send, upon fulfilment of a criterion relating to the indication of the wireless device, a LCS-AP location abort request message to the E-SMLC.