Patent ID: 7254127

Claim:
Method for a location service provided by a location node in a cellular network wherein Mobile Stations (MSs) are being able to operate in both a packet switched and a circuit switched mode, the MSs are attached to a first serving node for the packet switched mode, and to a second serving node for the circuit switched mode, the cellular network includes a register containing information concerning the location of the MSs, comprising the steps of: a) in the event one of the MSs attaches to the first serving node, informing the register whether the MS supports the location service in packet switched mode, or in the event one of the MSs attaches to the second serving node, informing the register whether the MS supports the location service in circuit switched mode; and b) when a location request for the MS is received at the location node, requesting the register for serving node address, and further determining whether the MS supports the location service in packet switched mode; in response to a determination that the MS does not support the location service in packet switched mode, informing the location node that the location request shall be directed to the second serving node.