22.0713GPPLocation Services (LCS)Release 17Service descriptionStage 1TS
LCS shall support location of any Target UE that is idle or has established any CS teleservice, bearer service or PS session.
Location of a GPRS terminal or a UE using SMS may be supported.
Provision of location services to assist supplementary services and CAMEL is outside the scope of this specification. The operation of location services shall be independent of other services – including Number Portability, private numbering, CAMEL, supplementary services, teleservices, and bearer services.