A method for supplying response data in the context of a location-based service, wherein a requester sends a request definable by means of a request information item to a request receiver and the request receiver in response to the request provides response data which is appropriate with regard to the request information item, in which - the request is defined by detail request information items, which comprise a location request information item (Koor 10) and an offer request information item (AASio); - global request information items are formed such that the global request information items comprise the detail request information items, wherein the global request information items comprise a generalized location request information item (Koor 10, Koor 10', Koor 10 ") comprising the location request information item (Koor 10); - the global request information items are sent to the request receiver as a request information item and - the response data received by the request receiver is evaluated with regard to relevance to the detail request information items, wherein the generalized location request information item is generated by a third instance, wherein - the third instance is an operator of a mobile radio network via which a data communication is carried out between the requester and the request receiver, and wherein - a current position of the requester is present as a location request information item (Koorio), wherein the generalized location request information item comprises, in addition to the current position of the requester, further current positions (Koor 10', Koor 10") of other requesters (10', 10") different from the requester, - the global request information items comprise a generalized offer request information item (AAS 10, AAS 10', AAS 10") comprising the offer request information item (AAS 10), - the offer request information item (AAS 10) is transmitted in encrypted form from the requester to the request receiver in such a way that the third instance cannot unambiguously associate an offer request information item (AAS 10) with the requester, wherein the detail request information item comprises an offer request information item (AAS 10) in the form of an offer request keyword and that the generalized offer request information item (AAS 10, AAS 10', AAS 10") comprises, in addition to the offer request keyword, a plurality of different keywords, wherein the plurality of different keywords, which are added to the offer request keyword to form the generalized offer request information item, correspond to request keywords of other requesters (10'; 10") different from the requester, wherein the response data are evaluated by the requester with regard to the offer request information items. - the request is defined by detail request information items, which comprise a location request information item (Koor 10) and an offer request information item (AASio); - global request information items are formed such that the global request information items comprise the detail request information items, wherein the global request information items comprise a generalized location request information item (Koor 10, Koor 10', Koor 10 ") comprising the location request information item (Koor 10); - the global request information items are sent to the request receiver as a request information item and - the response data received by the request receiver is evaluated with regard to relevance to the detail request information items, wherein the generalized location request information item is generated by a third instance, wherein - the third instance is an operator of a mobile radio network via which a data communication is carried out between the requester and the request receiver, and wherein - a current position of the requester is present as a location request information item (Koorio), wherein the generalized location request information item comprises, in addition to the current position of the requester, further current positions (Koor 10', Koor 10") of other requesters (10', 10") different from the requester, - the global request information items comprise a generalized offer request information item (AAS 10, AAS 10', AAS 10") comprising the offer request information item (AAS 10), - the offer request information item (AAS 10) is transmitted in encrypted form from the requester to the request receiver in such a way that the third instance cannot unambiguously associate an offer request information item (AAS 10) with the requester, wherein the detail request information item comprises an offer request information item (AAS 10) in the form of an offer request keyword and that the generalized offer request information item (AAS 10, AAS 10', AAS 10") comprises, in addition to the offer request keyword, a plurality of different keywords, wherein the plurality of different keywords, which are added to the offer request keyword to form the generalized offer request information item, correspond to request keywords of other requesters (10'; 10") different from the requester, wherein the response data are evaluated by the requester with regard to the offer request information items.