A method performed by a network control entity for enabling access to a plurality of wireless tags (301, 302, 303) in a wireless communications network, wherein the wireless communications network comprises two or more access points, APs (110, 111, 112), the method comprising: allocating a unique frequency shift (Δf n) to each wireless tag from said plurality of wireless tags (301, 302, 303), respectively, wherein the allocated frequency shift (Δf n) is to be used by at least two wireless tags from said plurality of wireless tags (301, 302, 303) when reflecting the second radio signal using the first transmitted radio frequency signal; configuring at least one first AP (110, 111, 112) to transmit a first radio frequency signal, with frequency f, in a first time period (TS#3); and configuring at least one second AP (110, 111, 112) to receive, in the first time period (TS#3), at least one second radio signal reflected from the at least two wireless tags (301, 302, 303) using the transmitted first radio frequency signal, wherein the configuring further comprises: configuring the at least one second AP (110, 111, 112) to allocate two subsets of frequency resources (f-Δf n, f+Δf n) within a determined set of frequency resources (ΔF) to the at least two wireless tags (301, 302, 303) in the first time period (TS#3), and configuring the at least one second AP (110, 111, 112) to receive, in the first time period (TS#3), the at least one second radio signal reflected from the at least two wireless tags (301, 302, 303) in at least one of the allocated two subsets of frequency resources (f-Δf n, f+Δf n). allocating a unique frequency shift (Δf n) to each wireless tag from said plurality of wireless tags (301, 302, 303), respectively, wherein the allocated frequency shift (Δf n) is to be used by at least two wireless tags from said plurality of wireless tags (301, 302, 303) when reflecting the second radio signal using the first transmitted radio frequency signal; configuring at least one first AP (110, 111, 112) to transmit a first radio frequency signal, with frequency f, in a first time period (TS#3); and configuring at least one second AP (110, 111, 112) to receive, in the first time period (TS#3), at least one second radio signal reflected from the at least two wireless tags (301, 302, 303) using the transmitted first radio frequency signal, wherein the configuring further comprises: configuring the at least one second AP (110, 111, 112) to allocate two subsets of frequency resources (f-Δf n, f+Δf n) within a determined set of frequency resources (ΔF) to the at least two wireless tags (301, 302, 303) in the first time period (TS#3), and configuring the at least one second AP (110, 111, 112) to receive, in the first time period (TS#3), the at least one second radio signal reflected from the at least two wireless tags (301, 302, 303) in at least one of the allocated two subsets of frequency resources (f-Δf n, f+Δf n). configuring the at least one second AP (110, 111, 112) to allocate two subsets of frequency resources (f-Δf n, f+Δf n) within a determined set of frequency resources (ΔF) to the at least two wireless tags (301, 302, 303) in the first time period (TS#3), and configuring the at least one second AP (110, 111, 112) to receive, in the first time period (TS#3), the at least one second radio signal reflected from the at least two wireless tags (301, 302, 303) in at least one of the allocated two subsets of frequency resources (f-Δf n, f+Δf n).