A method (200; 300) comprising: a responder node of a wireless network participating in determining distances between several nodes in said wireless network, , the wireless network comprising a plurality of responder nodes, said determining comprising a two-way phase measurement between an initiator node (A) of said wireless network and said responder node (B-D) and a two-way phase measurement between said responder node (B; C; D) and each other responder node (C, D; B, D; B, C) of said plurality of responder nodes, said participating comprising performing, as a whole, in sequence in time, for each frequency in a plurality of frequencies, a measurement procedure (202-208; 302-308) comprising: said responder (B-D) node of said wireless network receiving (202; 302) from said initiator node (A) a carrier signal having said frequency, said responder node (B-D) performing a phase measurement of said carrier signal; said responder node (B, C, D), during a respective defined timeslot , transmitting (204-208; 304, 306, 308) a carrier signal having said frequency; and said responder node (B, C, D), receiving a carrier signal having said frequency transmitted, during respective defined time slots , by each said other responder node (C, D; B, D; B, C) and performing a phase measurement of said carrier signal. a responder node of a wireless network participating in determining distances between several nodes in said wireless network, , the wireless network comprising a plurality of responder nodes, said determining comprising a two-way phase measurement between an initiator node (A) of said wireless network and said responder node (B-D) and a two-way phase measurement between said responder node (B; C; D) and each other responder node (C, D; B, D; B, C) of said plurality of responder nodes, said participating comprising performing, as a whole, in sequence in time, for each frequency in a plurality of frequencies, a measurement procedure (202-208; 302-308) comprising: said responder (B-D) node of said wireless network receiving (202; 302) from said initiator node (A) a carrier signal having said frequency, said responder node (B-D) performing a phase measurement of said carrier signal; said responder node (B, C, D), during a respective defined timeslot , transmitting (204-208; 304, 306, 308) a carrier signal having said frequency; and said responder node (B, C, D), receiving a carrier signal having said frequency transmitted, during respective defined time slots , by each said other responder node (C, D; B, D; B, C) and performing a phase measurement of said carrier signal. said responder (B-D) node of said wireless network receiving (202; 302) from said initiator node (A) a carrier signal having said frequency, said responder node (B-D) performing a phase measurement of said carrier signal; said responder node (B, C, D), during a respective defined timeslot , transmitting (204-208; 304, 306, 308) a carrier signal having said frequency; and said responder node (B, C, D), receiving a carrier signal having said frequency transmitted, during respective defined time slots , by each said other responder node (C, D; B, D; B, C) and performing a phase measurement of said carrier signal. <EOS>