A method of operating a first wireless terminal (110, 112, 114, 116, 118, 120, 300, 504, 506, 604, 606, 904, 906, 908, 910, 912, 914, 916, 918, 920, 922, 924, 926, 1004, 1006, 1008, 1010, 1012, 1014, 1016, 1018, 1020, 1022, 1024, 1026, 1200) comprising: transmitting first peer to peer discovery expression information to a base station (102, 502, 602, 902, 1002), said first peer to peer discovery expression information communicating a first peer to peer discovery expression or an identifier identifying said first peer to peer discovery expression, the first peer to peer discovery expression to be communicated by said base station (102, 502, 602, 902, 1002) in association with a first index (515, 615) and a first peer to peer communications resource identifier identifying a first peer to peer discovery communications resource (714, 716, 718, 814, 816, 818, 820) being used by said first wireless terminal (110, 112, 114, 116, 118, 120, 300, 504, 506, 604, 606, 904, 906, 908, 910, 912, 914, 916, 918, 920, 922, 924, 926, 1004, 1006, 1008, 1010, 1012, 1014, 1016, 1018, 1020, 1022, 1024, 1026, 1200); receiving from said base station (102, 502, 602, 902, 1002), in response to the transmitted first peer to peer discovery expression information, said first index (515, 615) associated with said first peer to peer discovery expression and with the first peer to peer discovery communications resource (714, 716, 718, 814, 816, 818, 820) being used by said first wireless terminal (110, 112, 114, 116, 118, 120, 300, 504, 506, 604, 606, 904, 906, 908, 910, 912, 914, 916, 918, 920, 922, 924, 926, 1004, 1006, 1008, 1010, 1012, 1014, 1016, 1018, 1020, 1022, 1024, 1026, 1200); and transmitting said first index (515, 615) in the first peer to peer discovery communications resource (714, 716, 718, 814, 816, 818, 820) identified by said first peer to peer communications resource identifier. transmitting first peer to peer discovery expression information to a base station (102, 502, 602, 902, 1002), said first peer to peer discovery expression information communicating a first peer to peer discovery expression or an identifier identifying said first peer to peer discovery expression, the first peer to peer discovery expression to be communicated by said base station (102, 502, 602, 902, 1002) in association with a first index (515, 615) and a first peer to peer communications resource identifier identifying a first peer to peer discovery communications resource (714, 716, 718, 814, 816, 818, 820) being used by said first wireless terminal (110, 112, 114, 116, 118, 120, 300, 504, 506, 604, 606, 904, 906, 908, 910, 912, 914, 916, 918, 920, 922, 924, 926, 1004, 1006, 1008, 1010, 1012, 1014, 1016, 1018, 1020, 1022, 1024, 1026, 1200); receiving from said base station (102, 502, 602, 902, 1002), in response to the transmitted first peer to peer discovery expression information, said first index (515, 615) associated with said first peer to peer discovery expression and with the first peer to peer discovery communications resource (714, 716, 718, 814, 816, 818, 820) being used by said first wireless terminal (110, 112, 114, 116, 118, 120, 300, 504, 506, 604, 606, 904, 906, 908, 910, 912, 914, 916, 918, 920, 922, 924, 926, 1004, 1006, 1008, 1010, 1012, 1014, 1016, 1018, 1020, 1022, 1024, 1026, 1200); and transmitting said first index (515, 615) in the first peer to peer discovery communications resource (714, 716, 718, 814, 816, 818, 820) identified by said first peer to peer communications resource identifier.