A method in a wireless communication network comprising: a mixture of base stations (510, 520, 530), wherein the base stations (510, 520, 530) support at least LTE FDD mode, at least HSPA+ mode, or at least LTE FDD mode and HSPA+ mode, wherein the base stations (510, 520, 530) support FD-FDD and HD-FDD duplex modes in the respective mode, wherein a first base station supports both the FD-FDD and the HD-FDD duplex modes of operation and wherein a second and third base station (520, 530) support the FD-FDD duplex mode only, a mixture of user equipments (540, 550) supporting FD-FDD and HD-FDD duplex modes and which communicate with the mixture of base stations, wherein a first user equipment supports the FD-FDD duplex mode of operation and can communicate with any of the first to third base stations (510, 520, 530) and wherein a second user equipment supports the HD-FDD duplex mode and can only communicate with the first base station and cannot connect to either of the second and third base stations (520, 530), wherein the method comprises: signaling by the base stations (510, 520, 530) to the user equipments (540, 550) implicit or explicit information on support of half duplex frequency division duplex HD-FDD, operation, such that the second user equipment is allowed to detect that the second and third base stations (520, 530) don't support HD-FDD duplex mode and to avoid trying to connect to the second and third base stations (520, 530). a mixture of base stations (510, 520, 530), wherein the base stations (510, 520, 530) support at least LTE FDD mode, at least HSPA+ mode, or at least LTE FDD mode and HSPA+ mode, wherein the base stations (510, 520, 530) support FD-FDD and HD-FDD duplex modes in the respective mode, wherein a first base station supports both the FD-FDD and the HD-FDD duplex modes of operation and wherein a second and third base station (520, 530) support the FD-FDD duplex mode only, a mixture of user equipments (540, 550) supporting FD-FDD and HD-FDD duplex modes and which communicate with the mixture of base stations, wherein a first user equipment supports the FD-FDD duplex mode of operation and can communicate with any of the first to third base stations (510, 520, 530) and wherein a second user equipment supports the HD-FDD duplex mode and can only communicate with the first base station and cannot connect to either of the second and third base stations (520, 530), wherein the method comprises: signaling by the base stations (510, 520, 530) to the user equipments (540, 550) implicit or explicit information on support of half duplex frequency division duplex HD-FDD, operation, such that the second user equipment is allowed to detect that the second and third base stations (520, 530) don't support HD-FDD duplex mode and to avoid trying to connect to the second and third base stations (520, 530). signaling by the base stations (510, 520, 530) to the user equipments (540, 550) implicit or explicit information on support of half duplex frequency division duplex HD-FDD, operation, such that the second user equipment is allowed to detect that the second and third base stations (520, 530) don't support HD-FDD duplex mode and to avoid trying to connect to the second and third base stations (520, 530).