A method performed by a wireless terminal in a multiple carrier spread spectrum system cell which includes a base station (202, 602) which transmits at least two carrier signals, wherein each of said at least two carrier signals has a different carrier frequency and is transmitted at a different nominal power level (203, 223) to provide a cellular coverage area (206, 226, 604, 606) of a different size, the method comprising: communicating with said base station using a first carrier signal among said at least two carrier signals over a period of time; during said period of time, periodically performing the following steps: measuring signal strength from the base station in each of said at least two carrier signals; measuring signal strength from an adjacent base station in each of said at least two carrier frequencies; identifying, among said at least two carrier frequencies, the carrier frequencies for which the signal strength difference between the base station and the adjacent base station is lower than a predefined threshold, and classifying said identified carrier frequencies as boundary carrier frequencies; determining, among said at least two carrier frequencies but excluding said boundary carrier frequencies, the carrier frequencies which have an acceptable signal strength, and classifying said determined carrier frequencies as candidate carrier frequencies; and selecting, amongst the candidate carrier frequencies, a carrier frequency according to a predefined criterion; initiating an intercarrier handoff between carrier signals used by said base station, wherein the intercarrier handoff is performed by switching from the first carrier signal to a carrier signal having the selected carrier frequency. communicating with said base station using a first carrier signal among said at least two carrier signals over a period of time; during said period of time, periodically performing the following steps: measuring signal strength from the base station in each of said at least two carrier signals; measuring signal strength from an adjacent base station in each of said at least two carrier frequencies; identifying, among said at least two carrier frequencies, the carrier frequencies for which the signal strength difference between the base station and the adjacent base station is lower than a predefined threshold, and classifying said identified carrier frequencies as boundary carrier frequencies; determining, among said at least two carrier frequencies but excluding said boundary carrier frequencies, the carrier frequencies which have an acceptable signal strength, and classifying said determined carrier frequencies as candidate carrier frequencies; and selecting, amongst the candidate carrier frequencies, a carrier frequency according to a predefined criterion; initiating an intercarrier handoff between carrier signals used by said base station, wherein the intercarrier handoff is performed by switching from the first carrier signal to a carrier signal having the selected carrier frequency. measuring signal strength from the base station in each of said at least two carrier signals; measuring signal strength from an adjacent base station in each of said at least two carrier frequencies; identifying, among said at least two carrier frequencies, the carrier frequencies for which the signal strength difference between the base station and the adjacent base station is lower than a predefined threshold, and classifying said identified carrier frequencies as boundary carrier frequencies; determining, among said at least two carrier frequencies but excluding said boundary carrier frequencies, the carrier frequencies which have an acceptable signal strength, and classifying said determined carrier frequencies as candidate carrier frequencies; and selecting, amongst the candidate carrier frequencies, a carrier frequency according to a predefined criterion; initiating an intercarrier handoff between carrier signals used by said base station, wherein the intercarrier handoff is performed by switching from the first carrier signal to a carrier signal having the selected carrier frequency.