FIELD: radio engineering, communication.
SUBSTANCE: wireless terminals for use with a multi-mode base station which supports a transmit standby mode and an active mode are described. The transmit standby mode of base station operation is a low power and low interference level of operation compared to active mode. In transmit standby mode at least some of the synchronisation signalling such as pilot tone signalling is reduced in power level and/or rate compared to the active mode. In transmit standby mode, the base station has no active state registered wireless terminals being serviced but may have some sleep state registered wireless terminals being serviced. Mode transitions from active to transmit standby may be in response to: a detected period of inactivity, scheduling information, base station mode change signals and/or detected wireless terminal state transition. Mode transitions from transmit standby to active may be in response to: scheduling information, access signals, wake-up signals from the wireless terminal, handover signals etc.
EFFECT: executing and supporting operations of a multi-mode base station.
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