FIELD: radio engineering, communication.
SUBSTANCE: channel allocation method for an intercommunication device includes: according to a subnetwork to which the intercommunication device belongs, detecting corresponding subnetwork resource information, determining the control channel and service channels which can be used by the intercommunication device, wherein the number of service channels is greater than or equal to 2. Different subnetworks correspond to different channel resources; and waiting on the control channel in case of a wait mode. The communication method and system for the intercommunication device, as well as the intercommunication device are disclosed in the present invention.
EFFECT: high efficiency of spectrum usage, high adaptability in the presence of channel interference, shorter time for making a call and low probability of call collision.
13 cl, 22 dwg
