A method for increasing the communication capacity for the uplink data streams using a channel that is shared by all the spots for transmitting a beacon signal, in a satellite system comprising several terminals transmitting over a main regional SATVLAN channel, which channel is available for transmitting and receiving under a set of adjacent spots offering regional coverage, with each terminal having a communication requirement, a terminal being under a current spot served by a modem hub, characterised in that it comprises at least the following steps of: - each terminal transmitting and receiving its traffic over a SATVLAN channel connected to the current spot and at the same time transmitting an identification beacon signal over the regional SATVLAN channel, with a defined power level; - on the regional SATVLAN channel, a modem hub, upon receipt of a beacon, decoding the identity of a terminal and transmitting a message to a hub controller that contains the identifier of the received terminal; - for each spot processed by a modem hub, the hub controller periodically determining, on the basis of all the received messages, a list of terminals under an adjacent spot that generate interference in this spot; - when the list is empty, the hub controller designating said current spot as being a spot eligible for reuse by the hub controller and as being able to be reassigned in order to take over the communication of one or more terminals; - for each eligible spot, the hub controller assessing the additional capacity requirement for at least the terminals that are currently communicating that are covered by said eligible spot, and identifying the one or more terminals with a communication capacity requirement; - when the additional capacity requirement is verified in an eligible spot, the modem hub controller instantiating an additional modem hub, then connecting said additional modem hub to a radiofrequency chain with a frequency band that is used in the adjacent spot and notifying the modem hub responsible for the main or static SATVLAN channel that it can offload the terminals not generating interference towards the new instantiated additional modem hub. - each terminal transmitting and receiving its traffic over a SATVLAN channel connected to the current spot and at the same time transmitting an identification beacon signal over the regional SATVLAN channel, with a defined power level; - on the regional SATVLAN channel, a modem hub, upon receipt of a beacon, decoding the identity of a terminal and transmitting a message to a hub controller that contains the identifier of the received terminal; - for each spot processed by a modem hub, the hub controller periodically determining, on the basis of all the received messages, a list of terminals under an adjacent spot that generate interference in this spot; - when the list is empty, the hub controller designating said current spot as being a spot eligible for reuse by the hub controller and as being able to be reassigned in order to take over the communication of one or more terminals; - for each eligible spot, the hub controller assessing the additional capacity requirement for at least the terminals that are currently communicating that are covered by said eligible spot, and identifying the one or more terminals with a communication capacity requirement; - when the additional capacity requirement is verified in an eligible spot, the modem hub controller instantiating an additional modem hub, then connecting said additional modem hub to a radiofrequency chain with a frequency band that is used in the adjacent spot and notifying the modem hub responsible for the main or static SATVLAN channel that it can offload the terminals not generating interference towards the new instantiated additional modem hub.