A method for sharing a communication channel between a first network and a second network, wherein each network contains one or more nodes (1, 2, 4, 5), the method comprising: transmitting, by a network node (1, 2) of the first network, a first known sequence from the first network to the second network, in response to the first network detecting the second network sharing the communication channel; measuring, by the second network, an interfering power that arrives at the second network due to the transmission of the first known sequence to the second network; calculating, by the second network, a first amount of information transmitted per second upon receiving the first known sequence from said network node of the first network, wherein the method further comprises: transmitting, by a network node (4, 5) of the second network, a second known sequence from the second network to the first network in response to the second network detecting the first network sharing the communication channel; measuring, by the first network, an interfering power that arrives at the first network due to the transmission of the second known sequence to the first network; calculating, by the first network, a second amount of information transmitted per second upon receiving the second known sequence from said network node of the second network, wherein the method further comprises: sending, by the first network, a message to the second network in response to the second amount of information transmitted per second being lower than a pre-set threshold of unification of the first network, wherein the message comprises a request to effect a coordination between both networks; accepting, by the second network, the request to effect a coordination between both networks, in response to the first amount of information transmitted per second being lower than the threshold of unification, whereby both networks act in coordination upon accepting the request, wherein the networks are coordinated such that only one of the networks is transmitting at a certain time. transmitting, by a network node (1, 2) of the first network, a first known sequence from the first network to the second network, in response to the first network detecting the second network sharing the communication channel; measuring, by the second network, an interfering power that arrives at the second network due to the transmission of the first known sequence to the second network; calculating, by the second network, a first amount of information transmitted per second upon receiving the first known sequence from said network node of the first network, transmitting, by a network node (4, 5) of the second network, a second known sequence from the second network to the first network in response to the second network detecting the first network sharing the communication channel; measuring, by the first network, an interfering power that arrives at the first network due to the transmission of the second known sequence to the first network; calculating, by the first network, a second amount of information transmitted per second upon receiving the second known sequence from said network node of the second network, sending, by the first network, a message to the second network in response to the second amount of information transmitted per second being lower than a pre-set threshold of unification of the first network, wherein the message comprises a request to effect a coordination between both networks; accepting, by the second network, the request to effect a coordination between both networks, in response to the first amount of information transmitted per second being lower than the threshold of unification, whereby both networks act in coordination upon accepting the request, wherein the networks are coordinated such that only one of the networks is transmitting at a certain time.