Patent ID: 8842581

Claim:
A method for a duplex communication comprising: allocating two or more frequency bands for information transfer between two entities comprising a first entity and a second entity, and transmitting, by the first entity, information in a first transfer direction on a first frequency band belonging to said two or more frequency bands and receiving, by the first entity, information in a second transfer direction on a second frequency hand belonging to said two or more frequency bands but different from the first frequency band, a frequency band time allocation concerning said two or more frequency bands being adaptable during the communication between said two entities, said method further comprising analyzing, by the second entity, on a basis of information received by the second entity on said first frequency band in the first transfer direction channel conditions for obtaining at least information about a transfer direction that is passive or unused while receiving said information, adjusting, by the second entity, on a basis of the channel conditions one or more transmission parameters for transmitting information at a certain time instant on said first frequency band in the second transfer direction, and receiving by the second entity, information at said certain time instant on said second frequency band in the first transfer direction, wherein said method is at least part of an overall time allocation of said first frequency band for said first transfer direction and said second transfer direction and of said second frequency band for said first transfer direction and said second transfer direction is based on a predetermined sequence.