METHOD FOR ENERGY EFFICIENT SPECTRUM SHARING

Abstract

An apparatus comprising: means for providing a first cell being a dynamic spectrum sharing cell supporting at least a first radio access technology, wherein at least one random access preamble indicating a request to be redirected to a second cell supporting at least a second radio access technology is stored in the apparatus; means for transmitting signaling information to at least one user equipment via the first radio access technology, wherein said signaling information comprises information for establishing a connection to the second cell; means for receiving a random access preamble from at least one user equipment via the first radio access technology, said random access preamble indicating a request for the user equipment to be redirected tothe second cell supporting at least the second radio access technology; means for transmitting an indication to the second cell to transition to an active state; and means for transmitting a random access preamble response to the user equipment via the first radio access technology, wherein the random access preamble response comprises signaling for re-directing the user equipment to camp on a second cell supporting at least the second radio access technology.

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