Mimo-adapted distributed antenna system
AssigneeMobileAccess Networks Ltd.
InventorsIsaac Shapira, Ofer Saban, Yehuda Holtzman, Dror Harel
Life of this patent
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Abstract
Methods and systems for carrying different signals required for MIMO communication using a single coaxial cable between two endpoints of a distributed antenna system (DAS) network. Original MIMO signals having the same frequency are frequency-separated at a first endpoint of the network. The frequency-separated signals are propagated together over the single coaxial cable and then reconstructed to their original frequency at a second endpoint of the network.
Claims14
A method for propagating multiple signals over a distributed antenna system (DAS) network, comprising the steps of:
- a) providing a plurality n of original signals;
- b) at a first endpoint of the DAS network, frequency shifting n−1 of the signals into signals with n−1 separate frequencies, with one signal left un-shifted in frequency;
- c) propagating the n−1 frequency shifted signals and the un-shifted frequency signal together over a single coaxial cable extending for at least part of a path from the first endpoint to a second endpoint of the DAS network;
- and
- d) at the second endpoint, reconstructing the original signals.
A method for propagating multiple signals over a distributed antenna system (DAS) network, comprising the steps of:
- a) providing a plurality n of original signals;
- b) at a first endpoint of the DAS network, frequency shifting n of the signals into signals with n separate frequencies;
- c) propagating the n frequency shifted signals over a single coaxial cable extending for at least part of a path from the first endpoint to a second endpoint of the DAS network;
- and
- d) at the second endpoint, reconstructing the original signals.
- e) providing DC power for powering the remote units through the coaxial cables.
Dependencies are inferred from the claim text.