METHOD FOR ASSISTING A WIRELESS DEVICE TO PERFORM UPLINK TRANSMISSIONS
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United States of America Patent
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Jul 4, 2014
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Jul 4, 2014
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Abstract
A first Radio Network Node (RNN), and a method therein, for assisting a wireless device to perform an uplink transmission to a second RNN. The first RNN, the second RNN and the wireless device are operated in a wireless communications network. The first RNN is configured to serve the wireless device when located in a first cell and the second RNN is configured to serve the wireless device when located in a second cell, wherein the second cell has a size that is below a threshold and arranged to at least partly overlap the first cell. Further, the first RNN is adapted to trigger the wireless device to perform the uplink transmission using a configured Timing Advance (TA) value and a guard time without performing a preceding random access procedure in the second cell towards the second RNN.
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