METHOD AND APPARATUS FOR IMPROVING RANDOM ACCESS PROCEDURE IN A WIRELESS COMMUNICATION SYSTEM
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United States of America Patent
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Jul 28, 2017
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Jul 28, 2016
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Abstract
A method and apparatus are disclosed, from the perspective of the UE, for performing random access procedure. In one embodiment, the method includes the UE receives a first back-off information from the network in a broadcast message, wherein the first back-off information includes a start offset of back-off interval. The method further includes the UE transmits a first preamble to the network. In addition, the method includes the UE determines a back-off interval based on the first back-off information and a second back-off information, wherein the second back-off information is received when the UE monitors a response for the first preamble. The method also includes the UE transmits a second preamble to the network after the back-off interval is finished.
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