METHOD, SYSTEM AND DEVICE FOR SCHEDULING NON-CONTENTION BASED RANDOM ACCESS AND TRANSMITTING PREAMBLE
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United States of America Patent
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Issued Date -
Dec 6, 2012
app pub date -
Jan 28, 2011
filing date -
Feb 11, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method, system and device for scheduling a non-contention based random access and transmitting a preamble are provided in the present invention. The present invention belongs to wireless telecommunication field and is used to solve a problem that the prior art is not able to support cross carrier non-competing random access scheduled by a Physical Downlink Control Channel (PDCCH). In the present invention, a Base Station (BS) adds Uplink Component Carrier (ul cc) identification information in a Downlink Control Information (DCI) signaling which is used to schedule a User Equipment (UE) to implement non-competing random access; and sends the UE the DCI signaling through the PDCCH. After detecting the DCI signaling, the UE sends the network side a preamble sequence on a UL CC corresponding to the UL CC identification. With the present invention, support is provided to realize cross carrier non-competing random access scheduled by PDCCH.
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