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System and method for retransmitting uplink data from a mobile terminal in a soft handover region in an asynchronous CDMA mobile communication system servicing an enhanced uplink dedicated transport channel

  • US 7,346,035 B2
  • Filed: 10/17/2003
  • Issued: 03/18/2008
  • Est. Priority Date: 03/24/2003
  • Status: Expired due to Fees
First Claim
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1. A method of retransmitting uplink packet data from a user equipment (UE) to Node Bs, the UE being placed in a handover region commonly covered by the Node Bs and transmitting data to the Node Bs on an enhanced uplink dedicated transport channel (EUDCH) and a radio network controller (RNC) controls the Node Bs, the method comprising the steps of:

  • transmitting from the Node Bs to the UE first response fields indicating whether the Node Bs have received good packet data or bad packet data, and second response fields indicating whether the RNC has received good packet data or bad packet data; and

    detecting the first and second response fields and determining retransmission of the uplink packet data according to the values of the response fields in the UE.

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