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INTERFERENCE CANCELLATION METHOD, DATA SENDING METHOD, AND APPARATUSES IN LONG TERM EVOLUTION SYSTEM

  • US 20150078257A1
  • Filed: 11/25/2014
  • Published: 03/19/2015
  • Est. Priority Date: 05/25/2012
  • Status: Active Grant
First Claim
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1. An interference cancellation method in a Long Term Evolution system, the method comprising:

  • obtaining downlink cell-specific power information of a specific cell, wherein the specific cell is a neighboring cell or a serving cell;

    performing channel estimation based on a downlink cell-specific reference signal (CRS) of the specific cell, to obtain a channel estimation matrix of a specific physical channel, signal, or message of the specific cell;

    compensating the channel estimation matrix by using the downlink cell-specific power information of the specific cell, to obtain a new channel estimation matrix;

    reconstructing a received signal from the specific physical channel, signal, or message of the specific cell according to the new channel estimation matrix; and

    canceling, in an original signal received from a target cell, interference caused by the specific cell, which is not the target cell, in a received signal from a specific physical channel, signal, or message, wherein the target cell is a serving cell or a neighboring cell.

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