Power compensation method, base station, and terminal equipment

  • US 9,591,629 B2
  • Filed: 01/02/2014
  • Issued: 03/07/2017
  • Est. Priority Date: 07/15/2011
  • Status: Active Grant
First Claim
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1. A base station, comprising:

  • a first resource configurator, configured to expand a UE-specific downlink control channel region to a downlink shared channel region, the expanded UE-specific downlink control channel region being configured in a first time slot of one or more resource block pairs;

    a first judger, configured to judge that a modulation mode of the expanded UE-specific downlink control channel is amplitude phase keying; and

    a first compensation information transmitter, configured to transmit to a terminal, when the judging result of the first judger is that the expanded UE-specific downlink control channel is amplitude phase keying modulated, a first ratio of an Energy Per Resource Element (EPRE) of the expanded UE-specific downlink control channel to the EPRE of a demodulation reference signal in the first time slot occupied by the expanded UE-specific downlink control channel, the first ratio being provided to the terminal for power compensation for decoding a received downlink control channel data transmitted by the base station, wherein the judging result of the first judger is that the expanded UE-specific downlink control channel is amplitude phase keying modulated;

    a second judger configured to judge that the downlink shared channel region is multiplexed in the one or more resource block pairs and is configured in regions of a second time slot of the one or more resource block pairs and to judge that the power of a demodulation reference signal in the first time slot occupied by the expanded UE-specific downlink control channel is different from the power of a demodulation reference signal in the second time slot occupied by the downlink shared channel;

    a second compensation information transmitter, configured to transmit to the terminal, a second ratio of an EPRE of the demodulation reference signal in the first time slot occupied by the expanded UE-specific downlink control channel to the EPRE of the demodulation reference signal in the second time slot, the second ratio being provided to the terminal for power compensation for performing channel estimation to a received demodulation reference signal.

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