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Method, System, and Apparatus for Determining Uplink Transmission Power in Time Division Duplex System

  • US 20110267994A1
  • Filed: 04/27/2009
  • Published: 11/03/2011
  • Est. Priority Date: 04/25/2008
  • Status: Active Grant
First Claim
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1. A method for determining uplink transmission power in a Time Division Duplex system, comprising:

  • determining, by a User Equipment, a current uplink and downlink sub-frame allocation mode before transmitting data using an uplink sub-frame, obtaining a sub-frame mapping corresponding to the uplink and downlink sub-frame allocation mode, determining a downlink sub-frame used by a base station for transmitting a Transmission Power Control, TPC, command corresponding to the uplink sub-frame according to the sub-frame mapping, obtaining the TPC command received through the determined downlink sub-frame, and determining power for data transmission via the uplink sub-frame according to the TPC command;

    wherein, the TPC command corresponding to the uplink sub-frame is transmitted by the base station through the downlink sub-frame after the base station determines the current uplink and downlink sub-frame allocation mode, obtains the sub-frame mapping corresponding to the uplink and downlink sub-frame allocation mode, and determines the downlink sub-frame used for transmitting the TPC command corresponding to the uplink sub-frame according to the sub-frame mapping.

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