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User equipment and a method for power control of uplink transmissions

  • US 9,872,256 B2
  • Filed: 07/15/2013
  • Issued: 01/16/2018
  • Est. Priority Date: 01/10/2013
  • Status: Active Grant
First Claim
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1. A method performed by a User Equipment, UE, for power control of uplink transmissions, the UE being connected in dual connectivity mode to at least a first network node and a second network node, the method comprising:

  • determining to perform a first uplink transmission to the first network node and a second uplink transmission to the second network node, the uplink transmissions to be performed simultaneously,determining a respective first and second uplink transmission power for the first and the second uplink transmission,determining if the first and the second uplink transmission can be performed without exceeding a first or second maximum tolerance value and a maximum transmission power, and if not, transmitting the transmission having the highest priority at a transmission power indicated by the maximum tolerance value for that transmission, andtransmitting the first and the second uplink transmissions at the first and the second uplink transmission power respectively when the sum of the first and second uplink transmission power is below the maximum transmission power,wherein the first and second maximum tolerance values indicate to the UE the respective maximum allowed deviations between an expected transmission power and an actual transmission power of the first and second uplink transmissions.

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