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Method and terminal for performing up-link transmission at reduced power

  • US 9,635,607 B2
  • Filed: 08/02/2013
  • Issued: 04/25/2017
  • Est. Priority Date: 08/13/2012
  • Status: Active Grant
First Claim
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1. A method for performing an uplink transmission at a reduced power, the method comprising:

  • receiving system information from a base station, the system information including information on an operating band and an uplink bandwidth;

    receiving a network signal regarding additional power reduction from the base station;

    determining a power reduction amount additionally required to reduce interference to a band of a public safety network adjacently positioned to the operating band according to the network signal, when the operating band is within a range of 777 MHz to 787 MHz and the uplink bandwidth is 5 MHz in a range of 777 MHz to 782 MHz; and

    performing the uplink transmission at the reduced power based on the determined power reduction amount,wherein a bandwidth of a protection band between the band of the public safety network and the operating band is 1 MHz,wherein the network signal regarding additional power reduction for the protection band of 1 MHz is different from a signal regarding additional power reduction for another protection band of 2 MHz, andwherein a power reduction amount determined for the protection band of 1 MHz is larger than a power reduction amount for the another protection band of 2 MHz.

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