Devices, nodes and methods in a wireless communication network

  • US 10,412,756 B2
  • Filed: 09/01/2017
  • Issued: 09/10/2019
  • Est. Priority Date: 03/03/2015
  • Status: Active Grant
First Claim
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1. A user device including:

  • a receiver configured to receive a plurality of downlink signals comprising a first downlink signal sent from an access node and a second downlink signal sent from the access node;

    a processor;

    a memory storing a program to be executed in the processor, the program comprising instructions for;

    measuring the first downlink signal at a first time instant,measuring the second downlink signal at a second time instant,determining a difference between the measured first downlink signal sent from the access node and the measured second downlink signal sent from the access node, andgenerating, when the difference exceeds a threshold, at least one uplink transmission; and

    a transmitter configured to transmit the at least one uplink transmission over an uplink random access channel (RACH).

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