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Method for performing a cooperative operation between heterogeneous networks and device for same

  • US 10,015,698 B2
  • Filed: 06/09/2016
  • Issued: 07/03/2018
  • Est. Priority Date: 07/12/2011
  • Status: Active Grant
First Claim
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1. A method for offloading uplink data by a user equipment in a wireless communication system that performs cooperative operations between heterogeneous networks, the method comprising:

  • receiving, from a base station, first information related to a set of candidate access points (APs) configured by the base station;

    measuring the set of candidate APs;

    transmitting a measurement report to the base station;

    receiving, from the base station, a command, the command instructing the user equipment to offload uplink data to a wireless LAN (WLAN),wherein the command is transmitted from the base station when a signal strength of the WLAN is greater than a predefined threshold value;

    receiving, from the base station, second information related to at least one access point (AP), the at least one AP is configured for offloading by the base station;

    performing a connection procedure with an AP of the at least one AP based on the received second information;

    determining traffic having a specific quality of service (QoS) which is offloadable to the WLAN; and

    offloading the uplink data corresponding to the determined traffic to the AP according to the command while maintaining a connection state with the base station.

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