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Methods and nodes of a distributed base station system for improved downlink transmission

  • US 10,707,955 B2
  • Filed: 11/27/2015
  • Issued: 07/07/2020
  • Est. Priority Date: 11/27/2015
  • Status: Active Grant
First Claim
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1. A method performed by an intermediate device of a distributed base station system of a wireless communication network, for downlink transmission, the distributed base station system comprising a first base station device and a second base station device, each base station device being connected to the intermediate device, the intermediate device being further connected via a point-to-point connection to a first remote radio device of the distributed base station system, which first remote radio device is connected to at least one antenna for distributing wireless signals to a plurality of User Equipment (UEs), the method comprising:

  • receiving, from the first base station device, first data that is to be sent from the first remote radio device towards the UEs on a first radio channel of an unlicensed frequency band;

    sending, at a first time point, the first data over the point-to-point connection to the first remote radio device for further distribution wirelessly over the first radio channel to the UEs, in response to receiving the first data;

    sending, to the second base station device, a first indication that the first radio channel is free;

    receiving, from the second base station device, second data that is to be sent from the first remote radio device towards the UEs on the first radio channel of the unlicensed frequency band, the second data being received in response to the sending of the first indication;

    sending, at a second time point which is separate from the first time point, the second data over the point-to-point connection to the first remote radio device for further distribution wirelessly over the first radio channel to the UEs, in response to receiving the second data;

    receiving, from the first base station device, third data that is to be sent towards the UEs on a second radio channel of a first licensed frequency band;

    receiving, from the second base station device, fourth data that is to be sent towards the UEs on a third radio channel of a second licensed frequency band;

    sending, in response to receiving the third data, the third data towards the UEs for transmission on the second radio channel of the first licensed frequency band which is different from the first radio channel; and

    sending, in response to receiving the fourth data, the fourth data towards the UEs for transmission on the third radio channel of the second licensed frequency band which is different from the first radio channel and the second radio channel.

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