Method for receiving data in unlicensed band and device using same
AssigneeLG Electronics Inc.
InventorsJoonkui Ahn, Hanbyul Seo, Seungmin Lee, Yunjung Yi, Seonwook Kim
Life of this patent
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Abstract
A method for receiving data in an unlicensed band and a device using the same are provided. The device receives discovery reference signal (DRS) configuration for a DRS period from a primary cell operating in a licensed band, and checks the reception of the DRS in a DRS subframe of a secondary cell operating in the unlicensed band according to the DRS period. When the DRS is received in the DRS subframe, the device determines the reception quality of a downlink data burst on the basis of the received DRS.
Claims9
A method of receiving data in an unlicensed band, the method comprising:
- receiving, by a wireless device, a discovery reference signal (DRS) configuration for a DRS period from a primary cell operating in a licensed band;
- confirming, by the wireless device, whether a DRS is received in a DRS subframe of a secondary cell operating in the unlicensed band according to the DRS period;
- receiving, by the wireless device, a downlink data burst from the secondary cell;
- and
- determining, by the wireless device, a reception quality of the downlink data burst based on the received DRS,
- wherein the reception quality of the downlink data burst relates to a block error rate (BLER) of the downlink data burst,
- wherein when the DRS is received within a specific duration before the downlink data burst is received, the BLER of the downlink data burst is set lower than a predetermined value, and
- wherein when the DRS is not received within the specific duration before the downlink data burst is received, the BLER of the downlink data burst is set higher than the predetermined value.
A device for receiving data in an unlicensed band, the device comprising:
- a transceiver for transmitting and receiving a radio signal;
- and
- a processor operatively coupled to the transceiver and configured to:
- receive a discovery reference signal (DRS) configuration for a DRS period from a primary cell operating in a licensed band;
- confirm whether a DRS is received in a DRS subframe of a secondary cell operating in the unlicensed band according to the DRS period;
- receive a downlink data burst from the secondary cell;
- and
- determine a reception quality of the downlink data burst based on the received DRS,
- wherein the reception quality of the downlink data burst relates to a block error rate (BLER) of the downlink data burst,
- wherein when the DRS is received within a specific duration before the downlink data burst is received, the BLER of the downlink data burst is set lower than a predetermined value, and
- wherein when the DRS is not received within the specific duration before the downlink data burst is received, the BLER of the downlink data burst is set higher than the predetermined value.
Dependencies are inferred from the claim text.