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US 11,310,858 B2Granted
Method and apparatus for managing radio link in unlicensed band
AssigneeLG Electronics Inc.
InventorsJoonkui Ahn, Sukhyon Yoon, Hanjun Park, Changhwan Park, Seonwook Kim
Life of this patent
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Abstract
A method for managing a radio link in an unlicensed band is provided. An apparatus attempts to receive a discovery reference signal (DRS) in a serving cell that is operated in the unlicensed band. The apparatus determines that a radio link to the serving cell has failed if the DRS is not received for a predetermined time.
Claims13
A method for managing a radio link by a wireless device in an unlicensed band, the method comprising:
- receiving information from a base station, wherein the information informs a time duration for receiving a discovery reference signal (DRS), a first number of DRS receptions for determining radio link failure, and a second number of DRS receptions for determining beam recovery;
- attempting to receive the DRS in a serving cell operating in the unlicensed band within the time duration;
- declaring a radio link with the serving cell has failed based on the DRS not being received more than the first number within the time duration;
- and
- performing a beam recovery procedure based on the DRS not being received more than the second number within the time duration.
2 more elements
A device for managing a radio link in an unlicensed band, the device comprising:
- a transceiver configured to transmit and receive a radio signal;
- and
- a processor operatively coupled with the transceiver and configured to:
- receive information from a base station, wherein the information informs a time duration for receiving a discovery reference signal (DRS), a first number of DRS receptions for determining radio link failure, and a second number of DRS receptions for determining beam recovery;
- attempt to receive the DRS in a serving cell operating in the unlicensed band within the time duration;
- declare a radio link with the serving cell has failed based on the DRS not being received more than the first number within the time duration;
- and
- perform a beam recovery procedure based on the DRS not being received more than the second number within the time duration.
5 more elements
Dependencies are inferred from the claim text.