Method and apparatus for transmitting and receiving reference signal using unlicensed band
AssigneeElectronics and Telecommunications Research Institute
InventorsSeung-Kwon Baek, Chanho Yoon, Eunkyung Kim, Jae Sun Cha, Sung Cheol Chang, Young Jo Ko
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Abstract
There are provided a method and apparatus for transmitting a discovery reference signal (DRS) through transmitting the DRS to a user equipment through a channel of an unlicensed band, receiving measurement report for measurement performed based on the DRS from the user equipment, and scheduling the cell of the unlicensed band based on the measurement report and providing a service to the user equipment through the cell of the unlicensed band.
Claims13
A method for measuring channel occupancy of a licensed assisted access (LAA) cell by a base station, the method comprising:
- transmitting configuration information for received signal strength indication (RSSI) measurement for a frequency of the LAA cell to user equipment, wherein the configuration information includes a period of the RSSI measurement and a subframe offset of the RSSI measurement;
- receiving a report of the RSSI measurement from the user equipment;
- and
- selecting a channel of the LAA cell in which hidden nodes may exist based on the report of the RSSI measurement,
- wherein the report includes average RSSI and a measurement result information element including a percentage of samples when a measured value of the RSSI is more than a threshold value.
A method for measuring channel occupancy of a licensed assisted access (LAA) cell by a terminal, the method comprising:
- receiving configuration information for received signal strength indication (RSSI) measurement for a frequency of the LAA cell from a base station, wherein the configuration information includes a period of the RSSI measurement and a subframe offset of the RSSI measurement;
- measuring the RSSI for the frequency;
- and
- transmitting a report of the RSSI measurement to the base station,
- wherein the report includes average RSSI and a measurement result information element including a percentage of samples when a measured value of the RSSI is more than a threshold value and the report of the RSSI measurement is used to select channel by the based station.
Dependencies are inferred from the claim text.