Method, device, and system for transmitting signals in unlicensed band
AssigneeWilus Institute of Standards and Technology Inc.
InventorsMinseok Noh, Jinsam Kwak, Juhyung Son
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Abstract
A method, a device, and a system for transmitting a downlink signal is provided. The method includes monitoring a first common control channel indicating a downlink (DL) interval of subframe (SF) #(n−1) and SF #n, monitoring a second common control channel indicating a DL interval of SF #n and SF #(n+1), and performing a DL reception process in the SF #n based on a detection result of the first common control channel and a detection result of second common control channel. The DL interval represents occupied OFDM symbols in a DL subframe.
Claims18
A method for a user equipment to receive a downlink signal in a cellular communication system, the method comprising:
- monitoring a first common control channel indicating a downlink (DL) interval of subframe (SF) #(n−1) and SF #n;
- monitoring a second common control channel indicating a DL interval of SF #n and SF #(n+1);
- and
- performing a DL reception process in the SF #n based on a detection result of the first common control channel and a detection result of the second common control channel,
- wherein only a detection process for a first physical channel/signal is allowed in the DL reception process in SF #n when a detection of the first common control channel fails, a detection of the second common control channel is successful, and the DL interval of SF #n indicated by the second common control channel is a part of a total orthogonal frequency division multiplexing (OFDM) symbols of SF #n,
- wherein the first physical channel/signal comprises a Discovery Reference Signal (DRS),
- wherein the DL interval represents occupied OFDM symbols in a DL subframe.
A user equipment used in a cellular wireless communication system, the user equipment comprising:
- a wireless communication module;
- and
- a processor,
- wherein the processor is configured to monitor a first common control channel indicating a downlink (DL) interval of subframe (SF) #(n−1) and SF #n;
- monitor a second common control channel indicating a DL interval of SF #n and SF #(n+1);
- and
- perform a DL reception process in the SF #n based on the detection a result of the first common control channel and a result of the detection of result of second common control channel,
- wherein only a detection process for a first physical channel/signal is allowed in the DL reception process in SF #n, when the detection of the first common control channel fails, the detection of the second common control channel is successful, and the DL interval of SF #n indicated by the second common control channel is a part of a total orthogonal frequency division multiplexing (OFDM) symbols of SF #n,
- wherein the first physical channel/signal comprises a Discovery Reference Signal (DRS),
- wherein the DL interval represents occupied OFDM symbols in a DL subframe.
Dependencies are inferred from the claim text.