Data transmission method, base station, and user equipment

A method for transmitting data, the method comprising:

• detecting, by a UE, Downlink Control Signaling (DCI) sent by an eNB to schedule the UE to receive or send data in a sub-frame p in a predetermined frequency band;
• if the DCI is detected, then determining, by the UE, from the DCI the number B of last idle symbols in the sub-frame p, wherein B is zero or a positive integer;
• and
• receiving or sending, by the UE, the data in the sub-frame p in the predetermined frequency band according to the number B of idle symbols.

An eNB, comprising:

• a processor;
• and
• a memory storing at least one instruction configured, upon being executed by the processor to cause the eNB:
• to detect a predetermined frequency band for being idle for a first length of time in a predetermined period of time in a sub-frame p in the predetermined frequency band;
• and
• if the idle for the first length of time is detected, to schedule data in N consecutive sub-frames starting from a sub-frame next to the sub-frame p and to perform data transmission for the data, and to set last A symbols in the last one of the consecutive N sub-frames to be idle;
• wherein the total length of time corresponding to the A symbols is no less than the first length of time, and both N and A are positive integers.

A UE, comprising:

• a processor;
• and
• a memory storing at least one instruction configured, upon being executed by the processor to cause the UE:
• to detect Downlink Control Signaling (DCI) sent by an eNB to schedule the UE to receive or send data in a sub-frame p in a predetermined frequency band;
• and,
• if the DCI is detected, to determine from the DCI the number B of last idle symbols in the sub-frame p, wherein B is zero or a positive integer;
• and
• to receive or send the data in the sub-frame p in the predetermined frequency band according to the number B of idle symbols.