Patent ID: 9060304
Filing Date: 2015-06-16
Classification: H04W

Abstract:
1. A method for sending a sounding reference signal in a mobile communication system, comprising: a user equipment UE sending the sounding reference signal to an e-node-B, eNB in time-frequency resources corresponding to a guard space in a radio frame, wherein the guard space is one or more of a downlink-to-uplink guard space, an uplink-to-downlink guard space, reserved subframes, or reserved idle resources; wherein when the sounding reference signal is sent in the time-frequency resources corresponding to the uplink-to-downlink guard space, the sounding reference signal is sent in one or more of first n OFDM symbols of the time-frequency resources corresponding to the guard space, wherein, a destination sounding reference signal is sent in one of the n OFDM symbols, and the value of n is 1, 2, 3, 4, 5 or 6; when the sounding reference signal is sent in the time-frequency resources corresponding to the uplink to downlink guard space, an original uplink timing advance amount is increased by Offset, wherein the Offset is one or more OFDM symbols of n OFDM symbols and a time length corresponding to one or more cyclic prefixes corresponding to the one or more OFDM symbols; and the value of n is 0, 1, 2, 3, 4, 5 or 6; in a time division duplex system, in the step of the UE sending the sounding reference signal to the eNB in the time-frequency resources corresponding to the guard space in the radio frame, the UE sending the sounding reference signal to the eNB in time-frequency resources corresponding to a guard period or an uplink pilot time slot of a special subframe in the radio frame; in a time division duplex system, in the step of the UE sending the sounding reference signal to the eNB in the time-frequency resources corresponding to the guard space in the radio frame, the UE sending the sounding reference signal to the eNB in time-frequency resources corresponding to an uplink time slot between an uplink pilot time slot and a guard period of a special subframe in the radio frame.