Samsung Electronics Co., Ltd.

Beijing Samsung Telecom R&d Center

Chuan Zhong

Lei Zhou

An apparatus and a method for mapping data and de-mapping data are provided. In the method, each modulated datum is mapped into two centrosymmetric Orthogonal Frequency Division Multiplexing (OFDM) subcarriers at the transmitting end, a certain functional transformation is performed on data in one of the two OFDM subcarriers, and original data may be restored at the receiving end according to data of the two centrosymmetric OFDM subcarriers. Exemplary embodiments of the invention also provide a transmitting device and a receiving device. By adopting embodiments of the invention, self-cancellation of interference among subcarriers may be implemented effectively, and the interference among subcarriers may be reduced.

Methods for mapping and de-mapping data, transmitting device and receiving device

A method by a Mobile Terminal (MT) for positioning the MT is provided. The method includes requesting a Base Station (BS) to allocate a first transmission time for transmitting a first sounding signal for the MT, receiving the first transmission time from the BS, transmitting the first sounding signal to the BS at the first transmission time, requesting the BS to allocate a second transmission time of a second sounding signal for the MT after the MT moves, receiving the second transmission time from the BS, transmitting the second sounding signal to the BS at the second transmission time, reporting a moving distance moved during the period between the first transmission time and the second transmission time, and receiving a position of the MT determined based on the first sounding signal, the second sounding signal, and the moving distance.

Growing community of inventors

Beijing, China

Chuan Zhong