Zte Corporation

Ting Liang

Zhaohua Lu

Dengkui Zhu

Zirong Li

Bo Sun

Ying Liu

Yanfeng Guan

Changyin Sun

A method for sending a middle pilot is disclosed. The sending method comprises: selecting a middle pilot sequence set; creating a middle pilot subcarrier union; mapping by a base station a middle pilot sequence in the middle pilot sequence set after modulation through an OFDMA or OFDM symbol for transmitting the middle pilot onto a middle pilot subcarrier in a middle pilot subcarrier union corresponding to each transmission antenna, or, mapping by a base station a middle pilot sequence in the middle pilot sequence set through an OFDMA or OFDM symbol for transmitting the middle pilot onto a middle pilot subcarrier in a middle pilot subcarrier union corresponding to each transmission antenna and then performing modulation on the data at the subcarrier. By way of the present invention, the sending of middle pilot sequences is achieved, and the method reduces the periodicity of pilot symbols in the frequency domain and improves downlink performance of user data.

Method for sending a middle pilot

A pilot frequency transmitting method comprises: in a downlink frame, a base station transmitting a MIMO midamble on the jsymbol of the idownlink subframe; wherein i is a natural number which is less than or equal to the maximum number of downlink subframes included in the downlink frame, and j is a natural number which is less than or equal to the maximum number of symbols included in the downlink subframe. Accordingly, the present invention also provides a pilot frequency transmitting method and a base station for transmitting a MIMO midamble. The present invention can obtain a better effect for channel measurement by selecting an appropriate transmitting opportunity and/or manner of the MIMO midamble.

Pilot frequency transmitting method and base station

Growing community of inventors

Shenzhen, China

Ting Liang