TD-LTE systems changes a lot with GSM and 3G systems by employing frequency division multiplexing（OFDM）

multiple input multiple output（MIMO） and other physical layer transmission key technologies.Therefore

its network planning strategies are also changed.First of all

the frame configuration of TD-LTE are differ from TD-SCDMA;secondly

thank for the OFDM technology

the intra-cell interference of TDLTE can be ignored and main interference is mostly caused by the inter-cell.Thirdly

the planning design methods are affected by the adoption of different MIMO technologies

such as diversity

multiplexing and beam-forming.The key technology of TD-LTE on the planning and design method influence and solutions are studied and some solutions are given in this paper.