Patent ID: 11924121
Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A data transmission method that is applicable to a base station, the method comprising:
determining an adjustment symbol based on first information carried in a last sub-frame before performing a frequency adjustment or an uplink/downlink switching and second information carried in a first sub-frame after performing the frequency adjustment or the uplink/downlink switching;
mapping data symbols to a data transmission symbol and the adjustment symbol of a target sub-frame containing the adjustment symbol in response to performing resource mapping on a physical downlink channel, wherein:
the target sub-frame is the last sub-frame before performing the frequency adjustment or the uplink/downlink switching and/or the first sub-frame after performing the frequency adjustment or the uplink/downlink switching,
the data transmission symbol is an orthogonal frequency division multiplexing (OFDM) symbol for transmitting data, and
the adjustment symbol is an OFDM symbol used for an adjustment time of a narrowband frequency adjustment or an adjustment time of the uplink/downlink switching; and

transmitting the data symbol in the adjustment symbol or disabling transmission of the data symbol in the adjustment symbol in response to performing data transmission in the target sub-frame.