Method for determining slot format and device

A communications apparatus, comprising:

• a processor;
• and
• a non-transitory computer-readable storage medium coupled to the processor and storing programming instructions for execution by the processor, the programming instructions, when executed by the processor, cause the communications apparatus to:
• determine, based on a format of a first slot with a normal cyclic prefix (NCP), a format for 2(μ-μa) consecutive slots with an extended cyclic prefix (ECP) in a bandwidth part (BWP), wherein μa corresponds to a reference subcarrier spacing of the first slot in the BWP, and μ corresponds to a subcarrier spacing of the 2(μ-μa) consecutive slots in the BWP;
• wherein
• ⌊
• DL_du
• Ts_ECP
• ⌋
• +
• ⌊
• UL_du
• Ts_ECP
• ⌋
• <
• M
• ×
• 2
• (
• μ
• -
• μ
• ⁢
• ⁢
• a
• )
• ,
• or
• ⌊
• DL_du
• Ts_ECP
• ⌋
• =
• o
• ,
• or
• ⁢
• ⌊
• UL_du
• Ts_ECP
• ⌋
• =
• o
• ,
• the 2(μ-μa) consecutive slots with the ECP in the BWP comprise
• ⌊
• DL_du
• Ts_ECP
• ⌋
• downlink symbols and
• ⌊
• UL_du
• Ts_ECP
• ⌋
• uplink symbols, wherein
• ⌊
• *
• ⌋
• represents rounding down, M is a quantity of symbols in a second slot of the 2(μ-μa) consecutive slots with the ECP, DL_du is a duration of one or more downlink symbols in the first slot with the NCP, UL_du is a duration of one or more uplink symbols in the first slot with the NCP, and Ts_ECP is a duration of one symbol in the second slot with the ECP;
• and
• communicate with a network device by using the 2(μ−μa) consecutive slots.