Bandwidth configuration method, transmission method, communication node, and storage medium

A transmission method, comprising:

• determining a second initial uplink bandwidth part, wherein a bandwidth of the second initial uplink bandwidth part is smaller than a bandwidth of a first initial uplink bandwidth part, the first initial uplink bandwidth part has a random access channel resource, the random access channel resource comprises at least one random access channel occasion, and the at least one random access channel occasion is used for transmitting a random access preamble;
• and
• transmitting the random access preamble through a frequency domain resource in the second initial uplink bandwidth part;
• wherein a physical resource block of the random access channel resource corresponds to a first subcarrier spacing, and a physical resource block of the second initial uplink bandwidth part corresponds to a second subcarrier spacing, wherein in a case where the first subcarrier spacing is different from the second subcarrier spacing, a starting physical resource block of the second initial uplink bandwidth part is a physical resource block comprising a starting physical resource block of the random access channel resource and having the second subcarrier spacing.

A communication node, comprising:

• a memory, a processor, and a computer program stored on the memory and executable by the processor, wherein the processor executes the computer program to perform steps, wherein the step comprises:
• determining a first initial uplink bandwidth part, wherein the first initial uplink bandwidth part has a random access channel resource, the random access channel resource comprises at least one random access channeloccasion, and the at least one random access channel occasion is used for transmitting a random access preamble;
• and
• configuring a second initial uplink bandwidth part for a first type of user equipment (UE), wherein a bandwidth of the second initial uplink bandwidth part is smaller than a bandwidth of the first initial uplink bandwidth part;
• wherein the second initial uplink bandwidth part comprises the random access channel resource;
• wherein a starting physical resource block of the second initial uplink bandwidth part is the same as a starting physical resource block of the random access channel resource;
• and
• wherein a physical resource block of the random access channel resource corresponds to a first subcarrier spacing, and a physical resource block of the second initial uplink bandwidth part corresponds to a second subcarrier spacing, wherein in a case where the first subcarrier spacing is different from the second subcarrier spacing, a starting physical resource block of the second initial uplink bandwidth part is a physical resource block comprising a starting physical resource block of the random access channel resource and having the second subcarrier spacing.