Uplink signal transmission method and system, and base station

A base station, comprising:

• an active antenna unit, comprising a first array antenna corresponding to a first band and a second array antenna corresponding to a second band, and
• a first baseband processing unit corresponding to the second band,
• wherein
• the active antenna unit is configured to:
• receive a first uplink signal sent by a terminal in the first band;
• and
• send the first uplink signal to the first baseband processing unit,
• the first baseband processing unit is configured to demodulate the received first uplink signal, and
• the first band is lower than the second band.

An uplink signal transmission system, comprising:

• a base station;
• and
• a terminal, configured to send a first uplink signal to the base station in a first band, or configured to send a first uplink signal and a second uplink signal to the base station in the first band,
• wherein
• the base station omprises comprises:
• a processor;
• and
• a non-transitory computer-readable storage medium coupled to the processor and having instructions stored thereon that, when executed by the processor, cause the base station to:
• receive, by an active antenna a unit of the base station, the first uplink signal sent by the terminal in the first band;
• and
• send the first uplink signal to a first baseband processing unit of the base station corresponding to a second band for demodulation,
• wherein
• the active antenna unit of the base station comprises a first array antenna corresponding to the first band and a second array antenna corresponding to the second band, and
• the first band is lower than the second band.