Data transmission method and user equipment

A data transmission method, comprising:

• receiving, by a network side device, auxiliary scheduling information sent by user equipment (UE);
• determining, by the network side device, an uplink transmission state of the UE according to the auxiliary scheduling information, wherein the uplink transmission state is a first uplink transmission state in which uplink data can be simultaneously transmitted on an uplink carrier corresponding to all of network side devices, or is a second uplink transmission state in which uplink data can be simultaneously transmitted on an uplink carrier corresponding to a part of network side devices;
• and
• determining, by the network side device according to the determined uplink transmission state, whether network side devices that can trigger the UE to transmit data are all of the network side devices or are the part of the network side devices.

User equipment, comprising:

• a sender, configured to:
• send auxiliary scheduling information to a first part of or all of network side devices, to instruct the first part of or all of the network side devices to determine an uplink transmission state of the user equipment UE according to the auxiliary scheduling information and determine, according to the uplink transmission state of the UE, whether network side devices that can trigger the UE to transmit data are all of the network side devices or are a second part of the network side devices, wherein the uplink transmission state is a first uplink transmission state in which uplink data can be simultaneously transmitted on an uplink carrier corresponding to all of the network side devices, or is a second uplink transmission state in which uplink data can be simultaneously transmitted on an uplink carrier corresponding to the second part of the network side devices, and
• transmit data according to scheduling information sent by the second part of or all of the network side devices;
• and
• a processor, configured to process data before the sender transmits the data.

A network side device, comprising:

• a receiver, configured to receive auxiliary scheduling information sent by user equipment UE;
• and
• a processor, configured to:
• determine an uplink transmission state of the UE according to the auxiliary scheduling information, wherein the uplink transmission state is a first uplink transmission state in which uplink data can be simultaneously transmitted on an uplink carrier corresponding to all of network side devices, or is a second uplink transmission state in which uplink data can be simultaneously transmitted on an uplink carrier corresponding to a second part of network side devices,
• determine, according to the determined uplink transmission state, whether network side devices that can trigger the UE to transmit data are all of the network side devices or are the part of the network side devices.