Uplink multi-user multi-input multi-output establishment method and apparatus

An uplink multi-user multi-input multi-output communication establishment method, comprising:

• receiving, by a terminal, an uplink data sending announcement broadcast by a network side device;
• sending buffer information to the network side device when determining that data needs to be sent in response to receiving the broadcast uplink data sending announcement, wherein the buffer information comprises sending level and a data sending length of to-be-sent data, wherein the buffer information is sent by the terminal in response to receiving the broadcast uplink data sending announcement;
• and
• when receiving scheduling information sent by the network side device,
• sending the to-be-sent data to the network side device according to the scheduling information, wherein the scheduling information is determined by the network side device according to the buffer information.

A network side device, comprising:

• a transmitter configured to broadcast an uplink data sending announcement;
• a receiver configured to receive buffer information sent by a first terminal that needs to send data, wherein the buffer information comprises a sending level and a data sending length of to-be-sent data, wherein the receiver is configured to receive the buffer information that is sent by a plurality of terminals including the first terminal and a second terminal in response to receiving the broadcast uplink data sending announcement;
• a processor configured to determine, according to the buffer information, scheduling information for establishing an uplink multi-user multi-input multi-output communication;
• and select the second terminal that is allowed to send data, wherein the second terminal is selected from the plurality of terminals based on the buffer information;
• wherein the transmitter is further configured to send the scheduling information to the second terminal.

A terminal, comprising:

• a receiver configured to receive an uplink data sending announcement broadcast by a network side device;
• a transmitter configured to send buffer information to the network side device when determining that data needs to be sent in response to receiving the broadcast uplink data sending announcement, wherein the buffer information comprises a sending level a data sending length of to-be-sent data, wherein the buffer information is sent by a plurality of terminals in response to receiving the broadcast uplink data sending announcement;
• and
• wherein the transmitter is further configured to:
• when receiving scheduling information that is sent by the network side device, send the to-be-sent data to the network side device according to the scheduling information, wherein the scheduling information is determined by the network side device according to the buffer information.