Information transmission method, device, and system using DCI configuration

An information transmission method, comprising:

• obtaining, by a network device, a start location of a first subframe;
• configuring, by the network device, a first field in downlink control information (DCI) of a second subframe, wherein the first field is used to indicate the start location of the first subframe;
• and
• sending, by the network device to a user equipment, the first subframe and the second subframe, wherein the first subframe and the second subframe are adjacent to each other, wherein the second subframe is sent after the first subframe, the first subframe comprises M orthogonal frequency division multiplexing (OFDM) symbols, the second subframe comprises N OFDM symbols, M and N are positive integers, and M≤N, wherein
• the start location of the first subframe is a location or a range of a location of a first OFDM symbol of the first subframe sent by the network device to the user equipment, wherein the first field is a newly added field or an original field in the DCI.

An information transmission method, comprising:

• receiving, by a user equipment, a first subframe and a second subframe that are adjacent to each other and that are sent by a network device, wherein the second subframe is received after the first subframe, the first subframe comprises M orthogonal frequency division multiplexing (OFDM) symbols, the second subframe comprises N OFDM symbols, M and N are positive integers, and M≤N;
• obtaining, by the user equipment, a start location of the first subframe from a first field in downlink control information (DCI) of the second subframe;
• and
• processing, by the user equipment, starting from the start location of the first subframe, the first subframe, wherein
• the start location of the first subframe is a location or a range of a location of the first OFDM symbol of the first subframe sent by the network device to the user equipment, wherein
• the first field is a newly added field or an original field in the DCI.

A user equipment, comprising a processor, a memory, a bus, and a receiver, wherein the processor, the memory, and the receiver are mutually connected by the bus;

• the receiver is configured to receive a first subframe and a second subframe that are adjacent to each other and that are sent by a network device, wherein the second subframe is received after the first subframe, the first subframe comprises M orthogonal frequency division multiplexing (OFDM) symbols, the second subframe comprises N OFDM symbols, M and N are positive integers, and M≤N;
• and
• the processor is configured to obtain a start location of the first subframe from a first field in downlink control information (DCI) of the second subframe, wherein the first field is a newly added field or an original field in the DCI, and to process, starting from the start location of the first subframe, the first subframe, wherein
• the start location of the first subframe is a location or a range of a location of the first OFDM symbol of the first subframe sent by the network device to the user equipment.

A wireless network system, comprising a network device and a user equipment, wherein

• the network device comprises a processor, a memory, a bus, and a transmitter, wherein the processor, the memory, and the transmitter are mutually connected by the bus;
• the processor is configured to obtain a start location of a first subframe, and configure a first field in downlink control information (DCI) of a second subframe, wherein the first field is a newly added field or an original field in the DCI, wherein the first field is used to indicate the start location of the first subframe;
• and
• the transmitter is configured to send, to the user equipment, the first subframe and the second subframe, wherein the first subframe and the second subframe are adjacent to each other, wherein the second subframe is sent after the first subframe, the first subframe comprises M orthogonal frequency division multiplexing (OFDM) symbols, the second subframe comprises N OFDM symbols, M and N are positive integers, and M≤N, wherein
• the user equipment comprises a processor, a memory, a bus, and a receiver, wherein the processor, the memory, and the receiver of the user equipment are mutually connected by the bus of the user equipment;
• the receiver of the user equipment is configured to receive the first subframe and the second subframe that are adjacent to each other and that are sent by the network device, wherein the second subframe is received after the first subframe, the first subframe comprises M OFDM symbols, the second subframe comprises N OFDM symbols, M and N are positive integers, and M≤N;
• and
• the processor of the user equipment is configured to obtain a start location of the first subframe from a first field in the DCI of the second subframe, and process, starting from the start location of the first subframe, the first subframe, wherein
• the start location of the first subframe is a location or a range of a location of the first OFDM symbol of the first subframe sent by the network device to the user equipment.