Data transmission method and related apparatus

A data transmission apparatus, located on a transmit end side, the apparatus comprising:

• a processor;
• and
• a memory coupled to the processor to store instructions, which when executed by the processor, cause the processor to:
• obtain indication information used to indicate that a first compressed packet is lost or fails to be decompressed, wherein the first compressed packet is generated by compressing a first original packet based on a first compression parameter and transmission of the first compressed packet is followed by transmission of a second compressed packet, wherein a second compression parameter used for generating the second compressed packet by compressing a second original packet is generated by updating based on the second original packet the first compression parameter used for generating the first compressed packet;
• and
• send a target original packet or a target compressed packet generated by compressing the target original packet based on a preset compression parameter;
• wherein the target original packet comprises following packets:
• the first original packet corresponding to the first compressed packet, and the second original packet corresponding to the second compressed packet compressed after the first compressed packet, wherein the target compressed packet comprises:
• a third compressed packet generated by compressing the first original packet based on the preset compression parameter;
• and
• a fourth compressed packet generated by compressing the second original packet based on a compression parameter corresponding to the third compressed packet, wherein the compression parameter corresponding to the third compressed packet is generated by updating the preset compression parameter based on the first original packet.

A data transmission apparatus, located on a receive end, the apparatus comprising:

• a processor;
• and
• a memory coupled to the processor to store instructions, which when executed by the processor, cause the processor to:
• receive a target original packet or a target compressed packet sent by a transmit end, wherein the target compressed packet is generated by compressing the target original packet based on a preset compression parameter;
• and
• wherein the target original packet comprises following packets:
• a first original packet corresponding to a first compressed packet, and a second original packet corresponding to a second compressed packet compressed after the first compressed packet, wherein the first compressed packet is generated by compressing the first original packet based on a first compression parameter and transmission of the first compressed packet is followed by transmission of the second compressed packet, wherein a second compression parameter used for generating the second compressed packet by compressing the second original packet is generated by updating based on the second original packet the first compression parameter used for generating the first compressed packet, wherein the target compressed packet comprises:
• a third compressed packet generated by compressing the first original packet based on the preset compression parameter;
• and
• a fourth compressed packet generated by compressing the second original packet based on a compression parameter corresponding to the third compressed packet, wherein the compression parameter corresponding to the third compressed packet is generated by updating the preset compression parameter based on the first original packet.