Data compression method and apparatus, and storage medium

A method for compressing a data block, performed by a data receiving terminal which is configured to receive multiple compressed services carried on a radio bearer, wherein each service corresponds to a decompression buffer, the method comprises:

• receiving a protocol data unit (PDU) carrying a compression identifier transmitted by a data transmitting terminal, wherein the compression identifier is used for indicating a first compression buffer corresponding to a service to which a received first data block belongs, and the PDU comprises a second data block, the second data block is a compressed first data block by the data transmitting terminal using a dictionary corresponding to the first compression buffer;
• determining a first decompression buffer corresponding to the first compression buffer according to the compression identifier;
• and
• decompressing the second data block using a dictionary corresponding to the first decompression buffer to obtain the first data block.

An apparatus for compressing:

• a data block, configured to carry multiple services on a radio bearer, wherein each service corresponds to a compression buffer, the apparatus comprises a memory, a transceiver, and a processor,
• wherein the memory is used for storing computer programs, the transceiver is used for receiving and transmitting a data block under a control of the processor, and the processor is used for reading the computer programs in the memory and performing the following operations:
• determining a first compression buffer corresponding to a service to which a first data block to be transmitted belongs;
• compressing the first data block using a dictionary corresponding to the first compression buffer to obtain a compressed second data block;
• packaging the second data block into a protocol data unit (PDU) and adding a compression identifier for indicating the first compression buffer in a PDU header;
• and
• transmitting the PDU carrying the compression identifier to a data receiving terminal.