METHOD, APPARATUS AND SYSTEM FOR TRANSMITTING AND RECEIVING SERVICE DATA

摘要

Disclosed in an embodiment of the present invention are a method, apparatus and system for transmitting and receiving service data; the method comprises: a transmitting end first obtaining a target modulation mode different from the current modulation mode; then the transmitting end generating invalid data while caching the service data, then encapsulating and mapping the invalid data, switching the current modulation mode to the target modulation mode, modulating the encapsulated and mapped invalid data according to the target modulation mode, and transmitting the modulated invalid data to a receiving end. After completing encapsulation and mapping of the invalid data, the transmitting end obtains the cached service data, encapsulates and maps same, modulates the encapsulated and mapped service data according to the target modulation mode, and transmits the modulated service data to the receiving end. The present invention is applicable to the field of network systems.