Method for controlling transmission, network device, and terminal

A method for controlling transmission, the method comprising:

• receiving, by a terminal, first control information delivered by a first radio access network device, wherein the first control information comprises link information of at least two wireless communications systems;
• and
• switching, by the terminal according to the link information of the at least two wireless communications systems, a service, which is transmitted in a first single-mode wireless communications system, to a multimode wireless communications system comprising the at least two wireless communications systems.

A radio access network device, comprising:

• a processor, configured to determine, according to a service transmission condition of a terminal in a first single-mode wireless communications system, that a multimode wireless communications system comprising at least two wireless communications systems transmits a service for the terminal;
• and
• a sender, configured to send first control information to the terminal, wherein the first control information comprises link information of the at least two wireless communications systems, so that the terminal switches a service, which is transmitted in the first single-mode wireless communications system, to the multimode wireless communications system according to the link information of the at least two wireless communications systems.

A terminal, comprising:

• a receiver, configured to receive first control information delivered by a first radio access network device, wherein the first control information comprises link information of at least two wireless communications systems;
• and
• a processor, configured to switch, according to the link information of the at least two wireless communications systems, a service, which is transmitted in a first single-mode wireless communications system, to a multimode wireless communications system comprising the at least two wireless communications systems.