Method for switching first transmission mode into second transmission mode

The invention provides a method for switching a first transmission mode into a second transmission mode. The method comprises that a network side receives a feedback signal form a terminal and judges whether the feedback signal confirms correctly-received characters or not when a terminal side meets a condition for switching the first transmission mode into the second transmission mode, if so, the network side transmits a radio resource control (RRC) reconfiguration message to the terminal side, and if not, the network side does not transmit the RRC reconfiguration message to the terminal side; the terminal switches the first transmission mode into the second transmission mode according to received RRC reconfiguration message. By adding setting of self-adaption judgment conditions among modes in a special scene, the terminal is ensured to meet a switched scene, simultaneously retransmission performed by the first transmission mode can be wholly and correctly translated when the scene has high error rate, and then switching operation is finished, so that switching success rate is improved, and small region capacity is ensured.