The invention discloses a packet reissuing method and
system for group communication, and the method comprises the steps: sending a message which is used for suggesting the establishment of a unicastbearer to a
server when
user equipment detects the loss of a data packet of the group communication, the
unicast bearer being used for reissuing the lost data packet, and the message carrying corresponding data
packet loss information; enabling the
server to establish a
unicast bearer for the
user equipment according to the message; and enbaling the
server to utilize the
unicast bearer to retransmit a lost data packet indicated by the data
packet loss information to the
user equipment. By adopting the method and the device, the
packet loss problem of group communication can be effectively solved, and the
data integrity of the group communication is ensured.