There exists serious situation that the data traffic from GSM / TD-SCDMA dual-mode terminal "flow back" GSM network
which causes increased pressure to the GSM network load and low usage of TD-SCDMA network.The paper put forward a network 2G/3G adjustment parameter
and a solution of reselection cell form 2G to 3G controlled by networks as well as a new kind of dual-mode mobiles to realize TD-SCDMA network streaming GSM networks data services
as well as balance 2G/3G dual-network coordination.