Method and system for realizing service transfer between RNCs in different manufacturers

The invention relates to a method and a system for realizing service transfer between RNCs in different manufacturers, and the method comprises the following steps: service is divided into a R99 real-time service, a R99 non-real-time service, a HSPA service, a R99 real-time and non-real-time concurrent service and a HSPA and R99 real-time concurrent service; for the R99 real-time service, SRNC uses a Iur interface switch to transfer the R99 real-time service to DRNC from SRNC; for the R99 non-real-time service and the R99 real-time and non-real-time concurrent service, SRNC carries out Iur interface switches and repositions in sequence so as to transfer the R99 non-real-time service or the R99 real-time and non-real-time concurrent service to DRNC from SRNC; for the HSPA service and the HSPA and R99 real-time concurrent service, SRNC leads the HSPA service to fall back to R99 and carries out the Iur interfere switch, then repositioning is carried out so as to transfer the HSPA service or the HSPA and R99 real-time concurrent service to DRNC from SRNC. The invention avoids the problems of HSPA service transfer between RNCs in different manufacturers and causes a terminal user to use the HSPA service at most under the condition of fully considering the continuity and the transfer performance of the real-time service.