METHOD AND SYSTEM FOR ELIMINATING SOUNDING REFERENCE SYMBOL INTERFERENCE BETWEEN USERS IN DIFFERENT CELLS IN MULTI-POINT COORDINATION

摘要

A method for eliminating Sounding Reference Symbol (SRS) interference between users in different cells in multi-point coordination is disclosed by the present invention. The method includes: User Equipment (UE) for implementing Coordinated Multi-Point (CoMP) transmission in the same CoMP transmission cell set is configured with the same virtual cell identifier (ID) and the virtual cell ID is notified to the UE for implementing the CoMP transmission in each cell; the UE for implementing the CoMP transmission generates the SRS based on the virtual cell ID and sends the SRS to the network side. In the technical solution of the present invention, because the SRS sequences of UE in different cells in the same CoMP set are generated according to the same virtual cell ID, these generated SRS sequences have good orthogonality, and when SRS resources in every cell of the CoMP set are configured, there is only a need to configure the SRS sequences of different UE in the CoMP cells occupying the same time-frequency resources, with different cyclic shifts, to eliminate the interference between SRSes, without the need of limiting bearing location.