Method for controlling inter-cell interference due to SRS transmission in wireless communication system and device for same
A method for controlling inter-cell interference due to sounding reference symbol (SRS) transmission of an inter-cell terminal to which a base station belongs by the base station in a wireless communication system can comprise the steps of: receiving, from an adjacent base station, information relating to a physical resource region causing interference in adjacent cells due to SRS transmission of a terminal, identifier information of the terminal and transmission beam identifier information of the terminal; and allocating a different uplink channel or allocating an SRS corresponding to a transmission beam identifier other than the transmission beam identifier of the terminal to the physical resource region of the terminal.
1. A method of controlling, by a Base Station (BS), inter-cell interference caused by a Sounding Reference Signal (SRS) transmission of a User Equipment (UE) in a cell to which the BS belongs in a wireless communication system, the method comprising:
receiving information about a physical resource region in which interference is caused with respect to a neighboring cell by the SRS transmission of the UE, information about an identifier (ID) of the UE, and information about a transmission beam ID of the UE from a neighboring BS; and
allocating an SRS or another uplink channel corresponding to a transmission beam ID other than the transmission beam ID of the UE in the physical resource region to the UE.
2. The method of claim 1 ,
wherein the information about the physical resource region includes at least one of information about a resource length on a frequency domain allocated for localized SRS transmission on a specific symbol or information about a physical resource starting point for the localized SRS transmission.
3. The method of claim 2 ,
wherein a resource length of the localized SRS in the allocated frequency domain corresponds to a common divisor of a resource length of a whole band SRS in the frequency domain.
4. The method of claim 1 , further comprising
transmitting information indicating that an SRS corresponding to the transmission beam ID other than the transmission beam ID of the UE has been allocated to the UE.
5. The method of claim 4 , further comprising
receiving the SRS corresponding to the transmission beam ID other than the transmission beam ID of the UE through the physical resource region from the UE.
6. The method of claim 1 , further comprising
receiving the SRS corresponding to the transmission beam ID other than the transmission beam ID of the UE through the physical resource region from the UE.
7. The method of claim 1 ,
wherein the information about the physical resource region includes information indicating a physical resource location of a localized SRS unit on a specific symbol.
8. A Base Station (BS) for controlling inter-cell interference caused by Sounding Reference Signal (SRS) transmission of a User Equipment (UE) in a cell to which the BS belongs in a wireless communication system, the BS comprising:
a receiver; and
a processor,
wherein the processor controls the receiver to receive information about a physical resource region in which interference is caused with respect to a neighboring cell by the SRS transmission of the UE, information about an identifier (ID) of the UE, and information about a transmission beam ID of the UE from a neighboring BS, and
allocates an SRS or another uplink channel corresponding to a transmission beam ID other than the transmission beam ID of the UE in the physical resource region to the UE.
9. The BS of claim 8 ,
wherein the information about the physical resource region includes at least one of information about a resource length on a frequency domain allocated for localized SRS transmission on a specific symbol or information about a physical resource starting point for the localized SRS transmission.
10. The BS of claim 9 ,
wherein a resource length of the localized SRS in the allocated frequency domain corresponds to a common divisor of a resource length of a whole band SRS in the frequency domain.
11. The BS of claim 8 , further comprising
a transmitter,
wherein the processor controls the transmitter to transmit information indicating that an SRS corresponding to the transmission beam ID other than the transmission beam ID of the UE has been allocated to the UE.
12. The BS of claim 11 ,
wherein the processor controls the receiver to receive the SRS corresponding to the transmission beam ID other than the transmission beam ID of the UE through the physical resource region from the UE.
13. The BS of claim 8 ,
wherein the processor controls the receiver to receive the SRS corresponding to the transmission beam ID other than the transmission beam ID of the UE through the physical resource region from the UE.
14. The BS of claim 8 ,
wherein the information about the physical resource region includes information indicating a physical resource location of a localized SRS unit on a specific symbol.