Method and apparatus for transmitting uplink reference signal in wireless communication system

摘要

Provided are a method and an apparatus for transmitting an uplink (UL) reference signal (RS) in a wireless communication system. A first user equipment (UE) served through a macro eNodeB (eNB) generates a first UL RS on the basis of a first indicator and transmits the generated first UL RS. A second UE served through a pico eNB having the same cell identifier (ID) as the macro eNB generates a second UL RS on the basis of a second indicator and transmits the generated second UL RS. The bandwidth to which the first UL RS is transmitted is overlapped with the bandwidth to which the second UL RS is transmitted.

主权项

1. A method for transmitting, by a user equipment (UE), a reference signal in a wireless communication system, the method comprising:
configuring a virtual cell identity (ID) which is different from a physical cell ID; generating a first pseudo-random sequence which is initialized by using the virtual cell ID; obtaining a group hopping pattern by using the first pseudo-random sequence; obtaining a sequence shift pattern by using the virtual cell ID; obtaining a sequence group number of a base sequence by using the group hopping pattern and the sequence shift pattern; generating the base sequence by using the sequence group number; and transmitting a reference signal, which is generated by using the base sequence, to an eNodeB (eNB).