METHOD AND APPARATUS FOR TRANSMITTING UPLINK SIGNAL IN WIRELESS COMMUNICATION SYSTEM

摘要

The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for transmitting an uplink signal. A method for transmitting an uplink signal at a UE in a wireless communication system includes, when a virtual cell ID for a reference signal for demodulation of a physical uplink channel is provided, generating a sequence of the reference signal on the basis of the virtual cell ID, and transmitting the generated reference signal to an eNB. A cycle shift hopping pattern of the reference signal can be determined on the basis of the virtual cell ID.

主权项

1. A method for transmitting an uplink signal at a user equipment (UE) in a wireless communication system, the method comprising:
when a parameter NIDcsh—DMRS for a reference signal for demodulation of a physical uplink shared channel (PUSCH) is provided, generating a sequence of the reference signal on the basis of NIDcsh—DMRS; and transmitting the generated reference signal to an eNB, wherein, when NIDcsh—DMRS is provided, a pseudo-random sequence generator used to determine cyclic shift hopping of the reference signal is initialized according tocinit=⌊NIDcsh_DMRS30⌋·25+(NIDcsh_DMRSmod30)at the start of each radio frame,
wherein cinit is an initial value of a pseudo-random sequence and mod denotes a modulo operation.