Method and apparatus for generating a dedicated reference signal

摘要

Methods and apparatuses are provided for generating a Reference Signal (RS) in a communication system. At least one Physical Resource Block (PRB) is allocated for a User Equipment (UE). An RS sequence corresponding to an antenna port for the UE is mapped on the at least one PRB for the UE. The RS sequence corresponding to the antenna port for the UE is based on an initial sequence derived by an initialization value based on a Cell IDentifier (ID) and an index of the at least one PRB for the UE. The antenna port includes three RE groups in a PRB pair. One RE group includes two RE pairs. One RE pair includes two consecutive Orthogonal Frequency Division Multiplexing (OFDM) symbols in a time domain and one subcarrier in a frequency domain.

主权项

1. An apparatus of a base station for generating a Reference Signal (RS) in a communication system, the apparatus comprising:
a transceiver configured to transmit and receive signals associated with at least one antenna port; a processor configured to allocate at least one Physical Resource Block (PRB) for a User Equipment (UE); and a mapper configured to map an RS sequence corresponding to an index of an antenna port for the UE on the at least one PRB for the UE, wherein the RS sequence for the UE is obtained based on: (i) an initial sequence derived from an initialization value based on a Cell Identifier (ID), (ii) an index of the at least one PRB for the UE, and (iii) an orthogonal code corresponding to the index of the antenna port, wherein the antenna port includes three Resource Element (RE) groups in a PRB pair, wherein each RE group includes two RE pairs, and wherein each RE pair includes two consecutive Orthogonal Frequency Division Multiplexing (OFDM) symbols in a time domain and one subcarrier in a frequency domain.