Method and apparatus for generating a dedicated reference signal

A method for generating a Reference Signal (RS) by a base station in a communication system, the method comprising steps of:

• allocating at least one Physical Resource Block (PRB) for a User equipment (UE);
• and
• mapping an RS sequence corresponding to an antenna port for the UE on the at least one PRB for the UE,
• wherein 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,
• wherein the antenna port includes three Resource Element (RE) groups in a PRB pair,
• wherein one RE group includes two RE pairs, and
• wherein one RE pair includes two consecutive Orthogonal Frequency Division Multiplexing (OFDM) symbols in a time domain and one subcarrier in a frequency domain.

An apparatus of a User Equipment (UE) for generating a Reference Signal (RS) in a communication system, the apparatus comprising:

• with a processor that identifies an allocation of at least one Physical Resource Block (PRB) for the UE, and acquires an RS sequence corresponding to an antenna port for the UE on the at least one PRB for the UE,
• wherein the RS sequence corresponding to the antenna port for the UE is based on an initial sequence derived from an initialization value based on a Cell IDentifier (ID) and an index of the at least one PRB for the UE,
• wherein the antenna port includes three Resource Element (RE) groups in a PRB pair,
• wherein one RE group includes two RE pairs, and
• wherein one RE pair includes two consecutive Orthogonal Frequency Division Multiplexing (OFDM) symbols in a time domain and one subcarrier in a frequency domain.

A method for generating a Reference Signal (RS) by a User Equipment (UE) in a communication system, comprising steps of:

• identifying an allocation of at least one Physical Resource Block (PRB) for the UE;
• and
• acquiring an RS sequence corresponding to an antenna port for the UE on the at least one PRB for the UE,
• wherein the RS sequence corresponding to the antenna port for the UE is based on an initial sequence derived from an initialization value based on a Cell IDentifier (ID) and an index of the at least one PRB for the UE,
• wherein the antenna port includes three Resource Element (RE) groups in a PRB pair,
• wherein one RE group includes two RE pairs, and
• wherein one RE pair includes two consecutive Orthogonal Frequency Division Multiplexing (OFDM) symbols in a time domain and one subcarrier in a frequency domain.