Method and apparatus for sequence hopping in single carrier frequency division multiple access (sc-fdma) communication systems

A user equipment (UE) for transmitting a signal including a reference signal in a wireless communication system, the UE comprising:

• a transceiver;
• and
• a controller coupled with the transceiver and configured to:
• receive, from a base station, information indicating whether group hopping or sequence hopping for the reference signal is applied or not,
• transmit, to the base station, the signal using a first sequence based on a plurality of sequence groups if the group hopping is applied, and
• transmit, to the base station, the signal using a second sequence to which the sequence hopping is applied if the sequence hopping is applied and a number of resource blocks allocated for the second sequence is greater than or equal to a predetermined value.

A method for receiving a signal including a reference signal by a base station in a wireless communication system, the method comprising:

• transmitting information indicating whether group hopping or sequence hopping for the reference signal is applied or not;
• receiving, from a user equipment (UE) receiving the information, the signal using a first sequence based on a plurality of sequence groups if the group hopping is applied;
• and
• receiving, from the UE, the signal using a second sequence to which the sequence hopping is applied if the sequence hopping is applied and a number of resource blocks allocated for the second sequence is greater than or equal to a predetermined value.

A base station for transmitting a signal including a reference signal in a communication system, the base station comprising:

• a transceiver;
• and
• a controller coupled with the transceiver and configured to:
• transmit information indicating whether group hopping or sequence hopping for the reference signal is applied or not,
• receive, from a user equipment (UE) receiving the information, the signal using a first sequence based on a plurality of sequence groups if the group hopping is applied, and
• receive, from the UE, the signal using a second sequence to which the sequence hopping is applied if the sequence hopping is applied and a number of resource blocks allocated for the second sequence is greater than or equal to a predetermined value.