Method and apparatus of signaling and procedure for sequence hopping pattern change during handover

A method for use by a wireless transmit/receive unit (WTRU), the method comprising:

• receiving, at the WTRU, a handover command from a current cell that instructs the WTRU to handover to a target cell, wherein the handover command includes an identification of the target cell and information representative of a target sequence hopping pattern of the target cell;
• performing a handover, by the WTRU, to the target cell in accordance with the received handover command;
• and
• transmitting, by the WTRU, to the target cell using the information representative of the target sequence hopping pattern,
• wherein the information representative of the target sequence hopping pattern is for a physical uplink shared channel (PUSCH).

A wireless communication device comprising:

• a receiver operatively connected to at least one processer, the receiver and the at least one processor are configured to receive information indicative of a monitored downlink channel of a neighbor cell from a wireless transmit/receive unit (WTRU);
• and
• a transmitter operatively connected to the at least one processer, the transmitter and the at least one processer are configured to transmit, to the WTRU, a handover command that instructs the WTRU to handover to a target cell in response to the received information,
• wherein the handover command includes an identification of the target cell and information representative of a target sequence hopping pattern of the target cell, and
• wherein the information representative of the target sequence hopping pattern is for a physical uplink shared channel (PUSCH).