Multi-Carrier Operation For Wireless Systems

A method of a subscriber station (SS) comprising:

• performing network entry in a multi-carrier wireless environment using a primary carrier;
• receiving timing information corresponding to the primary carrier;
• receiving a first control signaling via the primary carrier, the first control signaling assigning at least one secondary carrier;
• transmitting uplink data via the secondary carrier using an uplink transmission timing of the secondary carrier, the uplink transmission timing of the secondary carrier being assigned the same as an uplink transmission timing of the primary carrier;
• and
• determining an adjustment of the uplink transmission timing or frequency of the secondary carrier.

An apparatus comprising:

• a transceiver;
• and
• a processor configured to:
• perform network entry of a subscriber station (SS) in a multi-carrier wireless environment using a primary carrier;
• receive timing information corresponding to the primary carrier;
• receive a first control signaling via the primary carrier, the first control signaling assigning at least one secondary carrier;
• transmit uplink data via the secondary carrier using an uplink transmission timing of the secondary carrier, the uplink transmission timing of the secondary carrier being assigned the same as an uplink transmission timing of the primary carrier;
• and
• determining an adjustment of the uplink transmission timing or frequency of the secondary carrier.

A method of a subscriber station (SS) comprising:

• performing network entry in a multi-carrier wireless environment using a primary carrier;
• receiving timing information corresponding to the primary carrier;
• receiving a first control signaling via the primary carrier, the first control signaling assigning at least one secondary carrier;
• initially assigning an uplink transmission timing of the secondary carrier based on an uplink transmission timing of the primary carrier;
• and
• determining an adjustment of the uplink transmission timing or frequency of the secondary carrier.