Wireless communication method and apparatus for processing enhanced uplink scheduling grants

A wireless transmit/receive unit (WTRU) for generating a serving grant (SG), the WTRU comprising:

• a transceiver for receiving a scheduling grant;
• a decoder for decoding the scheduling grant;
• and
• an SG processor configured to:
• update an SG with an absolute grant (AG) value carried by the received scheduling grant on a condition that the received scheduling grant is a primary AG,
• determine whether a scheduling mode is a primary AG mode on a condition that the scheduling grant is a relative grant (RG), and
• wait for a next transmission time interval (TTI) on a condition that it is determined that the scheduling mode is not the primary AG mode.

A wireless transmit/receive unit (WTRU) for generating a serving grant (SG), the WTRU comprising:

• a transceiver for receiving a scheduling grant:
• a decoder for decoding the scheduling grant;
• and
• an SG processor configured to:
• update an SG with an absolute grant (AG) value carried by the received scheduling grant on a condition that the received scheduling grant is a primary AG,
• determine whether an AG value of the scheduling grant is set to “inactive”, and
• set the SG to the AG value in the scheduling grant on a condition that the AG value is not set to “inactive.”