Wireless communication method and apparatus for processing enhanced uplink scheduling grants
First Claim
1. A method for generating a serving grant (SG) at a wireless transmit/receive unit (WTRU), the method comprising:
- receiving a scheduling grant at the WTRU;
the WTRU determining whether the scheduling grant is an absolute grant (AG) or a relative grant (RG);
on a condition that the scheduling grant is an AG, the WTRU determining whether the scheduling grant is a primary AG or a secondary AG; and
the WTRU updating an SG with an AG value carried by the scheduling grant on a condition that the scheduling grant is the primary AG.
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Abstract
A method and apparatus for processing enhanced uplink scheduling grants are disclosed. A wireless transmit/receive unit (WTRU) detects an absolute grant (AG) and a relative grant (RG). Once the WTRU detects an AG or a RG, a new serving grant (SG) is generated and a hybrid automatic repeat request process may be activated or deactivated depending on whether the received AG is a primary AG or a secondary AG, whether a scheduling mode is a primary AG mode or a secondary AG mode, whether an AG value is set to “INACTIVE” and whether a transmission time interval is 2 ms or 10 ms. A Node-B may send a secondary AG to the WTRU before switching from a primary AG mode to a secondary AG mode and may send the secondary AG only if there is no out-of-date secondary AG exists, which may be detected by implementing a time threshold.
39 Citations
45 Claims
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1. A method for generating a serving grant (SG) at a wireless transmit/receive unit (WTRU), the method comprising:
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receiving a scheduling grant at the WTRU; the WTRU determining whether the scheduling grant is an absolute grant (AG) or a relative grant (RG); on a condition that the scheduling grant is an AG, the WTRU determining whether the scheduling grant is a primary AG or a secondary AG; and the WTRU updating an SG with an AG value carried by the scheduling grant on a condition that the scheduling grant is the primary AG. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A wireless transmit/receive unit (WTRU) for generating a serving grant (SG), the WTRU comprising:
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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. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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35. A wireless transmit/receive unit (WTRU) for generating a serving grant (SG), the WTRU comprising:
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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”
, andset the SG to the AG value in the scheduling grant on a condition that the AG value is not set to “
inactive.” - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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Specification