Abstract
A method and apparatus for time-based fast positive acknowledgement (ACK)/negative acknowledgement (NACK) reporting (FANR) operation with enhanced general packet radio service 2 uplink (HUGE) are disclosed. A wireless transmit/receive unit (WTRU) configures downlink FANR operation and EGPRS-2 mode uplink transmission not to be in conflict. A modulation and coding scheme (MCS) for the EGPRS-2 mode may be limited to an MCS containing at most two RLC data blocks. Alternatively, three or more piggybacked ACK/NACK (PAN) bits may be used for a time-based FANR operation if an EGPRS-2 mode is configured. Alternatively, at least one PAN bit may indicate an ACK/NACK for a group of RLC data blocks. The number of PAN bits for a time-based FANR operation may be configured by the network. The downlink FANR operation may be dynamically switched between time-based and SSN-based.
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Claim
1. A method for performing, by a wireless transmit/receive unit (WTRU), time-based fast positive acknowledgement (ACK)/negative acknowledgement (NACK) response (FANR) operation, the method comprising:
transmitting a radio block including a plurality of radio link control (RLC) data blocks; and
receiving a radio block including a piggybacked ACK/NACK (PAN) field, wherein the PAN field comprises a variable number of bits, wherein both a quantity and a value of the variable number of bits is based on both a quantity of the plurality of RLC data blocks and a decoding status of the plurality of RLC data blocks, wherein the decoding status indicates header decoding failings and missed or erroneously decoded RLC data blocks of the plurality of RLC data blocks.
2. The method of claim 1 wherein the WTRU receives a first PAN field including a first number of bits in a first transmission time interval (TTI) and a second PAN field including a second number of bits in a second TTI.
3. The method of claim 2 wherein the first number of bits is different than the second number of bits.
4. The method of claim 1 wherein the PAN field indicates an ACK or a NACK for two RLC data block groups.
5. The method of claim 4 wherein each RLC data block group comprises up to two RLC data blocks.
6. A wireless transmit/receive unit (WTRU) for time-based fast positive acknowledgement (ACK)/negative acknowledgement (NACK) response (FANR) operation, the WTRU comprising:
a transceiver configured to transmit a radio block including a plurality of radio link control (RLC) data blocks and receive a radio block including a piggybacked ACK/NACK (PAN) field, wherein the PAN field comprises a variable number of bits, where both a quantity and a value of the variable number of bits is based on both a quantity of the plurality of RLC data blocks and a decoding status of the plurality of RLC data blocks, wherein the decoding status indicates header decoding failings and missed or erroneously decoded RLC data blocks of the plurality of RLC data blocks; and
a controller adapted to process the PAN field for the decoding status of the plurality of RLC data blocks.
7. The WTRU of claim 6 wherein the controller receives a first PAN field including a first number of bits in a first transmission time interval (TTI) and a second PAN field including a second number of bits in a second TTI.
8. The WTRU of claim 7 wherein the first number of bits is different than the second number of bits.
9. The WTRU of claim 6 wherein the PAN field indicates an ACK or a NACK for two RLC data block groups.
10. The WTRU of claim 9 wherein each RLC data block group comprises up to two RLC data blocks.
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Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.