SYSTEMS AND METHODS FOR UPLINK FEEDBACK FOR HIGH-SPEED DOWNLINK PACKET ACCESS (HSPDA)
First Claim
1. A wireless transmit/receive unit (WTRU) configured at least in part to:
- determine a first time for a first sub-frame from a first cell;
determine a second time for a second sub-frame from a second cell;
determine a timing relationship using the first time and the second time; and
encoding a first uplink feedback message for the first cell and a second uplink feedback message for the second cell into a composite feedback message using the timing relationship.
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Abstract
Systems and method for uplink feedback for multipoint transmission of high-speed downlink packet access (MP-HSDPA) that may improve downlink transmission efficiency and cell coverage. For example, Channel Quality Indicator (CQI) and/or Precoding Control Indicator (PCI) that may be calculated to accommodate the needs of coordinated dynamic network scheduling. Additionally, various frame structures may be generated for the uplink feedback that may carry multiple CQI and HARQ-ACK feedbacks from MP-HSDPA. The frame structures may also address asynchronous downlink transmissions between two cells. Moreover, HS-DPCCH power offset settings for both CQI and HARQ-ACK fields that may be modified and/or created to ensure reliable uplink feedback transmission.
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Citations
20 Claims
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1. A wireless transmit/receive unit (WTRU) configured at least in part to:
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determine a first time for a first sub-frame from a first cell; determine a second time for a second sub-frame from a second cell; determine a timing relationship using the first time and the second time; and encoding a first uplink feedback message for the first cell and a second uplink feedback message for the second cell into a composite feedback message using the timing relationship. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method comprising:
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determining a first time or a first sub-frame from a first cell; determining a second time for a second sub-frame from a second cell; determining a timing relationship using the first time and the second time; and encoding a first uplink feedback message for the first cell and a second uplink feedback message for a second cell into a composite feedback message using the timing relationship. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. A wireless transmit/receive unit (WTRU) comprising:
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a processor; and a memory comprising instructions that when executed by the processor cause the WTRU to; determine a first time for a first sub-frame from a first cell; determine a second time for a second sub-frame from a second cell; determine an allowance parameter for sending uplink feedback; and determine a timing relationship using the first time, the second time, and the allowance parameter. - View Dependent Claims (19, 20)
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Specification