Abstract
Systems methods and/or techniques for improving downlink spectrum efficiency may be disclosed. For example a higher order modulation (HOM) transmission may be provided to a device. The higher order modulation transmission may be configured to be indicated by the network or a device. Additionally multiple modulation and coding scheme (MCS) tables transport block size (TBS) tables and/or channel quality index (CQI) tables may be provided to support the higher order modulation transmission.
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Technologies
Resource configuration Signal Processing
Product
User Equipment (UE/Terminal)
Use Cases
Wireless communication
Services
Channel Quality Measurement/Estimation
Claim
1. A method for providing higher order modulation (HOM), the method comprising: providing, at a device, a first channel quality indicator (CQI) table comprising an element table of CQI values for QPSK, 16QAM, and 64QAM and a second CQI table comprising an element table of CQI values for at least 256QAM;', 'sending, from the device to a network, a channel state information (CSI) report comprising an indication of whether the first CQI table or second CQI table should be used for feedback reporting for HOM transmissions.
2. The method of claim 1, wherein the indication is explicit, and wherein the explicit indication comprises at least one of the following: a bit, a feedback report type, or a first CQI report and used for subsequent CQI reports.
3. The method of claim 1 , receiving, from the network, a feedback report comprising a configuration of the first CQI table or the second CQI table for use for the feedback reporting.
4. The method of claim 3, wherein the configuration is provided in the feedback report using at least one of the following: higher layer signaling, a transmission mode, or information in a downlink assignment.
5. The method of claim 1, wherein the indication is implicit from the CSI feedback report, and wherein the implicit indication comprises at least one of the following: a subframe in which CQI included in the CSI feedback report is reported, a type of feedback in the CSI feedback report, or a carrier for the CSI feedback report.
6. The method of claim 1, wherein the element table of the first CQI table comprises a 16-element table.
7. The method of claim 1, wherein the element table of the second CQI table comprises a 16-element table.
8. The method of claim 1, wherein the indication is sent when the device is configured for reception of a physical data shared channel (PDSCH) that spans modulation orders of multiple CQI tables including the first CQI table and the second CQI table.
9. The method of claim 1, further comprising:', 'receiving, from the network, downlink assignment comprising an indication of a modulation coding scheme table to be used; and', 'determining , at the device, , which of the first CQI table or the second CQI table to use based on a modulation and coding scheme (MCS) table identified by the indication in the downlink assignment
10. A wireless transmit receive unit (WTRU) for providing higher order modulation (HOM), the WTRU comprising a processor configured to:', 'provide a first channel quality indicator (CQI) table comprising an element table of CQI values for QPSK, 16QAM, and 64QAM and a second CQI table comprising an element table of CQI values for at least 256QAM;', 'send, from the WTRU, a channel state information (CSI) report comprising an indication of whether the first CQI table or second CQI table should be used for feedback reporting for HOM transmissions
11. The WTRU of claim 10, wherein the indication is explicit from the downlink assignment, and wherein the explicit indication comprises at least one of the following: a bit, a feedback report type, or a first CQI report and used for subsequent CQI reports
12. The WTRU of claim 10, wherein the indication is implicit from the CSI feedback report, and wherein the implicit indication comprises at least one of the following: a subframe in which CQI included in the CSI feedback report is reported, a type of feedback in the CSI feedback report, or a carrier for the CSI feedback report
13. A method for providing higher order modulation (HOM), the method comprising: providing, at a network, a first modulation coding scheme (MCS) table comprising an element table of MCSs for QPSK, 16QAM, and 64QAM and a second MCS table comprising an element table of a MCS for at least 256QAM;
sending, from the network to a device, a downlink assignment comprising an indication of whether the first MCS table or second MCS table should be used by the device for HOM transmissions
14. The method of claim 13, wherein the indication is explicit from the downlink assignment, and wherein the explicit indication comprises at least one of the following: a bit, higher layer signaling, a transmission mode, or a scrambling code
15. The method of claim 13, wherein the indication is implicit from the downlink assignment, and wherein the implicit indication comprises at least one of the following: a type of the downlink assignment, a channel used for the downlink assignment, a parameter used to transmit the downlink assignment, a search space, a subframe in which the downlink assignment is sent, or a carrier indication in the downlink assignment
16. The method of claim 13, wherein the element table of the first MCS table comprises a 32-element table
17. The method of claim 13, wherein the element table of the second MCS table comprises a 32-element table
18. The method of claim 13, wherein the second MSC table is provided for QPSK, 16QAM, and 64QAM along with 256QAM
19. The method of claim 13, wherein the indication is sent when the device is configured for reception of a physical data shared channel (PDSCH) that spans modulation orders of both the first MCS table and the second MCS table.']
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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.
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