System and method for adaptive modulation
AssigneeInterDigital Patent Holdings, Inc.
InventorsPaul Marinier, J. Patrick Tooher, Ghyslain Pelletier, Marian Rudolf
Life of this patent
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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.
Claims20
A wireless transmit/receive unit (WTRU), comprising:
- a processor configured to:
- receive a physical downlink control channel (PDCCH) transmission comprising scheduling information for a downlink shared channel transmission;
- determine a modulation and coding scheme (MCS) for the downlink shared channel transmission based on a first set of MCS values or a second set of MCS values, wherein the first set of MCS values comprises at least one MCS value corresponding to a modulation order of QPSK (Quadrature Phase Shift Keying), 16QAM (Quadrature Amplitude Modulation), or 64QAM, wherein the second set of MCS values comprises at least one MCS value corresponding to a modulation order of 256QAM, and wherein whether the first or second set of MCS values is used to determine the MCS is based on at least one of a scrambling identity associated with the PDCCH transmission, a format of the PDCCH transmission, or a search space associated with the PDCCH transmission;
- and
- decode the downlink shared channel transmission based on the determined MCS.
A method implemented by a wireless transmit/receive unit (WTRU), the method comprising:
- receiving a physical downlink control channel (PDCCH) transmission comprising scheduling information for a downlink shared channel transmission;
- determining a modulation and coding scheme (MCS) for the downlink shared channel transmission based on a first set of MCS values or a second set of MCS values, wherein the first set of MCS values comprises at least one MCS value corresponding to a modulation order of QPSK (Quadrature Phase Shift Keying), 16QAM (Quadrature Amplitude Modulation), or 64QAM, wherein the second set of MCS values comprises at least one MCS value corresponding to a modulation order of 256QAM, and wherein whether the first or second set of MCS values is used to determine the MCS is based on at least one of a scrambling identity associated with the PDCCH transmission, a format of the PDCCH transmission, or a search space associated with the PDCCH transmission;
- and;
- decoding the downlink shared channel transmission based on the determined MCS.
Dependencies are inferred from the claim text.