Modulation coding scheme (mcs) indication in lte uplink

An apparatus for wireless communications, comprising:

• a processor;
• memory in electronic communication with the processor;
• and
• instructions executable by the processor to:
• receive, by a user equipment (UE), downlink control information (DCI) comprising an uplink (UL) grant of resources for the UE, the DCI having a DCI format and configured to convey a modulation coding scheme (MCS) table reference;
• identify an MCS table from a plurality of MCS tables based on the MCS table reference conveyed in the DCI, wherein the MCS table defines modulation and coding to be utilized for UL transmissions on the resources granted in the UL grant;
• and
• send one or more UL transmissions modulated and coded according to the MCS table.

A non-transitory computer-readable medium for wireless communications storing instructions executable by a processor to:

• receive, by a user equipment (UE), downlink control information (DCI) comprising an uplink (UL) grant of resources for the UE, the DCI having a DCI format and configured to convey a modulation coding scheme (MCS) table reference;
• identify an MCS table from a plurality of MCS tables based on the MCS table reference conveyed in the DCI, wherein the MCS table defines modulation and coding to be utilized for UL transmissions on the resources granted in the UL grant;
• and
• send one or more UL transmissions modulated and coded according to the MCS table.

A method for wireless communications, comprising:

• configuring downlink control information (DCI) to have a DCI format and to convey a modulation coding scheme (MCS) table reference;
• sending, to a user equipment (UE), the DCI, the DCI comprising an uplink (UL) grant of resources for the UE;
• and
• receiving, from the UE, one or more UL transmissions modulated and coded according to an MCS table from a plurality of MCS tables, the MCS table identified based on the MCS table reference conveyed in the DCI.