US 12,658,985 B2 · Mapping multiple-input multiple-output layers, modulation and coding scheme selection and control signaling thereof

Abstract

Embodiments of the invention relate to a first communication device that maps a set of MIMO layers (M1, . . . , ML) into two or more subsets of MIMO layers (S1, . . . , SG) based on a modulation for each MIMO layer (Ml) and selects a modulation and coding scheme (MCS) for the set of MIMO layers (M1, . . . , ML) based on a code rate RC for a code word C and/or a modulation for a subset of MIMO layers (Sg). Further, the first communication device transmits the code word C on the set of MIMO layers (M1, . . . , ML) to a second communication device based on the selected MCS and transmits control information indicating the selected MCS and a result of the mapping of the set of MIMO layers (M1, . . . , ML) to the second communication device. The first communication device can thereby provide better protection of the systematic bits of the code word.

Claims20

Dependent claims

A first communication device for a communication system, the first communication device being configured to:

map a set of multiple-input-multiple-output (MIMO) layers (M1, . . . , ML) into two or more subsets of MIMO layers (S1, . . . , SG) based on a modulation for each respective MIMO layer (Ml) in the set of MIMO layers (M1, . . . , ML), wherein MIMO layers in a respective subset of MIMO layers have a same modulation;
select a modulation and coding scheme (MCS) for the set of MIMO layers (M1, . . . , ML) based on a code rate RC for a code word C and/or a modulation for a subset of MIMO layers (Sg) among the two or more subsets of MIMO layers (S1, . . . , SG);
transmit the code word C on the set of MIMO layers (M1, . . . , ML) in a MIMO transmission to a second communication device based on the selected MCS;
and
transmit control information to the second communication device, the control information indicating the selected MCS and a result of the mapping of the set of MIMO layers (M1, . . . , ML) into the two or more subsets of MIMO layers (S1, . . . , SG).

2 more elements

A second communication device for a communication system, the second communication device being configured to:

receive a code word C on a set of multiple-input-multiple-output (MIMO) layers (M1, . . . , ML) in a MIMO transmission from a first communication device based on a modulation and coding scheme (MCS), the set of MIMO layers (M1, . . . , ML) being mapped into two or more subsets of MIMO layers (S1, . . . , SG) based on a modulation for each respective MIMO layer (Ml) in the set of MIMO layers (M1, . . . , ML), wherein MIMO layers in a same subset of MIMO layers have a same modulation;
receive control information from the first communication device, the control information indicating the MCS and a result of the mapping of the set of MIMO layers (M1, . . . , ML) into the two or more subsets of MIMO layers (S1, . . . , SG);
and
demodulate and decode the MIMO transmission based on the control information to determine the code word C.

1 more element

Dependencies are inferred from the claim text.

Mapping multiple-input multiple-output layers, modulation and coding scheme selection and control signaling thereof

Life of this patent

Mapping multiple-input multiple-output layers, modulation and coding scheme selection and control signaling thereof

Life of this patent

Abstract

Claims20