Modulation processing method and device

A coding and modulation processing method, comprising:

• a UE receiving a high-layer configuration signaling transmitted by a base station, wherein the high-layer configuration signaling is used to indicate whether to support a high-order Quadrature Amplitude Modulation (QAM) modulation scheme, wherein the high-order QAM modulation scheme is a modulation scheme of M QAM and M is a number greater than 64;
• after the UE receives the high-layer configuration signaling, the method further comprises:
• the UE receiving a downlink control signaling transmitted by the base station, wherein the downlink control signaling at least comprises a modulation and coding scheme field (IMCS), when the high-layer configuration signaling indicates not supporting the high-order QAM modulation scheme, then the modulation and coding scheme field (IMCS) being determined based on a first modulation and transport block size (TBS) index table which does not support the high-order QAM modulation scheme;
• when the high-layer configuration signaling indicates supporting the high-order QAM modulation scheme, in combination with predefined information, determining whether the modulation and coding scheme field (IMCS) is determined based on a second modulation and TBS index table which supports the high-order QAM modulation scheme.

A base station, comprising:

• a configuration information transmitting unit, configured to:
• transmit a high-layer configuration signaling to a UE, wherein the high-layer configuration signaling is used to indicate whether to support a high-order Quadrature Amplitude Modulation (QAM) modulation scheme, and the high-order QAM modulation scheme is a modulation scheme of M QAM, wherein M is a number greater than 64;
• the base station further comprises:
• a downlink control information transmitting unit, configured to:
• transmit a downlink control signaling to the UE, wherein the downlink control signaling at least comprises a modulation and coding scheme field (IMCS), when the high-layer configuration signaling indicates not supporting the high-order QAM modulation scheme, then the modulation and coding scheme field (IMCS) is determined based on a first modulation and transport block size (TBS) index table which does not support the high-order QAM modulation scheme;
• when the high-layer configuration signaling indicates supporting the high-order QAM modulation scheme, in combination with predefined information, it is to determine whether the modulation and coding scheme field (IMCS) is determined based on a second modulation and TBS index table which supports the high-order QAM.

A user equipment (UE), wherein, the UE comprises:

• a configuration information receiving unit, configured to receive a high-layer configuration signaling transmitted by a base station, wherein the high-layer configuration signaling is used to indicate whether to support a high-order Quadrature Amplitude Modulation (QAM) modulation scheme, and the high-order QAM modulation scheme is a modulation scheme of M QAM, wherein M is a number greater than 64;
• the UE further comprises:
• a downlink control information receiving and detecting unit, configured to:
• receive and detect a downlink control signaling transmitted by the base station, wherein the downlink control signaling at least comprises a modulation and coding scheme field (IMCS), when the high-layer configuration signaling indicates not supporting the high-order QAM, then the modulation and coding scheme field (IMCS) is determined based on a first modulation and transport block size (TBS) index table which does not support the high-order QAM modulation scheme;
• when the high-layer configuration signaling indicates supporting the high-order QAM modulation scheme, in combination with predefined information, it is to determine whether the modulation and coding scheme field (IMCS) is determined based on a second modulation and TBS index table which supports the high-order QAM modulation scheme.