Communication method, terminal, network device, and storage medium

Abstract

This disclosure relates to a communication method, a terminal, a network device, and a storage medium. The communication method includes: a terminal determining a first modulation and coding scheme from a first set of modulation and coding schemes, wherein the first set of modulation and coding schemes is obtained by adding and / or deleting modulation and coding schemes from a second set of modulation and coding schemes, the second set of modulation and coding schemes being a set of modulation and coding schemes specified in a protocol, and the second set of modulation and coding schemes does not include modulation and coding schemes with a modulation order of 12. This disclosure can improve transmission rates.

Description

Communication methods, terminals, network devices and storage media Technical Field This disclosure relates to the field of communication technology, and in particular to communication methods, terminals, network devices and storage media. Background Technology Currently, the Physical Downlink Shared Channel (PDSCH) supports modulation and coding schemes up to 1024 Quadrature Amplitude Modulation (QAM). The Physical Uplink Shared Channel (PUSCH) supports modulation and coding schemes up to 256 QAM. Summary of the Invention This disclosure presents a communication method, a terminal, a network device, and a storage medium. According to a first aspect of the present disclosure, a communication method is proposed, the method comprising: a terminal determining a first modulation and coding scheme from a first modulation and coding scheme set, wherein the first modulation and coding scheme set is obtained by adding and / or deleting modulation and coding schemes in a second modulation and coding scheme set, the second modulation and coding scheme set is a modulation and coding scheme set specified in a protocol, and the second modulation and coding scheme set does not include modulation and coding schemes with a modulation order of 12. According to a second aspect of the present disclosure, a communication method is proposed, the method comprising: a network device determining a first modulation and coding scheme from a first modulation and coding scheme set, wherein the first modulation and coding scheme set is obtained by adding and / or deleting modulation and coding schemes in a second modulation and coding scheme set, the second modulation and coding scheme set is a modulation and coding scheme set specified in a protocol, and the second modulation and coding scheme set does not include modulation and coding schemes with a modulation order of 12. According to a third aspect of the present disclosure, a terminal is provided, comprising: a processing module, configured to determine a first modulation and coding scheme from a first modulation and coding scheme set, wherein the first modulation and coding scheme set is obtained by adding and / or deleting modulation and coding schemes from a second modulation and coding scheme set, the second modulation and coding scheme set is a modulation and coding scheme set specified in a protocol, and the second modulation and coding scheme set does not include modulation and coding schemes with a modulation order of 12. According to a fourth aspect of the present disclosure, a network device is provided, comprising: a processing module, configured to determine a first modulation and coding scheme from a first modulation and coding scheme set, wherein the first modulation and coding scheme set is obtained by adding and / or deleting modulation and coding schemes from a second modulation and coding scheme set, the second modulation and coding scheme set is a modulation and coding scheme set specified in a protocol, and the second modulation and coding scheme set does not include modulation and coding schemes with a modulation order of 12. According to a fifth aspect of the present disclosure, a terminal is provided, comprising: one or more processors; wherein the terminal is configured to execute the first aspect and any one of the communication methods in the first aspect. According to a sixth aspect of the present disclosure, a network device is provided, comprising: one or more processors; wherein the network device is configured to perform the second aspect and any one of the communication methods in the second aspect. According to a seventh aspect of the present disclosure, a communication system is provided, including a terminal and a network device, wherein the terminal is configured to implement the first aspect and any one of the communication methods in the first aspect, and the network device is configured to implement the second aspect and any one of the communication methods in the second aspect. According to an eighth aspect of the present disclosure, a storage medium is provided that stores instructions which, when executed on a communication device, cause the communication device to perform a communication method as described in the first aspect and any one thereof, or the second aspect and any one thereof. According to a ninth aspect of the present disclosure, a program product is provided, comprising: a computer program, which, when executed by a communication device, causes the communication device to perform a communication method as described in the first aspect and any one of the first aspects or the second aspect and the second aspect. This disclosure determines a first modulation and coding scheme from a first set of modulation and coding schemes, which is obtained by adding to and / or deleting from a second set of modulation and coding schemes. The second set of modulation and coding schemes is a set of modulation and coding schemes specified in the protocol, and does not include modulation and coding schemes with a modulation order of 12. This enables the use of higher-order modulation schemes to increase transmission rates, and can accommodate different service requirements, such as Extended Reality (XR) services. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure. Figure 1 is a schematic diagram of a communication system architecture according to an embodiment of the present disclosure. Figure 2 is a schematic diagram of a communication method interaction according to an embodiment of the present disclosure. Figure 3 is a flowchart illustrating a communication method according to an embodiment of the present disclosure. Figure 4 is a flowchart illustrating a communication method according to an embodiment of the present disclosure. Figure 5 is a schematic diagram of the communication method interaction according to an embodiment of the present disclosure. Figure 6a is a schematic diagram of the structure of the terminal proposed in an embodiment of this disclosure. Figure 6b is a schematic diagram of the structure of the network device proposed in an embodiment of this disclosure. Figure 7a is a schematic diagram of the structure of a communication device proposed in an embodiment of this disclosure. Figure 7b is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. Detailed Implementation This disclosure presents a communication method, a terminal, a network device, and a storage medium. In a first aspect, embodiments of this disclosure propose a communication method, the method comprising: a terminal determining a first modulation and coding scheme from a first modulation and coding scheme set, wherein the first modulation and coding scheme set is obtained by adding and / or deleting modulation and coding schemes in a second modulation and coding scheme set, the second modulation and coding scheme set is a modulation and coding scheme set specified in a protocol, and the second modulation and coding scheme set does not include modulation and coding schemes with a modulation order of 12. In some alternative embodiments of the first aspect, the first modulation and coding scheme set includes multiple modulation and coding schemes, and the multiple modulation and coding schemes include at least one modulation and coding scheme with a modulation order of 12. In some optional embodiments of the first aspect, the first modulation and coding scheme set includes a first number of modulation and coding schemes and a second number of modulation and coding schemes. The first number of modulation and coding schemes is obtained by adding and / or deleting modulation and coding schemes in the second set of modulation and coding schemes. The second number of modulation and coding schemes is determined based on the type of modulation order. The first number of modulation and coding schemes includes at least one of the following: two modulation and coding schemes with a modulation order of 2 obtained by deleting modulation and coding schemes in the second set of modulation and coding schemes; and modulation and coding schemes with a modulation order of 2 obtained by adding and / or deleting modulation and coding schemes in the second set of modulation and coding schemes. By reducing the number of modulation codes in the second set of modulation codes, three modulation codes with a modulation order of 4 are obtained; by reducing the number of modulation codes in the second set of modulation codes, seven modulation codes with a modulation order of 6 are obtained; by reducing the number of modulation codes in the second set of modulation codes, six modulation codes with a modulation order of 8 are obtained; by reducing the number of modulation codes in the second set of modulation codes, four modulation codes with a modulation order of 10 are obtained; and by adding modulation codes in the second set of modulation codes, four modulation codes with a modulation order of 12 are obtained. In some optional embodiments of the first aspect, the first set of modulation and coding schemes includes at least one of the following modulation and coding schemes: a modulation and coding scheme with a modulation order of 2, a code rate ratio of 120 to 1024, and a spectral efficiency of 0.2344; a modulation and coding scheme with a modulation order of 2, a code rate ratio of 449 to 1024, and a spectral efficiency of 0.8770; a modulation and coding scheme with a modulation order of 4, a code rate ratio of 378 to 1024, and a spectral efficiency of 1.4766; a modulation and coding scheme with a modulation order of 4, a code rate ratio of 490 to 1024, and a spectral efficiency of 1.9141; and a modulation and coding scheme with a modulation order of 4, a code rate ratio of 616 to 1024, and a spectral efficiency of 2.4063. Modulation coding schemes with a modulation order of 6, a code rate ratio of 466 to 1024, and a spectral efficiency of 2.7305; modulation coding schemes with a modulation order of 6, a code rate ratio of 567 to 1024, and a spectral efficiency of 3.3223; modulation coding schemes with a modulation order of 6, a code rate ratio of 666 to 1024, and a spectral efficiency of 3.9023; modulation coding schemes with a modulation order of 6, a code rate ratio of 719 to 1024, and a spectral efficiency of 4.2129; modulation coding schemes with a modulation order of 6, a code rate ratio of 772 to 1024, and a spectral efficiency of 4.5234; modulation coding schemes with a modulation order of 6, a code rate ratio of 822 to 1024, and a spectral efficiency of 4.8164; The following modulation and coding schemes are listed: a modulation order of 6 with a code rate ratio of 873 to 1024 and a spectral efficiency of 5.1152; a modulation order of 8 with a code rate ratio of 682.5 to 1024 and a spectral efficiency of 5.3320; a modulation order of 8 with a code rate ratio of 754 to 1024 and a spectral efficiency of 5.8906; a modulation order of 8 with a code rate ratio of 797 to 1024 and a spectral efficiency of 6.2266; a modulation order of 8 with a code rate ratio of 885 to 1024 and a spectral efficiency of 6.9141; and a modulation order of 8 with a code rate ratio of 916.5 to 1024 and a spectral efficiency of 7.1602. The following modulation and coding schemes are used: a modulation order of 8, a code rate ratio of 948 to 1024, and a spectral efficiency of 7.4063; a modulation order of 10, a code rate ratio of 805.5 to 1024, and a spectral efficiency of 7.8662; a modulation order of 10, a code rate ratio of 853 to 1024, and a spectral efficiency of 8.3301; a modulation order of 10, a code rate ratio of 900.5 to 1024, and a spectral efficiency of 8.7939; a modulation order of 10, a code rate ratio of 948 to 1024, and a spectral efficiency of 9.2578; and a modulation order of 12, a code rate ratio of 829.5 to 1024, and a spectral efficiency of 9.The modulation and coding schemes of 7207 include: a modulation order of 12, a code rate ratio of 869 to 1024, and a spectral efficiency of 10.1836; a modulation order of 12, a code rate ratio of 908.5 to 1024, and a spectral efficiency of 10.6465; a modulation order of 12, a code rate ratio of 948 to 1024, and a spectral efficiency of 11.1093; a modulation order of 2 with null values ​​for code rate and spectral efficiency; a modulation order of 4 with null values ​​for code rate and spectral efficiency; a modulation order of 6 with null values ​​for code rate and spectral efficiency; a modulation order of 8 with null values ​​for code rate and spectral efficiency; a modulation order of 10 with null values ​​for code rate and spectral efficiency; and a modulation order of 12 with null values ​​for code rate and spectral efficiency. In some alternative embodiments of the first aspect, the highest modulation order supported by the terminal is 10 or 12. In some alternative embodiments of the first aspect, the first modulation and coding scheme set includes a first number of modulation and coding schemes, the first number of modulation and coding schemes being obtained by adding and / or deleting modulation and coding schemes from the second modulation and coding scheme set. The first number of modulation and coding schemes includes at least one of the following: three modulation and coding schemes with a modulation order of 2 obtained by reducing the modulation and coding schemes in the second set of modulation and coding schemes; three modulation and coding schemes with a modulation order of 4 obtained by reducing the modulation and coding schemes in the second set of modulation and coding schemes; seven modulation and coding schemes with a modulation order of 6 obtained by reducing the modulation and coding schemes in the second set of modulation and coding schemes; six modulation and coding schemes with a modulation order of 8 obtained by reducing the modulation and coding schemes in the second set of modulation and coding schemes; four modulation and coding schemes with a modulation order of 10 obtained by reducing the modulation and coding schemes in the second set of modulation and coding schemes; and three modulation and coding schemes with a modulation order of 12 obtained by adding modulation and coding schemes to the second set of modulation and coding schemes. In some optional embodiments of the first aspect, the first set of modulation and coding schemes includes at least one of the following modulation and coding schemes: a modulation and coding scheme with a modulation order of 2, a code rate ratio of 120 to 1024, and a spectral efficiency of 0.2344; a modulation and coding scheme with a modulation order of 2, a code rate ratio of 193 to 1024, and a spectral efficiency of 0.3770; a modulation and coding scheme with a modulation order of 2, a code rate ratio of 449 to 1024, and a spectral efficiency of 0.8770; a modulation and coding scheme with a modulation order of 4, a code rate ratio of 378 to 1024, and a spectral efficiency of 1.4766; and a modulation and coding scheme with a modulation order of 4, a code rate ratio of 490 to 1024, and a spectral efficiency of 1.9141. The following modulation and coding schemes are listed: a modulation order of 4, a code rate ratio of 616 to 1024, and a spectral efficiency of 2.4063; a modulation order of 6, a code rate ratio of 466 to 1024, and a spectral efficiency of 2.7305; a modulation order of 6, a code rate ratio of 567 to 1024, and a spectral efficiency of 3.3223; a modulation order of 6, a code rate ratio of 666 to 1024, and a spectral efficiency of 3.9023; a modulation order of 6, a code rate ratio of 719 to 1024, and a spectral efficiency of 4.2129; and a modulation order of 6, a code rate ratio of 772 to 1024, and a spectral efficiency of 4.5234. The following modulation and coding schemes are listed: a modulation order of 6, a code rate ratio of 822 to 1024, and a spectral efficiency of 4.8164; a modulation order of 6, a code rate ratio of 873 to 1024, and a spectral efficiency of 5.1152; a modulation order of 8, a code rate ratio of 682.5 to 1024, and a spectral efficiency of 5.3320; a modulation order of 8, a code rate ratio of 754 to 1024, and a spectral efficiency of 5.8906; a modulation order of 8, a code rate ratio of 797 to 1024, and a spectral efficiency of 6.2266; and a modulation order of 8, a code rate ratio of 885 to 1024, and a spectral efficiency of 6.9141. Modulation coding schemes are as follows: Modulation order 8, code rate ratio of 916.5 to 1024, spectral efficiency of 7.1602; Modulation order 8, code rate ratio of 948 to 1024, spectral efficiency of 7.4063; Modulation order 10, code rate ratio of 805.5 to 1024, spectral efficiency of 7.8662; Modulation order 10, code rate ratio of 853 to 1024, spectral efficiency of 8.3301; Modulation order 10, code rate ratio of 900.5 to 1024, spectral efficiency of 8.7939; Modulation order 10, code rate ratio of 948 to 1024, spectral efficiency of 9.The modulation and coding schemes are as follows: 2578; modulation order 12, code rate ratio of 840.5 to 1024, or 843 to 1024, with a spectral efficiency of 9.8750; modulation order 12, code rate ratio of 895 to 1024, with a spectral efficiency of 10.4922; modulation order 12, code rate ratio of 948 to 1024, with a spectral efficiency of 11.1093 or 11.1094. Modulation coding schemes are categorized as follows: modulation order 2, with null values ​​for code rate and spectral efficiency; modulation order 4, with null values ​​for code rate and spectral efficiency; modulation order 6, with null values ​​for code rate and spectral efficiency; modulation order 8, with null values ​​for code rate and spectral efficiency; modulation order 10, with null values ​​for code rate and spectral efficiency; and modulation order 12, with null values ​​for code rate and spectral efficiency. In some alternative embodiments of the first aspect, the terminal supports a maximum modulation order of 12 for downlink transmission, and the first modulation and coding scheme is used to receive the Physical Downlink Shared Channel (PDSCH). In some alternative embodiments of the first aspect, each modulation and coding scheme in the first set of modulation and coding schemes corresponds to an index and a spectral efficiency. The first set of modulation and coding schemes includes multiple modulation and coding schemes with a modulation order of 12. Among the multiple modulation and coding schemes with a modulation order of 12, the spectral efficiencies corresponding to every two adjacent modulation and coding schemes have the same difference. In some optional embodiments of the first aspect, each modulation and coding scheme in the first set of modulation and coding schemes corresponds to a code rate, the code rate being in the range of N-0.5 to N+0.5, the code rate accuracy being at the level of 0.001 or 0.0001, and N being determined based on the modulation order and spectral efficiency corresponding to the modulation and coding scheme. In a second aspect, a communication method is provided, the method comprising: a network device determining a first modulation and coding scheme from a first modulation and coding scheme set, wherein the first modulation and coding scheme set is obtained by adding and / or deleting modulation and coding schemes in a second modulation and coding scheme set, the second modulation and coding scheme set is a set of modulation and coding schemes specified in a protocol, and the second modulation and coding scheme set does not include modulation and coding schemes with a modulation order of 12. In some alternative embodiments of the second aspect, the first modulation and coding scheme set includes multiple modulation and coding schemes, and the multiple modulation and coding schemes include at least one modulation and coding scheme with a modulation order of 12. In some alternative embodiments of the second aspect, the first modulation and coding scheme set includes a first number of modulation and coding schemes. The first number of modulation and coding schemes are obtained by adding and / or deleting modulation and coding schemes in the second set of modulation and coding schemes. The second number of modulation and coding schemes are determined based on the type of modulation order. The first number of modulation and coding schemes includes at least one of the following: two modulation and coding schemes with a modulation order of 2 obtained by deleting modulation and coding schemes in the second set of modulation and coding schemes; three modulation and coding schemes with a modulation order of 4 obtained by deleting modulation and coding schemes in the second set of modulation and coding schemes; seven modulation and coding schemes with a modulation order of 6 obtained by deleting modulation and coding schemes in the second set of modulation and coding schemes; six modulation and coding schemes with a modulation order of 8 obtained by deleting modulation and coding schemes in the second set of modulation and coding schemes; four modulation and coding schemes with a modulation order of 10 obtained by deleting modulation and coding schemes in the second set of modulation and coding schemes; and four modulation and coding schemes with a modulation order of 12 obtained by adding modulation and coding schemes in the second set of modulation and coding schemes. In some optional embodiments of the second aspect, the first set of modulation and coding schemes includes at least one of the following modulation and coding schemes: a modulation and coding scheme with a modulation order of 2, a code rate ratio of 120 to 1024, and a spectral efficiency of 0.2344; a modulation and coding scheme with a modulation order of 2, a code rate ratio of 449 to 1024, and a spectral efficiency of 0.8770; a modulation and coding scheme with a modulation order of 4, a code rate ratio of 378 to 1024, and a spectral efficiency of 1.4766; a modulation and coding scheme with a modulation order of 4, a code rate ratio of 490 to 1024, and a spectral efficiency of 1.9141; and a modulation and coding scheme with a modulation order of 4, a code rate ratio of 616 to 1024, and a spectral efficiency of 2.4063. Modulation coding schemes with a modulation order of 6, a code rate ratio of 466 to 1024, and a spectral efficiency of 2.7305; modulation coding schemes with a modulation order of 6, a code rate ratio of 567 to 1024, and a spectral efficiency of 3.3223; modulation coding schemes with a modulation order of 6, a code rate ratio of 666 to 1024, and a spectral efficiency of 3.9023; modulation coding schemes with a modulation order of 6, a code rate ratio of 719 to 1024, and a spectral efficiency of 4.2129; modulation coding schemes with a modulation order of 6, a code rate ratio of 772 to 1024, and a spectral efficiency of 4.5234; modulation coding schemes with a modulation order of 6, a code rate ratio of 822 to 1024, and a spectral efficiency of 4.8164; The following modulation and coding schemes are listed: a modulation order of 6 with a code rate ratio of 873 to 1024 and a spectral efficiency of 5.1152; a modulation order of 8 with a code rate ratio of 682.5 to 1024 and a spectral efficiency of 5.3320; a modulation order of 8 with a code rate ratio of 754 to 1024 and a spectral efficiency of 5.8906; a modulation order of 8 with a code rate ratio of 797 to 1024 and a spectral efficiency of 6.2266; a modulation order of 8 with a code rate ratio of 885 to 1024 and a spectral efficiency of 6.9141; and a modulation order of 8 with a code rate ratio of 916.5 to 1024 and a spectral efficiency of 7.1602. The following modulation and coding schemes are used: a modulation order of 8, a code rate ratio of 948 to 1024, and a spectral efficiency of 7.4063; a modulation order of 10, a code rate ratio of 805.5 to 1024, and a spectral efficiency of 7.8662; a modulation order of 10, a code rate ratio of 853 to 1024, and a spectral efficiency of 8.3301; a modulation order of 10, a code rate ratio of 900.5 to 1024, and a spectral efficiency of 8.7939; a modulation order of 10, a code rate ratio of 948 to 1024, and a spectral efficiency of 9.2578; and a modulation order of 12, a code rate ratio of 829.5 to 1024, and a spectral efficiency of 9.The modulation and coding schemes of 7207 include: a modulation order of 12, a code rate ratio of 869 to 1024, and a spectral efficiency of 10.1836; a modulation order of 12, a code rate ratio of 908.5 to 1024, and a spectral efficiency of 10.6465; a modulation order of 12, a code rate ratio of 948 to 1024, and a spectral efficiency of 11.1093; a modulation order of 2 with null values ​​for code rate and spectral efficiency; a modulation order of 4 with null values ​​for code rate and spectral efficiency; a modulation order of 6 with null values ​​for code rate and spectral efficiency; a modulation order of 8 with null values ​​for code rate and spectral efficiency; a modulation order of 10 with null values ​​for code rate and spectral efficiency; and a modulation order of 12 with null values ​​for code rate and spectral efficiency. In some alternative embodiments of the second aspect, the highest modulation order supported by the terminal connected to the network device is 10 or 12. In some optional embodiments of the second aspect, the first modulation and coding scheme set includes a first number of modulation and coding schemes, which are obtained by adding and / or deleting modulation and coding schemes in the second modulation and coding scheme set. The first number of modulation and coding schemes includes at least one of the following: three modulation and coding schemes with a modulation order of 2 obtained by deleting modulation and coding schemes in the second modulation and coding scheme set; three modulation and coding schemes with a modulation order of 4 obtained by deleting modulation and coding schemes in the second modulation and coding scheme set; seven modulation and coding schemes with a modulation order of 6 obtained by deleting modulation and coding schemes in the second modulation and coding scheme set; six modulation and coding schemes with a modulation order of 8 obtained by deleting modulation and coding schemes in the second modulation and coding scheme set; four modulation and coding schemes with a modulation order of 10 obtained by deleting modulation and coding schemes in the second modulation and coding scheme set; and three modulation and coding schemes with a modulation order of 12 obtained by adding modulation and coding schemes in the second modulation and coding scheme set. In some optional embodiments of the second aspect, the first set of modulation and coding schemes includes at least one of the following modulation and coding schemes: a modulation and coding scheme with a modulation order of 2, a code rate ratio of 120 to 1024, and a spectral efficiency of 0.2344; a modulation and coding scheme with a modulation order of 2, a code rate ratio of 193 to 1024, and a spectral efficiency of 0.3770; a modulation and coding scheme with a modulation order of 2, a code rate ratio of 449 to 1024, and a spectral efficiency of 0.8770; a modulation and coding scheme with a modulation order of 4, a code rate ratio of 378 to 1024, and a spectral efficiency of 1.4766; and a modulation and coding scheme with a modulation order of 4, a code rate ratio of 490 to 1024, and a spectral efficiency of 1.9141. Modulation coding schemes: A modulation order of 4, a code rate ratio of 616 to 1024, and a spectral efficiency of 2.4063; a modulation order of 6, a code rate ratio of 466 to 1024, and a spectral efficiency of 2.7305; a modulation order of 6, a code rate ratio of 567 to 1024, and a spectral efficiency of 3.3223; a modulation order of 6, a code rate ratio of 666 to 1024, and a spectral efficiency of 3.9023; a modulation order of 6, a code rate ratio of 719 to 1024, and a spectral efficiency of 4.2129; a modulation order of 6, a code rate ratio of 772 to 1... The following modulation and coding schemes have the following spectral efficiency: a ratio of 0.24, a code rate of 822 to 1024, and a code rate of 4.8164; a modulation and coding scheme with a modulation order of 6, a code rate of 873 to 1024, and a code rate of 5.1152; a modulation and coding scheme with a modulation order of 8, a code rate of 682.5 to 1024, and a code rate of 5.3320; a modulation and coding scheme with a modulation order of 8, a code rate of 754 to 1024, and a code rate of 5.8906; and a modulation and coding scheme with a modulation order of 8, a code rate of 797 to 1024, and a code rate of 6.22. The modulation and coding schemes are as follows: 66; modulation order 8, code rate ratio of 885 to 1024, spectral efficiency of 6.9141; modulation order 8, code rate ratio of 916.5 to 1024, spectral efficiency of 7.1602; modulation order 8, code rate ratio of 948 to 1024, spectral efficiency of 7.4063; modulation order 10, code rate ratio of 805.5 to 1024, spectral efficiency of 7.8662; modulation order 10, code rate ratio of 853 to 1024, spectral efficiency of 8.3301; modulation... The following modulation and coding schemes have the following spectral efficiency: a modulation order of 10, a code rate ratio of 900.5 to 1024, and a spectral efficiency of 8.7939; a modulation order of 10, a code rate ratio of 948 to 1024, and a spectral efficiency of 9.2578; a modulation order of 12, a code rate ratio of 840.5 to 1024, or 843 to 1024, and a spectral efficiency of 9.8750; a modulation order of 12, a code rate ratio of 895 to 1024, and a spectral efficiency of 10.4922; and a modulation order of 12, a code rate ratio of 948 to 1024, and a spectral efficiency of 11.1093 or 11.The modulation and coding schemes for 1094 are as follows: modulation order 2 with null values ​​for code rate and spectral efficiency; modulation order 4 with null values ​​for code rate and spectral efficiency; modulation order 6 with null values ​​for code rate and spectral efficiency; modulation order 8 with null values ​​for code rate and spectral efficiency; modulation order 10 with null values ​​for code rate and spectral efficiency; and modulation order 12 with null values ​​for code rate and spectral efficiency. In some alternative embodiments of the second aspect, the highest modulation order supported by the terminal connected to the network device is 12 for downlink transmission, and the first modulation and coding scheme is used to receive PDSCH. In some optional embodiments of the second aspect, each modulation and coding scheme in the first set of modulation and coding schemes corresponds to an index and a spectral efficiency. The first set of modulation and coding schemes includes multiple modulation and coding schemes with a modulation order of 12. Among the multiple modulation and coding schemes with a modulation order of 12, the spectral efficiencies corresponding to every two adjacent modulation and coding schemes have the same difference. In some optional embodiments of the second aspect, each modulation and coding scheme in the first set of modulation and coding schemes corresponds to a code rate, the code rate being in the range of N-0.5 to N+0.5, the code rate accuracy being at the level of 0.001 or 0.0001, and N being determined based on the modulation order and spectral efficiency corresponding to the modulation and coding scheme. Thirdly, a terminal is provided, comprising: a processing module, configured to determine a first modulation and coding scheme from a first modulation and coding scheme set, wherein the first modulation and coding scheme set is obtained by adding and / or deleting modulation and coding schemes from a second modulation and coding scheme set, the second modulation and coding scheme set is a modulation and coding scheme set specified in a protocol, and the second modulation and coding scheme set does not include modulation and coding schemes with a modulation order of 12. In some alternative embodiments of the third aspect, the first modulation coding scheme set includes multiple modulation coding schemes, and the multiple modulation coding schemes include at least one modulation coding scheme with a modulation order of 12. In some optional embodiments of the third aspect, the first modulation and coding scheme set includes a first number of modulation and coding schemes and a second number of modulation and coding schemes. The first number of modulation and coding schemes is obtained by adding and / or deleting modulation and coding schemes in the second set of modulation and coding schemes. The second number of modulation and coding schemes is determined based on the type of modulation order. The first number of modulation and coding schemes includes at least one of the following: two modulation and coding schemes with a modulation order of 2 obtained by deleting modulation and coding schemes in the second set of modulation and coding schemes; and modulation and coding schemes with a modulation order of 2 obtained by adding and / or deleting modulation and coding schemes in the second set of modulation and coding schemes. By reducing the number of modulation codes in the second set of modulation codes, three modulation codes with a modulation order of 4 are obtained; by reducing the number of modulation codes in the second set of modulation codes, seven modulation codes with a modulation order of 6 are obtained; by reducing the number of modulation codes in the second set of modulation codes, six modulation codes with a modulation order of 8 are obtained; by reducing the number of modulation codes in the second set of modulation codes, four modulation codes with a modulation order of 10 are obtained; and by adding modulation codes in the second set of modulation codes, four modulation codes with a modulation order of 12 are obtained. In some optional embodiments of the third aspect, the first set of modulation and coding schemes includes at least one of the following modulation and coding schemes: a modulation and coding scheme with a modulation order of 2, a code rate ratio of 120 to 1024, and a spectral efficiency of 0.2344; a modulation and coding scheme with a modulation order of 2, a code rate ratio of 449 to 1024, and a spectral efficiency of 0.8770; a modulation and coding scheme with a modulation order of 4, a code rate ratio of 378 to 1024, and a spectral efficiency of 1.4766; and a modulation and coding scheme with a modulation order of 4, a code rate ratio of 490 to 1024, and a spectral efficiency of... The modulation and coding schemes are as follows: 1.9141; modulation order 4, code rate ratio of 616 to 1024, spectral efficiency of 2.4063; modulation order 6, code rate ratio of 466 to 1024, spectral efficiency of 2.7305; modulation order 6, code rate ratio of 567 to 1024, spectral efficiency of 3.3223; modulation order 6, code rate ratio of 666 to 1024, spectral efficiency of 3.9023; modulation order 6, code rate ratio of 719 to 1024, spectral efficiency of 4.2129; modulation order 6, code rate of 77... The following modulation and coding schemes have the following spectral efficiency ratios: 2 / 1024 = 4.5234; 6 modulation order = 822 / 1024 = 4.8164; 6 modulation order = 873 / 1024 = 5.1152; 8 modulation order = 682.5 / 1024 = 5.3320; 8 modulation order = 754 / 1024 = 5.8906; 8 modulation order = 797 / 1024 = 6.2266. Modulation coding schemes: A modulation order of 8, a code rate ratio of 885 to 1024, and a spectral efficiency of 6.9141; a modulation order of 8, a code rate ratio of 916.5 to 1024, and a spectral efficiency of 7.1602; a modulation order of 8, a code rate ratio of 948 to 1024, and a spectral efficiency of 7.4063; a modulation order of 10, a code rate ratio of 805.5 to 1024, and a spectral efficiency of 7.8662; a modulation order of 10, a code rate ratio of 853 to 1024, and a spectral efficiency of 8.3301; a modulation order of 10, a code rate of 900.5 and... The following modulation and coding schemes have the following spectral efficiency: a ratio of 1024 to 948, resulting in a spectral efficiency of 8.7939; a modulation order of 10 with a code rate ratio of 948 to 1024, resulting in a spectral efficiency of 9.2578; a modulation order of 12 with a code rate ratio of 829.5 to 1024, resulting in a spectral efficiency of 9.7207; a modulation order of 12 with a code rate ratio of 869 to 1024, resulting in a spectral efficiency of 10.1836; a modulation order of 12 with a code rate ratio of 908.5 to 1024, resulting in a spectral efficiency of 10.6465; and a modulation order of 12 with a code rate ratio of 948 to 1024, resulting in a spectral efficiency of 11.The modulation and coding schemes for 1093 are as follows: modulation order 2 with null values ​​for code rate and spectral efficiency; modulation order 4 with null values ​​for code rate and spectral efficiency; modulation order 6 with null values ​​for code rate and spectral efficiency; modulation order 8 with null values ​​for code rate and spectral efficiency; modulation order 10 with null values ​​for code rate and spectral efficiency; and modulation order 12 with null values ​​for code rate and spectral efficiency. In some alternative embodiments of the third aspect, the highest modulation order supported by the terminal is 10 or 12. In some optional embodiments of the third aspect, the first modulation and coding scheme set includes a first number of modulation and coding schemes, which are obtained by adding and / or deleting modulation and coding schemes in the second modulation and coding scheme set. The first number of modulation and coding schemes includes at least one of the following: three modulation and coding schemes with a modulation order of 2 obtained by deleting modulation and coding schemes in the second modulation and coding scheme set; three modulation and coding schemes with a modulation order of 4 obtained by deleting modulation and coding schemes in the second modulation and coding scheme set; seven modulation and coding schemes with a modulation order of 6 obtained by deleting modulation and coding schemes in the second modulation and coding scheme set; six modulation and coding schemes with a modulation order of 8 obtained by deleting modulation and coding schemes in the second modulation and coding scheme set; four modulation and coding schemes with a modulation order of 10 obtained by deleting modulation and coding schemes in the second modulation and coding scheme set; and three modulation and coding schemes with a modulation order of 12 obtained by adding modulation and coding schemes in the second modulation and coding scheme set. In some optional embodiments of the third aspect, the first set of modulation and coding schemes includes at least one of the following modulation and coding schemes: a modulation and coding scheme with a modulation order of 2, a code rate ratio of 120 to 1024, and a spectral efficiency of 0.2344; a modulation and coding scheme with a modulation order of 2, a code rate ratio of 193 to 1024, and a spectral efficiency of 0.3770; a modulation and coding scheme with a modulation order of 2, a code rate ratio of 449 to 1024, and a spectral efficiency of 0.8770; a modulation and coding scheme with a modulation order of 4, a code rate ratio of 378 to 1024, and a spectral efficiency of 1.4766; a modulation and coding scheme with a modulation order of 4, a code rate of 490 to 1024... The following modulation and coding schemes have the following spectral efficiency ratios: 1.9141; 2.4063; 2.7305; 3.3223; 3.9023; and 4.2129. The following modulation and coding schemes have the following spectral efficiency ratios: 4.9141; 4.466; 10.24; 6.719; 10.24; 6.719; 10.24; 6.719; 10.24; 6.719; 10.24; 6.7141 ... The following modulation and coding schemes are listed: a modulation order of 6, a code rate ratio of 772 to 1024, and a spectral efficiency of 4.5234; a modulation order of 6, a code rate ratio of 822 to 1024, and a spectral efficiency of 4.8164; a modulation order of 6, a code rate ratio of 873 to 1024, and a spectral efficiency of 5.1152; a modulation order of 8, a code rate ratio of 682.5 to 1024, and a spectral efficiency of 5.3320; a modulation order of 8, a code rate ratio of 754 to 1024, and a spectral efficiency of 5.8906; and a modulation order of 8, with a code rate of 797 to 1024. The modulation and coding schemes with a ratio of 885 to 1024 have a spectral efficiency of 6.2266; those with a modulation order of 8 and a code rate of 916.5 to 1024 have a spectral efficiency of 7.1602; those with a modulation order of 8 and a code rate of 948 to 1024 have a spectral efficiency of 7.4063; those with a modulation order of 10 and a code rate of 805.5 to 1024 have a spectral efficiency of 7.8662; and those with a modulation order of 10 and a code rate of 853 to 1024 have a spectral efficiency of 8.3301. The modulation and coding schemes are as follows: a modulation order of 10 with a code rate ratio of 900.5 to 1024 and a spectral efficiency of 8.7939; a modulation order of 10 with a code rate ratio of 948 to 1024 and a spectral efficiency of 9.2578; a modulation order of 12 with a code rate ratio of 840.5 to 1024, or 843 to 1024, and a spectral efficiency of 9.8750; a modulation order of 12 with a code rate ratio of 895 to 1024 and a spectral efficiency of 10.4922; and a modulation order of... Modulation coding schemes with a code rate ratio of 948 to 1024 and a spectral efficiency of 11.1093 or 11.1094; modulation coding schemes with a modulation order of 2 and null values ​​for code rate and spectral efficiency; modulation coding schemes with a modulation order of 4 and null values ​​for code rate and spectral efficiency; modulation coding schemes with a modulation order of 6 and null values ​​for code rate and spectral efficiency; modulation coding schemes with a modulation order of 8 and null values ​​for code rate and spectral efficiency; modulation coding schemes with a modulation order of 10 and null values ​​for code rate and spectral efficiency; and modulation coding schemes with a modulation order of 12 and null values ​​for code rate and spectral efficiency. In some alternative embodiments of the third aspect, the terminal supports a maximum modulation order of 12 for downlink transmission, and the first modulation and coding scheme is used to receive the Physical Downlink Shared Channel (PDSCH). In some optional embodiments of the third aspect, each modulation and coding scheme in the first set of modulation and coding schemes corresponds to an index and a spectral efficiency. The first set of modulation and coding schemes includes multiple modulation and coding schemes with a modulation order of 12. Among the multiple modulation and coding schemes with a modulation order of 12, the spectral efficiencies corresponding to every two adjacent modulation and coding schemes have the same difference. In some optional embodiments of the third aspect, each modulation and coding scheme in the first set of modulation and coding schemes corresponds to a code rate, the code rate being in the range of N-0.5 to N+0.5, the code rate accuracy being at the level of 0.001 or 0.0001, and N being determined based on the modulation order and spectral efficiency corresponding to the modulation and coding scheme. Fourthly, a network device is provided, comprising: a processing module, configured to determine a first modulation and coding scheme from a first modulation and coding scheme set, wherein the first modulation and coding scheme set is obtained by adding and / or deleting modulation and coding schemes from a second modulation and coding scheme set, the second modulation and coding scheme set is a set of modulation and coding schemes specified in a protocol, and the second modulation and coding scheme set does not include modulation and coding schemes with a modulation order of 12. In some alternative embodiments of the fourth aspect, the first modulation coding scheme set includes multiple modulation coding schemes, and the multiple modulation coding schemes include at least one modulation coding scheme with a modulation order of 12. In some optional embodiments of the fourth aspect, the first modulation and coding scheme set includes a first number of modulation and coding schemes and a second number of modulation and coding schemes. The first number of modulation and coding schemes is obtained by adding and / or deleting modulation and coding schemes in the second set of modulation and coding schemes. The second number of modulation and coding schemes is determined based on the type of modulation order. The first number of modulation and coding schemes includes at least one of the following: two modulation and coding schemes with a modulation order of 2 obtained by deleting modulation and coding schemes in the second set of modulation and coding schemes; and modulation and coding schemes with a modulation order of 2 obtained by adding and / or deleting modulation and coding schemes in the second set of modulation and coding schemes. By reducing the number of modulation codes in the second set of modulation codes, three modulation codes with a modulation order of 4 are obtained; by reducing the number of modulation codes in the second set of modulation codes, seven modulation codes with a modulation order of 6 are obtained; by reducing the number of modulation codes in the second set of modulation codes, six modulation codes with a modulation order of 8 are obtained; by reducing the number of modulation codes in the second set of modulation codes, four modulation codes with a modulation order of 10 are obtained; and by adding modulation codes in the second set of modulation codes, four modulation codes with a modulation order of 12 are obtained. In some optional embodiments of the fourth aspect, the first set of modulation and coding schemes includes at least one of the following modulation and coding schemes: a modulation and coding scheme with a modulation order of 2, a code rate ratio of 120 to 1024, and a spectral efficiency of 0.2344; a modulation and coding scheme with a modulation order of 2, a code rate ratio of 449 to 1024, and a spectral efficiency of 0.8770; a modulation and coding scheme with a modulation order of 4, a code rate ratio of 378 to 1024, and a spectral efficiency of 1.4766; a modulation and coding scheme with a modulation order of 4, a code rate ratio of 490 to 1024, and a spectral efficiency of 1.9141; a modulation and coding scheme with a modulation order of 4... The following modulation and coding schemes have the following spectral efficiency: a code rate ratio of 616 to 1024 with a code rate of 2.4063; a modulation order of 6 with a code rate ratio of 466 to 1024 with a spectral efficiency of 2.7305; a modulation order of 6 with a code rate ratio of 567 to 1024 with a spectral efficiency of 3.3223; a modulation order of 6 with a code rate ratio of 666 to 1024 with a spectral efficiency of 3.9023; a modulation order of 6 with a code rate ratio of 719 to 1024 with a spectral efficiency of 4.2129; and a modulation order of 6 with a code rate ratio of 772 and... The following modulation and coding schemes have the following spectral efficiency: a ratio of 1024 to 822: 4.5234; a modulation and coding scheme with a modulation order of 6 and a code rate ratio of 822 to 1024: 4.8164; a modulation and coding scheme with a modulation order of 6 and a code rate ratio of 873 to 1024: 5.1152; a modulation and coding scheme with a modulation order of 8 and a code rate ratio of 682.5 to 1024: 5.3320; a modulation and coding scheme with a modulation order of 8 and a code rate ratio of 754 to 1024: 5.8906; and a modulation and coding scheme with a modulation order of 8 and a code rate ratio of 797 to 1024: 1024 to 1024. The following modulation and coding schemes have the following spectral efficiency values: 6.2266; 8th modulation order, code rate ratio of 885 to 1024, spectral efficiency of 6.9141; 8th modulation order, code rate ratio of 916.5 to 1024, spectral efficiency of 7.1602; 8th modulation order, code rate ratio of 948 to 1024, spectral efficiency of 7.4063; 10th modulation order, code rate ratio of 805.5 to 1024, spectral efficiency of 7.8662; 10th modulation order, code rate ratio of 853 to 1024. The following modulation and coding schemes have the following spectral efficiencies: 8.3301; 8.7939; 9.2578; 9.7207; 10.1836; and 9.1836. The following modulation and coding schemes have the following spectral efficiencies: 12 modulation order, 8.69% code rate, and 9.08% code rate. The following modulation and coding schemes have the following spectral efficiency: 10.6465; 12th modulation order, a code rate ratio of 948 to 1024, and a spectral efficiency of 11.1093; 2nd modulation order, with null code rate and spectral efficiency; 4th modulation order, with null code rate and spectral efficiency; 6th modulation order, with null code rate and spectral efficiency; 8th modulation order, with null code rate and spectral efficiency; 10th modulation order, with null code rate and spectral efficiency; and 12th modulation order, with null code rate and spectral efficiency. In some alternative embodiments of the fourth aspect, the highest modulation order supported by the terminal connected to the network device is 10 or 12. In some optional embodiments of the fourth aspect, the first modulation and coding scheme set includes a first number of modulation and coding schemes, which are obtained by adding and / or deleting modulation and coding schemes in the second modulation and coding scheme set. The first number of modulation and coding schemes includes at least one of the following: three modulation and coding schemes with a modulation order of 2 obtained by deleting modulation and coding schemes in the second modulation and coding scheme set; three modulation and coding schemes with a modulation order of 4 obtained by deleting modulation and coding schemes in the second modulation and coding scheme set; seven modulation and coding schemes with a modulation order of 6 obtained by deleting modulation and coding schemes in the second modulation and coding scheme set; six modulation and coding schemes with a modulation order of 8 obtained by deleting modulation and coding schemes in the second modulation and coding scheme set; four modulation and coding schemes with a modulation order of 10 obtained by deleting modulation and coding schemes in the second modulation and coding scheme set; and three modulation and coding schemes with a modulation order of 12 obtained by adding modulation and coding schemes in the second modulation and coding scheme set. In some optional embodiments of the fourth aspect, the first set of modulation and coding schemes includes at least one of the following modulation and coding schemes: a modulation and coding scheme with a modulation order of 2, a code rate ratio of 120 to 1024, and a spectral efficiency of 0.2344; a modulation and coding scheme with a modulation order of 2, a code rate ratio of 193 to 1024, and a spectral efficiency of 0.3770; a modulation and coding scheme with a modulation order of 2, a code rate ratio of 449 to 1024, and a spectral efficiency of 0.8770; a modulation and coding scheme with a modulation order of 4, a code rate ratio of 378 to 1024, and a spectral efficiency of 1.4766; and a modulation and coding scheme with a modulation order of 4, a code rate ratio of 490 to 1024, and a spectral efficiency of 1.9141. The following modulation and coding schemes are listed: a modulation order of 4, a code rate ratio of 616 to 1024, and a spectral efficiency of 2.4063; a modulation order of 6, a code rate ratio of 466 to 1024, and a spectral efficiency of 2.7305; a modulation order of 6, a code rate ratio of 567 to 1024, and a spectral efficiency of 3.3223; a modulation order of 6, a code rate ratio of 666 to 1024, and a spectral efficiency of 3.9023; a modulation order of 6, a code rate ratio of 719 to 1024, and a spectral efficiency of 4.2129; and a modulation order of 6, a code rate ratio of 772 to 1024, and a spectral efficiency of 4.5234. The following modulation and coding schemes are listed: a modulation order of 6, a code rate ratio of 822 to 1024, and a spectral efficiency of 4.8164; a modulation order of 6, a code rate ratio of 873 to 1024, and a spectral efficiency of 5.1152; a modulation order of 8, a code rate ratio of 682.5 to 1024, and a spectral efficiency of 5.3320; a modulation order of 8, a code rate ratio of 754 to 1024, and a spectral efficiency of 5.8906; a modulation order of 8, a code rate ratio of 797 to 1024, and a spectral efficiency of 6.2266; and a modulation order of 8, a code rate ratio of 885 to 1024, and a spectral efficiency of 6.9141. Modulation coding schemes are as follows: Modulation order 8, code rate ratio of 916.5 to 1024, spectral efficiency of 7.1602; Modulation order 8, code rate ratio of 948 to 1024, spectral efficiency of 7.4063; Modulation order 10, code rate ratio of 805.5 to 1024, spectral efficiency of 7.8662; Modulation order 10, code rate ratio of 853 to 1024, spectral efficiency of 8.3301; Modulation order 10, code rate ratio of 900.5 to 1024, spectral efficiency of 8.7939; Modulation order 10, code rate ratio of 948 to 1024, spectral efficiency of 9.The modulation and coding schemes are as follows: 2578; modulation order 12, code rate ratio of 840.5 to 1024, or 843 to 1024, with a spectral efficiency of 9.8750; modulation order 12, code rate ratio of 895 to 1024, with a spectral efficiency of 10.4922; modulation order 12, code rate ratio of 948 to 1024, with a spectral efficiency of 11.1093 or 11.1094. Modulation coding schemes are categorized as follows: modulation order 2, with null values ​​for code rate and spectral efficiency; modulation order 4, with null values ​​for code rate and spectral efficiency; modulation order 6, with null values ​​for code rate and spectral efficiency; modulation order 8, with null values ​​for code rate and spectral efficiency; modulation order 10, with null values ​​for code rate and spectral efficiency; and modulation order 12, with null values ​​for code rate and spectral efficiency. In some alternative embodiments of the fourth aspect, the highest modulation order supported by the terminal connected to the network device is 12 for downlink transmission, and the first modulation and coding scheme is used to receive PDSCH. In some optional embodiments of the fourth aspect, each modulation and coding scheme in the first set of modulation and coding schemes corresponds to an index and a spectral efficiency, and the first set of modulation and coding schemes includes multiple modulation and coding schemes with a modulation order of 12. In a modulation coding scheme with a modulation order of 12, the spectral efficiency of every two adjacent modulation coding schemes has the same difference. In some optional embodiments of the fourth aspect, each modulation and coding scheme in the first set of modulation and coding schemes corresponds to a code rate, the code rate is in the range of N-0.5 to N+0.5, the code rate accuracy is at the level of 0.001 or 0.0001, and N is determined based on the modulation order and spectral efficiency corresponding to the modulation and coding scheme. Fifthly, a terminal is provided, comprising: one or more processors; wherein the terminal is configured to execute the first aspect and any one of the communication methods in the first aspect. A sixth aspect provides a network device, comprising: one or more processors; wherein the network device is configured to perform the second aspect and any one of the communication methods in the second aspect. A seventh aspect provides a communication system, including a terminal and a network device, wherein the terminal is configured to implement the first aspect and any one of the communication methods in the first aspect, and the network device is configured to implement the second aspect and any one of the communication methods in the second aspect. Eighthly, a storage medium is provided that stores instructions, which, when executed on a communication device, cause the communication device to perform a communication method as described in the first aspect and any one thereof, or the second aspect and any one thereof. Ninthly, embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform the method as described in the optional implementations of the first or second aspect. In a tenth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in an optional implementation of the first or second aspect. Eleventhly, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the methods described in the optional implementations of the first or second aspect above. It is understood that the terminals, access network devices, first network elements, other network elements, core network devices, communication systems, storage media, program products, computer programs, chips, or chip systems involved in the embodiments of this disclosure are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects in the corresponding methods, and will not be repeated here. This disclosure provides communication methods, terminals, network devices, and storage media. In some embodiments, the terms "communication method" and "information processing method" can be used interchangeably, as can the terms "communication device" and "information processing device" and "communication device," and the terms "information processing system" and "communication system." This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments. In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. The technical environments of different embodiments can be combined to form new embodiments according to their inherent logical relationships. The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure. In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression. In the embodiments disclosed herein, "multiple" refers to two or more. In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably. In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc. In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc. The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not constitute limitations on the position, order, priority, number, or content of the descriptive objects. For descriptions of the descriptive objects, please refer to the claims or the context of the embodiments. The description should not impose unnecessary restrictions due to the use of prefixes. For example, if the described object is "field," then the ordinal numbers before "field" in "first field" and "second field" do not restrict the position or order of the "fields," nor do "first" and "second" restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the described object is "level," then the ordinal numbers before "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of described objects is not limited by ordinal numbers; there can be one or more. For example, in "first device," the number of "devices" can be one or more. In addition, objects modified by different prefixes can be the same or different. For example, if the described object is "device," then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the described object is "information," then "first information" and "second information" can be the same information or different information, and their content can be the same or different. In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A. In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably. In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”. In some embodiments, the apparatus and device may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "body", etc. In some embodiments, "network" can be interpreted as devices included in the network, such as access network devices, core network devices, etc. In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)," "base station (BS)," "radio base station," or "fixed station." In some embodiments, it may also be understood as "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," or "bandwidth part (BWP)." In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)," "user terminal," "mobile station (MS)," "mobile terminal (MT)," "subscriber station," "mobile unit," "subscriber unit," "wireless unit," "remote unit," "mobile device," "wireless device," "wireless communication device," "remote device," "mobile subscriber station," "access terminal," "mobile terminal," "wireless terminal," "remote terminal," "handset," "user agent," "mobile client," "client," etc. In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated. In some embodiments, data, information, etc., may be obtained with the user's consent. Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment. In the 5th generation mobile communication system (5G) new radio (NR), the PDSCH modulation scheme supports up to 1024QAM, and the PUSCH modulation scheme supports up to 256QAM. In some embodiments, the modulation and coding scheme (MCS) table for PDSCH transmission applications includes Tables 1 to 4 below. Table 1 is the MCS table for 64QAM (MCS_64QAM). Table 2 is the MCS table for 256QAM (MCS_256QAM). Table 3 is the MCS table for Ultra-Reliable Low-Latency Communications (URLLC) (MCS_URLLC). Table 4 is the MCS table for 1024QAM (MCS_1024QAM). Table 1 Table 2 Table 3 Table 4 This disclosure uses Table 1 as an example to illustrate what each column represents; the same applies to other tables. As shown in Table 1, the first column is the Modulation-Coding Scheme Index (MCS Index), which can be abbreviated as I. MCS The index ranges from 0 to 31, meaning there are 32 modulation / decoding schemes in total. The second column represents the modulation order, which can be abbreviated as Q. m The third column represents the target code rate multiplied by 1024. The target code rate can be abbreviated as R, and x is the multiplication sign. The third column indicates the product of the target code rate and 1024; that is, the ratio of the value in the third column to 1024. For example, R x

[1024] If the value is 120, then R is the ratio of 120 to 1024 (120 / 1024). The fourth column is spectral efficiency, which refers to the number of bits that can be transmitted per unit bandwidth per second. A modulation / decoding scheme corresponds to a modulation order, a target code rate, and a spectral efficiency. A higher modulation order generally means a larger number of bits per symbol, i.e., more information can be transmitted. A higher target code rate results in more effective bits and less redundant information, allowing for the transmission of more information, but also lower interference resistance. A lower target code rate results in fewer effective bits and more redundant information. This redundant information can be used for error correction, improving interference resistance and ensuring data transmission reliability. Spectral efficiency may be affected by the preceding factors. In some embodiments, the MCS tables for PUSCH transmission applications, for Cyclic Prefix Orthogonal Frequency Division Multiplexing (CP-OFDM) waveforms, may include three tables: MCS_64QAM, MCS_256QAM, and MCS_URLLC, as shown in Tables 1 to 3 above. For Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) waveforms, they may include MCS_256QAM (Table 2 above), as well as the redefined MCS_64QAM and MCS_256QAM, as shown in Tables 5 and 6 below. Table 5 In Table 5, q represents a non-fixed value. For example, when q is 1, it corresponds to the modulation scheme π / 2-BPSK, where π is the mathematical constant pi, with a value conventionally agreed to be 3.14. π / 2 is half of π. π / 2-BPSK is a phase modulation scheme, an extension of BPSK modulation. In π / 2-BPSK, the phase change of the signal is achieved by introducing a phase shift of π / 2 between each symbol. When q is 2, it corresponds to the modulation scheme QPSK. The meanings of the other columns are as shown in Table 1, and will not be repeated in this disclosure. Table 6 In Table 6, the value of q is 1 or 2. For details, please refer to the description of Table 5 above, and this disclosure will not repeat them here. In some embodiments, for downlink modulation, the correspondence between modulation scheme and modulation order can be referred to in Table 7 below. Table 7 In Table 7, the modulation order corresponding to QPSK is 2. For example, if the downlink transmission uses the modulation and coding scheme determined as shown in Table 4 above,... Assuming the network device is the I indicated by the terminal MCS =0, I MCS The corresponding modulation order is 2. Referring to Table 7, the modulation method can be determined to be QPSK. Accordingly, the modulation order corresponding to 16QAM is 4. The modulation order corresponding to 64QAM is 6. The modulation order corresponding to 256QAM is 8. In some embodiments, the correspondence between the modulation scheme and the modulation order for uplink modulation can be referred to in Table 8 below. Table 8 Table 8 includes the correspondence between modulation scheme and modulation order for CP-OFDM waveforms, as well as the correspondence between modulation scheme and modulation order for DFT-s-OFDM waveforms. With the development of 6G mobile communication systems, peak data rates of 100-1000 gigabits per second (Gbit / s) are required to support higher-speed services. Therefore, among various technologies for enhancing transmission rates, this disclosure utilizes a higher-order modulation scheme. For downlink transmission, using a higher-order modulation scheme... This disclosure provides a communication method that determines a first modulation and coding scheme from a first set of modulation and coding schemes. The first modulation and coding scheme is obtained by adding to and / or deleting from a second set of modulation and coding schemes, where the second set of modulation and coding schemes is a set of modulation and coding schemes specified in a protocol, and does not include modulation and coding schemes with a modulation order of 12. This enables the use of higher-order modulation schemes to increase transmission rates, and can accommodate different service requirements, such as Extended Reality (XR) services. Figure 1 is a schematic diagram of a communication system architecture according to an embodiment of the present disclosure. As shown in Figure 1, the communication system 100 includes a terminal 101 and a network device 102. In some embodiments, terminal 101 includes, but is not limited to, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home. In some embodiments, network device 102 may include at least one of access network device and core network device. In some embodiments, the access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include, but is not limited to, at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system. In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs. In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility. In some embodiments, a core network device can be a single device comprising one or more network elements, or it can be multiple devices or a group of devices, each comprising all or part of the aforementioned one or more network elements. Network elements can be virtual or physical. (Core network example) Such as including at least one of the Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC). It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems. The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1 are illustrative. The communication system may include all or some of the main bodies in FIG1, or may include other main bodies outside of FIG1. ​​The number and form of each main body are arbitrary. Each main body may be physical or virtual. The connection relationship between the main bodies is illustrative. The main bodies may not be connected or may be connected. The connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection. The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 6th generation mobile communication system (6G), 5G New Radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New Radio Access (NX), Future Generation Radio Access (FX), Global System for Mobile Communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G). Figure 2 is a schematic diagram of a communication method interaction according to an embodiment of the present disclosure. As shown in Figure 2, this embodiment of the present disclosure relates to a communication method for a communication system 100, the method including: In step S2101, network device 102 determines the first modulation and coding scheme from the first modulation and coding scheme set. In some embodiments, network device 102 may determine a first modulation and coding scheme from a first set of modulation and coding schemes for use in modulating, encoding, or decoding data during transmission. For example, network device may determine the first modulation and coding scheme based on channel conditions and indicate the index of the first modulation and coding scheme in the first set of modulation and coding schemes to the terminal. In some embodiments, the first modulation and coding scheme set is obtained by adding and / or deleting modulation and coding schemes from the second modulation and coding scheme set. The second modulation and coding scheme set is the set of modulation and coding schemes specified in the protocol, and does not include modulation and coding schemes with a modulation order of 12. For example, the second modulation and coding scheme set can be in tabular form, and may include at least one of Tables 1 to 4 mentioned above. The first modulation and coding scheme set can be obtained by deleting some entries from Tables 1 to 4, retaining others, and adding some entries to obtain a new table, which is the first modulation and coding scheme set. Determining the first modulation and coding scheme from the first modulation and coding scheme set can be applicable to terminals that support uplink transmission with a maximum modulation order of 12. For example, if the terminal connected to the network device supports uplink transmission with a maximum modulation order of 12, the network device can determine the first modulation and coding scheme from the first modulation and coding scheme set and instruct it to the terminal. Of course, this disclosure is only an example and is not limited thereto. For example, in some cases, the first modulation and coding scheme set can also be used for terminals that support uplink transmission with a maximum modulation order of 10. In some embodiments, the first modulation and coding scheme set includes multiple modulation and coding schemes, and the multiple modulation and coding schemes include at least one modulation and coding scheme with a modulation order of 12. In some embodiments, a modulation order of 12 can correspond to a 4096QAM modulation scheme, but is not limited thereto. In some embodiments, the first set of modulation and coding schemes includes a first number of modulation and coding schemes and a second number of modulation and coding schemes. The first number of modulation and coding schemes are obtained by adding and / or deleting modulation and coding schemes from the second set, and the second number of modulation and coding schemes are determined based on the type of modulation order. The code rate and spectral efficiency corresponding to the first number of modulation and coding schemes are actual values, or it can be stated that the first number of modulation and coding schemes have corresponding code rates and spectral efficiencies. The code rate and spectral efficiency corresponding to the second number of modulation and coding schemes are null values, or it can be stated that the second number of modulation and coding schemes have no corresponding code rates and spectral efficiencies. If the first set of modulation and coding schemes is in tabular form, the code rate and spectral efficiency corresponding to the second number of modulation and coding schemes can also be referred to as reserved bits in the table. In some embodiments, the first number of modulation and coding schemes includes at least one of the following: two modulation and coding schemes with a modulation order of 2 obtained by reducing the modulation and coding schemes in the second modulation and coding scheme set; and two modulation and coding schemes with a modulation order of 2 obtained by reducing the modulation and coding schemes in the second modulation and coding scheme set. By removing modulation and coding schemes from the first set, three modulation and coding schemes with a modulation order of 4 are obtained; by removing modulation and coding schemes from the second set, seven modulation and coding schemes with a modulation order of 6 are obtained; by removing modulation and coding schemes from the second set, six modulation and coding schemes with a modulation order of 8 are obtained; by removing modulation and coding schemes from the second set, four modulation and coding schemes with a modulation order of 10 are obtained; and by adding modulation and coding schemes to the second set, four modulation and coding schemes with a modulation order of 12 are obtained. In some embodiments, Table 4 can be modified by deletion and / or addition to obtain the first set of modulation and coding schemes. For example, for modulation and coding schemes with a modulation order of 2, one entry with intermediate spectral efficiency can be deleted, such as #1 in Table 4, while #0 and #2 are retained. Here, # represents an index, and #1 means index 1. For modulation and coding schemes with a modulation order of 4, all entries can be retained, i.e., all modulation and coding schemes with a modulation order of 4 in Table 4 are retained. For modulation and coding schemes with a modulation order of 6, two entries with low spectral efficiency can be deleted, such as #7 and #9 in Table 4, while the remaining 7 are retained. For modulation and coding schemes with a modulation order of 8, two entries with low spectral efficiency can be deleted, such as #16 and #19 in Table 4, while the remaining 6 are retained. For modulation and coding schemes with a modulation order of 10, all entries can be retained, i.e., all modulation and coding schemes with a modulation order of 10 in Table 4 are retained. Four entries with a modulation order of 12 can be added to Table 4. In some embodiments, each modulation and coding scheme in the first set of modulation and coding schemes corresponds to an index and a spectral efficiency. The first set of modulation and coding schemes includes multiple modulation and coding schemes with a modulation order of 12. Among the multiple modulation and coding schemes with a modulation order of 12, the spectral efficiencies corresponding to every two adjacent indices have the same difference. For example, for modulation and coding schemes retained from the second set of modulation and coding schemes, their corresponding modulation order, code rate, and spectral efficiency are determined. However, for newly added modulation and coding schemes, their corresponding modulation order, code rate, and spectral efficiency need to be designed. For example, the spectral efficiency difference between every two adjacent indices of the added modulation and coding schemes can be set to be the same, thereby determining the spectral efficiency corresponding to each added modulation and coding scheme, and then obtaining the corresponding code rate based on the designed modulation order. For example, in the newly added modulation and coding scheme, a modulation and coding scheme with a modulation order of A1, a code rate of B1, and a spectral efficiency of C1 can be designed. Here, A1 can be 12, B1 can be the maximum code rate in the second set of modulation and coding schemes, and C1 can be calculated based on A1 and B1. The spectral efficiency difference is determined based on C1 and the spectral efficiency C2 corresponding to the last modulation and coding scheme retained in the second set of modulation and coding schemes. For example, if four modulation and coding schemes with a modulation order of 12 are added, the spectral efficiency of the last modulation and coding scheme is C1, and the spectral efficiency difference P = (C1 - C2) / 4. The spectral efficiencies corresponding to the four modulation and coding schemes with a modulation order of 12 are: C2 + P, C2 + 2 * P, C2 + 3 * P, and C1. C1 = C2 + 4 * P. Where * represents multiplication and / represents division. Then, based on the modulation order of 12, the code rate corresponding to each of the four modulation and coding schemes is calculated. In some embodiments, each modulation and coding scheme in the first modulation and coding scheme set corresponds to a code rate, the code rate ranges from N-0.5 to N+0.5, the code rate accuracy is at the level of 0.001 or 0.0001, and N is determined based on the modulation order and spectral efficiency corresponding to the modulation and coding scheme. In some embodiments, the first modulation and coding scheme set includes at least one of the following modulation and coding schemes: A modulation and coding scheme with a modulation order of 2, a code rate ratio of 120 to 1024, and a spectral efficiency of 0.2344; A modulation coding scheme with a modulation order of 2, a code rate of 449 to 1024, and a spectral efficiency of 0.8770; A modulation coding scheme with a modulation order of 4, a code rate of 378 to 1024, and a spectral efficiency of 1.4766; A modulation coding scheme with a modulation order of 4, a code rate of 490 to 1024, and a spectral efficiency of 1.9141; A modulation and coding scheme with a modulation order of 4, a code rate of 616 to 1024, and a spectral efficiency of 2.4063; A modulation coding scheme with a modulation order of 6, a code rate ratio of 466 to 1024, and a spectral efficiency of 2.7305; A modulation coding scheme with a modulation order of 6, a code rate ratio of 567 to 1024, and a spectral efficiency of 3.3223; A modulation and coding scheme with a modulation order of 6, a code rate of 666 to 1024, and a spectral efficiency of 3.9023; A modulation and coding scheme with a modulation order of 6, a code rate of 719 to 1024, and a spectral efficiency of 4.2129; A modulation and coding scheme with a modulation order of 6, a code rate of 772 to 1024, and a spectral efficiency of 4.5234; A modulation and coding scheme with a modulation order of 6, a code rate of 822 to 1024, and a spectral efficiency of 4.8164; A modulation and coding scheme with a modulation order of 6, a code rate ratio of 873 to 1024, and a spectral efficiency of 5.1152; A modulation and coding scheme with a modulation order of 8, a code rate of 682.5 to 1024, and a spectral efficiency of 5.3320; A modulation coding scheme with a modulation order of 8, a code rate ratio of 754 to 1024, and a spectral efficiency of 5.8906; A modulation and coding scheme with a modulation order of 8, a code rate of 797 to 1024, and a spectral efficiency of 6.2266; A modulation and coding scheme with a modulation order of 8, a code rate of 885 to 1024, and a spectral efficiency of 6.9141; A modulation and coding scheme with a modulation order of 8, a code rate of 916.5 to 1024, and a spectral efficiency of 7.1602; A modulation coding scheme with a modulation order of 8, a code rate ratio of 948 to 1024, and a spectral efficiency of 7.4063; A modulation and coding scheme with a modulation order of 10, a code rate of 805.5 to 1024, and a spectral efficiency of 7.8662; A modulation coding scheme with a modulation order of 10, a code rate ratio of 853 to 1024, and a spectral efficiency of 8.3301; A modulation coding scheme with a modulation order of 10, a code rate ratio of 900.5 to 1024, and a spectral efficiency of 8.7939; A modulation and coding scheme with a modulation order of 10, a code rate ratio of 948 to 1024, and a spectral efficiency of 9.2578; A modulation coding scheme with a modulation order of 12, a code rate of 829.5 to 1024, and a spectral efficiency of 9.7207; A modulation and coding scheme with a modulation order of 12, a code rate of 869 to 1024, and a spectral efficiency of 10.1836; A modulation and coding scheme with a modulation order of 12, a code rate ratio of 908.5 to 1024, and a spectral efficiency of 10.6465; A modulation coding scheme with a modulation order of 12, a code rate ratio of 948 to 1024, and a spectral efficiency of 11.1093; A modulation and coding scheme with a modulation order of 2 and null values ​​for code rate and spectral efficiency; A modulation and coding scheme with a modulation order of 4 and null values ​​for code rate and spectral efficiency; A modulation and coding scheme with a modulation order of 6 and null values ​​for code rate and spectral efficiency; A modulation coding scheme with a modulation order of 8 and null values ​​for code rate and spectral efficiency; A modulation and coding scheme with a modulation order of 10 and null values ​​for code rate and spectral efficiency; A modulation coding scheme with a modulation order of 12 and null values ​​for code rate and spectral efficiency. In some embodiments, the result of reducing or adding to the first modulation and coding scheme set based on the second modulation and coding scheme set can be shown in Table 9. Table 9 In Table 9, numbers with a horizontal bar above them indicate that they are deleted. For example, in the third row of Table 9, the row with index 1 and a horizontal bar above it indicates that it is a modulation and coding scheme from the second set of modulation and coding schemes, and has been deleted and is not included in the first set of modulation and coding schemes. In other words, this modulation and coding scheme is a modulation and coding scheme from the second set of modulation and coding schemes, but not from the first set. The same applies to other items with horizontal bars. The details are not listed here. The meanings of each column in Table 9 can be found in Table 1. In some embodiments, the first set of modulation and coding schemes may be in tabular form, as shown in Table 10. Table 10 In some embodiments, a modulation order of 2 can correspond to QPSK, but is not limited to this; it can also correspond to other modulation schemes. Correspondingly, a modulation order of 4 can correspond to 16QAM, but is not limited to this; it can also correspond to other modulation schemes. Correspondingly, a modulation order of 6 can correspond to 64QAM, but is not limited to this; it can also correspond to other modulation schemes. Correspondingly, a modulation order of 8 can correspond to 256QAM, but is not limited to this; it can also correspond to other modulation schemes. Correspondingly, a modulation order of 10 can correspond to 1024QAM, but is not limited to this; it can also correspond to other modulation schemes. Correspondingly, a modulation order of 12 can correspond to 4096QAM, but is not limited to this; it can also correspond to other modulation schemes. In some embodiments, the highest modulation order supported by the terminal for downlink transmission is 10 or 12, and the first modulation and coding scheme is used to receive the Physical Downlink Shared Channel (PDSCH). For example, when the highest modulation order supported by the terminal for downlink transmission is 10 or 12, the network device can determine the first modulation and coding scheme from the first modulation and coding scheme set, which can be Table 10 above. In some embodiments, the first modulation and coding scheme set includes a first number of modulation and coding schemes, which are obtained by adding and / or deleting modulation and coding schemes in the second modulation and coding scheme set. The first number of modulation and coding schemes includes at least one of the following: three modulation and coding schemes with a modulation order of 2 obtained by deleting modulation and coding schemes in the second modulation and coding scheme set; three modulation and coding schemes with a modulation order of 4 obtained by deleting modulation and coding schemes in the second modulation and coding scheme set; seven modulation and coding schemes with a modulation order of 6 obtained by deleting modulation and coding schemes in the second modulation and coding scheme set; six modulation and coding schemes with a modulation order of 8 obtained by deleting modulation and coding schemes in the second modulation and coding scheme set; four modulation and coding schemes with a modulation order of 10 obtained by deleting modulation and coding schemes in the second modulation and coding scheme set; and three modulation and coding schemes with a modulation order of 12 obtained by adding modulation and coding schemes in the second modulation and coding scheme set. In some embodiments, Table 4 can be modified by deletion and / or addition to obtain a first set of modulation and coding schemes. Example For example, for modulation coding schemes with a modulation order of 2, all entries are retained, meaning all modulation coding schemes with a modulation order of 2 in Table 4 are retained. For modulation coding schemes with a modulation order of 4, all entries can be retained, meaning all modulation coding schemes with a modulation order of 4 in Table 4 are retained. For modulation coding schemes with a modulation order of 6, two entries with low spectral efficiency can be deleted, such as #7 and #9 in Table 4, and the remaining 7 can be retained. For modulation coding schemes with a modulation order of 8, two entries with low spectral efficiency can be deleted, such as #16 and #19 in Table 4, and the remaining 6 can be retained. For modulation coding schemes with a modulation order of 10, all entries can be retained, meaning all modulation coding schemes with a modulation order of 10 in Table 4 can be retained. Three entries with a modulation order of 12 can be added to Table 4. In some embodiments, each modulation and coding scheme in the first set of modulation and coding schemes corresponds to an index and a spectral efficiency. The first set of modulation and coding schemes includes multiple modulation and coding schemes with a modulation order of 12. Among the multiple modulation and coding schemes with a modulation order of 12, the spectral efficiencies corresponding to every two adjacent indices have the same difference. For example, for modulation and coding schemes retained from the second set of modulation and coding schemes, their corresponding modulation order, code rate, and spectral efficiency are determined. However, for newly added modulation and coding schemes, their corresponding modulation order, code rate, and spectral efficiency need to be designed. For example, the spectral efficiency difference between every two adjacent indices of the added modulation and coding schemes can be set to be the same, thereby determining the spectral efficiency corresponding to each added modulation and coding scheme, and then obtaining the corresponding code rate based on the designed modulation order. For example, in the newly added modulation and coding scheme, a modulation and coding scheme with a modulation order of A1, a code rate of B1, and a spectral efficiency of C1 can be designed. Here, A1 can be 12, B1 can be the maximum code rate in the second set of modulation and coding schemes, and C1 can be calculated based on A1 and B1. The spectral efficiency difference is determined based on C1 and the spectral efficiency C2 corresponding to the last modulation and coding scheme retained in the second set of modulation and coding schemes. For example, if three modulation and coding schemes with a modulation order of 12 are added, the spectral efficiency of the last modulation and coding scheme is C1, and the spectral efficiency difference P = (C1 - C2) / 3. The spectral efficiencies corresponding to the four modulation and coding schemes with a modulation order of 12 are C2 + P, C2 + 2 * P, and C1, respectively. C1 = C2 + 3 * P. Where * represents multiplication and / represents division. Then, based on the modulation order of 12, the code rate corresponding to the three modulation and coding schemes is calculated respectively. In some embodiments, each modulation and coding scheme in the first modulation and coding scheme set corresponds to a code rate, the code rate ranges from N-0.5 to N+0.5, the code rate accuracy is at the level of 0.001 or 0.0001, and N is determined based on the modulation order and spectral efficiency corresponding to the modulation and coding scheme. In some embodiments, the first modulation and coding scheme set includes at least one of the following modulation and coding schemes: A modulation and coding scheme with a modulation order of 2, a code rate ratio of 120 to 1024, and a spectral efficiency of 0.2344; A modulation coding scheme with a modulation order of 2, a code rate of 193 to 1024, and a spectral efficiency of 0.3770; A modulation coding scheme with a modulation order of 2, a code rate of 449 to 1024, and a spectral efficiency of 0.8770; A modulation coding scheme with a modulation order of 4, a code rate of 378 to 1024, and a spectral efficiency of 1.4766; A modulation coding scheme with a modulation order of 4, a code rate of 490 to 1024, and a spectral efficiency of 1.9141; A modulation and coding scheme with a modulation order of 4, a code rate of 616 to 1024, and a spectral efficiency of 2.4063; A modulation coding scheme with a modulation order of 6, a code rate ratio of 466 to 1024, and a spectral efficiency of 2.7305; A modulation coding scheme with a modulation order of 6, a code rate ratio of 567 to 1024, and a spectral efficiency of 3.3223; A modulation and coding scheme with a modulation order of 6, a code rate of 666 to 1024, and a spectral efficiency of 3.9023; A modulation and coding scheme with a modulation order of 6, a code rate of 719 to 1024, and a spectral efficiency of 4.2129; A modulation and coding scheme with a modulation order of 6, a code rate of 772 to 1024, and a spectral efficiency of 4.5234; A modulation and coding scheme with a modulation order of 6, a code rate of 822 to 1024, and a spectral efficiency of 4.8164; A modulation and coding scheme with a modulation order of 6, a code rate ratio of 873 to 1024, and a spectral efficiency of 5.1152; A modulation and coding scheme with a modulation order of 8, a code rate of 682.5 to 1024, and a spectral efficiency of 5.3320; A modulation coding scheme with a modulation order of 8, a code rate ratio of 754 to 1024, and a spectral efficiency of 5.8906; A modulation and coding scheme with a modulation order of 8, a code rate of 797 to 1024, and a spectral efficiency of 6.2266; A modulation and coding scheme with a modulation order of 8, a code rate of 885 to 1024, and a spectral efficiency of 6.9141; A modulation and coding scheme with a modulation order of 8, a code rate of 916.5 to 1024, and a spectral efficiency of 7.1602; A modulation coding scheme with a modulation order of 8, a code rate ratio of 948 to 1024, and a spectral efficiency of 7.4063; A modulation and coding scheme with a modulation order of 10, a code rate of 805.5 to 1024, and a spectral efficiency of 7.8662; A modulation coding scheme with a modulation order of 10, a code rate ratio of 853 to 1024, and a spectral efficiency of 8.3301; A modulation coding scheme with a modulation order of 10, a code rate ratio of 900.5 to 1024, and a spectral efficiency of 8.7939; A modulation and coding scheme with a modulation order of 10, a code rate ratio of 948 to 1024, and a spectral efficiency of 9.2578; A modulation coding scheme with a modulation order of 12, a code rate of 840.5 to 1024, or a code rate of 843 to 1024, and a spectral efficiency of 9.8750. A modulation and coding scheme with a modulation order of 12, a code rate of 895 to 1024, and a spectral efficiency of 10.4922; A modulation coding scheme with a modulation order of 12, a code rate ratio of 948 to 1024, and a spectral efficiency of 11.1093 or 11.1094; A modulation and coding scheme with a modulation order of 2 and null values ​​for code rate and spectral efficiency; A modulation and coding scheme with a modulation order of 4 and null values ​​for code rate and spectral efficiency; A modulation and coding scheme with a modulation order of 6 and null values ​​for code rate and spectral efficiency; A modulation coding scheme with a modulation order of 8 and null values ​​for code rate and spectral efficiency; A modulation and coding scheme with a modulation order of 10 and null values ​​for code rate and spectral efficiency; A modulation coding scheme with a modulation order of 12 and null values ​​for code rate and spectral efficiency. In some embodiments, the result of reducing or adding to the first modulation and coding scheme set based on the second modulation and coding scheme set can be shown in Table 11. Table 11 In Table 11, numbers with a horizontal bar above them indicate that they are deleted. For a detailed explanation, please refer to the explanation in Table 9. This disclosure will not repeat it here. In some embodiments, the first set of modulation and coding schemes may be in tabular form, as shown in Table 12. Table 12 In some embodiments, a modulation order of 2 can correspond to QPSK, but is not limited to this; it can also correspond to other modulation schemes. Correspondingly, a modulation order of 4 can correspond to 16QAM, but is not limited to this; it can also correspond to other modulation schemes. Correspondingly, a modulation order of 6 can correspond to 64QAM, but is not limited to this; it can also correspond to other modulation schemes. Correspondingly, a modulation order of 8 can correspond to 256QAM, but is not limited to this; it can also correspond to other modulation schemes. Correspondingly, a modulation order of 10 can correspond to 1024QAM, but is not limited to this; it can also correspond to other modulation schemes. Correspondingly, a modulation order of 12 can correspond to 4096QAM, but is not limited to this; it can also correspond to other modulation schemes. In some embodiments, the highest modulation order supported by the terminal for downlink transmission is 12, and the first modulation and coding scheme is used to receive the Physical Downlink Shared Channel (PDSCH). For example, when the highest modulation order supported by the terminal for downlink transmission is 12, the network device can determine the first modulation and coding scheme from the first modulation and coding scheme set, which can be the set of modulation and coding schemes described in Table 12 above. In step S2102, network device 102 sends first information to terminal 101. In some embodiments, terminal 101 receives first information sent by network device 102. In some embodiments, the first information is used to indicate the first modulation and coding scheme determined by the network device from the first set of modulation and coding schemes. After receiving the first information, the terminal can also determine the first modulation and coding scheme from the first set of modulation and coding schemes based on the first information. For example, the first information can be an index; the network device can indicate the index of the first modulation and coding scheme to the terminal, and the terminal can determine the first modulation and coding scheme from the first set of modulation and coding schemes based on the index. The first set of modulation and coding schemes can be pre-configured to the terminal by the network device, predefined between the terminal and the network device, or specified in a protocol. In step S2103, terminal 101 determines the first modulation and coding scheme from the first modulation and coding scheme set. In some embodiments, the terminal can determine the first modulation and coding scheme from the first set of modulation and coding schemes based on first information sent by the network device. For example, the first information may be an index, and the network device may indicate the index of the first modulation and coding scheme to the terminal, allowing the terminal to determine the first modulation and coding scheme from the first set of modulation and coding schemes based on the index. The first set of modulation and coding schemes may be pre-configured to the terminal by the network device, pre-defined between the terminal and the network device, or specified in a protocol. The communication method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2103. For example, step S2101 may be implemented as a standalone embodiment, but is not limited thereto. In some embodiments, steps S2102 and S2103 are optional, and one or more of these steps may be omitted or substituted in different embodiments. In some embodiments, other optional implementations described before or after the specification corresponding to FIG2 may be referred to. Figure 3 is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3, the embodiments of the present disclosure relate to a communication method. Executed by terminal 101, the above method includes: Step S3101: Obtain the first information. The optional implementation of step S3101 can be found in the optional implementation of step S2102 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here. In some embodiments, terminal 101 receives first information sent by network device 102, but is not limited thereto, and may also receive first information sent by other entities. In some embodiments, terminal 101 obtains first information as defined by the protocol. In some embodiments, terminal 101 obtains first information from upper layer(s). In some embodiments, the terminal 101 processes the information to obtain the first information. In some embodiments, step S3101 is omitted, and the terminal 101 autonomously implements the function indicated by the first information, or the above function is default or default. Step S3102: Determine the first modulation and coding scheme from the first modulation and coding scheme set. The optional implementation of step S3102 can be found in the optional implementation of step S2103 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here. Figure 4 is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 4, this embodiment of the present disclosure relates to a communication method executed by a network device 102, the method comprising: Step S4101: Determine the first modulation and coding scheme from the first modulation and coding scheme set. The optional implementation of step S4101 can be found in the optional implementation of step S2101 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here. Step S4102: Send the first message. The optional implementation of step S4102 can be found in the optional implementation of step S2102 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here. In some embodiments, network device 102 sends first information to terminal 101, but is not limited thereto; it may send first information to other entities. Figure 5 is a schematic diagram illustrating the communication method interaction according to an embodiment of the present disclosure. As shown in Figure 5, the embodiments of the present disclosure relate to a communication method, which includes: Step S5101: The network device determines the first modulation and coding scheme from the first modulation and coding scheme set. In step S5102, the network device sends the first information to the terminal. In some embodiments, the first information is used to indicate a first modulation and coding scheme. Step S5103: The terminal determines the first modulation and coding scheme from the first modulation and coding scheme set based on the first information. In some embodiments, the above methods may include the methods of the embodiments related to the communication system 100, terminal 101, and network device 102, which will not be described again here. This disclosure provides a method for configuring MCS tables, as follows: In some embodiments, the downlink MCS table design 1 does not increase the number of new MCS tables. It updates the existing table 4, which supports up to 1024QAM, to support PDSCH modulation schemes up to 4096QAM. In some embodiments, terminals that support up to 1024QAM / 4096QAM all use the same table. In some embodiments, the 5-bit DCI MCS indication still corresponds to the definition of 32 entries. In some embodiments, the supported modulation schemes are: QPSK / 16QAM / 64QAM / 256QAM / 1024QAM / 4096QAM. In some embodiments, the corresponding table definition is as follows: For QPSK: retain 2 entries and remove 1 entry of the low-order modulation intermediate SE, such as #1; For 16QAM: retain 3 entries; For 64QAM: retain 6 entries. For example, remove 2 entries with low SE, #7 and #9; For 256QAM: retain 6 entries. For example, remove 2 entries with low SE, #16 and #19; For 1024QAM: retain 4 entries; For 4096QAM: Add 4 entries; Overall, it is necessary to add a reserved entry for 4096QAM. In some embodiments, for table definitions: 1) Each entry can correspond to an SE interval; 2) The table must contain at least one row from the table definition; 3) For SE, the precision is 0.001 or 0.0001; 4) The applicable range for each CR value N is: [N-0.5, N+0.5]; In some embodiments, the table may be Table 10 as described above. In some embodiments, downlink MCS table design 2: Defines a new table applied to terminals that support PDSCH modulation schemes up to 4096QAM. In some embodiments, the 5-bit DCI MCS indication still corresponds to the definition of 32 entries. In some embodiments, the supported modulation schemes are: QPSK / 16QAM / 64QAM / 256QAM / 1024QAM / 4096QAM. In some embodiments, the corresponding table definition is as follows: For QPSK: Keep 3 entries; For 16QAM: retain 3 entries; For 64QAM: retain 6 entries. For example, remove 2 entries with low SE, #7 and #9; For 256QAM: retain 6 entries. For example, remove 2 entries with low SE, #16 and #19; For 1024QAM: retain 4 entries; For 4096QAM: Add 3 entries to even out the SE interval; Overall, it is necessary to add a reserved entry for 4096QAM. In some embodiments, for table definitions: 1) Each entry can correspond to an SE interval; 2) The table must contain at least one row from the table definition; 3) For SE, the precision is 0.001 or 0.0001; 4) The applicable range for each CR value N is: [N-0.5, N+0.5]. In some embodiments, the table supports up to 4096 QAM. In some embodiments, the table may be Table 12 as described above. In some embodiments, the uplink design is applied only to CP-OFDM waveforms. No new MCS table number is added; the same downlink table design is applied. In some embodiments, a 5-bit MCS indicator is used. In some embodiments, the modulation schemes supported by the CP-OFDM waveform are: QPSK, or 16QAM, or 64QAM, or 256QAM, or 1024QAM, with new downlink tables introduced by the above methods, such as Table 10 and, or Table 12. In some embodiments, the modulation schemes supported by the CP-OFDM waveform are: QPSK, or 16QAM, or 64QAM, or 256QAM, or 1024QAM, or 4096QAM, and new downlink tables introduced by applying the above methods, such as Table 10 and, or Table 12. This disclosure also provides an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Alternatively, another apparatus is provided that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods. It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits. In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the processor loading instructions to achieve... The process of performing some or all of the functions of the above units or modules. In addition, it can also be hardware circuits designed for artificial intelligence, which can be understood as ASICs, such as Neural Network Processing Units (NPUs), Tensor Processing Units (TPUs), Deep Learning Processing Units (DPUs), etc. Figure 6a is a schematic diagram of the terminal structure proposed in an embodiment of this disclosure. As shown in Figure 6a, the terminal 6100 may include at least one of a processing module 6101 and a transceiver module 6102. The processing module 6101 is used to determine a first modulation and coding scheme from a first modulation and coding scheme set. The first modulation and coding scheme set is obtained by adding and / or deleting modulation and coding schemes from a second modulation and coding scheme set. The second modulation and coding scheme set is a set of modulation and coding schemes specified in a protocol, and the second modulation and coding scheme set does not include modulation and coding schemes with a modulation order of 12. In some embodiments, the first modulation and coding scheme set includes multiple modulation and coding schemes, and the multiple modulation and coding schemes include at least one modulation and coding scheme with a modulation order of 12. In some embodiments, the first modulation and coding scheme set includes a first number of modulation and coding schemes and a second number of modulation and coding schemes. The first number of modulation and coding schemes is obtained by adding and / or deleting modulation and coding schemes in the second set of modulation and coding schemes. The second number of modulation and coding schemes is determined based on the type of modulation order. The first number of modulation and coding schemes includes at least one of the following: two modulation and coding schemes with a modulation order of 2 obtained by deleting modulation and coding schemes in the second set of modulation and coding schemes; three modulation and coding schemes with a modulation order of 4 obtained by deleting modulation and coding schemes in the second set of modulation and coding schemes; seven modulation and coding schemes with a modulation order of 6 obtained by deleting modulation and coding schemes in the second set of modulation and coding schemes; six modulation and coding schemes with a modulation order of 8 obtained by deleting modulation and coding schemes in the second set of modulation and coding schemes; four modulation and coding schemes with a modulation order of 10 obtained by deleting modulation and coding schemes in the second set of modulation and coding schemes; and four modulation and coding schemes with a modulation order of 12 obtained by adding modulation and coding schemes in the second set of modulation and coding schemes. In some embodiments, the first set of modulation and coding schemes includes at least one of the following modulation and coding schemes: a modulation and coding scheme with a modulation order of 2, a code rate ratio of 120 to 1024, and a spectral efficiency of 0.2344; a modulation and coding scheme with a modulation order of 2, a code rate ratio of 449 to 1024, and a spectral efficiency of 0.8770; a modulation and coding scheme with a modulation order of 4, a code rate ratio of 378 to 1024, and a spectral efficiency of 1.4766; a modulation and coding scheme with a modulation order of 4, a code rate ratio of 490 to 1024, and a spectral efficiency of 1.9141; a modulation and coding scheme with a modulation order of 4, a code rate ratio of 616 to 1024, and a spectral efficiency of 2.4063; and a modulation and coding scheme with a modulation order of 6. The following modulation and coding schemes have the following spectral efficiency: a code rate ratio of 466 to 1024 with a spectral efficiency of 2.7305; a modulation order of 6 with a code rate ratio of 567 to 1024 with a spectral efficiency of 3.3223; a modulation order of 6 with a code rate ratio of 666 to 1024 with a spectral efficiency of 3.9023; a modulation order of 6 with a code rate ratio of 719 to 1024 with a spectral efficiency of 4.2129; a modulation order of 6 with a code rate ratio of 772 to 1024 with a spectral efficiency of 4.5234; a modulation order of 6 with a code rate ratio of 822 to 1024 with a spectral efficiency of 4.8164; and a modulation order of... 6. A modulation and coding scheme with a code rate ratio of 873 to 1024 and a spectral efficiency of 5.1152; a modulation and coding scheme with a modulation order of 8, a code rate ratio of 682.5 to 1024 and a spectral efficiency of 5.3320; a modulation and coding scheme with a modulation order of 8, a code rate ratio of 754 to 1024 and a spectral efficiency of 5.8906; a modulation and coding scheme with a modulation order of 8, a code rate ratio of 797 to 1024 and a spectral efficiency of 6.2266; a modulation and coding scheme with a modulation order of 8, a code rate ratio of 885 to 1024 and a spectral efficiency of 6.9141; a modulation and coding scheme with a modulation order of 8, a code rate ratio of 916.5 to 1024 and a spectral efficiency of 7.1602. The following modulation and coding schemes have the following spectral efficiencies: a modulation order of 8, a code rate ratio of 948 to 1024, and a spectral efficiency of 7.4063; a modulation order of 10, a code rate ratio of 805.5 to 1024, and a spectral efficiency of 7.8662; a modulation order of 10, a code rate ratio of 853 to 1024, and a spectral efficiency of 8.3301; a modulation order of 10, a code rate ratio of 900.5 to 1024, and a spectral efficiency of 8.7939; a modulation order of 10, a code rate ratio of 948 to 1024, and a spectral efficiency of 9.2578; and a modulation order of 12, a code rate ratio of 829.5 to 1024, and a spectral efficiency of 9.The modulation and coding schemes of 7207 include: a modulation order of 12, a code rate ratio of 869 to 1024, and a spectral efficiency of 10.1836; a modulation order of 12, a code rate ratio of 908.5 to 1024, and a spectral efficiency of 10.6465; a modulation order of 12, a code rate ratio of 948 to 1024, and a spectral efficiency of 11.1093; a modulation order of 2 with null values ​​for code rate and spectral efficiency; a modulation order of 4 with null values ​​for code rate and spectral efficiency; a modulation order of 6 with null values ​​for code rate and spectral efficiency; a modulation order of 8 with null values ​​for code rate and spectral efficiency; a modulation order of 10 with null values ​​for code rate and spectral efficiency; and a modulation order of 12 with null values ​​for code rate and spectral efficiency. In some embodiments, the highest modulation order supported by the terminal is 10 or 12. In some embodiments, the first modulation and coding scheme set includes a first number of modulation and coding schemes, which are obtained by adding and / or deleting modulation and coding schemes in the second modulation and coding scheme set. The first number of modulation and coding schemes includes at least one of the following: three modulation and coding schemes with a modulation order of 2 obtained by deleting modulation and coding schemes from the second modulation and coding scheme set; three modulation and coding schemes with a modulation order of 2 obtained by deleting modulation and coding schemes from the second modulation and coding scheme set. The second set of modulation and coding schemes has a modulation order of 4. By reducing the modulation and coding schemes in the second set of modulation and coding schemes, 7 modulation and coding schemes with a modulation order of 6 are obtained. By reducing the modulation and coding schemes in the second set of modulation and coding schemes, 6 modulation and coding schemes with a modulation order of 8 are obtained. By reducing the modulation and coding schemes in the second set of modulation and coding schemes, 4 modulation and coding schemes with a modulation order of 10 are obtained. By adding the modulation and coding schemes in the second set of modulation and coding schemes, 3 modulation and coding schemes with a modulation order of 12 are obtained. In some embodiments, the first set of modulation and coding schemes includes at least one of the following modulation and coding schemes: a modulation and coding scheme with a modulation order of 2, a code rate ratio of 120 to 1024, and a spectral efficiency of 0.2344; a modulation and coding scheme with a modulation order of 2, a code rate ratio of 193 to 1024, and a spectral efficiency of 0.3770; a modulation and coding scheme with a modulation order of 2, a code rate ratio of 449 to 1024, and a spectral efficiency of 0.8770; a modulation and coding scheme with a modulation order of 4, a code rate ratio of 378 to 1024, and a spectral efficiency of 1.4766; a modulation and coding scheme with a modulation order of 4, a code rate ratio of 490 to 1024, and a spectral efficiency of 1.9141; a modulation and coding scheme with a modulation order of 4... The following modulation and coding schemes have the following spectral efficiency: a code rate ratio of 616 to 1024 with a spectral efficiency of 2.4063; a modulation order of 6 with a code rate ratio of 466 to 1024 with a spectral efficiency of 2.7305; a modulation order of 6 with a code rate ratio of 567 to 1024 with a spectral efficiency of 3.3223; a modulation order of 6 with a code rate ratio of 666 to 1024 with a spectral efficiency of 3.9023; a modulation order of 6 with a code rate ratio of 719 to 1024 with a spectral efficiency of 4.2129; and a modulation order of 6 with a code rate ratio of 772 to 1024 with a spectral efficiency of 4.5234. The following modulation and coding schemes are listed: a modulation order of 6, a code rate ratio of 822 to 1024, and a spectral efficiency of 4.8164; a modulation order of 6, a code rate ratio of 873 to 1024, and a spectral efficiency of 5.1152; a modulation order of 8, a code rate ratio of 682.5 to 1024, and a spectral efficiency of 5.3320; a modulation order of 8, a code rate ratio of 754 to 1024, and a spectral efficiency of 5.8906; a modulation order of 8, a code rate ratio of 797 to 1024, and a spectral efficiency of 6.2266; and a modulation order of 8, a code rate ratio of 885 to 1024, and a spectral efficiency of 6.9141. The following modulation and coding schemes have the following spectral efficiencies: a modulation order of 8, a code rate ratio of 916.5 to 1024, and a spectral efficiency of 7.1602; a modulation order of 8, a code rate ratio of 948 to 1024, and a spectral efficiency of 7.4063; a modulation order of 10, a code rate ratio of 805.5 to 1024, and a spectral efficiency of 7.8662; a modulation order of 10, a code rate ratio of 853 to 1024, and a spectral efficiency of 8.3301; a modulation order of 10, a code rate ratio of 900.5 to 1024, and a spectral efficiency of 8.7939; and a modulation order of 10, a code rate ratio of 948 to 1024, and a spectral efficiency of 9.The modulation and coding schemes are as follows: 2578; modulation order 12, code rate ratio of 840.5 to 1024, or 843 to 1024, with a spectral efficiency of 9.8750; modulation order 12, code rate ratio of 895 to 1024, with a spectral efficiency of 10.4922; modulation order 12, code rate ratio of 948 to 1024, with a spectral efficiency of 11.1093 or 11.1094. Modulation coding schemes are categorized as follows: modulation order 2, with null values ​​for code rate and spectral efficiency; modulation order 4, with null values ​​for code rate and spectral efficiency; modulation order 6, with null values ​​for code rate and spectral efficiency; modulation order 8, with null values ​​for code rate and spectral efficiency; modulation order 10, with null values ​​for code rate and spectral efficiency; and modulation order 12, with null values ​​for code rate and spectral efficiency. In some embodiments, the highest modulation order supported by the terminal for downlink transmission is 12, and the first modulation and coding scheme is used to receive the Physical Downlink Shared Channel (PDSCH). In some embodiments, each modulation and coding scheme in the first modulation and coding scheme set corresponds to an index and a spectral efficiency. The first modulation and coding scheme set includes multiple modulation and coding schemes with a modulation order of 12. Among the multiple modulation and coding schemes with a modulation order of 12, the spectral efficiencies corresponding to every two adjacent modulation and coding schemes have the same difference. In some embodiments, each modulation and coding scheme in the first modulation and coding scheme set corresponds to a code rate, the code rate ranges from N-0.5 to N+0.5, the code rate accuracy is at the level of 0.001 or 0.0001, and N is determined based on the modulation order and spectral efficiency corresponding to the modulation and coding scheme. Figure 6b is a schematic diagram of the network device proposed in an embodiment of this disclosure. As shown in Figure 6b, the network device 6200 may include at least one of a processing module 6201 and a transceiver module 6202. The processing module 6201 is used to determine a first modulation and coding scheme from a first set of modulation and coding schemes. The first set of modulation and coding schemes is obtained by adding and / or deleting modulation and coding schemes from a second set of modulation and coding schemes. The second set of modulation and coding schemes is a set of modulation and coding schemes specified in a protocol, and does not include modulation and coding schemes with a modulation order of 12. In some embodiments, the first modulation and coding scheme set includes multiple modulation and coding schemes, and the multiple modulation and coding schemes include at least one modulation and coding scheme with a modulation order of 12. In some embodiments, the first modulation and coding scheme set includes a first number of modulation and coding schemes and a second number of modulation and coding schemes. The first number of modulation and coding schemes is obtained by adding and / or deleting modulation and coding schemes in the second set of modulation and coding schemes. The second number of modulation and coding schemes is determined based on the type of modulation order. The first number of modulation and coding schemes includes at least one of the following: two modulation and coding schemes with a modulation order of 2 obtained by deleting modulation and coding schemes in the second set of modulation and coding schemes; or three modulation and coding schemes with a modulation order of 4 obtained by deleting modulation and coding schemes in the second set of modulation and coding schemes. Modulation coding schemes: By reducing the modulation coding schemes in the second modulation coding scheme set, 7 modulation coding schemes with a modulation order of 6 are obtained; by reducing the modulation coding schemes in the second modulation coding scheme set, 6 modulation coding schemes with a modulation order of 8 are obtained; by reducing the modulation coding schemes in the second modulation coding scheme set, 4 modulation coding schemes with a modulation order of 10 are obtained; by adding modulation coding schemes in the second modulation coding scheme set, 4 modulation coding schemes with a modulation order of 12 are obtained. In some embodiments, the first set of modulation and coding schemes includes at least one of the following modulation and coding schemes: a modulation and coding scheme with a modulation order of 2, a code rate ratio of 120 to 1024, and a spectral efficiency of 0.2344; a modulation and coding scheme with a modulation order of 2, a code rate ratio of 449 to 1024, and a spectral efficiency of 0.8770; a modulation and coding scheme with a modulation order of 4, a code rate ratio of 378 to 1024, and a spectral efficiency of 1.4766; a modulation and coding scheme with a modulation order of 4, a code rate ratio of 490 to 1024, and a spectral efficiency of 1.9141; a modulation and coding scheme with a modulation order of 4, a code rate ratio of 616 to 1024, and a spectral efficiency of 2.4063; and a modulation and coding scheme with a modulation order of 6. The following modulation and coding schemes have the following spectral efficiency: a code rate ratio of 466 to 1024 with a spectral efficiency of 2.7305; a modulation order of 6 with a code rate ratio of 567 to 1024 with a spectral efficiency of 3.3223; a modulation order of 6 with a code rate ratio of 666 to 1024 with a spectral efficiency of 3.9023; a modulation order of 6 with a code rate ratio of 719 to 1024 with a spectral efficiency of 4.2129; a modulation order of 6 with a code rate ratio of 772 to 1024 with a spectral efficiency of 4.5234; a modulation order of 6 with a code rate ratio of 822 to 1024 with a spectral efficiency of 4.8164; and a modulation order of... 6. A modulation and coding scheme with a code rate ratio of 873 to 1024 and a spectral efficiency of 5.1152; a modulation and coding scheme with a modulation order of 8, a code rate ratio of 682.5 to 1024 and a spectral efficiency of 5.3320; a modulation and coding scheme with a modulation order of 8, a code rate ratio of 754 to 1024 and a spectral efficiency of 5.8906; a modulation and coding scheme with a modulation order of 8, a code rate ratio of 797 to 1024 and a spectral efficiency of 6.2266; a modulation and coding scheme with a modulation order of 8, a code rate ratio of 885 to 1024 and a spectral efficiency of 6.9141; a modulation and coding scheme with a modulation order of 8, a code rate ratio of 916.5 to 1024 and a spectral efficiency of 7.1602. The following modulation and coding schemes have the following spectral efficiencies: a modulation order of 8, a code rate ratio of 948 to 1024, and a spectral efficiency of 7.4063; a modulation order of 10, a code rate ratio of 805.5 to 1024, and a spectral efficiency of 7.8662; a modulation order of 10, a code rate ratio of 853 to 1024, and a spectral efficiency of 8.3301; a modulation order of 10, a code rate ratio of 900.5 to 1024, and a spectral efficiency of 8.7939; a modulation order of 10, a code rate ratio of 948 to 1024, and a spectral efficiency of 9.2578; and a modulation order of 12, a code rate ratio of 829.5 to 1024, and a spectral efficiency of 9.The modulation and coding schemes of 7207 include: a modulation order of 12, a code rate ratio of 869 to 1024, and a spectral efficiency of 10.1836; a modulation order of 12, a code rate ratio of 908.5 to 1024, and a spectral efficiency of 10.6465; a modulation order of 12, a code rate ratio of 948 to 1024, and a spectral efficiency of 11.1093; a modulation order of 2 with null values ​​for code rate and spectral efficiency; a modulation order of 4 with null values ​​for code rate and spectral efficiency; a modulation order of 6 with null values ​​for code rate and spectral efficiency; a modulation order of 8 with null values ​​for code rate and spectral efficiency; a modulation order of 10 with null values ​​for code rate and spectral efficiency; and a modulation order of 12 with null values ​​for code rate and spectral efficiency. In some embodiments, the highest modulation order supported by the terminal connected to the network device is 10 or 12. In some embodiments, the first modulation and coding scheme set includes a first number of modulation and coding schemes, which are obtained by adding and / or deleting modulation and coding schemes in the second modulation and coding scheme set. The first number of modulation and coding schemes includes at least one of the following: three modulation and coding schemes with a modulation order of 2 obtained by deleting modulation and coding schemes in the second modulation and coding scheme set; three modulation and coding schemes with a modulation order of 4 obtained by deleting modulation and coding schemes in the second modulation and coding scheme set; seven modulation and coding schemes with a modulation order of 6 obtained by deleting modulation and coding schemes in the second modulation and coding scheme set; six modulation and coding schemes with a modulation order of 8 obtained by deleting modulation and coding schemes in the second modulation and coding scheme set; four modulation and coding schemes with a modulation order of 10 obtained by deleting modulation and coding schemes in the second modulation and coding scheme set; and three modulation and coding schemes with a modulation order of 12 obtained by adding modulation and coding schemes in the second modulation and coding scheme set. In some embodiments, the first set of modulation and coding schemes includes at least one of the following modulation and coding schemes: a modulation and coding scheme with a modulation order of 2, a code rate of a ratio of 120 to 1024, and a spectral efficiency of 0.2344; a modulation and coding scheme with a modulation order of 2, a code rate of a ratio of 193 to 1024, and a spectral efficiency of 0.3770; a modulation and coding scheme with a modulation order of 2, a code rate of a ratio of 449 to 1024, and a spectral efficiency of 0.8770; a modulation and coding scheme with a modulation order of 4, a code rate of a ratio of 378 to 1024, and a spectral efficiency of 1.4766; a modulation and coding scheme with a modulation order of 4, a code rate of a ratio of 490 to 1024, and a spectral efficiency of 1.9141; a modulation and coding scheme with a modulation order of 4, a code rate of... The following modulation and coding schemes have the following spectral efficiency: a ratio of 616 to 1024, resulting in a spectral efficiency of 2.4063; a modulation order of 6, a code rate of 466 to 1024, resulting in a spectral efficiency of 2.7305; a modulation order of 6, a code rate of 567 to 1024, resulting in a spectral efficiency of 3.3223; a modulation order of 6, a code rate of 666 to 1024, resulting in a spectral efficiency of 3.9023; a modulation order of 6, a code rate of 719 to 1024, resulting in a spectral efficiency of 4.2129; a modulation order of 6, a code rate of 772 to 1024, resulting in a spectral efficiency of 4.5234; and a modulation order of 6, a code rate of... The following modulation and coding schemes have the following spectral efficiency: a ratio of 822 to 1024, resulting in a spectral efficiency of 4.8164; a modulation order of 6, a code rate ratio of 873 to 1024, resulting in a spectral efficiency of 5.1152; a modulation order of 8, a code rate ratio of 682.5 to 1024, resulting in a spectral efficiency of 5.3320; a modulation order of 8, a code rate ratio of 754 to 1024, resulting in a spectral efficiency of 5.8906; and a modulation order of 8, a code rate ratio of 797 to 1024, resulting in a spectral efficiency of 6.2266. The following modulation and coding schemes have the following spectral efficiencies: Modulation order 8, code rate ratio of 885 to 1024, spectral efficiency of 6.9141; Modulation order 8, code rate ratio of 916.5 to 1024, spectral efficiency of 7.1602; Modulation order 8, code rate ratio of 948 to 1024, spectral efficiency of 7.4063; Modulation order 10, code rate ratio of 805.5 to 1024, spectral efficiency of 7.8662; Modulation order 10, code rate ratio of 853 to 1024, spectral efficiency of 8.330. Modulation coding schemes with a modulation order of 10, a code rate ratio of 900.5 to 1024, and a spectral efficiency of 8.7939; a modulation coding scheme with a modulation order of 10, a code rate ratio of 948 to 1024, and a spectral efficiency of 9.2578; a modulation coding scheme with a modulation order of 12, a code rate ratio of 840.5 to 1024, or 843 to 1024, and a spectral efficiency of 9.8750; a modulation coding scheme with a modulation order of 12, a code rate ratio of 895 to 1024, and a spectral efficiency of 10.4922; modulation order... The following modulation and coding schemes are listed: a modulation order of 12, a code rate ratio of 948 to 1024, and a spectral efficiency of 11.1093 or 11.1094; a modulation order of 2 with null values ​​for code rate and spectral efficiency; a modulation order of 4 with null values ​​for code rate and spectral efficiency; a modulation order of 6 with null values ​​for code rate and spectral efficiency; a modulation order of 8 with null values ​​for code rate and spectral efficiency; a modulation order of 10 with null values ​​for code rate and spectral efficiency; and a modulation order of 12 with null values ​​for code rate and spectral efficiency. In some embodiments, the highest modulation order supported by the terminal connected to the network device for downlink transmission is 12, and the first modulation and coding scheme is used to receive PDSCH. In some embodiments, each modulation and coding scheme in the first modulation and coding scheme set corresponds to an index and a spectral efficiency. The first modulation and coding scheme set includes multiple modulation and coding schemes with a modulation order of 12. Among the multiple modulation and coding schemes with a modulation order of 12, the spectral efficiencies corresponding to every two adjacent modulation and coding schemes have the same difference. In some embodiments, each modulation and coding scheme in the first modulation and coding scheme set corresponds to a code rate, the code rate ranges from N-0.5 to N+0.5, the code rate accuracy is at the level of 0.001 or 0.0001, and N is determined based on the modulation order and spectral efficiency corresponding to the modulation and coding scheme. Figure 7a is a schematic diagram of a communication device according to an embodiment of this disclosure. The communication device 7100 can be a network device, a terminal, or a chip, chip system, or processor that supports the network device in implementing any of the above methods; alternatively, the network device can be an access network device, a core network device, etc. Optionally, the terminal can be a user equipment, etc. The communication device 7100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments. As shown in Figure 7a, the communication device 7100 includes one or more processors 7101. The processor 7101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control the communication device, execute programs, and process program data. The communication device 7100 is used to execute any of the above methods. Optionally, the communication device can be a base station, a baseband chip, a terminal device, a terminal device chip, a DU (Distributed Unit), or a CU (Computer Integrated Circuit), etc. In some embodiments, the communication device 7100 further includes one or more memories 7102 for storing instructions. Optionally, all or part of the memories 7102 may also be located outside the communication device 7100. In some embodiments, the communication device 7100 further includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, the transceivers 7103 perform communication steps such as sending and / or receiving in the above method, and the processor 7101 performs other steps. In some embodiments, a transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, etc., may be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., may be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., may be used interchangeably. In some embodiments, the communication device 7100 may include one or more interface circuits 7104. Optionally, the interface circuit 7104 is connected to the memory 7102, and the interface circuit 7104 can be used to receive signals from the memory 7102 or other devices, and can be used to send signals to the memory 7102 or other devices. For example, the interface circuit 7104 can read instructions stored in the memory 7102 and send the instructions to the processor 7101. The communication device 7100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 7100 described in this disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited to FIG. 7a. The communication device may be a standalone device or may be part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a set of one or more ICs, optionally, the IC set may also include those for storing data, programs, etc. (3) ASIC, such as modem; (4) module that can be embedded in other devices; (5) receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc. Figure 7b is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. For cases where the communication device 7100 can be a chip or a chip system, please refer to the schematic diagram of the chip 7200 shown in Figure 7b, but it is not limited thereto. Chip 7200 includes one or more processors 7201, which are used to perform any of the above methods. In some embodiments, chip 7200 further includes one or more interface circuits 7202. Optionally, the interface circuit 7202 is connected to memory 7203, and the interface circuit 7202 can be used to receive signals from memory 7203 or other devices, and the interface circuit 7202 can be used to send signals to memory 7203 or other devices. For example, the interface circuit 7202 can read instructions stored in memory 7203 and send the instructions to processor 7201. In some embodiments, the interface circuit 7202 performs communication steps such as sending and / or receiving in the above method, and the processor 7201 performs other steps. In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc., can be used interchangeably. In some embodiments, chip 7200 further includes one or more memories 7203 for storing instructions. Optionally, all or part of the memories 7203 may be located outside of chip 7200. This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 7100, cause the communication device 7100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium. This disclosure also provides a program product that, when executed by the communication device 7100, causes the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product. This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

Claims

1. A communication method, characterized in that, The method includes: The terminal determines a first modulation and coding scheme from a first modulation and coding scheme set. The first modulation and coding scheme set is obtained by adding and / or deleting modulation and coding schemes from a second modulation and coding scheme set. The second modulation and coding scheme set is the modulation and coding scheme set specified in the protocol, and does not include modulation and coding schemes with a modulation order of 12.

2. The method according to claim 1, characterized in that, The first set of modulation and coding schemes includes multiple modulation and coding schemes, among which at least one modulation and coding scheme has a modulation order of 12.

3. The method according to claim 2, characterized in that, The first set of modulation and coding schemes includes a first number of modulation and coding schemes and a second number of modulation and coding schemes. The first number of modulation and coding schemes is obtained by adding and / or deleting modulation and coding schemes from the second set of modulation and coding schemes. The second number of modulation and coding schemes is determined based on the type of modulation order. The first number of modulation and coding schemes includes at least one of the following: By reducing the modulation and coding schemes in the second modulation and coding scheme set, two modulation and coding schemes with a modulation order of 2 are obtained; By reducing the modulation and coding schemes in the second modulation and coding scheme set, three modulation and coding schemes with a modulation order of 4 are obtained; By reducing the modulation and coding schemes in the second modulation and coding scheme set, seven modulation and coding schemes with a modulation order of 6 are obtained; By reducing the modulation and coding schemes in the second modulation and coding scheme set, six modulation and coding schemes with a modulation order of 8 are obtained; By reducing the modulation and coding schemes in the second modulation and coding scheme set, four modulation and coding schemes with a modulation order of 10 are obtained; By adding modulation coding schemes to the second modulation coding scheme set, four modulation coding schemes with a modulation order of 12 are obtained.

4. The method according to claim 3, characterized in that, The first set of modulation and coding schemes includes at least one of the following modulation and coding schemes: A modulation and coding scheme with a modulation order of 2, a code rate ratio of 120 to 1024, and a spectral efficiency of 0.2344; A modulation coding scheme with a modulation order of 2, a code rate of 449 to 1024, and a spectral efficiency of 0.8770; A modulation coding scheme with a modulation order of 4, a code rate of 378 to 1024, and a spectral efficiency of 1.4766; A modulation coding scheme with a modulation order of 4, a code rate of 490 to 1024, and a spectral efficiency of 1.9141; A modulation and coding scheme with a modulation order of 4, a code rate of 616 to 1024, and a spectral efficiency of 2.4063; A modulation coding scheme with a modulation order of 6, a code rate ratio of 466 to 1024, and a spectral efficiency of 2.7305; A modulation coding scheme with a modulation order of 6, a code rate ratio of 567 to 1024, and a spectral efficiency of 3.3223; A modulation and coding scheme with a modulation order of 6, a code rate of 666 to 1024, and a spectral efficiency of 3.9023; A modulation and coding scheme with a modulation order of 6, a code rate of 719 to 1024, and a spectral efficiency of 4.2129; A modulation and coding scheme with a modulation order of 6, a code rate of 772 to 1024, and a spectral efficiency of 4.5234; A modulation and coding scheme with a modulation order of 6, a code rate of 822 to 1024, and a spectral efficiency of 4.8164; A modulation and coding scheme with a modulation order of 6, a code rate ratio of 873 to 1024, and a spectral efficiency of 5.1152; A modulation and coding scheme with a modulation order of 8, a code rate of 682.5 to 1024, and a spectral efficiency of 5.3320; A modulation coding scheme with a modulation order of 8, a code rate ratio of 754 to 1024, and a spectral efficiency of 5.8906; A modulation and coding scheme with a modulation order of 8, a code rate of 797 to 1024, and a spectral efficiency of 6.2266; A modulation and coding scheme with a modulation order of 8, a code rate of 885 to 1024, and a spectral efficiency of 6.9141; A modulation and coding scheme with a modulation order of 8, a code rate of 916.5 to 1024, and a spectral efficiency of 7.1602; A modulation coding scheme with a modulation order of 8, a code rate ratio of 948 to 1024, and a spectral efficiency of 7.4063; A modulation and coding scheme with a modulation order of 10, a code rate of 805.5 to 1024, and a spectral efficiency of 7.8662; A modulation coding scheme with a modulation order of 10, a code rate ratio of 853 to 1024, and a spectral efficiency of 8.3301; A modulation coding scheme with a modulation order of 10, a code rate ratio of 900.5 to 1024, and a spectral efficiency of 8.7939; A modulation and coding scheme with a modulation order of 10, a code rate ratio of 948 to 1024, and a spectral efficiency of 9.2578; A modulation coding scheme with a modulation order of 12, a code rate of 829.5 to 1024, and a spectral efficiency of 9.7207; A modulation and coding scheme with a modulation order of 12, a code rate of 869 to 1024, and a spectral efficiency of 10.1836; A modulation and coding scheme with a modulation order of 12, a code rate ratio of 908.5 to 1024, and a spectral efficiency of 10.6465; A modulation coding scheme with a modulation order of 12, a code rate ratio of 948 to 1024, and a spectral efficiency of 11.1093; A modulation and coding scheme with a modulation order of 2 and null values ​​for code rate and spectral efficiency; A modulation and coding scheme with a modulation order of 4 and null values ​​for code rate and spectral efficiency; A modulation and coding scheme with a modulation order of 6 and null values ​​for code rate and spectral efficiency; A modulation coding scheme with a modulation order of 8 and null values ​​for code rate and spectral efficiency; A modulation and coding scheme with a modulation order of 10 and null values ​​for code rate and spectral efficiency; A modulation coding scheme with a modulation order of 12 and null values ​​for code rate and spectral efficiency.

5. The method according to any one of claims 3 to 4, characterized in that, The terminal supports a maximum modulation order of 10 or 12 for downlink transmission, and the first modulation and coding scheme is used to receive the Physical Downlink Shared Channel (PDSCH).

6. The method according to claim 2, characterized in that, The first set of modulation and coding schemes includes a first number of modulation and coding schemes, which are obtained by adding and / or deleting modulation and coding schemes from the second set of modulation and coding schemes. The first number of modulation and coding schemes includes at least one of the following: By reducing the modulation and coding schemes in the second modulation and coding scheme set, three modulation and coding schemes with a modulation order of 2 are obtained; By reducing the modulation and coding schemes in the second modulation and coding scheme set, three modulation and coding schemes with a modulation order of 4 are obtained; By reducing the modulation and coding schemes in the second modulation and coding scheme set, seven modulation and coding schemes with a modulation order of 6 are obtained; By reducing the modulation and coding schemes in the second modulation and coding scheme set, six modulation and coding schemes with a modulation order of 8 are obtained; By reducing the modulation and coding schemes in the second modulation and coding scheme set, four modulation and coding schemes with a modulation order of 10 are obtained; By adding modulation coding schemes to the second modulation coding scheme set, three modulation coding schemes with a modulation order of 12 are obtained.

7. The method according to claim 6, characterized in that, The first set of modulation and coding schemes includes at least one of the following modulation and coding schemes: A modulation and coding scheme with a modulation order of 2, a code rate ratio of 120 to 1024, and a spectral efficiency of 0.2344; A modulation coding scheme with a modulation order of 2, a code rate of 193 to 1024, and a spectral efficiency of 0.3770; A modulation coding scheme with a modulation order of 2, a code rate of 449 to 1024, and a spectral efficiency of 0.8770; A modulation coding scheme with a modulation order of 4, a code rate of 378 to 1024, and a spectral efficiency of 1.4766; A modulation coding scheme with a modulation order of 4, a code rate of 490 to 1024, and a spectral efficiency of 1.9141; A modulation and coding scheme with a modulation order of 4, a code rate of 616 to 1024, and a spectral efficiency of 2.4063; A modulation coding scheme with a modulation order of 6, a code rate ratio of 466 to 1024, and a spectral efficiency of 2.7305; A modulation coding scheme with a modulation order of 6, a code rate ratio of 567 to 1024, and a spectral efficiency of 3.3223; A modulation and coding scheme with a modulation order of 6, a code rate of 666 to 1024, and a spectral efficiency of 3.9023; A modulation and coding scheme with a modulation order of 6, a code rate of 719 to 1024, and a spectral efficiency of 4.2129; A modulation and coding scheme with a modulation order of 6, a code rate of 772 to 1024, and a spectral efficiency of 4.5234; A modulation and coding scheme with a modulation order of 6, a code rate of 822 to 1024, and a spectral efficiency of 4.8164; A modulation and coding scheme with a modulation order of 6, a code rate ratio of 873 to 1024, and a spectral efficiency of 5.1152; A modulation and coding scheme with a modulation order of 8, a code rate of 682.5 to 1024, and a spectral efficiency of 5.3320; A modulation coding scheme with a modulation order of 8, a code rate ratio of 754 to 1024, and a spectral efficiency of 5.8906; A modulation and coding scheme with a modulation order of 8, a code rate of 797 to 1024, and a spectral efficiency of 6.2266; A modulation and coding scheme with a modulation order of 8, a code rate of 885 to 1024, and a spectral efficiency of 6.9141; A modulation and coding scheme with a modulation order of 8, a code rate of 916.5 to 1024, and a spectral efficiency of 7.1602; A modulation coding scheme with a modulation order of 8, a code rate ratio of 948 to 1024, and a spectral efficiency of 7.4063; A modulation and coding scheme with a modulation order of 10, a code rate of 805.5 to 1024, and a spectral efficiency of 7.8662; A modulation coding scheme with a modulation order of 10, a code rate ratio of 853 to 1024, and a spectral efficiency of 8.3301; A modulation coding scheme with a modulation order of 10, a code rate ratio of 900.5 to 1024, and a spectral efficiency of 8.7939; A modulation and coding scheme with a modulation order of 10, a code rate ratio of 948 to 1024, and a spectral efficiency of 9.2578; A modulation coding scheme with a modulation order of 12, a code rate of 840.5 to 1024, or a code rate of 843 to 1024, and a spectral efficiency of 9.8750. A modulation and coding scheme with a modulation order of 12, a code rate of 895 to 1024, and a spectral efficiency of 10.4922; A modulation coding scheme with a modulation order of 12, a code rate ratio of 948 to 1024, and a spectral efficiency of 11.1093 or 11.1094; A modulation and coding scheme with a modulation order of 2 and null values ​​for code rate and spectral efficiency; A modulation and coding scheme with a modulation order of 4 and null values ​​for code rate and spectral efficiency; A modulation and coding scheme with a modulation order of 6 and null values ​​for code rate and spectral efficiency; A modulation coding scheme with a modulation order of 8 and null values ​​for code rate and spectral efficiency; A modulation and coding scheme with a modulation order of 10 and null values ​​for code rate and spectral efficiency; A modulation coding scheme with a modulation order of 12 and null values ​​for code rate and spectral efficiency.

8. The method according to any one of claims 6 to 7, characterized in that, The terminal supports a maximum modulation order of 12 for downlink transmission, and the first modulation and coding scheme is used to receive the Physical Downlink Shared Channel (PDSCH).

9. The method according to any one of claims 1 to 8, characterized in that, In the first set of modulation and coding schemes, each modulation and coding scheme corresponds to an index and a spectral efficiency. The first set of modulation and coding schemes includes multiple modulation and coding schemes with a modulation order of 12. Among the multiple modulation and coding schemes with a modulation order of 12, the spectral efficiencies corresponding to every two adjacent modulation and coding schemes have the same difference.

10. The method according to any one of claims 1 to 9, characterized in that, In the first set of modulation and coding schemes, each modulation and coding scheme corresponds to a code rate. The code rate ranges from N-0.5 to N+0.5, and the code rate accuracy is at the level of 0.001 or 0.0001. N is determined based on the modulation order and spectral efficiency corresponding to the modulation and coding scheme.

11. A communication method, characterized in that, The method includes: The network device determines a first modulation and coding scheme from a first modulation and coding scheme set. The first modulation and coding scheme set is obtained by adding and / or deleting modulation and coding schemes from a second modulation and coding scheme set. The second modulation and coding scheme set is the set of modulation and coding schemes specified in the protocol, and does not include modulation and coding schemes with a modulation order of 12.

12. The method according to claim 11, characterized in that, The first set of modulation and coding schemes includes multiple modulation and coding schemes, among which at least one modulation and coding scheme has a modulation order of 12.

13. The method according to claim 12, characterized in that, The first set of modulation and coding schemes includes a first number of modulation and coding schemes and a second number of modulation and coding schemes. The first number of modulation and coding schemes is obtained by adding and / or deleting modulation and coding schemes from the second set of modulation and coding schemes. The second number of modulation and coding schemes is determined based on the type of modulation order. The first number of modulation and coding schemes includes at least one of the following: By reducing the modulation and coding schemes in the second modulation and coding scheme set, two modulation and coding schemes with a modulation order of 2 are obtained; By reducing the modulation and coding schemes in the second modulation and coding scheme set, three modulation and coding schemes with a modulation order of 4 are obtained; By reducing the modulation and coding schemes in the second modulation and coding scheme set, seven modulation and coding schemes with a modulation order of 6 are obtained; By reducing the modulation and coding schemes in the second modulation and coding scheme set, six modulation and coding schemes with a modulation order of 8 are obtained; By reducing the modulation and coding schemes in the second modulation and coding scheme set, four modulation and coding schemes with a modulation order of 10 are obtained; By adding modulation coding schemes to the second modulation coding scheme set, four modulation coding schemes with a modulation order of 12 are obtained.

14. The method according to claim 13, characterized in that, The first set of modulation and coding schemes includes at least one of the following modulation and coding schemes: A modulation and coding scheme with a modulation order of 2, a code rate ratio of 120 to 1024, and a spectral efficiency of 0.2344; A modulation coding scheme with a modulation order of 2, a code rate of 449 to 1024, and a spectral efficiency of 0.8770; A modulation coding scheme with a modulation order of 4, a code rate of 378 to 1024, and a spectral efficiency of 1.4766; A modulation coding scheme with a modulation order of 4, a code rate of 490 to 1024, and a spectral efficiency of 1.9141; A modulation and coding scheme with a modulation order of 4, a code rate of 616 to 1024, and a spectral efficiency of 2.4063; A modulation coding scheme with a modulation order of 6, a code rate ratio of 466 to 1024, and a spectral efficiency of 2.7305; A modulation coding scheme with a modulation order of 6, a code rate ratio of 567 to 1024, and a spectral efficiency of 3.3223; A modulation and coding scheme with a modulation order of 6, a code rate of 666 to 1024, and a spectral efficiency of 3.9023; A modulation and coding scheme with a modulation order of 6, a code rate of 719 to 1024, and a spectral efficiency of 4.2129; A modulation and coding scheme with a modulation order of 6, a code rate of 772 to 1024, and a spectral efficiency of 4.5234; A modulation and coding scheme with a modulation order of 6, a code rate of 822 to 1024, and a spectral efficiency of 4.8164; A modulation and coding scheme with a modulation order of 6, a code rate ratio of 873 to 1024, and a spectral efficiency of 5.1152; A modulation and coding scheme with a modulation order of 8, a code rate of 682.5 to 1024, and a spectral efficiency of 5.3320; A modulation coding scheme with a modulation order of 8, a code rate ratio of 754 to 1024, and a spectral efficiency of 5.8906; A modulation and coding scheme with a modulation order of 8, a code rate of 797 to 1024, and a spectral efficiency of 6.2266; A modulation and coding scheme with a modulation order of 8, a code rate of 885 to 1024, and a spectral efficiency of 6.9141; A modulation and coding scheme with a modulation order of 8, a code rate of 916.5 to 1024, and a spectral efficiency of 7.1602; A modulation coding scheme with a modulation order of 8, a code rate ratio of 948 to 1024, and a spectral efficiency of 7.4063; A modulation and coding scheme with a modulation order of 10, a code rate of 805.5 to 1024, and a spectral efficiency of 7.8662; A modulation coding scheme with a modulation order of 10, a code rate ratio of 853 to 1024, and a spectral efficiency of 8.3301; A modulation coding scheme with a modulation order of 10, a code rate ratio of 900.5 to 1024, and a spectral efficiency of 8.7939; A modulation and coding scheme with a modulation order of 10, a code rate ratio of 948 to 1024, and a spectral efficiency of 9.2578; A modulation coding scheme with a modulation order of 12, a code rate of 829.5 to 1024, and a spectral efficiency of 9.7207; A modulation and coding scheme with a modulation order of 12, a code rate of 869 to 1024, and a spectral efficiency of 10.1836; A modulation and coding scheme with a modulation order of 12, a code rate ratio of 908.5 to 1024, and a spectral efficiency of 10.6465; A modulation coding scheme with a modulation order of 12, a code rate ratio of 948 to 1024, and a spectral efficiency of 11.1093; A modulation and coding scheme with a modulation order of 2 and null values ​​for code rate and spectral efficiency; A modulation and coding scheme with a modulation order of 4 and null values ​​for code rate and spectral efficiency; A modulation and coding scheme with a modulation order of 6 and null values ​​for code rate and spectral efficiency; A modulation coding scheme with a modulation order of 8 and null values ​​for code rate and spectral efficiency; A modulation and coding scheme with a modulation order of 10 and null values ​​for code rate and spectral efficiency; A modulation coding scheme with a modulation order of 12 and null values ​​for code rate and spectral efficiency.

15. The method according to any one of claims 13 to 14, characterized in that, The highest modulation order supported by the terminal connected to the network device is 10 or 12 for downlink transmission, and the first modulation and coding scheme is used to receive the Physical Downlink Shared Channel (PDSCH).

16. The method according to claim 12, characterized in that, The first set of modulation and coding schemes includes a first number of modulation and coding schemes, which are obtained by adding and / or deleting modulation and coding schemes from the second set of modulation and coding schemes. The first number of modulation and coding schemes includes at least one of the following: By reducing the modulation and coding schemes in the second modulation and coding scheme set, three modulation and coding schemes with a modulation order of 2 are obtained; By reducing the modulation and coding schemes in the second modulation and coding scheme set, three modulation and coding schemes with a modulation order of 4 are obtained; By reducing the modulation and coding schemes in the second modulation and coding scheme set, seven modulation and coding schemes with a modulation order of 6 are obtained; By reducing the modulation and coding schemes in the second modulation and coding scheme set, six modulation and coding schemes with a modulation order of 8 are obtained; By reducing the modulation and coding schemes in the second modulation and coding scheme set, four modulation and coding schemes with a modulation order of 10 are obtained; By adding modulation coding schemes to the second modulation coding scheme set, three modulation coding schemes with a modulation order of 12 are obtained.

17. The method according to claim 16, characterized in that, The first set of modulation and coding schemes includes at least one of the following modulation and coding schemes: A modulation and coding scheme with a modulation order of 2, a code rate ratio of 120 to 1024, and a spectral efficiency of 0.2344; A modulation coding scheme with a modulation order of 2, a code rate of 193 to 1024, and a spectral efficiency of 0.3770; A modulation coding scheme with a modulation order of 2, a code rate of 449 to 1024, and a spectral efficiency of 0.8770; A modulation coding scheme with a modulation order of 4, a code rate of 378 to 1024, and a spectral efficiency of 1.4766; A modulation coding scheme with a modulation order of 4, a code rate of 490 to 1024, and a spectral efficiency of 1.9141; A modulation and coding scheme with a modulation order of 4, a code rate of 616 to 1024, and a spectral efficiency of 2.4063; A modulation coding scheme with a modulation order of 6, a code rate ratio of 466 to 1024, and a spectral efficiency of 2.7305; A modulation coding scheme with a modulation order of 6, a code rate ratio of 567 to 1024, and a spectral efficiency of 3.3223; A modulation and coding scheme with a modulation order of 6, a code rate of 666 to 1024, and a spectral efficiency of 3.9023; A modulation and coding scheme with a modulation order of 6, a code rate of 719 to 1024, and a spectral efficiency of 4.2129; A modulation and coding scheme with a modulation order of 6, a code rate of 772 to 1024, and a spectral efficiency of 4.5234; A modulation and coding scheme with a modulation order of 6, a code rate of 822 to 1024, and a spectral efficiency of 4.8164; A modulation and coding scheme with a modulation order of 6, a code rate ratio of 873 to 1024, and a spectral efficiency of 5.1152; A modulation and coding scheme with a modulation order of 8, a code rate of 682.5 to 1024, and a spectral efficiency of 5.3320; A modulation coding scheme with a modulation order of 8, a code rate ratio of 754 to 1024, and a spectral efficiency of 5.8906; A modulation and coding scheme with a modulation order of 8, a code rate of 797 to 1024, and a spectral efficiency of 6.2266; A modulation and coding scheme with a modulation order of 8, a code rate of 885 to 1024, and a spectral efficiency of 6.9141; A modulation and coding scheme with a modulation order of 8, a code rate of 916.5 to 1024, and a spectral efficiency of 7.1602; A modulation coding scheme with a modulation order of 8, a code rate ratio of 948 to 1024, and a spectral efficiency of 7.4063; A modulation and coding scheme with a modulation order of 10, a code rate of 805.5 to 1024, and a spectral efficiency of 7.8662; A modulation coding scheme with a modulation order of 10, a code rate ratio of 853 to 1024, and a spectral efficiency of 8.3301; A modulation coding scheme with a modulation order of 10, a code rate ratio of 900.5 to 1024, and a spectral efficiency of 8.7939; A modulation and coding scheme with a modulation order of 10, a code rate ratio of 948 to 1024, and a spectral efficiency of 9.2578; A modulation coding scheme with a modulation order of 12, a code rate of 840.5 to 1024, or a code rate of 843 to 1024, and a spectral efficiency of 9.8750. A modulation and coding scheme with a modulation order of 12, a code rate of 895 to 1024, and a spectral efficiency of 10.4922; A modulation coding scheme with a modulation order of 12, a code rate ratio of 948 to 1024, and a spectral efficiency of 11.1093 or 11.1094; A modulation and coding scheme with a modulation order of 2 and null values ​​for code rate and spectral efficiency; A modulation and coding scheme with a modulation order of 4 and null values ​​for code rate and spectral efficiency; A modulation and coding scheme with a modulation order of 6 and null values ​​for code rate and spectral efficiency; A modulation coding scheme with a modulation order of 8 and null values ​​for code rate and spectral efficiency; A modulation and coding scheme with a modulation order of 10 and null values ​​for code rate and spectral efficiency; A modulation coding scheme with a modulation order of 12 and null values ​​for code rate and spectral efficiency.

18. The method according to any one of claims 16 to 17, characterized in that, The highest modulation order supported by the terminal connected to the network device is 12 for downlink transmission, and the first modulation and coding scheme is used to receive PDSCH.

19. The method according to any one of claims 11 to 18, characterized in that, In the first set of modulation and coding schemes, each modulation and coding scheme corresponds to an index and a spectral efficiency. The first set of modulation and coding schemes includes multiple modulation and coding schemes with a modulation order of 12. Among the multiple modulation and coding schemes with a modulation order of 12, the spectral efficiencies corresponding to every two adjacent modulation and coding schemes have the same difference.

20. The method according to any one of claims 11 to 19, characterized in that, In the first set of modulation and coding schemes, each modulation and coding scheme corresponds to a code rate. The code rate ranges from N-0.5 to N+0.5, and the code rate accuracy is at the level of 0.001 or 0.0001. N is determined based on the modulation order and spectral efficiency corresponding to the modulation and coding scheme.

21. A terminal, characterized in that, include: The processing module is used to determine a first modulation and coding scheme from a first modulation and coding scheme set, wherein the first modulation and coding scheme set is obtained by adding and / or deleting modulation and coding schemes from a second modulation and coding scheme set, the second modulation and coding scheme set is a set of modulation and coding schemes specified in the protocol, and the second modulation and coding scheme set does not include modulation and coding schemes with a modulation order of 12.

22. A network device, characterized in that, include: The processing module is used to determine a first modulation and coding scheme from a first modulation and coding scheme set, wherein the first modulation and coding scheme set is obtained by adding and / or deleting modulation and coding schemes from a second modulation and coding scheme set, the second modulation and coding scheme set is a set of modulation and coding schemes specified in the protocol, and the second modulation and coding scheme set does not include modulation and coding schemes with a modulation order of 12.

23. A terminal, characterized in that, include: One or more processors; The processor is used to execute the communication method according to any one of claims 1-10.

24. A network device, characterized in that, include: One or more processors; The processor is used to execute the communication method according to any one of claims 11-20.

25. A storage medium, characterized in that, include: The storage medium stores instructions that, when executed on a communication device, cause the communication device to perform the communication method as described in any one of claims 1-10 or 11-20.

26. A program product, characterized in that, include: A computer program, when executed by a communication device, causes the communication device to perform the communication method as described in any one of claims 1-10 or 11-20.

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