Method, apparatus and communication device for transmitting modulation and coding scheme (MCS) indication information

Abstract

This application discloses an MCS indication information transmission method, apparatus, and communication device, which belong to the communication technology field. When executed by a first communication device, the MCS indication information transmission method includes transmitting first indication information, second indication information, and third indication information to a second communication device if the second communication device has the ability to support 1024QAM, wherein the first indication information is used to indicate an MCS table to be used for data transmission by the second communication device, the MCS table including MCS levels corresponding to a modulation scheme with a modulation order of 10; the second indication information is used to indicate a CQI table to be used for CQI feedback by the second communication device, the CQI table including CQI levels corresponding to the 1024QAM modulation scheme; and the third indication information is used to determine an MCS level corresponding to a channel received or transmitted by the second communication device based on the MCS table.

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS) This application claims priority to Chinese Patent Application No. 202011140865.X filed in China on October 22, 2020, the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the field of communication technology, and in particular to a method, apparatus and communication device for transmitting MCS indication information. [Background technology]

[0003] Currently, in communication systems (e.g., New Radio (NR) systems), both downlink and uplink channel services adopt Adaptive Modulation and Coding (AMC) technology, which is used to determine the modulation scheme and code rate based on channel conditions to improve the spectral efficiency of the system. However, since the NR system currently supports a maximum 256QAM modulation scheme, the data throughput is relatively low in communication scenarios with high signal-to-noise ratios, which affects the communication efficiency of the communication system. Summary of the Invention [Problem to be solved by the invention]

[0004] An objective of the embodiments of the present application is to provide a method, apparatus and communication device for transmitting MCS indication information, which can improve the data throughput in a high signal-to-noise ratio communication scenario of a communication system. [Means for solving the problem]

[0005] According to a first aspect, there is provided an MCS indication information transmission method executed by a first communication device, the MCS indication information transmission method comprising: transmitting first indication information, second indication information and third indication information to the second communication device if the second communication device has an ability to support 1024 quadrature amplitude modulation (QAM); Wherein, the first indication information is used to indicate a modulation coding policy (MCS) table to be used for data transmission by the second communication device, and the MCS table includes an MCS level corresponding to a modulation scheme with a modulation order of 10; the second indication information is used to indicate a CQI table used for channel quality indication CQI feedback by the second communication device, the CQI table including CQI levels corresponding to a 1024QAM modulation scheme; The third indication information is used to determine, based on the MCS table, an MCS level corresponding to a channel received or transmitted by the second communication device.

[0006] According to a second aspect, there is provided an MCS indication information transmission method executed by a second communication device, the MCS indication information transmission method comprising: receiving first indication information, second indication information and third indication information transmitted by a first communication device when the second communication device has a capability of supporting 1024 quadrature amplitude modulation (QAM); Wherein, the first indication information is used to indicate a modulation coding policy (MCS) table to be used for data transmission by the second communication device, and the MCS table includes an MCS level corresponding to a modulation scheme with a modulation order of 10; the second indication information is used to indicate a CQI table used for channel quality indication CQI feedback by the second communication device, the CQI table including CQI levels corresponding to a 1024QAM modulation scheme; The third indication information is used to determine, based on the MCS table, an MCS level corresponding to a channel received or transmitted by the second communication device.

[0007] According to a third aspect, there is provided an MCS indication information transmission device, the MCS indication information transmission device comprising: a transmitting module for transmitting the first indication information, the second indication information and the third indication information to the second communication device when the second communication device has an ability to support 1024 quadrature amplitude modulation (QAM); Wherein, the first indication information is used to indicate a modulation coding policy (MCS) table to be used for data transmission by the second communication device, and the MCS table includes an MCS level corresponding to a modulation scheme with a modulation order of 10; the second indication information is used to indicate a CQI table used for channel quality indication CQI feedback by the second communication device, the CQI table including CQI levels corresponding to a 1024QAM modulation scheme; The third indication information is used to determine, based on the MCS table, an MCS level corresponding to a channel received or transmitted by the second communication device.

[0008] According to a fourth aspect, there is provided an MCS indication information transmission device, the MCS indication information transmission device comprising: When the MCS indication information transmission device has the ability to support 1024 quadrature amplitude modulation (QAM), the device includes a receiving module for receiving the first indication information, the second indication information and the third indication information transmitted by the first communication device; Wherein, the first indication information is used to indicate a modulation coding policy (MCS) table used for data transmission by the MCS indication information transmission device, and the MCS table includes an MCS level corresponding to a modulation scheme with a modulation order of 10; the second indication information is used to indicate a CQI table used for channel quality indication CQI feedback by the MCS indication information transmission device, the CQI table including CQI levels corresponding to a 1024QAM modulation scheme; The third indication information is used to determine an MCS level corresponding to a channel that the MCS indication information transmission device receives or transmits based on the MCS table.

[0009] According to a fifth aspect, there is provided a communications device, the communications device including a processor, a memory, and a program or instructions stored in the memory and operable to run on the processor, the program or instructions, when executed by the processor, implementing steps of the MCS indication information transmission method described in the first aspect, or implementing steps of the MCS indication information transmission method described in the second aspect.

[0010] According to a sixth aspect, there is provided a readable storage medium, on which a program or instructions are stored, and which, when executed by a processor, realizes the steps of the MCS indication information transmission method described in the first aspect, or realizes the steps of the MCS indication information transmission method described in the second aspect.

[0011] According to a seventh aspect, there is provided a chip, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor running a program or instruction of a network side device to realize the MCS indication information transmission method described in the first aspect, or the MCS indication information transmission method described in the second aspect.

[0012] According to an eighth aspect, there is provided a computer program product, the computer program product being stored in a non-volatile storage medium, and the computer program product being executed by at least one processor to realize the MCS indication information transmission method described in the first aspect or the MCS indication information transmission method described in the second aspect. Effect of the Invention

[0013] In an embodiment of the present application, the MCS table indicated by the first instruction information at least includes an MCS level corresponding to a modulation scheme with a modulation order of 10, whereby the MCS level determined by the third instruction information may be an MCS level corresponding to a modulation scheme with a modulation order of 10; the second communication device has the ability to support 1024QAM; and the second communication device can use a modulation scheme and code rate corresponding to a modulation order of 10 for a channel scheduled by it, thereby enabling the communication system to support higher order modulation and ensuring that the communication system can have a relatively high data throughput in a communication scenario with a high signal-to-noise ratio, and improving the transmission efficiency of the communication system. [Brief description of the drawings]

[0014] [Figure 1] 1 is a block diagram of a wireless communication system to which an embodiment of the present application can be applied. [Diagram 2] 2 is a flowchart of a method for transmitting MCS indication information according to an embodiment of the present application. [Diagram 3] 1 is a structural diagram of an MCS indication information transmission device according to an embodiment of the present application; [Figure 4] 4 is a flowchart of another MCS indication information transmission method according to an embodiment of the present application. [Diagram 5] FIG. 2 is a structural diagram of another MCS indication information transmission device according to an embodiment of the present application; [Figure 6] FIG. 2 is a structural diagram of a communication device according to an embodiment of the present application; [Figure 7] FIG. 2 is a structural diagram of a terminal according to an embodiment of the present application; [Figure 8] FIG. 2 is a structural diagram of a network side device according to an embodiment of the present application; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] The following clearly describes the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application are all within the scope of protection of the present application.

[0016] The terms "first," "second," etc. in the specification and claims of the present application are intended to distinguish between similar objects and are not intended to describe a particular order or sequence. It is to be understood that data so used are interchangeable where appropriate, such that the embodiments of the present application may be performed in an order other than that shown or described herein, and that the objects distinguished by "first" and "second" are generally of the same type and do not limit the number of objects, e.g., the first object may be one or more. Note that "and / or" in the specification and claims represents at least one of the objects connected, and the character " / " generally represents an "or" relationship between the related objects.

[0017] It should be noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be applied to other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are always used interchangeably, and the techniques described may be used in the above-mentioned systems and radio technologies, or in other systems and radio technologies. However, although the following description describes New Radio (NR) systems for illustrative purposes and uses NR terminology in most of the following description, these technologies may also be used in applications other than NR system applications, such as sixth generation (6G) systems. th This may be applied to a 6G (6th Generation) communication system.

[0018] FIG. 1 shows a block diagram of a wireless communication system to which the embodiment of the present application can be applied. The wireless communication system includes a terminal 11 and a network side device 12. Here, the terminal 11 may be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a terminal side device such as a mobile phone, a tablet personal computer, a laptop computer (or called a notebook computer), a personal digital assistant (PDA), a palmtop computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (MID), a wearable device (Wearable Device) or a vehicle-mounted device (VUE), a pedestrian terminal (PUE), etc., and the wearable device includes a bracelet, an earphone, glasses, etc. It should be noted that the specific type of the terminal 11 in the embodiment of the present application is not limited. The network side equipment 12 may be a base station or a core network, where the base station may be called a Node B, an evolved Node B, an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting receiving point (TRP), or any other suitable term in the art, and as long as the same technical effect is achieved, the base station is not limited to a specific technical term, and it should be explained that in the embodiments of this application, only a base station in an NR system is taken as an example, but the specific type of the base station is not limited.

[0019] In addition, the communication system to which the embodiments of the present application can be applied may also be a sidelink communication system, and the specific implementation form of the sidelink communication system may be referred to the related art, which will not be described in detail.

[0020] Hereinafter, a method, apparatus and communication device for transmitting modulation and coding scheme (MCS) indication information according to an embodiment of the present application will be described in detail with reference to specific embodiments and application scenarios thereof in conjunction with the drawings.

[0021] Referring to Figure 2, Figure 2 is a flowchart of a method for transmitting MCS indication information according to an embodiment of the present application, where the method according to the embodiment of the present application is applied to a first communication device, and the first communication device may be a network side device or a terminal in a sidelink communication system, etc.

[0022] As shown in FIG. 2, the method for transmitting MCS indication information includes the following steps.

[0023] In step 201, if a second communication device has the capability of supporting 1024 quadrature amplitude modulation (QAM), send first indication information, second indication information and third indication information to the second communication device.

[0024] Here, the first instruction information is used to indicate an MCS table to be used for data transmission by the second communication device, the MCS table including MCS levels corresponding to a modulation scheme with a modulation order of 10; the second instruction information is used to indicate a CQI table to be used for Channel Quality Indicator (CQI) feedback by the second communication device, the CQI table including CQI levels corresponding to a 1024QAM modulation scheme; and the third instruction information is used to determine, based on the MCS table, an MCS level corresponding to a channel to be received or transmitted by the second communication device.

[0025] Alternatively, the first indication information and the second indication information are transmitted via higher layer signaling, and the third indication information is transmitted via indication information in downlink control information (DCI).

[0026] For example, the first communication device is a network side device, the second communication device is a terminal, and the network side device may indicate an MCS table to be used for data transmission by the terminal by transmitting first instruction information to the terminal via higher layer signaling, and the first instruction information may be at least one of a parameter in the higher layer signaling PUSCH-Config, a parameter in the higher layer signaling ConfiguredGrantConfig, a parameter in the higher layer signaling PDSCH-Config, and a parameter in the higher layer signaling SPS-Config. The network side device may indicate a CQI table to be used for CQI feedback by the terminal by transmitting second instruction information to the terminal via higher layer signaling, and the second instruction information may be at least one of parameters in the higher layer signaling CSI-ReportConfig.

[0027] It should be noted that the MCS table includes MCS index, modulation order, target code rate and spectral efficiency, and as shown in Table 1, each MCS index corresponds to a unique MCS level, where MCS index 0 represents a first MCS level, MCS index 1 represents a second MCS level, and so on.

[0028] [Table 1]

[0029] The first communication device can notify the second communication device of the determined MCS level via third instruction information of 5 bits in downlink control information (DCI), and the second communication device knows the MCS level to be used for transmission on a physical downlink shared channel (PDSCH) by the first communication device based on the MCS level indicated in the third instruction information received via a physical downlink control channel (PDCCH), determines a modulation order and code rate corresponding to the indicated MCS level based on the correspondence in the MCS table indicated in the first instruction information, and performs demodulation and decoding on the corresponding data in the PDSCH.

[0030] In an embodiment of the present application, the MCS table further includes MCS table 2 shown in Table 2 and MCS table 3 shown in Table 3.

[0031] [Table 2]

[0032] [Table 3]

[0033] It should be noted that the second communication device needs to measure a downlink channel and feed back a CQI to the first communication device, the CQI feedback may be a modulation scheme and a code rate recommended by the transmission of a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH), and the first communication device determines an MCS corresponding to the uplink or downlink channel based on the CQI fed back by the second communication device and a prediction algorithm. In the NR system, the modulation scheme and the code rate are quantized into 15 kinds of CQI levels defined by a 4-bit table, i.e., a CQI table format, and the following CQI tables 1 to 3 correspond to the above MCS tables 1 to 3, respectively, and the CQI tables 1 to 3 define modulation schemes, code rates, and spectral efficiencies corresponding to different CQI levels. Here, a CQI index of 0 represents a first CQI level, a CQI index of 1 represents a second CQI level, and so on.

[0034] [Table 4]

[0035] [Table 5]

[0036] [Table 6]

[0037] In an embodiment of the present application, when the second communication device has the ability to support 1024QAM, the first communication device transmits first instruction information to the second communication device, and the first instruction information is used to indicate an MCS table to be used for data transmission by the second communication device; and after determining an MCS level based on the MCS table, the first communication device notifies the second communication device of the MCS level corresponding to a channel to be received or transmitted by the second communication device via third instruction information, thereby instructing the second communication device to determine a modulation scheme and a code rate to be used for the channel to be received or transmitted by it based on the MCS level.

[0038] The MCS table according to the embodiment of the present application at least includes an MCS level corresponding to a modulation scheme with a modulation order of 10, whereby the MCS level determined by the third indication information may be an MCS level corresponding to a modulation scheme with a modulation order of 10; and the second communication device has the capability of supporting 1024QAM, and the second communication device can use a modulation scheme and code rate corresponding to a modulation order of 10 for a channel scheduled by it, whereby the communication system can support higher order modulation, ensuring that the communication system can have a relatively high data throughput amount in a communication scenario with a high signal-to-noise ratio, and improving the transmission efficiency of the communication system.

[0039] In an embodiment of the present application, an MCS table including MCS levels corresponding to a modulation scheme with a modulation order of 10 may be designed based on a CQI table. Optionally, the CQI table includes CQI levels corresponding to 1024QAM, and the CQI table includes: A CQI level corresponding to 256QAM in a first CQI table is included, and the first CQI table is a CQI table including a CQI level corresponding to 256QAM (i.e., Table 5 shown above); The spectral efficiencies corresponding to each CQI level are equally spaced; and The code rates corresponding to each CQI level are equally spaced. The signal-to-noise ratios corresponding to each CQI level are equally spaced; and The spectral efficiency is rounded off to four decimal places; The CQI table further includes: When a decimal appears in the code rate, the code rate is determined by a round-up method; When a decimal appears in the code rate, the code rate is determined by a rounding down method; When a decimal appears in the code rate, the code rate is determined by rounding off to an integer; and if a decimal appears in the code rate, the code rate is held to one decimal place.

[0040] It should be noted that, in order to be better distinguished from the above CQI Tables 1 to 3, in the following description of the embodiments of the present application, the CQI table including the CQI levels corresponding to 1024QAM is called a first target CQI table, and the first target CQI table satisfies at least one of the above conditions.

[0041] Here, the first target CQI table includes CQI levels corresponding to 256QAM in the first CQI table (i.e., Table 5, CQI Table 2), that is, the first target CQI table may be designed based on the above CQI Table 2.

[0042] In an embodiment of the present application, the CQI table includes at least two CQI levels corresponding to a 1024QAM modulation scheme, that is, the first target CQI table includes at least two CQI levels corresponding to a 1024QAM modulation scheme, for example, may include a first CQI level and a second CQI level, or may further include a third CQI level and a fourth CQI level.

[0043] Optionally, in one embodiment, the first target CQI table includes a first CQI level and a second CQI level corresponding to a 1024QAM modulation scheme, a code rate corresponding to the first CQI level is different from a code rate corresponding to the second CQI level, and a spectral efficiency corresponding to the first CQI level is different from a spectral efficiency corresponding to the second CQI level.

[0044] That is, the first target CQI table includes a first CQI level and a second CQI level corresponding to the 1024QAM modulation method. It should also be noted that the first target CQI table may be designed based on the above CQI table 2, and when the CQI level corresponding to 256QAM in the CQI table 2 is left in the first target CQI table and the first CQI level and the second CQI level corresponding to the 1024QAM modulation method need to be added, two CQI levels in the CQI table 2 may be reduced. Alternatively, the reduction may be performed according to a preset reduction order of QPSK, 16QAM, and 64QAM, for example, the CQI level corresponding to QPSK is reduced first, and then the CQI levels corresponding to 16QAM and 64QAM are reduced. Of course, the CQI levels in the CQI table 2 may be selectively reduced according to other rules. In one alternative embodiment of the present application, the CQI level corresponding to CQI index 5 and the CQI level corresponding to CQI index 7 in CQI table 2 are deleted, and a first CQI level and a second CQI level corresponding to the 1024QAM modulation scheme are added.

[0045] Here, in the first target CQI table, the code rates and the spectral efficiency corresponding to the first CQI level and the second CQI level may be determined based on at least one of the above conditions. For example, if the spectral efficiency corresponding to each CQI level in the first target CQI table is equally spaced, the spectral efficiency corresponding to each of the first CQI level and the second CQI level can be determined based on the spectral efficiency between each CQI level already determined in CQI table 2, and the spectral efficiency corresponding to the first CQI level and the second CQI level is held to four decimal places by a rounding method. Also, for example, if the code rates corresponding to each CQI level in the first target CQI table are equally spaced, the code rates corresponding to each of the first CQI level and the second CQI level can be determined based on the code rate between each CQI level already determined in CQI table 2. Alternatively, the code rate in the first target CQI table may further satisfy that, when a decimal appears in the code rate, the code rate is determined by a method of rounding up, rounding down, or rounding off to an integer, or the code rate is held to one decimal place. For example, the code rate corresponding to the first CQI level may be an integer and may be held to one decimal place, or the code rate corresponding to the first CQI level may correspond to multiple values, etc.

[0046] Optionally, a code rate and a spectral efficiency corresponding to the first CQI level may be determined based on the above condition, for example, a code rate corresponding to the first CQI level is 853 and a corresponding spectral efficiency is 8.3321.

[0047] Optionally, a code rate and a spectral efficiency corresponding to the second CQI level may be determined based on the above conditions, for example, a code rate corresponding to the second CQI level is 948 and a corresponding spectral efficiency is 9.2578.

[0048] In this way, a first target CQI table can be obtained, such as CQI Table 4 shown in Table 7 below.

[0049] [Table 7]

[0050] In the above CQI table 4, the first CQI level and the second CQI level corresponding to the 1024QAM modulation scheme correspond to CQI index 14 and CQI index 15, respectively. In this way, the second instruction information transmitted by the first communication device to the second communication device may indicate the above CQI tables 1 to 3, or may indicate CQI table 4, and further the CQI table used for channel quality feedback by the second communication device may include the CQI level corresponding to the 1024QAM modulation scheme, further facilitating higher order modulation in the communication system.

[0051] In an embodiment of the present application, the CQI table includes at least two CQI levels corresponding to a 1024QAM modulation scheme, and the CQI table 4 includes a first CQI level and a second CQI level, and the CQI table further includes a third CQI level and a fourth CQI level corresponding to the 1024QAM modulation scheme, and the third CQI level and the fourth CQI level are obtained based on the first CQI level and the second CQI level.

[0052] That is, on the above CQI table 4, it is possible to further increase the third CQI level and the fourth CQI level corresponding to the 1024QAM modulation scheme, while leaving the first CQI level and the second CQI level in CQI table 4. In order to better explain this embodiment, the CQI table including the first CQI level, the second CQI level, the third CQI level and the fourth CQI level is defined as a second target CQI table, and this second target CQI table is similarly defined as follows: A CQI level corresponding to 256QAM in a first CQI table is included, and the first CQI table is a CQI table including a CQI level corresponding to 256QAM (i.e., Table 5 shown above); The spectral efficiencies corresponding to each CQI level are equally spaced; and The code rates corresponding to each CQI level are equally spaced. The signal-to-noise ratios corresponding to each CQI level are equally spaced; and The spectral efficiency is rounded off to four decimal places; The CQI table further includes: When a decimal appears in the code rate, the code rate is determined by a round-up method; When a decimal appears in the code rate, the code rate is determined by a rounding down method; When a decimal appears in the code rate, the code rate is determined by rounding off to an integer; and if a decimal appears in the code rate, the code rate is held to one decimal place.

[0053] As can be seen, the second target CQI table is designed based on the above CQI table 4, and when the third CQI level and the fourth CQI level corresponding to the 1024QAM modulation scheme are added, two CQI levels in the CQI table 4 can be eliminated, but at the same time, the CQI levels corresponding to the 1024QAM and 256QAM modulation schemes need to be left. Here, the code rate and the spectral efficiency corresponding to the third CQI level and the fourth CQI level may be determined based on at least one of the above conditions. For example, if the spectral efficiency corresponding to each CQI level in the second target CQI table is equally spaced, the spectral efficiency corresponding to the third CQI level and the fourth CQI level can be determined based on the spectral efficiency of each CQI level already determined in the above CQI table 4, and the spectral efficiency corresponding to the third CQI level and the fourth CQI level is maintained to four decimal places by rounding off. Also, when the code rates between the third CQI level and the fourth CQI level and the other CQI levels are equally spaced and a decimal appears in the code rate, the code rate may be determined by rounding up, down, or rounding off to an integer, or the code rate may be maintained to one decimal place. For example, the code rate corresponding to the third CQI level may correspond to a plurality of possible values, and the code rate corresponding to the fourth CQI level may correspond to a plurality of possible values.

[0054] Alternatively, the third CQI level may be obtained by interpolating the first CQI level and the second CQI level, for example, the spectral efficiencies corresponding to the first CQI level, the second CQI level and the third CQI level are equally spaced, and the spectral efficiencies of the first CQI level and the second CQI level are known, and thus the spectral efficiency corresponding to the third CQI level can be determined. The fourth CQI level is obtained by interpolating the first CQI level and the second CQI level.

[0055] Here, a code rate corresponding to the third CQI level is any one of 805, 806, and 805.5, and a spectral efficiency corresponding to the third CQI level is any one of 7.8613, 7.8711, and 7.8662.

[0056] A code rate corresponding to the fourth CQI level is any one of 900, 901, and 900.5, and a spectral efficiency corresponding to the fourth CQI level is any one of 8.7891, 8.7988, and 8.7939.

[0057] Specifically, second target CQI tables such as CQI Tables 5 to 8 shown in Tables 8 to 11 below can be obtained.

[0058] [Table 8]

[0059] [Table 9]

[0060] [Table 10]

[0061] [Table 11]

[0062] In the above CQI tables 5 to 8, the first CQI level corresponding to the 1024QAM modulation scheme corresponds to CQI index 13, the second CQI level corresponds to CQI index 15, the third CQI level corresponds to CQI index 12, and the fourth CQI level corresponds to CQI index 14. In this way, the first communication device instructs that the CQI tables used for channel quality feedback by the second communication device include CQI tables 1 to 8, which may include more CQI levels corresponding to the 1024QAM modulation scheme, further improving the flexibility and selectivity of the second communication device for channel quality feedback, and further favoring the communication system to perform higher order modulation, improving the data throughput amount in high signal-to-noise ratio scenarios of the communication system.

[0063] Optionally, the CQI table is adapted to be configured by Radio Resource Control (RRC) signaling.

[0064] In an embodiment of the present application, the MCS table at least includes an MCS level corresponding to a modulation scheme with a modulation order of 10, and the MCS table may be designed based on the CQI table. Optionally, the MCS table may include: including code rates and spectral efficiencies in the CQI table; Including an MCS level corresponding to 256QAM in a first MCS table, the first MCS table being an MCS table including an MCS level corresponding to 256QAM; The spectral efficiencies corresponding to each MCS level are equally spaced. The target code rates corresponding to each MCS level are equally spaced. The signal-to-noise ratios corresponding to each MCS level are equally spaced. The spectral efficiency is rounded off to four decimal places; The MCS table further comprises: When a decimal appears in the target code rate, the target code rate is determined by rounding up; When a decimal occurs in the target code rate, the target code rate is determined by a rounding down manner; When a decimal appears in the target code rate, the target code rate is determined by rounding off the decimal to an integer; and if a decimal appears in the target code rate, the target code rate is maintained to one decimal place.

[0065] It should be noted that, in order to better distinguish from the above-mentioned MCS Tables 1 to 3, in the following description of the embodiments of the present application, an MCS table including MCS levels corresponding to a modulation scheme with a modulation order of 10 is referred to as a first target MCS table, and the first target MCS table satisfies at least one of the above conditions.

[0066] Here, the first target MCS table includes a first MCS level, a second MCS level, a third MCS level, a fourth MCS level, and a fifth MCS level for retransmission, which correspond to a modulation scheme with a modulation order of 10.

[0067] It should be noted that the first target MCS table includes corresponding target code rates and spectral efficiencies in the CQI table, and the CQI table refers to the CQI table including the 1024QAM modulation scheme, i.e., the CQI tables 4 to 8. Thus, the first target MCS table includes target code rates and spectral efficiencies corresponding to each CQI level in the CQI tables 4 to 8, and the first target MCS table includes target code rates and spectral efficiencies corresponding to the 1024QAM modulation scheme. For example, in order to increase the MCS level corresponding to a modulation scheme with a modulation order of 10, the first target MCS table may be designed based on the CQI table 4. Alternatively, the first target MCS table includes MCS levels corresponding to 256QAM in the first MCS table, the first MCS table being an MCS table including MCS levels corresponding to 256QAM, the first MCS table being the above-mentioned MCS table 2, and the first target MCS table may be designed based on MCS table 2 in order to increase the MCS levels corresponding to a modulation scheme with a modulation order of 10.

[0068] In one embodiment of the present application, the first target MCS table may be designed based on MCS table 2, and the first MCS level, the second MCS level, the third MCS level, the fourth MCS level and the fifth MCS level are correspondingly increased, and five MCS levels are correspondingly reduced from the original MCS table. Alternatively, the MCS levels in MCS table 2 may be selectively reduced in the following order: the MCS level corresponding to modulation order 2 is preferentially reduced, then the MCS level corresponding to modulation order 4 is reduced, and then the MCS level corresponding to modulation order 6 is reduced, or the MCS levels in MCS table 2 may be selectively reduced according to other rules. Optionally, in the embodiment of the present application, the first target MCS table is obtained by removing the MCS levels corresponding to MCS indexes of 6, 8, 10, 12 and 14 in MCS table 2, respectively, and adding MCS levels corresponding to a modulation scheme with a modulation order of 10, i.e., the first MCS level, the second MCS level, the third MCS level, the fourth MCS level and the fifth MCS level for retransmission.

[0069] Here, in the first target MCS table, the target code rates and spectral efficiencies corresponding to the first MCS level, the second MCS level, the third MCS level, and the fourth MCS level may be determined based on at least one of the conditions satisfied by the MCS table. For example, if the spectral efficiencies corresponding to the MCS levels in the first target MCS table are equally spaced, the spectral efficiencies corresponding to the four MCS levels to be added may be determined based on the spectral efficiencies between the MCS levels already determined in the MCS table 2. Furthermore, the spectral efficiencies corresponding to the first MCS level, the second MCS level, the third MCS level, and the fourth MCS level may be further held to four decimal places by rounding. Also, for example, if the target code rates corresponding to the MCS levels in the first target MCS table are equally spaced, the target code rates corresponding to the four MCS levels to be added may be determined based on the target code rates between the MCS levels already determined in the MCS table 2. Furthermore, the target code rates corresponding to the first MCS level, the second MCS level, the third MCS level, and the fourth MCS level may further satisfy that, when a decimal appears in the target code rate, the target code rate is determined by a rounding up, rounding down, or rounding off to an integer, or the target code rate is maintained to one decimal place. For example, the target code rate corresponding to the first MCS level may be an integer and may be maintained to one decimal place, or the target code rate corresponding to the first MCS level may correspond to multiple values, etc.

[0070] Optionally, a target code rate and a spectral efficiency corresponding to the first MCS level may be determined based on the above conditions, for example, the target code rate corresponding to the first MCS level is any one of 805, 806, and 805.5, and the spectral efficiency corresponding to the first MCS level is any one of 7.8613, 7.8711, and 7.8662.

[0071] Optionally, a target code rate corresponding to the second MCS level is 853, and a spectral efficiency corresponding to the second MCS level is 8.3301.

[0072] Optionally, a code rate corresponding to the third MCS level is any one of 900, 901, and 900.5, and a spectral efficiency corresponding to the third MCS level is any one of 8.7891, 8.7988, and 8.7939.

[0073] Optionally, a target code rate corresponding to the fourth MCS level is 948, and a spectral efficiency corresponding to the fourth MCS level is 9.2578.

[0074] Specifically, based on the above-mentioned selective embodiment, first target MCS tables such as MCS Tables 4 to 7 shown in the following Tables 12 to 15 can be obtained.

[0075] [Table 12]

[0076] [Table 13]

[0077] [Table 14]

[0078] [Table 15]

[0079] In the above MCS tables 4 to 7, the first MCS level corresponding to the MCS level corresponding to the modulation scheme with a modulation order of 10 corresponds to MCS index 23, the second MCS level corresponds to MCS index 24, the third MCS level corresponds to MCS index 25, the fourth MCS level corresponds to MCS index 26, and the fifth MCS level corresponds to MCS index 31. In this way, the first communication device indicates that the MCS table used for data transmission by the second communication device includes MCS tables 1 to 7, and further the channel received or transmitted by the second communication device may include an MCS level corresponding to the modulation scheme with a modulation order of 10, and further improve the modulation scheme of the communication device for receiving or transmitting the channel to improve the data throughput amount in a high signal-to-noise ratio scenario of the communication system.

[0080] As can be understood, the MCS table may be designed based on the CQI table. Furthermore, in another embodiment of the present application, a second target MCS table may be further designed based on the above CQI tables 5 to 8. It should be noted that the second target MCS table may be updated based on the first target MCS table, i.e., updated based on MCS tables 4 to 7.

[0081] Optionally, the MCS table further includes a sixth MCS level, a seventh MCS level, an eighth MCS level, and a ninth MCS level corresponding to a modulation scheme with a modulation order of 10. That is, the second target MCS table may add a sixth MCS level, a seventh MCS level, an eighth MCS level, and a ninth MCS level on top of the first target MCS table, and the second target MCS table further includes nine MCS levels corresponding to a modulation scheme with a modulation order of 10, respectively, the first MCS level, the second MCS level, the third MCS level, the fourth MCS level, the fifth MCS level, the sixth MCS level, the seventh MCS level, the eighth MCS level, and the ninth MCS level.

[0082] Here, the second target MCS table is including code rates and spectral efficiencies in the CQI table; Including an MCS level corresponding to 256QAM in a first MCS table, the first MCS table being an MCS table including an MCS level corresponding to 256QAM; The spectral efficiencies corresponding to each MCS level are equally spaced. The target code rates corresponding to each MCS level are equally spaced. The signal-to-noise ratios corresponding to each MCS level are equally spaced. The spectral efficiency is rounded off to four decimal places. The MCS table further comprises: When a decimal appears in the target code rate, the target code rate is determined by rounding up; When a decimal occurs in the target code rate, the target code rate is determined by a rounding down manner; When a decimal appears in the target code rate, the target code rate is determined by rounding off the decimal to an integer; and if a decimal appears in the target code rate, the target code rate is maintained to one decimal place.

[0083] As can be understood, the second target MCS table may be designed based on the first target MCS table, and corresponds to the above CQI tables 5 to 8, and may add a sixth MCS level, a seventh MCS level, an eighth MCS level and a ninth MCS level based on the first target MCS table, and correspondingly, reduce four MCS levels in the first target MCS table, and the reduction manner may refer to the description in the first target MCS table, and will not be described further herein. Here, the target code rates and spectral efficiencies corresponding to the added sixth MCS level, seventh MCS level, eighth MCS level and ninth MCS level are not determined based on at least one of the above conditions. For example, taking the sixth MCS level as an example, the spectral efficiency of the sixth MCS level and the spectral efficiency of the other MCS levels in the second target MCS table are equally spaced, and the spectral efficiency of the sixth MCS level is kept to four decimal places in a rounding manner; the target code rate of the sixth MCS level and the target code rates of the other MCS levels are equally spaced, and when a decimal appears in the target code rate of the sixth MCS level, the target code rate of the sixth MCS level may be determined in an integer form by rounding up, rounding down, or rounding off, or the target code rate is kept to one decimal place.

[0084] Optionally, a target code rate corresponding to the sixth MCS level is any one of 781, 783, 781.5, and 782, and a spectral efficiency corresponding to the sixth MCS level is any one of 7.627, 7.6465, 7.6318, and 7.6367.

[0085] Optionally, a target code rate corresponding to the seventh MCS level is any one of 828, 830, and 829.5, and a spectral efficiency corresponding to the seventh MCS level is any one of 8.0859, 8.1055, and 8.1006.

[0086] Optionally, a target code rate corresponding to the eighth MCS level is any one of 876, 877, and 876.5, and a spectral efficiency corresponding to the eighth MCS level is any one of 8.5547, 8.5645, and 8.5596.

[0087] Optionally, a target code rate corresponding to the ninth MCS level is any one of 924, 925, and 924.5, and a spectral efficiency corresponding to the ninth MCS level is any one of 9.0234, 9.0332, and 9.0283.

[0088] Specifically, based on the above selective embodiment, second target MCS tables such as MCS Tables 8-11 shown in Tables 16-19 can be obtained.

[0089] [Table 16]

[0090] [Table 17]

[0091] [Table 18]

[0092] [Table 19]

[0093] In the above MCS tables 8 to 11, the MCS levels corresponding to the modulation scheme with a modulation order of 10 are MCS indexes 19 to 26 and MCS index 31, respectively. In this way, the first communication device can indicate that the MCS tables used for data transmission by the second communication device include MCS tables 1 to 11, further improving the number of MCS tables, improving the selectivity and flexibility of the second communication device for the MCS levels used for channel reception or transmission, effectively improving the modulation scheme of the communication device for channel reception or transmission, and improving the data throughput amount in high signal-to-noise ratio scenarios of the communication system.

[0094] In an embodiment of the present application, the MCS table is A PDSCH of PDCCH scheduling of a first downlink control information format in which a cyclic redundancy check (CRC) scrambling is performed by a Cell Radio Network Temporary Identifier (C-RNTI) or a Configured Scheduling RNTI (CS-RNTI); A PDSCH scheduled by a PDCCH of a second DCI format that performs CRC scrambling by a C-RNTI or a CS-RNTI; and a physical uplink shared channel PUSCH scheduled by a third DCI format that performs CRC scrambling using the C-RNTI or CS-RNTI, or a grant-free PUSCH configured by RRC signaling.

[0095] In other words, the above MCS tables including MCS levels corresponding to a modulation scheme with a modulation order of 10, i.e., the above MCS tables 4 to 11, are applied to the PDSCH of PDCCH scheduling of DCI format 1_1 in which CRC scrambling is performed by C-RNTI or CS-RNTI, and / or are applied to the PDSCH of PDCCH scheduling of DCI format 1_2 in which CRC scrambling is performed by C-RNTI or CS-RNTI, and / or are applied to the PUSCH scheduled by DCI format 0_1 ​​or DCI format 0_2 in which CRC scrambling is performed by C-RNTI or CS-RNTI, or are applied to the permission-free PUSCH of RRC signaling configuration.

[0096] In an embodiment of the present application, before step 201, The method may also include receiving fourth indication information reported by the second communication device, the fourth indication information being used to indicate whether the second communication device has an ability to support 1024QAM.

[0097] That is, the first communication device first receives the fourth indication information reported by the second communication device, and if the fourth indication information indicates that the second communication device has the ability to support 1024QAM, the first communication device sends the first indication information, the second indication information and the third indication information to the second communication device, that is, indicates the MCS table to be used for data transmission by the second communication device and the CQI table to be used for CQI feedback, and notifies the second communication device of the MCS level corresponding to the channel transmitted and received by the second communication device. The second communication device has the ability to support 1024QAM, and the second communication device can use a modulation scheme and a code rate corresponding to a modulation order of 10 for the channel scheduled by it, thereby ensuring that the communication system can support a higher order modulation, and that the communication system can have a relatively high data throughput amount in a communication scenario with a high signal-to-noise ratio, and improving the transmission efficiency of the communication system.

[0098] Optionally, the fourth instruction information is: Each frequency band, A frequency band combination; The granularity of the carrier feature set is reported as either a Feature Set Per Component-carrier (FSPC) or a Feature Set Per Component-carrier (FSPC).

[0099] For example, the second communication device may report the fourth indication information by each frequency band and / or some frequency band combinations, or may report the fourth indication information by FSPC, and further inform the first communication device whether the second communication device has the ability to support 1024QAM, so that the first communication device can determine an MCS level corresponding to a channel to be scheduled for the second communication device, which is beneficial to smooth communication between the first communication device and the second communication device.

[0100] It should be noted that the execution body of the MCS indication information transmission method according to the embodiment of the present application can be an MCS indication information transmission device, or a control module for executing the MCS indication information transmission method in the MCS indication information transmission device. In the embodiment of the present application, the MCS indication information transmission device executes the MCS indication information transmission method as an example, and the MCS indication information transmission device according to the embodiment of the present application is described.

[0101] Referring to FIG. 3, FIG. 3 is a structural diagram of an MCS indication information transmission device according to an embodiment of the present application. As shown in FIG. 3, the MCS indication information transmission device 300 includes: a transmitting module 301 for transmitting first indication information, second indication information and third indication information to the second communication device when the second communication device has an ability to support 1024 quadrature amplitude modulation (QAM); Wherein, the first indication information is used to indicate a modulation coding policy (MCS) table to be used for data transmission by the second communication device, and the MCS table includes an MCS level corresponding to a modulation scheme with a modulation order of 10; the second indication information is used to indicate a CQI table used for channel quality indication CQI feedback by the second communication device, the CQI table including CQI levels corresponding to a 1024QAM modulation scheme; The third indication information is used to determine, based on the MCS table, an MCS level corresponding to a channel received or transmitted by the second communication device.

[0102] Optionally, the CQI table comprises: A CQI level corresponding to 256QAM in a first CQI table is included, and the first CQI table is a CQI table including a CQI level corresponding to 256QAM; The spectral efficiencies corresponding to each CQI level are equally spaced; and The code rates corresponding to each CQI level are equally spaced. The signal-to-noise ratios corresponding to each CQI level are equally spaced; and The spectral efficiency is rounded off to four decimal places; The CQI table further includes: When a decimal appears in the code rate, the code rate is determined by a round-up method; When a decimal appears in the code rate, the code rate is determined by a rounding down method; When a decimal appears in the code rate, the code rate is determined by rounding off to an integer; and if a decimal appears in the code rate, the code rate is held to one decimal place.

[0103] Optionally, the CQI table includes at least two CQI levels corresponding to a 1024QAM modulation format.

[0104] Optionally, the CQI table includes a first CQI level and a second CQI level corresponding to a 1024QAM modulation scheme, a code rate corresponding to the first CQI level is different from a code rate corresponding to the second CQI level, and a spectral efficiency corresponding to the first CQI level is different from a spectral efficiency corresponding to the second CQI level.

[0105] Optionally, a code rate corresponding to the first CQI level is 853, and a corresponding spectral efficiency is 8.3321.

[0106] Optionally, a code rate corresponding to the second CQI level is 948, and a corresponding spectral efficiency is 9.2578.

[0107] Optionally, the CQI table further includes a third CQI level and a fourth CQI level corresponding to a 1024QAM modulation scheme, and the third CQI level and the fourth CQI level are obtained based on the first CQI level and the second CQI level.

[0108] Optionally, a code rate corresponding to the third CQI level is any one of 805, 806, and 805.5, and a spectral efficiency corresponding to the third CQI level is any one of 7.8613, 7.8711, and 7.8662.

[0109] Optionally, a code rate corresponding to the fourth CQI level is any one of 900, 901, and 900.5, and a spectral efficiency corresponding to the fourth CQI level is any one of 8.7891, 8.7988, and 8.7939.

[0110] Optionally, the MCS table comprises: including code rates and spectral efficiencies in the CQI table; Including an MCS level corresponding to 256QAM in a first MCS table, the first MCS table being an MCS table including an MCS level corresponding to 256QAM; The spectral efficiencies corresponding to each MCS level are equally spaced. The target code rates corresponding to each MCS level are equally spaced. The signal-to-noise ratios corresponding to each MCS level are equally spaced. The spectral efficiency is rounded off to four decimal places; The MCS table further comprises: When a decimal appears in the target code rate, the target code rate is determined by rounding up; When a decimal occurs in the target code rate, the target code rate is determined by a rounding down manner; When a decimal appears in the target code rate, the target code rate is determined by rounding off the decimal to an integer; and if a decimal appears in the target code rate, the target code rate is maintained to one decimal place.

[0111] Optionally, the MCS table includes a first MCS level, a second MCS level, a third MCS level, a fourth MCS level and a fifth MCS level for retransmission, each of which corresponds to a modulation scheme with a modulation order of 10.

[0112] Optionally, a target code rate corresponding to the first MCS level is any one of 805, 806, and 805.5, and a spectral efficiency corresponding to the first MCS level is any one of 7.8613, 7.8711, and 7.8662.

[0113] Optionally, a target code rate corresponding to the second MCS level is 853, and a spectral efficiency corresponding to the second MCS level is 8.3301.

[0114] Optionally, a code rate corresponding to the third MCS level is any one of 900, 901, and 900.5, and a spectral efficiency corresponding to the third MCS level is any one of 8.7891, 8.7988, and 8.7939.

[0115] Optionally, a target code rate corresponding to the fourth MCS level is 948, and a spectral efficiency corresponding to the fourth MCS level is 9.2578.

[0116] Optionally, the MCS table further includes a sixth MCS level, a seventh MCS level, an eighth MCS level and a ninth MCS level, each of which corresponds to a modulation scheme with a modulation order of 10.

[0117] Optionally, a target code rate corresponding to the sixth MCS level is any one of 781, 783, 781.5, and 782, and a spectral efficiency corresponding to the sixth MCS level is any one of 7.627, 7.6465, 7.6318, and 7.6367.

[0118] Optionally, a target code rate corresponding to the seventh MCS level is any one of 828, 830, and 829.5, and a spectral efficiency corresponding to the seventh MCS level is any one of 8.0859, 8.1055, and 8.1006.

[0119] Optionally, a target code rate corresponding to the eighth MCS level is any one of 876, 877, and 876.5, and a spectral efficiency corresponding to the eighth MCS level is any one of 8.5547, 8.5645, and 8.5596.

[0120] Optionally, a target code rate corresponding to the ninth MCS level is any one of 924, 925, and 924.5, and a spectral efficiency corresponding to the ninth MCS level is any one of 9.0234, 9.0332, and 9.0283.

[0121] Optionally, the MCS table comprises: A physical downlink shared channel (PDSCH) scheduled by a physical downlink control channel (PDCCH) of a first downlink control information format that performs cyclic redundancy check (CRC) scrambling by a cell radio network temporary identifier (C-RNTI) or a configuration scheduling (CS-RNTI); A PDSCH scheduled by a PDCCH of a second DCI format that performs CRC scrambling by a C-RNTI or a CS-RNTI; and a physical uplink shared channel PUSCH scheduled by a third DCI format that performs CRC scrambling using the C-RNTI or CS-RNTI, or a grant-free PUSCH configured by radio resource control (RRC) signaling.

[0122] Optionally, the first indication information and the second indication information are transmitted via higher layer signaling, and the third indication information is transmitted via indication information in downlink control information (DCI).

[0123] Optionally, the MCS indication information transmission device 300: Further comprising a first receiving module for receiving fourth indication information reported by the second communication device, the fourth indication information being used to indicate whether the second communication device has the capability of supporting 1024QAM.

[0124] Optionally, the fourth instruction information is: Each frequency band, A frequency band combination; The carrier feature set FSPC is reported at one of the granularities.

[0125] It should be noted that the MCS indication information transmission device 300 according to the embodiment of the present application can realize each process realized by the embodiment of the method in FIG. 2 and achieve the same technical effects, and will not be further described here to avoid repetition.

[0126] In an embodiment of the present application, the MCS table indicated by the first instruction information at least includes an MCS level corresponding to a modulation scheme with a modulation order of 10, whereby the MCS level determined by the third instruction information may be an MCS level corresponding to a modulation scheme with a modulation order of 10; the second communication device has the ability to support 1024QAM; and the second communication device can use a modulation scheme and code rate corresponding to a modulation order of 10 for a channel scheduled by it, thereby enabling the communication system to support higher order modulation and ensuring that the communication system can have a relatively high data throughput in a communication scenario with a high signal-to-noise ratio, and improving the transmission efficiency of the communication system.

[0127] Referring to Figure 4, Figure 4 is a flowchart of another MCS indication information transmission method according to an embodiment of the present application, where the method according to the embodiment of the present application is applied to a second communication device, and the second communication device may be a terminal.

[0128] As shown in FIG. 4, the method for transmitting MCS indication information includes the following steps.

[0129] In step 401, if the second communication device has the capability of supporting 1024QAM, first indication information, second indication information and third indication information transmitted by the first communication device are received.

[0130] Wherein, the first indication information is used to indicate a modulation coding policy (MCS) table to be used for data transmission by the second communication device, and the MCS table includes an MCS level corresponding to a modulation scheme with a modulation order of 10; the second indication information is used to indicate a CQI table used for channel quality indication CQI feedback by the second communication device, the CQI table including CQI levels corresponding to a 1024QAM modulation scheme; The third indication information is used to determine, based on the MCS table, an MCS level corresponding to a channel received or transmitted by the second communication device.

[0131] Optionally, the CQI table comprises: A CQI level corresponding to 256QAM in a first CQI table is included, and the first CQI table is a CQI table including a CQI level corresponding to 256QAM; The spectral efficiencies corresponding to each CQI level are equally spaced; and The code rates corresponding to each CQI level are equally spaced. The signal-to-noise ratios corresponding to each CQI level are equally spaced; and The spectral efficiency is rounded off to four decimal places; The CQI table further includes: When a decimal appears in the code rate, the code rate is determined by a round-up method; When a decimal appears in the code rate, the code rate is determined by a rounding down method; When a decimal appears in the code rate, the code rate is determined by rounding off to an integer; and if a decimal appears in the code rate, the code rate is held to one decimal place.

[0132] Optionally, the CQI table includes at least two CQI levels corresponding to a 1024QAM modulation format.

[0133] Optionally, the CQI table includes a first CQI level and a second CQI level corresponding to a 1024QAM modulation scheme, a code rate corresponding to the first CQI level is different from a code rate corresponding to the second CQI level, and a spectral efficiency corresponding to the first CQI level is different from a spectral efficiency corresponding to the second CQI level.

[0134] Optionally, a code rate corresponding to the first CQI level is 853, and a corresponding spectral efficiency is 8.3321.

[0135] Optionally, a code rate corresponding to the second CQI level is 948, and a corresponding spectral efficiency is 9.2578.

[0136] Optionally, the CQI table further includes a third CQI level and a fourth CQI level corresponding to a 1024QAM modulation scheme, and the third CQI level and the fourth CQI level are obtained based on the first CQI level and the second CQI level.

[0137] Optionally, a code rate corresponding to the third CQI level is any one of 805, 806, and 805.5, and a spectral efficiency corresponding to the third CQI level is any one of 7.8613, 7.8711, and 7.8662.

[0138] Optionally, a code rate corresponding to the fourth CQI level is any one of 900, 901, and 900.5, and a spectral efficiency corresponding to the fourth CQI level is any one of 8.7891, 8.7988, and 8.7939.

[0139] Optionally, the MCS table comprises: including code rates and spectral efficiencies in the CQI table; Including an MCS level corresponding to 256QAM in a first MCS table, the first MCS table being an MCS table including an MCS level corresponding to 256QAM; The spectral efficiencies corresponding to each MCS level are equally spaced. The target code rates corresponding to each MCS level are equally spaced. The signal-to-noise ratios corresponding to each MCS level are equally spaced. The spectral efficiency is rounded off to four decimal places; The MCS table further comprises: When a decimal appears in the target code rate, the target code rate is determined by rounding up; When a decimal occurs in the target code rate, the target code rate is determined by a rounding down manner; When a decimal appears in the target code rate, the target code rate is determined by rounding off the decimal to an integer; and if a decimal appears in the target code rate, the target code rate is maintained to one decimal place.

[0140] Optionally, the MCS table includes a first MCS level, a second MCS level, a third MCS level, a fourth MCS level and a fifth MCS level for retransmission, each of which corresponds to a modulation scheme with a modulation order of 10.

[0141] Optionally, a target code rate corresponding to the first MCS level is any one of 805, 806, and 805.5, and a spectral efficiency corresponding to the first MCS level is any one of 7.8613, 7.8711, and 7.8662.

[0142] Optionally, a target code rate corresponding to the second MCS level is 853, and a spectral efficiency corresponding to the second MCS level is 8.3301.

[0143] Optionally, a code rate corresponding to the third MCS level is any one of 900, 901, and 900.5, and a spectral efficiency corresponding to the third MCS level is any one of 8.7891, 8.7988, and 8.7939.

[0144] Optionally, a target code rate corresponding to the fourth MCS level is 948, and a spectral efficiency corresponding to the fourth MCS level is 9.2578.

[0145] Optionally, the MCS table further includes a sixth MCS level, a seventh MCS level, an eighth MCS level and a ninth MCS level, each of which corresponds to a modulation scheme with a modulation order of 10.

[0146] Optionally, a target code rate corresponding to the sixth MCS level is any one of 781, 783, 781.5, and 782, and a spectral efficiency corresponding to the sixth MCS level is any one of 7.627, 7.6465, 7.6318, and 7.6367.

[0147] Optionally, a target code rate corresponding to the seventh MCS level is any one of 828, 830, and 829.5, and a spectral efficiency corresponding to the seventh MCS level is any one of 8.0859, 8.1055, and 8.1006.

[0148] Optionally, a target code rate corresponding to the eighth MCS level is any one of 876, 877, and 876.5, and a spectral efficiency corresponding to the eighth MCS level is any one of 8.5547, 8.5645, and 8.5596.

[0149] Optionally, a target code rate corresponding to the ninth MCS level is any one of 924, 925, and 924.5, and a spectral efficiency corresponding to the ninth MCS level is any one of 9.0234, 9.0332, and 9.0283.

[0150] Optionally, the MCS table comprises: A physical downlink shared channel (PDSCH) scheduled by a physical downlink control channel (PDCCH) of a first downlink control information format that performs cyclic redundancy check (CRC) scrambling by a cell radio network temporary identifier (C-RNTI) or a configuration scheduling (CS-RNTI); A PDSCH scheduled by a PDCCH of a second DCI format that performs CRC scrambling by a C-RNTI or a CS-RNTI; and a physical uplink shared channel PUSCH scheduled by a third DCI format that performs CRC scrambling using the C-RNTI or CS-RNTI, or a grant-free PUSCH configured by radio resource control (RRC) signaling.

[0151] Optionally, the first indication information and the second indication information are transmitted via higher layer signaling, and the third indication information is transmitted via indication information in downlink control information (DCI).

[0152] Optionally, the method further comprises: The method further includes sending fourth indication information to the first communication device, the fourth indication information being used to indicate whether the second communication device has the capability of supporting 1024QAM.

[0153] Optionally, the fourth instruction information is: Each frequency band, A frequency band combination; The carrier feature set FSPC is reported at one of the granularities.

[0154] It should be noted that for a specific implementation process and a specific description of related technical features of the method for transmitting MCS indication information implemented by the second communication device according to the embodiment of the present application, reference may be made to the description in the embodiment of the method in Figure 2. In order to avoid repetition, no further description will be given in the embodiment of the present application.

[0155] In an embodiment of the present application, the MCS table indicated by the first instruction information at least includes an MCS level corresponding to a modulation scheme with a modulation order of 10, whereby the MCS level determined by the third instruction information may be an MCS level corresponding to a modulation scheme with a modulation order of 10; the second communication device has the ability to support 1024QAM; and the second communication device can use a modulation scheme and code rate corresponding to a modulation order of 10 for a channel scheduled by it, thereby enabling the communication system to support higher order modulation and ensuring that the communication system can have a relatively high data throughput in a communication scenario with a high signal-to-noise ratio, and improving the transmission efficiency of the communication system.

[0156] It should be noted that the execution body of the MCS indication information transmission method according to the embodiment of the present application may be an MCS indication information transmission device, or may be a control module for executing the MCS indication information transmission method in the MCS indication information transmission device. In the embodiment of the present application, the MCS indication information transmission device executes the MCS indication information transmission method as an example, and the MCS indication information transmission device according to the embodiment of the present application is described.

[0157] Referring to FIG. 5, FIG. 5 is a structural diagram of another MCS indication information transmission device according to an embodiment of the present application. As shown in FIG. 5, the MCS indication information transmission device 500 includes: When the MCS indication information transmission device has the ability to support 1024 quadrature amplitude modulation (QAM), the device includes a receiving module 501 for receiving the first indication information, the second indication information and the third indication information transmitted by the first communication device; Wherein, the first indication information is used to indicate a modulation coding policy (MCS) table used for data transmission by the MCS indication information transmission device, and the MCS table includes an MCS level corresponding to a modulation scheme with a modulation order of 10; the second indication information is used to indicate a CQI table used for channel quality indication CQI feedback by the MCS indication information transmission device, the CQI table including CQI levels corresponding to a 1024QAM modulation scheme; The third indication information determines an MCS level corresponding to a channel that the MCS indication information transmission device receives or transmits based on the MCS table.

[0158] Optionally, the CQI table comprises: A CQI level corresponding to 256QAM in a first CQI table is included, and the first CQI table is a CQI table including a CQI level corresponding to 256QAM; The spectral efficiencies corresponding to each CQI level are equally spaced; and The code rates corresponding to each CQI level are equally spaced. The signal-to-noise ratios corresponding to each CQI level are equally spaced; and The spectral efficiency is rounded off to four decimal places; The CQI table further includes: When a decimal appears in the code rate, the code rate is determined by a round-up method; When a decimal appears in the code rate, the code rate is determined by a rounding down method; When a decimal appears in the code rate, the code rate is determined by rounding off to an integer; and if a decimal appears in the code rate, the code rate is held to one decimal place.

[0159] Optionally, the CQI table includes at least two CQI levels corresponding to a 1024QAM modulation format.

[0160] Optionally, the CQI table includes a first CQI level and a second CQI level corresponding to a 1024QAM modulation scheme, a code rate corresponding to the first CQI level is different from a code rate corresponding to the second CQI level, and a spectral efficiency corresponding to the first CQI level is different from a spectral efficiency corresponding to the second CQI level.

[0161] Optionally, a code rate corresponding to the first CQI level is 853, and a corresponding spectral efficiency is 8.3321.

[0162] Optionally, a code rate corresponding to the second CQI level is 948, and a corresponding spectral efficiency is 9.2578.

[0163] Optionally, the CQI table further includes a third CQI level and a fourth CQI level corresponding to a 1024QAM modulation scheme, and the third CQI level and the fourth CQI level are obtained based on the first CQI level and the second CQI level.

[0164] Optionally, a code rate corresponding to the third CQI level is any one of 805, 806, and 805.5, and a spectral efficiency corresponding to the third CQI level is any one of 7.8613, 7.8711, and 7.8662.

[0165] Optionally, a code rate corresponding to the fourth CQI level is any one of 900, 901, and 900.5, and a spectral efficiency corresponding to the fourth CQI level is any one of 8.7891, 8.7988, and 8.7939.

[0166] Optionally, the MCS table comprises: including code rates and spectral efficiencies in the CQI table; Including an MCS level corresponding to 256QAM in a first MCS table, the first MCS table being an MCS table including an MCS level corresponding to 256QAM; The spectral efficiencies corresponding to each MCS level are equally spaced. The target code rates corresponding to each MCS level are equally spaced. The signal-to-noise ratios corresponding to each MCS level are equally spaced. The spectral efficiency is rounded off to four decimal places; The MCS table further comprises: When a decimal appears in the target code rate, the target code rate is determined by rounding up; When a decimal occurs in the target code rate, the target code rate is determined by a rounding down manner; When a decimal appears in the target code rate, the target code rate is determined by rounding off the decimal to an integer; and if a decimal appears in the target code rate, the target code rate is maintained to one decimal place.

[0167] Optionally, the MCS table includes a first MCS level, a second MCS level, a third MCS level, a fourth MCS level and a fifth MCS level for retransmission, each of which corresponds to a modulation scheme with a modulation order of 10.

[0168] Optionally, a target code rate corresponding to the first MCS level is any one of 805, 806, and 805.5, and a spectral efficiency corresponding to the first MCS level is any one of 7.8613, 7.8711, and 7.8662.

[0169] Optionally, a target code rate corresponding to the second MCS level is 853, and a spectral efficiency corresponding to the second MCS level is 8.3301.

[0170] Optionally, a code rate corresponding to the third MCS level is any one of 900, 901, and 900.5, and a spectral efficiency corresponding to the third MCS level is any one of 8.7891, 8.7988, and 8.7939.

[0171] Optionally, a target code rate corresponding to the fourth MCS level is 948, and a spectral efficiency corresponding to the fourth MCS level is 9.2578.

[0172] Optionally, the MCS table further includes a sixth MCS level, a seventh MCS level, an eighth MCS level and a ninth MCS level, each of which corresponds to a modulation scheme with a modulation order of 10.

[0173] Optionally, a target code rate corresponding to the sixth MCS level is any one of 781, 783, 781.5, and 782, and a spectral efficiency corresponding to the sixth MCS level is any one of 7.627, 7.6465, 7.6318, and 7.6367.

[0174] Optionally, a target code rate corresponding to the seventh MCS level is any one of 828, 830, and 829.5, and a spectral efficiency corresponding to the seventh MCS level is any one of 8.0859, 8.1055, and 8.1006.

[0175] Optionally, a target code rate corresponding to the eighth MCS level is any one of 876, 877, and 876.5, and a spectral efficiency corresponding to the eighth MCS level is any one of 8.5547, 8.5645, and 8.5596.

[0176] Optionally, a target code rate corresponding to the ninth MCS level is any one of 924, 925, and 924.5, and a spectral efficiency corresponding to the ninth MCS level is any one of 9.0234, 9.0332, and 9.0283.

[0177] Optionally, the MCS table comprises: A physical downlink shared channel (PDSCH) scheduled by a physical downlink control channel (PDCCH) of a first downlink control information format that performs cyclic redundancy check (CRC) scrambling by a cell radio network temporary identifier (C-RNTI) or a configuration scheduling (CS-RNTI); A PDSCH scheduled by a PDCCH of a second DCI format that performs CRC scrambling by a C-RNTI or a CS-RNTI; and a physical uplink shared channel PUSCH scheduled by a third DCI format that performs CRC scrambling using the C-RNTI or CS-RNTI, or a grant-free PUSCH configured by radio resource control (RRC) signaling.

[0178] Optionally, the first indication information and the second indication information are transmitted via higher layer signaling, and the third indication information is transmitted via indication information in downlink control information (DCI).

[0179] Optionally, the MCS indication information transmission device 500: Further comprising a first sending module for sending fourth indication information to the first communication device, the fourth indication information being used to indicate whether the MCS indication information transmission device has the capability of supporting 1024QAM.

[0180] Optionally, the fourth instruction information is: Each frequency band, A frequency band combination; The carrier feature set FSPC is reported at one of the granularities.

[0181] In an embodiment of the present application, the MCS indication information transmission device 500 has the ability to support 1024QAM, and the MCS indication information transmission device 500 can use a modulation scheme and code rate corresponding to a modulation order of 10 for the channel it schedules, thereby enabling the communication system to support higher order modulation, ensuring that the communication system can have a relatively high data throughput in a communication scenario with a high signal-to-noise ratio, and improving the transmission efficiency of the communication system.

[0182] The MCS indication information transmission device 500 in the embodiment of the present application may be a device, or may be a component, integrated circuit, or chip in a terminal. The device may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), a deposit payment machine, or a self-service machine, and the embodiment of the present application is not specifically limited thereto.

[0183] The MCS indication information transmission device 500 in the embodiment of the present application may be a device having an operating system, which may be an Android operating system, an ios operating system, or other possible operating systems, and the embodiment of the present application is not specifically limited.

[0184] The MCS indication information transmission device 500 according to the embodiment of the present application can realize each process realized by the embodiment of the method in FIG. 4 and achieve the same technical effects, and will not be described further here in order to avoid repetition.

[0185] Optionally, as shown in Fig. 6, the embodiment of the present application further provides a communication device 600, including a processor 601, a memory 602, and a program or instruction stored in the memory 602 and operable on the processor 601, for example, when the communication device 600 is a first communication device, the program or instruction can be executed by the processor 601 to realize each process of the method embodiment in Fig. 1 and achieve the same technical effect. When the communication device 600 is a second communication device, the program or instruction can be executed by the processor 601 to realize each process of the method embodiment in Fig. 2 and achieve the same technical effect. In order to avoid repetition, no further description will be given here.

[0186] FIG. 7 is a hardware structural schematic diagram of a terminal implementing an embodiment of the present application.

[0187] The terminal 700 includes at least some of the following components, but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710.

[0188] As can be understood by those skilled in the art, the terminal 700 may further include a power source (e.g., a battery) for powering each component, and the power source may be logically connected to the processor 710 by a power management system, so that the power management system can realize functions such as charge / discharge management and power consumption management. The terminal structure shown in Figure 7 does not constitute a limitation on the terminal, and the terminal may include more or less components than the number of components shown, or a combination of some components, or a different arrangement of components, and will not be further described here.

[0189] It should be understood that in the embodiment of the present application, the input unit 704 may include a graphics processor (Graphics Processing Unit, GPU) 7041 and a microphone 7042, and the graphics processor 7041 processes image data of still or video images obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be arranged in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include two parts: a touch detection device and a touch controller. The other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control buttons, switch buttons, etc.), a trackball, a mouse, and a control lever, which will not be described further herein.

[0190] In the embodiment of the present application, the radio frequency unit 701 receives downlink data from the network side device, and then causes the processor 710 to process the data, and transmits uplink data to the network side device. In general, the radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0191] The memory 709 may be used to store software programs or instructions and various data. The memory 709 may mainly include a program or instruction storage area and a data storage area, where the program or instruction storage area can store an operating system, an application program or instruction required for at least one function (e.g., a sound playback function, an image playback function, etc.), etc. The memory 709 may include a high-speed random access memory or a non-volatile memory, where the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. For example, the memory 709 may be at least one magnetic disk memory device, a flash memory device, or other non-volatile solid-state memory device.

[0192] The processor 710 may include one or more processing units. Optionally, the processor 710 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, and application programs or instructions, and the modem processor mainly processes wireless communication, such as a baseband processor. As can be understood, the modem processor does not have to be integrated into the processor 710.

[0193] In an embodiment of the present application, the terminal 700 can be a second communication device. If the terminal 700 has the ability to support 1024QAM, the radio frequency unit 701 is used to receive the first indication information, the second indication information and the third indication information sent by the first communication device; Wherein, the first indication information is used to indicate a modulation coding policy (MCS) table to be used for data transmission by the terminal 700, and the MCS table includes an MCS level corresponding to a modulation scheme with a modulation order of 10; the second indication information is used to indicate a CQI table to be used for channel quality indication CQI feedback by the terminal 700, the CQI table including CQI levels corresponding to a 1024QAM modulation scheme; The third instruction information is used to determine an MCS level corresponding to a channel that the terminal 700 receives or transmits based on the MCS table.

[0194] Optionally, the CQI table comprises: A CQI level corresponding to 256QAM in a first CQI table is included, and the first CQI table is a CQI table including a CQI level corresponding to 256QAM; The spectral efficiencies corresponding to each CQI level are equally spaced; and The code rates corresponding to each CQI level are equally spaced. The signal-to-noise ratios corresponding to each CQI level are equally spaced; and The spectral efficiency is rounded off to four decimal places; The CQI table further includes: When a decimal appears in the code rate, the code rate is determined by a round-up method; When a decimal appears in the code rate, the code rate is determined by a rounding down method; When a decimal appears in the code rate, the code rate is determined by rounding off to an integer; and if a decimal appears in the code rate, the code rate is held to one decimal place.

[0195] Optionally, the CQI table includes at least two CQI levels corresponding to a 1024QAM modulation format.

[0196] Optionally, the CQI table includes a first CQI level and a second CQI level corresponding to a 1024QAM modulation scheme, a code rate corresponding to the first CQI level is different from a code rate corresponding to the second CQI level, and a spectral efficiency corresponding to the first CQI level is different from a spectral efficiency corresponding to the second CQI level.

[0197] Optionally, a code rate corresponding to the first CQI level is 853, and a corresponding spectral efficiency is 8.3321.

[0198] Optionally, a code rate corresponding to the second CQI level is 948, and a corresponding spectral efficiency is 9.2578.

[0199] Optionally, the CQI table further includes a third CQI level and a fourth CQI level corresponding to a 1024QAM modulation scheme, and the third CQI level and the fourth CQI level are obtained based on the first CQI level and the second CQI level.

[0200] Optionally, a code rate corresponding to the third CQI level is any one of 805, 806, and 805.5, and a spectral efficiency corresponding to the third CQI level is any one of 7.8613, 7.8711, and 7.8662.

[0201] Optionally, a code rate corresponding to the fourth CQI level is any one of 900, 901, and 900.5, and a spectral efficiency corresponding to the fourth CQI level is any one of 8.7891, 8.7988, and 8.7939.

[0202] Optionally, the MCS table comprises: including code rates and spectral efficiencies in the CQI table; Including an MCS level corresponding to 256QAM in a first MCS table, the first MCS table being an MCS table including an MCS level corresponding to 256QAM; The spectral efficiencies corresponding to each MCS level are equally spaced. The target code rates corresponding to each MCS level are equally spaced. The signal-to-noise ratios corresponding to each MCS level are equally spaced. The spectral efficiency is rounded off to four decimal places; The MCS table further comprises: When a decimal appears in the target code rate, the target code rate is determined by rounding up; When a decimal occurs in the target code rate, the target code rate is determined by a rounding down manner; When a decimal appears in the target code rate, the target code rate is determined by rounding off the decimal to an integer; and if a decimal appears in the target code rate, the target code rate is maintained to one decimal place.

[0203] Optionally, the MCS table includes a first MCS level, a second MCS level, a third MCS level, a fourth MCS level and a fifth MCS level for retransmission, each of which corresponds to a modulation scheme with a modulation order of 10.

[0204] Optionally, a target code rate corresponding to the first MCS level is any one of 805, 806, and 805.5, and a spectral efficiency corresponding to the first MCS level is any one of 7.8613, 7.8711, and 7.8662.

[0205] Optionally, a target code rate corresponding to the second MCS level is 853, and a spectral efficiency corresponding to the second MCS level is 8.3301.

[0206] Optionally, a code rate corresponding to the third MCS level is any one of 900, 901, and 900.5, and a spectral efficiency corresponding to the third MCS level is any one of 8.7891, 8.7988, and 8.7939.

[0207] Optionally, a target code rate corresponding to the fourth MCS level is 948, and a spectral efficiency corresponding to the fourth MCS level is 9.2578.

[0208] Optionally, the MCS table further includes a sixth MCS level, a seventh MCS level, an eighth MCS level and a ninth MCS level, each of which corresponds to a modulation scheme with a modulation order of 10.

[0209] Optionally, a target code rate corresponding to the sixth MCS level is any one of 781, 783, 781.5, and 782, and a spectral efficiency corresponding to the sixth MCS level is any one of 7.627, 7.6465, 7.6318, and 7.6367.

[0210] Optionally, a target code rate corresponding to the seventh MCS level is any one of 828, 830, and 829.5, and a spectral efficiency corresponding to the seventh MCS level is any one of 8.0859, 8.1055, and 8.1006.

[0211] Optionally, a target code rate corresponding to the eighth MCS level is any one of 876, 877, and 876.5, and a spectral efficiency corresponding to the eighth MCS level is any one of 8.5547, 8.5645, and 8.5596.

[0212] Optionally, a target code rate corresponding to the ninth MCS level is any one of 924, 925, and 924.5, and a spectral efficiency corresponding to the ninth MCS level is any one of 9.0234, 9.0332, and 9.0283.

[0213] Optionally, the MCS table comprises: A physical downlink shared channel (PDSCH) scheduled by a physical downlink control channel (PDCCH) of a first downlink control information format that performs cyclic redundancy check (CRC) scrambling by a cell radio network temporary identifier (C-RNTI) or a configuration scheduling (CS-RNTI); A PDSCH scheduled by a PDCCH of a second DCI format that performs CRC scrambling by a C-RNTI or a CS-RNTI; and a physical uplink shared channel PUSCH scheduled by a third DCI format that performs CRC scrambling using the C-RNTI or CS-RNTI, or a grant-free PUSCH configured by radio resource control (RRC) signaling.

[0214] Optionally, the first indication information and the second indication information are transmitted via higher layer signaling, and the third indication information is transmitted via indication information in downlink control information (DCI).

[0215] Optionally, the radio frequency unit 701 is further used for sending fourth indication information to the first communication device, and the fourth indication information is used for indicating whether the MCS indication information transmission device has the ability to support 1024QAM.

[0216] Optionally, the fourth instruction information is: Each frequency band, A frequency band combination; The carrier feature set FSPC is reported at one of the granularities.

[0217] In an embodiment of the present application, if the terminal 700 has the capability of supporting 1024QAM, it can use a modulation scheme and code rate corresponding to a modulation order of 10 for the channel it schedules, thereby enabling the communication system to support higher order modulation, ensuring that the communication system can have a relatively high data throughput in a high signal-to-noise ratio communication scenario, and improving the transmission efficiency of the communication system.

[0218] Specifically, an embodiment of the present application further provides a network side device. As shown in Fig. 8, the network side device 800 includes an antenna 81, a radio frequency device 82, and a baseband device 83. The antenna 81 and the radio frequency device 82 are connected. In the uplink direction, the radio frequency device 82 receives information through the antenna 81, and transmits the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes the information to be transmitted and transmits it to the radio frequency device 82, and the radio frequency device 82 processes the received information and then sends it out through the antenna 81.

[0219] The methods performed by the network side equipment in the above embodiments may be implemented in a baseband device 83 , which includes a processor 84 and a memory 85 .

[0220] The baseband device 83 may include, for example, at least one baseband board, on which multiple chips are installed, and as shown in FIG. 8, one of the chips is, for example, a processor 84, which is connected to a memory 85, and calls the program in the memory 85 to perform the network side equipment operation shown in the above embodiment of the method.

[0221] The baseband device 83 may further include a network interface 86, which is used to exchange information with the radio frequency device 82, and which is, for example, a common public radio interface (abbreviated as CPRI).

[0222] Specifically, the network side equipment of the embodiment of the present invention further includes instructions or programs stored in memory 85 and capable of running on processor 84, and processor 84 can call the instructions or programs in memory 85 to execute the method performed by each module shown in FIG. 3 and achieve the same technical effect, which will not be described further here in order to avoid repetition.

[0223] The embodiment of the present application further provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the process of the method embodiment in Fig. 2 above is realized, or the process of the method embodiment in Fig. 4 above is realized, and the same technical effect can be achieved. In order to avoid repetition, no further description will be given here.

[0224] Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0225] The embodiment of the present application further provides a chip, the chip including a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or instruction of a network side device, to realize each process of the embodiment of the method in Fig. 2 above, or to realize each process of the embodiment of the method in Fig. 4 above, and can achieve the same technical effect. In order to avoid repetition, no further description will be given here.

[0226] It should be understood that the chips referred to in the embodiments of the present application may be referred to as system level chips, system chips, chip systems, or systems on chips.

[0227] It should be explained that in this specification, the terms "comprise", "include", or any other variants thereof are intended to cover the non-exclusive "comprise", whereby a process, method, article, or apparatus that includes a set of elements includes not only those elements, but also other elements not expressly listed or inherent to such process, method, article, or apparatus. In the absence of further limitations, an element limited by the phrase "comprises a" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes this element. It should be pointed out that the scope of the method and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may include performing functions in an essentially simultaneous manner or in reverse order based on the functions involved, for example, the described method can be performed in a different order than described, and various steps can be added, omitted, or combined. Also, features described with reference to some examples can be combined in other examples.

[0228] From the above description of the embodiments, it is clear to those skilled in the art that the methods of the above embodiments can be realized in the form of software and a necessary general-purpose hardware platform. Of course, they can also be realized in hardware, but in many cases the former is a more preferred embodiment. Based on this understanding, the technical solution of the present application may be substantially or in part embodied in the form of a software product. The computer software product is stored in a storage medium (e.g., ROM / RAM, magnetic disk, optical disk) and includes some instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0229] The above describes the embodiments of the present application in conjunction with the drawings, but the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not limiting. Those skilled in the art can take the suggestions of this application and make many forms without departing from the spirit and scope of the claims of this application, all of which belong to the protection scope of this application.

Claims

1. A method for transmitting modulation and coding scheme (MCS) indication information performed by a first communication device, comprising: transmitting first indication information, second indication information and third indication information to the second communication device when the second communication device has a capability of supporting 1024 quadrature amplitude modulation (QAM); Wherein, the first communication device is a network side device, the second communication device is a terminal, the first indication information is used to indicate a modulation coding policy (MCS) table used for data transmission by the second communication device, and the MCS table includes an MCS level corresponding to a modulation scheme with a modulation order of 10; the second indication information is used to indicate a CQI table to be used for channel quality indication CQI feedback by the second communication device, the CQI table including CQI levels corresponding to a 1024QAM modulation scheme; The third instruction information is used to determine an MCS level corresponding to a channel to be received or transmitted by the second communication device based on the MCS table; the MCS table includes a first MCS level, a second MCS level, a third MCS level, a fourth MCS level, and a fifth MCS level for retransmission, each of which corresponds to a modulation scheme with a modulation order of 10; a target code rate corresponding to the first MCS level is 805.5, and a spectral efficiency corresponding to the first MCS level is 7.8662; a target code rate corresponding to the second MCS level is 853, and a spectral efficiency corresponding to the second MCS level is 8.3301; a code rate corresponding to the third MCS level is 900.5, and a spectral efficiency corresponding to the third MCS level is 8.7939; A modulation and coding scheme MCS indication information transmission method, wherein a target code rate corresponding to the fourth MCS level is 948, and a spectral efficiency corresponding to the fourth MCS level is 9.2578.

2. The MCS table includes: including code rates and spectral efficiencies in the CQI table; Including an MCS level corresponding to 256QAM in a first MCS table, the first MCS table being an MCS table including an MCS level corresponding to 256QAM; The spectral efficiencies corresponding to each MCS level are equally spaced; and The target code rates corresponding to each MCS level are equally spaced; and The signal-to-noise ratios corresponding to each MCS level are equally spaced; and 2. The method of claim 1 , wherein the spectral efficiency is rounded down to four decimal places.

3. The MCS table includes: A physical downlink shared channel PDSCH scheduled by a physical downlink control channel PDCCH of a first downlink control information format that performs cyclic redundancy check (CRC) scrambling by a cell radio network temporary identifier C-RNTI or a configuration scheduling CS-RNTI; A PDSCH scheduled by a PDCCH of a second DCI format that performs CRC scrambling by a C-RNTI or a CS-RNTI; The method according to claim 1, which is applied to at least one of a physical uplink shared channel (PUSH) scheduled by a third DCI format that performs CRC scrambling by a C-RNTI or a CS-RNTI, or a grant-free PUSH configured by radio resource control (RRC) signaling.

4. The method according to claim 1 , wherein the first indication information and the second indication information are transmitted via higher layer signaling, and the third indication information is transmitted via indication information in downlink control information (DCI).

5. The MCS indication information transmission method includes:

2. The method of claim 1, further comprising receiving fourth indication information reported by the second communication device, the fourth indication information being used to indicate whether the second communication device has an ability to support 1024QAM.

6. 3. The method of claim 2, wherein the MCS table further includes a sixth MCS level, a seventh MCS level, an eighth MCS level and a ninth MCS level corresponding to a modulation scheme with a modulation order of 10.

7. A method for transmitting modulation and coding scheme (MCS) indication information performed by a second communication device, comprising: receiving first indication information, second indication information and third indication information transmitted by a first communication device when the second communication device has a capability of supporting 1024 quadrature amplitude modulation (QAM); Wherein, the first communication device is a network side device, the second communication device is a terminal, the first indication information is used to indicate a modulation coding policy (MCS) table used for data transmission by the second communication device, and the MCS table includes an MCS level corresponding to a modulation scheme with a modulation order of 10; the second indication information is used to indicate a CQI table to be used for channel quality indication CQI feedback by the second communication device, the CQI table including CQI levels corresponding to a 1024QAM modulation scheme; The third instruction information is used to determine an MCS level corresponding to a channel to be received or transmitted by the second communication device based on the MCS table; the MCS table includes a first MCS level, a second MCS level, a third MCS level, a fourth MCS level, and a fifth MCS level for retransmission, each of which corresponds to a modulation scheme with a modulation order of 10; a target code rate corresponding to the first MCS level is 805.5, and a spectral efficiency corresponding to the first MCS level is 7.8662; a target code rate corresponding to the second MCS level is 853, and a spectral efficiency corresponding to the second MCS level is 8.3301; a code rate corresponding to the third MCS level is 900.5, and a spectral efficiency corresponding to the third MCS level is 8.7939; A modulation and coding scheme MCS indication information transmission method, wherein a target code rate corresponding to the fourth MCS level is 948, and a spectral efficiency corresponding to the fourth MCS level is 9.2578.

8. The MCS table includes: including code rates and spectral efficiencies in the CQI table; Including an MCS level corresponding to 256QAM in a first MCS table, the first MCS table being an MCS table including an MCS level corresponding to 256QAM; The spectral efficiencies corresponding to each MCS level are equally spaced; and The target code rates corresponding to each MCS level are equally spaced; and The signal-to-noise ratios corresponding to each MCS level are equally spaced; and 8. The method of claim 7, wherein the spectral efficiency is rounded down to four decimal places.

9. The MCS table includes: A physical downlink shared channel PDSCH scheduled by a physical downlink control channel PDCCH of a first downlink control information format that performs cyclic redundancy check (CRC) scrambling by a cell radio network temporary identifier C-RNTI or a configuration scheduling CS-RNTI; A PDSCH scheduled by a PDCCH of a second DCI format that performs CRC scrambling by a C-RNTI or a CS-RNTI; The method according to claim 7, applied to at least one of a physical uplink shared channel PUSH scheduled by a third DCI format that performs CRC scrambling by a C-RNTI or a CS-RNTI, or a grant-free PUSH configured by radio resource control (RRC) signaling.

10. The method according to claim 7, wherein the first indication information and the second indication information are transmitted via higher layer signaling, and the third indication information is transmitted via indication information in downlink control information (DCI).

11. The MCS indication information transmission method includes:

8. The method of claim 7, further comprising: sending fourth indication information to the first communication device, the fourth indication information being used to indicate whether the second communication device has an ability to support 1024QAM.

12. The fourth instruction information is Each frequency band, A frequency band combination; The method of claim 11 , wherein the carrier feature set (FSPC) is reported at a granularity of one of:

13. 9. The method of claim 8, wherein the MCS table further includes a sixth MCS level, a seventh MCS level, an eighth MCS level and a ninth MCS level corresponding to a modulation scheme with a modulation order of 10.

14. A communications device comprising a processor, a memory, and a program or instruction stored in the memory and operable on the processor, the communications device implementing the steps of the MCS indication information transmission method according to any one of claims 1 to 6, or implementing the steps of the MCS indication information transmission method according to any one of claims 7 to 13, when the program or instruction is executed by the processor.

15. A computer program product, the computer program product being stored in a non-volatile storage medium, the computer program product being executed by at least one processor to implement the steps of the MCS indication information transmission method according to any one of claims 1 to 6, or the computer program product being executed to implement the steps of the MCS indication information transmission method according to any one of claims 7 to 13.

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