Modulation and coding scheme (MCS) indication information transmission method, device, and communication equipment

Abstract

The present application discloses an MCS indication information transmission method, apparatus and communication equipment, which belongs to the field of communication technology. When the MCS indication information transmission method is executed by a first communication device, it includes: when the second communication device has the ability to support 1024QAM, sending first indication information, second indication information and third indication information to the second communication device; wherein, the first indication information is used to indicate the MCS table used by the second communication device for data transmission, and the MCS table includes the MCS level corresponding to the modulation mode with a modulation order of 10; the second indication information is used to indicate the CQI table used by the second communication device for CQI feedback, and the CQI table includes the CQI level corresponding to the 1024QAM modulation mode; the third indication information is used to determine the MCS level corresponding to the channel received or sent by the second communication device according to the MCS table. The present application can improve the data throughput of the communication system in a high signal-to-noise ratio communication scenario.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a method, apparatus and communication equipment for transmitting MCS indication information. Background Art

[0002] Currently, in communication systems (such as New Radio (NR) systems), both downlink and uplink channel services use Adaptive Modulation and Coding (AMC) technology. This technology determines the modulation method and code rate based on channel conditions to improve the system's spectral efficiency. However, because current NR systems support up to 256QAM modulation, data throughput is low in high signal-to-noise ratio (SNR) communication scenarios, affecting the communication efficiency of the communication system. Summary of the Invention

[0003] The purpose 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 of a communication system in a high signal-to-noise ratio communication scenario.

[0004] In a first aspect, a method for transmitting MCS indication information is provided, which is performed by a first communication device and includes:

[0005] When the second communication device has the capability of supporting 1024 quadrature amplitude modulation (QAM), sending first indication information, second indication information, and third indication information to the second communication device;

[0006] The first indication information is used to indicate a modulation and coding strategy (MCS) table used by the second communication device for data transmission, wherein the MCS table includes an MCS level corresponding to a modulation mode with a modulation order of 10;

[0007] The second indication information is used to indicate a CQI table used by the second communication device for channel state information CQI feedback, where the CQI table includes a CQI level corresponding to a 1024QAM modulation mode;

[0008] The third indication information is used to determine, according to the MCS table, an MCS level corresponding to a channel received or sent by the second communication device.

[0009] In a second aspect, a method for transmitting MCS indication information is provided, which is performed by a second communication device and includes:

[0010] When the second communication device has a capability of supporting 1024 quadrature amplitude modulation (QAM), receiving first indication information, second indication information, and third indication information sent by the first communication device;

[0011] The first indication information is used to indicate a modulation and coding strategy (MCS) table used by the second communication device for data transmission, wherein the MCS table includes an MCS level corresponding to a modulation mode with a modulation order of 10;

[0012] The second indication information is used to indicate a CQI table used by the second communication device for channel quality indication CQI feedback, where the CQI table includes a CQI level corresponding to a 1024QAM modulation mode;

[0013] The third indication information is used to determine, according to the MCS table, an MCS level corresponding to a channel received or sent by the second communication device.

[0014] In a third aspect, an MCS indication information transmission device is provided, including:

[0015] a sending module, configured to send 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);

[0016] The first indication information is used to indicate a modulation and coding strategy (MCS) table used by the second communication device for data transmission, wherein the MCS table includes an MCS level corresponding to a modulation mode with a modulation order of 10;

[0017] The second indication information is used to indicate a CQI table used by the second communication device for channel quality indication CQI feedback, where the CQI table includes a CQI level corresponding to a 1024QAM modulation mode;

[0018] The third indication information is used to determine, according to the MCS table, an MCS level corresponding to a channel received or sent by the second communication device.

[0019] In a third aspect, an MCS indication information transmission device is provided, including:

[0020] A receiving module, configured to receive first indication information, second indication information, and third indication information sent by a first communication device when the MCS indication information transmission device has a capability of supporting 1024 quadrature amplitude modulation (QAM);

[0021] The first indication information is used to indicate a modulation and coding strategy (MCS) table used by the MCS indication information transmission device for data transmission, wherein the MCS table includes an MCS level corresponding to a modulation mode with a modulation order of 10;

[0022] The second indication information is used to instruct the MCS indication information transmission device to use a CQI table for channel quality indication CQI feedback, where the CQI table includes a CQI level corresponding to a 1024QAM modulation mode;

[0023] The third indication information is used to determine, according to the MCS table, an MCS level corresponding to a channel received or sent by the MCS indication information transmission device.

[0024] In a fifth aspect, a communication device is provided, which terminal includes a processor, a memory, and a program or instruction stored in the memory and runnable on the processor. When the program or instruction is executed by the processor, the steps of the MCS indication information transmission method as described in the first aspect are implemented, or the steps of the MCS indication information transmission method as described in the second aspect are implemented.

[0025] In a sixth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the MCS indication information transmission method as described in the first aspect are implemented, or the steps of the MCS indication information transmission method as described in the second aspect are implemented.

[0026] In the seventh aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a network-side device program or instruction to implement the MCS indication information transmission method as described in the first aspect, or to implement the MCS indication information transmission method as described in the second aspect.

[0027] In an embodiment of the present application, the MCS table indicated by the first indication information includes at least the MCS level corresponding to the modulation mode with a modulation order of 10, so the MCS level determined by the third indication information may also be the MCS level corresponding to the modulation mode with a modulation order of 10. The second communication device has the ability to support 1024QAM, and the second communication device can use the modulation mode and code rate corresponding to the modulation order of 10 for its scheduled channel, so that the communication system can support higher-order modulation, ensure that the communication system can have a higher data throughput in a high signal-to-noise ratio communication scenario, and improve the transmission efficiency of the communication system. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a block diagram of a wireless communication system to which embodiments of the present application may be applied;

[0029] Figure 2 This is a flowchart of a method for transmitting MCS indication information provided by an embodiment of the present application;

[0030] Figure 3This is a structural diagram of an MCS indication information transmission device provided in an embodiment of the present application;

[0031] Figure 4 This is a flowchart of another MCS indication information transmission method provided by an embodiment of the present application;

[0032] Figure 5 This is a structural diagram of another MCS indication information transmission device provided in an embodiment of the present application;

[0033] Figure 6 This is a structural diagram of a communication device provided in an embodiment of the present application;

[0034] Figure 7 This is a structural diagram of a terminal provided in an embodiment of the present application;

[0035] Figure 8 This is a structural diagram of a network-side device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0036] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0037] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated 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; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0038] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in 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 often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. However, the following description describes a New Radio (NR) system for illustrative purposes, and the NR terminology is used in most of the following description, although these technologies can also be applied to applications other than NR system applications, such as 6th generation (6G) systems. th Generation, 6G) communication system.

[0039] Figure 1A block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can also be referred to as a terminal device or a user terminal (UE). The terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (Mobile Internet Device, MID), a wearable device (Wearable Device) or a vehicle-mounted device (VUE), a pedestrian terminal (PUE) and other terminal-side devices. Wearable devices include: bracelets, headphones, glasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 can be a base station or a core network, where the base station can be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (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 and receiving point (Transmitting Receiving Point, TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0040] In addition, the communication system applicable to the embodiments of the present application may also be a sidelink communication system. The specific implementation form of the sidelink communication system may refer to related technologies and will not be described in detail.

[0041] The following, in conjunction with the accompanying drawings, describes in detail the modulation and coding scheme (MCS) indication information transmission method, apparatus, and communication device provided in the embodiments of the present application through specific embodiments and their application scenarios.

[0042] Please refer to Figure 2 , Figure 2This is a flowchart of an MCS indication information transmission method provided in an embodiment of the present application. The method provided in an embodiment of the present application is applied to a first communication device, which may be a network side device, or a terminal in a sidelink communication system, etc.

[0043] like Figure 2 As shown, the MCS indication information transmission method includes the following steps:

[0044] Step 201: When the second communication device has a capability of supporting 1024 Quadrature Amplitude Modulation (QAM), first indication information, second indication information, and third indication information are sent to the second communication device.

[0045] Among them, the first indication information is used to indicate the MCS table used by the second communication device for data transmission, and the MCS table includes the MCS level corresponding to the modulation mode with a modulation order of 10; the second indication information is used to indicate the CQI table used by the second communication device for channel quality indication (Channel Quality Indicator, CQI) feedback, and the CQI table includes the CQI level corresponding to the 1024QAM modulation mode; the third indication information is used to determine the MCS level corresponding to the channel received or sent by the second communication device according to the MCS table.

[0046] Optionally, the first indication information and the second indication information are sent via high-layer signaling; and the third indication information is sent via indication information in downlink control information (Downlink Control Information, DCI).

[0047] For example, the first communication device is a network-side device, and the second communication device is a terminal. The network-side device may send first indication information to the terminal through high-layer signaling to indicate the MCS table used by the terminal for data transmission; the first indication information may be at least one of the following: parameters in high-layer signaling PUSCH-Config, parameters in high-layer signaling ConfiguredGrantConfig, parameters in high-layer signaling PDSCH-Config, and parameters in high-layer signaling SPS-Config. The network-side device may also send second indication information to the terminal through high-layer signaling to indicate the CQI table used by the terminal for CQI feedback, and the second indication information may be at least one of the following: parameters in high-layer signaling CSI-ReportConfig.

[0048] It should be noted that the MCS table includes an MCS index (MCS Index), a modulation order (Modulation Order), a target code rate (Target code Rate) and a spectral efficiency (Spectral efficiency). As shown in Table 1, each MCS index uniquely corresponds to each MCS level, where an MCS index of 0 represents the first MCS level, an MCS index of 1 represents the second MCS level, and so on.

[0049] Table 1. MCS Table 1

[0050]

[0051] The first communication device may notify the second communication device of the determined MCS level through the third indication information of 5 bits in the downlink control information (DCI). The second communication device may obtain the MCS level used by the first communication device for transmission in the physical downlink shared channel (PDSCH) based on the MCS level indicated by the third indication information received through the physical downlink control channel (PDCCH), and may determine the modulation order and code rate corresponding to the indicated MCS level based on the correspondence in the MCS table indicated by the first indication information, and demodulate and decode the corresponding data in the PDSCH.

[0052] In the embodiment of the present application, the MCS table further includes MCS table 2 as shown in Table 2 and MCS table 3 as shown in Table 3.

[0053] Table 2. MCS Table 2

[0054]

[0055] Table 3. MCS Table 3

[0056]

[0057] It should be noted that the second communication device needs to measure the downlink channel and feedback CQI to the first communication device. The CQI feedback can be sent through the Physical Uplink Shared Channel (PUSCH) or the Physical Uplink Control Channel (PUCCH) to send the recommended modulation mode and code rate. The first communication device determines the MCS corresponding to the uplink or downlink channel based on the CQI and prediction algorithm fed back by the second communication device. In the NR system, the modulation mode and code rate are quantized into 15 CQI levels and defined in a 4-bit table, namely the CQI table. The CQI tables 1 to 3 shown below correspond to the above-mentioned MCS tables 1 to 3 respectively. The CQI tables 1 to 3 define the modulation mode, code rate and spectrum efficiency corresponding to different CQI levels. Among them, a CQI index of 0 represents the first CQI level, a CQI index of 1 represents the second CQI level, and so on.

[0058] Table 4. CQI Table 1

[0059]

[0060] Table 5. CQI Table 2

[0061]

[0062] Table 6. CQI Table 3

[0063]

[0064] In an embodiment of the present application, when the second communication device has the capability of supporting 1024QAM, the first communication device sends first indication information to the second communication device, and the first indication information is used to indicate the MCS table used by the second communication device for data transmission. After the first communication device determines the MCS level according to the MCS table, the first communication device notifies the second communication device of the MCS level corresponding to the channel received or sent by the second communication device through third indication information, so as to instruct the second communication device to determine the modulation mode and code rate used for the channel it receives or sends according to the MCS level.

[0065] The MCS table provided in the embodiment of the present application includes at least the MCS level corresponding to the modulation mode with a modulation order of 10. Therefore, the MCS level determined by the third indication information may also be the MCS level corresponding to the modulation mode with a modulation order of 10. The second communication device has the ability to support 1024QAM, and the second communication device can use the modulation mode and code rate corresponding to the modulation order of 10 for its scheduled channel, so that the communication system can support higher-order modulation, ensure that the communication system can have a higher data throughput in a high signal-to-noise ratio communication scenario, and improve the transmission efficiency of the communication system.

[0066] In the embodiment of the present application, the MCS table including the MCS levels corresponding to the modulation mode with a modulation order of 10 can be designed based on the CQI table. Optionally, the CQI table includes the CQI levels corresponding to 1024QAM, and the CQI table satisfies at least one of the following conditions:

[0067] Including the CQI level corresponding to 256QAM in the first CQI table, where the first CQI table is a CQI table including the CQI level corresponding to 256QAM (i.e., Table 5 shown above);

[0068] The spectrum efficiency corresponding to each CQI level is equally spaced;

[0069] The code rates corresponding to each CQI level are equally spaced;

[0070] The signal-to-noise ratios corresponding to each CQI level are equally spaced;

[0071] The spectral efficiency is rounded to four decimal places;

[0072] And the CQI table also satisfies any of the following:

[0073] In the case where the bit rate contains a decimal, the bit rate is determined by rounding up;

[0074] In the case where the bit rate contains a decimal, the bit rate is determined by rounding down;

[0075] In the case where the bit rate contains a decimal, the bit rate is determined by rounding off to the nearest integer;

[0076] If the code rate is a decimal, it is rounded to one decimal place.

[0077] It should be noted that, in order to better distinguish from the above-mentioned CQI tables 1 to 3, the following description of the embodiment of the present application will refer to the CQI table including the CQI level corresponding to 1024QAM as the first target CQI table, and the first target CQI table also satisfies at least one of the above-mentioned conditions.

[0078] The first target CQI table includes the CQI level corresponding to 256QAM in the first CQI table (ie, Table 5, CQI Table 2). That is, the first target CQI table can be designed based on the above CQI Table 2.

[0079] In the embodiment of the present application, the CQI table includes at least two CQI levels corresponding to the 1024QAM modulation mode. That is, the first target CQI table includes at least two CQI levels corresponding to the 1024QAM modulation mode, for example, a first CQI level and a second CQI level, or further including a third CQI level and a fourth CQI level.

[0080] Optionally, in one embodiment, the first target CQI table includes a first CQI level and a second CQI level corresponding to the 1024QAM modulation mode, the code rate corresponding to the first CQI level is different from the code rate corresponding to the second CQI level, and the spectrum efficiency corresponding to the first CQI level is different from the spectrum efficiency corresponding to the second CQI level.

[0081] That is to say, the first target CQI table includes the first CQI level and the second CQI level corresponding to the 1024QAM modulation mode. It should also be noted that the first target CQI table is designed based on the above-mentioned CQI Table 2. The first target CQI table retains the CQI level corresponding to 256QAM in CQI Table 2, and if the first CQI level and the second CQI level corresponding to the 1024QAM modulation mode need to be added, the two CQI levels in CQI Table 2 can be deleted accordingly; optionally, the deletion can be performed in the preset deletion order of QPSK, 16QAM, and 64QAM, for example, the CQI level corresponding to QPSK is deleted first, and then the CQI levels corresponding to 16QAM and 64QAM are deleted. Of course, other rules can be followed to selectively delete the CQI levels in CQI Table 2. In an optional implementation of the 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 the first CQI level and the second CQI level corresponding to the 1024QAM modulation mode are added.

[0082] In the first target CQI table, the code rates and spectral efficiencies corresponding to the first and second CQI levels can be determined based on at least one of the above conditions. For example, if the spectral efficiencies corresponding to the CQI levels in the first target CQI table are equally spaced, then based on the spectral efficiencies between the CQI levels determined in CQI Table 2, the spectral efficiencies corresponding to the first and second CQI levels can be determined; and the spectral efficiencies corresponding to the first and second CQI levels are rounded to four decimal places. For another example, if the code rates corresponding to the CQI levels in the first target CQI table are equally spaced, then based on the code rates between the CQI levels determined in CQI Table 2, the code rates corresponding to the first and second CQI levels can be determined. Alternatively, the code rates in the first target CQI table can also satisfy the following conditions: if the code rate contains decimals, the code rate can be determined by rounding up, rounding down, or rounding up, or the code rate is rounded to one decimal place. For example, the code rate corresponding to the first CQI level may be an integer, or may have one decimal place, or the code rate corresponding to the first CQI level may have multiple corresponding values, etc.

[0083] Optionally, the code rate and spectrum efficiency corresponding to the first CQI level may be determined based on the above conditions. For example, the code rate corresponding to the first CQI level is 853, and the corresponding spectrum efficiency is 8.3321.

[0084] Optionally, the code rate and spectrum efficiency corresponding to the second CQI level may also be determined based on the above conditions. For example, the code rate corresponding to the second CQI level is 948, and the corresponding spectrum efficiency is 9.2578.

[0085] In this way, the first target CQI table can be obtained as CQI table 4 shown in Table 7 below:

[0086] Table 7. CQI Table 4

[0087]

[0088] In the above-mentioned CQI Table 4, the first CQI level and the second CQI level corresponding to the 1024QAM modulation mode correspond to CQI index 14 and CQI index 15, respectively. In this way, the second indication information sent by the first communication device to the second communication device can not only indicate the above-mentioned CQI Tables 1 to 3, but also indicate CQI Table 4. As a result, the CQI table used by the second communication device for channel quality feedback can also include the CQI level corresponding to the 1024QAM modulation mode, thereby facilitating higher-order modulation of the communication system.

[0089] In an embodiment of the present application, the CQI table includes at least two CQI levels corresponding to the 1024QAM modulation mode. On the basis of the first CQI level and the second CQI level included in the above-mentioned CQI table 4, the CQI table also includes a third CQI level and a fourth CQI level corresponding to the 1024QAM modulation mode, and the third CQI level and the fourth CQI level are obtained based on the first CQI level and the second CQI level.

[0090] That is, based on the above-mentioned CQI table 4, a third CQI level and a fourth CQI level corresponding to the 1024QAM modulation mode may be further added, while the first CQI level and the second CQI level in the CQI table 4 are retained. To better illustrate this embodiment, a 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 the second target CQI table also satisfies at least one of the following conditions:

[0091] Including the CQI level corresponding to 256QAM in the first CQI table, where the first CQI table is a CQI table including the CQI level corresponding to 256QAM (i.e., Table 5 shown above);

[0092] The spectrum efficiency corresponding to each CQI level is equally spaced;

[0093] The code rates corresponding to each CQI level are equally spaced;

[0094] The signal-to-noise ratios corresponding to each CQI level are equally spaced;

[0095] The spectral efficiency is rounded to four decimal places;

[0096] And the CQI table also satisfies any of the following:

[0097] In the case where the bit rate contains a decimal, the bit rate is determined by rounding up;

[0098] In the case where the bit rate contains a decimal, the bit rate is determined by rounding down;

[0099] In the case where the bit rate contains a decimal, the bit rate is determined by rounding off to the nearest integer;

[0100] In the case that the code rate has a decimal, the code rate is rounded to one decimal place.

[0101] It can be understood that the second target CQI table is designed on the basis of the above-mentioned CQI table 4, and the third CQI level and the fourth CQI level corresponding to the 1024QAM modulation mode are newly added. Then, the two CQI levels in CQI table 4 can be deleted accordingly, but the CQI levels corresponding to the 1024QAM and 256QAM modulation modes need to be retained at the same time. Among them, the code rate and spectrum efficiency corresponding to the third CQI level and the fourth CQI level can be determined based on at least one of the above-mentioned conditions. For example, if the spectrum efficiency corresponding to each CQI level in the second target CQI table is equally spaced, then based on the spectrum efficiency of each CQI level determined in the above-mentioned CQI table 4, the spectrum efficiency corresponding to the third CQI level and the fourth CQI level can be determined; and, the spectrum efficiency corresponding to the third CQI level and the fourth CQI level is rounded to four decimal places. In addition, the code rates of the third CQI level and the fourth CQI level are equidistant from those of the other CQI levels. When a decimal is present in the code rate, the code rate may be determined by rounding up, rounding down, or rounding to the nearest integer, or the code rate may be rounded to one decimal place. For example, the code rate corresponding to the third CQI level may have multiple corresponding values, and the code rate corresponding to the fourth CQI level may also have multiple corresponding values.

[0102] Optionally, the third CQI level can be obtained by interpolating the first CQI level and the second CQI level. For example, the spectrum efficiencies corresponding to the first CQI level, the second CQI level, and the third CQI level are equidistant. The spectrum efficiencies of the first CQI level and the second CQI level are known, so the spectrum efficiency corresponding to the third CQI level can also be determined. The fourth CQI level can also be obtained by interpolating the first CQI level and the second CQI level.

[0103] Among them, the coding rate corresponding to the third CQI level is any one of the following: 805, 806, 805.5, and the spectrum efficiency corresponding to the third CQI level is any one of the following: 7.8613, 7.8711, 7.8662.

[0104] The coding rate corresponding to the fourth CQI level is any one of the following: 900, 901, 900.5, and the spectrum efficiency corresponding to the fourth CQI level is any one of the following: 8.7891, 8.7988, 8.7939.

[0105] Specifically, the second target CQI table can be obtained as CQI tables 5 to 8 shown in the following tables 8 to 11:

[0106] Table 8. CQI Table 5

[0107]

[0108]

[0109] Table 9. CQI Table 6

[0110]

[0111] Table 10. CQI Table 7

[0112]

[0113] Table 11. CQI Table 8

[0114]

[0115] In the above-mentioned CQI tables 5 to 8, the first CQI level corresponding to the 1024QAM modulation mode 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 CQI tables used by the first communication device to instruct the second communication device to perform channel quality feedback also include CQI tables 1 to 8, and can also include more CQI levels corresponding to the 1024QAM modulation mode, further improving the flexibility and selectivity of the second communication device for channel quality feedback, and more conducive to the communication system performing higher-order modulation, thereby improving the data throughput of the communication system in high signal-to-noise ratio scenarios.

[0116] Optionally, the CQI table is suitable for configuration through Radio Resource Control (RRC) signaling.

[0117] In the embodiment of the present application, the MCS table includes at least the MCS level corresponding to the modulation mode with a modulation order of 10, and the MCS table can be designed based on the above-mentioned CQI table. Optionally, the MCS table satisfies at least one of the following:

[0118] Including the code rate and spectrum efficiency in the CQI table;

[0119] Including an MCS level corresponding to 256QAM in a first MCS table, where the first MCS table is an MCS table including an MCS level corresponding to 256QAM;

[0120] The spectrum efficiency corresponding to each MCS level is equally spaced;

[0121] The target bit rates corresponding to each MCS level are equally spaced;

[0122] The signal-to-noise ratios corresponding to each MCS level are equally spaced;

[0123] The spectral efficiency is rounded to four decimal places;

[0124] The MCS table also satisfies any of the following:

[0125] If the target bit rate is a decimal, the target bit rate is determined by rounding up.

[0126] If the target bit rate is a decimal, the target bit rate is determined by rounding down.

[0127] If the target bit rate is a decimal, the target bit rate is determined by rounding off.

[0128] In the case that the target bit rate is a decimal, the target bit rate is rounded to one decimal place.

[0129] It should be noted that, in order to better distinguish it from the aforementioned MCS tables 1 to 3, the following description of the embodiments of the present application will refer to the MCS table including the MCS level corresponding to the modulation mode with a modulation order of 10 as the first target MCS table, and the first target MCS table also satisfies at least one of the above conditions.

[0130] The first target MCS table includes a first MCS level, a second MCS level, a third MCS level, a fourth MCS level corresponding to a modulation mode with a modulation order of 10, and a fifth MCS level for retransmission.

[0131] It should be noted that the first target MCS table includes the target bit rate and spectral efficiency corresponding to the CQI table. The CQI table refers to the CQI table that includes the 1024QAM modulation scheme, namely, CQI Tables 4 to 8. Thus, the first target MCS table includes the target bit rate and spectral efficiency corresponding to each CQI level in CQI Tables 4 to 8. Therefore, the first target MCS table also includes the target bit rate and spectral efficiency corresponding to the 1024QAM modulation scheme. For example, the first target MCS table may be designed based on CQI Table 4 to add MCS levels corresponding to modulation schemes with a modulation order of 10. Alternatively, the first target MCS table includes MCS levels corresponding to 256QAM in the first MCS table. The first MCS table is the MCS table that includes MCS levels corresponding to 256QAM. The first MCS table is also MCS Table 2. Therefore, the first target MCS table is designed based on MCS Table 2 to add MCS levels corresponding to modulation schemes with a modulation order of 10.

[0132] In one implementation of the embodiment of the present application, the first target MCS table can be designed based on MCS table 2, and the first MCS level, second MCS level, third MCS level, fourth MCS level, and fifth MCS level are added accordingly, thereby deleting five MCS levels from the original MCS table. Alternatively, the MCS levels can be deleted in the order of first deleting the MCS level corresponding to the modulation order of 2, then deleting the MCS level corresponding to the modulation order of 4, and then deleting the MCS level corresponding to the modulation order of 6. Alternatively, other rules can be followed to selectively delete the MCS levels in MCS table 2. Optionally, in the embodiment of the present application, the MCS levels corresponding to MCS indices of 6, 8, 10, 12, and 14 in MCS table 2 are deleted, and the MCS levels corresponding to the adjustment mode of modulation order 10, namely the first MCS level, the second MCS level, the third MCS level, the fourth MCS level, and the fifth MCS level for retransmission, are added to obtain the first target MCS table.

[0133] In the first target MCS table, the target bit rates and spectral efficiencies corresponding to the first, second, third, and fourth MCS levels can 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, then based on the spectral efficiencies between the MCS levels determined in MCS Table 2, the spectral efficiencies corresponding to the four newly added MCS levels can be determined. Furthermore, the spectral efficiencies corresponding to the first, second, third, and fourth MCS levels can be rounded to four decimal places. For another example, if the target bit rates corresponding to the MCS levels in the first target MCS table are equally spaced, then based on the target bit rates between the MCS levels determined in MCS Table 2, the target bit rates corresponding to the four newly added MCS levels can be determined. 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 also satisfy the following conditions: when the target code rate contains a decimal, the target code rate may be determined by rounding up, rounding down, or rounding up, or the target code rate may be rounded to one decimal place. For example, the target code rate corresponding to the first MCS level may be an integer, or may be rounded to one decimal place, or the target code rate corresponding to the first MCS level may have multiple corresponding values, etc.

[0134] Optionally, the target bit rate and spectrum efficiency corresponding to the first MCS level can be determined based on the above conditions. For example, the target bit rate corresponding to the first MCS level is any one of the following: 805, 806, 805.5, and the spectrum efficiency corresponding to the first MCS level is any one of the following: 7.8613, 7.8711, 7.8662.

[0135] Optionally, the target code rate corresponding to the second MCS level is 853, and the spectrum efficiency corresponding to the second MCS level is 8.3301.

[0136] Optionally, the code rate corresponding to the third MCS level is any one of the following: 900, 901, 900.5, and the spectrum efficiency corresponding to the third MCS level is any one of the following: 8.7891, 8.7988, 8.7939.

[0137] Optionally, the target code rate corresponding to the fourth MCS level is 948, and the spectrum efficiency corresponding to the fourth MCS level is 9.2578.

[0138] Specifically, based on the above optional implementation manner, the first target MCS table can be obtained as MCS tables 4 to 7 shown in Tables 12 to 15 below:

[0139] Table 12. MCS Table 4

[0140]

[0141]

[0142] Table 13. MCS Form 5

[0143]

[0144] Table 14. MCS Table 6

[0145]

[0146] Table 15. MCS Table 7

[0147]

[0148]

[0149] In the above-mentioned MCS tables 4 to 7, the first MCS level corresponding to the MCS level corresponding to the modulation mode 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 MCSIndex 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 can instruct the second communication device to use the MCS tables for data transmission to include MCS tables 1 to 7, and thus the channel received or sent by the second communication device can also include the MCS level corresponding to the modulation mode with a modulation order of 10, further improving the modulation mode for channel reception or transmission by the communication device, thereby improving the data throughput of the communication system in high signal-to-noise ratio scenarios.

[0150] It is understandable that the MCS table can be designed based on the CQI table. Furthermore, in another implementation of the embodiment of the present application, based on the above-mentioned CQI tables 5 to 8, a second target MCS table can be designed accordingly. It should be noted that the second target MCS table can be updated based on the first target MCS table, that is, updated based on MCS tables 4 to 7.

[0151] 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 be based on the first target MCS table, and further includes a sixth MCS level, a seventh MCS level, an eighth MCS level, and a ninth MCS level. Thus, the second target MCS table includes nine MCS levels corresponding to a modulation scheme with a modulation order of 10, namely, 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.

[0152] The second target MCS table may also satisfy at least one of the following conditions:

[0153] Including the code rate and spectrum efficiency in the CQI table;

[0154] Including an MCS level corresponding to 256QAM in a first MCS table, where the first MCS table is an MCS table including an MCS level corresponding to 256QAM;

[0155] The spectrum efficiency corresponding to each MCS level is equally spaced;

[0156] The target bit rates corresponding to each MCS level are equally spaced;

[0157] The signal-to-noise ratios corresponding to each MCS level are equally spaced;

[0158] The spectral efficiency is rounded to four decimal places;

[0159] The MCS table also satisfies any of the following:

[0160] If the target bit rate is a decimal, the target bit rate is determined by rounding up.

[0161] If the target bit rate is a decimal, the target bit rate is determined by rounding down.

[0162] If the target bit rate is a decimal, the target bit rate is determined by rounding off.

[0163] In the case that the target bit rate is a decimal, the target bit rate is rounded to one decimal place.

[0164] It can be understood that the second target MCS table is designed based on the first target MCS table and corresponds to the CQI tables 5 to 8. Therefore, the sixth MCS level, seventh MCS level, eighth MCS level, and ninth MCS level can be added on the basis of the first target MCS table, and the four MCS levels in the first target MCS table can be deleted accordingly. The deletion method can refer to the description of the first target MCS table and will not be repeated here. Among them, the target code rate and spectrum efficiency corresponding to the newly added sixth MCS level, seventh MCS level, eighth MCS level, and ninth MCS level can be 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 is equidistant from the spectral efficiencies of other MCS levels in the second target MCS table; and, the spectral efficiency of the sixth MCS level is rounded to four decimal places; the target code rate of the sixth MCS level is equidistant from the target code rates of other MCS levels. When a decimal appears in the target code rate of the sixth MCS level, the target code rate of the sixth MCS level can be determined by rounding up, rounding down, or rounding up, or the target code rate is rounded to one decimal place.

[0165] Optionally, the target code rate corresponding to the sixth MCS level is any one of the following: 781, 783, 781.5, 782, and the spectrum efficiency corresponding to the sixth MCS level is any one of the following: 7.627, 7.6465, 7.6318, 7.6367.

[0166] Optionally, the target code rate corresponding to the seventh MCS level is any one of the following: 828, 830, 829.5, and the spectrum efficiency corresponding to the seventh MCS level is any one of the following: 8.0859, 8.1055, 8.1006.

[0167] Optionally, the target code rate corresponding to the eighth MCS level is any one of the following: 876, 877, 876.5, and the spectrum efficiency corresponding to the eighth MCS level is any one of the following: 8.5547, 8.5645, 8.5596.

[0168] Optionally, the target code rate corresponding to the ninth MCS level is any one of the following: 924, 925, 924.5, and the spectrum efficiency corresponding to the ninth MCS level is any one of the following: 9.0234, 9.0332, 9.0283.

[0169] Specifically, based on the above optional implementation manner, the second target MCS table can be obtained as MCS tables 8 to 11 shown in Tables 16 to 19:

[0170] Table 16. MCS Form 8

[0171]

[0172]

[0173] Table 17. MCS Form 9

[0174]

[0175]

[0176] Table 18. MCS Table 10

[0177]

[0178]

[0179] Table 19. MCS Table 11

[0180]

[0181]

[0182] In the above-mentioned MCS tables 8 to 11, the MCS levels corresponding to the modulation mode with a modulation order of 10 are MCSIndex 19 to 26 and MCS Index 31. In this way, the first communication device can also instruct the second communication device to use the MCS tables for data transmission, which also include MCS tables 1 to 11. This further increases the number of MCS tables, improves the selectivity and flexibility of the MCS levels used by the second communication device for channel reception and transmission, and effectively improves the modulation mode of the communication device for channel reception or transmission, thereby improving the data throughput of the communication system in high signal-to-noise ratio scenarios.

[0183] In the embodiment of the present application, the MCS table is applicable to at least one of the following:

[0184] a PDSCH scheduled by a PDCCH in a first downlink control information format scrambled by a Cell Radio Network Temporary Identifier (C-RNTI) or a Configured Scheduling RNTI (CS-RNTI) performing a cyclic redundancy check (CRC);

[0185] PDSCH scheduled by the PDCCH of the second DCI format that is CRC-scrambled by the C-RNTI or CS-RNTI;

[0186] The physical uplink shared channel PUSCH scheduled by the third DCI format with CRC scrambled by the C-RNTI or CS-RNTI, or the grant-free PUSCH configured by RRC signaling.

[0187] That is to say, the above-mentioned MCS table including the MCS level corresponding to the modulation mode with a modulation order of 10, that is, the above-mentioned MCS tables 4 to 11 can be applicable to the PDSCH scheduled by the PDCCH of DCI format 1_1 with CRC scrambling by C-RNTI or CS-RNTI; and / or applicable to the PDSCH scheduled by the PDCCH of DCI format 1_2 with CRC scrambling by C-RNTI or CS-RNTI; and / or applicable to the PUSCH scheduled by DCI format 0_1 ​​or DCI format 0_2 with CRC scrambling by C-RNTI or CS-RNTI, or applicable to the unauthorized PUSCH configured by RRC signaling.

[0188] In the embodiment of the present application, before step 201, the following steps may also be included:

[0189] Receive fourth indication information reported by the second communication device, where the fourth indication information is used to indicate whether the second communication device has a capability of supporting 1024QAM.

[0190] That is, the first communication device first receives the fourth indication information reported by the second communication device. If the fourth indication information indicates that the second communication device has the capability to support 1024QAM, the first communication device then sends the first indication information, the second indication information, and the third indication information to the second communication device, that is, instructing the second communication device to use the MCS table for data transmission and the CQI table for CQI feedback, and notifying the second communication device of the MCS level corresponding to the channel received and sent by the second communication device. If the second communication device has the capability to support 1024QAM, the second communication device can use the modulation mode and code rate corresponding to the modulation order of 10 for its scheduled channel, so that the communication system can support higher-order modulation, ensure that the communication system can have a higher data throughput in high signal-to-noise ratio communication scenarios, and improve the transmission efficiency of the communication system.

[0191] Optionally, the fourth indication information is reported using any one of the following granularities:

[0192] Each frequency band;

[0193] frequency band combination;

[0194] Feature Set Per Component-carrier (FSPC)

[0195] For example, the second communication device may report the fourth indication information through each frequency band (per band) and / or several frequency band combinations (bandcombination), or may report the fourth indication information through FSPC, thereby notifying the first communication device whether the second communication device has the capability to support 1024QAM, so that the first communication device can determine the MCS level corresponding to the channel scheduled for the second communication device, which is conducive to smooth communication between the first communication device and the second communication device.

[0196] It should be noted that the MCS indication information transmission method provided in the embodiment of the present application can be executed by an MCS indication information transmission device, or a control module in the MCS indication information transmission device for executing the MCS indication information transmission method. In the embodiment of the present application, the MCS indication information transmission device executing the MCS indication information transmission method is taken as an example to illustrate the MCS indication information transmission device provided in the embodiment of the present application.

[0197] Please refer to Figure 3 , Figure 3This is a structural diagram of an MCS indication information transmission device provided in an embodiment of the present application. Figure 3 As shown, the MCS indication information transmission device 300 includes:

[0198] A sending module 301 is configured to send 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);

[0199] The first indication information is used to indicate a modulation and coding strategy (MCS) table used by the second communication device for data transmission, wherein the MCS table includes an MCS level corresponding to a modulation mode with a modulation order of 10;

[0200] The second indication information is used to indicate a CQI table used by the second communication device for channel quality indication CQI feedback, where the CQI table includes a CQI level corresponding to a 1024QAM modulation mode;

[0201] The third indication information is used to determine, according to the MCS table, an MCS level corresponding to a channel received or sent by the second communication device.

[0202] Optionally, the CQI table satisfies at least one of the following:

[0203] Including a CQI level corresponding to 256QAM in a first CQI table, where the first CQI table is a CQI table including the CQI level corresponding to 256QAM;

[0204] The spectrum efficiency corresponding to each CQI level is equally spaced;

[0205] The code rates corresponding to each CQI level are equally spaced;

[0206] The signal-to-noise ratios corresponding to each CQI level are equally spaced;

[0207] The spectral efficiency is rounded to four decimal places;

[0208] And the CQI table also satisfies any of the following:

[0209] In the case where the bit rate contains a decimal, the bit rate is determined by rounding up;

[0210] In the case where the bit rate contains a decimal, the bit rate is determined by rounding down;

[0211] In the case where the bit rate contains a decimal, the bit rate is determined by rounding off to the nearest integer;

[0212] In the case that the code rate has a decimal, the code rate is rounded to one decimal place.

[0213] Optionally, the CQI table includes at least two CQI levels corresponding to the 1024QAM modulation mode.

[0214] Optionally, the CQI table includes a first CQI level and a second CQI level corresponding to the 1024QAM modulation mode, the code rate corresponding to the first CQI level is different from the code rate corresponding to the second CQI level, and the spectrum efficiency corresponding to the first CQI level is different from the spectrum efficiency corresponding to the second CQI level.

[0215] Optionally, the code rate corresponding to the first CQI level is 853, and the corresponding spectrum efficiency is 8.3321.

[0216] Optionally, the code rate corresponding to the second CQI level is 948, and the corresponding spectrum efficiency is 9.2578.

[0217] Optionally, the CQI table further includes a third CQI level and a fourth CQI level corresponding to the 1024QAM modulation mode, and the third CQI level and the fourth CQI level are obtained based on the first CQI level and the second CQI level.

[0218] Optionally, the coding rate corresponding to the third CQI level is any one of the following: 805, 806, 805.5, and the spectrum efficiency corresponding to the third CQI level is any one of the following: 7.8613, 7.8711, 7.8662.

[0219] Optionally, the coding rate corresponding to the fourth CQI level is any one of the following: 900, 901, 900.5, and the spectrum efficiency corresponding to the fourth CQI level is any one of the following: 8.7891, 8.7988, 8.7939.

[0220] Optionally, the MCS table satisfies at least one of the following:

[0221] Including the code rate and spectrum efficiency in the CQI table;

[0222] Including an MCS level corresponding to 256QAM in a first MCS table, where the first MCS table is an MCS table including an MCS level corresponding to 256QAM;

[0223] The spectrum efficiency corresponding to each MCS level is equally spaced;

[0224] The target bit rates corresponding to each MCS level are equally spaced;

[0225] The signal-to-noise ratios corresponding to each MCS level are equally spaced;

[0226] The spectral efficiency is rounded to four decimal places;

[0227] The MCS table also satisfies any of the following:

[0228] If the target bit rate is a decimal, the target bit rate is determined by rounding up.

[0229] If the target bit rate is a decimal, the target bit rate is determined by rounding down.

[0230] If the target bit rate is a decimal, the target bit rate is determined by rounding off.

[0231] In the case that the target bit rate is a decimal, the target bit rate is rounded to one decimal place.

[0232] Optionally, the MCS table includes a first MCS level, a second MCS level, a third MCS level, a fourth MCS level corresponding to a modulation mode with a modulation order of 10, and a fifth MCS level for retransmission.

[0233] Optionally, the target code rate corresponding to the first MCS level is any one of the following: 805, 806, 805.5, and the spectrum efficiency corresponding to the first MCS level is any one of the following: 7.8613, 7.8711, 7.8662.

[0234] Optionally, the target code rate corresponding to the second MCS level is 853, and the spectrum efficiency corresponding to the second MCS level is 8.3301.

[0235] Optionally, the code rate corresponding to the third MCS level is any one of the following: 900, 901, 900.5, and the spectrum efficiency corresponding to the third MCS level is any one of the following: 8.7891, 8.7988, 8.7939.

[0236] Optionally, the target code rate corresponding to the fourth MCS level is 948, and the spectrum efficiency corresponding to the fourth MCS level is 9.2578.

[0237] 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 mode with a modulation order of 10.

[0238] Optionally, the target code rate corresponding to the sixth MCS level is any one of the following: 781, 783, 781.5, 782, and the spectrum efficiency corresponding to the sixth MCS level is any one of the following: 7.627, 7.6465, 7.6318, 7.6367.

[0239] Optionally, the target code rate corresponding to the seventh MCS level is any one of the following: 828, 830, 829.5, and the spectrum efficiency corresponding to the seventh MCS level is any one of the following: 8.0859, 8.1055, 8.1006.

[0240] Optionally, the target code rate corresponding to the eighth MCS level is any one of the following: 876, 877, 876.5, and the spectrum efficiency corresponding to the eighth MCS level is any one of the following: 8.5547, 8.5645, 8.5596.

[0241] Optionally, the target code rate corresponding to the ninth MCS level is any one of the following: 924, 925, 924.5, and the spectrum efficiency corresponding to the ninth MCS level is any one of the following: 9.0234, 9.0332, 9.0283.

[0242] Optionally, the MCS table is applicable to at least one of the following:

[0243] A physical downlink shared channel PDSCH scheduled by a physical downlink control channel PDCCH in a first downlink control information format scrambled by a cell radio network temporary identifier C-RNTI or a configured scheduling CS-RNTI for cyclic redundancy check CRC;

[0244] PDSCH scheduled by the PDCCH of the second DCI format that is CRC-scrambled by the C-RNTI or CS-RNTI;

[0245] The physical uplink shared channel PUSCH scheduled by the third DCI format with CRC scrambled by C-RNTI or CS-RNTI, or the grant-free PUSCH configured by radio resource control RRC signaling.

[0246] Optionally, the first indication information and the second indication information are sent via higher layer signaling; and the third indication information is sent via indication information in downlink control information DCI.

[0247] Optionally, the MCS indication information transmission device 300 further includes:

[0248] The first receiving module is used to receive fourth indication information reported by the second communication device, where the fourth indication information is used to indicate whether the second communication device has the capability of supporting 1024QAM.

[0249] Optionally, the fourth indication information is reported using any one of the following granularities:

[0250] Each frequency band;

[0251] frequency band combination;

[0252] Carrier characteristic set FSPC.

[0253] It should be noted that the MCS indication information transmission device 300 provided in the embodiment of the present application can achieve Figure 2 The various processes implemented by the method embodiment achieve the same technical effects, and to avoid repetition, they will not be described here.

[0254] In an embodiment of the present application, the MCS table indicated by the first indication information includes at least the MCS level corresponding to the modulation mode with a modulation order of 10, so the MCS level determined by the third indication information may also be the MCS level corresponding to the modulation mode with a modulation order of 10. The second communication device has the ability to support 1024QAM, and the second communication device can use the modulation mode and code rate corresponding to the modulation order of 10 for its scheduled channel, so that the communication system can support higher-order modulation, ensure that the communication system can have a higher data throughput in a high signal-to-noise ratio communication scenario, and improve the transmission efficiency of the communication system.

[0255] Please refer to Figure 4 , Figure 4 This is a flowchart of another MCS indication information transmission method provided in an embodiment of the present application. The method provided in an embodiment of the present application is applied to a second communication device, which may be a terminal.

[0256] like Figure 4 As shown, the MCS indication information transmission method includes the following steps:

[0257] Step 401: When the second communication device has the capability of supporting 1024QAM, receive first indication information, second indication information and third indication information sent by the first communication device.

[0258] The first indication information is used to indicate a modulation and coding strategy (MCS) table used by the second communication device for data transmission, wherein the MCS table includes an MCS level corresponding to a modulation mode with a modulation order of 10;

[0259] The second indication information is used to indicate a CQI table used by the second communication device for channel quality indication CQI feedback, where the CQI table includes a CQI level corresponding to a 1024QAM modulation mode;

[0260] The third indication information is used to determine, according to the MCS table, an MCS level corresponding to a channel received or sent by the second communication device.

[0261] Optionally, the CQI table satisfies at least one of the following:

[0262] Including a CQI level corresponding to 256QAM in a first CQI table, where the first CQI table is a CQI table including the CQI level corresponding to 256QAM;

[0263] The spectrum efficiency corresponding to each CQI level is equally spaced;

[0264] The code rates corresponding to each CQI level are equally spaced;

[0265] The signal-to-noise ratios corresponding to each CQI level are equally spaced;

[0266] The spectral efficiency is rounded to four decimal places;

[0267] And the CQI table also satisfies any of the following:

[0268] In the case where the bit rate contains a decimal, the bit rate is determined by rounding up;

[0269] In the case where the bit rate contains a decimal, the bit rate is determined by rounding down;

[0270] In the case where the bit rate contains a decimal, the bit rate is determined by rounding off to the nearest integer;

[0271] In the case that the code rate has a decimal, the code rate is rounded to one decimal place.

[0272] Optionally, the CQI table includes at least two CQI levels corresponding to the 1024QAM modulation mode.

[0273] Optionally, the CQI table includes a first CQI level and a second CQI level corresponding to the 1024QAM modulation mode, the code rate corresponding to the first CQI level is different from the code rate corresponding to the second CQI level, and the spectrum efficiency corresponding to the first CQI level is different from the spectrum efficiency corresponding to the second CQI level.

[0274] Optionally, the code rate corresponding to the first CQI level is 853, and the corresponding spectrum efficiency is 8.3321.

[0275] Optionally, the code rate corresponding to the second CQI level is 948, and the corresponding spectrum efficiency is 9.2578.

[0276] Optionally, the CQI table further includes a third CQI level and a fourth CQI level corresponding to the 1024QAM modulation mode, and the third CQI level and the fourth CQI level are obtained based on the first CQI level and the second CQI level.

[0277] Optionally, the coding rate corresponding to the third CQI level is any one of the following: 805, 806, 805.5, and the spectrum efficiency corresponding to the third CQI level is any one of the following: 7.8613, 7.8711, 7.8662.

[0278] Optionally, the coding rate corresponding to the fourth CQI level is any one of the following: 900, 901, 900.5, and the spectrum efficiency corresponding to the fourth CQI level is any one of the following: 8.7891, 8.7988, 8.7939.

[0279] Optionally, the MCS table satisfies at least one of the following:

[0280] Including the code rate and spectrum efficiency in the CQI table;

[0281] Including an MCS level corresponding to 256QAM in a first MCS table, where the first MCS table is an MCS table including an MCS level corresponding to 256QAM;

[0282] The spectrum efficiency corresponding to each MCS level is equally spaced;

[0283] The target bit rates corresponding to each MCS level are equally spaced;

[0284] The signal-to-noise ratios corresponding to each MCS level are equally spaced;

[0285] The spectral efficiency is rounded to four decimal places;

[0286] The MCS table also satisfies any of the following:

[0287] If the target bit rate is a decimal, the target bit rate is determined by rounding up.

[0288] If the target bit rate is a decimal, the target bit rate is determined by rounding down.

[0289] If the target bit rate is a decimal, the target bit rate is determined by rounding off.

[0290] In the case that the target bit rate is a decimal, the target bit rate is rounded to one decimal place.

[0291] Optionally, the MCS table includes a first MCS level, a second MCS level, a third MCS level, a fourth MCS level corresponding to a modulation mode with a modulation order of 10, and a fifth MCS level for retransmission.

[0292] Optionally, the target code rate corresponding to the first MCS level is any one of the following: 805, 806, 805.5, and the spectrum efficiency corresponding to the first MCS level is any one of the following: 7.8613, 7.8711, 7.8662.

[0293] Optionally, the target code rate corresponding to the second MCS level is 853, and the spectrum efficiency corresponding to the second MCS level is 8.3301.

[0294] Optionally, the code rate corresponding to the third MCS level is any one of the following: 900, 901, 900.5, and the spectrum efficiency corresponding to the third MCS level is any one of the following: 8.7891, 8.7988, 8.7939.

[0295] Optionally, the target code rate corresponding to the fourth MCS level is 948, and the spectrum efficiency corresponding to the fourth MCS level is 9.2578.

[0296] 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 mode with a modulation order of 10.

[0297] Optionally, the target code rate corresponding to the sixth MCS level is any one of the following: 781, 783, 781.5, 782, and the spectrum efficiency corresponding to the sixth MCS level is any one of the following: 7.627, 7.6465, 7.6318, 7.6367.

[0298] Optionally, the target code rate corresponding to the seventh MCS level is any one of the following: 828, 830, 829.5, and the spectrum efficiency corresponding to the seventh MCS level is any one of the following: 8.0859, 8.1055, 8.1006.

[0299] Optionally, the target code rate corresponding to the eighth MCS level is any one of the following: 876, 877, 876.5, and the spectrum efficiency corresponding to the eighth MCS level is any one of the following: 8.5547, 8.5645, 8.5596.

[0300] Optionally, the target code rate corresponding to the ninth MCS level is any one of the following: 924, 925, 924.5, and the spectrum efficiency corresponding to the ninth MCS level is any one of the following: 9.0234, 9.0332, 9.0283.

[0301] Optionally, the MCS table is applicable to at least one of the following:

[0302] A physical downlink shared channel PDSCH scheduled by a physical downlink control channel PDCCH in a first downlink control information format scrambled by a cell radio network temporary identifier C-RNTI or a configured scheduling CS-RNTI for cyclic redundancy check CRC;

[0303] PDSCH scheduled by the PDCCH of the second DCI format that is CRC-scrambled by the C-RNTI or CS-RNTI;

[0304] The physical uplink shared channel PUSCH scheduled by the third DCI format with CRC scrambled by C-RNTI or CS-RNTI, or the grant-free PUSCH configured by radio resource control RRC signaling.

[0305] Optionally, the first indication information and the second indication information are sent via higher layer signaling; and the third indication information is sent via indication information in downlink control information DCI.

[0306] Optionally, the method further includes:

[0307] Fourth indication information is sent to the first communication device, where the fourth indication information is used to indicate whether the second communication device has a capability of supporting 1024QAM.

[0308] Optionally, the fourth indication information is reported using any one of the following granularities:

[0309] Each frequency band;

[0310] frequency band combination;

[0311] Carrier characteristic set FSPC.

[0312] It should be noted that the specific implementation process of the MCS indication information transmission method performed by the second communication device provided in the embodiment of the present application and the specific description of the relevant technical features can be referred to above. Figure 2 To avoid repetition, the description in the method embodiment will not be repeated in the present application embodiment.

[0313] In an embodiment of the present application, the MCS table indicated by the first indication information includes at least the MCS level corresponding to the modulation mode with a modulation order of 10, so the MCS level determined by the third indication information may also be the MCS level corresponding to the modulation mode with a modulation order of 10. The second communication device has the ability to support 1024QAM, and the second communication device can use the modulation mode and code rate corresponding to the modulation order of 10 for its scheduled channel, so that the communication system can support higher-order modulation, ensure that the communication system can have a higher data throughput in a high signal-to-noise ratio communication scenario, and improve the transmission efficiency of the communication system.

[0314] It should be noted that the MCS indication information transmission method provided in the embodiments of the present application can be executed by an MCS indication information transmission device, or by a control module in the MCS indication information transmission device for executing the MCS indication information transmission method. In the embodiments of the present application, the MCS indication information transmission device executing the MCS indication information transmission method is taken as an example to illustrate the MCS indication information transmission device provided in the embodiments of the present application.

[0315] Please refer to Figure 5 , Figure 5 This is a structural diagram of another MCS indication information transmission device provided in an embodiment of the present application. Figure 5 As shown, the MCS indication information transmission device 500 includes:

[0316] A receiving module 501 is configured to receive first indication information, second indication information, and third indication information sent by a first communication device when the MCS indication information transmission apparatus has a capability of supporting 1024 quadrature amplitude modulation (QAM);

[0317] The first indication information is used to indicate a modulation and coding strategy (MCS) table used by the MCS indication information transmission device for data transmission, wherein the MCS table includes an MCS level corresponding to a modulation mode with a modulation order of 10;

[0318] The second indication information is used to instruct the MCS indication information transmission device to use a CQI table for channel quality indication CQI feedback, where the CQI table includes a CQI level corresponding to a 1024QAM modulation mode;

[0319] The third indication information is used to determine, according to the MCS table, an MCS level corresponding to a channel received or sent by the MCS indication information transmission device.

[0320] Optionally, the CQI table satisfies at least one of the following:

[0321] Including a CQI level corresponding to 256QAM in a first CQI table, where the first CQI table is a CQI table including the CQI level corresponding to 256QAM;

[0322] The spectrum efficiency corresponding to each CQI level is equally spaced;

[0323] The code rates corresponding to each CQI level are equally spaced;

[0324] The signal-to-noise ratios corresponding to each CQI level are equally spaced;

[0325] The spectral efficiency is rounded to four decimal places;

[0326] And the CQI table also satisfies any of the following:

[0327] In the case where the bit rate contains a decimal, the bit rate is determined by rounding up;

[0328] In the case where the bit rate contains a decimal, the bit rate is determined by rounding down;

[0329] In the case where the bit rate contains a decimal, the bit rate is determined by rounding off to the nearest integer;

[0330] In the case that the code rate has a decimal, the code rate is rounded to one decimal place.

[0331] Optionally, the CQI table includes at least two CQI levels corresponding to the 1024QAM modulation mode.

[0332] Optionally, the CQI table includes a first CQI level and a second CQI level corresponding to the 1024QAM modulation mode, the code rate corresponding to the first CQI level is different from the code rate corresponding to the second CQI level, and the spectrum efficiency corresponding to the first CQI level is different from the spectrum efficiency corresponding to the second CQI level.

[0333] Optionally, the code rate corresponding to the first CQI level is 853, and the corresponding spectrum efficiency is 8.3321.

[0334] Optionally, the code rate corresponding to the second CQI level is 948, and the corresponding spectrum efficiency is 9.2578.

[0335] Optionally, the CQI table further includes a third CQI level and a fourth CQI level corresponding to the 1024QAM modulation mode, and the third CQI level and the fourth CQI level are obtained based on the first CQI level and the second CQI level.

[0336] Optionally, the coding rate corresponding to the third CQI level is any one of the following: 805, 806, 805.5, and the spectrum efficiency corresponding to the third CQI level is any one of the following: 7.8613, 7.8711, 7.8662.

[0337] Optionally, the coding rate corresponding to the fourth CQI level is any one of the following: 900, 901, 900.5, and the spectrum efficiency corresponding to the fourth CQI level is any one of the following: 8.7891, 8.7988, 8.7939.

[0338] Optionally, the MCS table satisfies at least one of the following:

[0339] Including the code rate and spectrum efficiency in the CQI table;

[0340] Including an MCS level corresponding to 256QAM in a first MCS table, where the first MCS table is an MCS table including an MCS level corresponding to 256QAM;

[0341] The spectrum efficiency corresponding to each MCS level is equally spaced;

[0342] The target bit rates corresponding to each MCS level are equally spaced;

[0343] The signal-to-noise ratios corresponding to each MCS level are equally spaced;

[0344] The spectral efficiency is rounded to four decimal places;

[0345] The MCS table also satisfies any of the following:

[0346] If the target bit rate is a decimal, the target bit rate is determined by rounding up.

[0347] If the target bit rate is a decimal, the target bit rate is determined by rounding down.

[0348] If the target bit rate is a decimal, the target bit rate is determined by rounding off.

[0349] In the case that the target bit rate is a decimal, the target bit rate is rounded to one decimal place.

[0350] Optionally, the MCS table includes a first MCS level, a second MCS level, a third MCS level, a fourth MCS level corresponding to a modulation mode with a modulation order of 10, and a fifth MCS level for retransmission.

[0351] Optionally, the target code rate corresponding to the first MCS level is any one of the following: 805, 806, 805.5, and the spectrum efficiency corresponding to the first MCS level is any one of the following: 7.8613, 7.8711, 7.8662.

[0352] Optionally, the target code rate corresponding to the second MCS level is 853, and the spectrum efficiency corresponding to the second MCS level is 8.3301.

[0353] Optionally, the code rate corresponding to the third MCS level is any one of the following: 900, 901, 900.5, and the spectrum efficiency corresponding to the third MCS level is any one of the following: 8.7891, 8.7988, 8.7939.

[0354] Optionally, the target code rate corresponding to the fourth MCS level is 948, and the spectrum efficiency corresponding to the fourth MCS level is 9.2578.

[0355] 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 mode with a modulation order of 10.

[0356] Optionally, the target code rate corresponding to the sixth MCS level is any one of the following: 781, 783, 781.5, 782, and the spectrum efficiency corresponding to the sixth MCS level is any one of the following: 7.627, 7.6465, 7.6318, 7.6367.

[0357] Optionally, the target code rate corresponding to the seventh MCS level is any one of the following: 828, 830, 829.5, and the spectrum efficiency corresponding to the seventh MCS level is any one of the following: 8.0859, 8.1055, 8.1006.

[0358] Optionally, the target code rate corresponding to the eighth MCS level is any one of the following: 876, 877, 876.5, and the spectrum efficiency corresponding to the eighth MCS level is any one of the following: 8.5547, 8.5645, 8.5596.

[0359] Optionally, the target code rate corresponding to the ninth MCS level is any one of the following: 924, 925, 924.5, and the spectrum efficiency corresponding to the ninth MCS level is any one of the following: 9.0234, 9.0332, 9.0283.

[0360] Optionally, the MCS table is applicable to at least one of the following:

[0361] A physical downlink shared channel PDSCH scheduled by a physical downlink control channel PDCCH in a first downlink control information format scrambled by a cell radio network temporary identifier C-RNTI or a configured scheduling CS-RNTI for cyclic redundancy check CRC;

[0362] PDSCH scheduled by the PDCCH of the second DCI format that is CRC-scrambled by the C-RNTI or CS-RNTI;

[0363] The physical uplink shared channel PUSCH scheduled by the third DCI format with CRC scrambled by C-RNTI or CS-RNTI, or the grant-free PUSCH configured by radio resource control RRC signaling.

[0364] Optionally, the first indication information and the second indication information are sent via higher layer signaling; and the third indication information is sent via indication information in downlink control information DCI.

[0365] Optionally, the MCS indication information transmission device 500 further includes:

[0366] The first sending module is used to send fourth indication information to the first communication device, where the fourth indication information is used to indicate whether the MCS indication information transmission device has the ability to support 1024QAM.

[0367] Optionally, the fourth indication information is reported using any one of the following granularities:

[0368] Each frequency band;

[0369] frequency band combination;

[0370] Carrier characteristic set FSPC.

[0371] 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 the modulation mode and code rate corresponding to the modulation order of 10 for its scheduled channel, so that the communication system can support higher-order modulation, ensuring that the communication system can have a higher data throughput in a high signal-to-noise ratio communication scenario, thereby improving the transmission efficiency of the communication system.

[0372] The MCS indication information transmission device 500 in the embodiment of the present application can be a device, or a component, integrated circuit, or chip in a terminal. The device can be a mobile terminal or a non-mobile terminal. For example, mobile terminals can include, but are not limited to, the types of terminals 11 listed above. Non-mobile terminals can include servers, network attached storage (NAS), personal computers (PCs), televisions (TVs), ATMs, or self-service kiosks, etc., and are not specifically limited in the embodiment of the present application.

[0373] The MCS indication information transmission device 500 in the embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiment of the present application.

[0374] The MCS indication information transmission device 500 provided in the embodiment of the present application can achieve Figure 4 The various processes implemented by the method embodiment achieve the same technical effects, and to avoid repetition, they will not be described here.

[0375] Optional, such as Figure 6 As shown, 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 executable on the processor 601. For example, when the communication device 600 is a first communication device, the program or instruction is executed by the processor 601 to implement the above Figure 1 When the communication device 600 is a second communication device, the program or instruction is executed by the processor 601 to implement the above Figure 2 The various processes of the method embodiment can achieve the same technical effect, and to avoid repetition, they will not be described here.

[0376] Figure 7 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0377] The terminal 700 includes 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 at least some of the components of a processor 710.

[0378] Those skilled in the art will understand that the terminal 700 may also include a power supply (such as a battery) to power each component, and the power supply may be logically connected to the processor 710 through a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system. Figure 7 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be repeated here.

[0379] It should be understood that in an embodiment of the present application, the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042, and the graphics processor 7041 processes the image data of a static picture or video obtained by an image capture device (such as 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 configured 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. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and an operating stick, which will not be repeated here.

[0380] In this embodiment of the present application, the radio frequency unit 701 receives downlink data from the network-side device and transmits it to the processor 710 for processing. Furthermore, the radio frequency unit 701 transmits uplink data to the network-side device. Typically, 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, and the like.

[0381] The memory 709 can 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, wherein the program or instruction storage area may store an operating system, at least one application program or instruction required for a function (such as a sound playback function, an image playback function, etc.). In addition, the memory 709 may include a high-speed random access memory and may also include a non-volatile memory, wherein 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, at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device.

[0382] Processor 710 may include one or more processing units. Optionally, processor 710 may integrate an application processor and a modem processor. The application processor primarily processes the operating system, user interface, and application programs or instructions, while the modem processor primarily processes wireless communications, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 710.

[0383] In the embodiment of the present application, the terminal 700 can serve as the second communication device. When the terminal 700 has the capability to support 1024QAM, the radio frequency unit 701 is configured to receive the first indication information, the second indication information, and the third indication information sent by the first communication device;

[0384] The first indication information is used to indicate the modulation and coding strategy MCS table used by the terminal 700 for data transmission, and the MCS table includes the MCS level corresponding to the modulation mode with a modulation order of 10;

[0385] The second indication information is used to instruct the terminal 700 to use a CQI table for channel quality indication CQI feedback, where the CQI table includes a CQI level corresponding to a 1024QAM modulation mode;

[0386] The third indication information is used to determine the MCS level corresponding to the channel received or sent by the terminal 700 according to the MCS table.

[0387] Optionally, the CQI table satisfies at least one of the following:

[0388] Including a CQI level corresponding to 256QAM in a first CQI table, where the first CQI table is a CQI table including the CQI level corresponding to 256QAM;

[0389] The spectrum efficiency corresponding to each CQI level is equally spaced;

[0390] The code rates corresponding to each CQI level are equally spaced;

[0391] The signal-to-noise ratios corresponding to each CQI level are equally spaced;

[0392] The spectral efficiency is rounded to four decimal places;

[0393] And the CQI table also satisfies any of the following:

[0394] In the case where the bit rate contains a decimal, the bit rate is determined by rounding up;

[0395] In the case where the bit rate contains a decimal, the bit rate is determined by rounding down;

[0396] In the case where the bit rate contains a decimal, the bit rate is determined by rounding off to the nearest integer;

[0397] In the case that the code rate has a decimal, the code rate is rounded to one decimal place.

[0398] Optionally, the CQI table includes at least two CQI levels corresponding to the 1024QAM modulation mode.

[0399] Optionally, the CQI table includes a first CQI level and a second CQI level corresponding to the 1024QAM modulation mode, the code rate corresponding to the first CQI level is different from the code rate corresponding to the second CQI level, and the spectrum efficiency corresponding to the first CQI level is different from the spectrum efficiency corresponding to the second CQI level.

[0400] Optionally, the code rate corresponding to the first CQI level is 853, and the corresponding spectrum efficiency is 8.3321.

[0401] Optionally, the code rate corresponding to the second CQI level is 948, and the corresponding spectrum efficiency is 9.2578.

[0402] Optionally, the CQI table further includes a third CQI level and a fourth CQI level corresponding to the 1024QAM modulation mode, and the third CQI level and the fourth CQI level are obtained based on the first CQI level and the second CQI level.

[0403] Optionally, the coding rate corresponding to the third CQI level is any one of the following: 805, 806, 805.5, and the spectrum efficiency corresponding to the third CQI level is any one of the following: 7.8613, 7.8711, 7.8662.

[0404] Optionally, the coding rate corresponding to the fourth CQI level is any one of the following: 900, 901, 900.5, and the spectrum efficiency corresponding to the fourth CQI level is any one of the following: 8.7891, 8.7988, 8.7939.

[0405] Optionally, the MCS table satisfies at least one of the following:

[0406] Including the code rate and spectrum efficiency in the CQI table;

[0407] Including an MCS level corresponding to 256QAM in a first MCS table, where the first MCS table is an MCS table including an MCS level corresponding to 256QAM;

[0408] The spectrum efficiency corresponding to each MCS level is equally spaced;

[0409] The target bit rates corresponding to each MCS level are equally spaced;

[0410] The signal-to-noise ratios corresponding to each MCS level are equally spaced;

[0411] The spectral efficiency is rounded to four decimal places;

[0412] The MCS table also satisfies any of the following:

[0413] If the target bit rate is a decimal, the target bit rate is determined by rounding up.

[0414] If the target bit rate is a decimal, the target bit rate is determined by rounding down.

[0415] If the target bit rate is a decimal, the target bit rate is determined by rounding off.

[0416] In the case that the target bit rate is a decimal, the target bit rate is rounded to one decimal place.

[0417] Optionally, the MCS table includes a first MCS level, a second MCS level, a third MCS level, a fourth MCS level corresponding to a modulation mode with a modulation order of 10, and a fifth MCS level for retransmission.

[0418] Optionally, the target code rate corresponding to the first MCS level is any one of the following: 805, 806, 805.5, and the spectrum efficiency corresponding to the first MCS level is any one of the following: 7.8613, 7.8711, 7.8662.

[0419] Optionally, the target code rate corresponding to the second MCS level is 853, and the spectrum efficiency corresponding to the second MCS level is 8.3301.

[0420] Optionally, the code rate corresponding to the third MCS level is any one of the following: 900, 901, 900.5, and the spectrum efficiency corresponding to the third MCS level is any one of the following: 8.7891, 8.7988, 8.7939.

[0421] Optionally, the target code rate corresponding to the fourth MCS level is 948, and the spectrum efficiency corresponding to the fourth MCS level is 9.2578.

[0422] 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 mode with a modulation order of 10.

[0423] Optionally, the target code rate corresponding to the sixth MCS level is any one of the following: 781, 783, 781.5, 782, and the spectrum efficiency corresponding to the sixth MCS level is any one of the following: 7.627, 7.6465, 7.6318, 7.6367.

[0424] Optionally, the target code rate corresponding to the seventh MCS level is any one of the following: 828, 830, 829.5, and the spectrum efficiency corresponding to the seventh MCS level is any one of the following: 8.0859, 8.1055, 8.1006.

[0425] Optionally, the target code rate corresponding to the eighth MCS level is any one of the following: 876, 877, 876.5, and the spectrum efficiency corresponding to the eighth MCS level is any one of the following: 8.5547, 8.5645, 8.5596.

[0426] Optionally, the target code rate corresponding to the ninth MCS level is any one of the following: 924, 925, 924.5, and the spectrum efficiency corresponding to the ninth MCS level is any one of the following: 9.0234, 9.0332, 9.0283.

[0427] Optionally, the MCS table is applicable to at least one of the following:

[0428] A physical downlink shared channel PDSCH scheduled by a physical downlink control channel PDCCH in a first downlink control information format scrambled by a cell radio network temporary identifier C-RNTI or a configured scheduling CS-RNTI for cyclic redundancy check CRC;

[0429] PDSCH scheduled by the PDCCH of the second DCI format that is CRC-scrambled by the C-RNTI or CS-RNTI;

[0430] The physical uplink shared channel PUSCH scheduled by the third DCI format with CRC scrambled by C-RNTI or CS-RNTI, or the grant-free PUSCH configured by radio resource control RRC signaling.

[0431] Optionally, the first indication information and the second indication information are sent via higher layer signaling; and the third indication information is sent via indication information in downlink control information DCI.

[0432] Optionally, the radio frequency unit 701 is further used to send fourth indication information to the first communication device, where the fourth indication information is used to indicate whether the MCS indication information transmission device has the capability to support 1024QAM.

[0433] Optionally, the fourth indication information is reported using any one of the following granularities:

[0434] Each frequency band;

[0435] frequency band combination;

[0436] Carrier characteristic set FSPC.

[0437] In an embodiment of the present application, when the terminal 700 has the ability to support 1024QAM, it can use the modulation mode and code rate corresponding to the modulation order of 10 for its scheduled channel, so that the communication system can support higher-order modulation, ensuring that the communication system can have a higher data throughput in a high signal-to-noise ratio communication scenario, thereby improving the transmission efficiency of the communication system.

[0438] Specifically, the embodiment of the present application also provides a network side device. Figure 8 As shown, network device 800 includes an antenna 81, a radio frequency device 82, and a baseband device 83. Antenna 81 is connected to radio frequency device 82. In the uplink direction, radio frequency device 82 receives information via antenna 81 and sends the received information to baseband device 83 for processing. In the downlink direction, baseband device 83 processes the information to be transmitted and sends it to radio frequency device 82. Radio frequency device 82 processes the received information and then sends it through antenna 81.

[0439] The frequency band processing device may be located in the baseband device 83 . The method executed by the network-side device in the above embodiment may be implemented in the baseband device 83 . The baseband device 83 includes a processor 84 and a memory 85 .

[0440] The baseband device 83 may include, for example, at least one baseband board on which a plurality of chips are arranged, such as Figure 8 As shown, one of the chips is, for example, a processor 84, which is connected to a memory 85 to call a program in the memory 85 and execute the network device operations shown in the above method embodiment.

[0441] The baseband device 83 may further include a network interface 86 for exchanging information with the radio frequency device 82 . The interface may be, for example, a common public radio interface (CPRI).

[0442] Specifically, the network side device of the embodiment of the present invention further includes: instructions or programs stored in the memory 85 and executable on the processor 84, and the processor 84 calls the instructions or programs in the memory 85 to execute. Figure 3 The methods executed by the modules shown achieve the same technical effects, so they will not be described here to avoid repetition.

[0443] The embodiment of the present application also provides a readable storage medium on which a program or instruction is stored, and when the program or instruction is executed by the processor, the above Figure 2 Each process of the method embodiment, or the implementation of the above Figure 4 The various processes of the method embodiment can achieve the same technical effect, and to avoid repetition, they will not be described here.

[0444] 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), random access memory (RAM), a magnetic disk, or an optical disk.

[0445] The embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a network side device program or instruction to implement the above Figure 2 Each process of the method embodiment, or the implementation of the above Figure 4 The various processes of the method embodiment can achieve the same technical effect, and to avoid repetition, they will not be described here.

[0446] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0447] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0448] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0449] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A method for transmitting modulation and coding scheme (MCS) indication information, performed by a first communication device, characterized in that: include: receiving fourth indication information reported by the second communication device, where the fourth indication information is used to indicate whether the second communication device has a capability of supporting 1024QAM; When the second communication device has a capability of supporting 1024 quadrature amplitude modulation (QAM), sending first indication information, second indication information, and third indication information to the second communication device; The first indication information is used to indicate a modulation and coding strategy (MCS) table used by the second communication device for data reception, wherein the MCS table includes an MCS level corresponding to a modulation mode with a modulation order of 10; The second indication information is used to indicate a CQI table used by the second communication device for channel quality indication CQI feedback, where the CQI table includes a CQI level corresponding to a 1024QAM modulation mode; The third indication information is used to determine the MCS level corresponding to the channel received by the second communication device according to 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 corresponding to a modulation mode with a modulation order of 10; The target code rate corresponding to the first MCS level is 805.5, and the spectrum efficiency corresponding to the first MCS level is 7.8662; The target code rate corresponding to the second MCS level is 853, and the spectrum efficiency corresponding to the second MCS level is 8.3301; The target code rate corresponding to the third MCS level is 90.5, and the spectrum efficiency corresponding to the third MCS level is 8.7939; The target code rate corresponding to the fourth MCS level is 948, and the spectrum efficiency corresponding to the fourth MCS level is 9.2578; The fourth indication information is reported with a frequency band or a frequency band combination as a granularity.

2. The method according to claim 1, characterized in that The CQI table satisfies at least one of the following: Including a CQI level corresponding to 256QAM in a first CQI table, where the first CQI table is a CQI table including the CQI level corresponding to 256QAM; The spectrum efficiency corresponding to each CQI level is equally spaced; The code rates corresponding to each CQI level are equally spaced; The signal-to-noise ratios corresponding to each CQI level are equally spaced; The spectral efficiency is rounded to four decimal places; And the CQI table also satisfies any of the following: In the case where the bit rate contains a decimal, the bit rate is determined by rounding up; In the case where the bit rate contains a decimal, the bit rate is determined by rounding down; In the case where the bit rate contains a decimal, the bit rate is determined by rounding off to the nearest integer; If the code rate is a decimal, it is rounded to one decimal place.

3. The method according to claim 2, characterized in that The CQI table includes at least two CQI levels corresponding to the 1024QAM modulation mode.

4. The method according to claim 3, characterized in that The CQI table includes a first CQI level and a second CQI level corresponding to the 1024QAM modulation mode, the code rate corresponding to the first CQI level is different from the code rate corresponding to the second CQI level, and the spectrum efficiency corresponding to the first CQI level is different from the spectrum efficiency corresponding to the second CQI level.

5. The method according to claim 4, characterized in that The code rate corresponding to the first CQI level is 853, and the corresponding spectrum efficiency is 8.3321.

6. The method according to claim 4, characterized in that The code rate corresponding to the second CQI level is 948, and the corresponding spectrum efficiency is 9.2578.

7. The method according to any one of claims 4 to 6, characterized in that The CQI table also includes a third CQI level and a fourth CQI level corresponding to the 1024QAM modulation mode, and the third CQI level and the fourth CQI level are obtained based on the first CQI level and the second CQI level.

8. The method according to claim 7, characterized in that The coding rate corresponding to the third CQI level is any one of the following: 805, 806, 805.5, and the spectrum efficiency corresponding to the third CQI level is any one of the following: 7.8613, 7.8711, 7.8662.

9. The method according to claim 7, characterized in that The coding rate corresponding to the fourth CQI level is any one of the following: 900, 901, 900.5, and the spectrum efficiency corresponding to the fourth CQI level is any one of the following: 8.7891, 8.7988, 8.7939.

10. The method according to claim 1, characterized in that The MCS table satisfies at least one of the following: Including the code rate and spectrum efficiency in the CQI table; Including an MCS level corresponding to 256QAM in a first MCS table, where the first MCS table is an MCS table including an MCS level corresponding to 256QAM; The spectrum efficiency corresponding to each MCS level is equally spaced; The target bit 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 to four decimal places; The MCS table also satisfies any of the following: If the target bit rate is a decimal, the target bit rate is determined by rounding up. If the target bit rate is a decimal, the target bit rate is determined by rounding down. If the target bit rate is a decimal, the target bit rate is determined by rounding off. In the case that the target bit rate is a decimal, the target bit rate is rounded to one decimal place.

11. The method according to claim 1 or 10, characterized in that The MCS table also includes a sixth MCS level, a seventh MCS level, an eighth MCS level, and a ninth MCS level corresponding to a modulation mode with a modulation order of 10.

12. The method according to claim 11, characterized in that The target code rate corresponding to the sixth MCS level is any one of the following: 781, 783, 781.5, 782, and the spectrum efficiency corresponding to the sixth MCS level is any one of the following: 7.627, 7.6465, 7.6318, 7.6367.

13. The method according to claim 11, characterized in that The target code rate corresponding to the seventh MCS level is any one of the following: 828, 830, 829.5, and the spectrum efficiency corresponding to the seventh MCS level is any one of the following: 8.0859, 8.1055, 8.1006.

14. The method according to claim 11, characterized in that The target code rate corresponding to the eighth MCS level is any one of the following: 876, 877, 876.5, and the spectrum efficiency corresponding to the eighth MCS level is any one of the following: 8.5547, 8.5645, 8.5596.

15. The method according to claim 11, characterized in that The target code rate corresponding to the ninth MCS level is any one of the following: 924, 925, 924.5, and the spectrum efficiency corresponding to the ninth MCS level is any one of the following: 9.0234, 9.0332, 9.0283.

16. The method according to claim 1, wherein The MCS table applies to at least one of the following: A physical downlink shared channel PDSCH scheduled by a physical downlink control channel PDCCH in a first downlink control information format scrambled by a cell radio network temporary identifier C-RNTI or a configured scheduling CS-RNTI for cyclic redundancy check CRC; PDSCH scheduled by the PDCCH of the second DCI format that is CRC-scrambled by the C-RNTI or CS-RNTI; The physical uplink shared channel PUSCH scheduled by the third DCI format with CRC scrambled by C-RNTI or CS-RNTI, or the grant-free PUSCH configured by radio resource control RRC signaling.

17. The method according to claim 1, wherein The first indication information and the second indication information are sent via high-layer signaling; and the third indication information is sent via indication information in downlink control information DCI.

18. The method according to claim 1, wherein The first indication information is further used to indicate a modulation and coding strategy (MCS) table used by the second communication device for data transmission, wherein the MCS table includes an MCS level corresponding to a modulation mode with a modulation order of 10; The third indication information is further used to determine the MCS level corresponding to the channel sent by the second communication device according to the MCS table.

19. A method for transmitting modulation and coding scheme (MCS) indication information, performed by a second communication device, characterized in that: include: Sending fourth indication information to the first communication device, where the fourth indication information is used to indicate whether the second communication device has a capability of supporting 1024QAM; When the second communication device has a capability of supporting 1024 quadrature amplitude modulation (QAM), receiving first indication information, second indication information, and third indication information sent by the first communication device; The first indication information is used to indicate a modulation and coding strategy (MCS) table used by the second communication device for data reception, wherein the MCS table includes an MCS level corresponding to a modulation mode with a modulation order of 10; The second indication information is used to indicate a CQI table used by the second communication device for channel quality indication CQI feedback, where the CQI table includes a CQI level corresponding to a 1024QAM modulation mode; The third indication information is used to determine the MCS level corresponding to the channel received by the second communication device according to 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 corresponding to a modulation mode with a modulation order of 10; The target code rate corresponding to the first MCS level is 805.5, and the spectrum efficiency corresponding to the first MCS level is 7.8662; The target code rate corresponding to the second MCS level is 853, and the spectrum efficiency corresponding to the second MCS level is 8.3301; The target code rate corresponding to the third MCS level is 90.5, and the spectrum efficiency corresponding to the third MCS level is 8.7939; The target code rate corresponding to the fourth MCS level is 948, and the spectrum efficiency corresponding to the fourth MCS level is 9.2578; The fourth indication information is reported with a frequency band or a frequency band combination as a granularity.

20. The method according to claim 19, characterized in that The CQI table satisfies at least one of the following: Including a CQI level corresponding to 256QAM in a first CQI table, where the first CQI table is a CQI table including the CQI level corresponding to 256QAM; The spectrum efficiency corresponding to each CQI level is equally spaced; The code rates corresponding to each CQI level are equally spaced; The signal-to-noise ratios corresponding to each CQI level are equally spaced; The spectral efficiency is rounded to four decimal places; And the CQI table also satisfies any of the following: In the case where the bit rate contains a decimal, the bit rate is determined by rounding up; In the case where the bit rate contains a decimal, the bit rate is determined by rounding down; In the case where the bit rate contains a decimal, the bit rate is determined by rounding off to the nearest integer; In the case that the code rate has a decimal, the code rate is rounded to one decimal place.

21. The method according to claim 20, characterized in that The CQI table includes at least two CQI levels corresponding to the 1024QAM modulation mode.

22. The method according to claim 21, characterized in that The CQI table includes a first CQI level and a second CQI level corresponding to the 1024QAM modulation mode, the code rate corresponding to the first CQI level is different from the code rate corresponding to the second CQI level, and the spectrum efficiency corresponding to the first CQI level is different from the spectrum efficiency corresponding to the second CQI level.

23. The method according to claim 22, characterized in that The code rate corresponding to the first CQI level is 853, and the corresponding spectrum efficiency is 8.3321.

24. The method according to claim 22, characterized in that The code rate corresponding to the second CQI level is 948, and the corresponding spectrum efficiency is 9.2578.

25. The method according to any one of claims 22 to 24, characterized in that The CQI table also includes a third CQI level and a fourth CQI level corresponding to the 1024QAM modulation mode, and the third CQI level and the fourth CQI level are obtained based on the first CQI level and the second CQI level.

26. The method according to claim 25, characterized in that The coding rate corresponding to the third CQI level is any one of the following: 805, 806, 805.5, and the spectrum efficiency corresponding to the third CQI level is any one of the following: 7.8613, 7.8711, 7.8662.

27. The method according to claim 25, characterized in that The coding rate corresponding to the fourth CQI level is any one of the following: 900, 901, 900.5, and the spectrum efficiency corresponding to the fourth CQI level is any one of the following: 8.7891, 8.7988, 8.7939.

28. The method according to claim 19, wherein The MCS table satisfies at least one of the following: Including the code rate and spectrum efficiency in the CQI table; Including an MCS level corresponding to 256QAM in a first MCS table, where the first MCS table is an MCS table including an MCS level corresponding to 256QAM; The spectrum efficiency corresponding to each MCS level is equally spaced; The target bit 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 to four decimal places; The MCS table also satisfies any of the following: If the target bit rate is a decimal, the target bit rate is determined by rounding up. If the target bit rate is a decimal, the target bit rate is determined by rounding down. If the target bit rate is a decimal, the target bit rate is determined by rounding off. In the case that the target bit rate is a decimal, the target bit rate is rounded to one decimal place.

29. The method according to claim 19 or 28, characterized in that The MCS table also includes a sixth MCS level, a seventh MCS level, an eighth MCS level, and a ninth MCS level corresponding to a modulation mode with a modulation order of 10.

30. The method according to claim 29, wherein The target code rate corresponding to the sixth MCS level is any one of the following: 781, 783, 781.5, 782, and the spectrum efficiency corresponding to the sixth MCS level is any one of the following: 7.627, 7.6465, 7.6318, 7.6367.

31. The method according to claim 29, wherein The target code rate corresponding to the seventh MCS level is any one of the following: 828, 830, 829.5, and the spectrum efficiency corresponding to the seventh MCS level is any one of the following: 8.0859, 8.1055, 8.1006.

32. The method according to claim 29, wherein The target code rate corresponding to the eighth MCS level is any one of the following: 876, 877, 876.5, and the spectrum efficiency corresponding to the eighth MCS level is any one of the following: 8.5547, 8.5645, 8.5596.

33. The method according to claim 29, wherein The target code rate corresponding to the ninth MCS level is any one of the following: 924, 925, 924.5, and the spectrum efficiency corresponding to the ninth MCS level is any one of the following: 9.0234, 9.0332, 9.0283.

34. The method according to claim 19, wherein The MCS table applies to at least one of the following: A physical downlink shared channel PDSCH scheduled by a physical downlink control channel PDCCH in a first downlink control information format scrambled by a cell radio network temporary identifier C-RNTI or a configured scheduling CS-RNTI for cyclic redundancy check CRC; PDSCH scheduled by the PDCCH of the second DCI format that is CRC-scrambled by the C-RNTI or CS-RNTI; The physical uplink shared channel PUSCH scheduled by the third DCI format with CRC scrambled by C-RNTI or CS-RNTI, or the grant-free PUSCH configured by radio resource control RRC signaling.

35. The method according to claim 19, wherein The first indication information and the second indication information are sent via high-layer signaling; and the third indication information is sent via indication information in downlink control information DCI.

36. The method according to claim 19, wherein The first indication information is further used to indicate a modulation and coding strategy (MCS) table used by the second communication device for data transmission, wherein the MCS table includes an MCS level corresponding to a modulation mode with a modulation order of 10; The third indication information is further used to determine the MCS level corresponding to the channel sent by the second communication device according to the MCS table.

37. A modulation and coding scheme (MCS) indication information transmission device, characterized in that: include: A first receiving module is configured to receive fourth indication information reported by a second communication device, where the fourth indication information is used to indicate whether the second communication device has a capability of supporting 1024QAM; a sending module, configured to send 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); The first indication information is used to indicate a modulation and coding strategy (MCS) table used by the second communication device for data reception, wherein the MCS table includes an MCS level corresponding to a modulation mode with a modulation order of 10; The second indication information is used to indicate a CQI table used by the second communication device for channel quality indication CQI feedback, where the CQI table includes a CQI level corresponding to a 1024QAM modulation mode; The third indication information is used to determine the MCS level corresponding to the channel received by the second communication device according to 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 corresponding to a modulation mode with a modulation order of 10; The target code rate corresponding to the first MCS level is 805.5, and the spectrum efficiency corresponding to the first MCS level is 7.8662; The target code rate corresponding to the second MCS level is 853, and the spectrum efficiency corresponding to the second MCS level is 8.3301; The target code rate corresponding to the third MCS level is 90.5, and the spectrum efficiency corresponding to the third MCS level is 8.7939; The target code rate corresponding to the fourth MCS level is 948, and the spectrum efficiency corresponding to the fourth MCS level is 9.2578; The fourth indication information is reported with a frequency band or a frequency band combination as a granularity.

38. The device according to claim 37, characterized in that The first indication information is further used to indicate a modulation and coding strategy (MCS) table used by the second communication device for data transmission, wherein the MCS table includes an MCS level corresponding to a modulation mode with a modulation order of 10; The third indication information is further used to determine the MCS level corresponding to the channel sent by the second communication device according to the MCS table.

39. A modulation and coding scheme (MCS) indication information transmission device, characterized in that: include: A first sending module is configured to send fourth indication information to the first communication device, where the fourth indication information is used to indicate whether the MCS indication information transmission device has a capability of supporting 1024QAM; a receiving module, configured to receive the first indication information, the second indication information, and the third indication information sent by the first communication device when the MCS indication information transmission device has a capability of supporting 1024 quadrature amplitude modulation (QAM); The first indication information is used to indicate a modulation and coding strategy (MCS) table used by the MCS indication information transmission device for data reception, wherein the MCS table includes an MCS level corresponding to a modulation mode with a modulation order of 10; The second indication information is used to instruct the MCS indication information transmission device to use a CQI table for channel quality indication CQI feedback, where the CQI table includes a CQI level corresponding to a 1024QAM modulation mode; The third indication information is used to determine the MCS level corresponding to the channel received by the MCS indication information transmission device according to 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 corresponding to a modulation mode with a modulation order of 10; The target code rate corresponding to the first MCS level is 805.5, and the spectrum efficiency corresponding to the first MCS level is 7.8662; The target code rate corresponding to the second MCS level is 853, and the spectrum efficiency corresponding to the second MCS level is 8.3301; The target code rate corresponding to the third MCS level is 90.5, and the spectrum efficiency corresponding to the third MCS level is 8.7939; The target code rate corresponding to the fourth MCS level is 948, and the spectrum efficiency corresponding to the fourth MCS level is 9.2578; The fourth indication information is reported with a frequency band or a frequency band combination as a granularity.

40. The device according to claim 39, characterized in that The first indication information is further used to indicate a modulation and coding strategy (MCS) table to be used by the MCS indication information transmission device for data transmission, wherein the MCS table includes an MCS level corresponding to a modulation mode with a modulation order of 10; The third indication information is further used to determine, according to the MCS table, the MCS level corresponding to the channel sent by the MCS indication information transmission device.

41. A communication device, characterized in that The method comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the MCS indication information transmission method according to any one of claims 1 to 18, or implements the steps of the MCS indication information transmission method according to any one of claims 19 to 36.

42. A readable storage medium, characterized in that The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, it implements the steps of the MCS indication information transmission method according to any one of claims 1 to 18, or implements the steps of the MCS indication information transmission method according to any one of claims 19 to 36.

Images