Channel quality reporting, receiving method, device, terminal, service node and medium

Abstract

The present application provides a channel quality reporting and receiving method, device, terminal, service node and medium. The method determines a first channel quality indication CQI set, wherein the first CQI set includes an association relationship between CQI and channel quality parameters; reports CQI based on the first CQI set; wherein the channel quality parameters include at least one of the following: modulation mode, code rate, spectrum efficiency, modulation and coding strategy MCS index, transmission block size TBS index and number of repetitions.

Description

Technical Field

[0001] The present application relates to a wireless communication network, for example, to a channel quality reporting, receiving method, device, terminal, service node and medium. Background Art

[0002] In the air interface standard, downlink data transmission mainly adopts the modulation mode of Quadrature Phase Shift Keying (QPSK), which has a single modulation mode and a limited span of data block size. Therefore, it does not support the reporting of Channel Quality Indicator (CQI) for modulation and coding modes. With the development of New Radio (NR) technology, the modulation modes supported by communication systems have also been expanded, such as supporting Quadrature Amplitude Modulation (QAM). In this case, more modulation and coding schemes (MCS) will be generated, and the network side needs to consider more and more factors in the scheduling and communication process. Since the CQI reporting method is single and inflexible, it cannot be applied to different scenarios of the communication system, and it cannot guarantee that the network side has a comprehensive understanding of the channel quality, which in turn affects the scheduling efficiency and communication performance. Summary of the invention

[0003] The present application provides a channel quality reporting and receiving method, device, terminal, service node and medium to improve the flexibility of CQI reporting.

[0004] The present application provides a channel quality reporting method, including:

[0005] Determine a first CQI set, where the first CQI set includes an association relationship between a CQI and a channel quality parameter, where the channel quality parameter includes at least one of the following: a modulation mode, a code rate, a spectrum efficiency, an MCS index, a transport block size (TBS) index, and a number of repetitions;

[0006] Reporting a CQI based on the first CQI set.

[0007] The embodiment of the present application also provides a channel quality receiving method, including:

[0008] Determine a first CQI set, where the first CQI set includes an association relationship between a CQI and a channel quality parameter, where the channel quality parameter includes at least one of the following: a modulation mode, a code rate, a spectrum efficiency, an MCS index, a TBS index, and a number of repetitions;

[0009] A CQI is received based on the first CQI set.

[0010] The embodiment of the present application also provides a channel quality reporting device, including:

[0011] A first determination module is configured to determine a first CQI set, where the first CQI set includes an association relationship between a CQI and a channel quality parameter, where the channel quality parameter includes at least one of the following: a modulation mode, a code rate, a spectrum efficiency, an MCS index, a TBS index, and a number of repetitions;

[0012] The reporting module is configured to report the CQI based on the first CQI set.

[0013] The embodiment of the present application also provides a channel quality receiving device, including:

[0014] A second determination module is configured to determine a first CQI set, where the first CQI set includes an association relationship between a CQI and a channel quality parameter, where the channel quality parameter includes at least one of the following: a modulation mode, a code rate, a spectrum efficiency, an MCS index, a TBS index, and a number of repetitions;

[0015] The receiving module is configured to receive a CQI based on the first CQI set.

[0016] The present application also provides a terminal, including:

[0017] one or more processors;

[0018] A storage device for storing one or more programs;

[0019] When the one or more programs are executed by the one or more processors, the one or more processors implement the above-mentioned channel quality reporting method.

[0020] The present application also provides a service node, including:

[0021] one or more processors;

[0022] A storage device for storing one or more programs;

[0023] When the one or more programs are executed by the one or more processors, the one or more processors implement the above-mentioned channel quality receiving method.

[0024] An embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the above-mentioned channel quality reporting method or channel quality receiving method is implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A flow chart of a channel quality reporting method provided by an embodiment;

[0026] Figure 2 A flow chart of a channel quality receiving method provided by an embodiment;

[0027] Figure 3 A schematic diagram of the structure of a channel quality reporting device provided by an embodiment;

[0028] Figure 4 A schematic structural diagram of a channel quality receiving device provided by an embodiment;

[0029] Figure 5 A schematic diagram of the hardware structure of a terminal provided by an embodiment;

[0030] Figure 6 A schematic diagram of the hardware structure of a service node provided by an embodiment. DETAILED DESCRIPTION

[0031] The present application is described below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily. It should also be noted that, for ease of description, only the parts related to the present application rather than all structures are shown in the accompanying drawings.

[0032] In an embodiment of the present application, a channel quality reporting method is provided, in which a terminal reports a CQI based on the association between the CQI and a channel quality parameter, thereby improving the flexibility of CQI reporting, and a service node can accurately obtain the channel quality, thereby improving scheduling efficiency and communication performance.

[0033] Figure 1 A flow chart of a channel quality reporting method provided by an embodiment, such as Figure 1 As shown, the method provided in this embodiment includes step 110 and step 120.

[0034] In step 110, a first channel quality indication CQI set is determined, wherein the first CQI set includes an association relationship between CQI and channel quality parameters, wherein the channel quality parameters include at least one of the following: modulation mode, code rate, spectrum efficiency, modulation coding strategy MCS index, transport block size TBS index, and number of repetitions.

[0035] In this embodiment, the code rate can be expressed as the encoding rate multiplied by 1024. For example, if the encoding code rate is 1 / 4, the code rate is equal to 256.

[0036] In this embodiment, the number of repetitions is the number of repetitions of a physical downlink shared channel (PDSCH). In this embodiment, the MCS index and the TBS index are the MCS sequence number and the TBS sequence number.

[0037] In step 120, a CQI is reported based on the first CQI set.

[0038] In this embodiment, the first CQI set can be embodied in the form of a table, and the first CQI set stores the association relationship between the CQI and the channel quality parameter. The terminal obtains the channel quality parameter by measuring the physical channel, and accordingly, the corresponding CQI can be reported to the service node for the service node to make a scheduling decision. Among them, the channel quality parameter may include one or more of the modulation mode, code rate, spectrum efficiency, MCS index, TBS index, and number of repetitions. Different CQIs are represented by different CQI indexes, and reporting CQI means reporting CQI index.

[0039] In this embodiment, the terminal reports CQI based on the first CQI set, and the first CQI set is associated with one or more channel quality parameters. By setting the values ​​of the channel quality parameters corresponding to each CQI, it is reasonably distributed within the possible value range, reflecting different channel qualities as evenly as possible, making the signal-to-noise ratio intervals of the decoding requirements between CQIs uniform, and making each CQI code rate and the corresponding TBS more matched, thereby improving the flexibility of CQI reporting and reporting accurate channel quality. In addition, the first CQI set contains more CQIs corresponding to the 16QAM modulation mode, which is conducive to improving data transmission efficiency under high signal-to-noise ratio conditions. On this basis, the service node can accurately obtain the channel quality fed back by the terminal, thereby improving scheduling efficiency and communication performance.

[0040] In one embodiment, in the first CQI set, there is at least one CQI index, and a code rate associated with the CQI index is equal to an average value of code rates corresponding to two adjacent CQI indexes in a predefined second CQI set.

[0041] In this embodiment, in the first CQI set, there is at least one CQI index, and the code rate corresponding to the CQI index is equal to the average code rate of two adjacent CQIs in the second CQI set, and the second CQI set is predefined.

[0042] In this embodiment, when the average value of the bit rate is equal to a non-integer, the average value of the bit rate can be rounded up or down based on the non-integer value. For example, if the average value of the bit rate is equal to 251.5, then the average value of the bit rate can be 251 or 252.

[0043] Table 1: Association table between CQI index and channel quality parameter in the second CQI set

[0044]

[0045]

[0046] Table 1 is a table of associations between CQI indexes and channel quality parameters in the second CQI set. As shown in Table 1, the standard version predefines the associations between CQI indexes and modulation modes, code rates (the product of the coding rate and 1024) and spectrum efficiency.

[0047] In one embodiment, if the average value of the code rates corresponding to two adjacent CQI indexes in the second CQI set is a non-integer, the code rate associated with the corresponding CQI index in the first CQI set may be equal to the non-integer, or may be a result of rounding up or rounding down based on the non-integer, wherein the code rate may be expressed as the product of the coding rate and 1024. Based on this code rate distribution method, the signal-to-noise ratio intervals required for decoding between CQIs may be made more uniform, and each CQI code rate may be more closely matched to the corresponding TBS.

[0048] For example, the code rate corresponding to a CQI index in the first CQI set is equal to the average of the code rates of CQI 2 and CQI 3 in the second CQI set as shown in Table 1, that is, (120+193) / 2=156.5, which can also be rounded up to 157;

[0049] For another example, the code rate corresponding to a CQI index in the first CQI set is equal to the average of the code rates of CQI 3 and CQI 4 in the second CQI set as shown in Table 1, that is, (193+308) / 2=250.5, which can also be rounded up to 251;

[0050] For another example, the code rate corresponding to a CQI index in the first CQI set is equal to the average of the code rates of CQI 4 and CQI 5 in the second CQI set as shown in Table 1, that is, (308+449) / 2=378.5, which can also be rounded up to 379;

[0051] For another example, the code rate corresponding to a CQI index in the first CQI set is equal to the average of the code rates of CQI 5 and CQI 6 in the second CQI set as shown in Table 1, that is, (449+602) / 2=525.5, which can also be rounded up to 526;

[0052] For another example, the code rate corresponding to a CQI index in the first CQI set is equal to the average of the code rates of CQI 7 and CQI 8 in the second CQI set as shown in Table 1, that is, (378+490) / 2=434;

[0053] For another example, the code rate corresponding to a CQI index in the first CQI set is equal to the average of the code rates of CQI 8 and CQI 9 in the second CQI set as shown in Table 1, that is, (490+616) / 2=553;

[0054] For another example, the code rate corresponding to a CQI index in the first CQI set is equal to the average of the code rates of CQI 12 and CQI 13 in the second CQI set as shown in Table 1, that is, (666+772) / 2=719;

[0055] For another example, the code rate corresponding to a CQI index in the first CQI set is equal to the average of the code rates of CQI 13 and CQI 14 in the second CQI set as shown in Table 1, that is, (772+873) / 2=822.5, which can also be rounded up to 823;

[0056] For another example, the code rate corresponding to a CQI index in the first CQI set is equal to the average of the code rates of CQI 14 and CQI 15 in the second CQI set as shown in Table 1, that is, (873+948) / 2=910.5, which can also be rounded up to 911.

[0057] In one embodiment, in the first CQI set, there is at least one CQI index k, and the code rate associated with the CQI index k is equal to the average value of the code rates corresponding to CQI index k-1 and CQI index k+1 in the first CQI set, where k is greater than 0 and less than 31.

[0058] In this embodiment, in the first CQI set, there is at least one CQI index k, and the code rate of CQI k is equal to the average of the code rates of CQI k-1 and CQI k+1 in the first CQI set, where k is greater than 0 and less than 31.

[0059] Exemplarily, in the first CQI set, the coding rate of CQI k is equal to an average of 156.5 of the coding rate 120 of CQI k-1 and the coding rate 193 of CQI k+1, which may also be rounded up to 157; for example, the coding rate of CQI k is equal to an average of 413.75 of the coding rate 378.5 of CQI k-1 and the coding rate 449 of CQI k+1, which may also be rounded up to 414; for example, the coding rate of CQI k is equal to an average of 434 of the coding rate 378 of CQI k-1 and the coding rate 490 of CQI k+1; for example, the coding rate of CQI k is equal to an average of 719 of the coding rate 666 of CQI k-1 and the coding rate 772 of CQI k+1.

[0060] In one embodiment, in the first CQI set, there is at least one CQI index h, and the code rate associated with the CQI index h is equal to the average value of the code rates corresponding to CQI index h-1 and CQI index h+2 in the first CQI set, where h is greater than 0 and less than 29; or, in the first CQI set, there is at least one CQI index h, and the code rate associated with the CQI index h is equal to the average value of the code rates corresponding to CQI index h-2 and CQI index h+1 in the first CQI set, where h is greater than 1 and less than 30.

[0061] For example, the coding rate of CQI h in the first CQI set is equal to the average of the coding rate 308 of CQI h-1 and the coding rate 449 of CQI h+2, that is, 378.5, which can also be rounded up to 379; for another example, the coding rate of CQI h is equal to the average of the coding rate 490 of CQI h-2 and the coding rate 616 of CQI h+1, that is, 553.

[0062] In one embodiment, the first CQI set includes TBSs 0 to 22, or includes MCSs associated with TBSs 0 to 22.

[0063] Table 2 is a first association table between CQI indexes and channel quality parameters in the first CQI set. The table of the first CQI set may include at least two columns including the CQI indexes in Table 2. It should be noted that in Table 2, TBS 0 to TBS22 may also be replaced with MCS indexes associated with TBS 0 to TBS22. In this case, the header of the last column in Table 2 is replaced with the MCS index, and the first CQI set may be used to reflect the association between the CQI index and at least one channel quality parameter in the modulation mode, code rate, spectrum efficiency, and MCS index.

[0064] Table 2: First association relationship table between CQI index and channel quality parameter in the first CQI set

[0065]

[0066]

[0067] In one embodiment, the difference between the code rates corresponding to any two adjacent CQIs associated with the second modulation mode in the first CQI set is less than the difference between the code rates corresponding to any two adjacent CQIs associated with the second modulation mode in the second CQI set. For example, as shown in Table 2, the difference between the code rates corresponding to any two adjacent 16QAM CQIs in Table 2 is less than the difference between the code rates corresponding to any two adjacent 16QAM CQIs in Table 1.

[0068] Table 3 is a second association relationship table between CQI index and channel quality parameter in the first CQI set. The table of the first CQI set may include at least two columns including the CQI index in Table 3. It should be noted that in Table 3, TBS 0 to TBS22 may also be replaced by the MCS index associated with TBS 0 to TBS22. In this case, the header of the last column in Table 3 is replaced by the MCS index. As shown in Table 3, the first CQI set is a 4-bit table, that is, the first CQI set includes 16 CQIs.

[0069] In Table 3, the first CQI set includes at least one CQI index, and the code rate corresponding to the CQI index is equal to the average value (or the result of rounding up) of the code rates corresponding to two adjacent CQI indexes in the second CQI set (as shown in Table 1). For example, in Table 3, the code rate of CQI 2 is equal to the average of the code rate 120 of CQI 2 and the code rate 193 of CQI 3 in the second CQI set, that is, 156.5, which can also be rounded up to 157; the code rate of CQI 3 is equal to the average of the code rate 193 of CQI 3 and the code rate 308 of CQI 4 in the second CQI set, that is, 250.5, which can also be rounded up to 251; the code rate of CQI 4 is equal to the average of the code rate 308 of CQI 4 and the code rate 449 of CQI 5 in the second CQI set, that is, 378.5, which can also be rounded up to 379; the code rate of CQI 9 is equal to the average of the code rate 490 of CQI 8 and the code rate 616 of CQI 9 in the second CQI set, that is, 553; the code rate of CQI 12 ... The coding rate of CQI 14 is equal to the average of the coding rate 772 of CQI 13 and the coding rate 873 of CQI 14 in the second CQI set, that is, 822.5, which can also be rounded up to 823; the coding rate of CQI 15 is equal to the average of the coding rate 873 of CQI 14 and the coding rate 948 of CQI 15 in the second CQI set, that is, 910.5, which can also be rounded up to 911.

[0070] Table 3 Second association relationship table between CQI index and channel quality parameter in the first CQI set

[0071]

[0072]

[0073] In Table 3, the first CQI set includes at least one CQI index k, and the code rate corresponding to the CQI index is equal to the average of the code rate of CQI k-1 and the code rate of CQI k+1, where k is greater than 0 and less than 31. For example, in Table 3, k=9, the code rate of CQI 9 is equal to the average of 553 of the code rate 490 of CQI 8 and the code rate 616 of CQI 10; for another example, k=12, the code rate of CQI 12 is equal to the average of 719 of the code rate 666 of CQI 11 and the code rate 772 of CQI 13.

[0074] In one embodiment, in the first CQI set, the difference between TBS indexes associated with every two adjacent CQI indexes associated with the first modulation mode is 2.

[0075] In this embodiment, the first modulation mode is QPSK. For the out-band deployment mode or the standalone deployment mode, in the first CQI set, the TBS index interval associated with each two adjacent CQI indexes of the QPSK modulation mode is 1, that is, the difference between the TBS indexes is 2. As shown in Table 3, CQI 1 to CQI 6 are associated with the QPSK modulation mode, and the corresponding TBS index interval is 1.

[0076] In one embodiment, in the first CQI set, each CQI is associated with an MCS index, and each MCS index is associated with a TBS index.

[0077] In this embodiment, the CQI index and the TBS index may be indirectly associated, for example, the CQI index is associated with the MCS index, and the MCS index is associated with the TBS index. On this basis, the TBS index associated with each CQI index can be determined. For another example, the CQI index corresponds to the bit rate. According to the bit rate and 1520 resource elements (RE), according to the formula The TBS can be calculated to obtain the corresponding TBS index, thereby determining the TBS index associated with each CQI index. Where S is the TBS, that is, the number of bits in the transport block, C is the coding rate multiplied by 1024, and m is the modulation order, QPSK modulation order m=2, 16QAM modulation order m=4, 64QAM modulation order m=6.

[0078] In this embodiment, the modulation mode associated with the CQI index may also be determined according to the MCS index. For example, the CQI index is associated with the MCS index, and the MCS index is associated with the modulation mode. On this basis, the modulation mode associated with each CQI may be determined.

[0079] In one embodiment, in the first CQI set, there are N CQI indexes associated with the second modulation mode, and among the N CQI indexes associated with the second modulation mode, the difference between TBS indexes associated with every two adjacent CQI indexes is 1, where N is greater than or equal to 2.

[0080] In this embodiment, the second modulation mode is 16QAM. In the first CQI set, there are N CQIs of 16QAM modulation mode, wherein the interval of TBS indexes associated with each two adjacent 16QAM CQI indexes is 0, that is, the difference between the TBS indexes is 1, and N is greater than or equal to 2. For example, in Table 3, the difference between the TBS indexes associated with CQI 9 to CQI 15 is 1, and N=7.

[0081] In one embodiment, the N CQIs associated with the second modulation mode are the N CQIs with the largest indexes in the first CQI set.

[0082] As shown in Table 3, there are 16 CQIs in the first CQI set, namely CQI 0 to CQI 15, wherein 7 CQIs associated with 16QAM are CQI 9 to CQI 15.

[0083] In one embodiment, in the first CQI set, the TBS index associated with the CQI with the largest index is 21 or 22.

[0084] In this embodiment, for the out-of-band deployment mode or the independent deployment mode, in the first CQI set, the largest CQI index is associated with TBS index 21 or TBS index 22 (as shown in Table 3).

[0085] In one embodiment, in the first CQI set, P CQI indexes are sequentially associated with TBS indexes 0 to P-1, where the value of P is 22 or 23.

[0086] For example, in the first CQI set, 22 CQI indexes (CQI 1 to CQI 22) are sequentially associated with TBS indexes 0 to 21, or, as shown in Table 3, 23 CQI indexes (CQI 1 to 23) are sequentially associated with TBS indexes 0 to 22.

[0087] In one embodiment, the first CQI set is a 4-bit table, that is, the first CQI set includes 16 CQI indexes, among which 15 CQI indexes are associated with 15 MCS indexes among 16 MCS indexes (MCS 0 to MCS 15).

[0088] Table 4 The third association relationship table between CQI index and channel quality parameter in the first CQI set

[0089] CQI Index MCS Index 0 Out of range 1 0 2 1 3 2 4 3 5 4 6 5 7 6 8 7 9 8 10 9 11 10 12 11 13 12 14 13 15 14

[0090] Table 5 The fourth association relationship table between CQI index and channel quality parameter in the first CQI set

[0091]

[0092]

[0093] Table 4 is a third association relationship table of CQI indexes and channel quality parameters in the first CQI set. As shown in Table 4, the first CQI set includes 16 CQI indexes, of which 15 CQI indexes are associated with MCS 0 to MCS14 respectively.

[0094] Table 5 is a fourth association relationship table of CQI indexes and channel quality parameters in the first CQI set. As shown in Table 5, the first CQI set includes 16 CQI indexes, of which 15 CQI indexes are associated with MCS1 to MCS15 respectively.

[0095] In one embodiment, 15 CQI indices are associated with MCS indices 0, 1, ..., j-1, j+1 ... 15, wherein the difference between the TBS indices associated with MCS j+1 and MCS j-1 is 2. For example, MCS j-1 is associated with TBS m, and MCS j+1 is associated with TBS n, then nm=2.

[0096] In one embodiment, the first CQI set includes M CQIs, where M is greater than 16; among the M CQIs, M-1 CQI indexes are associated with MCS indexes 0 to M-2.

[0097] In this embodiment, the TBS index range associated with MCS indexes 0 to M-2 is 0 to 21, or 0 to 22. For example, the TBS index range associated with CQI 1 to CQI 22 in the first CQI set is 0 to 21, or the TBS index range associated with CQI 1 to CQI 23 is 0 to 22.

[0098] In one embodiment, the first CQI set includes M CQI indexes, where M is greater than or equal to 8; among the M CQI indexes, M-1 CQI indexes are respectively associated with M-1 MCS indexes from MCS index 0 to MCS index M-1.

[0099] For example, the first CQI set includes 16 CQI indexes, 15 of which are respectively associated with 15 MCS indexes from MCS 0 to MCS15.

[0100] In one embodiment, the first CQI set includes M CQI indexes, where M is greater than or equal to 8; among the M CQI indexes, M-1 CQI indexes are respectively associated with MCS index 0 to MCS index M-2.

[0101] For example, the first CQI set includes 16 CQI indexes, 15 of which are associated with MCS 0 to MCS14, respectively.

[0102] In one embodiment, for an in-band deployment mode, the reported CQI is less than or equal to a CQI index associated with a TBS index L, where L is equal to 16 or 17.

[0103] For example, L=16, TBS16 corresponds to CQI 9, and the CQI reported by the terminal may be one of CQI 0 to CQI 9.

[0104] For another example, L=17, TBS17 corresponds to CQI 10, and the CQI reported by the terminal may be one of CQI 0 to CQI 10.

[0105] In one embodiment, in the first CQI set, there is at least one CQI subset, each CQI associated in the CQI subset has the same MCS index or TBS index or code rate, and each CQI associated in the CQI subset has a different number of repetitions.

[0106] In this embodiment, in the first CQI set, there may be one or more of the above-mentioned CQI subsets.

[0107] For example, a CQI subset includes CQI 2 and CQI 4, and the MCS index associated with CQI 2 and CQI 4 is the same, but the corresponding number of repetitions is different; for another example, a CQI subset includes CQI 5 and CQI 7, and the TBS index associated with CQI 5 and CQI 7 is the same, but the corresponding number of repetitions is different.

[0108] In this embodiment, the table of the first CQI set includes the number of repetitions and one of the following: MCS index, TBS index, code rate, and modulation mode.

[0109] In this embodiment, the number of repetitions is the number of repetitions of a physical downlink shared channel (PDSCH).

[0110] Table 6 is a fifth association relationship table of CQI indexes and channel quality parameters in the first CQI set. The table of the first CQI set may include at least three columns including the CQI indexes in Table 6.

[0111] Table 6 The fifth association relationship table between CQI index and channel quality parameter in the first CQI set

[0112]

[0113] Table 7 Sixth association relationship table between CQI index and channel quality parameter in the first CQI set

[0114]

[0115]

[0116] Table 7 is a sixth association relationship table of CQI indexes and channel quality parameters in the first CQI set. The table of the first CQI set may include at least three columns including the CQI indexes in Table 7.

[0117] In one embodiment, in the first CQI set, there are at least two CQI indexes, satisfying at least one of the following: the index of each CQI is negatively correlated with the coding rate associated with each CQI; the index of each CQI is negatively correlated with the MCS index associated with each CQI; the index of each CQI is negatively correlated with the TBS index associated with each CQI.

[0118] In this embodiment, in the first CQI set, there are at least two CQI indexes. Assuming that the CQI indexes are k1 and k2, and k1 is smaller than k2, the MCS index (and / or TBS index) associated with CQI k1 is greater than the MCS index (and / or TBS index) associated with CQI k2, that is, the larger the CQI index, the smaller the associated MCS index (and / or TBS index).

[0119] In this embodiment, in the first CQI set, there are at least two CQI indexes. Assuming that the CQI indexes are k1 and k2, k1 is smaller than k2, the code rate associated with CQI k1 is greater than the code rate associated with CQI k2, that is, the larger the CQI index, the smaller the associated code rate.

[0120] As shown in Table 7, CQI 7 is associated with MCS 3, TBS 3, and CQI 8 is associated with MCS2, TBS2.

[0121] In one embodiment, it further includes:

[0122] Step 130: When receiving a channel quality reporting instruction, report the number of repetitions of the Physical Downlink Control Channel (PDCCH).

[0123] In this embodiment, upon receiving the channel quality reporting instruction, the terminal reports the CQI and the number of PDCCH repetitions to the service node. The channel quality reporting instruction instructs the terminal to perform CQI measurement and PDCCH repetition number measurement and report them to the service node.

[0124] In one embodiment, step 120 includes:

[0125] When a channel quality reporting instruction is received, a CQI is reported based on the first CQI set, and the number of PDCCH repetitions is reported.

[0126] In one embodiment, step 120 includes:

[0127] When a channel quality reporting instruction is received and the number of PDCCH repetitions is less than or equal to the threshold value, the CQI is reported based on the first CQI set, and the number of PDCCH repetitions is reported; or, when a channel quality reporting instruction is received and the number of PDCCH repetitions is greater than the threshold value, the PDCCH repetitions are reported, but the CQI is not reported.

[0128] The channel quality reporting instruction instructs the terminal to perform CQI measurement and PDCCH repetition number measurement.

[0129] In this embodiment, the PDCCH repetition number is the PDCCH repetition number indicated in the downlink control information, or the PDCCH repetition number is the PDCCH repetition number obtained by measurement.

[0130] In this embodiment, when a channel quality reporting instruction is received and the number of PDCCH repetitions is less than or equal to the threshold, the terminal reports CQI to the service node based on the first CQI set; otherwise, CQI is not reported to the service node based on the first CQI set.

[0131] In one embodiment, step 120 includes: using a semi-persistent scheduling physical uplink shared channel (SPS PUSCH) to report the CQI based on the first CQI set.

[0132] In an embodiment of the present application, a channel quality receiving method is provided, in which a service node receives a CQI based on an association between the CQI and a channel quality parameter, and flexibly and accurately obtains the channel quality, thereby improving scheduling efficiency and communication performance.

[0133] Figure 2 A flow chart of a channel quality receiving method provided by an embodiment, such as Figure 2 As shown, the method provided in this embodiment includes step 210 and step 220.

[0134] In step 210, a first CQI set is determined, wherein the first CQI set includes an association relationship between CQI and a channel quality parameter, wherein the channel quality parameter includes at least one of the following: modulation mode, code rate, spectrum efficiency, MCS index, TBS index, and number of repetitions.

[0135] In step 220, a CQI is received based on the first CQI set.

[0136] In one embodiment, in the first CQI set, there is at least one CQI index, and a code rate associated with the CQI index is equal to an average value of code rates corresponding to two adjacent CQI indexes in a predefined second CQI set.

[0137] In one embodiment, in the first CQI set, there is at least one CQI index k, and the code rate associated with the CQI index k is equal to the average value of the code rates corresponding to CQI index k-1 and CQI index k+1 in the first CQI set, where k is greater than 0 and less than 31.

[0138] In one embodiment, in the first CQI set, there is at least one CQI index h, and the code rate associated with the CQI index h is equal to the average value of the code rates corresponding to the CQI index h-1 and the CQI index h+2 in the first CQI set, where h is greater than 0 and less than 29; or,

[0139] In the first CQI set, there is at least one CQI index h, and the code rate associated with the CQI index h is equal to the average value of the code rates corresponding to the CQI index h-2 and the CQI index h+1 in the first CQI set, where h is greater than 1 and less than 30.

[0140] In one embodiment, a difference in coding rates corresponding to any two adjacent CQIs associated with the second modulation mode in the first CQI set is smaller than a difference in coding rates corresponding to any two adjacent CQIs associated with the second modulation mode in the second CQI set.

[0141] In one embodiment, in the first CQI set, the difference between TBS indexes associated with every two adjacent CQI indexes associated with the first modulation mode is 2.

[0142] In one embodiment, in the first CQI set, each CQI is associated with an MCS index, and each MCS index is associated with a TBS index.

[0143] In one embodiment, in the first CQI set, there are N CQI indexes associated with the second modulation mode, and among the N CQI indexes associated with the second modulation mode, the difference between TBS indexes associated with every two adjacent CQI indexes is 1, where N is greater than or equal to 2.

[0144] In one embodiment, the N CQIs associated with the second modulation mode are the N CQIs with the largest indexes in the first CQI set.

[0145] In one embodiment, in the first CQI set, the TBS index associated with the CQI with the largest index is 21 or 22.

[0146] In one embodiment, in the first CQI set, P CQI indexes are sequentially associated with TBS indexes 0 to P-1, where the value of P is 22 or 23.

[0147] In one embodiment, the first CQI set includes M CQI indexes, where M is greater than or equal to 8;

[0148] Among the M CQI indexes, M-1 CQI indexes are respectively associated with M-1 MCS indexes from MCS index 0 to MCS index M-1.

[0149] In one embodiment, the first CQI set includes M CQI indexes, where M is greater than or equal to 8;

[0150] Among the M CQI indexes, M-1 CQI indexes are respectively associated with MCS index 0 to MCS index M-2.

[0151] In one embodiment, for an in-band deployment mode, the reported CQI is less than or equal to a CQI index associated with a TBS index L, where L is equal to 16 or 17.

[0152] In one embodiment, in the first CQI set, there is at least one CQI subset, each CQI associated in the CQI subset has the same MCS index or TBS index or code rate, and each CQI associated in the CQI subset has a different number of repetitions.

[0153] In one embodiment, in the first CQI set, there are at least two CQI indexes that satisfy at least one of the following:

[0154] The index of each CQI is negatively correlated with the code rate associated with each CQI;

[0155] The index of each CQI is negatively correlated with the MCS index associated with each CQI;

[0156] The index of each CQI is negatively correlated with the TBS index associated with each CQI.

[0157] In one embodiment, step 220 includes: receiving a CQI based on a first CQI set, and receiving a PDCCH repetition number.

[0158] In one embodiment, step 220 includes:

[0159] When the number of PDCCH repetitions is less than or equal to the threshold value, receiving the CQI based on the first CQI set and receiving the number of PDCCH repetitions; or,

[0160] When the number of PDCCH repetitions is greater than the threshold, the number of PDCCH repetitions is received.

[0161] In one embodiment, step 220 includes: using a physical uplink shared channel of semi-persistent scheduling to receive a CQI based on a first CQI set.

[0162] The embodiment of the present application also provides a channel quality reporting device. Figure 3 FIG. 1 is a schematic diagram of a channel quality reporting device provided by an embodiment. Figure 3 As shown, the channel quality reporting device includes: a first determination module 310 and a reporting module 320.

[0163] A first determination module 310 is configured to determine a first CQI set, where the first CQI set includes an association relationship between a CQI and a channel quality parameter, where the channel quality parameter includes at least one of the following: a modulation mode, a code rate, a spectrum efficiency, an MCS index, a TBS index, and a number of repetitions;

[0164] The reporting module 320 is configured to report the CQI based on the first CQI set.

[0165] The channel quality reporting device of this embodiment reports CQI based on the association between CQI and channel quality parameters, thereby improving the flexibility of CQI reporting. The service node can accurately obtain the channel quality, thereby improving scheduling efficiency and communication performance.

[0166] In one embodiment, in the first CQI set, there is at least one CQI index, and a code rate associated with the CQI index is equal to an average value of code rates corresponding to two adjacent CQI indexes in a predefined second CQI set.

[0167] In one embodiment, in the first CQI set, there is at least one CQI index k, and the code rate associated with the CQI index k is equal to the average value of the code rates corresponding to CQI index k-1 and CQI index k+1 in the first CQI set, where k is greater than 0 and less than 31.

[0168] In one embodiment, in the first CQI set, there is at least one CQI index h, and the code rate associated with the CQI index h is equal to the average value of the code rates corresponding to the CQI index h-1 and the CQI index h+2 in the first CQI set, where h is greater than 0 and less than 29; or,

[0169] In the first CQI set, there is at least one CQI index h, and the code rate associated with the CQI index h is equal to the average value of the code rates corresponding to the CQI index h-2 and the CQI index h+1 in the first CQI set, where h is greater than 1 and less than 30.

[0170] In one embodiment, in the first CQI set, the difference between TBS indexes associated with every two adjacent CQI indexes associated with the first modulation mode is 2.

[0171] In one embodiment, in the first CQI set, each CQI is associated with an MCS index, and each MCS index is associated with a TBS index.

[0172] In one embodiment, in the first CQI set, there are N CQI indexes associated with the second modulation mode, and among the N CQI indexes associated with the second modulation mode, the difference between TBS indexes associated with every two adjacent CQI indexes is 1, where N is greater than or equal to 2.

[0173] In one embodiment, the N CQIs associated with the second modulation mode are the N CQIs with the largest indexes in the first CQI set.

[0174] In one embodiment, in the first CQI set, the TBS index associated with the CQI with the largest index is 21 or 22.

[0175] In one embodiment, in the first CQI set, P CQI indexes are sequentially associated with TBS indexes 0 to P-1, where the value of P is 22 or 23.

[0176] In one embodiment, the first CQI set includes M CQI indexes, where M is greater than or equal to 8;

[0177] Among the M CQI indexes, M-1 CQI indexes are respectively associated with M-1 MCS indexes from MCS index 0 to MCS index M-1.

[0178] In one embodiment, the first CQI set includes M CQI indexes, where M is greater than or equal to 8;

[0179] Among the M CQI indexes, M-1 CQI indexes are respectively associated with MCS index 0 to MCS index M-2.

[0180] In one embodiment, for an in-band deployment mode, the reported CQI is less than or equal to a CQI index associated with a TBS index L, where L is equal to 16 or 17.

[0181] In one embodiment, in the first CQI set, there is at least one CQI subset, each CQI associated in the CQI subset has the same MCS index or TBS index or code rate, and each CQI associated in the CQI subset has a different number of repetitions.

[0182] In one embodiment, in the first CQI set, there are at least two CQI indexes that satisfy at least one of the following:

[0183] The index of each CQI is negatively correlated with the code rate associated with each CQI;

[0184] The index of each CQI is negatively correlated with the MCS index associated with each CQI;

[0185] The index of each CQI is negatively correlated with the TBS index associated with each CQI.

[0186] In one embodiment, the reporting module 320 is further configured to:

[0187] When a channel quality reporting instruction is received, a CQI is reported based on the first CQI set, and the number of PDCCH repetitions is reported.

[0188] In one embodiment, the reporting module 320 is configured to:

[0189] When a channel quality reporting instruction is received and the number of PDCCH repetitions is less than or equal to a threshold value, a CQI is reported based on a first CQI set, and the number of PDCCH repetitions is reported.

[0190] In one embodiment, the reporting module 320 is configured to:

[0191] When a channel quality reporting instruction is received and the number of PDCCH repetitions is greater than a threshold, the number of PDCCH repetitions is reported but the CQI is not reported.

[0192] In one embodiment, the reporting module 320 is configured to: report the CQI based on the first CQI set using a physical uplink shared channel with semi-persistent scheduling.

[0193] The channel quality reporting device proposed in this embodiment and the channel quality reporting method proposed in the above embodiment belong to the same inventive concept. The technical details not described in detail in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as executing the channel quality reporting method.

[0194] The embodiment of the present application also provides a channel quality receiving device. Figure 4 FIG. 1 is a schematic diagram of a channel quality receiving device provided by an embodiment. Figure 4 As shown, the channel quality receiving device includes: a second determination module 410 and a receiving module 420.

[0195] The second determination module 410 is configured to determine a first CQI set, where the first CQI set includes an association relationship between a CQI and a channel quality parameter, where the channel quality parameter includes at least one of the following: a modulation mode, a code rate, a spectrum efficiency, an MCS index, a TBS index, and a number of repetitions;

[0196] The receiving module 420 is configured to receive a CQI based on a first CQI set.

[0197] The channel quality receiving device of this embodiment receives the CQI based on the association between the CQI and the channel quality parameter, thereby flexibly and accurately obtaining the channel quality, thereby improving scheduling efficiency and communication performance.

[0198] In one embodiment, in the first CQI set, there is at least one CQI index, and a code rate associated with the CQI index is equal to an average value of code rates corresponding to two adjacent CQI indexes in a predefined second CQI set.

[0199] In one embodiment, in the first CQI set, there is at least one CQI index k, and the code rate associated with the CQI index k is equal to the average value of the code rates corresponding to CQI index k-1 and CQI index k+1 in the first CQI set, where k is greater than 0 and less than 31.

[0200] In one embodiment, in the first CQI set, there is at least one CQI index h, and the code rate associated with the CQI index h is equal to the average value of the code rates corresponding to the CQI index h-1 and the CQI index h+2 in the first CQI set, where h is greater than 0 and less than 29; or,

[0201] In the first CQI set, there is at least one CQI index h, and the code rate associated with the CQI index h is equal to the average value of the code rates corresponding to the CQI index h-2 and the CQI index h+1 in the first CQI set, where h is greater than 1 and less than 30.

[0202] In one embodiment, in the first CQI set, the difference between TBS indexes associated with every two adjacent CQI indexes associated with the first modulation mode is 2.

[0203] In one embodiment, in the first CQI set, each CQI is associated with an MCS index, and each MCS index is associated with a TBS index.

[0204] In one embodiment, in the first CQI set, there are N CQI indexes associated with the second modulation mode, and among the N CQI indexes associated with the second modulation mode, the difference between TBS indexes associated with every two adjacent CQI indexes is 1, where N is greater than or equal to 2.

[0205] In one embodiment, the N CQIs associated with the second modulation mode are the N CQIs with the largest indexes in the first CQI set.

[0206] In one embodiment, in the first CQI set, the TBS index associated with the CQI with the largest index is 21 or 22.

[0207] In one embodiment, in the first CQI set, P CQI indexes are sequentially associated with TBS indexes 0 to P-1, where the value of P is 22 or 23.

[0208] In one embodiment, the first CQI set includes M CQI indexes, where M is greater than or equal to 8;

[0209] Among the M CQI indexes, M-1 CQI indexes are respectively associated with M-1 MCS indexes from MCS index 0 to MCS index M-1.

[0210] In one embodiment, the first CQI set includes M CQI indexes, where M is greater than or equal to 8;

[0211] Among the M CQI indexes, M-1 CQI indexes are respectively associated with MCS index 0 to MCS index M-2.

[0212] In one embodiment, for an in-band deployment mode, the reported CQI is less than or equal to a CQI index associated with a TBS index L, where L is equal to 16 or 17.

[0213] In one embodiment, in the first CQI set, there is at least one CQI subset, each CQI associated in the CQI subset has the same MCS index or TBS index or code rate, and each CQI associated in the CQI subset has a different number of repetitions.

[0214] In one embodiment, in the first CQI set, there are at least two CQI indexes that satisfy at least one of the following:

[0215] The index of each CQI is negatively correlated with the code rate associated with each CQI;

[0216] The index of each CQI is negatively correlated with the MCS index associated with each CQI;

[0217] The index of each CQI is negatively correlated with the TBS index associated with each CQI.

[0218] In one embodiment, the receiving module 420 is further configured to:

[0219] A CQI is received based on a first CQI set, and a PDCCH repetition number is received.

[0220] In one embodiment, the receiving module 420 is configured to:

[0221] When the number of PDCCH repetitions is less than or equal to the threshold value, a CQI is received based on the first CQI set, and the number of PDCCH repetitions is received.

[0222] In one embodiment, the receiving module 420 is configured to:

[0223] When the number of PDCCH repetitions is greater than the threshold, the number of PDCCH repetitions is received.

[0224] In one embodiment, the receiving module 420 is configured to:

[0225] A physical uplink shared channel using semi-persistent scheduling is used to receive a CQI based on a first CQI set.

[0226] The channel quality receiving device proposed in this embodiment and the channel quality receiving method proposed in the above embodiment belong to the same inventive concept. The technical details not described in detail in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as executing the channel quality receiving method.

[0227] The embodiment of the present application also provides a terminal. The channel quality reporting method can be performed by a channel quality reporting device, which can be implemented by software and / or hardware and integrated in the terminal. The terminal includes but is not limited to: a user terminal (User Equipment, UE) such as a desktop computer, a laptop computer, a smart phone, and a tablet computer.

[0228] Figure 5 FIG. 1 is a schematic diagram of a hardware structure of a terminal provided by an embodiment. Figure 5 As shown, a terminal provided in this embodiment includes: a processor 510 and a storage device 520. The processor in the terminal may be one or more, Figure 5 Taking a processor 510 as an example, the processor 510 and the storage device 520 in the terminal may be connected via a bus or other means. Figure 5 The example of connecting through bus is taken in the following.

[0229] The one or more programs are executed by the one or more processors 510, so that the one or more processors implement the channel quality reporting method described in any of the above embodiments.

[0230] The storage device 520 in the terminal is a computer-readable storage medium, which can be used to store one or more programs, and the program can be a software program, a computer executable program, and a module, such as the program instructions / modules corresponding to the channel quality reporting method in the embodiment of the present application (for example, the attached Figure 3 The modules in the channel quality reporting device shown include: a first determination module 310 and a reporting module 320). The processor 510 executes various functional applications and data processing of the terminal by running the software programs, instructions and modules stored in the storage device 520, that is, the channel quality reporting method in the above method embodiment is implemented.

[0231] The storage device 520 mainly includes a program storage area and a data storage area, wherein the program storage area can store an operating system and an application required for at least one function; the data storage area can store data created according to the use of the terminal (such as the first CQI set, channel quality parameters, etc. in the above embodiment). In addition, the storage device 520 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some instances, the storage device 520 may further include a memory remotely arranged relative to the processor 510, and these remote memories may be connected to the terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0232] Moreover, when one or more programs included in the above-mentioned terminal are executed by the one or more processors 510, the following operations are implemented: determining a first CQI set, wherein the first CQI set includes an association relationship between CQI and a channel quality parameter, wherein the channel quality parameter includes at least one of the following: modulation mode, code rate, spectrum efficiency, MCS index, TBS index, and number of repetitions; and reporting CQI based on the first CQI set.

[0233] The terminal proposed in this embodiment and the channel quality reporting method proposed in the above embodiment belong to the same inventive concept. The technical details not described in detail in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as executing the channel quality reporting method.

[0234] The embodiment of the present application also provides a service node. The channel quality receiving method can be performed by a channel quality receiving device, which can be implemented by software and / or hardware and integrated in the service node. The service node includes but is not limited to a base station, a centralized control unit, a transmission reception point (TRP), etc.

[0235] Figure 6 FIG. 1 is a schematic diagram of a hardware structure of a service node provided by an embodiment. Figure 6 As shown, a service node provided in this embodiment includes: a processor 610 and a storage device 620. The processor in the service node may be one or more, Figure 6 Taking a processor 610 as an example, the processor 610 and the storage device 620 in the service node may be connected via a bus or other means. Figure 6 The example of connecting through bus is taken in the following.

[0236] The one or more programs are executed by the one or more processors 610, so that the one or more processors implement the channel quality receiving method described in any of the above embodiments.

[0237] The storage device 620 in the service node is a computer-readable storage medium, which can be used to store one or more programs, and the program can be a software program, a computer executable program, and a module, such as the program instructions / modules corresponding to the channel quality receiving method in the embodiment of the present application (for example, the attached Figure 4 The modules in the channel quality receiving device shown include: a second determination module 410 and a receiving module 420). The processor 610 executes various functional applications and data processing of the service node by running the software programs, instructions and modules stored in the storage device 620, that is, the channel quality receiving method in the above method embodiment is implemented.

[0238] The storage device 620 mainly includes a program storage area and a data storage area, wherein the program storage area can store an operating system and at least one application required for a function; the data storage area can store data created according to the use of the service node (such as the first CQI set, channel quality parameters, etc. in the above embodiment). In addition, the storage device 620 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some instances, the storage device 620 may further include a memory remotely arranged relative to the processor 610, and these remote memories may be connected to the service node via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0239] Moreover, when one or more programs included in the above-mentioned service node are executed by the one or more processors 610, the following operations are implemented: determining a first CQI set, wherein the first CQI set includes an association relationship between CQI and a channel quality parameter, wherein the channel quality parameter includes at least one of the following: modulation mode, code rate, spectrum efficiency, MCS index, TBS index, and number of repetitions; receiving CQI based on the first CQI set.

[0240] The service node proposed in this embodiment and the channel quality receiving method proposed in the above embodiment belong to the same inventive concept. The technical details not described in detail in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as executing the channel quality receiving method.

[0241] An embodiment of the present application also provides a storage medium containing computer executable instructions, which are used to execute a channel quality reporting method or a channel quality receiving method when executed by a computer processor.

[0242] The channel quality reporting method includes: determining a first CQI set, the first CQI set including an association relationship between CQI and channel quality parameters, the channel quality parameters including at least one of the following: modulation mode, code rate, spectrum efficiency, MCS index, TBS index and number of repetitions; reporting CQI based on the first CQI set.

[0243] The channel quality receiving method includes: determining a first CQI set, the first CQI set includes an association relationship between CQI and a channel quality parameter, the channel quality parameter includes at least one of the following: modulation mode, code rate, spectrum efficiency, MCS index, TBS index and number of repetitions; receiving CQI based on the first CQI set.

[0244] Through the above description of the implementation method, the technical personnel in the relevant field can understand that the present application can be implemented by means of software and general hardware, or by hardware. Based on such an understanding, the technical solution of the present application can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk or optical disk, etc., including multiple instructions for a computer device (which can be a personal computer, server, or network device, etc.) to execute the method described in any embodiment of the present application.

[0245] The above description is merely an exemplary embodiment of the present application and is not intended to limit the protection scope of the present application.

[0246] The block diagram of any logic flow in the accompanying drawings of the present application can represent program steps, or can represent interconnected logic circuits, modules and functions, or can represent a combination of program steps and logic circuits, modules and functions. The computer program can be stored on a memory. The memory can have any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as but not limited to read-only memory (ROM), random access memory (RAM), optical memory device and system (digital versatile disc DVD or CD disc), etc. Computer-readable media may include non-transient storage media. The data processor can be any type suitable for the local technical environment, such as but not limited to a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a programmable logic device (FGPA) and a processor based on a multi-core processor architecture.

[0247] A detailed description of exemplary embodiments of the present application has been provided above by way of exemplary and non-limiting examples. However, various modifications and adjustments to the above embodiments will be apparent to those skilled in the art when considered in conjunction with the accompanying drawings and claims, but will not depart from the scope of the present application. Therefore, the proper scope of the present application will be determined according to the claims.

Claims

1. A channel quality reporting method, characterized in that: include: Determine a first channel quality indicator CQI set, where the first CQI set includes an association relationship between a CQI index and a channel quality parameter, where the channel quality parameter includes at least one of the following: a modulation mode, a code rate, a spectrum efficiency, a modulation and coding strategy MCS index, a transport block size TBS index, and a number of repetitions; in the first CQI set, there is at least one CQI subset, and each CQI in the CQI subset is associated with the same MCS index or TBS index or code rate, and each CQI in the CQI subset is associated with a different number of repetitions; Reporting a CQI based on the first CQI set.

2. The method according to claim 1, characterized in that In the first CQI set, there is at least one CQI index, and a code rate associated with the CQI index is equal to an average value of code rates corresponding to two adjacent CQI indexes in a predefined second CQI set.

3. The method according to claim 1, characterized in that In the first CQI set, a difference in code rates corresponding to any two adjacent CQIs associated with the second modulation mode is smaller than a difference in code rates corresponding to any two adjacent CQIs associated with the second modulation mode in a predefined second CQI set.

4. The method according to claim 1, characterized in that: In the first CQI set, there is at least one CQI index k, and the code rate associated with the CQI index k is equal to the average value of the code rates corresponding to CQI index k-1 and CQI index k+1 in the first CQI set, where k is greater than 0 and less than 31.

5. The method according to claim 1, characterized in that: In the first CQI set, there is at least one CQI index h, and the code rate associated with the CQI index h is equal to the average value of the code rates corresponding to the CQI index h-1 and the CQI index h+2 in the first CQI set, where h is greater than 0 and less than 29; or, In the first CQI set, there is at least one CQI index h, and the code rate associated with the CQI index h is equal to the average value of the code rates corresponding to the CQI index h-2 and the CQI index h+1 in the first CQI set, where h is greater than 1 and less than 30.

6. The method according to claim 1, characterized in that In the first CQI set, a difference between TBS indexes corresponding to every two adjacent CQI indexes associated with the first modulation mode is 2.

7. The method according to claim 6, characterized in that In the first CQI set, each CQI is associated with an MCS index, and each MCS index is associated with a TBS index.

8. The method according to claim 1, characterized in that In the first CQI set, there are N CQI indexes associated with the second modulation mode, and among the N CQI indexes associated with the second modulation mode, the difference between TBS indexes associated with every two adjacent CQI indexes is 1, where N is greater than or equal to 2.

9. The method according to claim 8, characterized in that The N CQIs associated with the second modulation mode are the N CQIs with the largest indexes in the first CQI set.

10. The method according to claim 1, characterized in that In the first CQI set, the TBS index associated with the CQI with the largest index is 21 or 22.

11. The method according to claim 1, characterized in that In the first CQI set, P CQI indexes are sequentially associated with TBS indexes 0 to P-1, where the value of P is 22 or 23.

12. The method according to claim 1, characterized in that The first CQI set includes M CQI indexes, where M is greater than or equal to 8; Among the M CQI indexes, M-1 CQI indexes are respectively associated with M-1 MCS indexes from MCS index 0 to MCS index M-1.

13. The method according to claim 1, characterized in that The first CQI set includes M CQI indexes, where M is greater than or equal to 8; Among the M CQIs, M-1 CQIs are respectively associated with MCS index 0 to MCS index M-2.

14. The method according to claim 1, characterized in that For the in-band deployment mode, the reported CQI is less than or equal to the CQI index associated with the TBS index L, where L is equal to 16 or 17.

15. The method according to claim 1, characterized in that In the first CQI set, there are at least two CQI indexes, satisfying at least one of the following: The at least two CQI indices are negatively correlated with the coding rates associated with the at least two CQI indices; The at least two CQI indexes are negatively correlated with the MCS index associated with the at least two CQI indexes; The at least two CQI indexes are negatively correlated with TBS indexes associated with the at least two CQI indexes.

16. The method according to claim 1, characterized in that The reporting the CQI based on the first CQI set includes: When a channel quality reporting instruction is received, the CQI is reported based on the first CQI set, and the number of repetitions of the physical downlink control channel PDCCH is reported.

17. The method according to claim 1, characterized in that The reporting of the CQI based on the first CQI set includes: When a channel quality reporting instruction is received and the number of PDCCH repetitions is less than or equal to a threshold value, the CQI is reported based on the first CQI set, and the number of PDCCH repetitions is reported.

18. The method according to claim 1, characterized in that The reporting of the CQI based on the first CQI set includes: using a physical uplink shared channel of semi-persistent scheduling, and reporting the CQI based on the first CQI set.

19. A channel quality receiving method, characterized in that: include: Determine a first CQI set, where the first CQI set includes an association relationship between a CQI index and a channel quality parameter, where the channel quality parameter includes at least one of the following: a modulation mode, a code rate, a spectrum efficiency, an MCS index, a TBS index, and a number of repetitions; in the first CQI set, there is at least one CQI subset, where each CQI in the CQI subset is associated with the same MCS index or TBS index or code rate, and each CQI in the CQI subset is associated with a different number of repetitions; A CQI is received based on the first CQI set.

20. A channel quality reporting device, characterized in that: include: A first determination module is configured to determine a first CQI set, wherein the first CQI set includes an association relationship between a CQI index and a channel quality parameter, wherein the channel quality parameter includes at least one of the following: a modulation mode, a code rate, a spectrum efficiency, an MCS index, a TBS index, and a number of repetitions; in the first CQI set, there is at least one CQI subset, and each CQI in the CQI subset is associated with the same MCS index or TBS index or code rate, and each CQI in the CQI subset is associated with a different number of repetitions; The reporting module is configured to report the CQI based on the first CQI set.

21. A channel quality receiving device, characterized in that: include: The second determination module is configured to determine a first CQI set, wherein the first CQI set includes an association relationship between a CQI index and a channel quality parameter, wherein the channel quality parameter includes at least one of the following: a modulation mode, a code rate, a spectrum efficiency, an MCS index, a TBS index, and a number of repetitions; in the first CQI set, there is at least one CQI subset, and each CQI in the CQI subset is associated with the same MCS index or TBS index or code rate, and each CQI in the CQI subset is associated with a different number of repetitions; The receiving module is configured to receive a CQI based on the first CQI set.

22. A terminal, characterized in that: include: one or more processors; A storage device for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the channel quality reporting method according to any one of claims 1 to 18.

23. A service node, characterized in that: include: one or more processors; A storage device for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the channel quality receiving method as claimed in claim 19.

24. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the channel quality reporting method according to any one of claims 1 to 18 or the channel quality receiving method according to claim 19 is implemented.

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