CN112511268A

CN112511268A - Method, device and medium for policy configuration, power configuration and quality reporting

Info

Publication number: CN112511268A
Application number: CN202011112416.4A
Authority: CN
Inventors: 边峦剑; 戴博; 胡有军; 刘锟; 杨维维
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-03-16
Also published as: WO2022078343A1

Abstract

The embodiment of the application provides a method, equipment and a medium for strategy configuration, power configuration and quality reporting, wherein the method for configuring a modulation and coding strategy comprises the following steps: determining a first modulation and coding strategy set; and configuring a modulation and coding strategy for target data based on the first modulation and coding strategy set. According to the embodiment of the application, the modulation and coding strategy is reasonably configured for the target data through the first modulation and coding strategy set, the support for a high-order modulation mode is realized, the communication performance of the narrow-band Internet of things can be improved, and the communication network quality is enhanced.

Description

Method, device and medium for policy configuration, power configuration and quality reporting

Technical Field

The present invention relates to the field of wireless communications technologies, and in particular, to a method, a device, and a medium for policy configuration, power configuration, and quality reporting.

Background

With the development of wireless communication technology, narrowband Band Internet of Things (NB-IoT) has been rapidly developed, in Release-16 version NB-IoT, uplink data transmission mostly supports Quadrature Phase Shift Keying (QPSK) Modulation, while in Release-17 version NB-IoT, the maximum Modulation mode supported by uplink transmission is promoted from the existing QPSK to 16 Quadrature Amplitude Modulation (QAM), but Modulation and Coding Schemes (MCS) have not been designed yet.

Disclosure of Invention

The embodiment of the application mainly aims to provide a method, a device and a medium for strategy configuration, power configuration and quality reporting, and aims to support a high-order modulation mode, improve the communication performance of a narrowband internet of things and enhance the communication network quality.

In order to achieve the above object, an embodiment of the present application provides a method for configuring a modulation and coding strategy, where the method includes:

determining a first modulation and coding strategy set; and configuring a modulation and coding strategy for target data based on the first modulation and coding strategy set.

In order to achieve the above object, an embodiment of the present application further provides a power configuration method, where the method includes: determining a power offset parameter of a physical uplink shared channel according to a modulation mode in a modulation coding strategy configured for the physical uplink shared channel; and configuring the sending power for the physical uplink shared channel according to the power offset parameter.

In order to achieve the above object, an embodiment of the present application further provides a method for reporting channel quality, where the method includes:

determining a channel quality indication set, wherein the channel quality indication set comprises an association relationship between channel quality indications and channel quality parameters, and the channel quality parameters comprise at least one of the following: the modulation mode, the target code rate, the spectrum efficiency, the modulation coding strategy index, the transmission block set index and the repetition times, wherein the maximum modulation mode included in the channel quality indication set is 16 orthogonal amplitude modulation; and reporting the channel quality based on the channel quality indication set.

In order to achieve the above object, an embodiment of the present application further provides an electronic device, including:

one or more processors;

a memory for storing one or more programs;

when executed by the one or more processors, cause the one or more processors to implement a method as in any of the embodiments of the present application.

To achieve the above object, the present application further provides a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the method as described in any of the embodiments of the present application.

According to the embodiment of the application, the first modulation and coding strategy set is determined, and the modulation and coding strategy is configured for the target data through the first modulation and coding strategy set, so that the support of a high-order modulation mode is realized, the communication performance of the narrow-band Internet of things can be improved, and the communication network quality is enhanced.

Drawings

Fig. 1 is a flowchart of a configuration method of a modulation and coding strategy according to an embodiment of the present application;

fig. 2 is a flowchart of a power configuration method provided in an embodiment of the present application;

fig. 3 is a flowchart of a method for reporting channel quality according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a configuration apparatus for a modulation and coding strategy according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a power configuration apparatus provided in an embodiment of the present application;

fig. 6 is a schematic structural diagram of an apparatus for reporting channel quality according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the following description, suffixes such as "module", "part", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no peculiar meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.

Fig. 1 is a flowchart of a method for configuring a modulation and coding strategy according to an embodiment of the present application, where the present embodiment is applicable to a case where a high-order modulation scheme is supported in wireless communication, and the method may be performed by a device for configuring a modulation and coding strategy according to the embodiment of the present application, where the device may be implemented in a software and/or hardware manner, and may be generally integrated in a base station, and the method according to the embodiment of the present application specifically includes the following steps:

step 110, determining a first modulation and coding strategy set.

In an optional embodiment, the first modulation and coding strategy set may be a table including a plurality of MCSs.

In the embodiment of the present application, the base station may determine, according to network attribute information such as a network condition, a number of terminals, a transport block size, and a modulation mode, that a modulation coding strategy forms a first modulation coding strategy set, and it can be understood that different network attribute values in the first modulation coding strategy may correspond to different modulation coding strategies.

And step 120, configuring a modulation and coding strategy for target data based on the first modulation and coding strategy set.

The target data may be service data to be sent or control signaling.

Specifically, a suitable modulation and coding strategy may be selected and configured to the transmission target data according to the determined first modulation and coding strategy MCS set.

According to the technical scheme of the embodiment of the application, the first modulation and coding strategy set is determined, and the modulation and coding strategy is configured for the target data through the first modulation and coding strategy set, so that the support of a high-order modulation mode is realized, the communication performance of the narrow-band Internet of things can be improved, and the communication network quality is enhanced.

Further, on the basis of the embodiment of the foregoing application, the determining the first modulation and coding strategy set includes: determining a first modulation and coding scheme set according to the number of resource units, wherein the first modulation and coding scheme set at least comprises at least one of the following: the corresponding relation between the modulation coding strategy index and the modulation mode and the corresponding relation between the modulation coding strategy index and the transmission block size index.

Specifically, a Resource Unit (RU) may be a radio Resource configured by the base station for the terminal UE to transmit data, a first modulation and coding strategy set may be determined according to the number of Resource units, and when the number of Resource units belongs to different number sets, corresponding first modulation and coding strategy MCS sets may be different. A corresponding first modulation and coding strategy set may be searched in a preset modulation and coding strategy set according to the number of resource units, where the first modulation and coding strategy set includes a correspondence between a modulation and coding strategy index and a modulation scheme and a correspondence between the modulation and coding strategy index and a transmission block size index, the modulation and coding strategy index may identify different modulation and coding strategies, and each modulation and coding strategy may include a modulation scheme and a transmission block size.

Further, on the basis of the embodiment of the above application, when the number of configured resource units belongs to a first number set or a second number set, the first modulation and coding strategy set includes a modulation and coding strategy subset, the modulation and coding strategy subset includes a preset number of modulation and coding strategies, a difference between TBS indexes corresponding to every two adjacent modulation and coding strategies in the preset number of modulation and coding strategies is K, K is greater than or equal to 2, where the first number set is different from the second number set, and values of the preset number correspond to the first number set or the second number set.

Where the first and second sets of numbers may be sets of values for the number of resource units RU, the first set of numbers may contain values different from the values contained in the second set of numbers, e.g., the first set of numbers may include 1, 2, 3, 4, and 5, and the second set of numbers may include 6. The modulation and coding strategy subset may be composed of one or more modulation and coding strategies, and the modulation and coding strategy subset may be a part or all of the first modulation and coding strategy set.

In this embodiment, when the number of resource units belongs to the first number set or the second number set, the first MCS set corresponding to the first number set is different from the first MCS set corresponding to the second number set.

In an exemplary embodiment, when the number of resource units RU configured for the UE belongs to the first number set, the MCS set includes one MCS subset, the MCS subset includes 7 MCSs, and a difference between TBS indexes corresponding to every two adjacent MCSs in the 7 MCSs is 2. In this embodiment, when the number of RU resource units configured for the UE belongs to the first number set, the number of TBSs is greater than the number of MCSs, so the TBSs cannot correspond to the MCSs one by one, and a certain number of TBSs need to be selected to correspond to the MCSs. Considering that 16QAM is mainly used to increase data rate, it is suitable for scenarios with good channel conditions, low repetition or no repetition times. Therefore, high SNR intervals and large TBS deployment should be the main targets for 16QAM MCS table design. Then, in the higher MCS interval, consecutive large TBSs are set, i.e. the difference between the TBS indexes corresponding to each two adjacent MCSs is 1, for example, TBSs 13,14,15, …,21, so that the data transmission efficiency under high SNR can be ensured; in the low MCS interval, a small TBS is set at intervals, i.e. the difference between the TBS indexes corresponding to every two adjacent MCSs is 2, e.g. TBS 0,2,4,6, …, 12. A smaller TBS can guarantee the reliability of the transmission when the channel deteriorates.

In this embodiment, the modulation mode and the modulation order are equivalent, the modulation order of 16QAM is 4, and the modulation order of QPSK is 2.

Further, in this embodiment, the first number set at least includes 1, 2, 3, 4 and 5, and then in this embodiment, when the number of resource units RU configured for the UE is greater than or equal to 1 and less than or equal to 5, the TBS is greater than or equal to 0 and less than or equal to 21, and the MCS is greater than or equal to 0 and less than or equal to 15, then the MCS and the TBS have the corresponding relationship: MCS 0 to 6 correspond to TBS 0,2,4,6,8, 10, 12, and MCS 7 to 15 correspond to TBS 13 to 21. Table one gives a specific example.

Watch 1

In an exemplary embodiment, when the number of resource units RU configured for the UE belongs to the second number set, the MCS set includes one MCS subset, the MCS subset includes 5 MCSs, and a difference between TBS indexes corresponding to every two adjacent MCSs in the 5 MCSs is 2. Further, the second set of numbers comprises at least 6.

Accordingly, in this embodiment, when the number of resource units RU configured for the UE is 6, the range of the TBS is greater than or equal to 0 and less than or equal to 21, and the range of the MCS is greater than or equal to 0 and less than or equal to 15, then the corresponding relationship between the MCS and the TBS is: MCS 0 to 4 correspond to TBS 0,2,4,6,8, furthermore MCS 5 to 15 correspond to TBS 9 to 19. Table two gives a specific example.

Watch two

MCS index I_MCS	Modulation order Qm	TBS number I_TBS
			0	2	0
1	2	2
			2	2	4
3	2	6
			4	2	8
5	2	9
			6	2	10
7	4	11
			8	4	12
9	4	13
			10	4	14
11	4	15
			12	4	16
13	4	17
			14	4	18
15	4	19

Further, on the basis of the embodiment of the foregoing application, the determining a first modulation and coding strategy set according to the number of resource units includes:

when the configured number of the resource units belongs to a third number set, the modulation and coding strategy indexes in the first modulation and coding strategy set sequentially correspond to the transport block size indexes from 0 to 15 respectively.

In this embodiment of the present application, the first modulation and coding strategy corresponding to the third number set includes 16 modulation and coding strategies, where a modulation and coding strategy index and a transport block size index have a corresponding relationship, and the modulation and coding strategy indexes respectively correspond to the transport block size indexes from 0 to 15 in an order from 0 to 15, it can be understood that the modulation and coding strategy index 0 corresponds to the transport block size index 0, the modulation and coding strategy index 1 corresponds to the transport block size index 1, and the modulation and coding strategy index and the transport block size index in the first modulation and coding strategy corresponding to the third number set may be similar. When the base station determines that the number of resource units configured for the terminal belongs to the third number set, a modulation and coding strategy set having a relationship that modulation and coding strategy indexes respectively sequentially correspond to transport block sizes from 0 to 15 may be selected as the corresponding first modulation and coding strategy set.

In an exemplary embodiment, the third set of numbers may include at least 8. When the number of resource units RU configured for the UE is 8, the TBS has a range greater than or equal to 0 and less than or equal to 15, and the MCS has a range greater than or equal to 0 and less than or equal to 15, then the MCS and TBS have a corresponding relationship: MCS 0 to 15 correspond to TBS 0 to 15 in turn, and table three gives a specific example.

Watch III

MCS index I_MCS	Modulation order Qm	TBS number I_TBS
			0	2	0
1	2	1
			2	2	2
3	2	3
			4	2	4
5	2	5
			6	2	6
7	2	7
			8	2	8
9	2	9
			10	2	10
11	4	11
			12	4	12
13	4	13
			14	4	14
15	4	15

Further, on the basis of the embodiment of the above application, when the number of the configured resource units belongs to a fourth number set, a maximum index value of a transport block size index in the first modulation and coding strategy set is 13, and at least one pair of modulation and coding strategies exists, where transport block sizes corresponding to the pair of modulation and coding strategies are the same and have different modulation modes.

Wherein the maximum index value may be a maximum value of the transport block size index.

In the embodiment of the present application, the maximum value of the index of the transport block size in the first modulation and coding strategy set corresponding to the fourth number set is 13, and there is at least one pair of modulation and coding strategies, which have the same transport block size index but different corresponding modulation modes. Specifically, when it is determined that the number of configured resource units belongs to the fourth number set, the first modulation and coding strategy set under the fourth number set may be determined, where a maximum index value of transport block size indexes included in the modulation and coding strategy set is 13, and there are at least one pair of modulation and coding strategies corresponding to the same transport block size and different modulation modes.

Illustratively, the fourth number set may include at least 10, when the number of resource units RU configured for the UE is 10, the TBS ranges from greater than or equal to 0 and less than or equal to 13, the MCS ranges from greater than or equal to 0 and less than or equal to 15, and the MCS number is greater than the TBS number, so at least one pair of MCSs may be set corresponding to the same TBS N, for example, N ═ 11, and the pair of MCSs have different modulation schemes, which has the advantage that one higher order modulation and lower code rate MCS and one lower order modulation and higher code rate MCS can be obtained for the TBS N, and the two MCSs are suitable for different channel conditions and resource allocation situations, which is beneficial for deployment and improves transmission performance.

In a specific example, assuming that TBS N is TBS 11, the corresponding relationship between MCS and TBS includes: MCS 0 to 11 correspond to TBS 0 to 11, MCS 12 to 14 correspond to TBS 11 to 13, as shown in table four.

Watch four

MCS index I_MCS	Modulation order Qm	TBS number I_TBS
			0	2	0
1	2	1
			2	2	2
3	2	3
			4	2	4
5	2	5
			6	2	6
7	2	7
			8	2	8
9	2	9
			10	2	10
11	2	11
			12	4	11
13	4	12
			14	4	13
15	Retention	Retention

In an exemplary embodiment, the tables from table one to table four may be summarized in a table, and the corresponding first encoding policy set may be determined in the table according to the number of resource units, and the table may be as shown in table five:

watch five

Wherein, I_RUMay be an index of the number of resource units, and the value of each index may correspond to the number of RUs, as shown in table six:

watch six

I_RU	Number of RUs
		0	1
1	2
		2	3
3	4
		4	5
5	6
		6	8
7	10

Further, on the basis of the embodiment of the above application, when the modulation scheme of the configured modulation and coding strategy is 16qam, the number of repetitions of the physical shared channel corresponding to the target data is less than or equal to 2.

In the embodiment of the present application, since 16QAM is higher than QPSK modulation order, the required channel condition is higher, and under a given channel condition, the physical shared channel may need to repeat transmission to ensure that 16QAM modulation is correctly received, and when the number of repetitions of the physical shared channel is increased, the data rate of 16QAM is decreased until it is lower than QPSK data rate. For NB-IoT networks, table seven compares the peak rates of 16QAM and QPSK, and from table seven it can be seen that the peak data rate of 16QAM modulation at repetition number 2 is still greater than the peak rate of QPSK, but the peak data rate of 16QAM at 4 repetitions is less than the peak rate of QPSK. Therefore, when the MCS configured for the UE is 16QAM modulation, the number of repetitions of the physical shared channel may be restricted to less than or equal to 2 in order to improve transmission efficiency.

Watch seven

Further, on the basis of the above application embodiment, when the high-level configuration parameter indicates that data transmission supports high-level modulation, a most significant bit in a subcarrier indication field in the downlink control information is used as one bit of modulation coding strategy indication information, and a modulation order of the high-level modulation is greater than or equal to 4.

Wherein, the higher layer configuration parameter may indicate whether the data transmission supports high-order modulation, for example, whether 16QAM modulation is supported; the subcarrier indication field may be an information field indicating the number and/or location of subcarriers in Downlink Control Information (DCI), and may include one or more bits.

Specifically, when the data transmission can support high-order modulation with a modulation order greater than or equal to 4 through the high-level configuration parameter indication, the most significant bit in the subcarrier indication field in the downlink control information may be used as one bit of the modulation and coding strategy indication information. In the downlink control information, the most significant bit of the subcarrier indication field is used together with the bit of the existing MCS indication information field to indicate MCS information, i.e. to indicate the MCS index configured for data.

In the embodiment of the present application, the modulation and coding strategy indication information is used to indicate one MCS in the MCS set, and the base station indicates to the UE which MCS to use through the MCS indication information in the downlink control information. In the existing Release-16NB-IoT technology, the MCS indication information field contains 4 bits, and when the high-level configuration parameter indicates that the high-level modulation is configured, the configuration range of the MCS may increase, and thus the MCS indication information may need to increase to 5 bits. Consider that in the Release-16NB-IoT technique, the subcarrier indication field in the downlink control information contains 6 bits, whereas in the case of 15kHz subcarrier spacing, the most significant bits in the subcarrier indication field are reserved, i.e., not utilized. Therefore, the highest bit of the subcarrier indication field in the downlink control information can be used as one bit of the MCS indication information, so that the MCS indication information becomes 5 bits, and the overhead of the downlink control information is not additionally increased.

On the basis of the embodiment of the application, the method further comprises the following steps: and when the high-level configuration parameters indicate that the data transmission supports high-level modulation, the subcarrier indication domain in the downlink control information indicates subcarrier information and a modulation coding strategy set.

Wherein, the subcarrier information comprises the number and/or position sequence number of the subcarriers.

In this embodiment, when the value of the subcarrier indication field is less than or equal to 18, the modulation and coding strategy set indicated by the subcarrier indication field includes MCS indices 0 to K, where K is greater than 1. Further, for MCS 0 to K, which MCS is specifically configured is indicated by an MCS indication field in the downlink control information.

Further, when the value of the subcarrier indication field is greater than or equal to 12 and less than or equal to 18, the modulation and coding strategy set indicated by the subcarrier indication field includes MCS indexes 0 to K, where K is greater than 1.

In this embodiment, when the value in the subcarrier indication field is greater than or equal to 19, the modulation and coding strategy set indicated by the subcarrier indication field includes MCS indexes K +1 to L-1, where K is greater than 1, and L is the MCS number included in the first modulation and coding strategy set, that is, the MCS number associated with the modulation scheme in the first modulation and coding strategy set, for example, if MCS indexes 0 to 21 in the first modulation and coding strategy set are associated with modulation schemes, L is 22.

Further, when the value of the subcarrier indication field is greater than or equal to 19 and less than or equal to 25, the modulation and coding strategy set indicated by the subcarrier indication field includes MCS indexes K +1 to L-1. Further, for MCS K +1 to L-1, which MCS is specifically configured is indicated by the MCS indication field in the downlink control information.

In a specific example, the value of the subcarrier indication field is j, and when j is greater than or equal to 0 and less than or equal to 18, the modulation and coding strategy set comprises MCS 0 to K. When j is more than or equal to 19 and less than or equal to 25, the modulation and coding strategy set comprises MCS K +1 to L-1. Value correspondence of subcarrier indication fieldIs shown in table eight, wherein I_scIndicating the value of the field for the subcarrier, nsc is the subcarrier index, I_MCSIs an MCS index.

Table eight

In yet another specific example, the subcarrier indication field has a value j, and the modulation and coding strategy set includes MCSs 0 to K when j is 12 ≦ j ≦ 18. When j is more than or equal to 19 and less than or equal to 25, the modulation and coding strategy set comprises MCS K +1 to L-1. The specific information corresponding to the value of the sub-carrier indication field is shown in table nine, wherein I_scIndicating the value of the field, n, for the subcarrier_scIs a subcarrier index, I_MCSIs an MCS index.

Watch nine

On the basis of the embodiment of the above application, the maximum modulation mode included in the first modulation and coding strategy set is 16QAM, and the first modulation and coding strategy set includes at least two of the following: the corresponding relation between the modulation and coding strategy index and the target code rate, the corresponding relation between the modulation and coding strategy index and the modulation method and the corresponding relation between the modulation and coding strategy index and the spectrum efficiency.

In this embodiment, the modulation scheme of the maximum order included in the first modulation and coding strategy set may be 16-ary quadrature amplitude modulation. The first modulation and coding strategy may include a correspondence between a modulation and coding strategy index and a target code rate, a correspondence between a modulation and coding strategy index and a modulation method, and a correspondence between a modulation and coding strategy index and a spectrum efficiency.

On the basis of the embodiment of the above application, the target code rate corresponding to the maximum modulation and coding strategy index in the first modulation and coding strategy set is 658.

In the embodiment of the present application, the first MCS set is a 4-bit MCS table, which includes 16 MCSs. Because the number of MCSs is limited, the maximum target code rate supported by the 16QAM associated MCS only reaches 658, which is low and cannot support higher data rate requirements. However, the overhead of the 4-bit MCS indication information is small, which is beneficial to correct decoding of the downlink control information.

Further, on the basis of the embodiment of the above application, a difference between spectral efficiencies corresponding to two adjacent modulation and coding strategy indexes in the first modulation and coding strategy set is greater than or equal to 0.05.

Specifically, there are no two MCSs with a difference of spectral efficiency smaller than 0.05 in the first modulation and coding strategy set, that is, there are no two MCSs with similar spectral efficiencies, where the difference of spectral efficiency smaller than 0.05 is used to indicate that the spectral efficiencies of the two MCSs are the same or very close to each other. Because the amount of 4-bit information is limited and there is no redundant information corresponding to the same or similar spectrum efficiency, the 4-bit MCS set should cover more different MCSs, which is beneficial to MCS allocation in different channel states. In an exemplary embodiment, the first modulation and coding scheme set may be as shown in table ten:

watch ten

MCS index I_MCS	Modulation order Qm	Target code rate	Spectral efficiency
				0	2	120	0.2344
1	2	157	0.3066
				2	2	193	0.3770
3	2	251	0.4902
				4	2	308	0.6016
5	2	379	0.7402
				6	2	449	0.8770
7	2	526	1.0273
				8	2	602	1.1758
9	4	340	1.3281
				10	4	378	1.4766
11	4	434	1.6953
				12	4	490	1.9141
13	4	553	2.1602
				14	4	616	2.4063
15	4	658	2.5703

Further, on the basis of the embodiment of the above application, in the first modulation and coding strategy set, the maximum value of the target code rate corresponding to the modulation and coding strategy index corresponding to 16qam is 948.

Specifically, the first MCS set may be a 5-bit MCS table, which contains more MCSs than a 4-bit MCS table, so that the 5-bit MCS table has a sufficient number of MCSs, and the maximum target code rate corresponding to the MCS is supported to 948. Thus, a 5-bit MCS table may support higher data rate requirements. Further, the first MCS set may include an MCS for retransmission, that is, the MCS only corresponds to the modulation scheme and does not correspond to the modulation target code rate and the spectral efficiency.

In an exemplary embodiment, the first MCS set is as shown in table eleven. Wherein, when pi/2BPSK modulation is enabled, q ═ 1; otherwise, q is 2. MCS 29, 30, 31 are MCS for retransmission, it is understood that the three MCS for retransmission in table eleven can also be defined as any three MCS index of MCS 23 to 31.

Watch eleven

In one specific example, the first MCS set is as shown in table twelve. Wherein MCS 30 and 31 are MCS for retransmission, it is understood that two MCS for retransmission in table twelve can also be defined as any two MCS indexes of MCS 23 to 31.

Watch twelve

In this embodiment, the target code rate is equal to a code rate of data bits multiplied by 1024.

Fig. 2 is a flowchart of a power configuration method provided in an embodiment of the present application, where the present embodiment is applicable to a case where a high-order modulation scheme is supported in wireless communication, and the method may be executed by a power configuration apparatus in the embodiment of the present application, where the apparatus may be implemented in a software and/or hardware manner, and may be generally integrated in a base station, and the method in the embodiment of the present application specifically includes the following steps:

step 210, determining a power offset parameter of the physical uplink shared channel according to a modulation mode in a modulation coding strategy configured for the corresponding physical uplink shared channel.

In the embodiment of the present application, a modulation and coding strategy configured for a physical uplink shared channel may be obtained, a power offset parameter configured for the corresponding physical uplink shared channel may be determined according to a modulation mode in the modulation and coding strategy, and a sending end may adjust uplink power according to the power offset parameter, so as to improve performance of uplink data transmission.

Step 220, configuring the transmission power for the physical uplink shared channel according to the power offset parameter.

Specifically, the power of the physical uplink shared channel may be compensated according to the power offset parameter, and the compensated power may be used as the transmission power configured for the physical uplink shared channel.

According to the embodiment of the application, the power offset parameter is determined through the modulation mode corresponding to the physical uplink shared channel, and the sending power is determined for the physical uplink shared channel through the power offset parameter, so that the performance of uplink data transmission is improved.

Further, on the basis of the embodiment of the application, when the modulation mode is low-order modulation, the power offset parameter is 0, and a modulation order of the low-order modulation is less than or equal to 2.

Further, on the basis of the embodiment of the application, when the modulation mode is high-order modulation, the power offset parameter is first power offset, and a modulation order of the high-order modulation is greater than or equal to 4.

Further, on the basis of the embodiment of the above application, the first power offset is indicated by a higher layer parameter and/or downlink control information.

Specifically, the base station indicates the value of the first power offset by using a higher layer parameter and/or downlink control information; and the terminal receives the high-level parameters and/or the downlink control information and determines the value of the first power offset.

Further, on the basis of the embodiment of the application, assuming that the first transmission power of the physical uplink shared channel is P and the power offset parameter is δ, the transmission power of the physical uplink shared channel is equal to P + δ. The first transmission power is the transmission power of a physical uplink shared channel in Release-16 Release NB-IoT.

In the embodiment of the present application, when the base station supports the high-order modulation method, a higher signal-to-noise ratio is required to ensure correct reception, so that the transmit power of the physical uplink shared channel is adjusted by using the power offset parameter, and power adjustment is performed for the high-order modulation. In this embodiment, the transmit power of the physical uplink shared channel is adjusted by using a power offset parameter, for example, power adjustment is performed for 16QAM modulation, and specifically, the transmit power of NPUSCH is determined by the following formula:

wherein δ is the power offset parameter, and δ is 0 for QPSK modulation; for 16QAM modulation, δ ═ δ_OFFSET。δ_OFFSEtFor said first power offset, δ_offsetIs indicated by a higher layer parameter or by downlink control information. Except delta, other parameters are Release-16 version protocolThe parameters defined in (1).

P_CMAX,c, (i) is the transmission power of the UE on the time slot i in the serving cell c, which is defined in the existing protocol;

M_NPUSCHcthe value of (i) is related to the transmission bandwidth, which is 1/4 for a 3.75kHz subcarrier spacing and {1,3,6,12} for a 15kHz subcarrier spacing;

P_{O_NPUSCHc}and (j) is represented as:

P_{O_NPUSCHc},(j)＝P_{O_NOMINAL_NPUSCH,c}(j)+P_{O_UE_NPUSHC,c}(j)。

for dynamic scheduling NPUSCH, j is 1; for random access NPUSCH, j is 2.

When j is 1, two parameters on the right side of the equation are given by high-level parameters; when j is 2, P_{O_UE_NPUSHC,c}(2)＝0，P_{O_NORMINA_LNPUSCHc,}(2)＝P_{O_PRE}+Δ_{PREAMBLE_sMg3}。α_c(j) The values are as follows: when j is 2, α_c(j) When j is 1, α is in NPUSCH format 2_c(j) 1, alpha in case of NPUSCH format 1_c(j) Informed by higher layer parameters. PL_cThe downlink path loss estimated for the UE.

Fig. 3 is a flowchart of a method for reporting channel quality according to an embodiment of the present application, where the embodiment is applicable to a case where a high-order modulation scheme is supported in wireless communication, and the method may be executed by a device for reporting channel quality according to an embodiment of the present application, where the device may be implemented in a software and/or hardware manner, and may be generally integrated in a base station, and the method according to the embodiment of the present application specifically includes the following steps:

step 310, determining a channel quality indication set, where the channel quality indication set includes an association relationship between a channel quality indication and a channel quality parameter, where the channel quality parameter includes at least one of: the modulation mode, the target code rate, the spectrum efficiency, the modulation coding strategy index, the transmission block size index and the repetition times, wherein the maximum modulation mode included in the channel quality indication set is 16 quadrature amplitude modulation.

Wherein a set of Channel Quality Indicators (CQIs) may be composed of one or more CQIs, each CQI being associated with a Channel quality parameter, the Channel quality parameter including at least one of: information such as modulation mode, target code rate, spectrum efficiency, modulation coding strategy index, transmission block size index and repetition times. The set of CQIs may be a CQI table. And step 320, reporting the channel quality based on the channel quality indication set.

Specifically, the terminal may upload the channel quality indicator to the base station to implement reporting of the channel quality.

In this embodiment, the CQI set is a 4-bit CQI table, where M CQI indexes are used for a target code rate or spectral efficiency of a corresponding MCS, and M is less than or equal to 16. However, since the number of MCSs is greater than or equal to M, M MCSs are selected from the MCS, and their target code rates or spectral efficiencies are in one-to-one correspondence with the M CQI indices.

Further, on the basis of the embodiment of the above application, the channel quality indication set includes N consecutive channel quality indication indexes, the N consecutive channel quality indication indexes sequentially correspond to target code rates or spectral efficiencies respectively associated with the N consecutive modulation and coding strategy indexes, and N is greater than or equal to 6.

For example, CQI indices 1 to 6 correspond to target code rates or spectral efficiencies of MCS indices 0 to 5, and assuming that the spectral efficiencies of MCS 0 to 5 are 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, respectively, CQI indices 1 to 6 correspond to spectral efficiencies of 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, respectively.

Further, on the basis of the embodiment of the above application, the maximum target code rate corresponding to 16qam in the cqi set is 948 or 658.

The maximum target code rate corresponding to 16QAM in the CQI set is the same as the maximum target code rate of the 16QAM MCS, when the maximum target code rate of the 16QAM MCS is 948, the maximum target code rate corresponding to 16QAM in the CQI set is 948, and when the maximum target code rate of the 16QAM MCS is 658, the maximum target code rate corresponding to 16QAM in the CQI set is 658.

In an exemplary embodiment, the maximum code rate for the 16QAM CQI in the CQI set is 658. The maximum code rate of 16QAM transmission is only supported to 658, which indicates that the requirement on the data rate is not high, and then in the high CQI index interval, the target code rate or the spectrum efficiency associated with the MCS index of the interval corresponding to the CQI may be reflected more roughly to the channel state to save the limited CQI information, specifically, the target code rate or the spectrum efficiency associated with the MCS 11,13,15 corresponding to the CQIs 13,14, 15. In a lower CQI interval, the CQI corresponds to a target code rate or spectral efficiency associated with a continuous MCS, and reflects a channel state in detail, so as to ensure reliability of data transmission, specifically, CQIs 2 to 12 correspond to target code rates or spectral efficiencies associated with MCSs 0 to 10.

Specifically, for example, a first MCS table is shown based on the table ten, CQIs 2 to 12 correspond to target code rates or spectral efficiencies associated with MCSs 0 to 10 in turn, and CQIs 13 to 15 correspond to target code rates or spectral efficiencies associated with MCSs 11,13, and 15 in turn. A CQI table may be as shown in table thirteen.

Watch thirteen

In the first CQI set, CQIs 10 to 15 correspond to target code rates and spectral efficiencies associated with MCSs 17 to 22.

In yet another specific example, in the first CQI set, the maximum code rate corresponding to the 16QAM CQI is 948. The maximum code rate of 16QAM transmission reaches 948, which means that the requirement on the data rate is high, and therefore, in the high CQI index interval, the target code rate or the spectrum efficiency associated with the continuous MCS corresponding to the CQI may be used to reflect the channel state in detail, and improve the data rate, specifically, the target code rate or the spectrum efficiency associated with MCS17 to 22 corresponding to CQIs 10 to 15. In a lower CQI interval, the target code rate or the spectrum efficiency associated with the MCS of the interval corresponding to the CQI is used for ensuring the reliability of data transmission and roughly reflecting the channel state so as to save limited CQI information. Specifically, CQIs 2 through 6 correspond to MCS 0,2,4,6,8 associated target code rates or spectral efficiencies, and CQIs 7,8,9 correspond to MCS 11,13,15 associated target code rates or spectral efficiencies.

Specifically, for example, based on the first MCS table described in table twelve, CQIs 2 to 6 sequentially correspond to target code rates or spectral efficiencies associated with MCS 0,2,4,6,8, CQIs 7 to 9 sequentially correspond to target code rates or spectral efficiencies associated with MCS 11,13,15, and CQIs 10 to 15 sequentially correspond to target code rates or spectral efficiencies associated with MCS17 to 22. A CQI table is shown in table fourteen.

Table fourteen

In this embodiment, the target code rate is equal to a code rate of data bits multiplied by 1024. Fig. 4 is a schematic structural diagram of a configuration apparatus for a modulation and coding strategy according to an embodiment of the present application, which is capable of executing a configuration method for a modulation and coding strategy according to any embodiment of the present invention, and has corresponding functional modules and beneficial effects of the execution method. The device can be implemented by software and/or hardware, and specifically comprises: a set determination module 401 and a policy configuration module 402.

A set determining module 401, configured to determine a first modulation and coding scheme set.

A strategy configuration module 402, configured to configure a modulation and coding strategy for target data based on the first modulation and coding strategy set.

According to the embodiment of the application, the set determining module determines the first modulation and coding strategy set, and the strategy configuration module configures the modulation and coding strategy for the target data according to the first modulation and coding strategy set, so that the support of a high-order modulation mode is realized, the communication performance of the narrowband Internet of things can be improved, and the communication network quality is enhanced.

Further, on the basis of the embodiment of the above application, the set determining module 401 includes:

a quantity selecting unit, configured to determine a first modulation and coding scheme set according to the quantity of the resource units, where the first modulation and coding scheme set includes at least one of: the corresponding relation between the modulation coding strategy index and the modulation mode, and the corresponding relation between the modulation coding strategy index and the transmission block size index.

Further, on the basis of the embodiment of the above application, the quantity selecting unit is specifically configured to: when the number of configured resource units belongs to a first number set or a second number set, the first modulation and coding strategy set includes a modulation and coding strategy subset, the modulation and coding strategy subset includes a preset number of modulation and coding strategies, a difference between TBS indexes corresponding to every two adjacent modulation and coding strategies in the preset number of modulation and coding strategies is K, K is greater than or equal to 2, wherein the first number set is different from the second number set, and a value of the preset number corresponds to the first number set or the second number set.

Further, on the basis of the embodiment of the above application, the quantity selection unit is further specifically configured to: when the configured number of the resource units belongs to a third number set, the modulation and coding strategy indexes in the first modulation and coding strategy set sequentially correspond to the transport block size indexes from 0 to 15 respectively.

Further, on the basis of the embodiment of the above application, the quantity selection unit is further specifically configured to: when the configured number of the resource units belongs to a fourth number set, the maximum index value of the transport block size index in the first modulation and coding strategy set is 13, and at least one pair of modulation and coding strategies exist, and the transport block sizes corresponding to the pair of modulation and coding strategies are the same and have different modulation modes.

Further, on the basis of the above application embodiment, when the modulation scheme of the modulation and coding strategy configured in the strategy configuration module 402 is 16qam, the number of repetitions of the physical shared channel corresponding to the target data is less than or equal to 2.

Further, on the basis of the embodiment of the above application, the method further comprises: and the high-level configuration module is used for taking the highest bit of the subcarrier indication domain in the downlink control information as one bit of the modulation coding strategy indication information when the high-level configuration parameters indicate that the data transmission supports high-level modulation, and the modulation order of the high-level modulation is more than or equal to 4.

Further, on the basis of the embodiment of the above application, the method further comprises: the high-level configuration module is further configured to indicate subcarrier information and a modulation and coding strategy set in a subcarrier indication field in the downlink control information when the high-level configuration parameter indicates that data transmission supports high-level modulation.

Further, on the basis of the embodiment of the above application, in the high-level configuration module, when the value of the subcarrier indication field is less than or equal to 18, the modulation and coding strategy set indicated by the subcarrier indication field includes MCS indices 0 to K, where K is greater than 1.

Further, on the basis of the embodiment of the above application, in the high-level configuration module, when the value of the subcarrier indication field is greater than or equal to 19, the modulation and coding strategy set indicated by the subcarrier indication field includes MCS indexes K +1 to L-1, where K is greater than 1, and L is the number of MCSs included in the first modulation and coding strategy set.

Further, on the basis of the embodiment of the foregoing application, the maximum modulation mode included in the first modulation and coding strategy set in the set determining module 401 is 16QAM, and the first modulation and coding strategy set includes at least two of the following: the corresponding relation between the modulation and coding strategy index and the target code rate, the corresponding relation between the modulation and coding strategy index and the modulation method and the corresponding relation between the modulation and coding strategy index and the spectrum efficiency.

Further, on the basis of the embodiment of the above application, the target code rate corresponding to the maximum modulation and coding strategy index in the first modulation and coding strategy set in the set determining module 401 is 658.

Further, on the basis of the embodiment of the above application, the difference between the spectral efficiencies corresponding to two adjacent modulation and coding strategy indexes in the first modulation and coding strategy set in the set determining module 401 is greater than or equal to 0.05.

Further, on the basis of the embodiment of the above application, in the first modulation and coding strategy set in the set determining module 401, the maximum value of the target code rate corresponding to the modulation and coding strategy index corresponding to 16qam is 948.

Fig. 5 is a schematic structural diagram of a power configuration apparatus provided in an embodiment of the present application, which is capable of executing a power configuration method provided in any embodiment of the present invention, and has functional modules and beneficial effects corresponding to the execution method. The device can be implemented by software and/or hardware, and specifically comprises: a set determination module 501 and a policy configuration module 502.

An offset parameter module 501, configured to determine a power offset parameter of the physical uplink shared channel according to a modulation scheme in a modulation coding strategy configured for the corresponding physical uplink shared channel.

A power configuration module 502, configured to configure a transmission power for the physical uplink shared channel according to the power offset parameter.

According to the embodiment of the application, the offset parameter module determines the power offset parameter through the modulation mode corresponding to the physical uplink shared channel, and the power configuration module determines the sending power for the physical uplink shared channel through the power offset parameter, so that the accuracy of sending power determination is improved.

Further, on the basis of the embodiment of the application, when the modulation mode in the offset parameter module 501 is low-order modulation, the power offset parameter is 0, wherein the modulation order of the low-order modulation is less than or equal to 2.

Further, on the basis of the embodiment of the application, when the modulation mode in the offset parameter module 501 is high-order modulation, the power offset parameter is a first power offset, where a modulation order of the high-order modulation is greater than or equal to 4.

Further, on the basis of the embodiment of the above application, the first power offset in the offset parameter module 501 is indicated by a higher layer parameter and/or downlink control information.

Fig. 6 is a schematic structural diagram of a device for reporting channel quality according to an embodiment of the present application, which is capable of executing a method for reporting channel quality according to any embodiment of the present invention, and has functional modules and beneficial effects corresponding to the execution method. The device can be implemented by software and/or hardware, and specifically comprises: an indication aggregation module 601 and a quality reporting module 602.

An indication set module 601, configured to determine a channel quality indication set, where the channel quality indication set includes an association relationship between channel quality indications and channel quality parameters, where the channel quality parameters include at least one of: the modulation mode, the target code rate, the spectrum efficiency, the modulation coding strategy index, the transmission block size index and the repetition times, wherein the maximum modulation mode included in the channel quality indication set is 16 quadrature amplitude modulation.

A quality reporting module 602, configured to report channel quality based on the set of channel quality indicators.

Further, on the basis of the above application embodiment, the channel quality indication set in the indication set module 601 includes N consecutive channel quality indication indexes, where the N consecutive channel quality indication indexes sequentially correspond to N consecutive modulation coding strategy indexes and respectively associated target code rates or spectral efficiencies, and N is greater than or equal to 6.

Further, on the basis of the embodiment of the above application, the maximum target code rate corresponding to 16qam in the channel quality indication set in the indication set module 601 is 948 or 658.

Fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application, and as shown in fig. 7, the electronic device includes a processor 70, a memory 71, an input device 72, and an output device 73; the number of the processors 70 in the electronic device may be one or more, and one processor 70 is taken as an example in fig. 7; the device processor 70, memory 71, input device 72 and output device 73 may be connected by a bus or other means, as exemplified by the bus connection in fig. 7.

The memory 71 is a computer-readable storage medium, and can be used to store software programs, computer-executable programs, and modules, such as any corresponding modules of the configuration of modulation and coding strategies, the configuration of power, and the reporting device of channel quality (the set determining module 401 and the policy configuring module 402, the set determining module 501 and the policy configuring module 502, or the indication set module 601 and the quality reporting module 602 in this embodiment of the present application). The processor 70 executes various functional applications of the device and data processing, i.e., implements the above-described timing determination method of the network, by executing software programs, instructions, and modules stored in the memory 71.

The memory 71 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 71 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 71 may further include memory located remotely from the processor 70, which may be connected to the device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The input device 72 may be used to receive entered numeric or character information and to generate key signal inputs relating to user settings and function controls of the apparatus. The output device 73 may include a display device such as a display screen.

Embodiments of the present application also provide a storage medium containing computer-executable instructions, which when executed by a computer processor, perform a method of configuring a modulation coding strategy, the method comprising:

And/or, further for performing a method of configuring power, the method comprising:

determining a power offset parameter of a physical uplink shared channel according to a modulation mode in a modulation coding strategy configured for the physical uplink shared channel; and configuring the sending power for the physical uplink shared channel according to the power offset parameter.

And/or, the method is further used for performing a method for reporting channel quality, and the method includes:

determining a channel quality indication set, wherein the channel quality indication set comprises an association relationship between channel quality indications and channel quality parameters, and the channel quality parameters comprise at least one of the following: the modulation mode, the target code rate, the spectrum efficiency, the modulation coding strategy index, the transmission block size index and the repetition times, wherein the maximum modulation mode included in the channel quality indication set is 16 orthogonal amplitude modulation; and reporting the channel quality based on the channel quality indication set.

Of course, the storage medium provided by the embodiments of the present invention contains computer-executable instructions, and the computer-executable instructions are not limited to the method operations described above, and may also perform related operations in the method provided by any embodiment of the present application.

One of ordinary skill in the art will appreciate that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof.

In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.

The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, and are not to be construed as limiting the scope of the invention. Any modifications, equivalents and improvements which may occur to those skilled in the art without departing from the scope and spirit of the present invention are intended to be within the scope of the claims.

Claims

1. A configuration method of a modulation and coding strategy is applied to a first node, and the method comprises the following steps:

determining a first modulation and coding strategy set;

and configuring a modulation and coding strategy for target data based on the first modulation and coding strategy set.

2. The method of claim 1, wherein determining the first set of modulation and coding strategies comprises:

determining a first modulation and coding scheme set according to the number of resource units, wherein the first modulation and coding scheme set at least comprises at least one of the following: the corresponding relation between the modulation coding strategy index and the modulation mode, and the corresponding relation between the modulation coding strategy index and the transmission block size index.

3. The method of claim 2, wherein determining the first set of modulation and coding strategies based on the number of resource units comprises:

when the number of configured resource units belongs to a first number set or a second number set, the first modulation and coding strategy set includes a modulation and coding strategy subset, the modulation and coding strategy subset includes a preset number of modulation and coding strategies, a difference between TBS indexes corresponding to every two adjacent modulation and coding strategies in the preset number of modulation and coding strategies is K, K is greater than or equal to 2, wherein the first number set is different from the second number set, and a value of the preset number corresponds to the first number set or the second number set.

4. The method of claim 2, wherein determining the first set of modulation and coding strategies based on the number of resource units comprises:

5. The method of claim 2, wherein determining the first set of modulation and coding strategies based on the number of resource units comprises:

when the configured number of the resource units belongs to a fourth number set, the maximum index value of the transport block size index in the first modulation and coding strategy set is 13, and at least one pair of modulation and coding strategies exist, and the transport block sizes corresponding to the pair of modulation and coding strategies are the same and have different modulation modes.

6. The method according to claim 2, wherein when the modulation scheme of the configured modulation and coding scheme is 16qam, the number of repetitions of the physical shared channel corresponding to the target data is less than or equal to 2.

7. The method of claim 1, further comprising: when the high-level configuration parameter indicates that the data transmission supports high-level modulation, the highest bit of the subcarrier indication field in the downlink control information is used as one bit of the modulation coding strategy indication information, and the modulation order of the high-level modulation is greater than or equal to 4.

8. The method of claim 1, further comprising: and when the high-level configuration parameters indicate that the data transmission supports high-level modulation, the subcarrier indication domain in the downlink control information indicates subcarrier information and a modulation coding strategy set.

9. The method of claim 8, further comprising: and under the condition that the value of the subcarrier indication field is less than or equal to 18, the modulation and coding strategy set indicated by the subcarrier indication field comprises MCS indexes 0 to K, wherein K is greater than 1.

10. The method of claim 8, further comprising: and when the value of the subcarrier indication field is greater than or equal to 19, the modulation and coding strategy set indicated by the subcarrier indication field comprises MCS indexes K +1 to L-1, wherein K is greater than 1, and L is the MCS number contained in the first modulation and coding strategy set.

11. The method of claim 1, wherein the first modulation and coding scheme set comprises a maximum modulation scheme of 16QAM and the first modulation and coding scheme set comprises at least two of the following: the corresponding relation between the modulation and coding strategy index and the target code rate, the corresponding relation between the modulation and coding strategy index and the modulation method and the corresponding relation between the modulation and coding strategy index and the spectrum efficiency.

12. The method of claim 11, wherein a target code rate corresponding to a maximum modulation and coding strategy index in the first set of modulation and coding strategies is 658.

13. The method of claim 11, wherein a difference between spectral efficiencies corresponding to two adjacent modulation and coding scheme indexes in the first set of modulation and coding schemes is greater than or equal to 0.05.

14. The method of claim 11, wherein a maximum value of the target code rate corresponding to the modulation and coding strategy index corresponding to 16qam in the first modulation and coding strategy set is 948.

15. A method for configuring power, applied to a first node, the method comprising:

determining a power offset parameter of a physical uplink shared channel according to a modulation mode in a modulation coding strategy configured for the physical uplink shared channel;

and configuring the sending power for the physical uplink shared channel according to the power offset parameter.

16. The method of claim 15, wherein when the modulation scheme is low-order modulation, the power offset parameter is 0, and wherein a modulation order of the low-order modulation is less than or equal to 2.

17. The method of claim 15, wherein when the modulation scheme is high-order modulation, the power offset parameter is a first power offset, and a modulation order of the high-order modulation is greater than or equal to 4.

18. The method according to claim 17, wherein the first power offset is indicated by a higher layer parameter and/or downlink control information.

19. A method for reporting channel quality is applied to a second node, and the method comprises:

determining a channel quality indication set, wherein the channel quality indication set comprises an association relationship between channel quality indications and channel quality parameters, and the channel quality parameters comprise at least one of the following: the modulation mode, the target code rate, the spectrum efficiency, the modulation coding strategy index, the transmission block size index and the repetition times, wherein the maximum modulation mode included in the channel quality indication set is 16 orthogonal amplitude modulation;

and reporting the channel quality based on the channel quality indication set.

20. The method of claim 19, wherein the cqi set comprises N consecutive cqi indices, and the N consecutive cqi indices sequentially correspond to N consecutive mcs indices respectively associated with a target code rate or spectral efficiency, where N is greater than or equal to 6.

21. The method of claim 19, wherein the maximum target code rate for 16qam in the set of cqi's is 948 or 658.

22. An electronic device, characterized in that the electronic device comprises:

one or more processors;

a memory for storing one or more programs;

when executed by the one or more processors, cause the one or more processors to implement a method as recited in any one of claims 1-14, or 15-18, or 19-21.

23. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the method according to any one of claims 1-14 or 15-18 or 19-21.