CN109565866B

CN109565866B - Wireless communication method, terminal equipment and network equipment

Info

Publication number: CN109565866B
Application number: CN201780050018.4A
Authority: CN
Inventors: 林亚男; ***
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-02-24
Filing date: 2017-02-24
Publication date: 2021-03-09
Anticipated expiration: 2037-02-24
Also published as: CN109565866A; WO2018152789A1

Abstract

A wireless communication method, a terminal device and a network device can save resources and are compatible with more terminal devices. The method comprises the following steps: the terminal equipment receives a downlink control signaling sent by the network equipment, wherein the downlink control signaling comprises a first information domain and a second information domain; according to the first information domain, the end equipment determines whether a target transmission block scheduled by the downlink control signaling is transmitted for the first time or is transmitted repeatedly; when the target transmission block scheduled by the downlink control signaling is transmitted for the first time, the terminal equipment determines a modulation coding grade according to the second information field, and transmits the target transmission block with the network equipment by using the modulation coding grade; when the target transmission block scheduled by the downlink control signaling is transmitted repeatedly, the terminal device determines the coding block or the coding block group to be retransmitted in the target transmission block according to the second information field, and transmits the coding block or the coding block group between the terminal device and the network device.

Description

Wireless communication method, terminal equipment and network equipment

Technical Field

The present application relates to the field of communications, and more particularly, to a wireless communication method, a terminal device, and a network device.

Background

In the current wireless communication system, during the communication process between the terminal device and the network device, the sending end will use the transmission block as a unit to perform coding and send to the receiving end. If the receiving end fails to decode the transmission block, a Negative Acknowledgement (NACK) message is sent to the sending end, and the sending end retransmits the transmission block.

With the increase of terminal devices, mobile resources are increasingly tense, and how to avoid resource waste as much as possible in the communication process between the terminal devices and the network devices is a problem to be solved urgently.

Disclosure of Invention

The embodiment of the application provides a wireless communication method, terminal equipment and network equipment, which can save resources and are compatible with more terminal equipment.

In a first aspect, a wireless communication method is provided, including:

the terminal equipment receives a downlink control signaling sent by the network equipment, wherein the downlink control signaling comprises a first information domain and a second information domain;

according to the first information domain, the terminal equipment determines whether a target transmission block scheduled by the downlink control signaling is transmitted for the first time or is transmitted repeatedly; when a target transmission block scheduled by the downlink control signaling is transmitted for the first time, the terminal equipment determines a modulation and coding level according to the second information field, and the terminal equipment uses the modulation and coding level to transmit the target transmission block with the network equipment;

when the target transmission block scheduled by the downlink control signaling is transmitted repeatedly, the terminal device determines a coding block or a coding block group to be retransmitted in the target transmission block according to the second information field, and transmits the coding block or the coding block group between the terminal device and the network device.

With reference to the first aspect, in a possible implementation manner of the first aspect, the second information field includes N bits, and when the target transport block scheduled by the downlink control signaling is repeatedly transmitted, M bits of the N bits are used to indicate the coding block or the coding block group to be retransmitted, where N is a positive integer, and M is a positive integer no greater than N;

the determining, by the terminal device, the coding block or the coding block group to be retransmitted in the target transmission block according to the second information field includes: and the terminal equipment determines the coding block or the coding block group to be retransmitted according to the M bits.

With reference to the first aspect or any one of the foregoing implementations, in another possible implementation of the first aspect, M is less than N;

when the target transport block scheduled by the downlink control signaling is repeatedly transmitted, the method further includes:

according to other bits except the M bits in the N bits included in the second information domain, the terminal device determines a modulation mode of the coding block or the coding block group to be retransmitted;

the transmission of the coding block or the coding block group between the terminal device and the network device includes: and the terminal equipment transmits the coding block or the coding block group with the network equipment by using the modulation mode.

With reference to the first aspect or any one of the foregoing implementations, in another possible implementation of the first aspect, the target transport block includes M coding blocks or coding block groups, and when the target transport block scheduled by the downlink control signaling is repeatedly transmitted, the M bits indicate, in a bit mapping manner, whether each coding block or coding block group in the M coding blocks or coding block group is retransmitted or not.

With reference to the first aspect or any one of the foregoing implementation manners of the first aspect, in another possible implementation manner of the first aspect, when the target transport block scheduled by the downlink control signaling is repeatedly transmitted, the M bits indicate 2^MAnd the coding block or the coding block group to be retransmitted is the coding block or the coding block group included in the coding block set.

With reference to the first aspect or any one of the foregoing implementations, in another possible implementation of the first aspect, all fields in the second information field are used to indicate the modulation and coding level when the target transport block scheduled by the downlink control signaling is initially transmitted.

With reference to the first aspect or any one of the foregoing implementations, in another possible implementation of the first aspect, the first information field is used to indicate a current number of transmissions of the target transport block scheduled by the downlink control signaling;

the determining, by the terminal device, whether the target transport block scheduled by the downlink control signaling is initially transmitted or repeatedly transmitted according to the first information field includes:

and according to the current transmission times indicated by the first information field, the terminal equipment determines whether the target transmission block scheduled by the downlink control signaling is transmitted for the first time or is transmitted repeatedly.

With reference to the first aspect or any one of the foregoing implementation manners of the first aspect, in another possible implementation manner of the first aspect, a value of the first information field is 0 or 1; wherein, 0 is used for indicating the target transmission block is primary transmission, and 1 is used for indicating the target transmission block is repeated transmission; or, 1 is used for indicating the target transmission block as primary transmission, and 0 is used for indicating the target transmission block as repeat transmission;

and according to the value of the first information field, the terminal equipment determines whether the target transmission block scheduled by the downlink control signaling is transmitted for the first time or transmitted repeatedly.

With reference to the first aspect or any one of the foregoing implementations of the first aspect, in another possible implementation of the first aspect, the first information field includes a first field and a second field;

the first field is used for indicating whether the target transmission block scheduled by the downlink control signaling is new data or not compared with the data scheduled last time adjacent in the time domain, and the second field is used for indicating the result of the current transmission times of the data scheduled by the downlink control signaling modulo n, wherein n is a positive integer;

from the first information field, the terminal device determining whether the target transport block is initially transmitted or repeatedly transmitted, including:

and the terminal equipment determines whether the target transmission block scheduled by the downlink control signaling is transmitted for the first time or is transmitted repeatedly by combining the first field and the second field.

With reference to the first aspect or any one of the above-described implementations, in another possible implementation of the first aspect, n is 2.

With reference to the first aspect or any one of the foregoing implementations, in another possible implementation of the first aspect, the downlink control signaling includes a third information field, and when the target transport block scheduled by the downlink control signaling is repeatedly transmitted, the method further includes:

according to the third information domain, the terminal equipment determines the resource position and/or size for transmitting the coding block or the coding block group to be retransmitted;

the transmission of the coding block or the coding block group between the terminal device and the network device includes:

and according to the resource position and/or size, the terminal equipment and the network equipment transmit the coding blocks or the coding block groups.

With reference to the first aspect or any one of the foregoing implementation manners of the first aspect, in another possible implementation manner of the first aspect, the target transport block scheduled by the downlink control signaling is repeatedly transmitted, the target transport block scheduled by the downlink control signaling is downlink data, and before the terminal device receives the downlink control signaling sent by the network device, the method further includes:

and the terminal equipment sends a feedback message to the network equipment, wherein the feedback message is used for indicating the coding blocks or the coding block groups which are successfully decoded in the target transmission block and/or indicating the coding blocks or the coding block groups which are not successfully decoded.

In a second aspect, a wireless communication method is provided, including:

the network equipment generates a downlink control signaling;

the downlink control signaling comprises a first information field and a second information field, wherein the first information field is used for indicating whether a target transmission block scheduled by the downlink control signaling is primarily transmitted or repeatedly transmitted;

when a target transport block scheduled by the downlink control signaling is primarily transmitted, the second information field is used for indicating a modulation and coding level, and the modulation and coding level is used for transmitting the target transport block between the terminal device and the network device;

when the target transmission block scheduled by the downlink control signaling is a repeated transmission, the second information field is used for indicating a coding block or a coding block group to be retransmitted in the target transmission block;

and the network equipment sends the downlink control signaling to the terminal equipment.

With reference to the second aspect, in a possible implementation manner of the second aspect, the second information field includes N bits, and when the target transport block scheduled by the downlink control signaling is a repeated transport, M bits of the N bits are used to indicate the coding block or the coding block group to be retransmitted, where N is a positive integer, and M is a positive integer not greater than N.

With reference to the second aspect or any one of the foregoing possible implementations of the second aspect, in another possible implementation of the second aspect, the M is smaller than N, and when a target transport block scheduled by the downlink control signaling is a repeated transmission, other bits, except the M bits, of the N bits included in the second information domain indicate a modulation scheme used for the coding block or the coding block group to be retransmitted.

With reference to the second aspect or any one of the foregoing possible implementations of the second aspect, in another possible implementation of the second aspect, the target transport block includes M coding blocks or coding block groups, and when the target transport block scheduled by the downlink control signaling is a repeated transmission, the M bits indicate, in a bit mapping manner, whether each coding block or coding block group in the M coding blocks or coding block group needs to be retransmitted.

With reference to the second aspect or any one of the foregoing possible implementations of the second aspect, in another possible implementation of the second aspect, when a target transport block scheduled by the downlink control signaling is a repeated transmission, the M bits indicate 2^MAnd one of the coding block sets, wherein the coding block or the coding block group to be retransmitted comprises the coding block or the coding block group included in the coding block set.

With reference to the second aspect or any one of the foregoing possible implementations of the second aspect, in another possible implementation of the second aspect, when a target transport block scheduled by the downlink control signaling is an initial transmission, all fields in the second information field are used to indicate the first modulation and coding level.

With reference to the second aspect or any one of the foregoing possible implementations of the second aspect, in another possible implementation of the second aspect, the first information field is used to indicate a current number of transmissions of the target transport block scheduled by the downlink control signaling.

With reference to the second aspect or any one of the foregoing possible implementation manners of the second aspect, in another possible implementation manner of the second aspect, a value of the first information field is 0 or 1; wherein, 0 is used for indicating the target transmission block is primary transmission, and 1 is used for indicating the target transmission block is repeated transmission; or, 1 is used for indicating the target transmission block as primary transmission, and 0 is used for indicating the target transmission block as repeat transmission.

With reference to the second aspect or any one of the foregoing possible implementations of the second aspect, in another possible implementation of the second aspect, the first information field includes a first field and a second field;

the first field is used for indicating whether the data scheduled by the downlink control signaling is new data compared with the data scheduled last time adjacent in the time domain, and the second field is used for indicating the result of the current transmission times of the data scheduled by the downlink control signaling after the modulo n.

With reference to the second aspect or any one of the above possible implementations of the second aspect, in another possible implementation of the second aspect, n is 2.

With reference to the second aspect or any one of the foregoing possible implementations of the second aspect, in another possible implementation of the second aspect, the downlink control signaling includes a third information field, and when the target transport block scheduled by the downlink control signaling is a repeated transport, the third information field is used to indicate a resource location and/or size when the coding block or the coding block group is transported.

With reference to the second aspect or any one of the foregoing possible implementation manners of the second aspect, in another possible implementation manner of the second aspect, the data scheduled by the downlink control signaling is downlink data, and the target transport block is a repeated transport, and the method further includes:

the network device receives a feedback message sent by the terminal device, where the feedback message is used to indicate a coding block or a coding block group that is successfully decoded and/or a coding block group that is not successfully decoded in the target transmission block;

and determining a coding block to be retransmitted in the target transmission block according to the feedback message so as to generate the downlink control signaling.

In a third aspect, a terminal device is provided, which may include means for implementing the method in the first aspect or any one of its possible implementations.

In a fourth aspect, a network device is provided, which may include means for implementing the method of the second aspect or any possible implementation thereof.

In a fifth aspect, a terminal device is provided, which may include a memory storing instructions and a processor, the memory being configured to invoke the instructions stored in the memory to perform the method of the first aspect or any one of its optional implementations.

In a sixth aspect, a network device is provided, which may include a memory storing instructions and a processor, the memory for invoking the instructions stored in the memory to perform the method of the second aspect or any one of its optional implementations.

In a seventh aspect, there is provided a computer readable medium storing program code for execution by a terminal device, the program code comprising instructions for performing the method of the first aspect or its various implementations, or comprising instructions for performing the method of the second aspect or its various implementations.

In an eighth aspect, a system chip is provided, where the system chip includes an input interface, an output interface, a processor and a memory, and the processor is configured to execute codes in the memory, and when the codes are executed, the processor may implement the method in the first aspect and various implementations, or implement the method in the second aspect and various implementations.

Therefore, in this embodiment of the present application, the downlink control signaling includes a first information field and a second information field, and the terminal device may determine, from the first information field, whether a currently scheduled transport block is initially transmitted or repeatedly transmitted; when the currently scheduled transmission block is the initial transmission, the terminal device may determine, from the second information field, a modulation and coding level for transmitting the transmission block; and when the current scheduled transmission block is the repeated transmission, the terminal equipment determines the coding block or the coding block group to be retransmitted in the transmission block from the second information domain and retransmits the coding block or the coding block group, so that the retransmission can be carried out by taking the coding block or the coding block group as a unit, the resource waste caused by the retransmission of the transmission block can be avoided, the information domain indicating the modulation coding level of the transmission block and the information domain indicating the coding block or the coding block group to be retransmitted are the same information domain, more information can be borne by the original information domain, the excessive change of signaling is avoided, more terminal equipment can be compatible, a new information domain does not need to be added in downlink control signaling, and the resource can be saved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of a wireless communication system according to an embodiment of the application.

Fig. 2 is a schematic flow chart of a wireless communication method according to an embodiment of the application.

Fig. 3 is a schematic flow chart of a wireless communication method according to an embodiment of the application.

Fig. 4 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 5 is a schematic block diagram of a network device according to an embodiment of the present application.

Fig. 6 is a schematic block diagram of a communication device according to an embodiment of the present application.

FIG. 7 is a schematic block diagram of a system chip according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (LTE), a Frequency Division Duplex (FDD) System, a Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication System, or a 5G System in the future.

Fig. 1 illustrates a wireless communication system 100 to which an embodiment of the present application is applied. The wireless communication system 100 may include a network device 110. Network device 100 may be a device that communicates with a terminal device. Network device 100 may provide communication coverage for a particular geographic area and may communicate with terminal devices (e.g., UEs) located within the coverage area. Optionally, the Network device 100 may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Base Station (NodeB, NB) in a WCDMA system, an evolved Node B (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN), or a Network device in a relay Station, an Access point, a vehicle-mounted device, a wearable device, a Network-side device in a future 5G Network, or a Network device in a future evolved Public Land Mobile Network (PLMN), or the like.

The wireless communication system 100 also includes at least one terminal device 120 located within the coverage area of the network device 110. The terminal device 120 may be mobile or stationary. Alternatively, terminal Equipment 120 may refer to an access terminal, User Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, User terminal, wireless communication device, User agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device having Wireless communication capabilities, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved PLMN, etc.

Alternatively, the 5G system or network may also be referred to as a New Radio (NR) system or network.

Fig. 1 exemplarily shows one network device and two terminal devices, and optionally, the wireless communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device, which is not limited in this embodiment of the present application.

Optionally, the wireless communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Fig. 2 is a schematic flow chart diagram of a wireless communication method 200 according to an embodiment of the present application. As shown in fig. 2, the method 200 includes the following.

In 210, the terminal device receives a downlink control signaling sent by the network device, where the downlink control signaling includes a first information field and a second information field.

In 220, from the first information field, the terminal device determines whether the target transport block scheduled by the downlink control signaling is an initial transmission or a repeated transmission.

In one implementation, the first information field is used to indicate the current transmission times of the target transport block scheduled by the downlink control signaling; and according to the current transmission times indicated by the first information field, the terminal equipment determines whether the current transmission of the target transmission block scheduled by the downlink control signaling is initial transmission or repeated transmission.

For example, the information field indicates that the transmission of the currently scheduled target transport block is the 1 st time, which indicates that the currently scheduled target transport block is the initial transmission, and the information field indicates that the transmission of the currently scheduled target transport block is the number of times greater than 1, which indicates that the currently scheduled target transport block is the repeated transmission.

Optionally, the transmission times refers to the total times of the branch tip data of a specific data, plus the transmission of this time and the previous transmission.

In one implementation, the value of the first information field is 0 or 1; wherein, 0 is used for indicating the target transmission block as primary transmission, and 1 is used for indicating the target transmission block as repeat transmission; or, 1 is used to indicate the target transport block as the primary transport, and 0 is used to indicate the target transport block as the repeat transport; and according to the value of the first information field, the terminal equipment determines whether the target transmission block scheduled by the downlink control signaling is transmitted for the first time or is transmitted repeatedly.

Optionally, in this implementation, the first information field may be a 1-bit information field.

In one implementation, the first information field includes a first field and a second field; the first field is used for indicating whether the data scheduled by the downlink control signaling is new data or not compared with the data scheduled last time adjacent in the time domain, and the second field is used for indicating the result of the current transmission times of the data scheduled by the downlink control signaling after the modulus of n; the terminal device determines whether the downlink control signaling scheduling target transport block is transmitted for the first time or is transmitted repeatedly according to the first field and the second field. Optionally, n is 2.

Optionally, in this embodiment of the present application, the first field may indicate that the data is new data compared to the last scheduled data by flipping a value in the field, and if the value is not flipped, the first field indicates that the data is not new data compared to the last scheduled data. Here, the inversion means changing from 1 to 0, or changing from 0 to 1.

For example, if slot n +1 is new compared to the data transmitted in slot n, the value of the first field may be changed from 0 to 1, if slot n +2 is not new compared to the data transmitted in slot n +1, the value of the first field remains 1, if slot n +3 is new compared to the data transmitted in slot n +2, the value of the first field is changed from 0 to 1. However, if the signaling of the time slot n +1 is lost, the terminal device may regard the data of the time slot n +2 as new data, that is, the transmission is an initial transmission, which indicates that the modulation and coding level needs to be acquired from the second information field, whereas the data transmission of the time slot n +2 is not an initial transmission, but is a repeated transmission, and the coding block to be retransmitted needs to be acquired from the second information field.

In order to avoid the problem, the first information field of the embodiment of the present application includes a second field, where the second field is a result of indicating that the number of times of current transmission of the data scheduled by the downlink control signaling is modulo n. Alternatively n may be greater than or equal to 2.

For example, as shown in table 1 below as an example, if the xth transport block a in the slot n has a first field whose value is 0, and the transport block B is transmitted for the first time in the slot n +1, the first field is inverted to 1, the second field is 1 modulo 2, and the slot n +2 transmits at least part of the encoded blocks in the transport block B for the second time, the first field does not become 1, and the second field is 0 modulo 2, and if the downlink control signaling in the slot n +1 is lost, the terminal device combines the second field (the first bit of the first information field) of the slot n +2, and the second field has a value of 0, and is not transmitted for the first time, and thus may be determined as a repeat transmission.

TABLE 1

In 230, when the target transport block scheduled by the downlink control signaling is the initial transmission, the terminal device determines a modulation and coding level from the second information field, and the terminal device transmits the target transport block with the network device using the modulation and coding level.

Optionally, in this embodiment of the present application, the downlink control signaling may further include a fourth information field, where the information field may include information such as the number and the position of PRBs used for transmitting the current transport block, so that the terminal device may determine the bit size of the currently transmitted transport block by combining the information in the second information field and the information in the fourth information field.

Alternatively, the second information field may be referred to as a Modulation and Coding Scheme (MCS) information field.

Optionally, when the target transport block scheduled by the downlink control signaling is an initial transmission, all fields in the second information field are used for indicating the modulation and coding level.

In 240, when the target transport block scheduled by the downlink control signaling is a repeated transport, the terminal device determines, from the second information field, a coding block or a coding block group to be retransmitted in the target transport block, and performs transmission of the coding block or the coding block group between the terminal device and the network device.

Alternatively, the transport block may include a plurality of coding blocks, and may be in units of coding blocks during retransmission, or may be divided into a plurality of coding block groups, and may be in units of coding block groups during retransmission. The coding block group may include at least one coding block, and the number of coding blocks included in different coding block groups in the same transmission block may be the same or different.

Optionally, the second information field includes N bits, and when a target transport block scheduled by the downlink control signaling is a repeated transport, M bits of the N bits are used to indicate the coding block or the coding block group to be retransmitted, where N is a positive integer, and M is a positive integer no greater than N; the terminal equipment determines the coding block or the coding block group to be retransmitted from the M bits.

Optionally, M is less than N; the M bits may be the first M bits or the last M bits of the N bits.

Optionally, the terminal device determines a modulation scheme of the coding block or the coding block group to be retransmitted from other bits except the M bits in the N bits included in the second information field; and the terminal equipment uses the modulation mode to transmit the coding block or the coding block group with the network equipment.

Alternatively, the Modulation scheme indicated by the second information field may be a direct indication scheme, for example, as shown in table 2, assuming that the N-M bits are 2 bits, when the 2 bits have a value of 00, the Modulation scheme is Quadrature Phase Shift Keying (QPSK), when the 2 bits have a value of 01, the Modulation scheme is 16 Quadrature Amplitude Modulation (QAM), when the 2 bits have a value of 10, the Modulation scheme is 64QAM, and when the 2 bits have a value of 11, the Modulation scheme is 256 QAM.

TABLE 2

N-M bit information	Modulation system
		00	QPSK
01	16QAM
		10	64QAM
11	256QAM

Alternatively, the modulation scheme indicated by the second information field is an indirect indication scheme, for example, as shown in table 3, assuming that the N-M bit is 2 bits, the modulation scheme is increased by 1 level with respect to the initial transmission when the 2 bits have a value of 00, the modulation scheme is decreased by 1 level when the 2 bits have a value of 01, and the modulation scheme is decreased by 2 levels compared to the initial transmission when the 2 bits have a value of 10 and the modulation scheme is decreased by 2 levels when the 2 bits have a value of 11.

TABLE 3

N-M bit information	Modulation system
		00	1 level increase relative to initial transmission
01	Same as initial transmission
		10	Reduced by 1 stage relative to the initial transmission
11	Reduced by 2 stages relative to the initial transmission

The following describes how to determine the coding block to be retransmitted when the target transport block is a duplicate transmission.

In one implementation, the target transport block includes M coding blocks or coding block groups, and the M bits indicate whether each of the M coding blocks or coding block groups needs to be retransmitted or not by means of bit mapping.

For example, if the transport block has 3 coding blocks or coding block groups, it is indicated by 3 bits whether the 3 coding blocks or coding block groups need to be retransmitted. E.g. 110, then it indicates that the 1 st and 2 nd coding blocks or coding block groups need to be retransmitted, and the 3 rd coding block or coding block group needs to be retransmitted.

In another implementation, the M bits indicate 2^MA coding block set in a coding block set, wherein the coding block or the coding block group to be retransmitted comprises the coding block or the coding block group included in the coding block set.

For example, assuming that M is 3, a transport block can be divided into 4 coding blocks or coding block groups at most, 2^MThe 8 coding block sets may be as shown in table 4 below.

TABLE 4

Optionally, the downlink control signaling includes a third information field, and when a target transport block scheduled by the downlink control signaling is a repeated transport, the terminal device determines, from the third information field, a resource location and/or a resource size for transmitting the coding block or the coding block group to be retransmitted; and according to the resource position and/or size, the terminal equipment and the network equipment transmit the coding block or the coding block group.

Alternatively, the bit size of the encoded block may be the same as the initial transmission time.

Optionally, the data scheduled by the downlink control signaling is downlink data, and before the terminal device receives the downlink control signaling sent by the network device, the terminal device sends a feedback message to the network device, where the feedback message is used to indicate a coding block or a coding block group that is successfully decoded in the transmitted transmission block, and/or is used to indicate a coding block or a coding block group that is not successfully decoded, so that the network device may determine, according to the feedback message, a coding block or a coding block group to be retransmitted by the terminal device.

Optionally, in this embodiment of the present application, the second information field may be referred to as an MCS information field, but this embodiment of the present application is not limited thereto.

Optionally, in this embodiment of the present application, the downlink control signaling may include an information field, and according to the information field, the terminal device may index to the target transport block. Alternatively, the downlink control signaling may not include the information field, for example, when determining that the target transport block is a repeated transport, the terminal device may determine a transport block transmitted last time as the target transport block, or when determining that the target transport block is an initial transport, the terminal device may determine a transport block to be transmitted as the target transport block.

It should be understood that in the embodiment of the present application, a transport block is a transport unit at the time of initial transmission, and other terms may also be used, for example, a transport data group, a data group.

It should also be understood that, in this embodiment of the present application, the downlink control signaling scheduling target transport block may schedule all data in the transport block, that is, the entire transport block needs to be transmitted between the terminal device and the network device, and the downlink control signaling scheduling target transport block may schedule part of data in the transport block, that is, the part of data of the transport block needs to be transmitted between the terminal device and the network device.

Fig. 3 is a schematic flow chart diagram of a wireless communication method 300 according to an embodiment of the application. As shown in fig. 3, the method 300 includes the following.

In 310, the network device generates a downlink control signaling;

when the target transport block scheduled by the downlink control signaling is primarily transmitted, the second information field is used for indicating a modulation and coding level, and the modulation and coding level is used for transmitting the target transport block between the terminal device and the network device;

when the target transport block scheduled by the downlink control signaling is a repeat transport, the second information field is used to indicate the coding block or the coding block group to be retransmitted in the target transport block.

Optionally, the second information field includes N bits, and when the target transport block scheduled by the downlink control signaling is a repeated transport, M bits of the N bits are used to indicate the coding block or the coding block group to be retransmitted, where N is a positive integer, and M is a positive integer not greater than N.

Optionally, M is smaller than N, and when the target transport block scheduled by the downlink control signaling is retransmission, other bits, except for the M bits, of the N bits included in the second information field indicate a modulation scheme used for the coding block or the coding block group to be retransmitted.

Optionally, when the target transport block is a repeat transport, the target transport block includes M coding blocks or coding block groups, and the M bits indicate whether each of the M coding blocks or coding block groups needs to be retransmitted or not in a bit mapping manner.

Optionally, when the target transport block is retransmission yes, the M bits indicate 2^MSeed plaiting articleAnd one coding block set in the code block set, wherein the coding block or the coding block group to be retransmitted comprises the coding block or the coding block group included in the one coding block set.

Optionally, when the target transport block scheduled by the downlink control signaling is an initial transmission, all fields in the second information field are used for indicating the first modulation and coding level.

Optionally, the first information field is used to indicate a current transmission number of a target transport block scheduled by the downlink control signaling.

Optionally, a value of the first information field is 0 or 1; wherein, 0 is used for indicating the target transmission block as primary transmission, and 1 is used for indicating the target transmission block as repeat transmission; or, 1 is used to indicate the target transport block is the initial transmission, and 0 is used to indicate the target transport block is the repeated transmission.

Optionally, the first information field comprises a first field and a second field;

the first field is used for indicating whether the data scheduled by the downlink control signaling is new data compared with the data scheduled last time adjacent in the time domain, and the second field is used for indicating the result of the current transmission times of the data scheduled by the downlink control signaling modulo n. N is optionally 2.

Optionally, the downlink control signaling includes a third information field, where when the target transport block scheduled by the downlink control signaling is a repeat transport, the third information field is used to indicate a resource location and/or size when the coding block or the coding block group is transported.

Optionally, the network device receives a feedback message sent by the terminal device, where the feedback message is used to indicate the coding blocks or coding block groups that are successfully decoded and/or the coding blocks or coding block groups that are not successfully decoded in the target transmission block, and according to the feedback message, the network device determines the coding blocks or coding block groups that need to be retransmitted in the target transmission block.

In 320, the network device sends the downlink control signaling to the terminal device.

Fig. 4 is a schematic block diagram of a terminal device 400 according to an embodiment of the present application. As shown in fig. 4, the terminal device 400 includes a transceiving unit 410 and a processing unit 420.

The transceiver unit 410 is configured to: receiving a downlink control signaling sent by a network device, wherein the downlink control signaling comprises a first information domain and a second information domain;

the processing unit 420 is configured to: determining whether a target transmission block scheduled by the downlink control signaling is primarily transmitted or repeatedly transmitted according to the first information field; when the target transmission block scheduled by the downlink control signaling is transmitted for the first time, determining a modulation coding level according to the second information field;

the transceiving unit 410 is further configured to: when a target transmission block scheduled by the downlink control signaling is transmitted for the first time, the modulation coding grade is used for transmitting the target transmission block with the network equipment;

the processing unit 420 is further configured to: when the target transmission block scheduled by the downlink control signaling is transmitted repeatedly, determining a coding block or a coding block group to be retransmitted in the target transmission block according to the second information field;

the transceiving unit 410 is further configured to: and when the target transmission block scheduled by the downlink control signaling is transmitted repeatedly, the coding block or the coding block group is transmitted with the network equipment.

Optionally, the second information field includes N bits, and when the target transport block scheduled by the downlink control signaling is repeatedly transmitted, M bits of the N bits are used to indicate the coding block or the coding block group to be retransmitted, where N is a positive integer, and M is a positive integer no greater than N;

the processing unit 420 is further configured to: and determining the coding block or the coding block group to be retransmitted according to the M bits.

Optionally, M is less than N;

the processing unit 420 is further configured to:

determining a modulation mode of the coding block or the coding block group to be retransmitted according to other bits except the M bits in the N bits included in the second information domain;

the transceiving unit 410 is further configured to: and transmitting the coding block or the coding block group with the network equipment by using the modulation mode.

Optionally, the target transport block includes M coding blocks or coding block groups, and when the target transport block scheduled by the downlink control signaling is repeatedly transmitted, the M bits indicate, in a bit mapping manner, whether each coding block or coding block group in the M coding blocks or coding block groups is retransmitted or not.

Optionally, when the target transport block scheduled by the downlink control signaling is repeatedly transmitted, the M bits indicate 2^MAnd the coding block or the coding block group to be retransmitted is the coding block or the coding block group included in the coding block set.

Optionally, all fields in the second information field are used for indicating the modulation and coding level when the target transport block scheduled by the downlink control signaling is transmitted for the first time.

Optionally, the first information field is configured to indicate a current transmission number of the target transport block scheduled by the downlink control signaling;

the processing unit 420 is further configured to:

and determining whether the target transmission block scheduled by the downlink control signaling is transmitted for the first time or transmitted repeatedly according to the current transmission times indicated by the first information field.

Optionally, a value of the first information field is 0 or 1; wherein, 0 is used for indicating the target transmission block is primary transmission, and 1 is used for indicating the target transmission block is repeated transmission; or, 1 is used for indicating the target transmission block as primary transmission, and 0 is used for indicating the target transmission block as repeat transmission;

the processing unit 420 is further configured to:

and determining whether the target transmission block scheduled by the downlink control signaling is primarily transmitted or repeatedly transmitted according to the value of the first information field.

Optionally, the first information field includes a first field and a second field;

the processing unit 420 is further configured to:

and determining whether the target transport block scheduled by the downlink control signaling is initially transmitted or repeatedly transmitted by combining the first field and the second field.

Optionally, the n-2.

Optionally, the downlink control signaling includes a third information field, and when the target transport block scheduled by the downlink control signaling is repeatedly transmitted, the processing unit 420 is further configured to:

determining the resource position and/or size for transmitting the coding block or the coding block group to be retransmitted according to the third information domain;

the transceiver unit 410 is further configured to include:

Optionally, the target transport block scheduled by the downlink control signaling is a repeated transmission, the target transport block scheduled by the downlink control signaling is downlink data, and the transceiver unit is further configured to: and before receiving a downlink control signaling sent by a network device, sending a feedback message to the network device, where the feedback message is used to indicate a coding block or a coding block group that is successfully decoded in the target transmission block, and/or is used to indicate a coding block or a coding block group that is not successfully decoded.

It should be understood that the terminal device 400 may correspond to the terminal device in the method 200, and corresponding functions implemented by the terminal device in the method 200 may be implemented, which are not described herein again for brevity.

Fig. 5 is a schematic block diagram of a network device 500 according to an embodiment of the present application. As shown in fig. 5, the network device 500 includes a transceiving unit 510 and a processing unit 520; wherein the content of the first and second substances,

the processing unit 510 is configured to: generating a downlink control signaling;

the transceiver unit 520 is configured to: and sending the downlink control signaling to the terminal equipment.

Optionally, the second information field includes N bits, and when the target transport block scheduled by the downlink control signaling is a repeat transport, M bits of the N bits are used to indicate the coding block or the coding block group to be retransmitted, where N is a positive integer, and M is a positive integer not greater than N.

Optionally, M is smaller than N, and when the target transport block scheduled by the downlink control signaling is a repeated transmission, other bits, except for the M bits, of the N bits included in the second information field indicate a modulation scheme used for the coding block or the coding block group to be retransmitted.

Optionally, the target transport block includes M coding blocks or coding block groups, and when the target transport block scheduled by the downlink control signaling is a repeat transport, the M bits indicate, in a bit mapping manner, whether each coding block or coding block group in the M coding blocks or coding block groups needs to be retransmitted or not.

Optionally, when the target transport block scheduled by the downlink control signaling is a repeated transmission, the M bits indicate 2^MAnd one of the coding block sets, wherein the coding block or the coding block group to be retransmitted comprises the coding block or the coding block group included in the coding block set.

Optionally, the first information field is configured to indicate a current transmission number of the target transport block scheduled by the downlink control signaling.

Optionally, a value of the first information field is 0 or 1; wherein, 0 is used for indicating the target transmission block is primary transmission, and 1 is used for indicating the target transmission block is repeated transmission; or, 1 is used for indicating the target transmission block as primary transmission, and 0 is used for indicating the target transmission block as repeat transmission.

Optionally, the n-2.

Optionally, the downlink control signaling includes a third information field, and when the target transport block scheduled by the downlink control signaling is a repeat transport, the third information field is used to indicate a resource location and/or size when the coding block or the coding block group is transported.

Optionally, the data scheduled by the downlink control signaling is downlink data, the target transport block is repeatedly transmitted, and the transceiver unit is further configured to: receiving a feedback message sent by the terminal device, where the feedback message is used to indicate a coding block or a coding block group that is successfully decoded and/or a coding block group that is not successfully decoded in the target transmission block;

the processing unit 510 is further configured to: and determining a coding block to be retransmitted in the target transmission block according to the feedback message so as to generate the downlink control signaling.

It should be understood that the network device 500 may correspond to the network device in the method 300, and corresponding functions implemented by the network device in the method 300 may be implemented, which are not described herein again for brevity.

Fig. 6 is a schematic block diagram of a communication device 600 according to an embodiment of the present application. As shown in fig. 6, the communication device 600 includes a processor 610 and a memory 620. The memory 620 may store program codes, and the processor 610 may execute the program codes stored in the memory 620.

Alternatively, as shown in fig. 6, the communication device 600 may include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate externally.

Optionally, the processor 610 may call the program code stored in the memory 620 to perform corresponding operations of the terminal device in the method 200 shown in fig. 2, which is not described herein again for brevity.

Optionally, the processor 610 may call the program code stored in the memory 620 to perform corresponding operations of the network device in the method 300 shown in fig. 2, which is not described herein again for brevity.

Fig. 7 is a schematic structural diagram of a system chip 700 according to an embodiment of the present application. The system chip 700 of fig. 7 includes an input interface 701, an output interface 702, the processor 703 and a memory 704, which are connected through a communication connection, and the processor 703 is configured to execute codes in the memory 704.

Optionally, when the code is executed, the processor 703 implements the method performed by the terminal device in the method 200 shown in fig. 2. For brevity, no further description is provided herein.

Optionally, when the code is executed, the processor 703 implements the method performed by the network device in the method 300 shown in fig. 3. For brevity, no further description is provided herein.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of wireless communication, comprising:

the terminal equipment receives a downlink control signaling sent by the network equipment, wherein the downlink control signaling comprises a first information domain and a second information domain; the first information field comprises a first field and a second field, the first field is used for indicating whether a target transmission block scheduled by the downlink control signaling is new data or not compared with data scheduled by a last time adjacent in a time domain, the second field is used for indicating a result obtained by modulo n by the current transmission times of the data scheduled by the downlink control signaling, and n is a positive integer;

the terminal device determines whether the target transport block scheduled by the downlink control signaling is primarily transmitted or repeatedly transmitted by combining the first field and the second field; when a target transmission block scheduled by the downlink control signaling is transmitted for the first time, the terminal equipment determines a modulation and coding level according to the second information field, and the terminal equipment uses the modulation and coding level to transmit the target transmission block with the network equipment;

2. The method of claim 1, wherein the second information field comprises N bits, and when the target transport block scheduled by the downlink control signaling is repeatedly transmitted, M bits of the N bits are used for indicating the coding block or the coding block group to be retransmitted, where N is a positive integer and M is a positive integer not greater than N;

3. The method of claim 2, wherein M is less than N;

4. The method according to claim 2 or 3, wherein the target transport block comprises M coding blocks or coding block groups, and when the target transport block scheduled by the downlink control signaling is repeatedly transmitted, the M bits indicate whether each of the M coding blocks or coding block groups is retransmitted or not by means of bit mapping.

5. The method according to claim 2 or 3, wherein when the target transport block scheduled by the downlink control signaling is repeatedly transmitted, the M bits indicate one of 2M kinds of coding block sets, and the coding block or the coding block group to be retransmitted is the coding block or the coding block group included in the one kind of coding block set.

6. The method according to any of claims 1 to 3, wherein all fields in the second information field are used for indicating the modulation and coding level at the time of initial transmission of the target transport block scheduled by the downlink control signaling.

7. The method of claim 1, wherein n-2.

8. The method according to any of claims 1 to 3, wherein the downlink control signaling comprises a third information field, and when the target transport block scheduled by the downlink control signaling is repeatedly transmitted, the method further comprises:

9. The method according to any one of claims 1 to 3, wherein the target transport block scheduled by the downlink control signaling is a duplicate transmission, the target transport block scheduled by the downlink control signaling is downlink data, and before the terminal device receives the downlink control signaling sent by a network device, the method further comprises:

10. A method of wireless communication, comprising:

the network equipment generates a downlink control signaling;

the downlink control signaling comprises a first information field and a second information field, wherein the first information field is used for indicating whether a target transmission block scheduled by the downlink control signaling is primarily transmitted or repeatedly transmitted, the first information field comprises a first field and a second field, the first field is used for indicating whether data scheduled by the downlink control signaling is new data compared with data scheduled by a last time adjacent in a time domain, the second field is used for indicating a result obtained by performing modulo n on the number of times of current transmission of the data scheduled by the downlink control signaling, and the first field and the second field are used for a terminal device to determine whether the target transmission block scheduled by the downlink control signaling is primarily transmitted or repeatedly transmitted, wherein n is a positive integer;

11. The method of claim 10, wherein the second information field comprises N bits, and when the target transport block scheduled by the downlink control signaling is a repeated transmission, M bits of the N bits are used to indicate the coding block or the coding block group to be retransmitted, where N is a positive integer and M is a positive integer not greater than N.

12. The method according to claim 11, wherein M is smaller than N, and when the target transport block scheduled by the downlink control signaling is a repeated transmission, other bits than the M bits in the N bits included in the second information field indicate a modulation scheme used for the coding block or the coding block group to be retransmitted.

13. The method according to claim 11 or 12, wherein the target transport block comprises M coding blocks or coding block groups, and when the target transport block scheduled by the downlink control signaling is a repeated transmission, the M bits indicate whether each of the M coding blocks or coding block groups needs to be retransmitted or not by means of bit mapping.

14. The method according to claim 11 or 12, wherein when the target transport block scheduled by the downlink control signaling is a repeated transmission, the M bits indicate one of 2M kinds of coding block sets, and the coding block or the coding block group to be retransmitted comprises the coding block or the coding block group comprised by the one kind of coding block set.

15. The method according to any of claims 10 to 12, wherein all fields in the second information field are used for indicating the modulation coding level when the target transport block of the downlink control signaling scheduling is an initial transmission.

16. The method of claim 10, wherein n-2.

17. The method according to any of claims 10 to 12, wherein the downlink control signaling comprises a third information field, and when the target transport block scheduled by the downlink control signaling is a repeated transmission, the third information field is used to indicate a resource location and/or size when the coding block or coding block group transmission is performed.

18. The method according to any of claims 10 to 12, wherein the data scheduled by the downlink control signaling is downlink data, and the target transport block is a repeated transmission, the method further comprising:

19. A terminal device is characterized by comprising a transceiving unit and a processing unit;

the transceiver unit is configured to: receiving a downlink control signaling sent by a network device, wherein the downlink control signaling comprises a first information domain and a second information domain; the first information field comprises a first field and a second field, the first field is used for indicating whether a target transmission block scheduled by the downlink control signaling is new data or not compared with data scheduled by a last time adjacent in a time domain, the second field is used for indicating a result obtained by modulo n by the current transmission times of the data scheduled by the downlink control signaling, and n is a positive integer;

the processing unit is configured to: determining whether the target transport block scheduled by the downlink control signaling is primarily transmitted or repeatedly transmitted by combining the first field and the second field; when the target transmission block scheduled by the downlink control signaling is transmitted for the first time, determining a modulation coding level according to the second information field;

the transceiver unit is further configured to: when a target transmission block scheduled by the downlink control signaling is transmitted for the first time, the modulation coding grade is used for transmitting the target transmission block with the network equipment;

the processing unit is further to: when the target transmission block scheduled by the downlink control signaling is transmitted repeatedly, determining a coding block or a coding block group to be retransmitted in the target transmission block according to the second information field;

the transceiver unit is further configured to: and when the target transmission block scheduled by the downlink control signaling is transmitted repeatedly, the coding block or the coding block group is transmitted with the network equipment.

20. The terminal device of claim 19, wherein the second information field comprises N bits, and when the target transport block scheduled by the downlink control signaling is repeatedly transmitted, M bits of the N bits are used to indicate the coding block or the coding block group to be retransmitted, where N is a positive integer and M is a positive integer no greater than N;

the processing unit is further to: and determining the coding block or the coding block group to be retransmitted according to the M bits.

21. The terminal device of claim 20, wherein M is less than N;

the processing unit is further to:

the transceiver unit is further configured to: and transmitting the coding block or the coding block group with the network equipment by using the modulation mode.

22. The terminal device according to claim 19 or 20, wherein the target transport block comprises M coding blocks or coding block groups, and when the target transport block scheduled by the downlink control signaling is repeatedly transmitted, the M bits indicate whether each of the M coding blocks or coding block groups is retransmitted or not by means of bit mapping.

23. The terminal device according to claim 19 or 20, wherein when the target transport block scheduled by the downlink control signaling is repeatedly transmitted, the M bits indicate one of 2M kinds of coding block sets, and the coding block or coding block group to be retransmitted is a coding block or coding block group included in the one kind of coding block set.

24. The terminal device according to any of claims 19 to 21, wherein all fields in the second information field are used to indicate the modulation and coding level when the target transport block scheduled by the downlink control signaling is transmitted for the first time.

25. The terminal device of claim 19, wherein n-2.

26. The terminal device according to any of claims 19 to 21, wherein the downlink control signaling comprises a third information field, and when the target transport block scheduled by the downlink control signaling is repeatedly transmitted, the processing unit is further configured to:

the transceiver unit is further configured to include:

27. The terminal device according to any of claims 19 to 21, wherein the target transport block scheduled by the downlink control signaling is a duplicate transmission, the target transport block scheduled by the downlink control signaling is downlink data, and the transceiver unit is further configured to: and before receiving a downlink control signaling sent by a network device, sending a feedback message to the network device, where the feedback message is used to indicate a coding block or a coding block group that is successfully decoded in the target transmission block, and/or is used to indicate a coding block or a coding block group that is not successfully decoded.

28. A network device comprising a processing unit and a transceiver unit; wherein the content of the first and second substances,

the processing unit is configured to: generating a downlink control signaling;

the transceiver unit is configured to: and sending the downlink control signaling to the terminal equipment.

29. The network device of claim 28, wherein the second information field comprises N bits, and when the target transport block scheduled by the downlink control signaling is a repeated transmission, M bits of the N bits are used to indicate the coding block or the coding block group to be retransmitted, where N is a positive integer and M is a positive integer not greater than N.

30. The network device according to claim 29, wherein M is smaller than N, and when a target transport block scheduled by the downlink control signaling is a repeated transmission, other bits than the M bits in the N bits included in the second information field indicate a modulation scheme used for the coding block or the coding block group to be retransmitted.

31. The network device according to claim 29 or 30, wherein the target transport block comprises M coding blocks or coding block groups, and when the target transport block scheduled by the downlink control signaling is a repeated transmission, the M bits indicate whether each of the M coding blocks or coding block groups needs to be retransmitted or not by means of bit mapping.

32. The network device according to claim 29 or 30, wherein when the target transport block of the downlink control signaling scheduling is a repeated transmission, the M bits indicate one of 2M kinds of coding block sets, and the coding block or coding block group to be retransmitted comprises the coding block or coding block group comprised by the one kind of coding block set.

33. The network device according to claim 29 or 30, wherein all fields in the second information field are used for indicating the modulation and coding level when the target transport block scheduled by the downlink control signaling is an initial transmission.

34. The network device of claim 29, wherein n-2.

35. The network device according to claim 29 or 30, wherein the downlink control signaling comprises a third information field, and when the target transport block scheduled by the downlink control signaling is a repeated transport, the third information field is used to indicate a resource location and/or size when the coded block or the coded block group is transmitted.

36. The network device according to claim 29 or 30, wherein the data scheduled by the downlink control signaling is downlink data, the target transport block is a repeated transmission, and the transceiver unit is further configured to: receiving a feedback message sent by the terminal device, where the feedback message is used to indicate a coding block or a coding block group that is successfully decoded and/or a coding block group that is not successfully decoded in the target transmission block;

the processing unit is further to: and determining a coding block to be retransmitted in the target transmission block according to the feedback message so as to generate the downlink control signaling.

37. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which is executed by a processor to implement the wireless communication method according to any one of claims 1 to 9.

38. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which is executed by a processor to implement the wireless communication method according to any one of claims 10 to 18.