CN114503756A

CN114503756A - Communication method and device

Info

Publication number: CN114503756A
Application number: CN201980100787.XA
Authority: CN
Inventors: 张铭; 毕文平; 余政
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-10-02
Filing date: 2019-10-02
Publication date: 2022-05-13
Also published as: WO2021062870A1

Abstract

The embodiment of the application relates to a communication method and a communication device, wherein the method comprises the following steps: sending first information to the terminal equipment, wherein the first information indicates the maximum number of transmission blocks which can be scheduled by the downlink control information; indicating HARQ process numbers corresponding to one or more transmission blocks scheduled by downlink control information to terminal equipment in the value range of the HARQ process numbers; when indicating HARQ process numbers corresponding to one or more TBs scheduled by downlink control information to a terminal device, in one embodiment, the HARQ process number corresponding to each scheduled TB is determined by using the HARQ process number corresponding to one transport block and the number of transport blocks actually scheduled by the downlink control information, so that bit overhead of the downlink control information can be reduced, and meanwhile, the value of the HARQ process number corresponding to the transport block is not fixed, thereby ensuring the scheduling flexibility of multiple transport blocks.

Description

Communication method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a communication method and apparatus.

Background

In a wireless communication system, a Downlink Control Information (DCI) is used to schedule a Transport Block (TB) or to schedule a transport block carried by a data channel. In the scheduling process, on one hand, the downlink control information needs to indicate a hybrid automatic retransmission request (HARQ) process number corresponding to a scheduled transport block, and on the other hand, the downlink control information also needs to indicate whether the scheduled transport block is used for new transmission or retransmission. In order to improve transmission efficiency, one piece of downlink control information may be used to schedule a plurality of transport blocks carried by a plurality of data channels, or one piece of downlink control information may be used to schedule one data channel, but the data channel may carry a plurality of transport blocks. At present, only one transport block is scheduled, the implementation of the HARQ process number of the transport block is indicated, and when one piece of downlink control information schedules a plurality of transport blocks, how to indicate the HARQ process numbers corresponding to the plurality of transport blocks has no corresponding solution.

Disclosure of Invention

The embodiment of the application provides a communication method and device, which are used for reducing bit overhead of downlink control information while ensuring the flexibility of selection of HARQ process numbers corresponding to transmission blocks.

In a first aspect, a first communication method is provided that is executable by a first communication device, such as a network device, e.g., a base station. The method comprises the following steps: sending first information to terminal equipment, wherein the first information indicates the maximum number L of transmission blocks which can be scheduled by downlink control information, and the L is a positive integer; indicating HARQ process numbers corresponding to one or more transmission blocks scheduled by downlink control information to the terminal equipment within the value range of the HARQ process numbers;

wherein, the L is 2, the value range of the HARQ process number is [0,3], the downlink control information includes a first field, the first field indicates an HARQ process number corresponding to each of the one or two transport blocks, and when the first field indicates HARQ process numbers corresponding to two transport blocks, the HARQ process numbers corresponding to the two transport blocks may be discontinuous, and the downlink control information further indicates a New Data Indicator (NDI) of each transport block in a bit mapping manner; and/or the presence of a gas in the gas,

the L is 4, the value range of the HARQ process number is [0,7], the downlink control information schedules M transport blocks, where M is a positive integer and M is greater than or equal to 1 and less than or equal to 4, the downlink control information indicates the HARQ process number corresponding to the first transport block in the M transport blocks, the M HARQ process numbers corresponding to the M transport blocks are consecutive, the downlink control information includes a second field with 5 consecutive bits, M consecutive bits in the second field indicate the NDI of the M transport blocks in a bit mapping manner, bit states of (4-M) bits in the remaining (5-M) bits in the second field are all 0 and bit states of one bit other than the (4-M) bits are 1; and/or the presence of a gas in the gas,

the L is 8, the value range of the HARQ process number is [0,7], the downlink control information includes 10 bits, M consecutive bits of the 10 bits indicate the NDI of the M transport blocks in a bit mapping manner, one bit of (9-M) consecutive bits of the 10 bits except the M bits has a state of 1 and the other (8-M) bits have states of 0, one bit of the 10 bits except the M consecutive bits except the M bits has a state of 1, where M is a positive integer and M is greater than or equal to 1 and less than or equal to 8; and/or the presence of a gas in the gas,

the L is 4, the value range of the HARQ process number is [0,3], the downlink control information includes 6 bits, M consecutive bits of the 6 bits indicate the NDI of the M transport blocks in a bit mapping manner, one bit of (5-M) consecutive bits of the 6 bits except the M bits has a state of 1 and the other (4-M) bits have states of 0, one bit of the 6 bits except the M consecutive bits and the (5-M) consecutive bits has a state of 1, where M is a positive integer and M is greater than or equal to 1 and less than or equal to 4.

In a possible design, the maximum number L of transport blocks that can be scheduled by the downlink control information is predetermined, that is, the HARQ process number corresponding to one or more transport blocks scheduled by the downlink control information can be directly indicated to the terminal device within the value range of the HARQ process number without sending the first information to the terminal device, thereby reducing the overhead of data transmission.

In the embodiment of the application, in the value range of the HARQ process number, according to the maximum number of transport blocks that can be scheduled by the downlink control information and the value range of the HARQ process number, various selectable design modes are provided for indicating, to the terminal device, the HARQ process number corresponding to one or more transport blocks scheduled by the downlink control information.

For example, when L is 2, and the value range of the HARQ process number is [0,3], the downlink control information includes an HARQ process number corresponding to each of one or two transport blocks, and when the first field indicates the HARQ process numbers corresponding to two transport blocks, the HARQ process numbers corresponding to the two transport blocks can be discontinuous, that is, the first field includes all optional HARQ process number combinations corresponding to the two transport blocks, in other words, the flexibility of the optional HARQ process number combinations is maximum, and the maximum number of transport blocks that can be scheduled by the downlink control information is 2, that is, the number of bits used to indicate the NDI of each transport block is at most 2, so that the bit overhead of the downlink control information is also small.

For example, when L is 4, the value range of the HARQ process number is [0,7], the downlink control information indicates the HARQ process number corresponding to the first transport block in the scheduled M transport blocks, and in addition, the downlink control information further includes 5 consecutive bits indicating the value of M and the NDI of the M transport blocks, since the number of transport blocks actually scheduled by the downlink control information is at most 4, and the value range of the HARQ process number is [0,7], which means that there are more selectable HARQ process number combinations corresponding to the M transport blocks, that is, it is necessary to occupy a large bit overhead in the downlink control information to indicate all the combinations of HARQ process numbers corresponding to the M transport blocks, in this embodiment, the value of M is indicated by indicating the HARQ process number corresponding to the first transport block, and using the bit with the bit state of 1 in the second field at the position of the second field, the indication of the M HARQ process numbers corresponding to the M transport blocks can be realized, the occupied bit overhead is small, and the HARQ process number corresponding to the first transport block is not fixed, for example, M is 2, and the value of the HARQ process number corresponding to the first transport block is any one of [0,6], which is equivalent to that, the flexibility of HARQ process number selection is ensured.

For example, when L is 8, and the value range of the HARQ process number is [0,7], similarly, the maximum value of M is 8, and if M HARQ process numbers corresponding to M transport blocks are indicated in the downlink control information, a large bit overhead needs to be occupied, in this embodiment, the downlink control information includes 10 bits, and the HARQ process number corresponding to the first transport block and the value of M are indicated by (10-M) consecutive bits of the 10 bits except for M consecutive bits, which is equivalent to that only (10-M) bits are needed in the downlink control information to achieve the indication of M HARQ process numbers corresponding to M transport blocks, thereby reducing the bit overhead of the downlink control information, and a bit in the state of 1 may be any one of (9-M) consecutive bits, that is, the value of the HARQ process number corresponding to the first transport block is flexible, thereby ensuring the flexibility of HARQ process number selection.

For example, when L is 4, and the value range of the HARQ process number is [0,3], similarly, the maximum value of M is 4, and if M HARQ process numbers corresponding to M transport blocks are indicated in the downlink control information, a large bit overhead needs to be occupied, in this embodiment, the downlink control information includes 6 bits, and the HARQ process number corresponding to the first transport block and the value of M are indicated by (6-M) consecutive bits except the M consecutive bits in the 6 bits, so that the indication of the M HARQ process numbers corresponding to all M transport blocks is realized, the bit overhead is small, and a bit in the state of 1 may be any one of (5-M) consecutive bits, that is, the value of the HARQ process number corresponding to the first transport block is flexible, and the flexibility of selecting the HARQ process number is ensured.

With reference to the first aspect, in a possible design of the first aspect, where L is 2, a value range of the HARQ process number is [0,3], the first field indicates, using 3 consecutive bits, an HARQ process number corresponding to each of the one or two transport blocks, where 6 states of the 3 consecutive bits are used to indicate an HARQ process number corresponding to each of the two transport blocks when the downlink control information schedules the two transport blocks, and the downlink control information indicates, using 2 consecutive bits, an NDI of each of the two transport blocks; and/or the presence of a gas in the gas,

and when the remaining 2 states of the 3 continuous bits except the 6 states are used for indicating that the downlink control information schedules the transport block, the HARQ process number corresponding to the transport block, and one bit in the downlink control information indicates the NDI of the transport block.

That is, when L ═ 2, the value range of the HARQ process number is [0,3], the first field includes 3 consecutive bits, the 3 consecutive bits correspond to 8 states, and by using the 8 states to indicate two HARQ process numbers corresponding to two transport blocks when the two transport blocks are scheduled, and a HARQ process number corresponding to one transport block when the one transport block is scheduled, so that all cases of indicating the corresponding HARQ process numbers in one or more transport blocks in the downlink control information can be achieved, that means, the flexibility of the selection of the HARQ process number is high, and the downlink control information can schedule 2 transport blocks at most, that is, the bit overhead for indicating the NDI of the transport block is at most 2, so that the downlink control information can indicate the HARQ process number corresponding to each transport block and the NDI of each transport block by using at most 5 bits, and the bit overhead is small.

With reference to the first aspect, in a possible design of the first aspect, L is 4, a value range of the HARQ process number is [0,7], the HARQ process number corresponding to the first transport block is indicated by using 3 consecutive bits in the downlink control information, a state of an ith bit from a first high-order bit to a low-order bit in the second field is 1, where the i is (5-M), states of first (4-M) bits of the ith bit are all 0, and M consecutive bits after the ith bit indicate NDI of the M transport blocks in a bit mapping manner.

That is, when L is 4 and the value range of the HARQ process number is [0,7], 3 consecutive bits in the downlink control information are used to indicate the HARQ process number corresponding to the first transport block, 3 consecutive bits correspond to 8 states, any one HARQ process number in [0,7] can be indicated, meaning that the HARQ process number corresponding to the first transport block is flexibly selectable, then, using the second field, indicating the value of the position of the bit with the state of 1 from the first high-order bit to the first low-order bit in the second field to the position of M, which is equivalent to using less bits to implicitly indicate the HARQ process number corresponding to each transport block to be scheduled, and since the HARQ process number corresponding to the first transport block is not fixed, the M HARQ process numbers corresponding to the M transport blocks are not fixed, therefore, the flexibility of selecting the HARQ process number is ensured, and the bit overhead of the downlink control information is reduced.

With reference to the first aspect, in a possible design of the first aspect, the L is 8, the HARQ process number has a value range of [0,7], a jth bit from a first higher bit to a lower bit among the (9-M) consecutive bits is used to indicate a HARQ process number (j-1) corresponding to the first transport block, a state of the jth bit is 1, states of the other (8-M) bits are all 0, an ith bit from the first higher bit to the lower bit among the 10 bits is used to indicate a value of the M, the state of the ith bit is 1, and M consecutive bits after the ith bit indicate NDI of the M transport blocks in a bit mapping manner.

That is, when L ═ 8 and the value range of the HARQ process numbers is [0,7], using (9-M) consecutive bits, the jth bit from the first high bit to the low bit indicates the HARQ process number (j-1) corresponding to the first transport block, i.e. using the position of the bit with state 1 in (9-M) consecutive bits to indicate the HARQ process number corresponding to the first transport block, obviously, the position of the jth bit is not fixed, i.e. the HARQ process number corresponding to the first transport block is not fixed, and then using one bit before M consecutive bits to indicate the value of M, i.e. using only (10-M) bits to indicate the M HARQ process numbers corresponding to M transport blocks, which is equivalent to implicitly indicating the HARQ process number corresponding to each transport block scheduled using fewer bits, and since the HARQ process number corresponding to the first transport block is not fixed, therefore, M HARQ process numbers corresponding to the M transmission blocks are not fixed, so that the selection flexibility of the HARQ process numbers is ensured, and the bit overhead of downlink control information is reduced.

With reference to the first aspect, in a possible design of the first aspect, L is 4, the HARQ value range is [0,3], a jth bit from a first high-order bit to a low-order bit in the (5-M) consecutive bits is used to indicate a HARQ process number (j-1) corresponding to the first transport block, a state of the jth bit is 1, states of the other (4-M) bits are all 0, an ith bit from the first high-order bit to the low-order bit in the 6 bits is used to indicate a value of M, a state of the ith bit is 1, and M consecutive bits after the ith bit indicate NDI of the M transport blocks in a bit mapping manner.

That is, when L is 4 and the value range of the HARQ process number is [0,3], using (5-M) consecutive bits, the jth bit from the first higher bit to the lower bit to indicate the HARQ process number (j-1) corresponding to the first transport block, i.e. using the position of the bit with the state of 1 in (5-M) consecutive bits to indicate the HARQ process number corresponding to the first transport block, it is obvious that the position of the jth bit is not fixed, i.e. the HARQ process number corresponding to the first transport block is not fixed, and then using a bit before M consecutive bits to indicate the value of M, i.e. using only (10-M) bits to indicate the M HARQ process numbers corresponding to the M transport blocks, which is equivalent to using fewer bits to implicitly indicate the HARQ process number corresponding to each transport block scheduled, and since the HARQ process number corresponding to the first transport block is not fixed, therefore, M HARQ process numbers corresponding to the M transmission blocks are not fixed, so that the selection flexibility of the HARQ process numbers is ensured, and the bit overhead of downlink control information is reduced.

In a second aspect, a second communication method is provided, which is executable by a second communication device, such as a terminal equipment. The method comprises the following steps: receiving first information from a network device, wherein the first information indicates the maximum number L of transmission blocks which can be scheduled by downlink control information, and L is a positive integer; determining HARQ process numbers corresponding to one or more transmission blocks scheduled by the downlink control information in a value range of the HARQ process numbers;

wherein, the L is 2, the value range of the HARQ process number is [0,3], the downlink control information includes a first field, the first field is used to determine the HARQ process number corresponding to each of the one or two transport blocks, and when the first field indicates the HARQ process numbers corresponding to two transport blocks, the HARQ process numbers corresponding to the two transport blocks may be discontinuous, and the downlink control information further indicates the NDI of each transport block in a bit mapping manner; and/or the presence of a gas in the atmosphere,

the L is 4, the value range of the HARQ process number is [0,7], the downlink control information schedules M transport blocks, where M is a positive integer and M is greater than or equal to 1 and less than or equal to 4, the downlink control information indicates the HARQ process number corresponding to the first transport block in the M transport blocks, the M HARQ process numbers corresponding to the M transport blocks are consecutive, the downlink control information includes a second field with 5 consecutive bits, M consecutive bits in the second field indicate NDI of the M transport blocks in a bit mapping manner, bit states of (4-M) bits in the remaining (5-M) bits in the second field are all 0, and bit states of one bit other than the (4-M) bits are 1; and/or the presence of a gas in the gas,

In a possible design, the maximum number L of transport blocks that can be scheduled by the downlink control information is predetermined, that is, the network device does not need to send the first information to the terminal device, and the terminal device can directly determine HARQ process numbers corresponding to one or more transport blocks scheduled by the downlink control information within the value range of the HARQ process numbers, thereby reducing the overhead of data transmission.

The technical effects brought by the second aspect or the design manner in the second aspect can be referred to the technical effects brought by the different design manners in the first aspect, and are not described herein again.

With reference to the second aspect, in a possible design of the second aspect, the determining, within a range of values of HARQ process numbers, HARQ process numbers corresponding to one or more transport blocks scheduled by the downlink control information includes:

when 3 consecutive bits of the first field in the downlink control information indicate one of 6 states, determining that the downlink control information schedules 2 transport blocks, an HARQ process number corresponding to each of two transport blocks indicated by the 3 consecutive bits, and an NDI of the 2 transport blocks indicated by the 2 consecutive bits; and/or the presence of a gas in the atmosphere,

the 3 consecutive bits indicate one of the remaining 2 states except the 6 states, and it is determined that the downlink control information schedules 1 transport block, an HARQ process number corresponding to one transport block indicated by the 3 consecutive bits, and an NDI of the one transport block indicated by a first bit from a first upper bit to a lower bit among the 2 consecutive bits.

That is, when L is 2 and the HARQ value range is [0,3], 3 consecutive bits of the first field correspond to 8 states, 6 states of the 8 states indicate all HARQ process number combinations corresponding to two transport blocks when the two transport blocks are scheduled, and the remaining 2 states except the 6 states indicate an HARQ process number corresponding to one transport block when the one transport block is scheduled, which means that the downlink control information may indicate any combination of the two HARQ process numbers or may indicate an HARQ process number corresponding to a single scheduled transport block, so that the terminal device may directly determine the HARQ process number corresponding to each transport block according to the states corresponding to the 3 consecutive bits, thereby reducing the workload of the terminal device, and the flexibility of selecting the HARQ process number is high.

the L is 4, the HARQ value range is [0,7], the HARQ process number corresponding to the first transport block indicated by 3 consecutive bits in the downlink control information, a bit in the second field, whose first bit state is 1 from a first upper bit to a lower bit, is an ith bit, the value of M is determined to be (5-i), HARQ process numbers corresponding to remaining (M-1) transport blocks except the first transport block in the M transport blocks, and NDIs of the M transport blocks indicated by the M consecutive bits.

That is, when L is 4 and the HARQ value range is [0,7], the terminal device determines the HARQ process number corresponding to the first transport block according to the corresponding states of 3 consecutive bits, and then determines the value of M according to the position of the second field in which the bit with the first bit state from the first high bit to the low bit being 1 in the second field, so as to determine the HARQ process number corresponding to each transport block in the M transport blocks, in other words, the terminal device can determine the M HARQ process numbers corresponding to the M transport blocks only according to the corresponding states of the 3 consecutive bits and the position of the bit with the first bit state from the first high bit to the low bit being 1 in the second field, which means that the HARQ process number corresponding to each transport block in the M transport blocks can be determined only by using (8-M) bits, obviously, the implementation mode is simple, the workload of the terminal device is less, the bit overhead is small, and the selection flexibility of the HARQ process number is also ensured because the HARQ process number corresponding to the first transport block is not fixed.

With reference to the second aspect, in a possible design of the second aspect, the L is 8, the HARQ value range is [0,7], a bit with a first bit state of 1 from a first higher bit to a lower bit of the (9-M) consecutive bits is a jth bit, a bit with a second bit state of 1 from a first higher bit to a lower bit of the 10 bits is an ith bit, a HARQ process number corresponding to the first transport block is determined to be (j-1), the value of M is (10-i), HARQ process numbers corresponding to remaining (M-1) transport blocks except the first transport block of the M transport blocks, and NDIs of the M transport blocks indicated by the M consecutive bits.

That is, when L is 8 and the HARQ value range is [0,7], since the position of the bit with the first bit state of 1 from the first higher bit to the lower bit in (9-M) consecutive bits indicates the HARQ process number corresponding to the first transport block, and the position of the bit with the second state of 1 from the first higher bit to the lower bit in the 10 bits indicates the value of M in 10 bits, which means that the terminal device only needs to determine the positions of two bits with the first bit state of 1 from the first higher bit to the lower bit and the second bit state of 1 in the 10 bits, to determine the HARQ process number corresponding to the first transport block and the value of M, and thus can determine the HARQ process number corresponding to each of the M transport blocks, the implementation method is simple, the workload of the terminal device is less, and because the HARQ process number corresponding to the first transmission block is not fixed, and only (10-M) bits are needed to determine M HARQ process numbers corresponding to M transmission blocks, thereby ensuring the flexibility of HARQ process number selection and reducing the bit overhead of downlink control information.

the L is 4, the HARQ value range is [0,3], a bit with a first bit state from a first higher bit to a lower bit in the (5-M) consecutive bits being 1 is a jth bit, a bit with a second bit state from a first higher bit to a lower bit in the 6 bits being 1 is an ith bit, it is determined that the HARQ process number corresponding to the first transport block is (j-1), the value of M is (6-i), HARQ process numbers corresponding to remaining (M-1) transport blocks except the first transport block in the M transport blocks, and NDIs of the M transport blocks indicated by the M consecutive bits.

That is, when L is 4 and the HARQ value range is [0,3], since the position of the bit with the first state 1 from the first high-order bit to the low-order bit in the (5-M) consecutive bits indicates the HARQ process number corresponding to the first transport block, and the position of the bit with the second state 1 from the first high-order bit to the low-order bit in the 6 bits indicates the value of M, among the 6 bits, in the (5-M) consecutive bits, means that the terminal device only needs to determine the positions of two bits with the first state 1 from the first high-order bit to the low-order bit and the second state 1 in the 6 bits, to determine the HARQ process number corresponding to the first transport block and the value of M, and thus to determine the HARQ process number corresponding to each of the M transport blocks, the implementation method is simple, the workload of the terminal device is less, and because the HARQ process number corresponding to the first transmission block is not fixed, and only (6-M) bits are needed to determine M HARQ process numbers corresponding to M transmission blocks, thereby ensuring the flexibility of HARQ process number selection and reducing the bit overhead of downlink control information.

With reference to various possible designs of any one of the first aspect or the second aspect, in one possible design, the first information is carried by radio resource control signaling, or medium access control signaling, or physical layer signaling.

That is, the network device sends the first information to the terminal device through the radio resource control signaling, or the network device sends the first information to the terminal device through the media access control signaling, or the network device sends the first information through the physical layer signaling. In this way, the network device may select any one of the multiple signaling to indicate the maximum number of transport blocks that can be scheduled by the downlink control information to the terminal device, so that the terminal device knows the capability of the downlink control information to schedule the transport blocks.

In a third aspect, a first communication device is provided, for example, a network device. The communication device has the function of realizing the network equipment in the method design. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the communication device may include a processing module and a transceiver module. The processing module and the transceiver module may perform the corresponding functions in the method provided in the first aspect or any one of the possible implementations of the first aspect.

In a fourth aspect, a second communication device is provided, for example, a terminal device. The communication device has the function of realizing the terminal equipment in the method design. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the communication device may include a processing module and a transceiver module. The processing module and the transceiver module may perform the corresponding functions in the method provided by the second aspect or any one of the possible implementations of the second aspect.

In a fifth aspect, a third communication device is provided, for example, a network device. The communication device has the function of realizing the network equipment in the method design. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the communication device may include a processor and a transceiver. The processor and the transceiver may perform the respective functions in the method provided by the first aspect or any one of the possible implementations of the first aspect.

In a sixth aspect, a fourth communication device is provided, for example, a terminal device. The communication device has the function of realizing the terminal equipment in the method design. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the communication device may include a processor and a transceiver. The processor and the transceiver may perform the respective functions in the method provided by the second aspect or any one of the possible implementations of the second aspect.

In a seventh aspect, a fifth communication device is provided. The communication device may be a network device designed by the method or a chip arranged in the network device. The communication device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored by the memory comprises instructions that, when executed by the processor, cause the fifth communication device to perform the method of the first aspect or any one of the possible implementations of the first aspect.

In an eighth aspect, a sixth communications apparatus is provided. The communication device may be the terminal device designed in the above method, or a chip provided in the terminal device. The communication device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored by the memory comprises instructions which, when executed by the processor, cause the sixth communication device to perform the method of the second aspect or any one of the possible embodiments of the second aspect.

A ninth aspect provides a first communication system, which may comprise the first communication apparatus of the third aspect and the second communication apparatus of the fourth aspect.

A tenth aspect provides the second communication system, which may include the third communication apparatus according to the fifth aspect and the fourth communication apparatus according to the sixth aspect.

An eleventh aspect provides a third communication system, which may include the fifth communication device of the seventh aspect and the sixth communication device of the eighth aspect.

In a twelfth aspect, there is provided a computer storage medium having instructions stored thereon that, when executed on a computer, cause the computer to perform the method of the first aspect or any one of the possible designs of the first aspect.

In a thirteenth aspect, there is provided a computer storage medium having instructions stored thereon, which when run on a computer, cause the computer to perform the method as set forth in the second aspect or any one of the possible designs of the second aspect.

In a fourteenth aspect, there is provided a computer program product comprising instructions stored thereon, which when run on a computer, cause the computer to perform the method of the first aspect or any one of the possible designs of the first aspect.

In a fifteenth aspect, there is provided a computer program product comprising instructions stored thereon, which when run on a computer, cause the computer to perform the method of the second aspect described above or any one of the possible designs of the second aspect.

In the embodiment of the application, in the value range of the HARQ process number, the HARQ process number corresponding to one transport block scheduled by the downlink control information is indicated to the terminal device, so that the HARQ process numbers corresponding to the remaining transport blocks are determined by the HARQ process number corresponding to the one transport block and the value of M, which is equivalent to that, the downlink control information only needs to indicate the HARQ process number corresponding to the one transport block and the value of M to enable the terminal device to determine the M HARQ process numbers corresponding to the M transport blocks without indicating the M HARQ process numbers corresponding to the M transport blocks, thereby reducing the bit overhead of the downlink control information.

Drawings

Fig. 1 is a schematic diagram of scheduling multiple transport blocks by downlink control information according to an embodiment of the present application;

fig. 2 is a schematic view of an application scenario according to an embodiment of the present application;

fig. 3 is a flowchart of a communication method according to an embodiment of the present application;

fig. 4 is a schematic block diagram of a network device provided in an embodiment of the present application;

fig. 5 is another schematic block diagram of a network device provided in an embodiment of the present application;

fig. 6 is a schematic block diagram of a terminal device provided in an embodiment of the present application;

fig. 7 is another schematic block diagram of a terminal device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.

Hereinafter, some terms in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

1) Terminal equipment, including equipment providing voice and/or data connectivity to a user, in particular, including equipment providing voice to a user, or including equipment providing data connectivity to a user, or including equipment providing voice and data connectivity to a user. For example, may include a handheld device having wireless connection capability, or a processing device connected to a wireless modem. The terminal device may communicate with a core network via a Radio Access Network (RAN), exchange voice or data with the RAN, or interact with the RAN. The terminal device may include a User Equipment (UE), a wireless terminal device, a mobile terminal device, a device-to-device communication (D2D) terminal device, a vehicle-to-all (V2X) terminal device, a machine-to-machine/machine-type communication (M2M/MTC) terminal device, an internet of things (internet of things, IoT) terminal device, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile station), a remote station (remote station), an access point (access point, AP), a remote terminal (remote), an access terminal (access terminal), a user terminal (user terminal), a user agent (user), or a user equipment (user), etc. For example, mobile telephones (or so-called "cellular" telephones), computers with mobile terminal equipment, portable, pocket, hand-held, computer-included mobile devices, and the like may be included. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like. Also included are constrained devices, such as devices that consume less power, or devices that have limited storage capabilities, or devices that have limited computing capabilities, etc. Examples of information sensing devices include bar codes, Radio Frequency Identification (RFID), sensors, Global Positioning Systems (GPS), laser scanners, and the like.

By way of example and not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable equipment can also be called wearable smart device or intelligent wearable equipment etc. is the general term of using wearable technique to carry out intelligent design, develop the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. Wearable equipment is not only a hardware equipment, realizes powerful function through software ability and data interaction, high in the clouds interaction more. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets, smart helmets, smart jewelry and the like for monitoring physical signs.

The various terminal devices described above, if located on a vehicle (e.g., placed in or installed in the vehicle), may be considered to be vehicle-mounted terminal devices, which are also referred to as on-board units (OBUs), for example.

In the embodiment of the present application, the terminal device may also include a relay, for example, it may be understood that the terminal device can be regarded as a terminal device that can perform data communication with the base station.

2) Network devices, including, for example, Access Network (AN) devices, such as base stations (e.g., access points), may refer to devices in AN access network that communicate with wireless terminal devices over one or more cells over the air, or, for example, a network device in vehicle-to-all (V2X) technology is a Road Side Unit (RSU). The base station may be configured to interconvert received air frames and IP packets as a router between the terminal device and the rest of the access network, which may include an IP network. The RSU may be a fixed infrastructure entity capable of V2X applications, and may exchange messages with other entities capable of V2X applications. The network device may also coordinate attribute management for the air interface. For example, the network device may include an evolved Node B (NodeB or eNB or e-NodeB) in a Long Term Evolution (LTE) system or an advanced long term evolution (LTE-a), or may also include a next generation Node B (gNB) in a New Radio (NR) system (also referred to as an NR system) of a fifth generation mobile communication technology (5th generation, 5G), or may also include a Centralized Unit (CU) and a Distributed Unit (DU) in a Cloud access network (Cloud RAN) system, which is not limited in the embodiments of the present application.

In addition, the network device may also include a core network device. However, the embodiment of the present application does not relate to core network devices, and is mainly the interaction between the access network devices and the terminal devices. Therefore, the network device described in the embodiments of the present application may refer to an access network device.

3) The terms "system" and "network" in the embodiments of the present application may be used interchangeably. "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.

4) The transmission block used for new transmission means that the transmission block transmitted currently is transmitted for the first time; the transport block for retransmission means that the currently transmitted transport block is a duplicate transmission. For example, NDI may be used to indicate whether a transport block is for a new transmission or for retransmission, to indicate a corresponding transport block for a new transmission when NDI flips, and to indicate a corresponding transport block for retransmission when NDI does not flip.

5) The first transport block is a transport block corresponding to a minimum HARQ process number among a plurality of HARQ process numbers corresponding to a plurality of transport blocks scheduled by downlink control information. For example, 3 HARQ process numbers corresponding to 3 scheduled transport blocks are 0,2, and 5, respectively, and the first transport block refers to the transport block corresponding to the HARQ process number 0.

6) In this embodiment, the "L" refers to the number of the largest transmission blocks that can be scheduled by the downlink control information, and L is a positive integer. For example, L is 2,4,8, or the like. "Q" refers to the number of HARQ process numbers corresponding to the transport blocks that can be scheduled by the downlink control information, for example, the value range of the HARQ process numbers corresponding to the transport blocks that can be scheduled by the downlink control information is (0 to Q-1), and Q is a positive integer. For example, if Q is 4, it means that the value range of the HARQ process number corresponding to the transport block that can be scheduled by the downlink control information is [0,3 ]. "M" refers to the number of transport blocks actually scheduled by the downlink control information, and M is a positive integer. Obviously, M is less than or equal to L.

7) The "from the first upper bit to the lower bit" in the embodiment of the present application indicates an ordering manner of the plurality of bits. For a plurality of bits in the downlink control information, the high order bit to the low order bit refer to the plurality of bits sorted from small to large according to the number of the bits or the serial number of the bits, the first high order bit refers to the bit with the minimum number of the bits or the serial number in the plurality of bits, and the first low order bit refers to the bit with the maximum number of the bits or the serial number in the plurality of bits. For example, the sequence numbers corresponding to the 4 bits are 9,10,11, and 12, respectively, and for the 4 bits, the first upper bit is the bit with the sequence number of 9, and the first lower bit is the bit with the sequence number of 12.

And, unless stated to the contrary, the embodiments of the present application refer to the ordinal numbers "first", "second", etc., for distinguishing a plurality of objects, and do not limit the sequence, timing, priority, or importance of the plurality of objects. For example, the first value and the second value are merely used to distinguish different values, and do not indicate a difference in content, priority, importance, or the like between the two values.

It should be noted that, for convenience of description, the following description takes the downlink control information as DCI, but the downlink control information is not limited to only DCI.

It should be noted that, for convenience of description, the transport block is described as TB, but the transport block is not limited to be only TB.

The foregoing has described some of the noun concepts to which embodiments of the present application relate, and the following has described some features of the embodiments of the present application.

In a wireless communication system, in order to improve transmission efficiency, one DCI may be used to schedule multiple TBs carried by multiple data channels, or one DCI may schedule one data channel, which may carry multiple TBs. For example, referring to fig. 1, when 8 transport blocks are scheduled by one downlink control information, in fig. 1, one downlink control information schedules transport blocks 1,2 … …,7, and 8. Currently, only when one TB is scheduled, a HARQ process number is indicated and each TB is used for new transmission or retransmission, for example, whether a value of an NDI is inverted in DCI is used to indicate that each scheduled TB is used for new transmission or retransmission, and for example, two states of one bit are used in DCI to indicate that a scheduled TB is used for new transmission or retransmission, however, when one DCI schedules multiple TBs, how to indicate HARQ process numbers and NDIs corresponding to the multiple TBs does not have a corresponding solution.

If the method for indicating the HARQ process number and the NDI when scheduling one TB is referred to, in the scheduling process, the DCI needs to indicate the HARQ process number corresponding to each of the multiple TBs and the NDI of each of the multiple TBs. For example, 4 TBs are scheduled by using one DCI, and the value range of the HARQ process number is [0,7], then the DCI may indicate that any 4 process numbers (e.g., 0,3, 5, 6; e.g., 1,2,4, 7) correspond to the scheduled 4 TBs; in addition, 4 bits are also required to indicate the NDI of each of the scheduled 4 TBs in a bit map manner. Although the HARQ process number corresponding to each TB in the scheduled TBs can be flexibly indicated according to this method, when the maximum number of TBs that the DCI can schedule is large, according to the above method, Q bits are required to indicate the selected HARQ process number in a bit mapping manner, and L bits are required to indicate the NDI of each TB in a bit mapping manner, which requires (L + Q) bits to be occupied in the DCI in total, thereby increasing the bit overhead of the DCI.

Therefore, how to ensure the flexibility of selecting the HARQ process number and realize higher data transmission efficiency while reducing the bit overhead of the DCI is a problem to be solved.

In view of this, according to the technical scheme of this application embodiment. In the embodiment of the application, the network equipment sends the maximum number of TBs which can be scheduled by DCI to the terminal equipment; in a value range of the HARQ process number, indicating HARQ process numbers corresponding to one or more TBs scheduled by DCI to a terminal device by using at least one of a plurality of manners, wherein in one manner, the HARQ process numbers corresponding to the M TBs are determined by using a value indicating the HARQ process number corresponding to one TB and a value of M, when the DCI schedules the multiple TBs, bit overhead of the DCI can be reduced, and data transmission efficiency is improved.

Fig. 2 can be referred to as an application scenario of the embodiment of the present application. Fig. 2 includes a network device and a terminal device. The types of the terminal devices can be various, for example, in fig. 2, the terminal device 1 is a television, the terminal device 2 is a router, the terminal device 3 is a hot water kettle, the terminal device 4 is a water cup, the terminal device 5 is a mobile phone, and the terminal device 6 is a printer. The terminal device 5 may also serve as a relay for the terminal device 4 and the terminal device 6, and the uplink communication between the terminal device 4 and the terminal device 6 needs to be forwarded through the relay, that is, the terminal device 4 first sends the uplink signal to the terminal device 5, and the terminal device 5 forwards the uplink signal received by the terminal device 4 to the network device, so that the network device can receive the uplink signal from the terminal device 4. The same is true for the terminal device 6. For downlink communication, however, both terminal device 4 and terminal device 6 may receive downlink signals directly from the network device without forwarding through relays.

The network device in fig. 2 is, for example, a base station. The network device may correspond to different devices in different systems, for example, in a fourth generation mobile communication technology (4th generation, 4G) system, the network device may correspond to a network device in a 4G system, for example, an eNB, and in a 5G system, the network device may correspond to a network device in a 5G system, for example, a gNB.

The technical scheme provided by the embodiment of the application is described below with reference to the accompanying drawings.

An embodiment of the present application provides a communication method, please refer to fig. 3, which is a flowchart of the method. In the following description, the method is applied to the network architecture shown in fig. 2 as an example. In addition, the method may be performed by two communication devices, such as a first communication device and a second communication device, wherein the first communication device may be a network device or a communication device capable of implementing functions required by the method, and may of course be other communication devices, such as a system on a chip; the second communication means may be a terminal device or a communication means capable of implementing the functions required by the method, but may of course also be other communication means, such as a system-on-chip. The implementation manners of the first communication device and the second communication device are not limited, for example, the first communication device may be a network device, and the second communication device is a terminal device. The network device is, for example, a base station.

For convenience of introduction, in the following, the method is performed by a network device and a terminal device as an example, that is, the first communication apparatus is a network device and the second communication apparatus is a terminal device as an example. Since the present embodiment is applied to the network architecture shown in fig. 2 as an example, the network device described below may be a network device in the network architecture shown in fig. 2, and the terminal device described below may be a terminal device in the network architecture shown in fig. 2.

S31, the network device sends first information to the terminal device, where the first information indicates the maximum number of transport blocks that can be scheduled by the downlink control information.

In a wireless communication system, in order to improve transmission efficiency, multiple TBs carried by multiple data channels can be scheduled in one DCI, or one data channel can be scheduled, and the one data channel can carry multiple TBs, where the data channel is a physical downlink data channel or a physical uplink data channel. In the scheduling process, on one hand, the DCI needs to indicate the HARQ process number corresponding to or associated with the scheduled TB, and on the other hand, the DCI needs to indicate the NDI of each TB in the scheduled TB.

In the embodiment of the present application, when the DCI schedules the M TBs, the network device sends first information to the terminal device, where the first information is carried by a radio resource control signaling, or carried by a media access control signaling, or carried by a physical layer signaling. In other words, the network device sends a radio resource control signaling carrying the first information to the terminal device, or the network device sends a medium access control information carrying the first information to the terminal device, or the network device sends a physical layer signaling carrying the first information to the terminal device.

As an optional implementation manner, the maximum number of TBs that can be scheduled by the DCI is pre-agreed, for example, the maximum number of TBs that can be scheduled by the pre-agreed DCI is 2, the maximum number of TBs that can be scheduled by the pre-agreed DCI is 4, or the maximum number of TBs that can be scheduled by the pre-agreed DCI is 8.

As an optional implementation manner, the first information may also be used to indicate the maximum set of TBs that the DCI can be scheduled, that is, the maximum set of TBs that the network device can schedule to transmit the DCI to the terminal device, for example, the set may be {2,4,8}, or {1,2,4}, or {4,8}, and the like, and the embodiment of the present application is not limited thereto.

As another optional implementation, the maximum number of TBs that the DCI can schedule is predetermined, in this case, the network device does not need to send the first information to the terminal device, that is, the network device does not need to execute S31.

And S32, in the value range of the HARQ process number, the network equipment indicates the HARQ process number corresponding to one or more transmission blocks scheduled by the downlink control information to the terminal equipment.

In the value range of the HARQ process number, the network device indicates, to the terminal device, an HARQ process number corresponding to one TB of M TBs scheduled by the DCI, where the one TB may be represented as a first TB, and the first TB is a first TB of the M TBs; or the network device indicates the terminal device of HARQ process numbers corresponding to a plurality of TBs of the M TBs scheduled by the DCI. The value range of the HARQ process number is the value range of the HARQ process number corresponding to the TB which can be scheduled by the DCI.

It should be noted that the first TB may be any one of the M TBs, for example, when the first TB is a first TB of the M TBs, or the first TB is an mth TB of the M TBs, or when the value of M is greater than 1, the first TB is an (M-1) th TB of the M TBs, which is not limited in this embodiment of the application. Without being specifically described below, the first TB may be considered as the first TB of the M TBs.

As an optional implementation manner, the value range of the HARQ process number is pre-agreed, for example, the value range of the pre-agreed HARQ process number is [0,3], which means that M HARQ process numbers corresponding to M TBs are any M of 0,1, 2, and 3, or the value range of the pre-agreed HARQ process number is [0,7], which means that M HARQ process numbers corresponding to M TBs are any M of 0,1, 2,3,4, 5, 6, and 7.

As an optional implementation manner, the network device indicates, to the terminal device, HARQ process numbers corresponding to one or more transport blocks scheduled by the downlink control information in a value range of the HARQ process numbers according to the maximum number of TBs that can be scheduled by the DCI.

As an optional implementation manner, according to a value range of the HARQ process number, the network device indicates, to the terminal device, the HARQ process number corresponding to one or more transport blocks scheduled by the downlink control information in the value range of the HARQ process number.

As another optional implementation manner, according to the maximum number of TBs that can be scheduled by DCI and the value range of the HARQ process number, the network device indicates, to the terminal device, the HARQ process number corresponding to one or more transport blocks scheduled by downlink control information in the value range of the HARQ process number.

S33: after receiving the first information from the network device and the HARQ process numbers corresponding to the one or more transport blocks indicated by the network device, the terminal device determines, in response, the HARQ process numbers corresponding to the one or more transport blocks scheduled by the downlink control information within the value range of the HARQ process numbers.

In the value range of the HARQ process number, the terminal equipment determines the HARQ process number corresponding to one TB of M TBs scheduled by the DCI, wherein the one TB can be represented as a first TB, and the first TB is the first TB of the M TBs; or, the network device determines HARQ process numbers corresponding to a plurality of TBs of the M TBs scheduled by the DCI. The value range of the HARQ process number is the value range of the HARQ process number corresponding to the TB which can be scheduled by the DCI.

As an optional implementation manner, the maximum number of TBs that the DCI can schedule is a predetermined convention, and after receiving HARQ process numbers corresponding to one or more transport blocks indicated by the network device, the terminal device determines, within a value range of the HARQ process numbers, HARQ process numbers corresponding to the one or more transport blocks scheduled by the downlink control information.

As an optional implementation manner, the terminal device determines, according to the maximum number of TBs that can be scheduled by the DCI, HARQ process numbers corresponding to one or more transport blocks scheduled by the downlink control information within a value range of the HARQ process numbers.

As an optional implementation manner, the terminal device determines, according to a value range of the HARQ process number, HARQ process numbers corresponding to one or more transport blocks scheduled by the downlink control information within the value range of the HARQ process number.

As another optional implementation manner, the terminal device determines, according to the maximum number of TBs that can be scheduled by the DCI and the value range of the HARQ process number, HARQ process numbers corresponding to one or more transport blocks scheduled by the downlink control information within the value range of the HARQ process number.

In the foregoing S31, that is, when the network device indicates, to the terminal device, HARQ process numbers corresponding to one or more transport blocks scheduled by the downlink control information in the value range of the HARQ process numbers, how to schedule M TBs in DCI may include various implementation manners, which are described in the following examples.

The first method is as follows: the network equipment realizes the scheduling of the M TBs within the value range of the HARQ process number according to the value range of the HARQ process number and the maximum number of the TBs which can be scheduled by the DCI; specifically, when L is 2, the network device uses DCI

One bit to indicate the M TBs, wherein,

in one bit

The consecutive bits indicate the HARQ process number corresponding to each of the M TBs,

division in one bit

The remaining 2 consecutive bits except the M consecutive bits indicate the NDI of each of the M TBs in a bit mapped manner; l is>2, network device uses in DCI

One bit to indicate M TBs, where,

in one bit

division in one bit

Consecutive L bits other than the consecutive bits indicate an NDI of each of the M TBs in a bit mapped manner.

Wherein,

the bit represents a ceiling.

Obviously, in the first mode

Indicated HARQ process number combination or

The indicated HARQ process number combination may implicitly indicate the number of TBs actually scheduled by the DCI, that is, implicitly indicate the value of M, and the M HARQ process numbers corresponding to the M TBs may be arranged continuously or non-continuously.

It should be noted that, in the first embodiment, when L is 2, the process is performed

Of the bits, from the first upper bit to the lower bit,

the L consecutive bits may be located before or after the L consecutive bits, and the embodiment of the present application is not limited thereto. Likewise, L>At 2 time, in

Of the bits, from the first upper bit to the lower bit,

the L consecutive bits may be located before or after the L consecutive bits, and the embodiment of the present application is not limited thereto. Hereinafter, without being particularly described, it is considered that the DCI includes the first upper bit to the lower bit

Or the said

A consecutive bit precedes the L consecutive bits.

The following describes a specific implementation of the first embodiment in detail.

When L is 2, 2 HARQ process numbers are arbitrarily selected from Q HARQ process numbers to indicate M TBs which can be scheduled, so that

A combination of species, thereby requiring in DCI

A number of consecutive bits to indicate a HARQ process number corresponding to each of the M TBs; in addition, L consecutive bits are needed to indicate the NDI of each of the M TBs in a bit-mapped manner, so that DCI requires L consecutive bits to indicate the NDI of each of the M TBs

One bit to implement the scheduling of M TBs. For example, when Q is 4, the network device needs to schedule M TBs using 5 bits in the DCI, where 3 consecutive bits of the 5 bits are used to indicate a HARQ process number corresponding to each TB, and 2 consecutive bits of the 5 bits except the 3 consecutive bits indicate an NDI of each TB of the M TBs in a bit mapping manner; for example, when Q is equal to 8, the network device needs to schedule M TBs using 7 bits in the DCI, where 5 consecutive bits of the 7 bits are used to indicate a HARQ process number corresponding to each of the M TBs, and 2 consecutive bits of the 7 bits except the 5 consecutive bits indicate an NDI of each of the M TBs in a bit mapping manner.

At L>2, randomly selecting L HARQ process numbers from Q HARQ process numbers to indicate L TBs which can be scheduled, so that

In the combination, the number of (L-1) HARQ processes is arbitrarily selected from Q HARQ processes to indicate (L-1) TBs which can be scheduled, so that

Seed combinations, analogized in turn, at L>In case 2, the number of combinations of the selectable HARQ process numbers corresponding to the TBs that can be scheduled by the DCI is

Thereby the need for

A number of consecutive bits to indicate a HARQ process number corresponding to each of the M TBs; in addition, L continuous bits are needed to indicate the NDI of each of the M TBs in a bit mapping manner; thus, there is a need in DCI

One bit enables scheduling of M TBs. For example, when L is 4 and Q is 4, the network device may need to occupy 8 bits in the DCI to implement scheduling of M TBs, where 4 consecutive bits in the 8 bits are used to indicate a HARQ process number corresponding to each TB in the M TBs, and the remaining 4 consecutive bits except the 4 consecutive bits in the 8 bits indicate an NDI of each scheduled TB in a bit mapping manner. For example, when L is 4 and Q is 8, the network device may need to occupy 12 bits in the DCI to implement scheduling of M TBs, where 8 consecutive bits of the 12 bits indicate a HARQ process number corresponding to each scheduled TB, and the remaining 4 consecutive bits of the 12 bits except the 8 consecutive bits indicate an NDI of each scheduled TB in a bitmap manner. For another example, when L is 8 and Q is 8, the network device may need to use 17 bits to schedule M TBs in the DCI, where 9 consecutive bits in the 17 bits indicate a HARQ process number corresponding to each scheduled TB, and remaining 8 consecutive bits except the 9 consecutive bits in the 17 bits indicate an NDI of each scheduled TB in a bit mapping manner.

Illustratively, L is 2, Q is 4, that is, the maximum number of TBs that the DCI can schedule is 2, and when the value range of the HARQ process number is [0,3], it may be determined that 5 bits need to be occupied in the DCI to indicate the scheduled M TBs according to the above-mentioned manner, as shown in table 1.1, 3 consecutive bits of the 5 bits indicate the HARQ process number corresponding to each TB of 1 or 2 scheduled TBs, and the remaining 2 consecutive bits except the 3 consecutive bits indicate the NDI of each TB of 1 or 2 scheduled TBs according to a bit mapping manner.

Table 1.1: bit number in DCI for indicating scheduled M TBs

Bit number indicating HARQ process number corresponding to each TB	Number of bits for new or retransmission
3bit	2bit

Referring to table 1.2, an indication of 3 consecutive bits in table 1.1 is exemplarily shown; as shown in table 1.2, when HARQ process numbers corresponding to 2 TBs are 0 and 1, respectively, the network device sets the 3 bits to 000; when the HARQ process numbers corresponding to the 2 TBs are 0 and 2, respectively, the network device sets the 3 bits to 001; when the HARQ process numbers corresponding to the 2 TBs are 0 and 3, respectively, the network device sets the 3 bits to 010; when the HARQ process numbers corresponding to the 2 TBs are 1 and 2, respectively, the network device sets the 3 bits to 011; when the HARQ process numbers corresponding to the 2 TBs are 1 and 3, respectively, the network device sets the 3 bits to 100; when HARQ process numbers corresponding to 2 TBs are 2 and 3, respectively, the network device sets the 3 bits to 101. In addition, the remaining 2 states, except for the aforementioned 6 states, of the 8 states corresponding to 3 consecutive bits may indicate scheduling of a single TB, for example, when HARQ process numbers corresponding to 1 TB are 0 respectively, the network device sets the 3 bits to 110; when the HARQ process numbers corresponding to 1 TB are 2, the network device sets the 3 bits to 111.

Table 1.2: indicating mode

HARQ process number	0、1	0、2	0、3	1、2	1、3	2、3	0	2
3 bits	000	001	010	011	100	101	110	111

According to the first mode, when the DCI schedules multiple TBs, the number of combinations of selectable HARQ process numbers is large, which means that the flexibility of scheduling the multiple TBs is high, but when L, Q is large, the bit overhead of the DCI is large, and when the value of M is smaller than L, consecutive L bits indicate that (L-M) bits are unused in the NDI of each TB of the M TBs, for example, when L is 8 and Q is 8, 17 bits need to be occupied in the DCI to schedule the multiple bits according to the first mode.

However, it should be noted that in the first implementation manner, when the bit overhead of the DCI is related to the value of M, for example, L is 4, and Q is 8, according to the first implementation manner, 12 bits need to be occupied in the DCI to implement scheduling of M TBs, but in practical application, in order to reduce the bit overhead of the DCI, the maximum value of the value of M is 4, when the value of M is 2, only 2 consecutive bits need to indicate the NDI of each TB in a bit mapping manner, that is, only 10 bits of the DCI need to be occupied to complete scheduling of the 2 TBs, and the other 8 consecutive bits of the 10 bits indicate 2 HARQ process numbers corresponding to the 2 TBs. That is, when L is 2, occupation is required in DCI

One bit, when L>2, occupation is required in DCI

And (4) a bit. Of course, in case of being insensitive to the bit overhead of DCI, L consecutive bits may be reserved to indicate the HARQ process number of each of the M TBs in a bit-mapped manner.

The second method comprises the following steps: the network equipment realizes the scheduling of the M TBs in the value range of the HARQ process number according to the maximum number of the TBs which can be scheduled by the DCI and the value range of the HARQ process number; specifically, the network device uses in DCI

One bit to indicate the M TBs, this

In one bit

One continuous bit is used to indicate the HARQ process number corresponding to the first TB

Divide the bit by

The remaining (L +1) consecutive bits other than the consecutive bits are used to indicate a value of M and an NDI of each of the M TBs, where the first TB is the first TB.

In the second mode, the number of HARQ process numbers selectable in the value range of the HARQ process number is Q, and the HARQ process number corresponding to the first TB may be any one of the Q HARQ process numbers, so that DCI requires the HARQ process number to be selected

A number of consecutive bits to indicate a HARQ process number corresponding to the first TB; in addition, it also needs (L +1) consecutive bits to indicate the value of M and the NDI of each of the M TBs, where (L +1-M) consecutive bits from the first upper bit to the lower bit of the (L +1) consecutive bits indicate the value of M, and the remaining M consecutive bits except the (L +1-M) consecutive bits in the (L +1) consecutive bits indicate the NDI of each of the M TBs in a bit mapping manner.

Wherein, in the (L +1-M) bits, the state of the (L +1-M) th bit from the first upper bit to the lower bit is 1, the state of the (L +1-M) th bit except the (L +1-M) th bit in the (L +1-M) bits is 0, M consecutive bits after the (L +1-M) th bit indicate the NDI of each TB of the M TBs in a bit mapping manner, meaning that, in the (L +1-M) bits, the position of the bit with the first state of 1 from the first upper bit to the lower bit in the (L +1-M) bits indicates the value of M, that is, in the (L +1-M) bits, the first bit with the state of 1 from the first high-order bit to the low-order bit is the ith bit, i is (L +1-M), and the value of M is (L + 1-M-i).

Thus, in the second embodiment of the present application, the network device needs to occupy the DCI

One bit to schedule M TBs.

It should be noted that the position of a bit in a plurality of bits can be determined according to the number, identification, sequence number, etc. of the plurality of bits. For example, the numbers corresponding to 3 bits are 6,8, and 7, respectively, and from the upper bit to the lower bit, the bit with the number of 7 at the position of the 3 bits can be represented by the 2 nd bit.

It should be noted that, in the second embodiment, the second embodiment is described above

From the first upper bit to the lower bit of the bits, for indicating the HARQ process number corresponding to the first TB

The consecutive bits may be located before or after (L +1) consecutive bits, which is not limited in the embodiments of the present application, and in the case that no specific description is made below, it may be considered that the DCI is summarized from the first upper bit to the lower bit

The (L +1) consecutive bits may be preceded by a consecutive bit.

It should be further noted that, in the second mode, the value of M may also be determined from the lower-order bit to the upper-order bit, for example, in the (L +1-M) bits, the state of the (L +1-M) th bit from the first lower-order bit to the upper-order bit is 1, so that the position of the bit with the first state of 1 from the first lower-order bit to the upper-order bit in the (L +1-M) bits indicates the value of M.

For example, when L is 2 and Q is 4, the network device needs to occupy 5 bits in the DCI to indicate M TBs, 2 consecutive bits in the 5 bits indicate the HARQ process number corresponding to the first TB, and the remaining 3 consecutive bits except the 2 consecutive bits indicate the value of M and the NDI of each TB in the M TBs. For example, when L is 2 and Q is 8, the network device needs to indicate M TBs when the DCI occupies 6 bits, where 3 consecutive bits in the 6 bits indicate the HARQ process number corresponding to the first TB, and the remaining 3 consecutive bits except the 3 consecutive bits indicate the value of M and the NDI of each TB in the M TBs. For example, when L is 4 and Q is 4, the network device needs to indicate M TBs when the DCI occupies 7 bits, 2 consecutive bits in the 7 bits indicate a HARQ process number corresponding to a scheduled first TB, and the remaining 5 consecutive bits except the 2 consecutive bits indicate a value of M and an NDI of each TB in the M TBs. For example, when L is 4 and Q is 8, the network device needs to indicate M TBs when the DCI occupies 8 bits, where 3 consecutive bits of the 8 bits are used to indicate a HARQ process number corresponding to a scheduled first TB, and the remaining 5 consecutive bits except the 3 consecutive bits indicate a value of M and an NDI of each TB of the M TBs. For another example, when L is 8 and Q is 8, the network device needs to indicate the scheduled M TBs when the DCI occupies 12 bits, where 3 consecutive bits of the 12 bits are used to indicate a HARQ process number corresponding to a scheduled first TB, and the remaining 9 consecutive bits except the 3 consecutive bits indicate a value of M and an NDI of each TB of the M TBs.

Illustratively, L is 4, Q is 8, that is, the maximum number of TBs that the DCI can schedule is 4, and when the value range of the HARQ process number is [0,7], it may be determined that 8 bits need to be occupied in the DCI to indicate the scheduled M TBs according to the above-mentioned manner two, as shown in table 2.1, 3 consecutive bits of the 8 bits are used to indicate the first HARQ process number, and the remaining 5 consecutive bits of the 8 bits except the 3 consecutive bits are used to indicate the value of M and the NDI of each TB of the M TBs.

Table 2.1: bit number for indicating M TBs in DCI

Number of bits indicating first HARQ process number	Indicating M value and NDI of each TB
3bit	5bit

Referring to table 2.2, an indication of the 8 bits shown in table 2.1 is exemplarily shown; as shown in table 2.2, when M is 4, the network device uses 3 consecutive bits in the DCI to indicate that the HARQ process number corresponding to the first TB is any one of 0 to 4, for example, the network device sets the 3 bits to 010 to indicate that the HARQ process number corresponding to the first TB is 2, then the HARQ process numbers corresponding to the remaining 3 TBs are 3,4, and 5, respectively, for example, the network device sets the value of the 3 bits to 100 to indicate that the HARQ process number corresponding to the first TB is 4, then the HARQ process numbers corresponding to the remaining 3 TBs are 5, 6, and 7, respectively, and in addition, the network device needs to set 5 bits in the DCI to "1 to indicate the value of M and the NDI of each TB of the M TBs; when M is 3, the network device uses 3 consecutive bits in the DCI to indicate that the HARQ process number corresponding to the first TB is any one of 0 to 5, and in addition, the network device needs to set 5 bits in the DCI to "01 × × to indicate a value of M and an NDI of each TB of the M TBs; when M is 2, the network device uses 3 consecutive bits in the DCI to indicate that the HARQ process number corresponding to the first TB is any one of 0 to 6, and in addition, the network device needs to set 5 bits in the DCI to "001 × to indicate a value of M and an NDI of each TB of the M TBs; when M is 1, the network device uses 3 consecutive bits in the DCI to indicate that the HARQ process number corresponding to the first TB is any one of [0,7], and in addition, the network device needs to set 5 bits in the DCI to "0001" to indicate that 1 scheduled TB and that TB is used for new transmission or retransmission.

Table 2.2: indicating mode

According to the second mode, the DCI may be used to indicate scheduling of one or more TBs, and when the DCI schedules multiple TBs, the multiple TBs need to be occupied in the DCI

A bit in which is continuous

The bit is used to indicate the HARQ process number corresponding to the first TB, which means that the HARQ process number corresponding to the first TB is not fixed, and the number of combinations of the selectable HARQ process numbers is not single, so that the flexibility of scheduling multiple TBs is ensured, for example, when L is 8 and Q is 8, 12 bits need to be occupied in DCI to schedule M TBs according to the above second method.

It is to be noted that ""' in the embodiments of the present application merely exemplarily indicates an NDI of each of the M TBs.

It should be noted that, in the second manner, the first TB is a first TB, and of course, the first TB may also be any one of M TBs, for example, the first TB is a second TB of the M TBs, and when the terminal device determines that the HARQ process number corresponding to the first TB is 3, and the value of M is 3, the HARQ process numbers corresponding to the M TBs are 2,3, and 4, respectively.

The third method comprises the following steps: the network equipment realizes the scheduling of M TBs in the value range of the HARQ process number according to the value range of the HARQ process number; specifically, the network device indicates the M TBs using (Q +2) consecutive bits in the DCI, where (Q +1-M) consecutive bits from a first upper bit to a lower bit of the (Q +2) consecutive bits indicate a HARQ process number corresponding to the first TB, and remaining (M +1) consecutive bits except the (Q +1-M) consecutive bits indicate a value of the M and an NDI of each of the M TBs.

In the third embodiment, the value range of the HARQ process number is 0 to Q-1, the number of the TBs actually scheduled by the DCI is M, the HARQ process number corresponding to the first TB is indicated by using the position of the bit with the first state of 1 in the (Q +2) bits from the first high-order bit to the low-order bit in the (Q +2) consecutive bits, and the value of M is indicated by using the position of the bit with the second state of 1 in the (Q +2) bits (where M consecutive bits following the bit with the second state of 1 indicate the NDI of each of the M TBs in a bit mapping manner.

Thus, (Q +1-M) consecutive bits from the first high bit to the low bit are required by the network device to indicate the HARQ process number corresponding to the first TB, and in addition, (1+ M) consecutive bits are required in the DCI to indicate the value of M and the NDI of each of the M TBs.

Wherein, it is assumed that the HARQ process number corresponding to the first TB is (j +1), and in the (Q +1-M) consecutive bits, the state of the jth bit from the first higher bit to the lower bit is 1, and the states of the remaining bits except for the jth bit in the (Q +1-M) consecutive bits are 0, in other words, in the (Q +2) consecutive bits, the jth bit is a bit with the first state being 1 from the first higher bit to the lower bit; for example, Q is 4, M is 2, the HARQ process number corresponding to the first TB may be any one of 0 to 2, the network device needs to occupy 3 consecutive bits in the DCI to indicate the HARQ process number corresponding to the first TB, when the HARQ process number corresponding to the first TB is 0, the 3 consecutive bits are 100, when the HARQ process number corresponding to the first TB is 1, the 3 consecutive bits are 010, and when the HARQ process number corresponding to the first TB is 2, the 3 consecutive bits are 001; among the (L +1) consecutive bits; in (Q +2) consecutive bits, a second bit with a state of 1 from a first higher bit to a lower bit is used to indicate the value of M at the position of the (L +1) consecutive bits, that is, the second bit with a state of 1 is the ith bit from the first higher bit to the lower bit in the (Q +2) bits, obviously, i is (Q +2-M), then the value of M is (Q +2-i), and the remaining M consecutive bits after the ith bit indicate the NDI of each TB in the M TBs in a bit mapping manner.

It should be noted that, in the third mode, the position of the bit indicating the HARQ process number corresponding to the first TB in the consecutive (Q +2) bits and the position of the bit indicating the value of M in the consecutive (Q +2) bits may also be determined from the first lower bit to the upper bit.

It should also be noted that, in the specific implementation process of the third mode, the first TB is a first TB in the M TBs, and of course, the first TB may also be other TBs except the first TB in the M TBs, which is not limited in this embodiment of the application, for example, the first TB is an mth TB in the M TBs, and a HARQ process number corresponding to the first TB is (i-1), according to the third mode, a state of an (i + M-1) th bit from a first high bit to a low bit in the (Q +1-M) bits needs to be set to 1, and states of other bits except the (i + M-1) th bit are set to 0.

Thus, in the third embodiment of the present application, the network device needs to occupy (Q +2) consecutive bits in the DCI to schedule the M TBs.

For example, when L is 2 and Q is 4, the network device needs to occupy 6 consecutive bits in the DCI to indicate M TBs, where (5-M) consecutive bits of the 6 consecutive bits indicate a HARQ process number corresponding to a first scheduled TB, and the remaining (M +1) consecutive bits indicate a value of M and an NDI of each TB of the M TBs. For example, when L is 2 and Q is 8, the network device needs to schedule M TBs when the DCI occupies 10 consecutive bits, where (9-M) consecutive bits of the 10 incoming bits are used to indicate a HARQ process number corresponding to a first scheduled TB, and the remaining (M +1) consecutive bits except the (9-M) consecutive bits are used to indicate a value of M and an NDI of each TB of the M TBs. For example, when L is 4 and Q is 4, the network device needs to schedule M TBs when the DCI occupies 6 consecutive bits, where (5-M) consecutive bits of the 6 incoming bits are used to indicate a HARQ process number corresponding to a first scheduled TB, and the remaining (M +1) consecutive bits except the (5-M) consecutive bits are used to indicate a value of M and an NDI of each TB of the M TBs. For example, when L is 4 and Q is 8, the network device needs to schedule M TBs by using 10 consecutive bits in DCI, where (9-M) consecutive bits of the 10 bits are used to indicate a HARQ process number corresponding to a first scheduled TB, and the remaining (M +1) consecutive bits except the (9-M) consecutive bits are used to indicate a value of M and an NDI of each TB of the M TBs. For another example, when L is 8 and Q is 8, 10 consecutive bits are required to be occupied by DCI to indicate the scheduled M TBs, where (9-M) consecutive bits of the 10 consecutive bits are used to indicate a HARQ process number corresponding to a first scheduled TB, and the remaining (M +1) consecutive bits except the (9-M) consecutive bits are used to indicate a value of M and an NDI of each TB of the M TBs.

Illustratively, when Q is 8 and L is 8, that is, the maximum number of TBs that the DCI can schedule is 8, and the value range of the HARQ process number is [0,7], it may be determined that 10 consecutive bits need to be occupied in the DCI to indicate the scheduled M TBs in the above manner, as shown in table 3.1, where (9-M) consecutive bits of the 10 bits indicate the first HARQ process number, and the remaining (M +1) consecutive bits except the (9-M) bits are used to indicate the value of M and the NDI of each TB of the M TBs.

Table 3.1: bit number in DCI for indicating M TBs

Indicating HARQ process number corresponding to first TB	Indicating M value and NDI of each TB
(9-M)bit	(M+1)bit

Referring to table 3.2, an indication manner of 10 consecutive bits shown in table 3.1 is exemplarily shown, where the first TB is a first TB; as shown in table 3.2, when M is 8 and the HARQ process number corresponding to the first TB is 0, the network device sets 10 consecutive bits in the DCI to "11 × × to" to schedule 8 TBs; when M is 7, and the HARQ process number corresponding to the first TB is 0 or 1, the network device sets 10 consecutive bits in the DCI to "101 × × or" 011 × × to schedule 7 TBs, accordingly; when M is 6, and the HARQ process number corresponding to the first TB is 0, or 1, or 2, the network device sets 10 consecutive bits in the DCI to "1001 × × or" 0101 × or "0011 × × to schedule 6 TBs, accordingly; when M is 5, the HARQ process number corresponding to the first TB is 0, or 1, or 2, or 3, the network device sets 10 consecutive bits in the DCI to "10001 × × 1", or "01001 ×", or "00101 × or" 00011 × to schedule 5 TBs, respectively; when M is 4, the HARQ process number corresponding to the first TB is 0, or 1, or 2, or 3, or 4, the network device sets 10 consecutive bits in the DCI to "100001 × 001 × or" 001001 × or "000101 × or" 000011 × respectively to schedule 4 TBs; when M is 3, the HARQ process number corresponding to the first TB is 0, or 1, or 2, or 3, or 4, or 5, the network device sets 10 consecutive bits in the DCI to "1000001 × or" 0100001 × or "0010001 × or" 0001001 × or "0000101 × or" 0000011 × to schedule 3 TBs, respectively; when M is 2, the HARQ process number corresponding to the first TB is 0, or 1, or 2, or 3, or 4, or 5, or 6, the network device sets 10 consecutive bits in the DCI to "10000001 ×," 01000001 ×, "00100001 ×," 00010001 ×, "00001001 ×," 00000101 ×, or "00000011 ×" to schedule 2 TBs, accordingly; in addition, the third method may also be used to indicate scheduling of a single TB, for example, the network device sets 10 consecutive bits in the DCI to "100000001 ″, or" 010000001 ″, or "001000001 ″, or" 000100001 ″, or "000010001 ″, or" 000001001 ″, or "000000101 ″, or" 000000011 ″, so as to indicate that the HARQ process number corresponding to the first TB is one of [0,7 ].

Table 3.2: indicating mode

According to the third mode, the DCI can implement scheduling of one or more TBs, when the DCI schedules a plurality of TBs, (Q +2) consecutive bits need to be occupied in the DCI, where the (Q +1-M) consecutive bits indicate the HARQ process number corresponding to the first TB, which means that the HARQ process number corresponding to the first TB is not fixed, the number of combinations of the selectable HARQ process numbers is not single, and the flexibility of scheduling the plurality of TBs is ensured.

The method is as follows: the HARQ process number corresponding to the first TB is predefined to be 0, and the network equipment realizes the scheduling of M TBs within the value range of the HARQ process number according to the maximum number of the TBs which can be scheduled by the DCI; specifically, the network device uses (L +1) consecutive bits in the DCI to indicate a value of M and an NDI of each of the M TBs, where (L +1-M) consecutive bits of the (L +1) consecutive bits are used to indicate a value of M and M consecutive bits other than the (L +1-M) consecutive bits are used to indicate an NDI of each of the M TBs.

In the fourth mode, the network device uses the state of the bit to indicate the value of M, so that (L +1-M) consecutive bits need to be occupied in the DCI to indicate the value of M, where the state of the ith bit from the first high-order bit to the low-order bit in the (L +1-M) consecutive bits is 1, the states of the rest bits except the ith bit are 0, and M consecutive bits after the ith bit indicate the NDI of each TB in the M TBs in a bit mapping manner, in other words, the ith bit is a bit of the (L +1) bit, the first state from the first high-order bit to the low-order bit is 1, obviously, the i is (L +1-M), so the value of M is (L + 1-i).

In this way, in the fourth mode in this embodiment of the application, the network device needs to use (L +1) consecutive bits in the DCI to schedule the M TBs.

It should be noted that, in the fourth mode, the state of the ith bit may also be set to 1 from the first lower bit to the upper bit, that is, in (L +1) consecutive bits, the bit with the first state of 1 from the first lower bit to the upper bit is the ith bit, which is not limited in this embodiment of the present application.

For example, when L is equal to 2, the network device needs to use 3 consecutive bits in the DCI to indicate M TBs, where (3-M) consecutive bits of the 3 consecutive bits are used to indicate a value of M, and the remaining M consecutive bits except the (3-M) consecutive bits indicate an NDI of each scheduled TB in a bitmap manner. For example, when L is 4, the network device needs to occupy 5 consecutive bits in the DCI to indicate the scheduled M TBs, where (5-M) consecutive bits of the 5 consecutive bits are used to indicate a value of M, and the remaining M consecutive bits except the (5-M) consecutive bits indicate an NDI of each scheduled TB in a bitmap manner. When L is 8, the network device needs to occupy 9 consecutive bits in the DCI to indicate the scheduled M TBs, where (9-M) consecutive bits of the 9 consecutive bits are used to indicate a value of M, and the remaining M consecutive bits except the (9-M) consecutive bits indicate an NDI of each scheduled TB in a bitmap manner.

Exemplarily, L is 8, that is, the maximum number of TBs that the DCI can schedule is 8, and it may be determined that the network device needs to use 9 consecutive bits in the DCI to indicate the scheduled M TBs in the above-described manner; as shown in table 4, the network device uses 9 consecutive bits in the DCI to indicate the value of M and the NDI of each of the M TBs; when M is 8, the network device sets 9 consecutive bits in the DCI to "1 x" to indicate the scheduled 8 TBs; when M is 7, the network device sets 9 consecutive bits in the DCI to "01 x" to indicate the scheduled 7 TBs; when M is 6, the network device sets 9 consecutive bits in the DCI to "001 x" to indicate the scheduled 6 TBs; when M is 5, the network device sets 9 consecutive bits in the DCI to "0001 x" to indicate the scheduled 5 TBs; when M is 4, the network device sets 9 consecutive bits in the DCI to "00001 x" to indicate the scheduled 4 TBs; when M is 3, the network device sets 9 consecutive bits in the DCI to "000001 x" to indicate the scheduled 3 TBs; when M is 2, the network device sets 9 consecutive bits in the DCI to "0000001 × to indicate the scheduled 2 TBs; when M is 1, the network device sets 9 consecutive bits in the DCI to "00000001 ″) to indicate the scheduled 1 TB.

Table 4: indicating mode

Illustratively, L is 4, the HARQ process number corresponding to the first TB is 0, see table 5, and the network device uses 5 consecutive bits in the DCI to indicate a value of M and an NDI of each TB of the M TBs; when M is 4, the network device sets 5 consecutive bits in the DCI to "1 x" to indicate the scheduled 4 TBs; when M is 3, the network device sets 5 consecutive bits in the DCI to "01 x" to indicate the scheduled 3 TBs; when M is 2, the network device sets 5 consecutive bits in the DCI to "001 x" to indicate the scheduled 2 TBs; when M is 1, the network device sets 5 consecutive bits in the DCI to "0001" to indicate the scheduled 1 TB.

Table 5: indicating mode

In the fourth mode, the HARQ process number corresponding to the first TB is predetermined as a fixed value, that is, the HARQ process number corresponding to the first TB is fixed, the number of selectable HARQ process number combinations is reduced, which is equivalent to that scheduling of multiple TBs lacks flexibility, and limits the indication and use of the HARQ process number, but reduces the bit overhead of DCI from (L + Q) to (L +1), and when DCI schedules multiple TBs, only (L +1) bits need to be occupied in DCI, that is, the bit overhead of DCI is reduced to the greatest extent, so as to improve the bit overhead of DCI

It should be noted that, when only the HARQ process number corresponding to the first TB is indicated in the DCI, the (M-1) HARQ process numbers corresponding to the remaining (M-1) TBs may be determined according to a pre-agreed permutation rule. For example, the preassigned permutation rule is that M HARQ process numbers corresponding to M TBs are consecutively arranged (consecutively increasing arrangement or consecutively decreasing arrangement), such as 0,1, … …, Q-1; or M HARQ process numbers even permutation corresponding to M TBs, such as 0,2, … …, Q-2; or M HARQ process numbers corresponding to M TBs are arranged in odd numbers, such as 1, 3, … …, Q-1; the embodiments of the present application are not limited thereto. Without specific explanation, it is considered that M HARQ process numbers corresponding to M TBs are arranged consecutively.

It should be further noted that, in the foregoing, the bit state is 1 to indicate the HARQ process number corresponding to the first TB, or the value of M, obviously, the bit state may also be 0, and the states of the remaining related bits are 1 to indicate the HARQ process number corresponding to the first TB, or the value of M.

Please refer to table 6, which shows DCI bit overheads respectively needed according to the four manners, when L is 2 and Q is 4, 5 bits need to be used in DCI according to the first manner, 5 bits need to be used in DCI according to the second manner, 6 bits need to be used in DCI according to the third manner, and 3 bits need to be used in DCI according to the fourth manner; when L is 4 and Q is 4,8 bits need to be used in DCI in a first mode, 7 bits need to be used in DCI in a second mode, 6 bits need to be used in DCI in a third mode, and 5 bits need to be used in DCI in a fourth mode; when L is 4 and Q is 8, 12 bits need to be used in DCI according to a first mode, 8 bits need to be used in DCI according to a second mode, 10 bits need to be used in DCI according to a third mode, and 5 bits need to be used in DCI according to a fourth mode; when L is 8 and Q is 4, 17 bits need to be used in DCI in the first mode, 12 bits need to be used in DCI in the second mode, 10 bits need to be used in DCI in the third mode, and 9 bits need to be used in DCI in the fourth mode.

Table 6: four ways bit overhead in DCI

Maximum number of TBs that can be scheduled (HARQ value range)	In a first mode	Mode two	Mode III	Scheme four
2([0,3])	5	5	6	3
4([0,3])	8	7	6	5
4([0,7])	12	8	10	5
8([0,7])	17	12	10	9

In S32, considering the bit overhead of DCI and the flexibility of TB scheduling, how the network device indicates, to the terminal device, the HARQ process number corresponding to one or more TBs scheduled by DCI within the value range of the HARQ process number may be implemented using at least one of the following cases 1 to 5, which is described in the following examples.

Case 1: according to the first mode, the DCI comprises a first field, the first field indicates the HARQ process number corresponding to each TB in one or two TBs, and when the first field indicates the HARQ process number corresponding to two TBs, the HARQ process numbers corresponding to two TBs can be discontinuous, and the DCI also indicates the NDI of each TB in a bit mapping mode.

Further, the first field indicates HARQ process numbers corresponding to each of one or two TBs with 3 consecutive bits, 6 states of the 3 consecutive bits are used to indicate HARQ process numbers corresponding to each of the two TBs when the DCI schedules the two TBs, and the DCI indicates NDI of each of the two TBs with 2 consecutive bits.

Further, the remaining 2 states of the 8 states of 3 consecutive bits except the 6 states are used to indicate the HARQ process number corresponding to the one TB when the DCI schedules the one TB, and one bit in the DCI indicates the NDI of the one TB.

For case 1, according to the HARQ process number corresponding to each TB of M, M TBs and the NDI of each TB of M TBs, the network device uses 3 consecutive bits of 5 bits in the DCI to indicate the HARQ process number corresponding to each TB of M TBs, and uses the remaining M consecutive bits of the 5 bits except the 3 consecutive bits in the DCI to indicate the NDI of each TB of M TBs (when M is 1,1 bit is used to indicate the NDI of the 1 TB). From the first high bit to the low bit, please refer to table 2.2, the 3 consecutive bits may be located before the 2 consecutive bits, or the 3 consecutive bits may be located after the 2 consecutive bits, for example, when M is 2, HARQ process numbers corresponding to 2 TBs are 0 and 3, and 5 bits in the DCI may be set to "010" or "010".

In case 1, 3 consecutive bits are used to indicate the HARQ process number corresponding to each TB of M TBs, 3 consecutive bits correspond to 8 states, and M is maximum to be 2, and 4 HARQ process numbers can be selected, that is, the number of combinations of HARQ process numbers corresponding to 2 TBs is 6, obviously, 8 states corresponding to 3 bits can indicate combinations of HARQ process numbers corresponding to all 2 TBs, that is, when M is 2, the 3 consecutive bits can be used to indicate the HARQ process number corresponding to each TB, please refer to table 2.2, and the remaining 2 states in the 8 states can also be used to indicate scheduling of a single TB, it can be seen that the implementation described in case 1 realizes scheduling of multiple TBs in DCI with the greatest flexibility, and at the same time, the bit overhead on DCI is also small.

Case 2: when the maximum number of TBs that can be scheduled by DCI is 4, and the numeric area of HARQ process numbers is [0,7], indicating the scheduled M TBs by using the above method, where M is greater than or equal to 1 and is less than or equal to 4, so that 8 bits in the DCI need to be occupied, according to the above method two, the DCI needs to indicate the HARQ process number corresponding to the first TB of the M TBs, the DCI includes a second field with 5 consecutive bits, where there are M consecutive bits in the second field to indicate the NDI of the M TBs in a bit mapping manner, the bit states of (4-M) bits in the remaining (5-M) bits in the second field are all 0, and the bit state of one bit except the (4-M) bits is 1. The first TB is a first TB, and M HARQ process numbers corresponding to the M TBs are continuous.

Further, 3 consecutive bits are used in the DCI to indicate the HARQ process number corresponding to the first TB, in the second field, the state of an ith bit from a first high-order bit to a low-order bit is 1, which is used to indicate the value of M, where i is (5-M), the states of first (4-M) bits of the ith bit are all 0, and M consecutive bits after the ith bit indicate the NDI of the M TBs in a bit mapping manner.

For case 2, according to M, the HARQ process number corresponding to the first TB, and the NDI of each of the M TBs, the network device uses 3 consecutive bits of 8 bits in the DCI to indicate the HARQ process number corresponding to the first TB, and uses 5 consecutive bits of the 8 bits except for the 3 consecutive bits to indicate the value of M and the NDI of each of the M TBs, where, from the first higher bit to the lower bit, in the 5 consecutive bits except for the 3 bits, the state of the ith bit is set to 1, the state of the bit before the ith bit is set to 0, the M consecutive bits after the ith bit indicate the NDI of each of the M TBs in a bit mapping manner, where i is (5-M), in other words, the ith bit is in the 5 consecutive bits except for the 3 consecutive bits, the first bit with the state of 1 is from the first high-order bit to the low-order bit, so that after receiving the DCI, the terminal device determines the position of the bit with the state of 1 in the 5 bits, that is, the ith bit, from 5 consecutive bits except 3 consecutive bits in 8 bits in the DCI, and further determines that the value of M is (5-i). From the first upper bit to the lower bit, please refer to table 3.2, the 3 consecutive bits may be located before the 5 consecutive bits, or the 3 consecutive bits may be located after the 5 consecutive bits, for example, 3 consecutive bits are set to "000" to indicate that the HARQ process number corresponding to the first TB is 0, and when M is 2, 8 bits in the DCI may be set to "000001" or "001 × 000".

In

case

2,3 consecutive bits are used to indicate the HARQ process number corresponding to the first TB, although the arrangement is limited to the predefined arrangement of M HARQ process numbers corresponding to M TBs, and the 8 bits cannot indicate any combination of HARQ process numbers, for example, if the arrangement of the HARQ process numbers corresponding to M TBs is predefined, when M is 2 and the HARQ process number corresponding to the first TB is 0, the described manner in case 2 cannot indicate the scheduling manners of 0,1, 0,3, 0, 4, 0, 5, etc., but the HARQ process number corresponding to the first TB is not fixed, that is, the HARQ process corresponding to the first TB may flexibly indicate, for example, the arrangement of the HARQ process numbers corresponding to M TBs is predefined in advance, the first TB is the first TB, when M is 3, the HARQ process number corresponding to the first TB may be any one of 0 to 5, and the DCI schedules any one of 3 TBs is 6, it can be seen that the implementation described in case 3 ensures the flexibility of DCI scheduling for scheduling multiple TBs, and at the same time, the bit overhead for DCI is also small.

Case 3: when the maximum number of TBs that the DCI can schedule is 8, and the value range of the HARQ process number is [0,7], indicating the scheduled M TBs by using the third method, where M is greater than or equal to 1 and is less than or equal to 8, so that 10 bits of the DCI need to be occupied, according to the third method, the DCI includes 10 bits, where M consecutive bits among the 10 bits indicate NDIs of the M TBs in a bit mapping manner, where one bit of (9-M) consecutive bits except the M bits among the 10 bits is 1 and states of other (8-M) bits are 0, and where a bit of the 10 bits except the M consecutive bits and the (9-M) consecutive bits is 1.

Further, in the (9-M) consecutive bits, a jth bit from a first upper bit to a lower bit is used to indicate a HARQ process number (j-1) corresponding to the first TB, the state of the jth bit is 1, the states of the other (8-M) bits are all 0, in the 10 bits, an ith bit from the first upper bit to the lower bit is used to indicate a value of the M, the state of the ith bit is 1, and M consecutive bits after the ith bit indicate NDIs of the M TBs in a bit mapping manner.

For the case 3, according to M, the HARQ process number corresponding to the first TB, and the NDI of each of the M TBs, according to the third manner, in 10 bits in the DCI, (9-M) bits from the first upper bit to the lower bit are used to indicate the HARQ process number corresponding to the first TB, 1 bit with a state of 1 is used to indicate the value of M, and the M bits indicate the NDI of each of the M TBs in a bit mapping manner.

Specifically, assuming that the HARQ process number corresponding to the first TB is (j-1), the state of the jth bit from the first upper bit to the lower bit in (5-M) consecutive bits in the DCI is set to 1, the states of the remaining bits except for the jth bit in the (5-M) bits are set to 0, in other words, the jth bit is a bit of which the first state is 1 from the first upper bit to the lower bit in 6 consecutive bits in the DCI, for example, M is 2, j is 1, the first 3 consecutive bits in the 6 consecutive bits of the DCI are used to indicate the value of (j-1), the state of the second bit in the 3 consecutive bits needs to be set to 1, and the states of the first bit and the 3 rd bit in the 3 consecutive bits are both 0, so that after the terminal device receives the DCI, determining the position of a bit with a first state of 1 in the 6 bits from a first high bit to a low bit, namely determining a jth bit, and further determining that the HARQ process number corresponding to a first TB scheduled by the DCI is (j-1); setting the state of the ith bit from the first high bit to the low bit in 6 bits in the DCI to 1, where i is set to (6-M), and since the state of only the jth bit in the previous (5-M) bits is 1, the ith bit is a bit from the first high bit to the low bit in the 6 consecutive bits in the DCI and the second state is 1, for example, M is 2, it is necessary to set the state of the 4th bit from the first high bit to the low bit in the 6 consecutive bits to 1, so that after receiving the DCI, the terminal device may determine the position of the bit with the second state of 1 in the 6 consecutive bits from the first high bit to the low bit, that is, determine the ith bit, and further determine the value of M to be (6-i); and indicating the NDI of each of the M TBs by M continuous bits after the ith bit from the first high-order bit to the low-order bit in the 6 bits of the DCI according to a bit mapping mode.

In case 3, (9-M) consecutive bits are used to indicate the HARQ process number corresponding to the first TB, and although limited to the predefined arrangement of the M HARQ process numbers corresponding to the M TBs, the (9-M) consecutive bits cannot indicate any combination of HARQ process numbers, but the HARQ process number corresponding to the first TB is not fixed, that is, the HARQ process corresponding to the first TB can be flexibly indicated, and it can be seen that the implementation described in case 3 ensures flexibility of DCI scheduling for multiple TBs, and at the same time, the bit overhead for DCI is less.

Case 4: when the maximum number of TBs that the DCI can schedule is 4, and the value range of the HARQ process number is [0,3], indicating the scheduled M TBs by using the third method, where M is not less than 1 and not more than 4, so that 6 bits need to be occupied, according to the third method, the DCI includes 6 bits, where M consecutive bits among the 6 bits indicate NDIs of the M TBs in a bit mapping manner, where one bit of (5-M) consecutive bits except the M bits among the 6 bits is 1 and states of other (4-M) bits are all 0, and where one bit of the 6 bits except the M consecutive bits and the (5-M) consecutive bits is 1.

Further, in the (5-M) consecutive bits, a jth bit from a first upper bit to a lower bit is used to indicate a HARQ process number (j-1) corresponding to the first TB, the state of the jth bit is 1, the states of the other (4-M) bits are all 0, in the 6 bits, an ith bit from the first upper bit to the lower bit is used to indicate a value of the M, the state of the ith bit is 1, and M consecutive bits after the ith bit indicate NDIs of the M TBs in a bit mapping manner.

For case 4, according to M, the HARQ process number corresponding to the first TB, and the NDI of each of the M TBs, the network device uses, in the 6 bits in the DCI, consecutive (5-M) bits from the first high-order bit to the low-order bit to indicate the HARQ process number corresponding to the first TB, 1 bit with a state of 1 is used to indicate the value of M, and the M bits indicate the NDI of each of the M TBs, in the third way described above.

For the specific implementation process, reference may be made to the specific implementation process described above for case 3, and both the specific implementation processes schedule M TBs according to the above-described manner three, which is not described herein again.

Referring to table 7, an indication manner corresponding to the above case 4 is exemplarily shown, where the first TB is a first TB; as shown in table 7, when M is 4 and the HARQ process number corresponding to the first TB is 0, the network device sets 6 consecutive bits in the DCI to "11 × × to schedule 4 TBs; when M is 3 and the HARQ process number corresponding to the first TB is 0, the network device sets 6 consecutive bits in the DCI to "101 × to schedule 3 TBs; when M is 3 and the HARQ process number corresponding to the first TB is 1, the network device sets 6 consecutive bits in the DCI to "011 x" to schedule 3 TBs; when M is 2, and the HARQ process number corresponding to the first TB is 0, the network device sets 6 consecutive bits in the DCI to "1001 ×" to schedule 2 TBs; when M is 2, and the HARQ process number corresponding to the first TB is 1, the network device sets 6 consecutive bits in the DCI to "0101 ×" to schedule 2 TBs; when M is 2, and the HARQ process number corresponding to the first TB is 2, the network device sets 6 consecutive bits in the DCI to "0011 ×" to schedule 2 TBs; when M is 1 and the HARQ process number corresponding to the first TB is 0, the network device sets 6 consecutive bits in the DCI to "10001 ×" to schedule 1 TB; when M is 1 and the HARQ process number corresponding to the first TB is 1, the network device sets 6 consecutive bits in the DCI to "01001 ×" to schedule 1 TB; when M is 1 and the HARQ process number corresponding to the first TB is 2, the network device sets 6 consecutive bits in the DCI to "00101 ×" to schedule 1 TB; when M is 1 and the HARQ process number corresponding to the first TB is 3, the network device sets 6 consecutive bits in the DCI to "00011" to schedule 1 TB.

Table 7: indicating mode

In case 4, (5-M) consecutive bits are used to indicate the HARQ process number corresponding to the first TB, although limited to the predefined arrangement of M HARQ process numbers corresponding to M TBs, the (5-M) consecutive bits cannot indicate any combination of HARQ process numbers, for example, if the predefined arrangement of HARQ process numbers corresponding to M TBs is defined, when M is 2 and the HARQ process number corresponding to the first TB is 0, the described manner of case 2 cannot indicate the scheduling manners of 0,2, or 0,3, but the HARQ process number corresponding to the first TB is not fixed, that is, the HARQ process corresponding to the first TB can flexibly indicate, for example, when the first TB is the first TB and M is 2, the HARQ process number corresponding to the first TB may be any one of 0-2, and the case of DCI scheduling 2 TBs is 3, it can be seen that the described embodiment of case 2 guarantees the flexibility of DCI scheduling multiple TBs, meanwhile, the bit overhead of the DCI is also less.

Case 5: the method includes the steps that when the HARQ process number corresponding to the first TB is predefined to be 0, the maximum number of TBs which can be scheduled by DCI is predefined to be 8, and the value range of the HARQ process number is [0,7], the four methods are adopted to indicate the M TBs to be scheduled, according to the four methods, the DCI comprises 9 continuous bits, M continuous bits in the 9 continuous bits indicate NDI of the M TBs according to a bit mapping method, and (9-M) bits except the M continuous bits in the 9 continuous bits indicate the value of M.

Further, in the (9-M) consecutive bits, the state of the ith bit from the first upper bit to the lower bit is 1, the state of the bit before the ith bit is 0, i is (9-M), and the value of M is (9-i).

For case 5, the network device sets the state of the ith bit from the first high-order bit to the low-order bit in 9 consecutive bits in the DCI to 1 according to M and the NDI of each TB of the M TBs in the fourth manner, the state of a bit before the ith bit is set to 0, M consecutive bits after the ith bit indicate the NDI of each of the M TBs in a bit mapping manner, i is (9-M), in other words, the ith bit is the bit with the first state of 1 from the first high bit to the low bit in the 9 bits, in this way, the terminal device may determine, according to the 9 bits, a position of a first bit with a state of 1 from a first high-order bit to a low-order bit in the 9 bits, that is, an ith bit, and further determine that the value of M is (9-i).

In case 5, although the HARQ process number corresponding to the first TB is a fixed value, and the DCI has low flexibility in scheduling multiple TBs, the bit overhead of the DCI is the smallest, and if the DCI is sensitive to the bit overhead, the implementation corresponding to case 5 may be selected to schedule multiple TBs, so as to reduce the bit overhead of the DCI to the greatest extent.

Certainly, the network device indicates, to the terminal device, that the HARQ process number corresponding to one or more TBs scheduled by the DCI is not limited to the above five cases, for example, the maximum number of TBs that the DCI can schedule is 4, and when the value range of the HARQ process number is [0,3], M TBs may be scheduled according to the above two manners, that is, the bit overhead of the DCI is 7 bits, and 2 consecutive bits in the 7 bits are used to indicate the HARQ process number corresponding to the first TB.

In S33, that is, within the value range of the HARQ process number, the terminal device determines the HARQ process number corresponding to one or more transport blocks scheduled by the downlink control information. Since the network device may indicate M TBs scheduled by the DCI to the terminal device in at least one of the

preferable cases

1,2, 3,4, and 5, the terminal device needs to determine the M TBs according to information indicated by the network device. In the following, how the terminal device determines M TBs scheduled by the DCI scheduling DCI will be described in detail by taking case 1, case 2, case 3, case 4, and case 5 as examples.

For case 1: according to the first mode, the DCI comprises a first field, wherein the first field is used for determining the HARQ process number corresponding to each TB in one or two TBs, and when the first field indicates the HARQ process numbers corresponding to the two TBs, the HARQ process numbers corresponding to the two TBs can be discontinuous, and the DCI also indicates the NDI of each TB in a bit mapping mode.

Further, when 3 consecutive bits of the first field indicate one of 6 states, it is determined that the DCI schedules 2 TBs, HARQ process numbers corresponding to each of two TBs indicated by the 3 consecutive bits, and NDIs of the 2 TBs indicated by the 2 consecutive bits.

Further, the 3 consecutive bits indicate one of the remaining 2 states except the 6-state, and it is determined that 1 TB is scheduled by the DCI, an HARQ process number corresponding to one TB indicated by the 3 consecutive bits, and an NDI of the one TB indicated by a first bit from a first upper bit to a lower bit among the 2 consecutive bits.

Specifically, the terminal device may determine that the DCI schedules M TBs according to the foregoing manner, that is, 5 bits in the DCI are used to indicate the M TBs, 3 consecutive bits in the 5 bits are used to indicate an HARQ process number corresponding to each of the M TBs, and bits other than the 3 consecutive bits in the 5 bits are used to indicate an NDI of each of the M TBs, for example, please refer to table 2.2, 5 bits used to indicate the M TBs in the DCI are "011 x", the terminal device may determine that the HARQ process numbers corresponding to the M TBs of the DCI schedule are 1 and 2 respectively, and implicitly indicate that the value of M is 2, and then 2 bits after the 3 consecutive bits are used to indicate the NDI of each TB.

For the case 2, when the maximum number of TBs that can be scheduled by the DCI is 4, and the value range of the HARQ process number is [0,7], the foregoing manner indicates M scheduled TBs, where 1 is not less than M and not more than 4, so that 8 bits in the DCI need to be occupied, according to the foregoing second manner, the DCI indicates the HARQ process number corresponding to the first TB of the M TBs, the M HARQ process numbers corresponding to the M TBs are consecutive, the DCI includes a second field with 5 consecutive bits, the second field has M consecutive bits indicating the NDI of the M TBs in a bit mapping manner, bit states of (4-M) bits in the remaining (5-M) bits in the second field are all 0, and a bit state of one bit other than the (4-M) bits is 1.

Further, in the second field, a bit with a first bit state from a first upper bit to a lower bit being 1 in the HARQ process number corresponding to the first TB indicated by 3 consecutive bits of the DCI is an ith bit, and it is determined that the value of M is (5-i), HARQ process numbers corresponding to remaining (M-1) TBs except the first TB among the M TBs, and NDIs of the M TBs indicated by the M consecutive bits.

Specifically, the terminal device may determine that the DCI schedules the M TBs in the foregoing manner, that is, 8 bits in the DCI are used to indicate the M TBs, 3 consecutive bits in the 8 bits are used to indicate a HARQ process number corresponding to the first TB, a position of a bit with a first state of 1 from a first upper bit to a lower bit in 5 consecutive bits except the 3 consecutive bits indicates a value of M in the 5 consecutive bits, the first bit with the state of 1 is an ith bit, a bit state before the ith bit is 0, and bits after the ith bit are used to indicate an NDI of each TB in the M TBs. The terminal device only needs to determine 3 consecutive bits from the first high-order bit to the low-order bit in the 8 bits to determine the HARQ process number corresponding to the first TB, and the position of the first bit with the state of 1 in the 5 bits, that is, the ith bit, in the 5 bits except for the 3 consecutive bits can determine that the value of M is (5-i).

Further, the terminal device determines HARQ process numbers corresponding to the remaining (M-1) TBs except the first TB according to the HARQ process number corresponding to the first TB and M, and determines the NDI of each TB of the M TBs according to (4-i) bits after the ith bit.

For case 3: when the maximum number of TBs that the DCI can schedule is 8, and the value range of the HARQ process number is [0,7], the aforementioned third mode indicates M TBs to be scheduled, where M is greater than or equal to 1 and is less than or equal to 8, so that 10 bits of the DCI need to be occupied, according to the third mode, the DCI includes 10 bits, M consecutive bits among the 10 bits indicate NDIs of the M TBs in a bit mapping manner, a state of one bit among (9-M) consecutive bits except the M bits among the 10 bits is 1 and states of other (8-M) bits are 0, and a state of one bit except the M consecutive bits and the (9-M) consecutive bits among the 10 bits is 1.

Further, in the (9-M) consecutive bits, a bit with a first bit state from a first upper bit to a lower bit being 1 is a jth bit, and a bit with a second bit state from a first upper bit to a lower bit being 1 is an ith bit, and it is determined that the HARQ process number corresponding to the first TB is (j-1), the value of M is (10-i), HARQ process numbers corresponding to remaining (M-1) TBs except the first TB among the M TBs, and NDIs of the M TBs indicated by the M consecutive bits are (j-1).

Specifically, the terminal device may determine that the DCI schedules the M TBs in the foregoing manner, that is, 10 bits in the DCI are used to indicate the M TBs, where, of the 10 bits, a first bit with a state of 1 from a first upper bit to a lower bit is located in the 10 bits to indicate an HARQ process number corresponding to the first TB, a second bit with a state of 1 is located in the 10 bits to indicate a value of M, and bits following the second bit with a state of 1 are used to indicate an NDI of each TB of the M TBs; the terminal device only needs to determine that the state of the jth bit from the first high-order bit to the low-order bit in the 10 bits is 1, then it may determine that the HARQ process number corresponding to the first TB is (j-1), and determine that the second state from the first high-order bit to the low-order bit in the 10 bits is 1, that is, the ith bit, and determine that the value of M is (10-i).

Further, the terminal device determines HARQ process numbers corresponding to the remaining (M-1) TBs except the first TB according to the HARQ process number corresponding to the first TB and M, and determines the NDI of each of the M TBs according to (10-i) consecutive bits after the ith bit.

For case 4: according to the third mode, the DCI comprises 6 bits, wherein M continuous bits in the 6 bits indicate NDI of the M TBs according to a bit mapping mode, the state of one bit in (5-M) continuous bits except the M bits in the 6 bits is 1, the states of other (4-M) bits are all 0, and the states of one bit in the 6 bits except the M continuous bits and the (5-M) continuous bits are 1.

Further, a bit with a first bit state of 1 from a first high bit to a low bit in the (5-M) consecutive bits is a jth bit, a bit with a second bit state of 1 from a first high bit to a low bit in the 6 bits is an ith bit, it is determined that the HARQ process number corresponding to the first TB is (j-1), the value of M is (6-i), HARQ process numbers corresponding to remaining (M-1) TBs except the first TB in the M TBs are determined, and NDIs of the M TBs indicated by the M consecutive bits.

Specifically, the terminal device may determine that the DCI schedules the M TBs in the foregoing manner, that is, 6 consecutive bits in the DCI are used to indicate the M TBs, where, of the 6 bits, a first bit with a state of 1 from a first upper bit to a lower bit is located in the 6 consecutive bits to indicate an HARQ process number corresponding to the first TB, a second bit with a state of 1 is located in the 6 consecutive bits to indicate a value of M, and bits following the second bit with a state of 1 are used to indicate an NDI of each TB of the M TBs; the terminal device only needs to determine that the state of the jth bit from the first high bit to the low bit in the 6 consecutive bits is 1, and the state of the bit before the jth bit is 0, then it may determine that the HARQ process number corresponding to the first TB is (j-1), and determine that the bit of the second state from the first high bit to the low bit in the 6 bits is 1, that is, the ith bit, and determine that the value of M is (6-i).

Further, the terminal device determines HARQ process numbers corresponding to the remaining (M-1) TBs except the first TB according to the HARQ process number corresponding to the first TB and M, and determines the NDI of each of the M TBs according to consecutive (6-i) bits after the ith bit.

For case 5: when the HARQ process number corresponding to the first TB is predefined to be 0, the maximum number of TBs that the DCI can schedule is predefined to be 8, and the value range of the HARQ process number is [0,7], the terminal device determines M TBs scheduled by the DCI according to the aforementioned fourth mode, according to the fourth mode, the DCI includes 9 consecutive bits, where M consecutive bits of the 9 consecutive bits indicate the NDI of the M TBs in a bit mapping mode, and (9-M) bits of the 9 consecutive bits except the M consecutive bits indicate the value of M.

Specifically, 9 consecutive bits in the DCI are used to indicate M TBs, where, in the 9 bits, a first bit with a state of 1 from a first upper bit to a lower bit is used to indicate a value of M in a position of the 9 bits, and bits following the first bit with the state of 1 are used to indicate an NDI of each of the M TBs; the terminal device only needs to determine that the state of the ith bit from the first high-order bit to the low-order bit in the 9 bits is 1, and the state of the bit before the ith bit is 0, and then it can be determined that the value of M is (9-i).

Further, the terminal device determines HARQ process numbers corresponding to the remaining (M-1) TBs except the first TB according to a predefined HARQ process number corresponding to the first TB and M, and determines an NDI of each of the M TBs according to (9-i) bits after the ith bit.

In the embodiment of the application, terminal equipment receives first information from network equipment, wherein the first information indicates the number of the largest transmission blocks which can be scheduled by DCI; in the value range of the HARQ process numbers, multiple embodiments are adopted to determine HARQ process numbers corresponding to one or more transport blocks scheduled by DCI, in at least one embodiment, only the HARQ process number corresponding to the first TB and/or the value of M needs to be indicated in the DCI, and M HARQ process numbers corresponding to M TBs can be determined without indicating M HARQ process numbers in the DCI.

The following describes an apparatus for implementing the above method in the embodiment of the present application with reference to the drawings. Therefore, the above contents can be used in the subsequent embodiments, and the repeated contents are not repeated.

Fig. 4 is a schematic block diagram of a communication device 400 provided in an embodiment of the present application. Exemplarily, the communication apparatus 400 is, for example, a network device 400.

The network device 400 includes a transceiver module 410 and a processing module 420. Illustratively, the network device 400 may be a base station, or may be a chip applied in the network device or other combined devices, components, etc. having the functions of the network device. When the network device 400 is a network device, the transceiver module 410 may be a transceiver, may include an antenna, a radio frequency circuit, and the like, and the processing module 420 may be a processor, such as a baseband processor, which may include one or more Central Processing Units (CPUs). When the network device 400 is a component having the above-described terminal function, the transceiver module 410 may be a radio frequency unit, and the processing module 420 may be a processor, such as a baseband processor. When the network device 400 is a system-on-chip, the transceiver module 410 may be an input-output interface of the system-on-chip (e.g., a baseband chip), and the processing module may be a processor of the system-on-chip and may include one or more central processing units.

Among other things, the processing module 420 may be used to perform all operations performed by the network device in the embodiment shown in fig. 3 except transceiving operations, e.g., S32, and/or other processes for supporting the techniques described herein. The transceiving module 410 may be used to perform all transceiving operations performed by a network device in the embodiment illustrated in fig. 3, e.g., S31, and/or other processes to support the techniques described herein.

In addition, the transceiver module 410 may be a functional module that can perform both the transmitting operation and the receiving operation, for example, the transceiver module 410 may be used to perform all the transmitting operation and the receiving operation performed by the network device in the embodiment shown in fig. 3, for example, when the transmitting operation is performed, the transceiver module 410 may be considered as the transmitting module, and when the receiving operation is performed, the transceiver module 410 may be considered as the receiving module; alternatively, the transceiver module 410 may also be a general term for two functional modules, which are respectively a transmitting module and a receiving module, where the transmitting module is configured to complete a transmitting operation, for example, the transmitting module may be configured to perform all transmitting operations performed by the network device in the embodiment shown in fig. 3, and the receiving module is configured to complete a receiving operation, for example, the receiving module may be configured to perform all receiving operations performed by the network device in the embodiment shown in fig. 3.

For example, the transceiver module 410 is configured to send first information to a terminal device, where the first information indicates a maximum number L of transport blocks that can be scheduled by downlink control information, where L is a positive integer;

a processing module 420, configured to indicate, to the terminal device, HARQ process numbers corresponding to one or more transport blocks scheduled by downlink control information in a value range of a HARQ process number;

wherein, the L is 2, the value range of the HARQ process number is [0,3], the downlink control information includes a first field, the first field indicates the HARQ process number corresponding to each of the one or two transport blocks, and when the first field indicates the HARQ process numbers corresponding to two transport blocks, the HARQ process numbers corresponding to the two transport blocks may be discontinuous, and the downlink control information further indicates the NDI of each transport block in a bit mapping manner; and/or the presence of a gas in the gas,

As an optional implementation manner, where L is 2, a value range of the HARQ process number is [0,3], the first field indicates, using 3 consecutive bits, the HARQ process number corresponding to each of the one or two transport blocks, where 6 states of the 3 consecutive bits are used to indicate the HARQ process number corresponding to each transport block when the downlink control information schedules the two transport blocks, and the downlink control information indicates, using 2 consecutive bits, an NDI of each of the two transport blocks; and/or the presence of a gas in the gas,

As an optional implementation manner, the L is 4, the value range of the HARQ process number is [0,7], the HARQ process number corresponding to the first transport block is indicated by 3 consecutive bits in the downlink control information, in the second field, the state of the ith bit from the first high-order bit to the low-order bit is 1, which is used to indicate the value of M, the i is (5-M), the states of the first (4-M) bits of the ith bit are all 0, and M consecutive bits after the ith bit indicate the NDI of the M transport blocks in a bit mapping manner.

As an optional implementation manner, where L is 8, the value range of the HARQ process number is [0,7], a jth bit from a first upper bit to a lower bit in the (9-M) consecutive bits is used to indicate a HARQ process number (j-1) corresponding to the first transport block, the state of the jth bit is 1, the states of the other (8-M) bits are all 0, an ith bit from the first upper bit to the lower bit in the 10 bits is used to indicate the value of M, the state of the ith bit is 1, and M consecutive bits after the ith bit indicate the NDI of the M transport blocks in a bit mapping manner.

As an optional implementation manner, where L is 4, the HARQ value range is [0,3], a jth bit from a first upper bit to a lower bit in the (5-M) consecutive bits is used to indicate an HARQ process number (j-1) corresponding to the first transport block, the state of the jth bit is 1, the states of the other (4-M) bits are all 0, an ith bit from the first upper bit to the lower bit in the 6 bits is used to indicate the value of M, the state of the ith bit is 1, and M consecutive bits after the ith bit indicate NDI of the M transport blocks in a bit mapping manner.

As an optional implementation manner, the first information is carried by radio resource control signaling, or medium access control signaling, or physical layer signaling.

It should be understood that the processing module 420 in the embodiments of the present application may be implemented by a processor or a processor-related circuit component, and the transceiver module 410 may be implemented by a transceiver or a transceiver-related circuit component.

As shown in fig. 5, an embodiment of the present application further provides a communication apparatus 500. Illustratively, the communication device 500 is, for example, a network device 500. Illustratively, the network device 500 may be a communication device, such as a base station, or may also be a system-on-chip or the like. Network device 500 includes a processor 510. Optionally, a memory 520 may also be included. Optionally, a transceiver 530 may also be included. Wherein the memory 520 stores therein computer instructions or programs, the processor 510 may execute the computer instructions or programs stored in the memory 520. When the computer instructions or programs stored in the memory 520 are executed, the processor 510 is configured to perform the operations performed by the processing module 420 in the above embodiments, and the transceiver 530 is configured to perform the operations performed by the transceiver module 410 in the above embodiments. Alternatively, the network device 500 may not include the memory 520, for example, the memory is located outside the network device 500, and when the computer instructions or the program stored in the external memory are executed, the processor 510 is configured to perform the operations performed by the processing module 420 in the above-described embodiment, and the transceiver 530 is configured to perform the operations performed by the transceiver module 410 in the above-described embodiment.

Where the transceiver 530 may be a functional unit that can perform both transmitting and receiving operations, for example, the transceiver 530 may be used to perform all transmitting and receiving operations performed by the network device in the embodiment shown in fig. 3, for example, when a transmitting operation is performed, the transceiver 530 may be considered as a transmitter, and when a receiving operation is performed, the transceiver 530 may be considered as a receiver; alternatively, the transceiver 530 may be a general term for two functional units, namely a transmitter and a receiver, where the transmitter is used to perform a transmitting operation, for example, the transmitter may be used to perform all transmitting operations performed by the network device in the embodiment shown in fig. 3, and the receiver is used to perform a receiving operation, for example, the receiver may be used to perform all receiving operations performed by the network device in the embodiment shown in fig. 3.

In addition, if the communication apparatus 500 is a chip system, the transceiver 530 may also be implemented by a communication interface of the chip system, and the communication interface is connected to a radio frequency transceiving component in the communication device to implement transceiving of information through the radio frequency transceiving component. The communication interface may be a functional unit that can perform both the sending operation and the receiving operation, for example, the communication interface may be used to perform all the sending and receiving operations performed by the network device in the embodiment shown in fig. 3, for example, the communication interface may be considered as the sending interface when the sending operation is performed, and the communication interface may be considered as the receiving interface when the receiving operation is performed; alternatively, the communication interface may also be a general term of two functional units, which are respectively a transmitting interface and a receiving interface, where the transmitting interface is used to complete the transmitting operation, for example, the transmitting interface may be used to perform all the transmitting operations performed by the network device in the embodiment shown in fig. 3, and the receiving interface is used to complete the receiving operation, for example, the receiving interface may be used to perform all the receiving operations performed by the network device in the embodiment shown in fig. 3.

It should be understood that the network device 400 or the network device 500 according to the embodiment of the present application may implement the functions of the network device in the embodiment shown in fig. 3, and the operations and/or functions of the respective modules in the network device 400 or the network device 500 are respectively for implementing the corresponding flows in the embodiment shown in fig. 3, and 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. Exemplarily, the communication apparatus 600 is, for example, a terminal device 600.

The terminal device 600 includes a transceiver module 610 and a processing module 620. Illustratively, the terminal device 600 may be a chip applied in the terminal device or other combined devices, components, etc. having the above-mentioned terminal device functions. When the terminal device 600 is a terminal device, the transceiver module 610 may be a transceiver, and may include an antenna, a radio frequency circuit, and the like, and the processing module 620 may be a processor, such as a baseband processor, and one or more Central Processing Units (CPUs) may be included in the baseband processor. When the terminal device 600 is a component having the above terminal function, the transceiver module 610 may be a radio frequency unit, and the processing module 620 may be a processor, such as a baseband processor. When the terminal device 600 is a chip system, the transceiver module 610 may be an input/output interface of the chip system (e.g., a baseband chip), and the processing module may be a processor of the chip system and may include one or more central processing units.

Among other things, the processing module 620 may be used to perform all operations performed by the terminal device in the embodiment shown in fig. 3 except transceiving operations, e.g., S31, and/or other processes for supporting the techniques described herein. The transceiving module 610 may be configured to perform all transceiving operations performed by the terminal device in the embodiment illustrated in fig. 3, e.g., S33, and/or other processes to support the techniques described herein.

In addition, the transceiver module 610 may be a functional module that can perform both the transmitting operation and the receiving operation, for example, the transceiver module 610 may be used to perform all the transmitting operation and the receiving operation performed by the terminal device in the embodiment shown in fig. 3, for example, when the transmitting operation is performed, the transceiver module 610 may be considered as a transmitting module, and when the receiving operation is performed, the transceiver module 610 may be considered as a receiving module; alternatively, the transceiver module 610 may also be a general term for two functional modules, which are respectively a transmitting module and a receiving module, where the transmitting module is configured to complete a transmitting operation, for example, the transmitting module may be configured to perform all transmitting operations performed by the terminal device in the embodiment shown in fig. 3, and the receiving module is configured to complete a receiving operation, for example, the receiving module may be configured to perform all receiving operations performed by the terminal device in the embodiment shown in fig. 3.

For example, the transceiver module 610 is configured to receive first information from a network device, where the first information indicates a maximum number L of transport blocks that can be scheduled by downlink control information, where L is a positive integer;

a processing module 620, configured to determine HARQ process numbers corresponding to one or more transport blocks scheduled by the downlink control information in a value range of a HARQ process number;

wherein, the L is 2, the value range of the HARQ process number is [0,3], the downlink control information includes a first field, the first field is used to determine the HARQ process number corresponding to each of the one or two transport blocks, and when the first field indicates the HARQ process numbers corresponding to two transport blocks, the HARQ process numbers corresponding to the two transport blocks may be discontinuous, and the downlink control information further indicates the NDI of each transport block in a bit mapping manner; and/or the presence of a gas in the gas,

As an optional implementation manner, the processing module 620 is specifically configured to:

when 3 consecutive bits of the first field in the downlink control information indicate one of 6 states, determining that the downlink control information schedules 2 transport blocks, an HARQ process number corresponding to each of two transport blocks indicated by the 3 consecutive bits, and an NDI of the 2 transport blocks indicated by the 2 consecutive bits; and/or the presence of a gas in the gas,

the L is 8, the HARQ value range is [0,7], among the (9-M) consecutive bits, a bit with a first bit state from a first higher bit to a lower bit being 1 is a jth bit, among the 10 bits, a bit with a second bit state from a first higher bit to a lower bit being 1 is an ith bit, it is determined that the HARQ process number corresponding to the first transport block is (j-1), the value of M is (10-i), HARQ process numbers corresponding to remaining (M-1) transport blocks except the first transport block among the M transport blocks, and NDIs of the M transport blocks indicated by the M consecutive bits.

It should be understood that the processing module 620 in the embodiments of the present application may be implemented by a processor or a processor-related circuit component, and the transceiver module 610 may be implemented by a transceiver or a transceiver-related circuit component.

As shown in fig. 7, an embodiment of the present application further provides a communication apparatus 700. Exemplarily, the communication apparatus 700 is, for example, a terminal device 700. Illustratively, the terminal device 700 may be a communication device, such as a terminal device, or may also be a system-on-chip or the like. The terminal device 700 comprises a processor 710. Optionally, a memory 720 may also be included. Optionally, a transceiver 730 may also be included. Wherein the memory 720 stores computer instructions or programs, the processor 710 may execute the computer instructions or programs stored in the memory 720. When the computer instructions or programs stored in the memory 720 are executed, the processor 710 is configured to perform the operations performed by the processing module 620 in the above embodiments, and the transceiver 730 is configured to perform the operations performed by the transceiver module 610 in the above embodiments. Alternatively, the terminal device 700 may not include the memory 720, for example, the memory is located outside the terminal device 700, and when the computer instructions or the program stored in the external memory is executed, the processor 710 is configured to perform the operations performed by the processing module 620 in the above-described embodiment, and the transceiver 730 is configured to perform the operations performed by the transceiver module 610 in the above-described embodiment.

The transceiver 730 may be a functional unit that can perform both transmission and reception operations, for example, the transceiver 730 may be used to perform all transmission and reception operations performed by the terminal device in the embodiment shown in fig. 3, for example, when performing transmission operation, the transceiver 730 may be considered as a transmitter, and when performing reception operation, the transceiver 730 may be considered as a receiver; alternatively, the transceiver 730 may also be a general term for two functional units, which are respectively a transmitter and a receiver, where the transmitter is configured to perform a transmitting operation, for example, the transmitter may be configured to perform all transmitting operations performed by the terminal device in the embodiment shown in fig. 3, and the receiver is configured to perform a receiving operation, for example, the receiver may be configured to perform all receiving operations performed by the terminal device in the embodiment shown in fig. 3.

In addition, if the communication apparatus 700 is a chip system, the transceiver 730 can also be implemented by a communication interface of the chip system, and the communication interface is connected to a radio frequency transceiver component in the communication device to implement transceiving of information through the radio frequency transceiver component. The communication interface may be a functional unit that can perform both the transmission operation and the reception operation, for example, the communication interface may be used to perform all the transmission operation and the reception operation performed by the terminal device in the embodiment shown in fig. 3, for example, when the transmission operation is performed, the communication interface may be regarded as the transmission interface, and when the reception operation is performed, the communication interface may be regarded as the reception interface; alternatively, the communication interface may also be a general term of two functional units, which are respectively a transmitting interface and a receiving interface, where the transmitting interface is used to complete the transmitting operation, for example, the transmitting interface may be used to perform all the transmitting operations performed by the terminal device in the embodiment shown in fig. 3, and the receiving interface is used to complete the receiving operation, for example, the receiving interface may be used to perform all the receiving operations performed by the terminal device in the embodiment shown in fig. 3.

It should be understood that the terminal device 600 or the terminal device 700 according to the embodiment of the present application may implement the function of the terminal device in the embodiment shown in fig. 3, and the operation and/or the function of each module in the terminal device 600 or the terminal device 700 are respectively for implementing the corresponding flow in the embodiment shown in fig. 3, and are not described herein again for brevity.

An embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium is used to store a computer program, and when the computer program is executed by a computer, the computer may implement the process related to the network device in the embodiment shown in fig. 3 and provided by the foregoing method embodiment.

An embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a computer, the computer may implement the process related to the terminal device in the embodiment shown in fig. 3 and provided by the foregoing method embodiment.

An embodiment of the present application further provides a computer program product, where the computer program is used to store a computer program, and when the computer program is executed by a computer, the computer may implement the process related to the network device in the embodiment shown in fig. 3 and provided by the foregoing method embodiment.

An embodiment of the present application further provides a computer program product, where the computer program is used to store a computer program, and when the computer program is executed by a computer, the computer may implement the process related to the terminal device in the embodiment shown in fig. 3 and provided by the foregoing method embodiment.

It should be understood that the processor mentioned in the embodiments of the present application may be a CPU, and may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It will also be appreciated that the memory referred to in the embodiments of the application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

It should be noted that when the processor is a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, the memory (memory module) is integrated in the processor.

It should be noted that the memory described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

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 can be clearly understood by those skilled in the art that, for convenience and simplicity 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 position, or may be distributed on multiple 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: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

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

Claims

A method of communication, comprising:

sending first information to terminal equipment, wherein the first information indicates the maximum number L of transmission blocks which can be scheduled by downlink control information, and the L is a positive integer;

indicating HARQ process numbers corresponding to one or more transmission blocks scheduled by downlink control information to the terminal equipment within the value range of the HARQ process numbers;

wherein, the L is 2, the value range of the HARQ process number is [0,3], the downlink control information includes a first field, the first field indicates the HARQ process number corresponding to each of the one or two transport blocks, and when the first field indicates the HARQ process numbers corresponding to two transport blocks, the HARQ process numbers corresponding to the two transport blocks may be discontinuous, and the downlink control information further indicates a new data indication NDI of each transport block in a bit mapping manner; and/or the presence of a gas in the gas,

the L is 4, the value range of the HARQ process number is [0,7], the downlink control information schedules M transport blocks, where M is a positive integer and M is greater than or equal to 1 and less than or equal to 4, the downlink control information indicates the HARQ process number corresponding to the first transport block in the M transport blocks, the M HARQ process numbers corresponding to the M transport blocks are consecutive, the downlink control information includes a second field with 5 consecutive bits, M consecutive bits in the second field indicate NDI of the M transport blocks in a bit mapping manner, bit states of (4-M) bits in the remaining (5-M) bits in the second field are all 0, and bit states of one bit other than the (4-M) bits are 1; and/or the presence of a gas in the gas,

the L is 8, the value range of the HARQ process number is [0,7], the downlink control information includes 10 bits, M consecutive bits of the 10 bits indicate the NDI of the M transport blocks in a bit mapping manner, one bit of (9-M) consecutive bits of the 10 bits except the M bits has a state of 1 and the other (8-M) bits have states of 0, one bit of the 10 bits except the M consecutive bits except the M bits has a state of 1, where M is a positive integer and M is greater than or equal to 1 and less than or equal to 8; and/or the presence of a gas in the gas,

the L is 4, the value range of the HARQ process number is [0,3], the downlink control information includes 6 bits, M consecutive bits of the 6 bits indicate the NDI of the M transport blocks in a bit mapping manner, one bit of (5-M) consecutive bits of the 6 bits except the M bits has a state of 1 and the other (4-M) bits have states of 0, one bit of the 6 bits except the M consecutive bits and the (5-M) consecutive bits has a state of 1, where M is a positive integer and M is greater than or equal to 1 and less than or equal to 4.
The method according to claim 1, wherein L ═ 2, the HARQ process number has a value range of [0,3], the first field indicates the HARQ process number corresponding to each of the one or two transport blocks using 3 consecutive bits, the 6 states of the 3 consecutive bits are used to indicate the HARQ process number corresponding to each of the two transport blocks when the downlink control information schedules the two transport blocks, and the downlink control information indicates the NDI of each of the two transport blocks using 2 consecutive bits; and/or the presence of a gas in the gas,

and when the remaining 2 states of the 3 continuous bits except the 6 states are used for indicating that the downlink control information schedules the transport block, the HARQ process number corresponding to the transport block, and one bit in the downlink control information indicates the NDI of the transport block.
The method according to claim 1, wherein L is 4, the value range of the HARQ process number is [0,7], the HARQ process number corresponding to the first transport block is indicated by 3 consecutive bits in the downlink control information, a state of an ith bit from a first high-order bit to a low-order bit in the second field is 1 for indicating a value of M, i is (5-M), states of first (4-M) bits of the ith bit are all 0, and M consecutive bits after the ith bit indicate NDI of the M transport blocks in a bit mapping manner.
The method according to claim 1, wherein L is 8, the HARQ process number has a value range of [0,7], and a jth bit from a first higher bit to a lower bit in the (9-M) consecutive bits is used to indicate the HARQ process number (j-1) corresponding to the first transport block, the jth bit has a state of 1, the other (8-M) bits have states of 0, an ith bit from the first higher bit to the lower bit in the 10 bits is used to indicate the value of M, the ith bit has a state of 1, and M consecutive bits following the ith bit indicate the NDI of the M transport blocks in a bit mapping manner.
The method according to claim 1, wherein L ═ 4, the HARQ value range is [0,3], and in the (5-M) consecutive bits, a jth bit from a first higher bit to a lower bit is used to indicate the HARQ process number (j-1) corresponding to the first transport block, the state of the jth bit is 1, the states of the other (4-M) bits are all 0, in the 6 bits, an ith bit from the first higher bit to the lower bit is used to indicate the value of M, the state of the ith bit is 1, and M consecutive bits after the ith bit indicate the NDI of the M transport blocks in a bit mapping manner.
The method according to any of claims 1 to 5, wherein the first information is carried by radio resource control signaling, or medium access control signaling, or physical layer signaling.
A method of communication, comprising:

receiving first information from a network device, wherein the first information indicates the maximum number L of transmission blocks which can be scheduled by downlink control information, and L is a positive integer;

determining HARQ process numbers corresponding to one or more transmission blocks scheduled by the downlink control information in a value range of the HARQ process numbers;

wherein, the L is 2, the value range of the HARQ process number is [0,3], the downlink control information includes a first field, the first field is used to determine the HARQ process number corresponding to each of the one or two transport blocks, and when the first field indicates the HARQ process numbers corresponding to two transport blocks, the HARQ process numbers corresponding to the two transport blocks may be discontinuous, and the downlink control information further indicates a new data indication NDI of each transport block in a bit mapping manner; and/or the presence of a gas in the gas,

the L is 4, the value range of the HARQ process number is [0,7], the downlink control information schedules M transport blocks, where M is a positive integer and M is greater than or equal to 1 and less than or equal to 4, the downlink control information indicates the HARQ process number corresponding to the first transport block in the M transport blocks, the M HARQ process numbers corresponding to the M transport blocks are consecutive, the downlink control information includes a second field with 5 consecutive bits, M consecutive bits in the second field indicate NDI of the M transport blocks in a bit mapping manner, bit states of (4-M) bits in the remaining (5-M) bits in the second field are all 0, and bit states of one bit other than the (4-M) bits are 1; and/or the presence of a gas in the gas,

the L is 8, the value range of the HARQ process number is [0,7], the downlink control information includes 10 bits, M consecutive bits of the 10 bits indicate the NDI of the M transport blocks in a bit mapping manner, one bit of (9-M) consecutive bits of the 10 bits except the M bits has a state of 1 and the other (8-M) bits have states of 0, one bit of the 10 bits except the M consecutive bits except the M bits has a state of 1, where M is a positive integer and M is greater than or equal to 1 and less than or equal to 8; and/or the presence of a gas in the gas,

the L is 4, the value range of the HARQ process number is [0,3], the downlink control information includes 6 bits, M consecutive bits of the 6 bits indicate the NDI of the M transport blocks in a bit mapping manner, one bit of (5-M) consecutive bits of the 6 bits except the M bits has a state of 1 and the other (4-M) bits have states of 0, one bit of the 6 bits except the M consecutive bits and the (5-M) consecutive bits has a state of 1, where M is a positive integer and M is greater than or equal to 1 and less than or equal to 4.
The method of claim 7, wherein the determining HARQ process numbers corresponding to one or more transport blocks scheduled by the downlink control information within a value range of a hybrid automatic repeat request HARQ process number comprises:

when 3 consecutive bits of the first field in the downlink control information indicate one of 6 states, determining that the downlink control information schedules 2 transport blocks, an HARQ process number corresponding to each of two transport blocks indicated by the 3 consecutive bits, and an NDI of the 2 transport blocks indicated by the 2 consecutive bits; and/or the presence of a gas in the gas,

the 3 consecutive bits indicate one of the remaining 2 states except the 6 states, and it is determined that the downlink control information schedules 1 transport block, an HARQ process number corresponding to one transport block indicated by the 3 consecutive bits, and an NDI of the one transport block indicated by a first bit from a first upper bit to a lower bit among the 2 consecutive bits.
The method of claim 7, wherein the determining HARQ process numbers corresponding to one or more transport blocks scheduled by the downlink control information within a value range of a hybrid automatic repeat request HARQ process number comprises:

the L is 4, the HARQ value range is [0,7], the HARQ process number corresponding to the first transport block indicated by 3 consecutive bits in the downlink control information, a bit in the second field, whose first bit state is 1 from a first upper bit to a lower bit, is an ith bit, the value of M is determined to be (5-i), HARQ process numbers corresponding to remaining (M-1) transport blocks except the first transport block in the M transport blocks, and NDIs of the M transport blocks indicated by the M consecutive bits.
The method of claim 7, wherein the determining HARQ process numbers corresponding to one or more transport blocks scheduled by the downlink control information within a value range of a hybrid automatic repeat request HARQ process number comprises:

the L is 8, the HARQ value range is [0,7], among the (9-M) consecutive bits, a bit with a first bit state from a first higher bit to a lower bit being 1 is a jth bit, among the 10 bits, a bit with a second bit state from a first higher bit to a lower bit being 1 is an ith bit, it is determined that the HARQ process number corresponding to the first transport block is (j-1), the value of M is (10-i), HARQ process numbers corresponding to remaining (M-1) transport blocks except the first transport block among the M transport blocks, and NDIs of the M transport blocks indicated by the M consecutive bits.
The method of claim 7, wherein the determining HARQ process numbers corresponding to one or more transport blocks scheduled by the downlink control information within a value range of a hybrid automatic repeat request HARQ process number comprises:

the L is 4, the HARQ value range is [0,3], a bit with a first bit state from a first higher bit to a lower bit in the (5-M) consecutive bits being 1 is a jth bit, a bit with a second bit state from a first higher bit to a lower bit in the 6 bits being 1 is an ith bit, it is determined that the HARQ process number corresponding to the first transport block is (j-1), the value of M is (6-i), HARQ process numbers corresponding to remaining (M-1) transport blocks except the first transport block in the M transport blocks, and NDIs of the M transport blocks indicated by the M consecutive bits.
The method according to any of claims 7-11, wherein the first information is carried by radio resource control signaling, or medium access control signaling, or physical layer signaling.
A communications apparatus, comprising:

a transceiver module, configured to send first information to a terminal device, where the first information indicates a maximum number L of transport blocks that can be scheduled by downlink control information, where L is a positive integer;

a processing module, configured to indicate, to the terminal device, HARQ process numbers corresponding to one or more transport blocks scheduled by downlink control information in a value range of a hybrid automatic repeat request HARQ process number;

wherein, the L is 2, the value range of the HARQ process number is [0,3], the downlink control information includes a first field, the first field indicates the HARQ process number corresponding to each of the one or two transport blocks, and when the first field indicates the HARQ process numbers corresponding to two transport blocks, the HARQ process numbers corresponding to the two transport blocks may be discontinuous, and the downlink control information further indicates a new data indication NDI of each transport block in a bit mapping manner; and/or the presence of a gas in the gas,

the L is 4, the value range of the HARQ process number is [0,7], the downlink control information schedules M transport blocks, where M is a positive integer and M is greater than or equal to 1 and less than or equal to 4, the downlink control information indicates the HARQ process number corresponding to the first transport block in the M transport blocks, the M HARQ process numbers corresponding to the M transport blocks are consecutive, the downlink control information includes a second field with 5 consecutive bits, M consecutive bits in the second field indicate NDI of the M transport blocks in a bit mapping manner, bit states of (4-M) bits in the remaining (5-M) bits in the second field are all 0, and bit states of one bit other than the (4-M) bits are 1; and/or the presence of a gas in the gas,

the L is 8, the value range of the HARQ process number is [0,7], the downlink control information includes 10 bits, M consecutive bits of the 10 bits indicate the NDI of the M transport blocks in a bit mapping manner, one bit of (9-M) consecutive bits of the 10 bits except the M bits has a state of 1 and the other (8-M) bits have states of 0, one bit of the 10 bits except the M consecutive bits except the M bits has a state of 1, where M is a positive integer and M is greater than or equal to 1 and less than or equal to 8; and/or the presence of a gas in the gas,

the L is 4, the value range of the HARQ process number is [0,3], the downlink control information includes 6 bits, M consecutive bits of the 6 bits indicate the NDI of the M transport blocks in a bit mapping manner, one bit of (5-M) consecutive bits of the 6 bits except the M bits has a state of 1 and the other (4-M) bits have states of 0, one bit of the 6 bits except the M consecutive bits and the (5-M) consecutive bits has a state of 1, where M is a positive integer and M is greater than or equal to 1 and less than or equal to 4.
The communications apparatus according to claim 13, wherein L ═ 2, the HARQ process number has a value range of [0,3], the first field indicates, with 3 consecutive bits, the HARQ process number corresponding to each of the one or two transport blocks, the 6 states of the 3 consecutive bits are used to indicate the HARQ process number corresponding to each of the two transport blocks when the downlink control information schedules the two transport blocks, and the downlink control information indicates, with 2 consecutive bits, the NDI of each of the two transport blocks; and/or the presence of a gas in the gas,

and when the remaining 2 states of the 3 continuous bits except the 6 states are used for indicating that the downlink control information schedules the transport block, the HARQ process number corresponding to the transport block, and one bit in the downlink control information indicates the NDI of the transport block.
The communications apparatus according to claim 13, wherein L is 4, the value range of the HARQ process number is [0,7], the downlink control information indicates the HARQ process number corresponding to the first transport block by using 3 consecutive bits, in the second field, a state of an ith bit from a first upper bit to a lower bit is 1 for indicating a value of M, i is (5-M), states of first (4-M) bits of the ith bit are all 0, and M consecutive bits after the ith bit indicate NDIs of the M transport blocks in a bit mapping manner.
The communications apparatus according to claim 13, wherein L ═ 8, the value range of the HARQ process number is [0,7], and in the (9-M) consecutive bits, a jth bit from a first higher bit to a lower bit is used to indicate the HARQ process number (j-1) corresponding to the first transport block, the state of the jth bit is 1, the states of the other (8-M) bits are all 0, in the 10 bits, an ith bit from a first higher bit to a lower bit is used to indicate the value of M, the state of the ith bit is 1, and M consecutive bits following the ith bit indicate the NDI of the M transport blocks in a bit mapping manner.
The communications apparatus according to claim 13, wherein L ═ 4, the HARQ value range is [0,3], and in the (5-M) consecutive bits, a jth bit from a first higher bit to a lower bit is used to indicate a HARQ process number (j-1) corresponding to the first transport block, the state of the jth bit is 1, the states of the other (4-M) bits are all 0, in the 6 bits, an ith bit from the first higher bit to the lower bit is used to indicate the value of M, the state of the ith bit is 1, and M consecutive bits after the ith bit indicate the NDI of the M transport blocks in a bit mapping manner.
The communication apparatus according to any of claims 13 to 17, wherein the first information is carried by radio resource control signaling, or medium access control signaling, or physical layer signaling.
A communications apparatus, comprising:

a transceiver module, configured to receive first information from a network device, where the first information indicates a maximum number L of transport blocks that can be scheduled by downlink control information, where L is a positive integer;

a processing module, configured to determine HARQ process numbers corresponding to one or more transport blocks scheduled by the downlink control information within a value range of a HARQ process number;

wherein, the L is 2, the value range of the HARQ process number is [0,3], the downlink control information includes a first field, the first field is used to determine the HARQ process number corresponding to each of the one or two transport blocks, and when the first field indicates the HARQ process numbers corresponding to two transport blocks, the HARQ process numbers corresponding to the two transport blocks may be discontinuous, and the downlink control information further indicates a new data indication NDI of each transport block in a bit mapping manner; and/or the presence of a gas in the gas,

the L is 4, the value range of the HARQ process number is [0,7], the downlink control information schedules M transport blocks, where M is a positive integer and M is greater than or equal to 1 and less than or equal to 4, the downlink control information indicates the HARQ process number corresponding to the first transport block in the M transport blocks, the M HARQ process numbers corresponding to the M transport blocks are consecutive, the downlink control information includes a second field with 5 consecutive bits, M consecutive bits in the second field indicate NDI of the M transport blocks in a bit mapping manner, bit states of (4-M) bits in the remaining (5-M) bits in the second field are all 0, and bit states of one bit other than the (4-M) bits are 1; and/or the presence of a gas in the gas,

the L is 8, the value range of the HARQ process number is [0,7], the downlink control information includes 10 bits, M consecutive bits of the 10 bits indicate the NDI of the M transport blocks in a bit mapping manner, one bit of (9-M) consecutive bits of the 10 bits except the M bits has a state of 1 and the other (8-M) bits have states of 0, one bit of the 10 bits except the M consecutive bits except the M bits has a state of 1, where M is a positive integer and M is greater than or equal to 1 and less than or equal to 8; and/or the presence of a gas in the gas,

the L is 4, the value range of the HARQ process number is [0,3], the downlink control information includes 6 bits, M consecutive bits of the 6 bits indicate the NDI of the M transport blocks in a bit mapping manner, one bit of (5-M) consecutive bits of the 6 bits except the M bits has a state of 1 and the other (4-M) bits have states of 0, one bit of the 6 bits except the M consecutive bits and the (5-M) consecutive bits has a state of 1, where M is a positive integer and M is greater than or equal to 1 and less than or equal to 4.
The communications apparatus of claim 19, wherein the processing module is specifically configured to:

when 3 consecutive bits of the first field in the downlink control information indicate one of 6 states, determining that the downlink control information schedules 2 transport blocks, an HARQ process number corresponding to each of two transport blocks indicated by the 3 consecutive bits, and an NDI of the 2 transport blocks indicated by the 2 consecutive bits; and/or the presence of a gas in the gas,

the 3 consecutive bits indicate one of the remaining 2 states except the 6 states, and it is determined that the downlink control information schedules 1 transport block, an HARQ process number corresponding to one transport block indicated by the 3 consecutive bits, and an NDI of the one transport block indicated by a first bit from a first upper bit to a lower bit among the 2 consecutive bits.
The communications apparatus of claim 19, wherein the processing module is specifically configured to:

the L is 4, the HARQ value range is [0,7], an HARQ process number corresponding to the first transport block indicated by 3 consecutive bits in the downlink control information, an ith bit in the second field having a first bit state from a first upper bit to a lower bit of 1, and determining that the value of M is (5-i), HARQ process numbers corresponding to remaining (M-1) transport blocks except the first transport block in the M transport blocks, and NDIs of the M transport blocks indicated by the M consecutive bits.
The communications apparatus of claim 19, wherein the processing module is specifically configured to:

the L is 8, the HARQ value range is [0,7], among the (9-M) consecutive bits, a bit with a first bit state from a first higher bit to a lower bit being 1 is a jth bit, among the 10 bits, a bit with a second bit state from a first higher bit to a lower bit being 1 is an ith bit, it is determined that the HARQ process number corresponding to the first transport block is (j-1), the value of M is (10-i), HARQ process numbers corresponding to remaining (M-1) transport blocks except the first transport block among the M transport blocks, and NDIs of the M transport blocks indicated by the M consecutive bits.
The communications apparatus of claim 19, wherein the processing module is specifically configured to:

the L is 4, the HARQ value range is [0,3], a bit with a first bit state from a first higher bit to a lower bit in the (5-M) consecutive bits being 1 is a jth bit, a bit with a second bit state from a first higher bit to a lower bit in the 6 bits being 1 is an ith bit, it is determined that the HARQ process number corresponding to the first transport block is (j-1), the value of M is (6-i), HARQ process numbers corresponding to remaining (M-1) transport blocks except the first transport block in the M transport blocks, and NDIs of the M transport blocks indicated by the M consecutive bits.
The communication apparatus according to any of claims 19 to 23, wherein the first information is carried by radio resource control signaling, or medium access control signaling, or physical layer signaling.
A computer-readable storage medium, on which a program is stored, characterized in that the computer-readable storage medium stores a computer program which, when run on a computer, causes the computer to carry out the method according to any one of claims 1-6.
A computer-readable storage medium, on which a program is stored, characterized in that the computer-readable storage medium stores a computer program which, when run on a computer, causes the computer to carry out the method according to any one of claims 7-12.
A computer program, characterized in that it implements the method of any one of claims 1 to 6 when executed by a computer.
A computer program, characterized in that it implements the method of any of claims 7-12 when executed by a computer.
A communications apparatus, comprising: a processor and a memory, the memory storing instructions that, when read and executed by the processor, cause the communication device to perform the method of any of claims 1-6.
A communications apparatus, comprising: a processor and a memory, the memory storing instructions that, when read and executed by the processor, cause the communication device to perform the method of any of claims 7-12.