WO2022027662A1

WO2022027662A1 - Data scheduling method, apparatus, and system

Info

Publication number: WO2022027662A1
Application number: PCT/CN2020/107974
Authority: WO
Inventors: 苏俞婉; 李军; 杨育波; 罗之虎; 金哲
Original assignee: 华为技术有限公司
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2022-02-10

Abstract

Embodiments of the present application provide a data scheduling method, apparatus, and system, applied to a system for activating N hybrid automatic repeat request (HARQ) processes, capable of improving resource utilization, and further capable of saving signaling overhead and reducing implementation complexity of a network device and a terminal device. The method comprises: after determining a first scheduling delay, the network device sends a first field to the terminal device, the first field being used for indicating the first scheduling delay; and the terminal device receives the first field and determines the first scheduling delay according to the first field, the first scheduling delay being the delay of downlink control information corresponding to a first HARQ process scheduling first data, the first HARQ process being any HARQ process in the N HARQ processes, and when the N HARQ processes are deactivated, the first field being used for indicating any of the number of repetitions of the data, an HARQ acknowledgment (HARQ-ACK) delay, or a frequency hopping flag.

Description

Data scheduling method, device and system

technical field

The present application relates to the field of communications, and in particular, to a data scheduling method, apparatus, and system.

Background technique

In an enhanced machine type communication (eMTC) system that supports a hybrid automatic repeat request (HARQ) process, network devices use the machine physical downlink control channel (MPDCCH) The downlink control information (DCI) is transmitted, and the physical downlink shared channel (PDSCH) is scheduled for downlink data transmission. After the downlink data transmission is completed, the terminal device sends a hybrid automatic repeat request-acknowledgement (HARQ-ACK) message on the physical uplink control channel (PUCCH) to feedback whether the data is transmitted successfully.

Generally, for an eMTC system supporting 10 HARQ processes, the time delay between the MPDDCH subframe where the PDSCH is scheduled to the PDSCH subframe is fixed at 2 subframes, which may cause waste of resources. Exemplarily, as shown in FIG. 1 , for a system supporting 10 HARQ processes, M0 to M9 are MPDCCH subframes for scheduling PDSCH, and D0 to D9 are PDSCH subframes scheduled by M0 to M9 respectively. A0 to A3 are PUCCH subframes for feeding back whether the transmission of D0 to D9 is successful. It can be seen from FIG. 1 that subframe 0 and subframe 1 are not used for data transmission, and subframe 10 and subframe 11 are not used for downlink control information transmission, thus causing waste of resources.

Based on this, 14 HARQ processes are introduced into the eMTC system. However, there is still a problem of insufficient resource utilization in the eMTC system currently supporting 14 HARQ processes.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a data scheduling method, device, and system, which can improve resource utilization.

To achieve the above object, the embodiments of the present application adopt the following technical solutions:

In a first aspect, a data scheduling method is provided. The method is applied to a system in which N HARQ processes are activated, where N is a positive integer greater than or equal to 14. In this method, the network device determines the first scheduling delay, the first scheduling delay is the delay for scheduling the first data with the downlink control information corresponding to the first HARQ process, and the first HARQ process is any HARQ process among the N HARQ processes . After that, the network device sends a first field to the terminal device, where the first field is used to indicate the first scheduling delay, and when the N HARQ processes are deactivated, the first field can be used to indicate any one of the following: data repetition times; HARQ-ACK delay for HARQ-ACK confirmation; or, frequency hopping flag.

Based on this solution, on the one hand, the first HARQ process is any HARQ process among the N HARQ processes, and the network device can determine the time delay for scheduling the first data by the downlink control information corresponding to the first HARQ process, that is, the network The device can determine the scheduling delay corresponding to any HARQ process. Compared with the prior art scheme in which the scheduling delay of HARQ process 0 to HARQ process 9 is fixed to 2 subframes, in this application, the network device can flexibly determine any HARQ process The corresponding scheduling delay, for example, the scheduling delay corresponding to any HARQ process may be 2 subframes or 7 subframes, which can be comprehensively considered in the data scheduling process to improve resource utilization. On the other hand, the number of repetitions of data, the HARQ-ACK delay, or the frequency hopping flag field may be multiplexed to indicate the scheduling delay, so that no additional bits need to be added to indicate the scheduling delay, saving signaling overhead. On the other hand, compared with the prior art for reinterpreting both the HARQ-ACK delay field and the HARQ-ID field, in this application, only the repetition times of the data, the HARQ-ACK delay, or the frequency hopping flag field are required. A field in the reinterpretation is performed, which has less impact on the communication protocol.

In some possible designs, the first scheduling delay is 2 time units or 7 time units. Based on this solution, taking the time unit as a subframe as an example, the network device can determine that the scheduling delay corresponding to any HARQ process is 2 subframes or 7 subframes, compared with the corresponding HARQ process 0 to HARQ process 9 in the prior art The scheduling delay is fixed at 2 subframes, so that PDCCHs corresponding to HARQ process 0 to HARQ process 9 can flexibly schedule PDSCH, thereby improving resource utilization in the scheduling process.

In some possible designs, when N HARQ processes are deactivated, the first field can be used to indicate the number of repetitions of data; when N HARQ processes are activated, the first field can also be used to indicate the number of repetitions of the first data . Based on this possible solution, the repetition times field of the multiplexed data indicates the first scheduling time delay, and may also indicate the repetition times of the first data, which saves signaling overhead and ensures the integrity of the solution. In addition, compared with reinterpreting both the HARQ-ACK delay field and the HARQ-ID field in the prior art, the present application only needs to reinterpret the repetition times field of the data, which has less impact on the communication protocol. At the same time, since the HARQ-ACK delay field is not multiplexed in this scheme, there are still 8 or more possibilities for the HARQ-ACK delay. Compared with the existing 14HARQ process scheme, the HARQ-ACK delay can be improved flexibility.

In some possible designs, the first field is used to indicate the first scheduling delay, which may include: the first state of the first field is used to indicate the first scheduling delay; the first field is also used to indicate the repetition of the first data The number of times may include: the first state of the first field is further used to indicate the number of repetitions of the first data. That is, the first state of the first field may indicate both the first scheduling delay and the number of repetitions of the first data. Based on this solution, a joint indication of the first scheduling delay and the number of repetitions of the first data can be implemented.

In some possible designs, the first field is used to indicate the first scheduling delay, and may include: M high-order bits of the first field are used to indicate the first scheduling delay; the first field is also used to indicate the first data The number of repetitions may include: the L lower-order bits of the first field are used to indicate the repetition times of the first data; or, the first field is used to indicate the first scheduling delay, and may include: the M lower-order bits of the first field are used for is used to indicate the first scheduling delay; the first field is also used to indicate the number of repetitions of the first data, which may include: L high-order bits of the first field are used to indicate the number of repetitions of the first data. M and L are positive integers. Based on this solution, separate indication of the first scheduling delay and the number of repetitions of the first data can be implemented.

In some possible designs, M above is equal to one and L is equal to one. The sum of M and L is equal to the number of bits included in the first field.

In some possible designs, the number of repetitions of the first data is 1, 2, or 4.

In some possible designs, when the N HARQ processes are deactivated, the first field can be used to indicate the HARQ-ACK delay; when the N HARQ processes are activated, the first field is also used to indicate the first HARQ-ACK ACK delay, the first HARQ-ACK delay is the delay of the first HARQ-ACK information relative to the first data, and the first HARQ-ACK information is used to feed back whether the first data is successfully transmitted. Based on this possible solution, the first scheduling delay is indicated in the multiplexed HARQ-ACK delay field, and the first HARQ-ACK delay can also be indicated, which saves signaling overhead and ensures the integrity of the solution. In addition, compared with reinterpreting both the HARQ-ACK delay field and the HARQ-ID field in the prior art, only the HARQ-ACK delay field needs to be reinterpreted in this application, which has less impact on the communication protocol.

In some possible designs, the first field is used to indicate the first scheduling delay, which may include: the second state of the first field is used to indicate the first scheduling delay; the first field is also used to indicate the first HARQ-ACK The delay may include: the second state of the first field is also used to indicate the first HARQ-ACK delay. That is, the second state of the first field may indicate both the first scheduling delay and the first HARQ-ACK delay. Based on this solution, joint indication of the first scheduling delay and the first HARQ-ACK delay can be achieved.

In some possible designs, the first field is used to indicate the first scheduling delay, which may include: the X high-order bits of the first field are used to indicate the first scheduling delay; the first field is also used to indicate the first HARQ- The ACK delay may include: the Y low-order bits of the first field are used to indicate the first HARQ-ACK delay; or, the first field is used to indicate the first scheduling delay, and may include: the X low-order bits of the first field The bit is used to indicate the first scheduling delay; the first field is also used to indicate the first HARQ-ACK delay, which may include: Y high-order bits of the first field are used to indicate the first HARQ-ACK delay, X, Y is a positive integer. Based on this solution, separate indication of the first scheduling delay and the first HARQ-ACK delay can be achieved.

In some possible designs, X is equal to 1 and Y is equal to 2 above. The sum of X and Y is equal to the number of bits included in the first field.

In some possible designs, the first HARQ-ACK delay is N time units, where N is 4, 7, 10, or 13.

In some possible designs, when the N HARQ processes are deactivated, the first field can be used to indicate a frequency hopping flag; when the N HARQ processes are activated, the first field can be used to indicate the first frequency hopping flag, The first frequency hopping flag is used to indicate whether all repeated transmissions of the first data are located in the same frequency domain resource. Based on this possible solution, when the multiplexing frequency hopping flag field indicates the first scheduling delay, the first frequency hopping flag can also be indicated, which saves signaling overhead and ensures the integrity of the solution. In addition, compared with reinterpreting both the HARQ-ACK delay field and the HARQ-ID field in the prior art, only the frequency hopping flag field needs to be reinterpreted in this application, which has less impact on the communication protocol. At the same time, since the HARQ-ACK delay field is not multiplexed in this scheme, there are still 8 or more possibilities for the HARQ-ACK delay. Compared with the existing 14HARQ process scheme, the HARQ-ACK delay can be improved flexibility.

In some possible designs, the first field is used to indicate the first scheduling delay, which may include: the third state of the first field is used to indicate the first scheduling delay; the first field is also used to indicate the first frequency hopping flag , which may include: the third state of the first field is also used to indicate the first frequency hopping flag. That is to say, the second state of the first field may indicate both the first scheduling delay and the first frequency hopping flag. Based on this solution, joint indication of the first scheduling delay and the first frequency hopping flag can be realized.

In some possible designs, the data scheduling method may further include: the network device sends a second field to the terminal device, where the second field is used to indicate a second HARQ-ACK delay, and the second HARQ-ACK delay is the first HARQ-ACK delay. The delay of the second HARQ-ACK information relative to the first data, the second HARQ-ACK information is used to feedback whether the transmission of the first data is successful, the second HARQ-ACK delay is J time units, and J is 4, 5, 6, 7, 8, 9, 11 or 13.

In some possible designs, the data scheduling method may further include: the network device sends a third field to the terminal device, where the third field is used to indicate an identifier (identifier, ID) of the first HARQ process, so as to notify the terminal device of this time HARQ process used for scheduling.

In some possible designs, sending the first field by the network device to the terminal device may include: the network device sending downlink control information DCI to the terminal device, where the DCI includes the first field.

In some possible designs, the scheduling delay is indicated in the repetition times field or the frequency hopping flag field of the multiplexed data, and the DCI includes the first field, the second field, and the third field. The scheduling delay is indicated in the multiplexed HARQ-ACK delay field, and the first field and the third field are included in the DCI.

Based on this solution, after the terminal device receives the DCI, the scheduling delay is indicated in the repetition times field or the frequency hopping flag field of the multiplexed data, the scheduling delay can be determined according to the first field, and the HARQ-ACK delay can be determined through the second field , the identifier of the HARQ process is determined through the third field, so as to determine the location of the PDSCH and HARQ-ACK resources for subsequent transmission. The scheduling delay is indicated in the Multiplexed HARQ-ACK delay field. The scheduling delay and HARQ-ACK delay can be determined according to the first field, and the identifier of the HARQ process can be determined through the third field, thereby determining the PDSCH and HARQ-ACK resources. location for subsequent transfers.

In a second aspect, a data scheduling method is provided. The method is applied to a system in which N HARQ processes are activated, where N is a positive integer greater than or equal to 14. In this method, the terminal device receives the first field from the network device, the first field is used to indicate the first scheduling delay, and then the terminal device determines the first scheduling delay according to the first field, and deactivates the N HARQ processes , the first field can be used to indicate any one of the following: the number of repetitions of the data; the HARQ-ACK delay for HARQ-ACK acknowledgement of the hybrid automatic repeat request; or, the frequency hopping flag. The first scheduling delay is the delay for scheduling the first data with the downlink control information corresponding to the first HARQ process, and the first HARQ process is any HARQ process among the N HARQ processes. Wherein, for the technical effects brought by the second aspect and any possible design, reference may be made to the technical effects brought by the above-mentioned first aspect and any possible design, which will not be repeated here.

In some possible designs, the first scheduling delay is 2 time units or 7 time units.

In some possible designs, when N HARQ processes are deactivated, the first field can be used to indicate the number of repetitions of data; when N HARQ processes are activated, the first field can also be used to indicate the number of repetitions of the first data .

In some possible designs, the first field is used to indicate the first scheduling delay, which may include: the first state of the first field is used to indicate the first scheduling delay; the first field is also used to indicate the repetition of the first data The number of times may include: the first state of the first field is further used to indicate the number of repetitions of the first data. That is, the first state of the first field may indicate both the first scheduling delay and the number of repetitions of the first data.

In some possible designs, the first field is used to indicate the first scheduling delay, and may include: M high-order bits of the first field are used to indicate the first scheduling delay; the first field is also used to indicate the first data The number of repetitions may include: the L lower-order bits of the first field are used to indicate the repetition times of the first data; or, the first field is used to indicate the first scheduling delay, and may include: the M lower-order bits of the first field are used for is used to indicate the first scheduling delay; the first field is also used to indicate the number of repetitions of the first data, which may include: L high-order bits of the first field are used to indicate the number of repetitions of the first data. M and L are positive integers.

In some possible designs, when the N HARQ processes are deactivated, the first field can be used to indicate the HARQ-ACK delay; when the N HARQ processes are activated, the first field is also used to indicate the first HARQ-ACK ACK delay, the first HARQ-ACK delay is the delay of the first HARQ-ACK information relative to the first data, and the first HARQ-ACK information is used to feed back whether the first data is successfully transmitted.

In some possible designs, the first field is used to indicate the first scheduling delay, which may include: the second state of the first field is used to indicate the first scheduling delay; the first field is also used to indicate the first HARQ-ACK The delay may include: the second state of the first field is also used to indicate the first HARQ-ACK delay. That is, the second state of the first field may indicate both the first scheduling delay and the first HARQ-ACK delay.

In some possible designs, the first field is used to indicate the first scheduling delay, which may include: the X high-order bits of the first field are used to indicate the first scheduling delay; the first field is also used to indicate the first HARQ- The ACK delay may include: the Y low-order bits of the first field are used to indicate the first HARQ-ACK delay; or, the first field is used to indicate the first scheduling delay, and may include: the X low-order bits of the first field The bit is used to indicate the first scheduling delay; the first field is also used to indicate the first HARQ-ACK delay, which may include: Y high-order bits of the first field are used to indicate the first HARQ-ACK delay, X, Y is a positive integer.

In some possible designs, when the N HARQ processes are deactivated, the first field can be used to indicate a frequency hopping flag; when the N HARQ processes are activated, the first field can be used to indicate the first frequency hopping flag, The first frequency hopping flag is used to indicate whether all repeated transmissions of the first data are located in the same frequency domain resource.

In some possible designs, the first field is used to indicate the first scheduling delay, which may include: the third state of the first field is used to indicate the first scheduling delay; the first field is also used to indicate the first frequency hopping flag , which may include: the third state of the first field is also used to indicate the first frequency hopping flag. That is to say, the second state of the first field may indicate both the first scheduling delay and the first frequency hopping flag.

In some possible designs, the data scheduling method may further include: the terminal device receives a third field from the network device, where the third field is used to indicate an identifier (identifier, ID) of the first HARQ process, so as to notify the terminal device of this HARQ process used for secondary scheduling.

In some possible designs, the terminal device receiving the first field from the network device may include: the terminal device receiving downlink control information DCI from the network device, where the DCI includes the first field.

In a third aspect, a communication apparatus is provided for implementing the above-mentioned various methods. The communication device may be the network device in the first aspect, or a device including the network device, or a device included in the network device, such as a chip; or, the communication device may be the terminal device in the second aspect, Or a device including the above-mentioned terminal equipment, or a device included in the above-mentioned terminal equipment, such as a chip. The communication device includes corresponding modules, units, or means (means) for implementing the above method, and the modules, units, or means may be implemented by hardware, software, or by executing corresponding software in hardware. The hardware or software includes one or more modules or units corresponding to the above functions.

In a fourth aspect, a communication device is provided, comprising: a processor and a memory; the memory is used for storing computer instructions, and when the processor executes the instructions, the communication device executes the method described in any one of the above aspects. The communication device may be the network device in the first aspect, or a device including the network device, or a device included in the network device, such as a chip; or, the communication device may be the terminal device in the second aspect, Or a device including the above-mentioned terminal equipment, or a device included in the above-mentioned terminal equipment, such as a chip.

In a fifth aspect, a communication device is provided, comprising: a processor; the processor is configured to be coupled to a memory, and after reading an instruction in the memory, execute the method according to any one of the preceding aspects according to the instruction. The communication device may be the network device in the first aspect, or a device including the network device, or a device included in the network device, such as a chip; or, the communication device may be the terminal device in the second aspect, Or a device including the above-mentioned terminal equipment, or a device included in the above-mentioned terminal equipment, such as a chip.

In a sixth aspect, a computer-readable storage medium is provided, and instructions are stored in the computer-readable storage medium, when the computer-readable storage medium runs on a computer, the computer can perform the method described in any one of the above aspects.

In a seventh aspect, there is provided a computer program product comprising instructions which, when run on a computer, enable the computer to perform the method of any of the preceding aspects.

In an eighth aspect, a communication device is provided, comprising: an interface circuit and at least one processor, where the interface circuit can be a code/data read/write interface circuit, and the interface circuit is used to receive a computer-executed instruction (the computer-executed instruction is stored in a memory) , possibly directly from memory, or possibly via other devices) and transferred to the processor; the processor is used to run the computer-executed instructions to perform the method described in any of the above aspects. The communication device may be the network device in the first aspect, or a device including the network device, or a device included in the network device, such as a chip; or, the communication device may be the terminal device in the second aspect, Or a device including the above-mentioned terminal equipment, or a device included in the above-mentioned terminal equipment, such as a chip.

In a ninth aspect, a communication apparatus is provided (for example, the communication apparatus may be a chip or a chip system), the communication apparatus includes a processor for implementing the functions involved in any of the above aspects. In one possible design, the communication device further includes a memory for storing necessary program instructions and data. When the communication device is a chip system, it may be constituted by a chip, or may include a chip and other discrete devices.

Wherein, for the technical effect brought by any one of the design methods in the third aspect to the ninth aspect, reference may be made to the technical effect brought by the different design methods in the first aspect or the second aspect, which will not be repeated here.

A tenth aspect provides a communication system, where the communication system includes the terminal device described in the foregoing aspect and the network device described in the foregoing aspect.

Description of drawings

1 is a schematic diagram of scheduling and feedback supporting a 10HARQ process in the prior art;

FIG. 2a is a schematic diagram of a subframe numbering provided by an embodiment of the present application;

FIG. 2b is a schematic diagram of scheduling and feedback supporting a 14HARQ process in the prior art;

FIG. 2c is another schematic diagram of scheduling and feedback supporting 14HARQ process in the prior art;

FIG. 3 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application;

4 is a schematic structural diagram of a terminal device and a network device provided by an embodiment of the present application;

FIG. 5 is a schematic structural diagram of another terminal device provided by an embodiment of the present application;

FIG. 6 is a schematic flowchart of a data scheduling method provided by an embodiment of the present application;

FIG. 7 is a schematic diagram of scheduling and feedback supporting a 14HARQ process according to an embodiment of the present application;

FIG. 8 is a schematic structural diagram of another network device provided by an embodiment of the present application;

FIG. 9 is a schematic structural diagram of another terminal device provided by an embodiment of the present application.

detailed description

In order to facilitate understanding of the solutions in the embodiments of the present application, a brief introduction or definition of related technologies is first given as follows:

1. HARQ:

HARQ is a technology that combines forward error correction (FEC) and automatic repeat request (ARQ) methods. By adding redundant information, FEC enables the receiver to correct some errors, thereby reducing the number of retransmissions. For errors that cannot be corrected by FEC, the receiver will request the sender to resend the transmission block (TB) through the ARQ mechanism. Among them, the receiving end uses an error detection code, that is, a cyclic redundancy check (cyclic redundancy check, CRC) to detect whether there is an error in the received TB. If the receiver does not detect an error, the receiver will send an acknowledgement (ACK) to the sender. After the sender receives the ACK, it will send the next TB; or, if the receiver detects an error, it will receive The terminal will send a negative acknowledgement (NACK) to the sender, and after receiving the NACK, the sender will resend the last TB to the receiver.

Among them, the HARQ protocol exists at both the transmitting end and the receiving end, and the HARQ operation at the transmitting end includes sending and retransmitting TB, and receiving and processing ACK or NACK. The HARQ operation at the receiving end includes receiving TB, and generating ACK or NACK.

In addition, HARQ is divided into uplink and downlink. Downlink HARQ is for the TB carried on the downlink shared channel (DL-SCH), and uplink HARQ is for the TB carried on the uplink shared channel (UL-SCH). Specifically, the uplink HARQ is a processing flow of confirming and retransmitting the TB sent by the terminal device to the network device. Downlink HARQ is a processing flow of acknowledging and retransmitting the TB sent by the network device to the terminal device. The methods provided in the embodiments of the present application mainly involve downlink HARQ.

2. HARQ process:

The HARQ process can be understood as a process in which the network device sends the MPDCCH to schedule the PDSCH for data transmission, and receives the HARQ-ACK information of the data transmission sent by the terminal device.

In this embodiment of the present application, one HARQ process corresponds to one MPDCCH, and one MPDCCH schedules one PDSCH.

In addition, the present application supports HARQ bundling, that is, the HARQ-ACK information of multiple PDSCHs can be logically ANDed to obtain the final HARQ-ACK information, which is sent through one time unit.

Wherein, the HARQ-ACK information includes an acknowledgement (acknowledgement, ACK) or a negative acknowledgement (negative acknowledgement, NACK).

It should be noted that, in the embodiments of the present application, the eMTC system is used as an example for description. In the eMTC system, the downlink control channel is MPDCCH. Of course, this application can also be applied to other systems. For other systems, the MPDCCH in this application can be replaced with other downlink control channels, for example, a physical downlink control channel (PDCCH) or a narrowband physical downlink control channel (narrowband physical downlink control channel). downlink control channel, NPDCCH), etc.

In addition, with the evolution of the communication system, in the eMTC system, the MPDCCH may also have other names, which are not specifically limited in this embodiment of the present application.

3. Scheduling delay, HARQ-ACK delay:

Scheduling delay: may refer to the delay of DCI scheduling data, or may refer to the delay of MPDCCH scheduling PDSCH.

Specifically, the starting time unit of the PDSCH carrying the data scheduled by the DCI is the Kth time unit after the ending time unit of the MPDCCH carrying the DCI, and the K time units (including the starting time unit of the PDSCH) can be It is understood as scheduling delay.

Exemplarily, as shown in FIG. 1 , M0 (subframe 0) is the end subframe of the MPDCCH bearing DCI, and the second subframe (subframe 2) after the end subframe is the end subframe of the PDSCH that bears the D0 scheduled by M0. Starting a subframe, in this example, the scheduling delay is 2 subframes. Similarly, the scheduling delays for M1 to M9 to schedule D1 to D9 respectively are also 2 subframes.

HARQ-ACK delay: may refer to the delay of HARQ-ACK information relative to data, or may refer to the delay of PUCCH feedback whether PDSCH transmission is successful.

Specifically, the start time unit of the PUCCH carrying the HARQ-ACK information is the Nth time unit after the end time unit of the PDSCH carrying the data, and the N time units (including the start time unit of the PUCCH) are HARQ-ACK delay.

Exemplarily, as shown in FIG. 1 , it is assumed that whether the data carried by D0 is successfully transmitted is fed back at A0, and D0 (subframe 2) is the end subframe of the PDSCH carrying the data, and the 11th subframe ( Subframe 13) is the starting subframe for carrying HARQ-ACK information, then in this example, the HARQ-ACK delay is 11 subframes.

In this embodiment of the present application, the time unit may be, for example, a frame, a subframe, a symbol, an effective frame, an effective subframe, an effective symbol, an absolute frame, an absolute subframe, an absolute symbol, or bandwidth reduction and low complexity-coverage enhancement (bandwidth- reduced low-complexity and coverage enhancement, BL/CE) subframe.

Of course, with the evolution of the communication system, the time unit may also be other quantities representing unit time, which is not specifically limited in this embodiment of the present application. In the following embodiments of the present application, a time unit is used as a subframe for description. It can be understood that the subframe may also be replaced by any of the above time units.

It should be noted that, in practical applications, a frame may include multiple subframes, and the indices of the subframes start from the lowest time of the frame and are numbered in an increasing order of time. Exemplarily, taking a new radio (NR) system as an example, one frame includes 10 subframes. Taking two frames as an example, as shown in FIG. 2a, frame 0 includes 10 subframes numbered 0-9, and frame 1 also includes 10 subframes numbered 0-9.

In this application, in order to illustrate the problem more directly, the subframes are not numbered in units of frames in the drawings, but are numbered sequentially. For example, as shown in FIG. 2a, the present application numbers the 10 subframes of frame 1 as 10-19.

Currently, for a system supporting 10 HARQ processes, as shown in FIG. 1 , there is a problem of wasting resources. Based on this, a system supporting 14 HARQ processes is proposed. As shown in FIG. 2b, it is a schematic diagram of scheduling data transmission and sending feedback information in a system supporting 14 HARQ processes.

Wherein, M10 to M13 are MPDCCH subframes corresponding to newly introduced HARQ process 10 to HARQ process 13 . D10 and D11 schedule PDSCH subframes for M10 and M11, respectively, located in subframe 17 and subframe 18, and the corresponding HARQ-ACK information is fed back at subframe 30. At subframe 27 and subframe 28, since the HARQ process for D10 and D11 has not fed back HARQ-ACK information, scheduling cannot be performed, that is, subframe 27 and subframe 28 cannot be M10 and M11, and two more HARQs need to be introduced. process.

In this solution, for the newly added HARQ process 10 to HARQ process 13, the corresponding scheduling delay of MPDCCH and PDSCH can be 2 subframes or 7 subframes (for example, the delay of M10 scheduling D10 is 7 subframes) . For the existing HARQ process 0 to HARQ process 9, the corresponding scheduling delay of MPDCCH and PDSCH is 2 subframes, which is the same as when 10 HARQ processes are supported.

However, this solution still has the problem of insufficient resource utilization. As shown in Figure 2c, it is assumed that M12#1 (not shown in Figure 2c, subframe 0 is the 7th subframe after the subframe where M12#1 is located) is scheduled The D12#1 is located in subframe 0, and the terminal device fails to decode the D12#1, the terminal device can feed back the NACK corresponding to D12#1 at A0. At this time, the network device may schedule retransmission for D12#1. If subframe 17 sends M12#2 for scheduling a retransmission of D12#1 (denoted by D12#2), then D12#2 is located in subframe 19.

At this time, it is assumed that M0 to M8 and M13 are located in subframes 18 to 27, respectively, then M9 may be located in subframe 28. Since in this scheme, the scheduling delay of M0 to M9 is fixed at 2 subframes, if according to this scheme, D9 If it is located in subframe 30, then A0 cannot be transmitted in subframe 30. Therefore, the positions of subframe 28 and subframe 35 need to be vacant, that is, subframe 28 cannot transmit MPDCCH, and subframe 35 cannot transmit PDSCH, resulting in waste of resources.

In addition, in this solution, the AHRQ-ACK delay field in the DCI is used to indicate the used HARQ process identifier (identifier, ID) and the scheduling delay, as shown in Table 1 below.

Table 1

HARQ-ACK时延字段HARQ-ACK Delay Field	HARQ IDHARQ ID	调度时延scheduling delay
000000	1010	22
001001	1010	77
010010	1111	22
011011	1111	77
100100	1212	22
101101	1212	77
110110	1313	22
111111	1313	77

In this solution, bit states 10 to 15 of the HARQ process identification field in the DCI may also be used to indicate the HARQ-ACK delay, as shown in Table 2 below.

Table 2

HARQ-ID字段HARQ-ID field	HARQ-ACK时延HARQ-ACK delay
1010	44
1111	55
1212	77
1313	99
1414	1111
1515	1313

It can be seen from Table 1 and Table 2 that in this solution, both the HARQ-ACK delay field and the HARQ-ID field are reinterpreted, which has a great impact on the current communication protocol. In addition, in this solution, the HARQ-ACK delay after reinterpreting the DCI has 6 possible values. Compared with the 8 possible values indicated by the 3-bit HARQ-ACK delay field in the original DCI, the flexibility of the HARQ-ACK delay reduce.

Based on the above analysis, an embodiment of the present application provides a data scheduling method for improving resource utilization.

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Wherein, in the description of this application, unless otherwise specified, "/" indicates that the objects associated before and after are an "or" relationship, for example, A/B can indicate A or B; in this application, "and/or" "It is only an association relationship that describes an associated object, which means that there can be three kinds of relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A exists , B can be singular or plural. Also, in the description of the present application, unless stated otherwise, "plurality" means two or more than two. "At least one item(s) below" or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one item (a) of a, b, or c may represent: a, b, c, ab, ac, bc, or abc, where a, b, and c may be single or multiple .

In addition, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish the same or similar items with basically the same function and effect. Those skilled in the art can understand that the words "first", "second" and the like do not limit the quantity and execution order, and the words "first", "second" and the like are not necessarily different. Meanwhile, in the embodiments of the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations or illustrations. Any embodiments or designs described in the embodiments of the present application as "exemplary" or "such as" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present the related concepts in a specific manner to facilitate understanding.

The embodiments of the present application may be applicable to long term evolution (long term evolution, LTE) systems, such as eMTC systems of the Internet of Things (IoT); and may also be applicable to other wireless communication systems, such as the global system for mobile communications (global system for mobile communication, GSM), mobile communication system (universal mobile telecommunications system, UMTS), code division multiple access (code division multiple access, CDMA) system, wideband code division multiple access (wideband code division multiple access, WCDMA), NR and future-oriented new network systems, etc., which are not specifically limited in this embodiment of the present application. The above-mentioned communication systems applicable to the present application are merely illustrative, and the communication systems applicable to the present application are not limited thereto, and are described here in a unified manner, and will not be repeated below. Furthermore, the term "system" can be used interchangeably with "network".

As shown in FIG. 3 , a communication system is provided in an embodiment of the present application. The communication system 10 includes a network device 30 and one or more terminal devices 40 connected to the network device 30 . Optionally, different terminal devices 40 may communicate with each other.

Taking the interaction between the network device 30 and any terminal device 40 shown in FIG. 3 as an example, in this embodiment of the present application, a data scheduling method is provided, and the method is applied to a system that activates N HARQ processes, where N is greater than or equal to A positive integer of 14. The method includes: after the network device determines the first scheduling delay, sending a first field to the terminal device, where the first field is used to indicate the first scheduling delay, and the first scheduling delay is the downlink corresponding to the first HARQ process The control information schedules the delay of the first data, and the first HARQ process is any HARQ process among the N HARQ processes. When the N HARQ processes are deactivated, the first field can be used to indicate any one of the following: the number of repetitions of data, the HARQ-ACK delay for HARQ-ACK acknowledgement, or the frequency hopping flag. After receiving the first field, the terminal device may determine the first scheduling delay according to the first field.

Optionally, the network device 30 in the embodiment of the present application is a device that accesses the terminal device 40 to the wireless network, and may be an evolutional Node B (evolutional Node B) in long term evolution (long term evolution, LTE). eNB or eNodeB); or 5th generation (5th generation, 5G) network or the base station in the future evolved public land mobile network (public land mobile network, PLMN), broadband network gateway (broadband network gateway, BNG), aggregation switch Or a non-3rd generation partnership project (3rd generation partnership project, 3GPP) access device; or the network device 30 in this embodiment of the present application may also be a wireless control device in a cloud radio access network (cloud radio access network, CRAN) or a transmission and reception point (TRP), or a device including a TRP, etc., which are not specifically limited in this embodiment of the present application. Optionally, the base station in this embodiment of the present application may include various forms of base station, for example: a macro base station, a micro base station (also referred to as a small cell), a relay station, an access point, etc., which are not specifically limited in this embodiment of the present application .

Optionally, the terminal device 40 in this embodiment of the present application may be a device for implementing a wireless communication function, such as a terminal or a chip that can be used in the terminal, and the like. The terminal may be the Internet of Things (Internet of Things, IoT), 5G network, or user equipment (UE), access terminal, terminal unit, terminal station, mobile station, mobile station, Remote station, remote terminal, mobile device, wireless communication device, terminal agent or terminal device, etc. The access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (SIP) telephone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices or wearable devices, virtual reality (VR) end devices, augmented reality (AR) end devices, industrial control (industrial) wireless terminal in control), wireless terminal in self-driving, wireless terminal in remote medical, wireless terminal in smart grid, wireless terminal in transportation safety Terminals, wireless terminals in smart cities, wireless terminals in smart homes, etc. Terminals can be mobile or stationary.

Optionally, the network device 30 and the terminal device 40 in this embodiment of the present application may also be referred to as communication devices, which may be a general-purpose device or a dedicated device, which is not specifically limited in this embodiment of the present application.

Optionally, as shown in FIG. 4 , it is a schematic structural diagram of a network device 30 and a terminal device 40 provided in this embodiment of the present application.

The terminal device 40 includes at least one processor (in FIG. 4 , it is exemplified by including one processor 401 ) and at least one transceiver (in FIG. 4 , it is exemplified by including one transceiver 403 ) ). Optionally, the terminal device 40 may further include at least one memory (in FIG. 4 , it is exemplified that one memory 402 is included), at least one output device (in FIG. 4 , one output device 404 is exemplified as an example) for illustration) and at least one input device (in FIG. 4, one input device 405 is used as an example for illustration).

The processor 401, the memory 402 and the transceiver 403 are connected by a communication line. The communication link may include a path to communicate information between the components described above.

The processor 401 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of programs in the present application. circuit. In a specific implementation, as an embodiment, the processor 401 may also include multiple CPUs, and the processor 401 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, or processing cores for processing data (eg, computer program instructions).

The memory 402 may be a device having a storage function. For example, it may be read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types of storage devices that can store information and instructions The dynamic storage device can also be electrically erasable programmable read-only memory (electrically erasable programmable read-only memory, EEPROM), compact disc read-only memory (CD-ROM) or other optical disk storage, optical disk storage ( including compact discs, laser discs, compact discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of being stored by a computer any other medium taken, but not limited to this. The memory 402 may exist independently and be connected to the processor 401 through a communication line. The memory 402 may also be integrated with the processor 401 .

The memory 402 is used for storing computer-executed instructions for executing the solution of the present application, and the execution is controlled by the processor 401 . Specifically, the processor 401 is configured to execute the computer-executed instructions stored in the memory 402, thereby implementing the data scheduling method described in the embodiments of the present application.

Or, optionally, in this embodiment of the present application, the processor 401 may also perform processing-related functions in the data scheduling method provided by the following embodiments of the present application, and the transceiver 403 is responsible for communicating with other devices or communication networks. This is not specifically limited in the application examples.

Optionally, the computer-executed instructions in the embodiment of the present application may also be referred to as application program code or computer program code, which is not specifically limited in the embodiment of the present application.

Transceiver 403 may use any transceiver-like device for communicating with other devices or communication networks, such as Ethernet, radio access network (RAN), or wireless local area networks (WLAN) Wait. The transceiver 403 includes a transmitter (transmitter, Tx) and a receiver (receiver, Rx).

The output device 404 is in communication with the processor 401 and can display information in a variety of ways. For example, the output device 404 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector (projector) Wait.

Input device 405 is in communication with processor 401 and can accept user input in a variety of ways. For example, the input device 405 may be a mouse, a keyboard, a touch screen device, a sensor device, or the like.

The network device 30 includes at least one processor (in FIG. 4 , it is exemplified by including one processor 301 ), at least one transceiver (in FIG. 4 , it is exemplified by including one transceiver 303 ) and At least one network interface (in FIG. 4 , it is exemplified that one network interface 304 is included for illustration). Optionally, the network device 30 may further include at least one memory (in FIG. 4 , it is exemplified that one memory 302 is included for illustration). Among them, the processor 301, the memory 302, the transceiver 303 and the network interface 304 are connected through a communication line. The network interface 304 is used to connect with the core network device through a link (such as the S1 interface), or connect with the network interface of other network devices (not shown in FIG. 4 ) through a wired or wireless link (such as the X2 interface). This is not specifically limited in the application examples. In addition, for the description of the processor 301, the memory 302, and the transceiver 303, reference may be made to the description of the processor 401, the memory 402, and the transceiver 403 in the terminal device 40, and details are not repeated here.

With reference to the schematic structural diagram of the terminal device 40 shown in FIG. 4 , by way of example, FIG. 5 is a specific structural form of the terminal device 40 provided by the embodiment of the present application.

Wherein, in some embodiments, the functions of the processor 401 in FIG. 4 may be implemented by the processor 110 in FIG. 5 .

In some embodiments, the functions of the transceiver 403 in FIG. 4 may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, and the like in FIG. 5 .

Among them, the antenna 1 and the antenna 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in terminal device 40 may be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization. For example, the antenna 1 can be multiplexed as a diversity antenna of the wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 may provide a wireless communication solution including 2G/3G/4G/5G, etc. applied on the terminal device 40 . The mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (LNA) and the like. The mobile communication module 150 can receive electromagnetic waves from the antenna 1, filter and amplify the received electromagnetic waves, and transmit them to the modulation and demodulation processor for demodulation. The mobile communication module 150 can also amplify the signal modulated by the modulation and demodulation processor, and then turn it into an electromagnetic wave for radiation through the antenna 1 . In some embodiments, at least part of the functional modules of the mobile communication module 150 may be provided in the processor 110 . In some embodiments, at least part of the functional modules of the mobile communication module 150 may be provided in the same device as at least part of the modules of the processor 110 .

The wireless communication module 160 can provide applications on the terminal device 40 including wireless local area networks (WLAN) (such as Wi-Fi networks), Bluetooth (blue tooth, BT), global navigation satellite system (global navigation satellite system, GNSS), frequency modulation (FM), near field communication (NFC), infrared technology (infrared, IR) and other wireless communication solutions. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2 , frequency modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110 . The wireless communication module 160 can also receive the signal to be sent from the processor 110 , perform frequency modulation on it, amplify it, and convert it into electromagnetic waves for radiation through the antenna 2 . When the terminal device 40 is the first device, the wireless communication module 160 can provide a solution of NFC wireless communication applied on the terminal device 40, which means that the first device includes an NFC chip. The NFC chip can improve the NFC wireless communication function. When the terminal device 40 is the second device, the wireless communication module 160 can provide a solution for NFC wireless communication applied to the terminal device 40, which means that the first device includes an electronic tag (such as a radio frequency identification (RFID) tag. ). The NFC chip of the other device is close to the electronic tag and can perform NFC wireless communication with the second device.

In some embodiments, the antenna 1 of the terminal device 40 is coupled with the mobile communication module 150, and the antenna 2 is coupled with the wireless communication module 160, so that the terminal device 40 can communicate with the network and other devices through wireless communication technology. The wireless communication technology may include global system for mobile communications (GSM), general packet radio service (GPRS), code division multiple access (CDMA), broadband Code Division Multiple Access (WCDMA), Time Division Code Division Multiple Access (TD-SCDMA), Long Term Evolution (LTE), BT, GNSS, WLAN, NFC , FM, or IR technology, etc. The GNSS may include a global positioning system (global positioning system, GPS), a global navigation satellite system (GLONASS), a Beidou navigation satellite system (BDS), a quasi-zenith satellite system (quasi -zenith satellite system, QZSS) or satellite based augmentation systems (SBAS).

In some embodiments, the function of the memory 402 in FIG. 4 may be implemented by the internal memory 121 in FIG. 5 or an external memory (eg, a Micro SD card) connected to the external memory interface 120, or the like.

In some embodiments, the functionality of output device 404 in FIG. 4 may be implemented by display screen 194 in FIG. 5 . Among them, the display screen 194 is used for displaying images, videos and the like. Display screen 194 includes a display panel.

In some embodiments, the functionality of the input device 405 in FIG. 4 may be implemented by a mouse, a keyboard, a touch screen device, or the sensor module 180 in FIG. 5 . Exemplarily, as shown in FIG. 5 , the sensor module 180 may include, for example, a pressure sensor 180A, a gyro sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, and a fingerprint sensor 180H. , one or more of the temperature sensor 180J, the touch sensor 180K, the ambient light sensor 180L, and the bone conduction sensor 180M, which are not specifically limited in this embodiment of the present application.

In some embodiments, as shown in FIG. 5 , the terminal device 40 may further include an audio module 170, a camera 193, an indicator 192, a motor 191, a button 190, a SIM card interface 195, a USB interface 130, a charging management module 140, One or more of the power management module 141 and the battery 142, wherein the audio module 170 can be connected with the speaker 170A (also called "speaker"), the receiver 170B (also called "earpiece"), the microphone 170C (also called "microphone", "microphone") or the headphone jack 170D, etc., which are not specifically limited in this embodiment of the present application.

It can be understood that the structure shown in FIG. 5 does not constitute a specific limitation on the terminal device 40 . For example, in other embodiments of the present application, the terminal device 40 may include more or less components than shown, or combine some components, or separate some components, or arrange different components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The data scheduling method provided by the embodiment of the present application will be described below by taking the interaction between the network device 30 shown in FIG. 3 and any terminal device 40 as an example in conjunction with FIG. 1 to FIG. 5 .

It can be understood that, in the embodiments of the present application, the terminal device and/or the network device may perform some or all of the steps in the embodiments of the present application, these steps or operations are only examples, and the embodiments of the present application may also perform other operations or various Variation of operations. In addition, various steps may be performed in different orders presented in the embodiments of the present application, and may not be required to perform all the operations in the embodiments of the present application.

It should be noted that the names of messages between devices or functions or the names of parameters in the messages in the following embodiments of the present application are just an example, and other names may also be used in specific implementations, which are not made in the embodiments of the present application. Specific restrictions.

In the following embodiments of the present application, the terminal device supports N HARQ processes, or the terminal device has the ability to support N HARQ processes, and the network device configures N HARQ processes for the terminal device, that is, the terminal device and the network An example of activating (or enabling) (enable) N HARQ processes in a system composed of devices will be described.

As shown in FIG. 6, a data scheduling method provided by an embodiment of the present application includes the following steps:

S601. The network device determines a first scheduling delay.

The first scheduling delay is the delay for scheduling the first data by the downlink control information corresponding to the first HARQ process. In other words, the first scheduling delay is the delay for scheduling the PDSCH carrying the first data on the MPDCCH corresponding to the first HARQ process that carries the downlink control information. The first HARQ process is any HARQ process among the N activated HARQ processes.

Specifically, the starting time unit of the PDSCH carrying the first data is the Kth time unit after the ending time unit of the MPDCCH carrying the downlink control information, and the K time units (including the starting time unit of the PDSCH) can be is the first scheduling delay, and K is a positive integer.

Optionally, the first scheduling delay is 2 time units or 7 time units. That is to say, the start time unit of the PDSCH carrying the first data is the second time unit or the seventh time unit after the end time unit of the MPDCCH carrying the downlink control information. Based on this solution, the network device can determine the scheduling delay corresponding to any HARQ process as 2 time units or 7 time units.

Certainly, the first scheduling delay may also have other values, which are not specifically limited in this embodiment of the present application.

S602. The network device sends the first field to the terminal device. Correspondingly, the terminal device receives the first field from the network device.

Wherein, the first field is used to indicate the first scheduling delay.

Optionally, the use of the first field to indicate the first scheduling delay may be understood as: some or all bits of the first field are used to indicate the first scheduling delay.

When the above N HARQ processes are deactivated (or disabled), the first field can be used to indicate any one of the following: the number of repetitions of data, the HARQ-ACK delay, or the frequency hopping flag.

It should be noted that, in this embodiment of the present application, the deactivation of N HARQ processes means that all N HARQ processes are not activated, that is, the terminal device has the ability to support N HARQ processes, but the capability is not activated or enabled . At this time, some HARQ processes among the N HARQ processes may be activated. For example, if N is equal to 14, the terminal device of Release 17 (Release17, R17) has the ability to support 14HARQ process. After the terminal device reports its ability to support 14HARQ process to the network device, the network device does not activate or enable the 14HARQ process. At this time, the terminal equipment of the R17 needs to communicate with the network equipment according to the 10HARQ process characteristics of the R16.

Optionally, sending the first field by the network device to the terminal device may include: the network device sending DCI to the terminal device, where the DCI includes the first field.

That is, the network device may multiplex the repetition times field of the data in the DCI when the N HARQ processes are deactivated, the HARQ-ACK delay field, or the frequency hopping flag field to send the first scheduling delay.

Exemplarily, some fields (or called fields) included in the DCI when the N HARQ processes are deactivated may be as shown in Table 3 (the parts irrelevant to this application are omitted). Among them, the identification field of 1 bit distinguishing format 6-0A or format 6-1A is used to indicate whether the specific format of the DCI is format 6-0A or format 6-1A; the frequency hopping identification field of 1 bit is used to indicate all repeated transmissions of data Whether it is located in the same frequency domain resource; the resource block allocation field is used to indicate the allocation of resource blocks; the 4-bit HARQ process number field is used to indicate the HARQ process corresponding to the current DCI; the 2-bit redundancy version (redundancy version, RV) field is used for Indicates the RV corresponding to the data scheduled by the DCI; the 2-bit number of repetitions (that is, the number of repetitions of data) field is used to indicate the number of repetitions used for data transmission scheduled by the DCI; the 1-bit new data indicator (new data indicator, NDI) field is used for Indicates whether the currently scheduled transmission is initial transmission or retransmission; the 2-bit DCI repetition times field is used to indicate the DCI repetition times. When the number of bits corresponding to this field is 0, it indicates that the DCI repetition times field is not included in the DCI; 3-bit HARQ- The ACK delay field is used to indicate the delay of the HARQ-ACK information relative to the data scheduled by the DCI.

table 3

DCI包括的字段(或域)Fields (or fields) included in DCI	比特数number of bits
区分格式6-0A或格式6-1A的标识字段Distinguish the identification field of Format 6-0A or Format 6-1A	11
跳频标识字段Frequency Hopping Identification Field	11
资源块分配字段resource block allocation field	和下行资源块数相关related to the number of downlink resource blocks
HARQ进程数字段HARQ process number field	44
RV RV	22

重复次数字段Repeats field	22
NDI字段 NDI field	11
DCI重复次数字段DCI Repeats field	0或20 or 2
HARQ-ACK时延字段HARQ-ACK Delay Field	33

Based on this example, the network device may indicate the first scheduling delay through the 2-bit repetition times field, the 3-bit HARQ-ACK delay field, or the 1-bit frequency hopping identifier field in Table 3 above.

It should be noted that the number of repetitions in this embodiment of the present application refers to the number of times of data repetition in one transmission, and similarly, all repeated transmissions of data refer to the number of times of data repetition in one transmission, which is different from the retransmission in the HARQ mechanism.

S603. The terminal device determines the first scheduling delay according to the first field.

Optionally, the terminal device may reinterpret the data repetition times field, the HARQ-ACK delay field, or the frequency hopping flag field when the N HARQ processes are deactivated as the first field, and use the value or state of the first field according to the value or status of the first field. A first scheduling delay is determined.

Optionally, after determining the first scheduling delay, the terminal device may send the first data according to the first scheduling delay.

The method for indicating the first scheduling delay by the first field is described in detail below. There may be the following situations:

Case 1: When N HARQ processes are deactivated, the first field can be used to indicate the number of repetitions of data.

That is, the network device may multiplex the data repetition times field to indicate the first scheduling delay.

Optionally, taking N as 14 as an example, a terminal device supporting the 14HARQ feature may send terminal capability information to the network device to report that it supports the 14HARQ feature. After receiving the terminal capability information, the network device activates (or enables) the 14HARQ feature when the channel conditions are good, or configures 14HARQ processes for the terminal device. When the channel conditions are poor, it can use the radio resource control ( The radio resource control, RRC) reconfiguration message deactivates (or disables) the 14 HARQ feature, for example, to configure 10 HARQ processes for the terminal device.

Since the embodiments of this application are described by taking the activation of N HARQ processes as an example, it can be considered that the channel conditions are good, and the network device can configure a smaller number of repetitions for the terminal device or not configure the number of repetitions, so that the network device can multiplex data The number of repetitions field of , indicates the first scheduling delay, that is, the number of repetitions field is used as the first field.

Optionally, in this case, the first field may also be used to indicate the number of repetitions of the first data. That is, the first field may indicate both the first scheduling delay and the number of repetitions of the first data.

Optionally, the number of repetitions of the first data may be 1, 2, or 4. Of course, there may also be other values, which are not specifically limited in this embodiment of the present application.

Optionally, the first field may indicate the first scheduling delay and the number of repetitions of the first data in the following two ways.

Method 1. Joint instructions.

The first field is used to indicate the first scheduling delay, which may include: the first state of the first field is used to indicate the first scheduling delay; the first field is also used to indicate the repetition times of the first data, which may include: The first state of the first field is used to indicate the number of repetitions of the first data. That is, the first state of the first field may indicate both the first scheduling delay and the number of repetitions of the first data.

Exemplarily, taking the first field including 2 bits as an example, the scheduling delay indicated by the state of the first field and the repetition times of data may be as shown in Table 4 below.

It should be noted that the time unit of the scheduling delay in the following embodiments of the present application is a time unit. For example, when the scheduling delay in Table 4 is taken as 2, it means that the scheduling delay is 2 time units.

Table 4

第一字段的状态the state of the first field	调度时延scheduling delay	数据的重复次数Number of repetitions of data
00	22	11
11	77	11
22	22	2或42 or 4
33	77	2或42 or 4

It should be noted that this application does not specifically limit the value of the first field corresponding to each state in Table 4. For example, the values of the first field corresponding to the state 0 to the state 3 of the first field may be 00 respectively. , 01, 10 and 11.

It can be understood that the above Table 4 is only an example to illustrate the relationship between the state and its indicated scheduling delay and the number of repetitions of data. In practical applications, there may be other relationships, such as the scheduling delay and the number of repetitions of data. There may also be other values, which are not specifically limited in this embodiment of the present application.

Method 2: Separate instructions.

The first field is used to indicate the first scheduling delay, and may include: M high-order bits of the first field are used to indicate the first scheduling delay; the first field is also used to indicate the number of repetitions of the first data, which may include : The L low-order bits of the first field are used to indicate the number of repetitions of the first data, and M and L are positive integers. Optionally, the sum of M and L is equal to the total number of bits in the first field.

Alternatively, the first field is used to indicate the first scheduling delay, and may include: the M low-order bits of the first field are used to indicate the first scheduling delay; the first field is also used to indicate the number of repetitions of the first data, It includes: L high-order bits of the first field are used to indicate the repetition times of the first data, and M and L are positive integers. Optionally, the sum of M and L is equal to the total number of bits in the first field.

Exemplarily, taking the first field including 2 bits, M and L are respectively equal to 1, M is the high-order bit, L is the low-order bit, the highest-order bit is at the leftmost, and the lowest-order bit is at the rightmost as an example, the first field The scheduling delay indicated by the value of , and the number of repetitions of data may be shown in Table 5a and Table 5b below.

Table 5a

第一字段的高位比特High order bits of the first field		调度时延scheduling delay
00	22
11	77

Table 5b

第一字段的低位比特Low order bits of the first field	数据的重复次数Number of repetitions of data
00	11
11	2或42 or 4

Or, taking the first field including 2 bits, M and L respectively equal to 1, M being the low-order bit, and L being the high-order bit as an example, the scheduling delay indicated by the value of the first field and the number of repetitions of the data can be as shown in Table 6a and shown in Table 6b.

Table 6a

第一字段的高位比特High order bits of the first field	数据的重复次数Number of repetitions of data
00	11
11	2或42 or 4

Table 6b

第一字段的低位比特Low order bits of the first field		调度时延scheduling delay
00	22
11	77

It can be understood that the above-mentioned Tables 5a to 6b are only exemplary to illustrate the relationship between the value of the first field and its indicated scheduling delay and the number of repetitions of data, and other relationships may also exist in practical applications. The scheduling delay and the repetition times of data may also have other values, which are not specifically limited in this embodiment of the present application.

Based on the examples in Tables 4 to 6b, when N is equal to 14, the scheduling delay of any HARQ process can be 2 time units or 7 time units, so that the network device can schedule more flexibly, thereby improving resource utilization. .

To sum up, the terminal device can determine the first scheduling delay and the number of repetitions of the first data by interpreting the first field, or in other words, by reinterpreting the repetition times field, so as to perform data transmission according to them.

Optionally, the network device further sends the second field to the terminal device. Correspondingly, the terminal device also receives the second field from the network device. The second field is used to indicate the second HARQ-ACK delay, the second HARQ-ACK delay is the delay of the second HARQ-ACK information relative to the first data, and the second HARQ-ACK information is used to feed back the first HARQ-ACK information. Whether the data is transmitted successfully.

It should be noted that the embodiments of the present application also involve the first HARQ-ACK delay and the first HARQ-ACK information, which will be described in the following embodiments.

Optionally, the second HARQ-ACK delay can also be understood as a delay for the PUCCH carrying the second HARQ-ACK information to feed back whether the PDSCH carrying the first data is successfully transmitted.

Specifically, the start time unit of the PUCCH carrying the second HARQ-ACK information is the Jth time unit after the end time unit of the PDSCH carrying the first data, and the J time units (including the start time of the PUCCH) unit) is the second HARQ-ACK delay. Optionally, J can be 4, 5, 6, 7, 8, 9, 11, or 13.

Optionally, the second field may be a HARQ-ACK delay field. The number of bits included in the second field may be three. Exemplarily, a possible indication relationship between the second field and the HARQ-ACK delay is shown in Table 7 below.

It should be noted that, in this embodiment of the present application, the time unit of the HARQ-ACK delay is a time unit. For example, when the HARQ-ACK delay in Table 7 is taken as 4, it means that the HARQ-ACK delay is 4 time units.

Table 7

第二字段(或HARQ-ACK时延字段)Second field (or HARQ-ACK delay field)	HARQ-ACK时延HARQ-ACK delay
000000	44
001001	55
010010	66
011011	77
100100	88
101101	99

110110	1111
111111	1313

It can be understood that the above Table 7 is only an exemplary description of the relationship between the value of the second field and the HARQ-ACK delay indicated by it. In practical applications, there may be other relationships, and the HARQ-ACK delay may also be There are other values, which are not specifically limited in this embodiment of the present application.

Optionally, the network device also sends the third field to the terminal device. Correspondingly, the terminal device also receives the third field from the network device. The third field is used to indicate an identifier (identifier, ID) of the first HARQ process, so as to notify the terminal device of the HARQ process used for this scheduling.

Optionally, the third field may be a HARQ-ID field. The number of bits included in the third field may be 2.

Optionally, different states of the third field may indicate different HARQ processes. Exemplarily, taking N equal to 14 as an example, a possible indication relationship between the state of the third field and the HARQ process is shown in Table 8 below. Wherein, "--" indicates idle, that is, when the state of the third field is 14 or 15, the HARQ process is not indicated.

Table 8

第三字段(或HARQ-ID字段)Third field (or HARQ-ID field)	HARQ-IDHARQ-ID
00	00
11	11
22	22
33	33
44	44
55	55
66	66
77	77
88	88
99	99
1010	1010
1111	1111
1212	1212
1313	1313
1414	----
1515	----

Optionally, the above-mentioned first field, second field, and third field may be fields in DCI. That is to say, in this embodiment of the present application, the DCI may include a first field, and the first field may multiplex the repetition times field, the second field may be an existing HARQ-ACK delay field, and the third field may be an existing HARQ-ACK delay field. the HARQ-ID field. After receiving the DCI, the terminal device can determine the HARQ process identifier according to the HARQ-ID field, determine the scheduling delay by reinterpreting the repetition times field, and determine the HARQ-ACK delay through the HARQ-ACK field, thereby determining the PDSCH, HARQ- The location of the ACK resource for subsequent transmissions.

Based on this solution, the scheduling delay can be indicated by the repetition times of the multiplexed data, so that there is no need to add extra bits to indicate the scheduling delay, which saves signaling overhead. In addition, compared with the prior art for reinterpreting both the HARQ-ACK delay field and the HARQ-ID field, in this application, only the repetition times field of the data is required to be reinterpreted, which has less impact on the communication protocol. At the same time, since the HARQ-ACK delay field is not multiplexed in this scheme, there are still 8 or more possibilities for the HARQ-ACK delay. Compared with the existing 14HARQ process scheme, the HARQ-ACK delay can be improved flexibility.

Case 2: When N HARQ processes are deactivated, the first field can be used to indicate the HARQ-ACK delay.

That is, the network device may multiplex the HARQ-ACK delay field to indicate the first scheduling delay.

Optionally, in this case, the first field may also be used to indicate the first HARQ-ACK delay. The first HARQ-ACK delay is the delay of the first HARQ-ACK information relative to the first data, and the first HARQ-ACK delay is used to feed back whether the first data is successfully transmitted.

Optionally, the first HARQ-ACK delay can also be understood as a delay for the PUCCH carrying the first HARQ-ACK information to feed back whether the PDSCH carrying the first data is successfully transmitted.

Specifically, the start time unit of the PUCCH carrying the first HARQ-ACK information is the Nth time unit after the end time unit of the PDSCH carrying the first data, the N time units (including the start time of the PUCCH) unit) is the first HARQ-ACK delay. Optionally, N can be 4, 5, 6, 7, 8, 9, 11, or 13.

That is, the first field may be used to indicate both the first scheduling delay and the first HARQ-ACK delay.

Optionally, the first field may indicate the first scheduling delay and the first HARQ-ACK delay in the following two ways.

Method 1. Joint instructions.

The first field is used to indicate the first scheduling delay, and may include: the second state of the first field is used to indicate the first scheduling delay; the first field is also used to indicate the first HARQ-ACK delay, which may include : The second state of the first field is also used to indicate the first HARQ-ACK delay. That is, the second state of the first field may indicate both the first scheduling delay and the first HARQ-ACK delay.

Exemplarily, taking the first field including 3 bits as an example, the scheduling delay indicated by the state of the first field and the HARQ-ACK delay may be as shown in Table 9 below.

Table 9

第一字段first field	HARQ-ACK时延HARQ-ACK delay		调度时延scheduling delay
00	44	22
11	77	22
22	1010	22
33	1313	22
44	44	77
55	77	77
66	1010	77
77	1313	77

It should be noted that this application does not specifically limit the value of the first field corresponding to each state in Table 9. For example, the values of the first field corresponding to the state 0 to the state 7 of the first field may be 000 respectively. , 001, 010, 011, 100, 101, 110, 111.

It can be understood that the above Table 9 is only an example to illustrate the relationship between the state and its indicated scheduling delay and HARQ-ACK delay. In practical applications, there may be other relationships. The delay may also have other values, which are not specifically limited in this embodiment of the present application.

Method 2: Separate instructions.

The first field is used to indicate the first scheduling delay, and may include: X high-order bits of the first field are used to indicate the first scheduling delay; the first field is also used to indicate the first HARQ-ACK delay, which may It includes: Y low-order bits of the first field are used to indicate the first HARQ-ACK delay, and X and Y are positive integers. Optionally, the sum of X and Y is equal to the total number of bits in the first field.

Alternatively, the first field is used to indicate the first scheduling delay, and may include: the X lower-order bits of the first field are used to indicate the first scheduling delay; the first field is also used to indicate the first HARQ-ACK delay , which may include: Y high-order bits of the first field are used to indicate the first HARQ-ACK delay, and X and Y are positive integers. Optionally, the sum of X and Y is equal to the total number of bits in the first field.

Exemplarily, taking the first field including 3 bits, X is equal to 1, Y is equal to 2, X is a high-order bit, Y is a low-order bit, the highest-order bit is at the leftmost, and the lowest-order bit is at the rightmost as an example, the first The scheduling delay indicated by the value of the field and the HARQ-ACK delay may be shown in Table 10a and Table 10b below.

Table 10a

Table 10b

第一字段的低位比特Low order bits of the first field	HARQ-ACK时延HARQ-ACK delay
0000	44
0101	77
1010	1010
1111	1313

Alternatively, if the first field includes 3 bits, X is equal to 1, Y is equal to 2, X is the low-order bit, and Y is the high-order bit, the scheduling delay indicated by the value of the first field, and the HARQ-ACK delay can be as shown in Table 11a and shown in Table 11b.

Table 11a

第一字段的高位比特High order bits of the first field	HARQ-ACK时延HARQ-ACK delay
0000	44
0101	77
1010	1010
1111	1313

Table 11b

It can be understood that the above-mentioned Tables 10a to 11b are only exemplary to illustrate the relationship between the value of the first field and its indicated scheduling delay and HARQ-ACK delay, and other relationships may also exist in practical applications. , the scheduling delay and the HARQ-ACK delay may also have other values, which are not specifically limited in this embodiment of the present application.

Based on the examples in Tables 9 to 11b, when N is equal to 14, the scheduling delay of any HARQ process can be 2 time units or 7 time units, so that the network device can schedule more flexibly, thereby improving resource utilization. .

To sum up, the terminal device can determine the first scheduling delay and the first HARQ-ACK delay by interpreting the first field, or reinterpreting the HARQ-ACK delay field, so as to perform data transmission according to them.

Optionally, the network device also sends the third field to the terminal device. Correspondingly, the terminal device also receives a third field from the network device, where the third field is used to indicate an identifier (identifier, ID) of the first HARQ process, so as to notify the terminal device of the HARQ process used for this scheduling. For the description of the third field, reference may be made to the relevant description in the above-mentioned case 1, and details are not repeated here.

Optionally, the above-mentioned first field and third field may be fields in DCI. That is, in this embodiment of the present application, the DCI may include a first field, where the first field may multiplex the HARQ-ACK field, and the third field may be an existing HARQ-ID field. After receiving the DCI, the terminal device can determine the identifier of the HARQ process according to the HARQ-ID field, and determine the scheduling delay and HARQ-ACK delay by reinterpreting the HARQ-ACK field, so as to determine the location of the PDSCH and HARQ-ACK resources. Make subsequent transfers.

Based on this solution, the HARQ-ACK delay can be multiplexed to indicate the scheduling delay, so that there is no need to add extra bits to indicate the scheduling delay, and signaling overhead is saved. In addition, compared with reinterpreting both the HARQ-ACK delay field and the HARQ-ID field in the prior art, only the HARQ-ACK delay field needs to be reinterpreted in this application, which has less impact on the communication protocol.

Case 3: When N HARQ processes are deactivated, the first field can be used to indicate a frequency hopping flag.

That is, the network device may reuse the frequency hopping flag field to indicate the first scheduling delay.

Optionally, in this case, the first field may also be used to indicate a first frequency hopping flag, and the first frequency hopping flag is used to indicate whether all repeated transmissions of the first data are located in the same frequency domain resource. That is to say, the first field may indicate both the first scheduling delay and the first frequency hopping flag.

It can be understood that all repeated transmissions of the first data refer to the number of times the first data is repeated in one transmission, which is different from the retransmission in the HARQ mechanism.

Optionally, the first field may indicate the first scheduling delay and the first frequency hopping flag by means of a joint indication. The first field is used to indicate the first scheduling delay, and may include: the third state of the first field is used to indicate the first scheduling delay; the first field is also used to indicate the first frequency hopping flag, which may include: The third state of a field is also used to indicate the first frequency hopping flag.

Exemplarily, taking the first field including 1 bit as an example, the scheduling delay and the frequency hopping flag indicated by the state of the first field may be as shown in Table 12 or Table 13 below.

Table 12

第一字段first field	调度时延scheduling delay	跳频标志 frequency hopping flag
00	22	enableenable
11	77	disabledisable

Table 13

第一字段first field	调度时延scheduling delay	跳频标志 frequency hopping flag
00	22	disabledisable
11	77	enableenable

Wherein, if the frequency hopping flag is enable, it means that some repetition times of all repeated transmissions of data use different frequency domain resources; if the frequency hopping flag is disable, it means that all repeated transmissions of data use the same frequency domain resources.

It can be understood that the above Table 12 or Table 13 is only an example to illustrate the relationship between the value of the first field and its indicated scheduling delay, and the frequency hopping flag. In practical applications, there may be other relationships. The delay may also have other values, which are not specifically limited in this embodiment of the present application.

It can be understood that, in this case, the first field may not be used to indicate the frequency hopping flag. That is, the first field is only used to indicate the scheduling delay. At this time, it can be agreed that the frequency hopping flag is disabled or enabled by default.

Optionally, the network device may also send the second field and/or the third field to the terminal device. Correspondingly, the terminal device also receives the second field and/or the third field from the network device. For the description of the second field and the third field, reference may be made to the relevant description in the above-mentioned case 1, and details are not repeated here.

Optionally, the above-mentioned first field, second field, and third field may be fields in DCI. That is to say, in this embodiment of the present application, the DCI may include a first field, and the first field may multiplex the frequency hopping flag field, the second field may be the existing HARQ-ACK delay field, and the third field may be the current HARQ-ACK delay field. There is a HARQ-ID field. After receiving the DCI, the terminal device can determine the HARQ process identifier according to the HARQ-ID field, determine the scheduling delay by reinterpreting the frequency hopping flag field, and determine the HARQ-ACK delay through the HARQ-ACK field, thereby determining PDSCH, HARQ - Location of ACK resources for subsequent transmissions.

Based on this solution, the frequency hopping flag field can be multiplexed to indicate the scheduling delay, so that there is no need to add extra bits to indicate the scheduling delay, which saves signaling overhead. In addition, compared with reinterpreting both the HARQ-ACK delay field and the HARQ-ID field in the prior art, only the frequency hopping flag field needs to be reinterpreted in this application, which has less impact on the communication protocol. At the same time, since the HARQ-ACK delay field is not multiplexed in this scheme, there are still 8 or more possibilities for the HARQ-ACK delay. Compared with the existing 14HARQ process scheme, the HARQ-ACK delay can be improved flexibility.

The solution of the present application will be described below with specific examples. Exemplarily, with N being 14, HARQ process 0 to HARQ process 13 correspond to M0 to M13 respectively, M0 to M13 schedule D0 to D13 respectively, and the time unit is a subframe, as shown in FIG. 7 , first, according to an embodiment of the present application , the scheduling delay of M10 to M13 respectively scheduling D10 to D13 may be 7 subframes.

Next, consider the following scenario: Assume that D12#1 scheduled by M12#1 (not shown in FIG. 7 , subframe 0 is the 7th subframe after the subframe where M12#1 is located) is located in subframe 0, and the terminal equipment If the D12#1 is not successfully decoded, the terminal device may feed back the NACK corresponding to D12#1 at A0. At this time, the network device may schedule retransmission for D12#1. If subframe 17 sends M12#2 for scheduling a retransmission of D12#1 (denoted by D12#2), then D12#2 is located in subframe 19.

At this time, it is assumed that M0 to M8 and M13 are located in subframes 18 to 27, respectively, then M9 may be located in subframe 28. Since in the prior art, the scheduling delay of M0 to M9 is fixed at 2 subframes. , D9 is located in subframe 30, then A0 cannot be transmitted in subframe 30. Therefore, subframe 28 cannot transmit MPDCCH, and subframe 35 cannot transmit PDSCH, resulting in waste of resources.

Based on the method provided in this embodiment of the present application, in this scenario, the network device may instruct M9 to schedule D9 with a delay of 7 subframes, then M9 may be located in subframe 28, and D9 may be located in subframe 35, so that at subframe 28 MPDCCH can be transmitted, and PDSCH can be transmitted at subframe 35, thereby making full use of resources and improving resource utilization.

It can be understood that FIG. 7 is only an exemplary description of the application of the embodiment of the application, and does not limit the application scenarios of the embodiments of the application, nor does it limit the solutions of the embodiments of the application.

Wherein, in the embodiment shown in FIG. 6 above, the action of the network device can be executed by the processor 301 in the network device 30 shown in FIG. 3 calling the application code stored in the memory 302 to instruct the network device to execute; In the illustrated embodiment, the action of the terminal device may be invoked by the processor 401 in the terminal device 40 shown in FIG. 3 by calling the application code stored in the memory 402 to instruct the terminal device to execute, which is not limited in this embodiment. .

In the various embodiments of the present application, if there is no special description or logical conflict, the terms and/or descriptions between different embodiments are consistent and can be referred to each other, and the technical features in different embodiments are based on their inherent Logical relationships can be combined to form new embodiments.

It can be understood that, in the above embodiments, the methods and/or steps implemented by terminal equipment may also be implemented by components (such as chips or circuits) that can be used in terminal equipment, and the methods and/or steps implemented by network equipment, It can also be implemented by components that can be used in network equipment.

The foregoing mainly introduces the solutions provided by the embodiments of the present application from the perspective of interaction between various network elements. Correspondingly, an embodiment of the present application further provides a communication device, where the communication device is used to implement the above-mentioned various methods. The communication device may be the terminal device in the foregoing method embodiment, or a device including the foregoing terminal device, or a component usable for the terminal device; or, the communication device may be the network device in the foregoing method embodiment, or including the foregoing A device of a network device, or a component that can be used in a network device. It can be understood that, in order to realize the above-mentioned functions, the communication apparatus includes corresponding hardware structures and/or software modules for executing each function. Those skilled in the art should easily realize that the present application can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

In the embodiments of the present application, the communication device may be divided into functional modules according to the above method embodiments. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. It should be noted that, the division of modules in the embodiments of the present application is schematic, and is only a logical function division, and there may be other division manners in actual implementation.

For example, it is assumed that the communication device is the network device in the foregoing method embodiment. FIG. 8 shows a schematic structural diagram of a network device 80 . The network device 80 includes a processing module 801 and a transceiver module 802 . The transceiver module 802, which may also be called a transceiver unit, is used to implement sending and/or receiving functions, and may be, for example, a transceiver circuit, a transceiver, a transceiver or a communication interface.

The processing module 801 is configured to determine a first scheduling delay, where the first scheduling delay is the delay for scheduling the first data with the downlink control information corresponding to the first HARQ process, and the first HARQ process is any one of the N HARQ processes. HARQ process; the transceiver module 802 is configured to send a first field to the terminal device, where the first field is used to indicate the first scheduling delay; wherein, when the N HARQ processes are deactivated, the first field can be used to indicate any one of the following Item: repetition times of data, HARQ-ACK delay for HARQ acknowledgment, or, frequency hopping flag.

Optionally, the transceiver module 802 is further configured to send a second field to the terminal device, where the second field is used to indicate the second HARQ-ACK delay, and the second HARQ-ACK delay is the second HARQ-ACK The delay of the information relative to the first data, the second HARQ-ACK information is used to feedback whether the first data is successfully transmitted, the second HARQ-ACK delay is J time units, and J is 4, 5, 6, 7, 8, 9, 11 or 13.

Optionally, the transceiver module 802 is further configured to send a third field to the terminal device, where the third field is used to indicate the ID of the first HARQ process, so as to notify the terminal device of the HARQ process used for this scheduling.

Optionally, the transceiver module 802, configured to send the first field to the terminal device, may include: a transceiver module 802, configured to send the downlink control information DCI to the terminal device, where the DCI includes the first field.

Wherein, all relevant contents of the steps involved in the above method embodiments can be cited in the functional descriptions of the corresponding functional modules, which will not be repeated here.

In this embodiment, the network device 80 is presented in the form of dividing each functional module in an integrated manner. "Module" herein may refer to a specific ASIC, circuit, processor and memory executing one or more software or firmware programs, integrated logic circuit, and/or other device that may provide the functions described above. In a simple embodiment, those skilled in the art can imagine that the network device 80 may take the form of the network device 30 shown in FIG. 4 .

For example, the processor 301 in the network device 30 shown in FIG. 4 may execute the instructions by calling the computer stored in the memory 302, so that the network device 30 executes the data scheduling method in the above method embodiment.

Specifically, the functions/implementation process of the processing module 801 and the transceiver module 802 in FIG. 8 can be implemented by the processor 301 in the network device 30 shown in FIG. 4 calling the computer execution instructions stored in the memory 302. Alternatively, the function/implementation process of the processing module 801 in FIG. 8 can be implemented by the processor 301 in the network device 30 shown in FIG. 4 calling the computer execution instructions stored in the memory 302, and the function of the transceiver module 802 in FIG. 8 is implemented. The implementation process can be implemented by the transceiver 303 in the network device 30 shown in FIG. 4 .

Since the network device 80 provided in this embodiment can execute the above-mentioned data scheduling method, reference can be made to the above-mentioned method embodiments for the technical effects that can be obtained, and details are not repeated here.

Or, for example, it is assumed that the communication apparatus is the terminal device in the foregoing method embodiment. FIG. 9 shows a schematic structural diagram of a terminal device 90 . The terminal device 90 includes a processing module 901 and a transceiver module 902 . The transceiver module 902, which may also be called a transceiver unit, is used to implement sending and/or receiving functions, and may be, for example, a transceiver circuit, a transceiver, a transceiver or a communication interface.

The transceiver module 902 is configured to receive a first field from a network device, where the first field is used to indicate the first scheduling delay; when the N HARQ processes are deactivated, the first field can be used to indicate any of the following Item: the number of repetitions of the data, the HARQ-ACK delay for HARQ-ACK request confirmation, or the frequency hopping flag; the processing module 901 is used to determine the first scheduling delay according to the first field, and the first scheduling delay is the first scheduling delay. The downlink control information corresponding to one HARQ process schedules the delay of the first data, and the first HARQ process is any HARQ process among the N HARQ processes.

Optionally, the transceiver module 902 is further configured to receive a second field from the network device, where the second field is used to indicate a second HARQ-ACK delay, and the second HARQ-ACK delay is a second HARQ-ACK delay. The delay of the ACK information relative to the first data, the second HARQ-ACK information is used to feedback whether the first data is successfully transmitted, the second HARQ-ACK delay is J time units, and J is 4, 5, 6, 7 , 8, 9, 11 or 13.

Optionally, the transceiver module 902 is further configured to receive a third field from the network device, where the third field is used to indicate the ID of the first HARQ process, so as to notify the terminal device of the HARQ process used for this scheduling.

Optionally, the transceiver module 902, configured to receive the first field from the network device, may include: a transceiver module 902, configured to receive downlink control information DCI from the network device, where the DCI includes the first field.

In this embodiment, the terminal device 90 is presented in the form of dividing each functional module in an integrated manner. "Module" herein may refer to a specific ASIC, circuit, processor and memory executing one or more software or firmware programs, integrated logic circuit, and/or other device that may provide the functions described above. In a simple embodiment, those skilled in the art can imagine that the terminal device 90 may take the form of the terminal device 40 shown in FIG. 4 .

For example, the processor 401 in the terminal device 40 shown in FIG. 4 may invoke the computer execution instructions stored in the memory 402 to cause the terminal device 40 to execute the data scheduling method in the above method embodiment.

Specifically, the functions/implementation process of the processing module 901 and the transceiver module 902 in FIG. 9 can be implemented by the processor 401 in the terminal device 40 shown in FIG. 4 calling the computer execution instructions stored in the memory 402 . Alternatively, the function/implementation process of the processing module 901 in FIG. 9 can be implemented by the processor 401 in the terminal device 40 shown in FIG. 4 calling the computer execution instructions stored in the memory 402, and the function of the transceiver module 902 in FIG. 9 is implemented. The implementation process can be implemented by the transceiver 403 in the terminal device 40 shown in FIG. 4 .

Since the terminal device 90 provided in this embodiment can execute the above-mentioned data scheduling method, the technical effect that can be obtained may refer to the above-mentioned method embodiments, and details are not repeated here.

Optionally, an embodiment of the present application further provides a communication apparatus (for example, the communication apparatus may be a chip or a chip system), where the communication apparatus includes a processor for implementing the method in any of the foregoing method embodiments. In one possible design, the communication device further includes a memory. The memory is used to store necessary program instructions and data, and the processor can call the program code stored in the memory to instruct the communication apparatus to execute the method in any of the above method embodiments. Of course, the memory may also not be in the communication device. In another possible design, the communication device further includes an interface circuit, which is a code/data read/write interface circuit, and the interface circuit is used to receive computer-executed instructions (the computer-executed instructions are stored in the memory, and may be directly from memory read, or possibly through other devices) and transferred to the processor. When the communication device is a chip system, it may be composed of a chip, or may include a chip and other discrete devices, which is not specifically limited in this embodiment of the present application.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using a software program, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, special purpose computer, computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, optical fiber, digital subscriber line, DSL) or wireless (eg, infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or data storage devices including one or more servers, data centers, etc. that can be integrated with the medium. The usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media (eg, solid state disks (SSDs)), and the like. In this embodiment of the present application, the computer may include the aforementioned apparatus.

Although the application is described herein in conjunction with the various embodiments, those skilled in the art will understand and understand from a review of the drawings, the disclosure, and the appended claims in practicing the claimed application. Other variations of the disclosed embodiments are implemented. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that these measures cannot be combined to advantage.

Although the application has been described in conjunction with specific features and embodiments thereof, it will be apparent that various modifications and combinations can be made therein without departing from the spirit and scope of the application. Accordingly, this specification and drawings are merely exemplary illustrations of the application as defined by the appended claims, and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of this application. Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

A data scheduling method, wherein the method is applied to a system that activates N hybrid automatic repeat request (HARQ) processes, where N is a positive integer greater than or equal to 14, and the method includes:

The network device determines a first scheduling delay, where the first scheduling delay is a delay for scheduling the first data with downlink control information corresponding to the first HARQ process, and the first HARQ process is any one of the N HARQ processes HARQ process;

sending, by the network device, a first field to the terminal device, where the first field is used to indicate the first scheduling delay;

Wherein, when the N HARQ processes are deactivated, the first field can be used to indicate any of the following:

the number of repetitions of the data;

Hybrid automatic repeat request acknowledgment HARQ-ACK delay;

Alternatively, the frequency hopping flag.
A data scheduling method, wherein the method is applied to a system that activates N hybrid automatic repeat request (HARQ) processes, where N is a positive integer greater than or equal to 14, and the method includes:

The terminal device receives a first field from the network device, where the first field is used to indicate a first scheduling delay, and the first scheduling delay is the delay for scheduling the first data with the downlink control information corresponding to the first HARQ process, The first HARQ process is any HARQ process in the N HARQ processes; wherein, when the N HARQ processes are deactivated, the first field can be used to indicate any of the following:

the number of repetitions of the data;

Hybrid automatic repeat request acknowledgment HARQ-ACK delay;

Or, the frequency hopping flag;

The terminal device determines the first scheduling delay according to the first field.
A communication device, characterized in that the communication device is located in a system that activates N hybrid automatic repeat request (HARQ) processes, where N is a positive integer greater than or equal to 14, and the communication device comprises: a processing module and a transceiver module;

The processing module is configured to determine a first scheduling delay, where the first scheduling delay is the delay for scheduling the first data with the downlink control information corresponding to the first HARQ process, and the first HARQ process is the N Any HARQ process in the HARQ process;

the transceiver module, configured to send a first field to the terminal device, where the first field is used to indicate the first scheduling delay;

Wherein, when the N HARQ processes are deactivated, the first field can be used to indicate any of the following:

the number of repetitions of the data;

Hybrid automatic repeat request acknowledgment HARQ-ACK delay;

Alternatively, the frequency hopping flag.
A communication device, characterized in that the communication device activates N hybrid automatic repeat request (HARQ) processes, where N is a positive integer greater than or equal to 14, and the communication device comprises: a processing module and a transceiver module;

The transceiver module is configured to receive a first field from a network device, where the first field is used to indicate a first scheduling delay, and the first scheduling delay is the downlink control information corresponding to the first HARQ process. Data delay, the first HARQ process is any HARQ process in the N HARQ processes; wherein, when the N HARQ processes are deactivated, the first field can be used to indicate any of the following :

the number of repetitions of the data;

Hybrid automatic repeat request acknowledgment HARQ-ACK delay;

Or, the frequency hopping flag;

The processing module is configured to determine the first scheduling delay according to the first field.
The method according to claim 1 or 2, or the communication device according to claim 3 or 4, wherein the first scheduling delay is 2 time units or 7 time units.
The method according to any one of claims 1, 2, or 5, or the communication device according to any one of claims 3-5, wherein, when the N HARQ processes are deactivated, the The first field can be used to indicate the number of repetitions of data;

When the N HARQ processes are activated, the first field is further used to indicate the number of repetitions of the first data.
The method or communication apparatus according to claim 6, wherein the first field is used to indicate the first scheduling delay, comprising: a first state of the first field is used to indicate the first scheduling delay;

The first field is further used to indicate the number of repetitions of the first data, including: the first state of the first field is further used to indicate the number of repetitions of the first data.
The method or communication device according to claim 7, wherein,

The first field is used to indicate the first scheduling delay, including: M high-order bits of the first field are used to indicate the first scheduling delay, and M is a positive integer;

The first field is also used to indicate the number of repetitions of the first data, including: the L low-order bits of the first field are used to indicate the number of repetitions of the first data, and L is a positive integer;

or,

The first field is used to indicate the first scheduling delay, including: M low-order bits of the first field are used to indicate the first scheduling delay, and M is a positive integer;

The first field is further used to indicate the number of repetitions of the first data, including: L high-order bits of the first field are used to indicate the number of repetitions of the first data, and L is a positive integer.
The method or communication device according to any one of claims 6-8, wherein the number of repetitions of the first data is 1, 2, or 4.
The method according to any one of claims 1, 2, or 5, or the communication device according to any one of claims 3-5, wherein, when the N HARQ processes are deactivated, the The first field can be used to indicate the HARQ-ACK delay;

When the N HARQ processes are activated, the first field is further used to indicate a first HARQ-ACK delay, and the first HARQ-ACK delay is the first HARQ-ACK information relative to the first data time delay, the first HARQ-ACK information is used to feed back whether the transmission of the first data is successful.
The method or communication device according to claim 10, wherein the first field is used to indicate the first scheduling delay, comprising: a second state of the first field is used to indicate the first scheduling delay;

The first field is further used to indicate the first HARQ-ACK delay, including: the second state of the first field is further used to indicate the first HARQ-ACK delay.
The method or communication device according to claim 10, wherein,

The first field is used to indicate the first scheduling delay, including: the X high-order bits of the first field are used to indicate the first scheduling delay, and X is a positive integer;

The first field is also used to indicate the first HARQ-ACK delay, including: the Y low-order bits of the first field are used to indicate the first HARQ-ACK delay, and Y is a positive integer;

or,

The first field is used to indicate the first scheduling delay, including: the X lower-order bits of the first field are used to indicate the first scheduling delay, and X is a positive integer;

The first field is also used to indicate the first HARQ-ACK delay, including: Y high-order bits of the first field are used to indicate the first HARQ-ACK delay, and Y is a positive integer.
The method or communication apparatus according to any one of claims 10-12, wherein the first HARQ-ACK delay is N time units, and N is 4, 7, 10, or 13.
The method according to any one of claims 1, 2, or 5, or the communication device according to any one of claims 3-5, wherein, when the N HARQ processes are deactivated, the The first field can be used to indicate a frequency hopping flag;

When the N HARQ processes are activated, the first field is further used to indicate a first frequency hopping flag, where the first frequency hopping flag is used to indicate whether all repeated transmissions of the first data are located in the same frequency domain resource.
The method or communication device of claim 14, wherein:

The first field is used to indicate the first scheduling delay, including: the third state of the first field is used to indicate the first scheduling delay;

The first field is further used to indicate the first frequency hopping flag, including: the third state of the first field is further used to indicate the first frequency hopping flag.
A communication device, characterized in that the communication device comprises: a processor and an interface circuit;

the interface circuit for receiving computer programs or instructions and transmitting them to the processor;

The processor is adapted to execute the computer program or instructions to cause the communication device to perform the method of any of claims 1, 2, or 5-15.
A computer-readable storage medium, characterized in that it includes a computer program or instruction that, when run on a communication device, causes the communication device to perform the method described in any one of claims 1, 2, or 5-15 Methods.