WO2019062153A1

WO2019062153A1 - Indication method and apparatus

Info

Publication number: WO2019062153A1
Application number: PCT/CN2018/087187
Authority: WO
Inventors: 薛祎凡; 王达; 王键; 刘云
Original assignee: 华为技术有限公司
Priority date: 2017-09-30
Filing date: 2018-05-16
Publication date: 2019-04-04
Also published as: CN109600840B; CN109600840A

Abstract

Disclosed are an indication method and apparatus, relating to the field of communications, and solving the problem of communication resource waste caused by indicating redundancy version information when multiple time resource units are scheduled. The specific solution is: a network device generating first information, wherein when the first information schedules the transmission of a single time resource unit of a terminal device, the first information comprises first indication information, and the first indication information is used for indicating redundancy version information, and when the first information schedules the transmission of multiple time resource units of the terminal device, the first information comprises second indication information, and the second indication information is used for indicating information other than the redundancy version information; and the network device sending the first information.

Description

Indication method and device

Technical field

The embodiments of the present application relate to the field of communications technologies, and in particular, to an indication method and apparatus.

Background technique

In a Long Term Evolution (LTE) communication system, a base station sends a Physical Downlink Control Channel (PDCCH), which schedules a Physical Downlink Shared Channel (PDSCH) or a Physical Uplink Shared Channel. (Physical Uplink Shared Channel, PUSCH) is used to transmit data. Generally, the scheduled PDSCH or PUSCH occupies only one subframe, and such a scheduling mode is called single subframe scheduling.

After the PDSCH or PUSCH is transmitted, the receiving end sends an Acknowledgement (ACK) or a Negative Acknowledgment (NACK) to indicate whether the data is successfully received. If the receiving end does not successfully receive data, it will request the sender to retransmit the data. In an incremental redundancy retransmission mode, the bit information retransmitted by the transmitting end does not need to be the same as the bit information of the initial transmission. Instead, a collection of multiple coded bits is generated, but the raw data carried by each collection is the same. When retransmission is required, a different coded bit set than the previous one is usually transmitted, and then the receiving end combines the retransmitted data with the previously transmitted data to improve the correctness of the decoded data.

Among them, the coded bit set of each retransmission is called a redundancy version (RV). Currently, the PDCCH uses multiple bits to indicate the currently transmitted PDSCH or the RV information in the PUSCH, so that the receiving end can decode the received data according to the RV information indicated in the PDCCH.

In the fifth-generation mobile communication technology (5th-Generation, 5G) new communication protocol (New radio, NR), one PDCCH scheduled PDSCH or PUSCH can occupy multiple time slots (or mini-slots), this scheduling mode is called Schedule for multiple time slots (or mini time slots). It is specified in the NR standard that when one PDCCH schedules data for multiple time slots (or mini-slots), the RV used by each time slot (or mini-slot) should follow an RV sequence. Then, the receiving end can directly decode according to the RV sequence specified in the standard. Since the receiving end no longer performs decoding according to the indicated RV information in the PDCCH, indicating the RV information in the PDCCH will cause waste of communication resources.

Summary of the invention

The embodiment of the present invention provides an indication method and device, which solves the problem of indicating redundant version information when scheduling multiple time resource units, which causes waste of communication resources.

To solve the above technical problem, the embodiment of the present invention provides the following technical solutions:

In a first aspect, the embodiment of the present application provides an indication method, where a network device generates first information, where the first information includes a first indication information, and the first information includes a first indication information, where The first indication information is used to indicate the redundancy version information, and when the first information is scheduled to be transmitted by the terminal device, the first information includes second indication information, where the second indication information is used to indicate Other information than redundant version information; the network device transmits the first information.

The time resource unit includes a combination of one or more of a time slot, a mini time slot, and a subframe.

It should be noted that, when the first information scheduling terminal device transmits a single time resource unit, the first information may carry the first indication information by using one or more bits, and when the first information scheduling terminal device transmits the multi-time resource unit, The information may continue to carry the second indication information by using the one or more bits, and may also carry the second indication information by using other bits, which is not limited in the embodiment of the present application.

Compared with the prior art, in the prior art, the redundancy version information of the time resource unit is always indicated in the control signaling, and in most cases of the multi-time resource scheduling mode, indicating the redundancy version information is meaningless, which will Causes waste of communication resources. Therefore, in the embodiment of the present application, the first information indicates different indication information, that is, the first indication information and the second indication information, according to different scheduling modes, so as to avoid waste of communication resources.

Furthermore, since the first information indicates that the redundancy version information is necessary in the single-time resource unit scheduling mode, in the multi-time resource unit scheduling mode, the first information indicating the redundancy version information may be meaningless. Then, if the indication information in the first information is directly deleted in the multi-time resource unit scheduling mode, the length of the first information is different, and the terminal device increases the number of blind detections on the first information, which may increase the terminal device's Processing load. The embodiment of the present application can keep the first information having the same length in different scheduling modes, so as to avoid increasing the number of blind detections of the terminal device, improving the capability of the terminal device, and reducing the power consumption of the terminal device.

In a possible design, the generating, by the network device, the first information comprises: the network device carrying the first information by using a physical downlink control signaling DCI.

In a possible design, the second indication information is used to indicate resource information that the terminal device is scheduled.

In a possible design, the second indication information is used to indicate the number of time resource units that the terminal device is scheduled.

In a possible design, the second indication information is used to indicate time domain resource allocation information of multiple time resource units scheduled by the terminal device. The time domain resource allocation information is used to indicate a location of a time domain symbol used to transmit data in each time resource unit, and/or to indicate a length of a time domain symbol used to transmit data in each time resource unit.

Specifically, if the location of the time domain symbol used for transmitting data in the scheduled time resource unit of the network device is configured in advance, the second indication information directly indicates or is used to indicate a time domain symbol used for transmitting data in each time resource unit. The length, for example, may indicate the relative length of the time domain symbols used to transmit data in each time resource unit. If the length of the time domain symbols used for transmitting data in the time resource unit scheduled by the network device is the same, the second indication information directly indicates or is used to indicate the location of the time domain symbol used for transmitting data in each time resource unit. For example, the relative position of the time domain symbols used to transmit data in each time resource unit can be indicated.

In a possible design, the second indication information is used to indicate frequency resource allocation information of multiple time resource units scheduled by the terminal device.

In one possible design, the frequency resource allocation information is used to indicate a frequency hopping mode between a plurality of scheduled time resource units.

In a possible design, the second indication information is used to indicate a starting location of the multiple time resource units that the terminal device is scheduled.

In a possible design, the second indication information is used to indicate a time domain resource mode of the terminal device, where the time domain resource mode includes an interval between a plurality of time resource units scheduled by the terminal device. The number of time resource units.

In a possible design, the network device generates second information, where the second information includes a scheduling mode configured by the network device for the terminal device, where the scheduling mode includes a single time resource unit scheduling mode and multiple a time resource unit scheduling mode; the network device transmitting the second information.

In a possible design, the generating, by the network device, the second information comprises: using, by the network device, radio resource control protocol (RRC) signaling, or media access control control element MAC CE signaling, or downlink control signaling, DCI carrying The second information is described.

In a second aspect, an indication method provided by the embodiment of the present application includes: the network device generates the first information, where the first information includes a first indication when the first information scheduling terminal device transmits the single time resource unit And the first indication information is used to indicate redundancy version information of the scheduled single time resource unit, where the first information is scheduled to be transmitted by the terminal device, and the first information includes a second indication. And the second indication information is used to indicate redundancy version information of the scheduled multiple time resource units; the network device sends the first information.

Considering that the data transmission is specified in the 5G NR standard, the scheduled multi-time resource unit needs to follow a redundancy version sequence, however, there may be multiple types of sequences in this redundancy version sequence. Therefore, the second indication information in the embodiment of the present application may also be used to indicate which redundancy version sequence is used by the scheduled plurality of time resource units.

In a possible design, the second indication information is used to indicate redundancy version information of the scheduled multiple time resource units, and the second indication information is used to indicate redundancy of the scheduled multiple time resource units. The remaining version of the sequence.

In a third aspect, the embodiment of the present application provides an indication method, including: receiving, by a terminal device, first information sent by a network device, where the first information includes, when the first information scheduling terminal device transmits a single time resource unit, the first information includes a first indication information, where the first indication information is used to indicate redundancy version information, where the first information is scheduled to be transmitted by the terminal device, and the first information includes second indication information, where The second indication information is used to indicate other information than the redundancy version information; the terminal device schedules the time resource unit according to the first information.

In a possible design, the receiving, by the terminal device, the first information sent by the network device comprises: receiving, by the terminal device, the first information that is carried in a downlink control signaling (DCI) sent by the network device.

In a possible design, the second indication information is used to indicate time domain resource allocation information of multiple time resource units scheduled by the terminal device.

In a possible design, the time domain resource allocation information is used to indicate the location of the time domain symbol used to transmit data in each time resource unit, and/or to indicate the time for transmitting data in each time resource unit. The length of the field symbol.

In a possible design, the frequency resource allocation information is used to indicate a frequency hopping mode between a plurality of scheduled time resource units.

In a possible design, the second indication information is used to indicate a time domain resource mode of the terminal device, where the time domain resource mode includes a time interval between a plurality of time resource units scheduled by the terminal device. The number of resource units.

In a possible design, the terminal device receives the second information, where the second information includes a scheduling mode configured by the network device for the terminal device, where the scheduling mode includes a single time resource unit scheduling mode and multiple times. Resource unit scheduling mode.

In a possible design, the receiving, by the terminal device, the second information comprises: receiving, by the terminal device, a radio resource control protocol RRC signaling sent by the network device, or a media access control control element MAC CE signaling, or a downlink The control signaling DCI carries the second information.

In one possible design, the time resource unit includes a combination of one or more of a time slot, a mini time slot, and a subframe.

In a fourth aspect, an indication method provided by the embodiment of the present application includes: receiving, by a terminal device, first information sent by a network device, where the first information scheduling terminal device transmits a single time resource unit, the first information The first indication information is used to indicate redundancy version information of the scheduled single time resource unit, where the first information is scheduled to be transmitted by the terminal device when the multi-time resource unit is transmitted, the first information The second indication information is used to indicate redundancy version information of the scheduled multiple time resource units; the terminal device schedules the time resource unit according to the first information.

In a fifth aspect, the embodiment of the present application provides a network device, including: a processing unit, configured to generate first information, where the first information includes, when the first information scheduling terminal device transmits a single time resource unit, the first information includes An indication information, where the first indication information is used to indicate redundancy version information, and when the first information is scheduled to be transmitted by the terminal device, the first information includes second indication information, and the second information The indication information is used to indicate other information than the redundancy version information; and the communication unit is configured to send the first information generated by the processing unit.

In a possible design, the processing unit is configured to carry the first information by using physical downlink control signaling (DCI).

In a possible design, the processing unit is further configured to generate second information, where the second information includes a scheduling mode configured by the network device for the terminal device, where the scheduling mode includes single time resource unit scheduling a mode and a multi-time resource unit scheduling mode; the communication unit is further configured to send the second information generated by the processing unit.

In a possible design, the processing unit is further configured to generate the second information, where the network device uses radio resource control protocol RRC signaling, or media access control control element MAC CE signaling, or downlink control signaling. The DCI carries the second information.

In a sixth aspect, a network device includes: a processing unit, configured to generate first information, where the first information includes a first indication information when the first information scheduling terminal device transmits a single time resource unit, where The first indication information is used to indicate the redundancy version information of the scheduled single time resource unit. When the first information is scheduled to be transmitted by the terminal device, the first information includes the second indication information. The second indication information is used to indicate redundancy version information of the scheduled multiple time resource units, and the communication unit is configured to send the first information generated by the processing unit.

A seventh aspect, a network device, comprising: a processor, a memory, a bus, and a communication interface; the memory is configured to store a computer execution instruction, and the processor is connected to the memory through the bus, and when the network device is running, the processing The computer executes the computer-executable instructions stored by the memory to cause the network device to perform the method of any of the above aspects.

In an eighth aspect, a terminal device includes: a processor, a memory, a bus, and a communication interface; the memory is configured to store a computer execution instruction, and the processor is connected to the memory through the bus, and when the terminal device is running, the processing The computer executes the computer-executable instructions stored by the memory to cause the terminal device to perform the method as described in any of the above aspects.

In a ninth aspect, a chip is coupled to a memory for reading and executing a program stored in the memory to enable the network device to perform the method of any of the above aspects.

In a tenth aspect, a chip is coupled to a memory for reading and executing a program stored in the memory to enable the terminal device to perform the method of any of the above aspects.

In an eleventh aspect, an embodiment of the present application provides a computer readable storage medium, configured to store computer software instructions used by the network device, when executed on a computer, to enable the computer to perform any of the foregoing aspects. method.

In a twelfth aspect, the embodiment of the present application provides a computer readable storage medium for storing computer software instructions used by the terminal device, when the computer is running on a computer, so that the computer can perform any of the above aspects. method.

In a thirteenth aspect, the embodiments of the present application provide a computer program product comprising instructions that, when run on a computer, cause the computer to perform the method of any of the above aspects.

In a fourteenth aspect, the embodiment of the present application provides a system, including the network device of any of the foregoing aspects, and the terminal device of any of the foregoing aspects.

DRAWINGS

FIG. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application;

2 is a schematic structural diagram of a network device according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure;

FIG. 4 is a schematic flowchart diagram of an indication method according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of an achievable manner of a second indication information according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of an achievable manner of still another second indication information according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of an implementation manner of still another second indication information according to an embodiment of the present disclosure;

FIG. 8 is a schematic diagram of an implementation manner of still another second indication information according to an embodiment of the present disclosure;

FIG. 9 is a schematic diagram of an implementation manner of still another second indication information according to an embodiment of the present disclosure;

FIG. 10 is a schematic flowchart diagram of still another indication method according to an embodiment of the present disclosure;

FIG. 11 is a schematic structural diagram of still another network device according to an embodiment of the present application;

FIG. 12 is a schematic structural diagram of still another terminal device according to an embodiment of the present application.

Detailed ways

Embodiments of the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

1 is a simplified schematic diagram of a system architecture to which embodiments of the present application may be applied. As shown in FIG. 1, the system architecture may include: a terminal device 11 and a network device 12.

Among them, the terminal device 11 is a device that provides voice and/or data connectivity to the user. For example, mobile phones, tablets, laptops, ultra-mobile personal computers (UMPCs), netbooks, personal digital assistants (PDAs), and the like. As an embodiment, as shown in FIG. 3, the system architecture of the present application includes a terminal device 11 that is a mobile phone. The terminal device communicates with the base station through wireless communication technology. The wireless communication technology described in the embodiment of the present application is a 5G communication technology.

The network device 12 described in the present application, that is, a network side device, such as a base station, that provides communication services for the UE in the wireless communication system. In different systems of wireless communication systems, base stations may have different names, but are all understood to be base stations described in this application. The embodiment of the present application does not specifically limit the type of the base station. For example, a base station in a Universal Mobile Telecommunications System (UMTS) is called a base station (BS); a base station in an LTE system is called an evolved Node B (eNB), etc. No more enumeration. Any network side device that provides communication services for the UE in the wireless communication system can be understood as the base station described in this application. The network device 12 described in this embodiment of the present application may be a base station in a 5G network.

FIG. 2 is a schematic diagram of a network device 12 according to an embodiment of the present disclosure. The network device 12 in FIG. 1 can be implemented in the manner of the base station in FIG. 2 . As shown in FIG. 2, the base station may include at least one processor 21, a memory 22, a communication interface 23, and a communication bus 24.

The following describes the components of the base station in detail with reference to FIG. 2:

The processor 21 is a control center of the base station, and may be a processor or a collective name of a plurality of processing elements. For example, the processor 21 is a central processing unit (CPU), may be an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application. For example, one or more microprocessors (Digital Signal Processors, DSPs), or one or more Field Programmable Gate Arrays (FPGAs).

Among other things, the processor 21 can perform various functions of the base station by running or executing a software program stored in the memory 22 and calling data stored in the memory 22.

In a particular implementation, as an embodiment, processor 21 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG.

In a particular implementation, as an embodiment, a base station can include multiple processors, such as processor 21 and processor 25 shown in FIG. Each of these processors can be a single core processor (CPU) or a multi-core processor (multi-CPU). A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data, such as computer program instructions.

The memory 22 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type that can store information and instructions. The dynamic storage device can also be an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical disc storage, and a disc storage device. (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be Any other media accessed, but not limited to this. Memory 22 may be present independently and coupled to processor 21 via communication bus 24. The memory 22 can also be integrated with the processor 21.

The memory 22 is used to store a software program that executes the solution of the present application, and is controlled by the processor 21 for execution.

The communication interface 23 uses a device such as any transceiver for communicating with other devices or communication networks, such as Ethernet, radio access network (RAN), Wireless Local Area Networks (WLAN), etc. . The communication interface 23 may include a receiving unit that implements a receiving function, and a transmitting unit that implements a transmitting function.

The communication bus 24 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 2, but it does not mean that there is only one bus or one type of bus.

The device structure shown in FIG. 2 does not constitute a limitation to a base station, and may include more or less components than those illustrated, or some components may be combined, or different component arrangements.

FIG. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure. The terminal device 11 in FIG. 1 may be implemented in the manner of the terminal device in FIG. 3 . As shown in FIG. 3, the terminal device may include at least one processor 31, a memory 32, a display 33, and a transceiver 34.

The following describes the components of the terminal device in detail with reference to FIG. 3:

The processor 31 is a control center of the terminal device, and may be a processor or a collective name of a plurality of processing elements. For example, processor 31 is a CPU, and may be an ASIC, or one or more integrated circuits configured to implement embodiments of the present application, such as one or more DSPs, or one or more FPGAs. Among them, the processor 31 can perform various functions of the terminal device by running or executing a software program stored in the memory 32 and calling data stored in the memory 32.

In a particular implementation, as an embodiment, processor 31 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG.

In a particular implementation, as an embodiment, the terminal device can include multiple processors, such as processor 31 and processor 35 shown in FIG. Each of these processors can be a single-CPU processor or a multi-CPU processor. A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data, such as computer program instructions.

Memory 32 may be a ROM or other type of static storage device that may store static information and instructions, RAM or other types of dynamic storage devices that may store information and instructions, or may be EEPROM, CD-ROM or other optical disk storage, optical disk storage. (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be Any other media accessed, but not limited to this. Memory 32 may be present independently and coupled to processor 31 via communication bus 36. The memory 32 can also be integrated with the processor 31. The memory 32 is used to store a software program that executes the solution of the present application, and is controlled by the processor 31 for execution.

The display 33 can be used to display information input by the user or information provided to the user as well as various menus of the terminal device. The display panel 33 may include a display panel 331. Alternatively, the display panel 331 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

Transceiver 34, using any type of transceiver, is used to communicate with other devices or communication networks, such as Ethernet, RAN, WLAN, and the like. The transceiver 34 may include a receiving unit to implement a receiving function, and a transmitting unit to implement a transmitting function.

The device structure shown in FIG. 3 does not constitute a limitation to the terminal device, and may include more or less components than those illustrated, or a combination of certain components, or different component arrangements. Although not shown, the terminal device may further include a battery, a camera, a Bluetooth module, a Global Positioning System (GPS) module, and the like, and details are not described herein again.

For a better understanding of the technical solution provided by the embodiment of the present application, the following data transmission is taken as an example, and the data scheduling process and the scheduling mode of the terminal device 11 are first described.

The scheduling process of the downlink data is: the base station sends a PDCCH, and the PDCCH schedules one PDSCH, where the PDSCH is used to transmit downlink data. After the PDSCH is transmitted, the terminal device sends a PUCCH, where the PUSCCH includes an ACK or a NACK for the downlink data, and is used to indicate whether the terminal device successfully receives the downlink data.

It should be noted that if the PDSCH or the PUSCH scheduled by the PDCCH occupies one time resource unit, the scheduling mode is a single time resource unit scheduling mode, and if the PDSCH or PUSCH scheduled by the PDCCH occupies multiple time resource units, the scheduling mode is used. Scheduling mode for multiple time resource units. The time resource unit includes a combination of one or more of a slot, a mini-slot, and a subframe.

If the base station does not successfully receive the uplink data or the terminal device does not successfully receive the downlink data, the terminal device or the base station is requested to retransmit the data. The following uses the incremental redundancy retransmission mode as an example to describe the process of retransmitting the data.

In order to detect whether the received data is in error, an error detection code is usually used when transmitting data, for example, Cyclic Redundancy Check (CRC). Similarly, in order to improve the correct rate of decoding at the receiving end, the bit information retransmitted by the transmitting end is different from the original transmitted bit information, and the bit information of each retransmission is also different, thus generating a set of a plurality of coded bits. The set of coded bits for each retransmission is called a redundancy version. In order for the receiving end to be able to effectively decode the received data, the transmitting end indicates the redundancy version information of the currently used PDSCH or PUSCH in the PDCCH, so that the receiving end can decode the data according to the indicated redundancy version information. For single time resource unit scheduling mode, indicating redundancy version information is necessary. For multi-time resource management scheduling mode, indicating redundant version information may not be necessary. For example, when the PDCCH schedules multiple time resource units in the PDCCH standard, the RV used by the PSDSCH or PUSCH should follow a redundancy version sequence. Then, the receiving end can directly decode according to the redundancy version sequence specified in the standard. Since the receiving end no longer performs decoding according to the indicated redundancy version information in the PDCCH, indicating the redundancy version information in the PDCCH will cause waste of communication resources.

To this end, the embodiment of the present application provides an indication method, where the scheduling of the following data is taken as an example, that is, when the network device schedules a single time resource unit, the redundancy version information is indicated, and when the network device schedules the multiple time resource unit, the indication is Redundancy version information of the scheduled multi-time resource unit, or resource information indicating that the terminal device is scheduled. Specifically, as follows:

FIG. 4 is a flowchart of a method for indicating a method according to an embodiment of the present application. The terminal device and the network device included in the communication system shown in FIG. 1 are as shown in FIG. 4, and the method may include:

101. The network device generates first information.

The first information may be Downlink Control Information (DCI), or may be other signaling for scheduling the time resource unit of the terminal device to transmit data, which is not limited in this embodiment.

The time resource unit includes a combination of one or more of a slot, a mini-slot, and a subframe.

Specifically, when the first information scheduling terminal device transmits the single time resource unit, the first information includes first indication information, the first indication information is used to indicate redundancy version information, and the first information is used to schedule the terminal. When the device transmits the multi-time resource unit, the first information includes second indication information, where the second indication information is used to indicate redundancy version information of the multi-time resource unit, or is used to indicate other than the redundancy version information. other information. The redundancy version information indicated by the first indication information includes a value of a redundancy version used by the transmission data in the time resource unit scheduled by the terminal device. The redundancy version information of the multi-time resource unit indicated by the second indication information includes a redundancy version sequence used by the time resource unit scheduled by the terminal device, and the information indicated by the second indication information other than the redundancy version includes the terminal device being The resource information called, the resource information includes time domain resources and frequency domain resources. The content and manner of the indication of the second indication information will be explained below, and the details are not repeated herein.

For example, in the downlink data scheduling process, if the DCI schedules a single-time resource unit, the DCI uses 2 bits to indicate the first indication information, that is, the redundancy version information indicating the data used by the current time resource unit. If the DCI is scheduling a multi-time resource unit, the DCI may continue to use the 2 bits to indicate the second indication information, that is, the redundancy version sequence indicating the scheduled multi-time resource unit, or indicate the redundancy version information. Additional information.

102. The network device sends the first information.

Specifically, the network device sends the first information to the terminal device. Optionally, the network device may send the data before, after, or at the same time as the time resource unit of the scheduling terminal device, which is not limited in this embodiment.

The embodiment of the present application provides an indication method, including: the network device generates the first information, and if the first information is used to schedule the single time resource unit of the terminal device, the first information includes the first indication information, and is used to indicate the redundancy version information. . If the first information is used to schedule a multi-time resource unit of the terminal device, the first information includes second indication information, and the second indication information is used for redundancy version information of multiple time resource units scheduled by the terminal device, or indicates redundancy Other information than the version information. Compared with the prior art, in the prior art, the redundancy version information of the time resource unit is always indicated in the control signaling, and in most cases of the multi-time resource scheduling mode, indicating the redundancy version information is meaningless, which will Causes waste of communication resources. Therefore, in the embodiment of the present application, the first information indicates different indication information, that is, the first indication information and the second indication information, according to different scheduling modes, so as to avoid waste of communication resources.

The following describes the content and manner of the indication of the second indication information, as follows:

Optionally, in a specific implementation manner, the second indication information may be used to indicate the number of time resource units that the terminal device is scheduled. The terminal device is configured with two time resource units, and two bits are used to indicate the second indication information as an example. The meaning of the second indication information is as shown in Table 1:

Table 1 Correspondence between the second indication information and the number of time resource units

第二指示信息的值The value of the second indication	调度的时间资源单元的数量The number of scheduled time resource units
0000	22
0101	33
1010	44
1111	55

It should be noted that, the more the number of bits used by the second indication information, the more the number of scheduled time resource units that can be represented, and the more the correspondence between the second indication information and the number of time resource units, Table 1 For the example of the corresponding relationship, the specific correspondence is not limited in the embodiment of the present application.

Optionally, in a specific implementation manner, the second indication information may be used to indicate time domain resource allocation information of the multiple time resource units scheduled by the terminal device. The time domain resource allocation information is used to indicate the location of the time domain symbol used to transmit data in each time resource unit, and/or to indicate the length of the time domain symbol used to transmit data in each time resource unit.

The terminal device is configured to allocate two time resource units, and 2 bits are used to indicate the second indication information as an example. The network device pre-configures the time domain symbols of the two time resource units for transmitting data to have the same location, then The second indication information is directly used to indicate the relative length of the time domain symbols used to transmit data in the two time resource units, as shown in Table 2:

Table 2 Correspondence between the second indication information and the length of the time domain symbol

As shown in FIG. 5, the value of the second indication information is 11 in detail. As shown in FIG. 5, one time resource unit includes 14 time domain symbols, and it is assumed that the network device pre-configures the two time resource units for transmitting data. The position of the time domain symbol is transmitted from the 4th time domain symbol. The time domain symbol used by the first time resource unit for transmitting data is 11 time domain symbols, and then the time domain symbol used by the second time resource unit for transmitting data is 9 time domain symbols.

It should be noted that, the more the number of bits used by the second indication information, the more the relative length of each time resource unit that can be represented, and the more the correspondence between the second indication information and the relative length of each time resource unit. The second embodiment is only an example of the corresponding relationship, and the specific correspondence is not limited in the embodiment of the present application.

The network device pre-configures the lengths of the time domain symbols used by the two time resource units for transmitting data to be the same, and the second indication information is directly used to indicate the relative positions of the time domain symbols used for transmitting data in the two time resource units. As shown in Table 3:

Table 3 Correspondence between the second indication information and the time domain symbol position

The following describes the value of the second indication information in detail with reference to FIG. 6. As shown in FIG. 6, one time resource unit includes 14 time domain symbols, and it is assumed that the network device pre-configures the two time resource units for transmitting data. The length of the time domain symbol is 9 time domain symbols. The first time resource unit starts transmitting data from the fourth time domain symbol, then the second time resource unit starts transmitting data from the fifth time domain symbol.

It should be noted that, the more the number of bits used by the second indication information, the more the relative positions of the respective time resource units that can be represented, and the more the correspondence between the second indication information and the relative positions of the respective time resource units, the table The second embodiment is only an example of the corresponding relationship, and the specific correspondence is not limited in the embodiment of the present application.

Optionally, in a specific implementation manner, the second indication information is used to indicate frequency resource allocation information of the multiple time resource units that are scheduled by the terminal device. The frequency resource allocation information includes a frequency hopping mode indicating a plurality of time resource units scheduled. Two terminal resource units are scheduled by the terminal device, and two bits are used to indicate the second indication information as an example. The meaning of the second indication information is as shown in Table 4:

Table 4 Correspondence between the second indication information and the frequency hopping mode

第二指示信息的值The value of the second indication	跳频模式Frequency hopping mode
0000	不跳频No frequency hopping
0101	相隔半个频带Half a band apart
1010	相隔+1/4个频带+1/4 band apart
1111	相隔-1/4个频带Separated by -1/4 bands

As shown in FIG. 7, FIG. 7 shows four hopping modes corresponding to the values of the second indication information 00, 01, 10, and 11.

It should be noted that, the more the number of bits used by the second indication information, the more frequency hopping modes are available between the respective time resource units, and the corresponding relationship between the second indication information and the frequency hopping mode is also increased. For the example of the corresponding relationship, the specific correspondence is not limited in the embodiment of the present application.

Optionally, in a specific implementation, the second indication information is used to indicate a starting location of the multiple time resource units that are scheduled by the terminal device, for example, the scheduled multiple time resource units are separated from the first information interval. The number of time resource units. Two terminal resource units are scheduled by the terminal device, and two bits are used to indicate the second indication information as an example. The meaning of the second indication information is as shown in Table 5:

Table 5 Correspondence between the second indication information and the starting position of the time resource unit

As shown in FIG. 8, when the value of the second indication information is 00, the time resource unit that the terminal device is scheduled is in the next time resource unit of the first information. When the value of the second indication information is 01, the time resource unit scheduled by the terminal device is separated from the first information by one time resource unit. When the value of the second indication information is 10, the time resource unit scheduled by the terminal device is separated from the first information by 2 time resource units.

It should be noted that, the more the number of bits used by the second indication information, the more the start position of the time resource unit that can be represented, and the more the correspondence between the second indication information and the start position of the time resource unit, the table The second embodiment is only an example of the corresponding relationship, and the specific correspondence is not limited in the embodiment of the present application.

Optionally, in a specific implementation manner, the second indication information is used to indicate a time domain resource mode of the terminal device, where the time domain resource mode includes a time interval between the multiple time resource units scheduled by the terminal device. The number of resource units. The terminal device is scheduled to have three time resource units, and two bits are used to indicate the second indication information as an example for description.

As shown in FIG. 9, when the value of the second indication information is 00, the time resource unit is not spaced between the three time resource units scheduled by the terminal device. When the value of the second indication information is 01, the first time resource unit scheduled by the terminal device and the second time resource unit are separated by one time resource unit, and the second time management resource unit and the third time management resource unit There is no time between resource units. When the value of the second indication information is 10, the first time resource unit and the second time resource unit scheduled by the terminal device are not separated by the time resource unit, and the second time management resource unit is separated from the third time management resource unit. 1 time resource unit.

It should be noted that, the more the number of bits used by the second indication information, the more the time domain resource mode between the scheduled time resource units, and the corresponding relationship between the second indication information and the time domain resource mode of the time resource unit. The more the number of the correspondences, the more specific ones of the corresponding relationship are not limited.

Optionally, in a specific implementation manner, when a data transmission is specified in the 5G NR standard, the scheduled multi-time resource unit needs to follow a redundancy version sequence, but the redundancy version sequence may exist in multiple A sequence of types. Therefore, the second indication information in the embodiment of the present application may also be used to indicate which redundancy version sequence is used by the scheduled plurality of time resource units. The first information is used to indicate the second indication information as an example, and the second indication information is expressed as shown in Table 6.

Table 6 Correspondence between the second indication information and the redundancy version sequence

第二指示信息的值The value of the second indication	冗余版本序列Redundant version sequence
0000	0-1-2-3循环0-1-2-3 cycle
0101	0-2-3-1循环0-2-3-1 cycle
1010	1-0-2-3循环1-0-2-3 cycle
1111	2-1-0-3循环2-1-0-3 cycle

For example, when the value of the second indication information is 00, the redundancy version sequence is a 0-2-3 loop, indicating that the value of the redundancy version used by the scheduled plurality of time resource units is in accordance with 0-1-2- 3 cycles.

It should be noted that the more the number of bits used by the second indication information, the more redundant sequence sequences that can be represented, and the more the correspondence between the second indication information and the redundancy version sequence, and Table 2 is only these correspondences. For example, the specific correspondence between the embodiments of the present application is not limited.

As shown in FIG. 10, the embodiment of the present application further provides an indication method, including:

201. The network device generates second information.

The second information may be carried in a Radio Resource Control (RRC) or a Media Access Control Control Element (MAC CE) signaling, and the second information may also be carried in the DCI. The signaling in the second embodiment does not limit the signaling that carries the second information. The second information includes a scheduling mode configured by the network device for the terminal device. The scheduling mode includes a single time resource unit scheduling mode and a multi-time resource scheduling mode.

Exemplarily, the control signaling carrying the second information may use 1 bit to indicate the scheduling mode of the terminal device, for example, the value of the 1 bit is 0, indicating that the terminal device is a single time resource unit scheduling mode; A bit value of 1 indicates that the terminal device is in a multi-time resource unit mode. The specific manner of indicating the scheduling mode is not limited in the embodiment of the present application.

Optionally, the second information may also indicate a specific indication content of the second indication information in the first information. For example, the second indication information is explicitly indicated to indicate the number of time resource units scheduled by the terminal device, or the redundant version sequence of the plurality of time resource units scheduled, and the like. The embodiment of the present application is not limited.

202. The network device sends the second information.

It should be noted that the network device may send the second information to the terminal, or broadcast the second information. The network device may send the second information before, after, or at the same time as the first information is sent, which is not limited in this embodiment. The second information and the first information may also be carried in different control signaling, and may also be carried in the same control signaling, which is not limited in the embodiment of the present application.

The solution provided by the embodiment of the present invention is mainly introduced from the perspective of interaction between the network elements. It can be understood that each network element, such as a network device and a terminal device, in order to implement the above functions, includes hardware structures and/or software modules corresponding to each function. Those skilled in the art will readily appreciate that the present invention can be implemented in a combination of hardware or hardware and computer software in combination with the algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

The embodiments of the present invention may divide the function modules of the network device and the terminal device according to the foregoing method. For example, each function module may be divided according to each function, or two or more functions may be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present invention is schematic, and is only a logical function division, and the actual implementation may have another division manner.

FIG. 11 is a schematic diagram showing a possible composition of the network device involved in the foregoing and the embodiment. As shown in FIG. 11, the network device 1100 may include: a processing unit. 1101 and a transmitting unit 1102.

The processing unit 1101 is configured to support the network device 1100 to perform step 101 in the indication method shown in FIG. 4 and step 201 in the indication method shown in FIG.

The communication unit 1102 is configured to support the network device 1100 to perform step 102 in the indication method shown in FIG. 4 and step 202 in the indication method shown in FIG.

It should be noted that all the related content of the steps involved in the foregoing method embodiments may be referred to the functional descriptions of the corresponding functional modules, and details are not described herein again.

The processing unit 1101 can be a processor or a controller. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. The processor can also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like. The communication unit 1102 can be a transceiver, a transceiver circuit, a communication interface, or the like. The network device also includes a storage unit 1103, which may be a memory.

When the processing unit 1101 is a processor, the communication unit 1102 is a communication interface, and the storage unit 1103 is a memory, the network device 1100 according to the embodiment of the present invention may be the network device 12 shown in FIG.

FIG. 12 is a schematic diagram showing a possible composition of the terminal device involved in the foregoing and the embodiment. As shown in FIG. 12, the terminal device 1200 may include: a communication unit. 1201 and processing unit 1202.

The communication unit 1201 is configured to support the terminal device 1200 to receive the first information, the second information, and the like sent by the network device 1100.

The processing unit 1102 is configured to support the terminal device 1200 to schedule a time resource unit for transmitting data and the like.

The processing unit 1202 can be a processor or a controller. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. The processor can also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like. The communication unit 1201 may be a transceiver, a transceiver circuit, a communication interface, or the like. The network device also includes a storage unit 1203, which may be a memory.

When the processing unit 1202 is a processor, the communication unit 1201 is a communication interface, and the storage unit 1203 is a memory, the network device 1200 according to the embodiment of the present invention may be the network device 11 shown in FIG.

Through the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of the above functional modules is illustrated. In practical applications, the above functions can be allocated according to needs. It is completed by different functional modules, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.

In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be used. The combination may be integrated into another device, or some features may be ignored or not performed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may be one physical unit or multiple physical units, that is, may be located in one place, or may be distributed to multiple different places. . Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a readable storage medium. Based on such understanding, the technical solution of the embodiments of the present invention may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a device (which may be a microcontroller, chip, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions within the technical scope of the present invention should be covered by the scope of the present invention. . Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

An indication method, comprising:

The first information is generated by the network device, where the first information is sent by the first time resource unit, the first information includes first indication information, and the first indication information is used to indicate redundancy version information. When the first information is scheduled to be transmitted by the terminal device in a multi-time resource unit, the first information includes second indication information, and the second indication information is used to indicate other information than the redundancy version information;

The network device sends the first information.
The method according to claim 1, wherein the generating, by the network device, the first information comprises: the network device carrying the first information by using a physical downlink control signaling DCI.
The method according to claim 1, wherein the second indication information is used to indicate resource information that the terminal device is scheduled.
The method according to claim 3, wherein the second indication information is used to indicate the number of time resource units that the terminal device is scheduled.
The method according to claim 3, wherein the second indication information is used to indicate time domain resource allocation information of the plurality of time resource units scheduled by the terminal device.
The method according to claim 5, wherein the time domain resource allocation information is used to indicate a location of a time domain symbol for transmitting data in each time resource unit, and/or to indicate each time resource unit The length of the time domain symbol used to transfer data.
The method according to claim 3, wherein the second indication information is used to indicate frequency resource allocation information of a plurality of time resource units scheduled by the terminal device.
The method according to claim 7, wherein the frequency resource allocation information is used to indicate a frequency hopping mode between a plurality of scheduled time resource units.
The method according to claim 3, wherein the second indication information is used to indicate a starting location of the plurality of time resource units in which the terminal device is scheduled.
The method according to claim 3, wherein the second indication information is used to indicate a time domain resource mode of the terminal device, and the time domain resource mode includes a plurality of time resources that are scheduled by the terminal device. The number of time resource units separated by units.
The method according to any one of claims 1 to 10, wherein the method further comprises:

The network device generates second information, where the second information includes a scheduling mode configured by the network device for the terminal device, where the scheduling mode includes a single time resource unit scheduling mode and a multi-time resource unit scheduling mode;

The network device sends the second information.
The method according to claim 11, wherein the generating, by the network device, the second information comprises using, by the network device, radio resource control protocol (RRC) signaling, or media access control control element MAC CE signaling, or downlink control The signaling DCI carries the second information.
The method according to any one of claims 1 to 12, wherein the time resource unit comprises a combination of one or more of a time slot, a mini time slot, and a subframe.
An indication method, comprising:

The first information is used by the network device to generate the first information, where the first information includes a first indication information, and the first indication information is used to indicate a single time resource that is scheduled. The redundancy information of the unit, where the first information is scheduled to be transmitted by the terminal device, and the first information includes second indication information, where the second indication information is used to indicate multiple times scheduled Redundancy version information of the resource unit;

The network device sends the first information.
The method according to claim 1, wherein the second indication information is used to indicate redundancy version information of the scheduled plurality of time resource units, and the second indication information is used to indicate that the scheduled information is more A sequence of redundant versions of time resource units.
An indication method, comprising:

Receiving, by the terminal device, the first information sent by the network device, where the first information scheduling terminal device transmits the single time resource unit, the first information includes first indication information, and the first indication information is used to indicate redundancy a version information, where the first information is scheduled to be transmitted by the terminal device, and the first information includes second indication information, where the second indication information is used to indicate other information except the redundancy version information. ;

The terminal device schedules a time resource unit according to the first information.
The method according to claim 16, wherein the receiving, by the terminal device, the first information sent by the network device comprises: receiving, by the terminal device, the downlink control signaling (DCI) sent by the network device a message.
The method according to claim 16, wherein the second indication information is used to indicate resource information that the terminal device is scheduled.
The method according to claim 18, wherein the second indication information is used to indicate the number of time resource units that the terminal device is scheduled.
The method according to claim 18, wherein the second indication information is used to indicate time domain resource allocation information of the plurality of time resource units scheduled by the terminal device.
The method according to claim 20, wherein the time domain resource allocation information is used to indicate a location of a time domain symbol for transmitting data in each time resource unit, and/or to indicate each time resource unit The length of the time domain symbol used to transfer data.
The method according to claim 18, wherein the second indication information is used to indicate frequency resource allocation information of a plurality of time resource units scheduled by the terminal device.
The method according to claim 22, wherein the frequency resource allocation information is used to indicate a frequency hopping mode between a plurality of scheduled time resource units.
The method according to claim 18, wherein the second indication information is used to indicate a starting location of the plurality of time resource units scheduled by the terminal device.
The method according to claim 18, wherein the second indication information is used to indicate a time domain resource mode of the terminal device, and the time domain resource mode includes a plurality of time resources that are scheduled by the terminal device. The number of time resource units separated by units.
The method according to any one of claims 16-25, wherein the method further comprises: the terminal device receiving the second information, the second information including a scheduling mode configured by the network device for the terminal device, The scheduling mode includes a single time resource unit scheduling mode and a multi-time resource unit scheduling mode.
The method according to claim 26, wherein the receiving, by the terminal device, the second information comprises: receiving, by the terminal device, a radio resource control protocol RRC signaling sent by the network device, or a media access control control element MAC The CE signaling or the downlink control signaling DCI carries the second information.
The method according to any one of claims 16 to 27, wherein the time resource unit comprises a combination of one or more of a time slot, a mini time slot, and a subframe.
An indication method, comprising:

Receiving, by the terminal device, the first information sent by the network device, where the first information scheduling terminal device transmits the single time resource unit, the first information includes first indication information, and the first indication information is used to indicate that the information is scheduled. Redundancy version information of a single time resource unit, when the first information is scheduled to be transmitted by the terminal device, the first information includes second indication information, and the second indication information is used to indicate that the information is scheduled. Redundant version information for multiple time resource units;

The terminal device schedules a time resource unit according to the first information.
The method according to claim 29, wherein the second indication information is used to indicate redundancy version information of the scheduled plurality of time resource units, wherein the second indication information is used to indicate that the scheduled information is A sequence of redundant versions of time resource units.
A network device, comprising: a processor, a memory, a bus, and a communication interface; the memory is configured to store a computer to execute an instruction, the processor is connected to the memory through the bus, and when the network device is running, the processing The computer executes the computer-executable instructions stored by the memory to cause the network device to perform the method of any of claims 1-15.
A terminal device, comprising: a processor, a memory, a bus, and a communication interface; the memory is configured to store a computer execution instruction, and the processor is connected to the memory through the bus, and when the terminal device is running, the processing The computer executes the computer-executable instructions stored by the memory to cause the terminal device to perform the method of any one of claims 16-30.
A chip, characterized in that the chip is connected to a memory for reading and executing a program stored in the memory to implement the method of any one of claims 1-15.
A chip, characterized in that the chip is connected to a memory for reading and executing a program stored in the memory to implement the method of any one of claims 16-30.