WO2018227837A1

WO2018227837A1 - Indication method and device

Info

Publication number: WO2018227837A1
Application number: PCT/CN2017/107346
Authority: WO
Inventors: 薛祎凡; 王达; 王键; 刘云
Original assignee: 华为技术有限公司
Priority date: 2017-06-16
Filing date: 2017-10-23
Publication date: 2018-12-20

Abstract

Embodiments of the present invention relate to the field of communications. Disclosed are an indication method and device, resolving the problem of how a base station indicates to a terminal the number of data blocks in downlink data transmitted by the base station to the terminal. The specific solution is: a base station transmits to a terminal multiple pieces of downlink control information and multiple pieces of downlink data scheduled by the multiple pieces of downlink control information in a first time and frequency resource. Each piece of downlink control information comprises first indication information and second indication information; the first indication information is used to indicate the number of data blocks in the downlink data transmitted by the base station to the terminal in a second time and frequency resource; and the second indication information is used to indicate the number of data blocks in the downlink data transmitted by the base station to the terminal in a third time and frequency resource. The embodiment of the present invention is used by a base station to indicate to a terminal the number of data blocks in downlink data that the base station transmits to the terminal.

Description

Indication method and device

Technical field

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

Background technique

In the Long Term Evolution (LTE) communication system, the uplink data sent by the terminal to the base station and the downlink data sent by the base station to the terminal are all transmitted in the size of a Transmission Block (TB). When the terminal receives the downlink data and feeds back the Hybrid Automatic Repeat reQuest Acknowledgement (HARQ-ACK) information to the base station, or the base station receives the uplink data and feeds the HARQ-ACK information to the terminal, each TB uses 1 The bits represent the reception status of the terminal or base station, with 1 representing correct reception and 0 representing reception failure.

In the prior art, a field exists in the Downlink Control Information (DCI) sent by the base station to the terminal, and is recorded as

It is used to indicate how many TB downlink data can be received for the terminal in the current feedback window until the current subframe. For example, FIG. 1 provides a method for setting a Data Assignment Indication (DAI) in LTE. In FIG. 1, downlink data transmission for a certain terminal is performed on subframe 0 and subframe 1, and subframe 0 is Inside the DCI

Indicates that there is one TB downlink data transmission for the terminal to the current subframe position in the current first time and frequency resource; DCI in subframe 1

It indicates that there are 2 TB downlink data transmissions for the terminal to the current subframe position in the current first time and frequency resources. Alternatively, after the Enhanced Carrier Aggregaion (eCA) technology is introduced in the Long Term Evolution Advanced (LTE-A) communication system, the DAI may include a counter DAI and a total DAI. The parameter is recorded as (counter DAI, total DAI); wherein the counter DAI is used to indicate that the current subframe and the current carrier are within the current first time and frequency resources (each carrier is arranged in descending order of carrier numbers). How many TBs of downlink data can be received for the terminal; the total DAI is used to indicate how many TBs can be received for the current terminal on all carriers in the current first time and frequency resources up to the current subframe. Downstream data. For example, FIG. 2 provides another method for setting a Data Assignment Indication (DAI) in the LTE. In FIG. 2, the base station configures three component carriers (CCs) for the terminal, which are respectively CC1, CC2, and CC3, the first time and frequency resource length are 3 subframes, which are subframe 1, subframe 2, and subframe 3. The base station schedules 7 downlink data transmissions, and all downlink data needs to use the same physical uplink control channel (Physical). Uplink Control Channel, PUCCH) resource feedback. In subframe 1, a total of three component carriers carry downlink data transmission, the total DAI is 3, and the counter DAI is 1, 2, and 3 according to the component carrier numbers. In subframe 2, two downlink data transmissions are scheduled, and three downlink data transmissions in subframe 1 are added, and a total of five downlink data transmissions are performed on all component carriers in the current feedback window, so subframe 2 is The total DAI is 5, and the counter DAI is 4 and 5. Finally, in subframe 3, two downlink data transmissions are scheduled, and five downlink data transmissions scheduled by subframe 1 and subframe 2 are added, and a total of seven downlink data transmissions are performed on all component carriers in the current feedback window. The total DAI in subframe 3 is 7, and the counter DAI is 6 and 7, respectively.

However, once a small portion of the entire TB receives errors due to poor channel conditions, etc., it will result in the entire TB. The reception fails, which leads to the retransmission of the entire TB, resulting in a large retransmission overhead. Therefore, in the standardization process of 5G NR, a code block group (CBG) based transmission is introduced. A TB consists of one or more. If a small part of a TB receives an error due to a bad channel condition, it is only necessary to retransmit the affected part of the CBG. The base station can configure whether the downlink data transmission is TB-based or CBG-based, so the number of data blocks (such as TB or CBG) in the downlink data transmission is variable. Therefore, how the base station indicates to the terminal the number of data blocks in the downlink data sent by the base station to the terminal is an urgent problem to be solved.

Summary of the invention

The embodiment of the invention provides an indication method and device, which solves the problem of how the base station indicates to the terminal the number of CBGs in the downlink data sent by the base station to the terminal.

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

A first aspect of the embodiments of the present invention provides an indication method, where a base station sends multiple downlink control information to a terminal in a first time and a frequency resource, and multiple downlink data scheduled by multiple downlink control information; The downlink control information includes first indication information and second indication information, where the first indication information is used to indicate the number of data blocks in the downlink data sent by the base station to the terminal in the second time and frequency resource, and the second indication information is used to indicate The number of data blocks in the downlink data sent by the base station to the terminal in the third time and the frequency resource, and the data block is a combination of any one or more of the transport block TB, the CBG, and the code block (CB). The indication method provided by the embodiment of the present invention, by setting the first indication information and the second indication information in each downlink control information, indicates to the terminal the number of data blocks in the downlink data that the base station sends to the terminal.

With reference to the first aspect, in a possible implementation manner, the first time and frequency resource includes M component carriers and all time resource units on the M component carriers, where there are N _i on the i th component carrier. Time resource unit, M is an integer greater than or equal to 1, N _i is an integer greater than or equal to 1, i is an integer greater than or equal to 1 and less than or equal to M, and the time resource unit includes a slot, a mini slot (mini- A combination of one or more of a slot, a subframe, a frame, and a symbol, the first time and frequency resource including a second time and frequency resource and a third time and frequency resource. In order to solve the problem of how the base station indicates to the terminal the number of data blocks in the downlink data sent by the base station to the terminal. Embodiments of the present invention provide a specific implementation of a first time and frequency resource.

In combination with the foregoing possible implementation manners, in another possible implementation, the first indication information is specifically used to indicate that the first time and the frequency resource start time to the jth time resource unit on the i-th component carrier The number of data blocks transmitted, j is greater than or equal to 1 and less than or equal to N _i , and the second time and frequency resource is from the start time of the first time and frequency resource to the jth time resource unit on the i-th component carrier The second indication information is specifically used to indicate the number of data blocks transmitted in the N _i time resource units on the i-th component carrier, and the third time and frequency resources are N _i times on the i-th component carrier. Resource unit. In order to solve the problem of how the base station indicates to the terminal the number of data blocks in the downlink data sent by the base station to the terminal. The embodiment of the invention provides a specific implementation of the first indication information and the second indication information.

In combination with the foregoing possible implementation manners, in another possible implementation, the first indication information is specifically used to indicate that the first time and the frequency resource start time to the jth time resource unit on the i-th component carrier And the number of data blocks co-transmitted in all time resource units from the first component carrier to the i-1th component carrier, j being greater than or equal to 1 and less than or equal to N _i , the second time and frequency resource For all time resource units on the i-th component carrier from the start time of the first time and frequency resource to the jth time resource unit, and from the first component carrier to the i-1th component carrier; The second indication information is specifically used to indicate the number of data blocks that are co-transmitted in all time resource units from the first component carrier to the i-th component carrier, and the third time and frequency resources are from the first component carrier. All time resource units on the i-th component carrier. In order to solve the problem of how the base station indicates to the terminal the number of data blocks in the downlink data transmitted by the base station to the terminal. The embodiment of the invention provides a specific implementation of the first indication information and the second indication information.

In combination with the foregoing possible implementation manners, in another possible implementation, the first indication information is specifically used to indicate that the first time and the frequency resource start time to the jth time resource unit on the i-th component carrier And the number of data blocks co-transmitted in all time resource units from the first component carrier to the i-1th component carrier, j being greater than or equal to 1 and less than or equal to N _i , the second time and frequency resource For all time resource units on the i-th component carrier from the start time of the first time and frequency resource to the jth time resource unit, and from the first component carrier to the i-1th component carrier; The second indication information is specifically used to indicate the number of data blocks that are co-transmitted in all time resource units on the M component carriers, and the third time and frequency resources are all time resource units on the M component carriers. In order to solve the problem of how the base station indicates to the terminal the number of data blocks in the downlink data sent by the base station to the terminal. The embodiment of the invention provides a specific implementation of the first indication information and the second indication information.

In combination with the foregoing possible implementation manners, in another possible implementation, the first indication information is specifically used to indicate data transmitted from the first component carrier to the ith component carrier in the jth time resource unit. The number of blocks, j is greater than or equal to 1 and less than or equal to N ₁ , and the second time and frequency resource is from the first component carrier to the ith component carrier in the jth time resource unit; the second indication information is specifically used And indicating the number of data blocks transmitted on the M component carriers in the jth time resource unit, where the third time and frequency resources are M component carriers in the jth time resource unit; wherein, the length of the time resource unit The length of the time resource unit of the first component carrier is taken as the standard. In order to solve the problem of how the base station indicates to the terminal the number of data blocks in the downlink data sent by the base station to the terminal. The embodiment of the invention provides a specific implementation of the first indication information and the second indication information.

In combination with the foregoing possible implementation manners, in another possible implementation, the first indication information is specifically used to indicate that the first component carrier to the i-th component carrier are in the j-th time resource unit, and The number of all data blocks transmitted on the M component carriers in the first time resource unit to the j-1th time resource unit, j is greater than or equal to 1 and less than or equal to N ₁ , and the second time and frequency resource is at the jth Within the time resource unit, from the first component carrier to the i-th component carrier, and from the first time resource unit to the j-1th time resource unit, the M component carriers; the second indication information is specifically used for Indicates the number of data blocks transmitted on the M component carriers from the first time resource unit to the jth time resource unit, and the third time and frequency resource is from the first time resource unit to the jth time resource unit The inner M component carriers; wherein the length of the time resource unit is based on the length of the time resource unit of the first component carrier. In order to solve the problem of how the base station indicates to the terminal the number of data blocks in the downlink data sent by the base station to the terminal. The embodiment of the invention provides a specific implementation of the first indication information and the second indication information.

In combination with the foregoing possible implementation manners, in another possible implementation, the first indication information is specifically used to indicate that the first component carrier to the i-th component carrier are in the j-th time resource unit, and The number of all data blocks transmitted on the M component carriers in the first time resource unit to the j-1th time resource unit, j is greater than or equal to 1 and less than or equal to N ₁ , and the second time and frequency resource is at the jth Within the time resource unit, from the first component carrier to the i-th component carrier, and from the first time resource unit to the j-1th time resource unit, the M component carriers; the second indication information is specifically used for Indicates the number of data blocks that are co-transmitted in all time resource units on the M component carriers, and the third time and frequency resources are all time resource units on the M component carriers; wherein the length of the time resource unit is The length of the time resource unit of one component carrier is accurate. In order to solve the problem of how the base station indicates to the terminal the number of data blocks in the downlink data sent by the base station to the terminal. The embodiment of the invention provides a specific implementation of the first indication information and the second indication information.

In combination with the foregoing possible implementation manners, in another possible implementation manner, if the subcarrier spacing included in each component carrier is different, the length of the time resource unit is determined by the length of the time resource unit of the first component carrier. . In order to solve How does the base station indicate to the terminal the number of data blocks in the downlink data that the base station transmits to the terminal. The embodiment of the invention provides a specific implementation of the first indication information and the second indication information.

In combination with the foregoing possible implementation manners, in another possible implementation manner, after the base station sends multiple downlink control information to the terminal in the first time and frequency resource, and multiple downlink data scheduled by the multiple downlink control information, The method further includes: receiving, by the base station, uplink control information sent by the terminal, where the uplink control information includes Z feedback information, where each feedback information is used to indicate the receiving status of the data block, including acknowledgement ACK, Not Acknowledgement (NACK), and/or Discontinuous Transmission (DTX). The indication method provided by the embodiment of the present invention, by setting the first indication information and the second indication information in each downlink control information, indicates to the terminal, the number of data blocks in the downlink data that the base station sends to the terminal, and the terminal according to the An indication of the indication information and the second indication information acquires the number of data blocks in the downlink data, and confirms whether the reception is successful, and sends uplink control information including Z feedback information to the base station, and notifies the base station base station to receive the downlink data. Further, in the case that the terminal receives a data block error, when retransmitting the data block, the overhead of retransmission can be effectively reduced.

A second aspect of the embodiments of the present invention provides an indication method, including: receiving, by a terminal, a plurality of downlink control information sent by a base station, and multiple downlink data scheduled by multiple downlink control information, in a first time and a frequency resource; Each of the downlink control information includes first indication information and second indication information, where the first indication information is used to indicate the number of data blocks in the downlink data that the base station sends to the terminal in the second time and frequency resource, and the second indication The information is used to indicate the number of data blocks in the downlink data sent by the base station to the terminal in the third time and frequency resource, and the data block is a combination of any one or more of TB, CBG, and CB. The indication method provided by the embodiment of the present invention, after the first indication information and the second indication information are received in the downlink control information, the terminal receives the first indication information and the second indication information, according to the first indication information and the second indication. The indication of the information acquires the number of data blocks in the downlink data.

With reference to the second aspect, in a possible implementation manner, the first time and frequency resource includes M component carriers, and there are N _i time resource units on the i-th component carrier, where M is an integer greater than or equal to 1, N _i is an integer greater than or equal to 1, i is an integer greater than or equal to 1 and less than or equal to M, and the time resource unit includes a combination of one or more of a time slot, a minislot, a subframe, a frame, and a symbol, the first time And frequency resources include second time and frequency resources and third time and frequency resources. In order to solve the problem of how the base station indicates to the terminal the number of data blocks in the downlink data sent by the base station to the terminal. Embodiments of the present invention provide a specific implementation of a first time and frequency resource.

In combination with the foregoing possible implementation manner, in another possible implementation manner, the terminal receives, in the first time and the frequency resource, multiple downlink control information that is sent by the base station, and multiple downlink data that are scheduled by multiple downlink control information. The method further includes: determining, by the terminal, the number Z of the feedback information according to the one or more second indication information received in the first time and the frequency resource, where each feedback information is used to indicate the receiving condition of the data block, including Acknowledgement ACK, non-acknowledgement NACK, and/or discontinuous transmission DTX; the terminal determines the location of the Z feedback information in the uplink control information according to the one or more first indication information received in the first time and frequency resource; The base station sends uplink control information, and the uplink control information includes Z feedback information. In order to solve the problem of how the base station indicates to the terminal the number of data blocks in the downlink data sent by the base station to the terminal. The embodiment of the invention provides a specific implementation of the first indication information and the second indication information.

In combination with the foregoing possible implementation manners, in another possible implementation, the first indication information is specifically used to indicate that the first time and the frequency resource start time to the jth time resource unit on the i-th component carrier And the number of data blocks co-transmitted in all time resource units from the first component carrier to the i-1th component carrier, j being greater than or equal to 1 and less than or equal to N _i , the second time and frequency resource For all time resource units on the i-th component carrier from the start time of the first time and frequency resource to the jth time resource unit, and from the first component carrier to the i-1th component carrier; The second indication information is specifically used to indicate the number of data blocks that are co-transmitted in all time resource units from the first component carrier to the i-th component carrier, and the third time and frequency resources are from the first component carrier. All time resource units on the i-th component carrier. In order to solve the problem of how the base station indicates to the terminal the number of data blocks in the downlink data sent by the base station to the terminal. The embodiment of the invention provides a specific implementation of the first indication information and the second indication information.

A third aspect of the embodiments of the present invention provides a base station, including: a sending unit, configured to send, in a first time and frequency resource, multiple downlink control information, and multiple downlink data scheduled by multiple downlink control information. Each of the downlink control information includes first indication information and second indication information, where the first indication information is used to indicate the number of data blocks in the downlink data sent by the base station to the terminal in the second time and frequency resource, and second The indication information is used to indicate the number of data blocks in the downlink data sent by the base station to the terminal in the third time and frequency resource, and the data block is a combination of any one or more of TB, CBG, and CB.

A fourth aspect of the embodiments of the present invention provides a terminal, including: a receiving unit, configured to receive, in a first time and frequency resource, multiple downlink control information sent by a base station, and multiple times scheduled by multiple downlink control information. Downstream data, where each downlink control information includes first indication information and second indication information, where the first indication information is used to indicate the number of data blocks in the downlink data that the base station sends to the terminal in the second time and frequency resource, The second indication information is used to indicate the number of data blocks in the downlink data sent by the base station to the terminal in the third time and frequency resource, and the data block is a combination of any one or more of TB, CBG, and CB.

It should be noted that the foregoing third and fourth functional modules may be implemented by hardware, or may be implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above. For example, a transceiver for performing functions of a receiving unit and a transmitting unit, a processor for performing functions of the processing unit, a memory, and a program instruction for the processor to process the indicating method of the embodiment of the present application. The processor, transceiver, and memory are connected by a bus and communicate with each other. Specifically, reference may be made to the function of the behavior of the base station in the indication method provided by the first aspect, and the function of the behavior of the terminal in the indication method provided by the second aspect.

In a fifth aspect, an embodiment of the present application provides a base station, including: 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, when the base station is running. The processor executes the computer stored instructions stored by the memory to cause the base station to perform the method of any of the above aspects.

In a sixth aspect, an embodiment of the present application provides a terminal, including: 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, when the terminal is running The processor executes the computer-executable instructions stored by the memory to cause the terminal to perform the method of any of the above aspects.

In a seventh aspect, the embodiment of the present application provides a computer readable storage medium for storing computer software instructions used by the base station, when executed on a computer, to enable the computer to perform the method of any of the foregoing.

In an eighth aspect, an embodiment of the present application provides a computer readable storage medium for storing computer software instructions used by the terminal, and when executed on a computer, causes the computer to perform the method of any of the foregoing.

In a ninth aspect, an embodiment of the present application provides 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.

A tenth aspect, the embodiment of the present application provides a system, including the base station according to any of the foregoing aspects, and any one of the foregoing The terminal described in the aspect.

In addition, the technical effects brought by the design manners of any one of the third aspect to the tenth aspect can be referred to the technical effects brought by the different design modes in the first aspect to the second aspect, and details are not described herein again.

In the embodiment of the present application, the names of the base station and the terminal are not limited to the device itself. In actual implementation, the devices may appear under other names. As long as the functions of the respective devices are similar to the embodiments of the present application, they are within the scope of the claims and their equivalents.

These and other aspects of the embodiments of the present application will be more readily understood in the following description of the embodiments.

DRAWINGS

1 is a schematic diagram of a method for setting a data allocation indication in LTE according to the prior art;

FIG. 2 is a schematic diagram of another method for setting a data allocation indication in LTE according to the prior art; FIG.

FIG. 3 is a simplified schematic diagram of a system architecture according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a downlink subframe in a 5G NR according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a base station according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure;

FIG. 7 is a flowchart of a method for indicating according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a first time and frequency resource format according to an embodiment of the present invention;

FIG. 9 is a flowchart of an indication method according to an embodiment of the present invention;

FIG. 10 is a schematic diagram of downlink transmission of a base station and a terminal according to an embodiment of the present disclosure;

FIG. 11 is a schematic diagram of a first implementation manner of the first indication information and the second indication information of the downlink transmission provided by FIG. 10 according to an embodiment of the present disclosure;

FIG. 12 is a schematic diagram of a mini time slot according to an embodiment of the present invention;

FIG. 13 is a schematic diagram of downlink transmission of a base station and a terminal according to an embodiment of the present disclosure;

FIG. 14 is a schematic diagram of a first implementation manner of the first indication information and the second indication information of the downlink transmission provided by FIG. 14 according to an embodiment of the present disclosure;

FIG. 15 is a schematic diagram of downlink transmission of a base station and a terminal according to an embodiment of the present disclosure;

FIG. 16 is a schematic diagram of a first implementation manner of the first indication information and the second indication information of the downlink transmission provided by FIG. 15 according to an embodiment of the present disclosure;

FIG. 17 is a schematic diagram of downlink transmission of a base station and a terminal according to an embodiment of the present disclosure;

FIG. 18 is a schematic diagram of a first implementation manner of the first indication information and the second indication information of the downlink transmission provided by FIG. 17 according to an embodiment of the present disclosure;

FIG. 19 is a schematic diagram of a second implementation manner of the first indication information and the second indication information of the downlink transmission provided by FIG. 10 according to an embodiment of the present disclosure;

FIG. 20 is a schematic diagram of a second implementation manner of the first indication information and the second indication information of the downlink transmission provided by FIG. 13 according to an embodiment of the present disclosure;

FIG. 21 is a schematic diagram of a second implementation manner of the first indication information and the second indication information of the downlink transmission provided by FIG. 15 according to an embodiment of the present disclosure;

FIG. 22 is a schematic diagram of a second implementation manner of the first indication information and the second indication information of the downlink transmission provided by FIG. 17 according to an embodiment of the present disclosure;

FIG. 23 is the first indication information and the second indication information of the downlink transmission provided by FIG. 10 according to an embodiment of the present invention. A fourth achievable schematic diagram;

FIG. 24 is a schematic diagram of a fourth implementation manner of the first indication information and the second indication information of the downlink transmission provided by FIG. 13 according to an embodiment of the present disclosure;

FIG. 25 is a schematic diagram of a fourth implementation manner of the first indication information and the second indication information of the downlink transmission provided by FIG. 13 according to an embodiment of the present disclosure;

FIG. 26 is a schematic diagram of a fourth implementation manner of the first indication information and the second indication information of the downlink transmission provided by FIG. 15 according to an embodiment of the present disclosure;

FIG. 27 is a schematic diagram of a fourth implementation manner of the first indication information and the second indication information of the downlink transmission provided by FIG. 17 according to an embodiment of the present disclosure;

FIG. 28 is a schematic diagram of another fourth implementation manner of the first indication information and the second indication information of the downlink transmission provided by FIG. 17 according to an embodiment of the present disclosure;

FIG. 29 is a schematic diagram of a fifth implementation manner of the first indication information and the second indication information of the downlink transmission provided by FIG. 10 according to an embodiment of the present disclosure;

FIG. 30 is a schematic diagram of a fifth implementation manner of the first indication information and the second indication information of the downlink transmission provided by FIG. 13 according to an embodiment of the present disclosure;

FIG. 31 is a schematic diagram of a fifth implementation manner of the first indication information and the second indication information of the downlink transmission provided by FIG. 13 according to an embodiment of the present disclosure;

FIG. 32 is a schematic diagram of a fifth implementation manner of the first indication information and the second indication information of the downlink transmission provided by FIG. 15 according to an embodiment of the present disclosure;

FIG. 33 is a schematic diagram of a fifth implementation manner of the first indication information and the second indication information of the downlink transmission provided by FIG. 17 according to an embodiment of the present disclosure;

FIG. 34 is a schematic diagram of a fifth implementation manner of the first indication information and the second indication information of the downlink transmission provided by FIG. 17 according to an embodiment of the present disclosure;

FIG. 35 is a schematic structural diagram of a base station according to an embodiment of the present disclosure;

FIG. 36 is a schematic structural diagram of a base station according to an embodiment of the present disclosure;

FIG. 37 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure;

FIG. 38 is a schematic structural diagram of a terminal according to an embodiment of the present invention.

detailed description

The basic principle of the indication method provided by the embodiment of the present invention is that the base station sends multiple downlink control information to the terminal in the first time and the frequency resource, and multiple downlink data scheduled by multiple downlink control information, where the terminal is in the first time. Receiving, in the frequency resource, the plurality of downlink control information sent by the base station, and the plurality of downlink data scheduled by the multiple downlink control information, where each downlink control information includes the first indication information and the second indication information, where The indication information is used to indicate the number of data blocks in the downlink data sent by the base station to the terminal in the second time and frequency resource, and the second indication information is used to indicate the downlink data sent by the base station to the terminal in the third time and frequency resource. The number of data blocks, the data block being a combination of any one or more of TB, CBG, and CB, the first time and frequency resources including the second time and frequency resources and the third time and frequency resources, thereby solving How does the base station indicate to the terminal the number of data blocks in the downlink data that the base station transmits to the terminal.

For example, the first time and frequency resources include M component carriers and all time resource units on the M component carriers, wherein there are Ni time resource units on the ith component carrier, and M is an integer greater than or equal to 1. , Ni is greater than or equal to An integer of 1, i is an integer greater than or equal to 1 and less than or equal to M, and the time resource unit includes a combination of one or more of a time slot, a mini slot, a subframe, a frame, and a symbol, and the first time and frequency resources may be It is a feedback window, that is, a time and frequency resource range that needs to feed back ACK or NACK on the same PUCCH resource or PUSCH resource for the same UE.

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

3 is a simplified schematic diagram of a system architecture to which embodiments of the present invention may be applied. As shown in FIG. 3, the system architecture may include: a terminal 11 and a base station 12.

Among them, the terminal 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 invention includes a terminal 11 that is a mobile phone. The terminal communicates with the base station through a wireless communication technology. The wireless communication technology described in the embodiment of the present invention is a 5G communication technology.

The base station described in this application, that is, the network side device 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 base station 12 in the embodiment of the present invention may be a base station in a 5G network.

It should be noted that in order to meet the downlink peak speed of 1 Gbps in the LTE-A system and the uplink peak speed of 500 Mbps, it is necessary to provide a transmission bandwidth of up to 100 MHz. However, due to the scarcity of the continuous spectrum of the transmission bandwidth of 100 MHz, LTE-A proposes Carrier Aggregation (CA) solution. The CA aggregates 2 or more CCs to support a larger transmission bandwidth (up to 100 MHz), and each CC corresponds to a separate cell. It is usually possible to equate 1 CC to 1 cell. The maximum bandwidth of each CC is 20MHz. A terminal is configured with a maximum of five CCs, one of which is called a primary cell (PCell), which is a cell in which the terminal performs initial connection establishment, or a cell that performs radio resource control (RRC) connection reestablishment, or Is the primary cell specified during the handover process. The PCell is responsible for RRC communication with the terminal. PUCCH can only be sent on the PCell. The remaining CCs are called Secondary Cells (SCells) and are added during RRC reconfiguration to provide additional radio resources. After the Enhanced Carrier Aggregaion (eCA) is proposed, a terminal can be configured with up to 32 CCs. In this case, in order to prevent the signaling overhead of the PCell from being overburdened, the concept of the PUCCH SCell is introduced, and the PUCCH of some SCells can be transmitted on the PUCCH SCell. The base station 12 shown in FIG. 3 can configure the terminal 11 with CA or eCA, so that the base station 12 transmits downlink data to the terminal through multiple CCs, or receives uplink data sent by the terminal. In the embodiment of the present invention, the base station sends multiple downlink control information to the terminal in the first time and the frequency resource, and multiple downlink data scheduled by the multiple downlink control information, where the first time and frequency resources include M components. In the case of a carrier, the base station uses CA technology.

In order to facilitate the understanding of the embodiments of the present application, the subframe structure in the 5G NR system is introduced:

FIG. 4 shows a schematic diagram of a downlink subframe structure in a 5G NR. The subframe structure includes three parts. The first part is a DL control region, and is used by the base station to send a downlink grant (DL grant) to the terminal, for example, downlink control information, and the second part is a data region. The base station is configured to send downlink data to the terminal, and the third part is an uplink control part (UL control region), where the terminal sends a HARQ-ACK to the downlink data included in the second part or The terminal may also transmit uplink channel state information (CSI), that is, uplink channel information, to the base station for subsequent scheduling use, and may also include a guard period (GP). It should be noted that, in the 5G NR system, the downlink subframe can also be used as an uplink subframe, and the terminal transmits uplink information to the base station. The first part is used by the base station to send an uplink grant (UL grant) to the terminal, and tells the terminal how to configure the resource. . The second part is used by the terminal to transmit uplink data according to resources allocated by the previous UL grant.

FIG. 5 is a schematic structural diagram of a base station according to an embodiment of the present invention. The base station 12 in FIG. 3 can be implemented in the manner of the base station in FIG. 5. As shown in FIG. 5, 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. 5:

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 invention. 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, the 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 invention and is controlled by the processor 21.

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 5, but it does not mean that there is only one bus or one type of bus.

The device structure shown in FIG. 5 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. 6 is a schematic structural diagram of a terminal according to an embodiment of the present invention. The terminal 11 in FIG. 3 can be implemented in the manner of the terminal in FIG. 6. As shown in FIG. 6, the terminal may include at least one processor 31, memory 32, display 33, and transceiver 34.

The following describes the components of the terminal in conjunction with Figure 6:

The processor 31 is a control center of the terminal, and may be a processor or a collective name of a plurality of processing elements. For example, processor 31 is a CPU, which may be an ASIC, or one or more integrated circuits configured to implement embodiments of the present invention, such as one or more DSPs, or one or more FPGAs. Among them, the processor 31 can perform various functions of the terminal 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 may 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 invention, 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. 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. 6 does not constitute a limitation to the terminal, 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 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.

FIG. 7 is a flowchart of a method for indicating a method according to an embodiment of the present invention. The terminal and the base station are included in the communication system shown in FIG. 3. As shown in FIG. 7, the method may include:

401. The base station sends multiple downlink control information to the terminal in the first time and the frequency resource, and multiple downlink data that are scheduled by multiple downlink control information.

The downlink control information sent by the base station to the terminal and the downlink data scheduled by the downlink control information may be sent in the downlink subframe format shown in FIG. 4, and the base station may send multiple to the terminal through the CA in the first time and frequency resource. Downlink control information, and a plurality of downlink data scheduled by a plurality of downlink control information. It should be noted that the base station can also pass LTE, The other sub-frame formats in the 5G or other systems send multiple downlink control information to the terminal, and multiple downlink data that are scheduled by multiple downlink control information. The description is not limited herein. Each of the downlink control information includes first indication information and second indication information, where the first indication information is used to indicate the number of data blocks in the downlink data that the base station sends to the terminal in the second time and frequency resource, and the second indication The information is used to indicate the number of data blocks in the downlink data that the base station sends to the terminal within the third time and frequency resource. FIG. 8 is a schematic diagram of a first time and frequency resource format according to an embodiment of the present invention. As shown in FIG. 8, the time resource unit on the CC may be a combination of one or more of a time slot, a mini slot, a subframe, a frame, and a symbol.

402. The terminal receives, in the first time and the frequency resource, multiple downlink control information sent by the base station, and multiple downlink data scheduled by multiple downlink control information.

After the base station sends multiple downlink control information to the terminal in the first time and the frequency resource, and the multiple downlink data scheduled by the multiple downlink control information, the terminal receives multiple downlink control information sent by the base station in the first time and the frequency resource. And a plurality of downlink data scheduled by the plurality of downlink control information.

According to the indication method provided by the embodiment of the present invention, the base station sets the first indication information and the second indication information in the multiple downlink control information sent to the terminal in the first time and the frequency resource, and uses the first indication information to indicate the base station in the second time and The number of data blocks in the downlink data sent to the terminal in the frequency resource, and the second indication information is used to indicate the number of data blocks in the downlink data sent by the base station to the terminal in the third time and the frequency resource, so that the terminal receives the downlink. After the data, the number of data blocks in the downlink data sent by the base station to the terminal is confirmed by the first indication information and the second indication information. Therefore, the problem of how the base station indicates to the terminal the number of data blocks in the downlink data transmitted by the base station to the terminal is solved.

Further, based on FIG. 7, as shown in FIG. 9, the terminal receives multiple downlink control information sent by the base station in the first time and frequency resource, and after the multiple downlink data scheduled by the multiple downlink control information, the terminal needs to send the base station to the base station. Sending an acknowledgement message to inform the base station whether the terminal successfully receives downlink data, and the method may further include the following detailed steps:

403. The terminal sends uplink control information to the base station.

The uplink control information includes Z feedback information, and each feedback information is used to indicate the reception status of the data block, including ACK, NACK, and/or DTX. For example, the Z feedback information may include X ACKs and Y NACKs, X is an integer greater than or equal to 0 and less than or equal to Z, Y is an integer greater than or equal to 0 and less than or equal to Z, and the sum of X and Y is equal to Z.

404. The base station receives uplink control information sent by the terminal.

After the terminal sends the uplink control information to the base station, the base station receives the uplink control information sent by the terminal.

According to the indication method provided by the embodiment of the present invention, the base station sets the first indication information and the second indication information in the multiple downlink control information sent to the terminal in the first time and the frequency resource, and uses the first indication information to indicate the base station in the second time and The number of data blocks in the downlink data sent to the terminal in the frequency resource, and the second indication information is used to indicate the number of data blocks in the downlink data sent by the base station to the terminal in the third time and the frequency resource, so that the terminal receives the downlink. After the data, the first indication information and the second indication information are used to confirm the number of data blocks in the downlink data sent by the base station to the terminal, and after the terminal receives the downlink data, the terminal needs to send feedback information to the base station to notify the base station of the Whether the terminal successfully receives downlink data.

The terms "first" and "second" and the like in the specification and claims of the embodiments of the present application are used to distinguish different objects, and are not intended to describe a specific order of the objects. For example, the first base station and the second base station, etc., are used to distinguish different base stations, rather than to describe a particular order of devices.

In the embodiments of the present application, the words "exemplary" or "such as" are used to mean an example, illustration, or illustration. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of the words "exemplary" or "for example" is intended to mean Body concepts present concepts that are easy to understand.

In the embodiment of the present application, the “data block” may be any one or a combination of TB, CBG, and CB. For example, all data blocks are CBG; or all data blocks are TB; or all data blocks are CB; or some data blocks are CBG, and the remaining data blocks are TB; or some data blocks are CB, and the remaining data blocks are TB. Or some of the data blocks are CBG, and the remaining data blocks are CB; or the first part of the data block is CBG, the second part of the data block is TB, and the remaining data blocks are CB. The part of the data block, the first partial data block, the second partial data block, and the remaining data blocks are all data blocks within a certain time frequency resource. For example, a portion of the data blocks are on one carrier and the remaining data blocks are on other carriers; or a portion of the data blocks are in the first time slot and the remaining data blocks are in other time slots.

The following describes the six different indication manners of the first indication information and the second indication information, and details how to use the first indication information to indicate data in the downlink data sent by the base station to the terminal in the second time and frequency resource. And the number of the data blocks in the downlink data sent by the base station to the terminal in the third time and the frequency resource by using the second indication information, so that the base station is instructed by the base station to indicate the downlink data sent by the base station to the terminal. The problem of the number of data blocks.

In the first implementation manner, the first indication information is specifically used to indicate the number of data blocks transmitted from the start time of the first time and frequency resource to the jth time resource unit on the i-th component carrier. j is greater than or equal to 1 and less than or equal to N _i , N _i represents a time resource unit on the i-th component carrier, and the second time and frequency resource is from the start time of the first time and frequency resource on the i-th component carrier to The jth time resource unit; the second indication information is specifically used to indicate the number of data blocks transmitted in the N _i time resource units on the i-th component carrier, and the third time and frequency resources are in the i-th component N _i time resource units on the carrier.

For example, FIG. 10 is a schematic diagram of downlink transmission between a base station and a terminal according to an embodiment of the present invention. The base station configures the CA or the inband CA for the terminal, and includes three downlink component carriers, CC1, CC2, and CC3, in the first time and frequency resources, that is, M equals 3, and each downlink component carrier has the same numerology. Assuming that the time resource units on each component carrier are time slots, as shown in FIG. 10, three time slots including time slot 1, time slot 2, and time slot 3 are included in the first time and frequency resources, and then each component There are 3 time resource units on the carrier. In the first time and frequency resources, the base station configures seven downlink data transmissions for the terminal, which are respectively the transmission on CC1 in slot 1 and include two data blocks; the transmission on CC1 in slot 3 includes one data block. The transmission on CC2 in slot 1 contains 2 data blocks; the transmission on CC2 in slot 2 contains 2 data blocks; the transmission on CC3 in slot 1 contains 1 data block; in slot 2 The transmission on CC3 contains 2 data blocks; the transmission on CC3 in time slot 3 contains 2 data blocks.

It should be noted that the numerology is determined by a sub-carrier spacing (SCS) and a cyclic shift (CP). A variety of numerologies are supported in 5G NR. Different numerologies can be time division multiplexed (TDM) or frequency division multiplexed (FDM), that is, different numerologies can be used at different times or frequency bands. In the case where the subcarrier spacing included in each component carrier is the same, the time slots of each component carrier are the same.

The first implementation manner of the first indication information and the second indication information is elaborated below through the downlink transmission provided in FIG. 10, as shown in FIG.

On the CC1 in the slot 1, there are 2 data blocks transmitted, and there is no other data block transmission on the CC1 before the time slot 1. The downlink indication information sent by the base station to the terminal includes the first indication information indicating that the CC1 is on the CC1. The first time and the start time of the frequency resource have two data block transmissions in the time slot 1, and the second indication information indicates that there are 3 data block transmissions from the time slot 1 to the time slot 3 on the CC1, and are received at the terminal. After the downlink control information on the CC1 in the time slot 1, the terminal may obtain, according to the indication of the first indication information, two data block transmissions from the start time of the first time and frequency resource to the time slot 1 on the CC1, and according to the The indication of the two indication information is obtained by transmitting 3 data blocks from slot 1 to slot 3 on CC1, The second time and frequency resource is from the start time of the first time and frequency resource to the time slot 1 on the CC1, and the third time and frequency resource is from the time slot 1 to the time slot 3 on the CC1; On the inner CC1, there is one data block transmission, and there are two data block transmissions on the CC1 in the time slot 1 before the time slot 3. The first indication information included in the downlink control information sent by the base station to the terminal is indicated on the CC1. There are 3 data block transmissions from the start time of the first time and frequency resources to the time slot 3, and the second indication information indicates that there are 3 data block transmissions from the time slot 1 to the time slot 3 on the CC1, and are received at the terminal. After the downlink control information on the CC1 in the time slot 3, the terminal may obtain, according to the indication of the first indication information, three data blocks from the start time of the first time and frequency resource to the time slot 3 on the CC1, and according to The indication of the second indication information reconfirms to obtain 3 data block transmissions from time slot 1 to time slot 3 on CC1, wherein the second time and frequency resource is the start time from the first time and frequency resource on CC1 To time slot 3, the third time and frequency resources are from CC1 Slot 1 to slot 3. It should be noted that since the terminal already knows that there are 2 data block transmissions from the start time of the first time and frequency resource to the time slot 1 on the CC1, there are 3 data from the time slot 1 to the time slot 3 on the CC1. In block transmission, the terminal subtracts the number of data blocks indicated by the first indication information on CC1 in slot 3 from the number of data blocks indicated by the first indication information on CC1 in slot 1, that is, 3-2=1. The number of data blocks in the downlink data that the terminal receives from the base station to the terminal in CC1 in slot 3 is 1. Similarly, the terminal may also calculate the number of data blocks transmitted in different time slots on the same CC according to the first indication information in different time slots on the same CC.

In the slot 1 of the CC2, there are 2 data blocks transmitted, and there is no other data block transmission on the CC2 before the time slot 1. The downlink indication information sent by the base station to the terminal includes the first indication information indicating that the CC2 is on the CC2. There are 2 data block transmissions from the start time of the first time and frequency resources to the time slot 1, and the second indication information indicates that 4 data blocks are transmitted from the time slot 1 to the time slot 3 on the CC2, and are received at the terminal. After the downlink control information on the CC2 in the time slot 1, the terminal may obtain, according to the indication of the first indication information, two data block transmissions from the start time of the first time and frequency resource to the time slot 1 on the CC2, and according to the The indication of the two indication information is obtained by transmitting 4 data blocks from slot 1 to slot 3 on CC2, wherein the second time and frequency resource is from the start time of the first time and frequency resource to the slot on CC2. 1. The third time and frequency resource is from slot 1 to slot 3 on CC2; there are 2 data blocks on CC2 in slot 2, and there is already on CC2 in slot 1 before slot 2. 2 data block transmission, the downlink control information sent by the base station to the terminal includes The first indication information indicates that there are 4 data block transmissions from the start time of the first time and frequency resource to the time slot 2 on the CC2, and the second indication information indicates that there are 4 times from the time slot 1 to the time slot 3 on the CC2. After the data block is transmitted, after the terminal receives the downlink control information on the CC2 in the time slot 2, the terminal may obtain, according to the indication of the first indication information, the time from the start time of the first time and frequency resource to the time slot 2 on the CC2. 4 data block transmissions, and reconfirming according to the indication of the second indication information, there are 4 data block transmissions from time slot 1 to time slot 3 on CC2, wherein the second time and frequency resources are from CC2 The start time of a time and frequency resource to time slot 2, the third time and frequency resource is from time slot 1 to time slot 3 on CC2. It should be noted that since the terminal already knows that there are 2 data block transmissions from the start time of the first time and frequency resources to the time slot 1 on the CC2, the time from the start time of the first time and frequency resources to the time slot on the CC2. If there are 4 data block transmissions in 2, the terminal subtracts the number of data blocks indicated by the first indication information on CC2 in slot 2 from the number of data blocks indicated by the first indication information on CC2 in slot 1 4-2=2, the number of data blocks in the downlink data that the terminal receives from the base station to the terminal in CC2 in slot 2 is 2. Similarly, the terminal may also calculate the number of data blocks transmitted in different time slots on the same CC according to the first indication information in different time slots on the same CC.

In the time slot 1 of the CC3, there is one data block transmission, and there is no other data block transmission on the CC3 before the time slot 1. The downlink indication information sent by the base station to the terminal includes the first indication information indicating that the CC3 is on the CC3. The first time and the start time of the frequency resource have 1 data block transmission in the time slot 1, and the second indication information indicates the time slot 1 to the time slot 3 on the CC3. There are 5 data block transmissions. After the terminal receives the downlink control information on CC3 in slot 1, the terminal can obtain the time from the start time of the first time and frequency resource to the time slot on CC3 according to the indication of the first indication information. There is 1 data block transmission in 1 and 5 data block transmissions from time slot 1 to time slot 3 on CC3 according to the indication of the second indication information, wherein the second time and frequency resources are from CC3. The first time and frequency resource start time to time slot 1, the third time and frequency resource is from time slot 1 to time slot 3 on CC3; in time slot 2, on CC3, there are 2 data blocks transmitted, and Before the time slot 2, there is already one data block transmission on the CC3 in the time slot 1. The first indication information included in the downlink control information sent by the base station to the terminal indicates the time from the start time of the first time and frequency resource to the time slot on the CC3. There are 3 data block transmissions in 2, and the second indication information indicates that 5 data blocks are transmitted from time slot 1 to time slot 3 on CC3. After the terminal receives the downlink control information on CC3 in time slot 2, The terminal may obtain the first from CC3 according to the indication of the first indication information. There are 3 data block transmissions from the start time of the inter-frequency resource to the time slot 2, and 5 data blocks are transmitted from the time slot 1 to the time slot 3 on the CC3 according to the indication of the second indication information, wherein The two time and frequency resources are from the start time of the first time and frequency resource to the time slot 2 on the CC3, the third time and frequency resource is from the time slot 1 to the time slot 3 on the CC3; on the CC3 in the time slot 3 There are 2 data block transmissions, and there is 1 data block transmission on CC3 in slot 1 before

slot

3, and 2 data blocks are transmitted on CC3 in slot 2, then the base station sends the downlink to the terminal. The first indication information included in the control information indicates that there are 5 data block transmissions from the start time of the first time and frequency resource to the time slot 3 on the CC3, and the second indication information indicates the time slot 1 to the time slot on the CC3. There are 5 data block transmissions in the 3, after the terminal receives the downlink control information on the CC3 in the time slot 3, the terminal can obtain the time from the start time of the first time and frequency resource on the CC3 according to the indication of the first indication information. There are 5 data block transmissions in slot 3, and a finger according to the second indication information It is shown that there are 5 data block transmissions from time slot 1 to time slot 3 on CC3, wherein the second time and frequency resource is from the start time of the first time and frequency resource to the time slot 3 on CC3, and the third The time and frequency resources are from slot 1 to slot 3 on CC3. It should be noted that since the terminal already knows that there is one data block transmission from the start time of the first time and frequency resource to the time slot 1 on CC3, the time from the start time of the first time and frequency resource to the time slot on CC3 If there are 3 data block transmissions in 2, the terminal subtracts the number of data blocks indicated by the first indication information on CC3 in slot 2 from the number of data blocks indicated by the first indication information on CC3 in slot 1 3-1=2, the number of data blocks in the downlink data that the terminal receives from the base station to the terminal in CC3 in slot 2 is 2. Since the terminal already knows that there are 3 data block transmissions from the start time of the first time and frequency resources to the time slot 2 on CC3, there are 5 from the start time of the first time and frequency resources to the time slot 3 on CC3. For data block transmission, the terminal subtracts the number of data blocks indicated by the first indication information on CC3 in slot 3 from the number of data blocks indicated by the first indication information on CC3 in slot 2, that is, 5-3=2 The number of data blocks in the downlink data that the terminal receives from the base station to the terminal in CC3 in slot 3 is 2. Similarly, the terminal may also calculate the number of data blocks transmitted in different time slots on the same CC according to the first indication information in different time slots on the same CC.

It should be noted that, in this embodiment, the data block may be a combination of any one or more of the transport block TB, the code block group CBG, and the code block CB. For example, in this embodiment, all data blocks may be CBG; or all data blocks may be TB; or all data blocks may be CB; or any data block on CC1 is a CBG, CC2 and Any one of the data blocks on CC3 is one TB; or any one of the data blocks in time slot 1 is one CBG, and one of the data blocks in time slot 2 and time slot 3 is one TB.

It should be noted that there is a case of bundling when feeding back ACK and/or NACK. For example, if 12 bits need to be fed back, after using bundling, only 3 bits may need to be fed back, and each bit is original. The 4 bits in the feedback bits are the result of an AND operation. At this time, 1 bit represents the demodulation result of 4 transmissions. Any one of the 4 demodulation errors will be retransmitted. Therefore, when not applying any bundling processing, Feed 12 bits of information.

Further, after receiving the multiple downlink control information sent by the base station and the multiple downlink data scheduled by the multiple downlink control information, the terminal first needs to receive according to the first time and frequency resources. And determining, by the plurality of second indication information, the number Z of the feedback information, that is, according to the plurality of second indication information, it is required to feed back 3+4+5=12 bits when the bundling is not used, and the feedback information is used to indicate the data. a receiving condition of the block, including ACK, NACK, and/or DTX, and determining, according to one or more first indication information received within the first time and frequency resource, a location of the Z feedback information in the uplink control information, and then, The terminal sends uplink control information to the base station, where the uplink control information includes Z feedback information. For example, the Z feedback information includes X ACKs and/or Y NACKs, X is an integer greater than or equal to 1 and less than or equal to Z, Y is an integer greater than or equal to 1 and less than or equal to Z, and the sum of X and Y is equal to Z. The terminal determines, according to the one or more first indication information received in the first time and the frequency resource, a location of the X ACKs in the uplink control information, and/or a location of the Y NACKs in the uplink control information. For example, the first three bits represent the ACK or NACK of the three data blocks on CC1, the next four bits represent the ACK or NACK of the four data blocks on CC2, and the last five bits represent the five data on CC3. The ACK or NACK condition of the block then concatenates the ACK or NACK results on each CC. If the terminal receives the 12 data blocks:

| Success Success | | Success |

| Success Failure | Success Success | |

|success|failure failure|success success|

Then, the 12 bits that the terminal feeds back to the base station are 111 1011 10011.

In the 5G NR, the base station can support both slot-based and mini-slot-based transmissions. In 5G NR, one time slot is generally defined as n symbols, and one mini-slot is defined as 2 to n-1 symbols, where n is generally taken as 7 or 14. The slot-based transmission means that the minimum scheduling unit of the transmission is a slot, and the mini-slot based transmission can set the minimum scheduling unit to be shorter than one slot (ie, a mini-slot). Figure 12 is an example of slot-based and mini-slot based transmission, with each box in Figure 12 being a symbol. Typically, mini-slot based transmissions can be used when there is less latency or when less data is required to be transmitted. In the embodiment of the present invention, the multiple downlink control information and the multiple downlink data that are sent by the base station to the terminal in the first time and the frequency resource are transmitted based on the time slot and/or the mini time slot, and are applicable to the time slot only transmission. Or only mini-slot based transmissions, or both time slot based and mini slot based transmissions.

For example, FIG. 13 is a schematic diagram of downlink transmission of a base station and a terminal according to an embodiment of the present invention. The difference from FIG. 10 is that, corresponding to time slot 3 on CC1 of FIG. 10, FIG. 13 is based on two mini time slots, respectively Time slot 1 and mini time slot 2. Then, the time resource unit in the downlink transmission of the base station and the terminal shown in FIG. 13 is a combination of a time slot and a mini slot. At this time, the time resource unit on CC1 is 4, and the transmission on CC1 in each minislot includes one data block. It should be noted that the implementation manners of CC2 and CC3 are similar to the implementation manners shown in FIG. 10, and details are not described herein again.

Based on the downlink transmission provided in FIG. 13, as shown in FIG. 14, the first implementation manner of the first indication information and the second indication information is different from that of FIG. 11 in that there is 1 in CC1 in the minislot 1 The data block is transmitted, and there are already 2 data block transmissions on the CC1 in the time slot 1 before the minislot 1. The downlink indication information sent by the base station to the terminal includes the first indication information indicating the first time and the CC1. There are 3 data block transmissions from the start time of the frequency resource to the mini time slot 1, and the second indication information indicates that there are 4 data blocks transmitted from the time slot 1 to the mini time slot 2 on the CC1, and the time slot is received at the terminal. After the downlink control information on CC1, the terminal may obtain, according to the indication of the first indication information, three data block transmissions from the start time of the first time and frequency resource to the mini slot 1 on CC1, and according to the second Indication of indication It is again confirmed that there are 4 data block transmissions from time slot 1 to mini time slot 2 on CC1, wherein the second time and frequency resource is from the start time of the first time and frequency resource on CC1 to the mini time slot 1 The third time and frequency resource is from slot 1 to minislot 2 on CC1; there is 1 data block transmission on CC1 in minislot 2, and on CC1 in slot 1 before minislot 2 There are already 2 data block transmissions, and 1 data block transmission is already on the CC1 in the minislot 1. The first indication information included in the downlink control information sent by the base station to the terminal indicates the first time and frequency resources on the CC1. There are 4 data block transmissions in the mini-slot 2 from the start time, and the second indication information indicates that there are 4 data blocks transmitted from the time slot 1 to the mini-slot 2 on the CC1, and the time slot 1 is received in the terminal. After the downlink control information on the CC1, the terminal may obtain, according to the indication of the first indication information, four data block transmissions from the start time of the first time and frequency resource to the mini time slot 2 on the CC1, and according to the second indication information. The indication is again confirmed to get from slot 1 to fan on CC1 There are 4 data block transmissions in slot 2, where the second time and frequency resources are from the start time of the first time and frequency resources on CC1 to the minislot 4, and the third time and frequency resources are on CC1. From time slot 1 to mini time slot 2. It should be noted that the implementation manners of CC2 and CC3 are similar to the implementation manners shown in FIG. 11, and details are not described herein again. On each CC, the terminal may calculate, according to the method described in FIG. 11, the number of data blocks transmitted in different time slots on the same CC according to the first indication information in different time slots on the same CC. I will not repeat them here.

It should be noted that, in the case that the subcarrier spacing included in each component carrier is different, the length of the time resource unit is based on the length of the time resource unit of the first component carrier.

It should be noted that, in this embodiment, the data block may be a combination of any one or more of the transport block TB, the code block group CBG, and the code block CB. For example, in this embodiment, all data blocks may be CBG; or all data blocks may be TB; or all data blocks may be CB; or any data block on CC1 is a CBG, CC2 and Any one of the data blocks on CC3 is one TB; or any one of the data blocks in slot 1 is one CBG, and one of the data blocks in slot 2, minislot 1 and minislot 2 is one TB.

For example, FIG. 15 is a schematic diagram of downlink transmission of a base station and a terminal according to an embodiment of the present invention. The base station configures a CA or an inband CA for the terminal, and includes three downlink component carriers of CC1, CC2, and CC3 in the first time and frequency resources. That is, M is equal to 3, and each downlink component carrier has a different numerology, CC1 is the primary carrier, the subcarrier spacing is 30KHZ, the subcarrier spacing of CC2 is half of 15KHZ of CC1, and the subcarrier spacing of CC3 is twice that of CC1. 60KHZ. It is assumed that the time resource units on each component carrier are time slots, the larger the subcarrier spacing in the frequency domain is, the shorter the time slot in the corresponding time domain is, and the length of the time resource unit is the length of the time resource unit of the first component carrier. Quasi, that is, the slot length of CC2 and the slot length of CC3 are based on the slot length of CC1. As shown in FIG. 10, there are three time resource units in CC1 in the first time and frequency resource, therefore, CC2 and CC3. There are 3 time resource units on it. For example, as shown in FIG. 15, since the subcarrier spacing of CC2 is half of CC1, the lengths of slot 1 and slot 2 of CC1 correspond to the length of slot 1 of CC2, since the subcarrier spacing of CC3 is two of CC1. Therefore, the length of slot 1 of CC3 corresponds to half the length of slot 1 of CC1, and the length of two slots of CC3 corresponds to the length of slot 1 of CC1. In the first time and frequency resources, the base station configures seven downlink data transmissions for the terminal, and the transmission on CC1 in slot 1 includes two data blocks; the transmission on CC1 in time slot 3 includes one data block; The transmission on CC2 in slot 1 contains 4 data blocks, the transmission spanning slot 1 and slot 2, but its transmission start position is located in slot 1, so the transmission is considered to be located in slot 1; The transmission on CC3 in slot 1 contains one data block; the two transmissions on CC3 in slot 2 each contain one data block; the transmission on CC3 in slot 3 contains one data block.

The first implementation manner of the first indication information and the second indication information is elaborated below through the downlink transmission provided in FIG. 15, as shown in FIG.

On the CC1 in the slot 1, there are 2 data blocks transmitted, and there is no other data block transmission on the CC1 before the time slot 1. The downlink indication information sent by the base station to the terminal includes the first indication information indicating that the CC1 is on the CC1. The first time and the start time of the frequency resource have two data block transmissions in the time slot 1, and the second indication information indicates that there are 3 data block transmissions from the time slot 1 to the time slot 3 on the CC1, and are received at the terminal. After the downlink control information on the CC1 in the time slot 1, the terminal may obtain, according to the indication of the first indication information, two data block transmissions from the start time of the first time and frequency resource to the time slot 1 on the CC1, and according to the The indication of the two indication information is obtained by transmitting 3 data blocks from slot 1 to slot 3 on CC1, wherein the second time and frequency resource is from the start time of the first time and frequency resource to the slot on CC1. 1. The third time and frequency resource is from slot 1 to slot 3 on CC1; there is one data block transmission on CC1 in slot 3, and there is already on CC1 in slot 1 before slot 3. 2 data block transmission, the downlink control information sent by the base station to the terminal includes The first indication information indicates that there are 3 data block transmissions from the start time of the first time and frequency resource to the time slot 3 on the CC1, and the second indication information indicates that there are 3 times from the time slot 1 to the time slot 3 on the CC1. After the data block is transmitted, after the terminal receives the downlink control information on the CC1 in the time slot 3, the terminal may obtain, according to the indication of the first indication information, the time from the start time of the first time and frequency resource to the time slot 3 on the CC1. 3 data block transmissions, and reconfirming according to the indication of the second indication information, there are 3 data block transmissions from time slot 1 to time slot 3 on CC1, wherein the second time and frequency resources are from CC1 The start time of a time and frequency resource to time slot 3, the third time and frequency resource is from time slot 1 to time slot 3 on CC1. It should be noted that since the terminal already knows that there are 2 data block transmissions from the start time of the first time and frequency resource to the time slot 1 on the CC1, there are 3 data from the time slot 1 to the time slot 3 on the CC1. In block transmission, the terminal subtracts the number of data blocks indicated by the first indication information on CC1 in slot 3 from the number of data blocks indicated by the first indication information on CC1 in slot 1, that is, 3-2=1. The number of data blocks in the downlink data that the terminal receives from the base station to the terminal in CC1 in slot 3 is 1.

On the CC2 in the slot 1, there are 4 data blocks transmitted, and there is no other data block transmission on the CC2 before the time slot 1. The downlink indication information sent by the base station to the terminal includes the first indication information indicating that the CC2 is on the CC2. The first time and the start time of the frequency resource have 4 data block transmissions in the time slot 1, and the second indication information indicates that there are 4 data block transmissions from the time slot 1 to the time slot 3 on the CC2, and are received at the terminal. After the downlink control information on the CC2 in the time slot 1, the terminal may obtain, according to the indication of the first indication information, four data blocks from the start time of the first time and frequency resource to the time slot 1 on the CC2, and according to the The indication of the two indication information is obtained by transmitting 4 data blocks from slot 1 to slot 3 on CC2, wherein the second time and frequency resource is from the start time of the first time and frequency resource to the slot on CC2. 1. The third time and frequency resource is from time slot 1 to time slot 3 on CC2.

In the time slot 1 of the CC3, there is one data block transmission, and there is no other data block transmission on the CC3 before the time slot 1. The downlink indication information sent by the base station to the terminal includes the first indication information indicating that the CC3 is on the CC3. The first time and the start time of the frequency resource have one data block transmission in the time slot 1, and the second indication information indicates that there are 4 data block transmissions from the time slot 1 to the time slot 3 on the CC3, and are received at the terminal. After the downlink control information on the CC3 in the time slot 1, the terminal may obtain, according to the indication of the first indication information, a data block transmission from the start time of the first time and frequency resource to the time slot 1 on the CC3, and according to the The indication of the two indication information is obtained by transmitting 4 data blocks from slot 1 to slot 3 on CC3, wherein the second time and frequency resource is from the start time of the first time and frequency resource to the time slot on CC3. 1. The third time and frequency resources are from slot 1 to slot 3 on CC3; on CC3 in slot 2, there are two downlink data transmissions, one for each data block transmission, and before time slot 2 There is already one data block transmission on CC3 in slot 1, and the base station sends the terminal to the terminal. The two pieces of first indication information included in the downlink control information sent are respectively indicated on CC3, and the first downlink data transmission from the start time of the first time and frequency resource to the first downlink data in the time slot 2 has two data blocks and The start time of a time and frequency resource to the second downlink data transmission in time slot 2 has 3 data block transmissions, and the second indication information indicates from time slot 1 to time on CC3 There are 4 data block transmissions in slot 3. After the terminal receives the downlink control information on CC3 in slot 2, the terminal can obtain the starting time of the first time and frequency resource on CC3 according to the indication of the first indication information. There are 2 data blocks and 3 data block transmissions in time slot 2, and 4 data blocks are transmitted from time slot 1 to time slot 3 on CC3 according to the indication of the second indication information, wherein the second time sum The frequency resource is from the start time of the first time and frequency resource to the time slot 2 on the CC3, the third time and frequency resource is from the time slot 1 to the time slot 3 on the CC3; on the CC3 in the time slot 3, there is 1 The data block is transmitted, and there is one data block transmission on CC3 in slot 1 before slot 3, and two data block transmissions on CC3 in slot 2, and the downlink control information sent by the base station to the terminal includes The first indication information indicates that there are 4 data block transmissions from the start time of the first time and frequency resource to the time slot 3 on the CC3, and the second indication information indicates that there is a time slot 1 to the time slot 3 on the CC3. 4 data block transmissions, after the terminal receives the downlink control information on CC3 in time slot 3, The terminal may obtain, according to the indication of the first indication information, four data block transmissions from the start time of the first time and frequency resource to the time slot 3 on the CC3, and obtain the slave time slot on the CC3 according to the indication of the second indication information. There are 4 data block transmissions from 1 to 3, wherein the second time and frequency resources are from the start time of the first time and frequency resources to the time slot 3 on CC3, and the third time and frequency resources are on the CC3. From time slot 1 to time slot 3. It should be noted that, on each CC, the terminal may calculate and acquire the transmissions in different time slots on the same CC according to the first indication information in different time slots on the same CC according to the method similar to that in FIG. The number of data blocks will not be described here.

Further, after receiving the multiple downlink control information sent by the base station and the multiple downlink data scheduled by the multiple downlink control information, the terminal first needs to receive according to the first time and frequency resources. And determining, by the plurality of second indication information, the number Z of the feedback information, that is, according to the plurality of second indication information, information that needs to be fed back 3+4+4=11 bits when not using bundling, and according to the first time And determining, by the one or more first indication information received in the frequency resource, the location of the Z feedback information in the uplink control information, and then the terminal sends the uplink control information to the base station, where the uplink control information includes Z feedback information; The terminal sends uplink control information to the base station, where the uplink control information includes Z feedback information. For example, the Z feedback information includes X ACKs and/or Y NACKs, X is an integer greater than or equal to 1 and less than or equal to Z, Y is an integer greater than or equal to 1 and less than or equal to Z, and the sum of X and Y is equal to Z. The terminal determines, according to the one or more first indication information received in the first time and the frequency resource, a location of the X ACKs in the uplink control information, and/or a location of the Y NACKs in the uplink control information. For example, the first three bits represent the ACK or NACK of the three data blocks on CC1, the next four bits represent the ACK or NACK of the four data blocks on CC2, and the last four bits represent the four data on CC3. The ACK or NACK condition of the block then concatenates the ACK or NACK results on each CC. For example, if the terminal receives the 11 data blocks:

| Success Success | | Success |

| Success Failure Success Success | | |

|success|failure failure|success|

Then, the 11 bits that the terminal feeds back to the base station are 111 1011 1001.

For example, FIG. 17 is a schematic diagram of downlink transmission of a base station and a terminal according to an embodiment of the present invention. The difference from FIG. 15 is that, corresponding to time slot 3 on CC1 of FIG. 15, FIG. 17 is based on two mini time slots, respectively Mini Slot 1 and Mini Slot 2. Then, the time resource unit in the downlink transmission of the base station and the terminal shown in FIG. 17 is a combination of a time slot and a mini slot. At this time, the time resource unit on CC1 is 4, and the transmission on CC1 in each minislot includes one data block. It should be noted that the implementation manners of CC2 and CC3 are similar to the implementation manners shown in FIG. 15, and details are not described herein again. Based on the downlink transmission provided in FIG. 17, as shown in FIG. 18, the first implementation manner of the first indication information and the second indication information, other detailed steps are similar to the description of FIG. 16, and details are not described herein again.

In a second implementation manner, the first indication information is specifically used to indicate that the first time and the frequency resource start time to the jth time resource unit on the i-th component carrier, and a number of data blocks co-transmitted by the component carrier to all time resource units on the i-1th component carrier, j is greater than or equal to 1 and less than or equal to N _i , and N _i represents a time resource unit on the i-th component carrier, The second time and frequency resources are from the start time of the first time and frequency resource to the jth time resource unit on the i-th component carrier, and from the first component carrier to the i-1th component carrier All the time resource units; the second indication information is specifically used to indicate the number of data blocks that are co-transmitted in all time resource units from the first component carrier to the i-th component carrier, and the third time and frequency resource is All time resource elements from the 1st component carrier to the ith component carrier.

The second implementation manner of the first indication information and the second indication information is clarified in detail by the downlink transmission provided in FIG. 10, as shown in FIG.

On CC1 in time slot 1, the first indication information indicates that there are 2 data block transmissions from the start time of the first time and frequency resource to the time slot 1 on CC1, and the second indication information is indicated on CC1, and There are 3 data block transmissions in time slot 1 to time slot 3, wherein the second time and frequency resource is from the start time of the first time and frequency resource to the time slot 1 on CC1, and the third time and frequency resource is From slot 1 to slot 3 on CC1; on CC1 in slot 3, the first indication information indicates that there are 3 data block transmissions from the start time of the first time and frequency resource to the time slot 3 on CC1, and The second indication information indicates that there are 3 data block transmissions from time slot 1 to time slot 3 on CC1, wherein the second time and frequency resource is from the start time of the first time and frequency resource to the time slot 3 on CC1. The third time and frequency resource is from time slot 1 to time slot 3 on CC1.

On CC2 in time slot 1, the first indication information indicates from the start time of the first time and frequency resource to the time slot 3 on CC1, and from the start time of the first time and frequency resource to the time slot 1 on CC2. There are 5 data block transmissions in total, and the second indication information indicates that there are 7 data block transmissions from time slot 1 to time slot 3 on CC1 to CC2, wherein the second time and frequency resources are from the first on CC1. The start time of the time and frequency resources to the time slot 3, and from the start time of the first time and frequency resource to the time slot 1 on CC2, the third time and frequency resource is from time slot 1 to CC1 to CC2 Time slot 3; on CC2 in time slot 2, the first indication information indicates from the start time of the first time and frequency resource to the time slot 3 on CC1, and from the start time of the first time and frequency resource on CC2 There are 7 data block transmissions in time slot 2, and the second indication information indicates that there are 7 data block transmissions from time slot 1 to time slot 3 on CC1 to CC2, wherein the second time and frequency resources are in CC1. From the start time of the first time and frequency resources to the time slot 3, and from the first time on the CC2 And the start time of the frequency resource to time slot 2, the third time and frequency resource is from time slot 1 to time slot 3 on CC1 to CC2.

On CC3 in slot 1, the first indication information indicates from the start time of the first time and frequency resource to the time slot 3 on CC1 to CC2, and from the start time of the first time and frequency resource on CC3. There are 8 data block transmissions in slot 1, and the second indication information indicates that there are 12 data block transmissions from time slot 1 to time slot 3 on CC1 to CC3, wherein the second time and frequency resources are in CC1 to CC2. From the start time of the first time and frequency resource to the time slot 3, and from the start time of the first time and frequency resource to the time slot 1 on CC3, the third time and frequency resource is at CC1 to CC3 Up from slot 1 to slot 3; on CC3 in slot 2, the first indication information indicates from the start time of the first time and frequency resource to the slot 3 on CC1 to CC2, and from the first on CC3 There are a total of 10 data block transmissions from the start time of the time and frequency resources to the time slot 2, and the second indication information indicates that there are 12 data block transmissions from the time slot 1 to the time slot 3 on CC1 to CC3, wherein The two time and frequency resources are from the start time of the first time and frequency resource to the time slot 3 on CC1 to CC2, and from the start time of the first time and frequency resource on CC3 to the time slot 2, the third time And the frequency resource is from slot 1 to slot 3 on CC1 to CC3; on CC3 in slot 3, the first indication information indicates from the start time of the first time and frequency resource to the slot 3 on CC1 to CC2 There are 12 data block transmissions from the start time of the first time and frequency resource to the time slot 3 on CC3, and the second indication information indicates that there are 12 from time slot 1 to time slot 3 on CC1 to CC3. Data block transmission, wherein the second time and frequency resources are from the first time and frequency resources on CC1 to CC2 3 to the slot start time, and in the CC3 and start timing from the first time-frequency resource to the slot 3, a third time and frequency resources as the CC1 to CC3 from slot 1 to slot 3. It should be noted that, on each CC, the terminal may calculate and acquire the transmissions in different time slots on the same CC according to the first indication information in different time slots on the same CC according to the method similar to that in FIG. The number of data blocks will not be described here. Other detailed steps are similar to those of FIG. 11 and will not be described again here.

Based on FIG. 13, the second implementation manner of the first indication information and the second indication information indicates the number of data blocks in the downlink data sent by the base station to the terminal. As shown in FIG. 20, similar steps may be referred to FIG. Detailed description will not be repeated here.

Based on FIG. 15, the second implementation manner of the first indication information and the second indication information indicates the number of data blocks in the downlink data sent by the base station to the terminal, as shown in FIG. 21, and the similar steps may refer to FIG. Detailed description will not be repeated here.

Based on FIG. 17, the second implementation manner of the first indication information and the second indication information indicates the number of data blocks in the downlink data sent by the base station to the terminal. As shown in FIG. 22, similar steps may be referred to FIG. 18. Detailed description will not be repeated here.

In a third implementation manner, the first indication information is specifically used to indicate that the first time and the frequency resource start time to the jth time resource unit on the i-th component carrier, and The number of data blocks transmitted by the component carrier to all time resource units on the i-1th component carrier, j is greater than or equal to 1 and less than or equal to N _i , and the second time and frequency resource is on the i th component carrier From the start time of the first time and frequency resource to the jth time resource unit, and all time resource units on the first component carrier to the i-1th component carrier; the second indication information is specifically used for Indicates the number of data blocks that are co-transmitted in all time resource units on the M component carriers, and the third time and frequency resources are all time resource units on the M component carriers. The third implementable manner of the first indication information and the second indication information is different from the second implementation manner of the first indication information and the second indication information in that the second indication information indicates all on the M component carriers The number of data blocks that are co-transmitted in the time resource unit, that is, the second indication information in FIG. 19 to FIG. 22 is changed to indicate the number of data blocks that are co-transmitted in all time resource units on the M component carriers, and other Similar steps can be described in detail in FIG. 11, FIG. 14, FIG. 16, and FIG. 18, and details are not described herein again.

It should be noted that, for the fourth implementation manner of the first indication information and the second indication information to the sixth implementation manner, in a case where the subcarrier spacing included in each component carrier is different or on each component carrier In the case where the included subcarrier spacing is the same, the length of the time resource unit is based on the length of the time resource unit of the first component carrier. The various implementations are described in detail below.

In a fourth implementation manner, the first indication information is specifically used to indicate the number of data blocks transmitted from the first component carrier to the ith component carrier in the jth time resource unit, where j is greater than or equal to 1 and less than or equal to N ₁ , the second time and frequency resource is from the first component carrier to the ith component carrier in the jth time resource unit; the second indication information is specifically used to indicate the jth time resource. The number of data blocks transmitted on the M component carriers in the unit, and the third time and frequency resources are M component carriers in the jth time resource unit; wherein the length of the time resource unit is the time of the first component carrier The length of the resource unit is subject to change.

The fourth implementation manner of the first indication information and the second indication information is elaborated below through the downlink transmission provided in FIG. 10, as shown in FIG.

On CC1 in slot 1, the first indication information indicates that there are 2 data block transmissions on CC1 in slot 1, and the second indication information indicates that there are 5 data block transmissions from CC1 to CC3 in slot 1. The second time and frequency resource is in CC1 in slot 1, the third time and frequency resource is in CC1 to CC3 in slot 1, and in CC1 in slot 1, the first indication information indicates in time. There are 4 data block transmissions from CC1 to CC2 in slot 1, and the second indication information indicates that there are 5 data block transmissions from CC1 to CC3 in slot 1, wherein the second time and frequency resources are in the time slot. In the case of 1 from CC1 to CC2, the third time and frequency resources are from CC1 to CC3 in time slot 1; in CC1 in time slot 1, the first indication information indicates that there is a time from CC1 to CC3 in time slot 1. 5 data block transmissions, and the second indication information indicates that there are 5 data block transmissions from CC1 to CC3 in slot 1, wherein the second time and frequency resources are from CC1 to CC3 in slot 1 The three time and frequency resources are from CC1 to CC3 in time slot 1.

On CC2 in slot 2, the first indication information indicates that there are 2 data block transmissions from CC1 to CC2 in slot 2, and the second indication information indicates that there are 4 data from CC1 to CC3 in slot 2. Block transmission, wherein the second time and frequency resources are from CC1 to CC2 in time slot 2, the third time and frequency resources are from CC1 to CC3 in time slot 2; on CC3 in time slot 2, An indication message indicates that there are 4 data block transmissions from CC1 to CC3 in time slot 1, and the second indication information indicates that there are 4 data block transmissions from CC1 to CC3 in time slot 2, wherein the second time sum The frequency resources are from CC1 to CC3 in time slot 2, and the third time and frequency resources are from CC1 to CC3 in time slot 2.

In CC1 in slot 3, the first indication information indicates that there are 2 data block transmissions on CC1 in slot 3, and the second indication information indicates that there are 3 data block transmissions from CC1 to CC3 in slot 3. The second time and frequency resource is on CC1 in time slot 3, the third time and frequency resource is from CC1 to CC3 in time slot 3, and the first indication information is from CC1 to CC3 in time slot 3. Indicates that there are 3 data block transmissions from CC1 to CC3 in time slot 3, and the second indication information indicates that there are 3 data block transmissions from CC1 to CC3 in time slot 3, wherein the second time and frequency resources are From CC1 to CC3 in time slot 3, the third time and frequency resources are from CC1 to CC3 in time slot 3. It should be noted that since the terminal already knows that there are 4 data block transmissions from CC1 to CC2 in slot 1, and there are 2 data block transmissions on CC1 in slot 1, the terminal will be on CC2 in slot 1. The number of data blocks indicated by the first indication information is subtracted from the number of data blocks indicated by the first indication information on the CC1 in the slot 1, that is, 4-2=2, and the terminal receives the base station on the CC2 in the slot 1 The number of data blocks in the downlink data sent by the terminal is 2. Similarly, the terminal may calculate, according to the first indication information on different CCs in the same time slot, the number of data blocks transmitted on different CCs in the same time slot.

It should be noted that, in this embodiment, the data block may be any one of the transport block TB, the code block group CBG, and the code block CB. A combination of one or more. For example, in this embodiment, all data blocks may be CBG; or all data blocks may be TB; or all data blocks may be CB; or any data block on CC1 is a CBG, CC2 and Any one of the data blocks on CC3 is one TB; or any one of the data blocks in time slot 1 is one CBG, and one of the data blocks in time slot 2 and time slot 3 is one TB.

Further, after receiving the multiple downlink control information sent by the base station and the multiple downlink data scheduled by the multiple downlink control information, the terminal first needs to receive according to the first time and frequency resources. The plurality of second indication information that is obtained, determining the number Z of the feedback information, that is, according to the plurality of second indication information, knowing that 3+4+5=12 bits of information need to be fed back when the bundling is not used, and the feedback information is used to indicate the data. The receiving condition of the block, including ACK, NACK, and/or DTX, where Z is the number of data in the downlink data sent by the base station received by the terminal in the first time and the frequency resource, and according to the first time and the frequency resource The received one or more first indication information determines the location of the Z feedback information in the uplink control information, and then the terminal sends uplink control information to the base station, where the uplink control information includes Z feedback information. For example, the Z feedback information includes X ACKs and/or Y NACKs, X is an integer greater than or equal to 1 and less than or equal to Z, Y is an integer greater than or equal to 1 and less than or equal to Z, and the sum of X and Y is equal to Z. The terminal determines, according to the one or more first indication information received in the first time and the frequency resource, a location of the X ACKs in the uplink control information, and/or a location of the Y NACKs in the uplink control information. For example, the first five bits represent the ACK or NACK of the five data blocks on time slot 1, the next four bits represent the ACK or NCAK of the four data blocks on time slot 2, and the last three bits represent the time slot. In the case of ACK or NACK for three data blocks on 3, the ACK or NACK results on each time slot are then concatenated. If the terminal receives the 12 data blocks:

| Success Success | | Success |

| Success Failure | Success Success | |

|success|failure failure|success success|

Then, the 12 bits that the terminal feeds back to the base station are 11101 1100 111.

Other detailed steps are similar to those of FIG. 11 and will not be described again here.

The fourth implementation manner of the first indication information and the second indication information is used to indicate the number of data blocks in the downlink data sent by the base station to the terminal, as shown in FIG. 24, similar steps may be referred to FIG. 14 and FIG. A detailed description of 23 will not be repeated here.

For example, as shown in FIG. 25, when the time resource units are all time slots, the mini time slot 1 and the mini time slot 2 on CC1 can also be regarded as being located in the same time slot, using the first indication information and the second indication. The fourth achievable manner of the information indicates that the number of data blocks in the downlink data sent by the base station to the terminal is as shown in FIG. 25, and the difference from FIG. 24 is that the three downlink transmissions in the time slot 3 are respectively (1, 4). (2, 4) (4, 4), similar steps may be referred to the detailed description of FIG. 14 and FIG. 23, and details are not described herein again. I will not repeat them here.

The fourth implementation manner of the first indication information and the second indication information is used to indicate the number of data blocks in the downlink data sent by the base station to the terminal, as shown in FIG. 26, and similar steps may be referred to FIG. 16 and FIG. A detailed description of 23 will not be repeated here.

The fourth implementation manner of the first indication information and the second indication information is used to indicate the number of data blocks in the downlink data sent by the base station to the terminal, as shown in FIG. 27, and similar steps may be referred to FIG. 18 and FIG. A detailed description of 23 will not be repeated here.

For example, as shown in FIG. 27, when the time resource units are all time slots, the mini time slot 1 and the mini time slot 2 on CC1 can also be regarded as being located in the same time slot, using the first indication information and the second indication. The fourth achievable way of information indicates the base station The number of data blocks in the downlink data transmitted to the terminal is as shown in FIG. 28, and the difference from FIG. 27 is that the three downlink transmissions in the slot 3 are respectively (1, 3) (2, 3) (3, 3). For a similar step, reference may be made to the detailed description of FIG. 18 and FIG. 23, and details are not described herein again. I will not repeat them here.

In a fifth implementation manner, the first indication information is specifically used to indicate that the first component carrier to the i-th component carrier are in the j-th time resource unit, and from the first time resource unit to the first The number of all data blocks transmitted on the M component carriers in j-1 time resource units, j is greater than or equal to 1 and less than or equal to N ₁ , and the second time and frequency resources are from the first in the jth time resource unit a component carrier to the i-th component carrier, and from the first time resource unit to the j-1th time resource unit, the M component carriers; the second indication information is specifically used to indicate the first time resource unit a number of data blocks transmitted on the M component carriers in the jth time resource unit, where the third time and frequency resources are in the M component carriers from the first time resource unit to the jth time resource unit; The length of the time resource unit is based on the length of the time resource unit of the first component carrier.

The fifth implementation manner of the first indication information and the second indication information is elaborated below through the downlink transmission provided in FIG. 10, as shown in FIG. 29:

On CC2 in time slot 2, the first indication information indicates that there are 7 data block transmissions from CC1 to CC2 in time slot 2, and from CC1 to CC3 in time slot 1, and the second indication information indicates that the time is There are 9 data block transmissions from CC1 to CC3 in slot 1 to slot 2, wherein the second time and frequency resources are from CC1 to CC2 in slot 2 and from CC1 to CC3 in slot 1. The third time and frequency resources are from CC1 to CC3 in slot 1 to slot 2; on CC3 in slot 2, the first indication information indicates from CC1 to CC3 in slot 2, and at the time There are 9 data block transmissions from CC1 to CC3 in slot 1, and the second indication information indicates that there are 9 data block transmissions from CC1 to CC3 in slot 1 to slot 2, wherein the second time and frequency resources To be from CC1 to CC3 in time slot 2, and from CC1 to CC3 in time slot 1, the third time and frequency resources are from CC1 to CC3 in time slot 1 to time slot 2.

On CC1 in time slot 3, the first indication information indicates that there are 10 data block transmissions on CC1 in time slot 3, and from CC1 to CC3 in time slot 1 to time slot 2, and the second indication information indicates There are 12 data block transmissions from CC1 to CC3 in slot 1 to slot 3, wherein the second time and frequency resources are on CC1 in slot 3, and from CC1 in slot 1 to slot 2. On CC3, the third time and frequency resources are from CC1 to CC3 in slot 1 to slot 3; in CC3 in slot 3, the first indication information indicates from CC1 to CC3 in slot 3, and There are 12 data block transmissions from CC1 to CC3 in slot 1 to slot 2, and the second indication information indicates that there are 12 data block transmissions from CC1 to CC3 in slot 1 to slot 3. The second time and frequency resources are from CC1 to CC3 in slot 3, and from CC1 to CC3 in slot 1 to slot 2, and the third time and frequency resources are in slot 1 to slot 3. From CC1 to CC3. It should be noted that, in each time slot, the terminal may be in the same according to the method similar to that described in FIG. The first indication information on the different CCs in the time slot is used to calculate the number of data blocks transmitted on different CCs in the same time slot, and details are not described herein. Other detailed steps are similar to those of FIG. 11 and FIG. 23, and are not described herein again.

The fifth implementation manner of the first indication information and the second indication information is used to indicate the number of data blocks in the downlink data sent by the base station to the terminal, as shown in FIG. 30, and similar steps may be referred to FIG. 14 and FIG. The detailed description of FIG. 23 and FIG. 29 will not be repeated here.

For example, as shown in FIG. 31, when the time resource units are all time slots, the mini time slot 1 and the mini time slot 2 on CC1 can also be regarded as being located in the same time slot, using the first indication information and the second indication. The fifth achievable manner of the information indicates that the number of data blocks in the downlink data sent by the base station to the terminal is as shown in FIG. 31, and the difference from FIG. 30 is that the three downlink transmissions in the time slot 3 are respectively (10, 13). (11, 13) (12, 13), similar steps may be referred to the detailed description of FIG. 14, FIG. 23 and FIG. 29, and details are not described herein again. I will not repeat them here.

The fifth implementation manner of the first indication information and the second indication information is used to indicate the number of data blocks in the downlink data sent by the base station to the terminal, as shown in FIG. 32, and similar steps may be referred to FIG. The detailed description of FIG. 23 and FIG. 29 will not be repeated here.

The fifth implementation manner of the first indication information and the second indication information is used to indicate the number of data blocks in the downlink data sent by the base station to the terminal, as shown in FIG. 33, and similar steps may be referred to FIG. 18 and FIG. The detailed description of FIG. 23 and FIG. 29 will not be repeated here.

For example, as shown in FIG. 34, when the time resource units are all time slots, the mini time slot 1 and the mini time slot 2 on CC1 can also be regarded as being located in the same time slot, using the first indication information and the second indication. The fifth achievable manner of the information indicates that the number of data blocks in the downlink data sent by the base station to the terminal is as shown in FIG. 34, and the difference from FIG. 33 is that the three downlink transmissions in the time slot 3 are respectively (10, 12). (11, 12) (12, 12), similar steps may be referred to the detailed description of FIG. 18, FIG. 23 and FIG. 29, and details are not described herein again. I will not repeat them here.

In a sixth implementation manner, the first indication information is specifically used to indicate that the first component carrier to the i-th component carrier are in the jth time resource unit, and from the first time resource unit to the first The number of all data blocks transmitted on the M component carriers in j-1 time resource units, j is greater than or equal to 1 and less than or equal to N ₁ , and the second time and frequency resources are from the first in the jth time resource unit The component carriers to the i-th component carrier, and the M component carriers from the first time resource unit to the j-1th time resource unit; the second indication information is specifically used to indicate the M component carriers. The number of data blocks transmitted in all time resource units, and the third time and frequency resources are all time resource units on the M component carriers; wherein the length of the time resource unit is the time resource unit of the first component carrier The length shall prevail. The sixth implementation manner of the first indication information and the second indication information is different from the fifth implementation manner of the first indication information and the second indication information, that the second indication information indicates all on the M component carriers The number of data blocks that are co-transmitted in the time resource unit, that is, the second indication information in FIG. 29 to FIG. 34 indicates the number of data blocks that are co-transmitted in all time resource units on the M component carriers, and other similar steps. Reference may be made to the detailed descriptions in FIG. 11, FIG. 14, FIG. 16, and FIG. 18, and details are not described herein again.

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 base station and a terminal, 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. Professionals can use different methods for each specific application to implement the described functionality, but this implementation should not be considered beyond The scope of the invention.

The embodiments of the present invention may divide the functional modules of the base station and the terminal according to the foregoing method. For example, each functional 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. 35 is a schematic diagram showing a possible composition of the base station involved in the foregoing and the embodiments. As shown in FIG. 35, the base station 50 may include: a sending unit 501 and Receiving unit 502.

The sending unit 501 is configured to support the base station to perform step 401 in the indication method shown in FIG. 7 and step 401 in the indication method shown in FIG. 9.

The receiving unit 502 is configured to support the base station to perform step 404 in the indication method shown in FIG. 9.

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 base station provided by the embodiment of the present invention is configured to perform the foregoing indication method, so that the same effect as the above indication method can be achieved.

In the case of employing an integrated unit, FIG. 36 shows another possible composition diagram of the base station involved in the above embodiment. As shown in FIG. 36, the base station 60 includes a processing module 601 and a communication module 602.

The processing module 601 is configured to control and manage the actions of the base station. The communication module 602 is configured to support communication between the base station and other network entities. The base station may further include a storage module 603 for storing program codes and data of the base station.

The processing module 601 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 module 602 can be a transceiver, a transceiver circuit, a communication interface, or the like. The storage module 603 can be a memory.

When the processing module 601 is a processor, the communication module 602 is a communication interface, and the storage module 603 is a memory, the base station involved in the embodiment of the present invention may be the base station shown in FIG. 5.

FIG. 37 shows a possible composition diagram of the terminal involved in the foregoing embodiment and FIG. 37. As shown in FIG. 37, the terminal 70 may include: a sending unit 701 and Receiving unit 702.

The sending unit 701 is configured to support the terminal to perform step 403 in the indication method shown in FIG. 9.

The receiving unit 702 is configured to support the terminal 402 to perform step 402 in the indication method shown in FIG. 7 and step 402 in the indication method shown in FIG. 9.

The terminal provided by the embodiment of the present invention is configured to execute the foregoing indication method, so that the same effect as the above indication method can be achieved.

In the case of employing an integrated unit, FIG. 38 shows another possible composition diagram of the terminal involved in the above embodiment. As shown in FIG. 38, the terminal 80 includes a processing module 801 and a communication module 802.

The processing module 801 is configured to perform control management on the actions of the terminal. The communication module 802 is used to support the terminal and other networks. Body communication. The terminal may further include a storage module 803 for storing program codes and data of the terminal.

The processing module 801 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 module 802 can be a transceiver, a transceiver circuit, a communication interface, or the like. The storage module 803 can be a memory.

When the processing module 801 is a processor, the communication module 802 is a transceiver, and the storage module 803 is a memory, the terminal involved in the embodiment of the present invention may be the terminal shown in FIG. 6.

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 base station sends multiple downlink control information to the terminal in the first time and the frequency resource, and multiple downlink data scheduled by the multiple downlink control information;

Each of the downlink control information includes first indication information and second indication information, where the first indication information is used to indicate that the base station sends the downlink data to the terminal in a second time and frequency resource. The number of data blocks, the second indication information is used to indicate the number of the data blocks in the downlink data sent by the base station to the terminal in a third time and frequency resource, where the data block is a transmission A combination of any one or more of a block TB, a code block group CBG, and a code block CB.
The method of claim 1, wherein the first time and frequency resource comprises M component carriers and all time resource elements on the M component carriers, wherein the ith component There are N i time resource units on the carrier, the M is an integer greater than or equal to 1, the N i is an integer greater than or equal to 1, and the i is an integer greater than or equal to 1 and less than or equal to M, the time resource unit A combination of one or more of a time slot, a mini-slot, a sub-frame, a frame, and a symbol, the first time and frequency resource including the second time and frequency resource and the third time and frequency resource .
The method of claim 2 wherein:

The first indication information is specifically used to indicate, on the i-th component carrier, the data block that is transmitted from the start time of the first time and frequency resource to the jth time resource unit. a number, the j is greater than or equal to 1 and less than or equal to N i , and the second time and frequency resource is from the start time to the jth of the first time and frequency resource on the i th the component carrier Time resource unit

The second indication information is specifically used to indicate the number of the data blocks that are transmitted in the N i time resource units on the i-th component carrier, where the third time and frequency resources are in the first The N i time resource units on the i component carriers.
The method of claim 2 wherein:

The first indication information is specifically used to indicate that, from the start time of the first time and frequency resource to the jth time resource unit on the i-th component carrier, and from the first one And the number of data blocks that are co-transmitted in all time resource units on the i-th component carrier, where j is greater than or equal to 1 and less than or equal to N i , and the second time and frequency resource is And from the start time of the first time and frequency resource to the jth time resource unit on the i-th component carrier, and from the first component carrier to the i-1th All time resource units on the component carrier;

The second indication information is specifically used to indicate the number of data blocks that are co-transmitted in all time resource units from the first component carrier to the i-th component carrier, the third time and frequency. The resources are all time resource units from the first of the component carriers to the ith of the component carriers.
The method of claim 2 wherein:

The first indication information is specifically used to indicate that, from the start time of the first time and frequency resource to the jth time resource unit on the i-th component carrier, and from the first one And the number of data blocks that are co-transmitted in all time resource units on the i-th component carrier, where j is greater than or equal to 1 and less than or equal to N i , and the second time and frequency resource is And from the start time of the first time and frequency resource to the jth time resource unit on the i-th component carrier, and from the first component carrier to the i-1th All time resource units on the component carrier;

The second indication information is specifically used to indicate the number of data blocks that are co-transmitted in all time resource units on the M component carriers, where the third time and frequency resources are in the M component carriers. All time resource units on.
The method of claim 2 wherein:

The first indication information is specifically used to indicate the number of the data blocks transmitted from the first component carrier to the ith component carrier in the jth time resource unit, where j is greater than or equal to 1 and less than or equal to N 1 , and the second time and frequency resource is from the first of the component carriers to the ith of the component carriers in the jth time resource unit;

The second indication information is specifically used to indicate the number of the data blocks transmitted on the M component carriers in the jth time resource unit, where the third time and frequency resource is in the jth The M component carriers in the time resource unit;

The length of the time resource unit is based on the length of the time resource unit of the first component carrier.
The method of claim 2 wherein:

The first indication information is specifically used to indicate, in the jth time resource unit, from the first component carrier to the i th component carrier, and from the first time resource unit to a number of all the data blocks transmitted on the M component carriers in the j-1th time resource unit, where j is greater than or equal to 1 and less than or equal to N 1 , and the second time and frequency resource is And from the first of the component carriers to the ith of the component carriers in the jth time resource unit, and from the first time resource unit to the j-1th time resource unit The M component carriers;

The second indication information is specifically used to indicate the number of the data blocks transmitted on the M component carriers from the first time resource unit to the jth time resource unit, where The three time and frequency resources are within the M component carriers from the first time resource unit to the jth time resource unit;

The length of the time resource unit is based on the length of the time resource unit of the first component carrier.
The method of claim 2 wherein:

The first indication information is specifically used to indicate, in the jth time resource unit, from the first component carrier to the i th component carrier, and from the first time resource unit to a number of all the data blocks transmitted on the M component carriers in the j-1th time resource unit, where j is greater than or equal to 1 and less than or equal to N 1 , and the second time and frequency resource is And from the first of the component carriers to the ith of the component carriers in the jth time resource unit, and from the first time resource unit to the j-1th time resource unit The M component carriers;

The second indication information is specifically used to indicate the number of data blocks that are co-transmitted in all time resource units on the M component carriers, where the third time and frequency resources are in the M component carriers. All time resource units on;

The length of the time resource unit is based on the length of the time resource unit of the first component carrier.
A method according to any one of claims 1 to 5, wherein

In a case where the subcarrier spacing included in each of the component carriers is different, the length of the time resource unit is based on the length of the time resource unit of the first component carrier.
The method according to any one of claims 1 to 9, wherein the base station transmits a plurality of downlink control information to the terminal in the first time and frequency resource, and is scheduled by the plurality of downlink control information. After the downlink data, the method further includes:

The base station receives the uplink control information sent by the terminal, where the uplink control information includes Z feedback information, and each of the feedback information is used to indicate the receiving status of the data block, including an acknowledgement ACK, a non-acknowledgement NACK, and/or Or discontinuous transmission of DTX.
An indication method, comprising:

The terminal receives, in the first time and the frequency resource, multiple downlink control information sent by the base station, and multiple downlink data scheduled by the multiple downlink control information;

Each of the downlink control information includes first indication information and second indication information, where the first indication information is used to indicate that the base station sends the downlink data to the terminal in a second time and frequency resource. The number of data blocks, the second indication information is used to indicate the data in the downlink data that is sent by the base station to the terminal in a third time and frequency resource. The number of blocks, the data block being a combination of any one or more of a transport block TB, a code block group CBG, and a code block CB.
The method according to claim 11, wherein the first time and frequency resources comprise M component carriers, and the i i of the component carriers have N i time resource units, and the M is greater than or equal to An integer of 1, the N i is an integer greater than or equal to 1, the i is an integer greater than or equal to 1 and less than or equal to M, and the time resource unit includes a time slot, a mini slot, a subframe, a frame, a symbol A combination of one or more of the first time and frequency resources including the second time and frequency resource and the third time and frequency resource.
The method according to claim 12, wherein the terminal receives, in the first time and the frequency resource, a plurality of downlink control information sent by the base station, and multiple downlink data scheduled by the multiple downlink control information. Thereafter, the method further includes:

Determining, by the terminal, the number Z of feedback information according to one or more pieces of the second indication information received in the first time and frequency resource, where each of the feedback information is used to indicate the data block Receiving conditions, including acknowledgment ACK, non-acknowledgement NACK, and/or discontinuous transmission DTX;

Determining, by the terminal, the location of the Z pieces of the feedback information in the uplink control information according to the one or more pieces of the first indication information received in the first time and frequency resource;

The terminal sends uplink control information to the base station, where the uplink control information includes Z pieces of the feedback information.
A base station, comprising:

a transceiver, configured to send, to the terminal, multiple downlink control information, and multiple downlink data scheduled by the multiple downlink control information, in the first time and the frequency resource;

Each of the downlink control information includes first indication information and second indication information, where the first indication information is used to indicate that the base station sends the downlink data to the terminal in a second time and frequency resource. The number of data blocks, the second indication information is used to indicate the number of the data blocks in the downlink data sent by the base station to the terminal in a third time and frequency resource, where the data block is a transmission A combination of any one or more of a block TB, a code block group CBG, and a code block CB.
The base station according to claim 14, wherein said first time and frequency resource comprises M component carriers and all time resource units on said M component carriers, wherein said component is at said ith There are N i time resource units on the carrier, the M is an integer greater than or equal to 1, the N i is an integer greater than or equal to 1, and the i is an integer greater than or equal to 1 and less than or equal to M, the time resource unit A combination of one or more of a time slot, a mini-slot, a sub-frame, a frame, and a symbol, the first time and frequency resource including the second time and frequency resource and the third time and frequency resource .
The base station according to claim 15, wherein

The first indication information is specifically used to indicate, on the i-th component carrier, the data block that is transmitted from the start time of the first time and frequency resource to the jth time resource unit. a number, the j is greater than or equal to 1 and less than or equal to N i , and the second time and frequency resource is from the start time to the jth of the first time and frequency resource on the i th the component carrier Time resource unit

The second indication information is specifically used to indicate the number of the data blocks that are transmitted in the N i time resource units on the i-th component carrier, where the third time and frequency resources are in the first The N i time resource units on the i component carriers.
The base station according to claim 15, wherein

The first indication information is specifically used to indicate that, from the start time of the first time and frequency resource to the jth time resource unit on the i-th component carrier, and from the first one And the number of data blocks that are co-transmitted in all time resource units on the i-th component carrier, where j is greater than or equal to 1 and less than or equal to N i , and the second time and frequency resource is And from the start time of the first time and frequency resource to the jth time resource unit on the i-th component carrier, and from the first component carrier to the i-1th All time resource units on the component carrier;

The second indication information is specifically used to indicate the number of data blocks that are co-transmitted in all time resource units from the first component carrier to the i-th component carrier, the third time and frequency. The resources are all time resource units from the first of the component carriers to the ith of the component carriers.
The base station according to claim 15, wherein

The first indication information is specifically used to indicate that, from the start time of the first time and frequency resource to the jth time resource unit on the i-th component carrier, and from the first one And the number of data blocks that are co-transmitted in all time resource units on the i-th component carrier, where j is greater than or equal to 1 and less than or equal to N i , and the second time and frequency resource is And from the start time of the first time and frequency resource to the jth time resource unit on the i-th component carrier, and from the first component carrier to the i-1th All time resource units on the component carrier;

The second indication information is specifically used to indicate the number of data blocks that are co-transmitted in all time resource units on the M component carriers, where the third time and frequency resources are in the M component carriers. All time resource units on.
The base station according to claim 15, wherein

The first indication information is specifically used to indicate the number of the data blocks transmitted from the first component carrier to the ith component carrier in the jth time resource unit, where j is greater than or equal to 1 and less than or equal to N 1 , and the second time and frequency resource is from the first of the component carriers to the ith of the component carriers in the jth time resource unit;

The second indication information is specifically used to indicate the number of the data blocks transmitted on the M component carriers in the jth time resource unit, where the third time and frequency resource is in the jth The M component carriers in the time resource unit;

The length of the time resource unit is based on the length of the time resource unit of the first component carrier.
The base station according to claim 15, wherein

The first indication information is specifically used to indicate, in the jth time resource unit, from the first component carrier to the i th component carrier, and from the first time resource unit to a number of all the data blocks transmitted on the M component carriers in the j-1th time resource unit, where j is greater than or equal to 1 and less than or equal to N 1 , and the second time and frequency resource is And from the first of the component carriers to the ith of the component carriers in the jth time resource unit, and from the first time resource unit to the j-1th time resource unit The M component carriers;

The second indication information is specifically used to indicate the number of the data blocks transmitted on the M component carriers from the first time resource unit to the jth time resource unit, where The three time and frequency resources are within the M component carriers from the first time resource unit to the jth time resource unit;

The length of the time resource unit is based on the length of the time resource unit of the first component carrier.
The base station according to claim 15, wherein

The first indication information is specifically used to indicate, in the jth time resource unit, from the first component carrier to the i th component carrier, and from the first time resource unit to a number of all the data blocks transmitted on the M component carriers in the j-1th time resource unit, where j is greater than or equal to 1 and less than or equal to N 1 , and the second time and frequency resource is And from the first of the component carriers to the ith of the component carriers in the jth time resource unit, and from the first time resource unit to the j-1th time resource unit The M component carriers;

The second indication information is specifically used to indicate the number of data blocks that are co-transmitted in all time resource units on the M component carriers, where the third time and frequency resources are in the M component carriers. All time resource units on;

The length of the time resource unit is based on the length of the time resource unit of the first component carrier.
A base station according to any of claims 14-18, characterized in that

In a case where the subcarrier spacing included in each of the component carriers is different, the length of the time resource unit is based on the length of the time resource unit of the first component carrier.
A base station according to any of claims 14-22, characterized in that

The transceiver is further configured to receive uplink control information sent by the terminal, where the uplink control information includes Z feedback information, where each of the feedback information is used to indicate a status of receiving the data block, including confirming an ACK, Non-confirmed NACK and/or discontinuous transmission DTX.
A terminal, comprising:

a transceiver, configured to receive, in a first time and a frequency resource, multiple downlink control information sent by the base station, and multiple downlink data scheduled by the multiple downlink control information;

Each of the downlink control information includes first indication information and second indication information, where the first indication information is used to indicate that the base station sends the downlink data to the terminal in a second time and frequency resource. The number of data blocks, the second indication information is used to indicate the number of the data blocks in the downlink data sent by the base station to the terminal in a third time and frequency resource, where the data block is a transmission A combination of any one or more of a block TB, a code block group CBG, and a code block CB.
The terminal according to claim 24, wherein the first time and frequency resource comprises M component carriers, and there are N i time resource units on the i-th component carrier, where the M is greater than or equal to An integer of 1, the N i is an integer greater than or equal to 1, the i is an integer greater than or equal to 1 and less than or equal to M, and the time resource unit includes a time slot, a mini slot, a subframe, a frame, a symbol A combination of one or more of the first time and frequency resources including the second time and frequency resource and the third time and frequency resource.
The terminal according to claim 25, characterized in that

The transceiver is further configured to determine, according to one or more pieces of the second indication information received in the first time and frequency resource, a number Z of feedback information, where the feedback information is used to indicate The receiving condition of the data block includes an acknowledgement ACK, a non-acknowledgement NACK, and/or a discontinuous transmission DTX;

Determining, by the terminal, the location of the Z pieces of the feedback information in the uplink control information according to the one or more pieces of the first indication information received in the first time and frequency resource;

The terminal sends uplink control information to the base station, where the uplink control information includes Z pieces of the feedback information.