WO2022061548A1

WO2022061548A1 - Method for radio communication, terminal device, and network device

Info

Publication number: WO2022061548A1
Application number: PCT/CN2020/116922
Authority: WO
Inventors: 吴作敏
Original assignee: Oppo广东移动通信有限公司
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2022-03-31
Also published as: CN115943594A

Abstract

A method for radio communication, a terminal device, and a network device. The method comprises: a terminal devices receives first downlink control information (DCI) transmitted by a network device, the first DCI being used for scheduling to transmit a first transmission block (TB) via a first hybrid automatic repeat request (HARQ) process, where the first HARQ process corresponds to a first HARQ process number, the first DCI corresponds to a first DCI format, and the maximum HARQ process number indicated in a HARQ process number indication field in the first DCI format is a first value; and the terminal device transmits the first TB via the first HARQ process.

Description

Method, terminal device and network device for wireless communication

technical field

The embodiments of the present application relate to the field of communications, and in particular, to a wireless communication method, a terminal device, and a network device.

Background technique

The increase in the number of HARQ processes is a terminal device capability. The number of Hybrid Automatic Repeat reQuest (HARQ) processes supported by some terminal devices can be greater than 16, and the number of HARQ processes supported by some terminal devices cannot be greater than 16, or , not all terminal devices support more than 16 HARQ processes. In this case, how to perform data scheduling to ensure that the network device and the terminal device have the same understanding of the HARQ process number for scheduling data transmission is an urgent problem to be solved.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a wireless communication method, a terminal device, and a network device. When the network device schedules data transmission through the first DCI format, it is beneficial to ensure the HARQ process number corresponding to the scheduled data transmission by the network device and the terminal device. consistent understanding.

In a first aspect, a method for wireless communication is provided, comprising: a terminal device receiving first downlink control information DCI sent by a network device, where the first DCI is used to schedule transmission of the first downlink control information through a first hybrid automatic repeat request (HARQ) process. A transport block TB, wherein the first HARQ process corresponds to the first HARQ process number, the first DCI corresponds to the first DCI format, and the HARQ process number in the first DCI format indicates the maximum HARQ process number indicated by the field is the first value; the terminal device transmits the first TB through the first HARQ process.

In a second aspect, a method for wireless communication is provided, including: a network device sending first downlink control information DCI to a terminal device, where the first DCI is used to schedule transmission of the first HARQ process through the first hybrid automatic repeat request (HARQ) process. Transport block TB, wherein the first HARQ process corresponds to the first HARQ process number, the first DCI corresponds to the first DCI format, and the maximum HARQ process number indicated by the HARQ process number indication field in the first DCI format is first value.

In a third aspect, a terminal device is provided for executing the method in the first aspect or any possible implementation manner of the first aspect. Specifically, the terminal device includes a unit for executing the method in the first aspect or any possible implementation manner of the first aspect.

In a fourth aspect, a network device is provided for executing the method in the second aspect or any possible implementation manner of the second aspect. Specifically, the network device includes a unit for executing the method in the second aspect or any possible implementation manner of the second aspect.

In a fifth aspect, a terminal device is provided, and the terminal device includes: a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the method in the above-mentioned first aspect or each implementation manner thereof.

In a sixth aspect, a network device is provided, and the network device includes: a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the second aspect or each of its implementations.

In a seventh aspect, a chip is provided for implementing any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof.

Specifically, the chip includes: a processor for invoking and running a computer program from a memory, so that a device on which the chip is installed executes any one of the above-mentioned first to second aspects or each of its implementations method.

In an eighth aspect, a computer-readable storage medium is provided for storing a computer program, the computer program causing a computer to execute the method in any one of the above-mentioned first aspect to the second aspect or each of its implementations.

In a ninth aspect, a computer program product is provided, comprising computer program instructions, the computer program instructions causing a computer to execute the method in any one of the above-mentioned first to second aspects or the respective implementations thereof.

In a tenth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method in any one of the above-mentioned first to second aspects or the respective implementations thereof.

Based on the above technical solutions, the network device may schedule the terminal device to transmit the first transport block TB through the first DCI format, and the terminal device may determine the first transmission block TB in a corresponding manner when the first DCI format supports different numbers of HARQ processes. The target HARQ process number used for data transmission scheduled in the DCI format, so as to ensure consistent understanding of the scheduled HARQ process number between the terminal device and the network device.

Description of drawings

1A-1C are schematic diagrams of an application scenario provided by an embodiment of the present application.

FIG. 2 is a schematic diagram of a relationship between the number of HARQ processes and RTT.

FIG. 3 is a schematic diagram of a wireless communication method provided by an embodiment of the present application.

FIG. 4 is a schematic block diagram of a terminal device provided by an embodiment of the present application.

FIG. 5 is a schematic block diagram of a network device provided by an embodiment of the present application.

FIG. 6 is a schematic block diagram of a communication device provided by another embodiment of the present application.

FIG. 7 is a schematic block diagram of a chip provided by an embodiment of the present application.

FIG. 8 is a schematic block diagram of a communication system provided by an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. With regard to the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a wideband Code Division Multiple Access (CDMA) system (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), Long Term Evolution (Long Term Evolution, LTE) system, Advanced Long Term Evolution (Advanced long term evolution, LTE-A) system , New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) unlicensed spectrum, NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.

Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but also support, for example, Device to Device (Device to Device, D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, etc. , the embodiments of the present application can also be applied to these communication systems.

Optionally, the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.

Optionally, the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered unshared spectrum.

Optionally, the communication system in the embodiment of the present application can be applied to the FR1 frequency band (corresponding to the frequency band range of 410MHz to 7.125GHz), can also be applied to the FR2 frequency band (corresponding to the frequency band range of 24.25GHz to 52.6GHz), and can also be applied to a new frequency band. The frequency band corresponds to, for example, a high frequency frequency band in the frequency band range of 52.6 GHz to 71 GHz.

Optionally, the embodiments of the present application may be applied to a non-terrestrial communication network (Non-Terrestrial Networks, NTN) system, and may also be applied to a terrestrial communication network (Terrestrial Networks, TN) system.

The embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, where the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

The terminal device may be a station (STATION, ST) in the WLAN, and may be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a Wireless Local Loop (WLL) station, a personal digital assistant (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, next-generation communication systems such as end devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.

In this embodiment of the present application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites) superior).

In this embodiment of the present application, the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, and an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc. The terminal equipment involved in the embodiments of this application may also be referred to as terminal, user equipment (UE), access terminal equipment, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, and remote station , remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE proxy or UE device, etc. Terminal devices can also be stationary or mobile.

As an example and not a limitation, in this embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets, smart jewelry, etc. for physical sign monitoring.

In this embodiment of the present application, the network device may be a device for communicating with a mobile device, and the network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA , it can also be a base station (NodeB, NB) in WCDMA, it can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or in-vehicle equipment, wearable devices and NR networks The network equipment (gNB) in the PLMN network in the future evolution or the network equipment in the NTN network, etc.

As an example and not a limitation, in this embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a High Elliptical Orbit (HEO) ) satellite etc. Optionally, the network device may also be a base station set in a location such as land or water.

In this embodiment of the present application, a network device may provide services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device ( For example, the cell corresponding to the base station), the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell). Pico cell), Femto cell (Femto cell), etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

Exemplarily, FIG. 1A is a schematic structural diagram of a communication system provided by an embodiment of the present application. As shown in FIG. 1A , the communication system 100 may include a network device 110 , and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal). The network device 110 may provide communication coverage for a particular geographic area, and may communicate with terminal devices located within the coverage area.

FIG. 1A exemplarily shows one network device and two terminal devices. Optionally, the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The present application The embodiment does not limit this.

Exemplarily, FIG. 1B is a schematic structural diagram of another communication system provided by an embodiment of the present application. Referring to FIG. 1B , a terminal device 1101 and a satellite 1102 are included, and wireless communication can be performed between the terminal device 1101 and the satellite 1102 . The network formed between the terminal device 1101 and the satellite 1102 may also be referred to as NTN. In the architecture of the communication system shown in FIG. 1B , the satellite 1102 can function as a base station, and the terminal device 1101 and the satellite 1102 can communicate directly. Under the system architecture, satellite 1102 may be referred to as a network device. Optionally, the communication system may include multiple network devices 1102, and the coverage of each network device 1102 may include other numbers of terminal devices, which are not limited in this embodiment of the present application.

Exemplarily, FIG. 1C is a schematic structural diagram of another communication system provided by an embodiment of the present application. Please refer to FIG. 1C , including a terminal device 1201 , a satellite 1202 and a base station 1203 , the terminal device 1201 and the satellite 1202 can communicate wirelessly, and the satellite 1202 and the base station 1203 can communicate. The network formed between the terminal device 1201, the satellite 1202 and the base station 1203 may also be referred to as NTN. In the architecture of the communication system shown in FIG. 1C , the satellite 1202 may not have the function of the base station, and the communication between the terminal device 1201 and the base station 1203 needs to be relayed by the satellite 1202 . Under such a system architecture, the base station 1203 may be referred to as a network device. Optionally, the communication system may include multiple network devices 1203, and the coverage of each network device 1203 may include other numbers of terminal devices, which are not limited in this embodiment of the present application.

It should be noted that FIG. 1A-FIG. 1C merely illustrate the system to which the present application applies. Of course, the methods shown in the embodiments of the present application may also be applied to other systems, such as a 5G communication system, an LTE communication system, etc. , which is not specifically limited in the embodiments of the present application.

Optionally, the wireless communication system shown in FIG. 1A-FIG. 1C may further include other network entities such as a mobility management entity (Mobility Management Entity, MME), an access and mobility management function (Access and Mobility Management Function, AMF). , which is not limited in the embodiments of the present application.

It should be understood that, in the embodiments of the present application, a device having a communication function in the network/system may be referred to as a communication device. Taking the communication system 100 shown in FIG. 1A as an example, the communication device may include a network device 110 and a terminal device 120 with a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here. ; The communication device may also include other devices in the communication system 100, such as other network entities such as a network controller, a mobility management entity, etc., which are not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is only an association relationship to describe the associated objects, indicating that there can be three kinds of relationships, for example, A and/or B, it can mean that A exists alone, A and B exist at the same time, and A and B exist independently B these three cases. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.

It should be understood that the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship. For example, if A indicates B, it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.

In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect corresponding relationship between the two, or may indicate that there is an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc.

In this embodiment of the present application, "predefinition" may be implemented by pre-saving corresponding codes, forms, or other means that can be used to indicate relevant information in devices (for example, including terminal devices and network devices). The implementation method is not limited. For example, predefined may refer to the definition in the protocol.

In the embodiments of the present application, the "protocol" may refer to a standard protocol in the communication field, for example, may include the LTE protocol, the NR protocol, and related protocols applied in future communication systems, which are not limited in this application.

In order to facilitate a better understanding of the embodiments of the present application, the HARQ mechanism and the HARQ-ACK feedback mechanism related to the present application are first described.

HARQ mechanism in NR system

There are two levels of retransmission mechanisms in the NR system: the Hybrid Automatic Repeat reQuest (HARQ) mechanism at the Media Access Control (MAC) layer and the Radio Link Control (RLC) mechanism. Layer's Automatic Repeat ReQuest (ARQ) mechanism. The retransmission of lost or erroneous data is mainly handled by the HARQ mechanism of the MAC layer, supplemented by the retransmission function of the RLC layer. The HARQ mechanism of the MAC layer can provide fast retransmission, and the ARQ mechanism of the RLC layer can provide reliable data transmission.

HARQ uses the Stop-and-Wait Protocol (Stop-and-Wait Protocol) to send data. In the stop-and-wait protocol, after the sender sends a Transport Block (TB) once, it stops and waits for confirmation. In this way, the sender stops and waits for an acknowledgment after each transmission, resulting in low user throughput. Therefore, NR uses multiple parallel HARQ processes. When one HARQ process is waiting for acknowledgment information, the sender can use another HARQ process to continue sending data. These HARQ processes collectively form a HARQ entity, which incorporates a stop-and-wait protocol, allowing data to be transmitted continuously. HARQ is divided into uplink HARQ and downlink HARQ. Uplink HARQ is for uplink data transmission, and downlink HARQ is for downlink data transmission. The two are independent of each other.

In some cases, the terminal device has its own HARQ entity for each serving cell. Each HARQ entity maintains a set of parallel downlink HARQ processes and a set of parallel uplink HARQ processes. As an example, each uplink and downlink carrier supports a maximum of 16 HARQ processes. The network device may indicate the maximum number of HARQ processes to the terminal device through a radio resource control (Radio Resource Control, RRC) signaling semi-static configuration according to the deployment situation of the network device. Optionally, in some embodiments, if the network device does not provide corresponding configuration parameters, the default number of HARQ processes in downlink is 8, and the maximum number of HARQ processes supported by each uplink carrier is always 16. Each HARQ process corresponds to a HARQ process ID (also referred to as a HARQ process ID). For downlink, a broadcast control channel (Broadcast Control CHannel, BCCH) uses a dedicated broadcast HARQ process. For uplink, HARQ ID 0 is used for message 3 (Msg3) transmission in the random process.

In some embodiments, for terminal equipment that does not support downlink space division multiplexing, each downlink HARQ process can only process one TB at the same time; for terminal equipment that supports downlink space division multiplexing, each downlink HARQ process can simultaneously process 1 or 2 TB. Each uplink HARQ process of the terminal device simultaneously processes 1 TB.

HARQ is divided into two categories: synchronous and asynchronous in the time domain, and non-adaptive and adaptive in the frequency domain. Both the NR uplink and downlink use the asynchronous adaptive HARQ mechanism. For asynchronous HARQ, the time interval between the retransmission of the same TB and the last transmission is not fixed. Adaptive HARQ can change the frequency domain resources and MCS used for retransmission.

With reference to FIG. 2 , the relationship between the number of supported HARQ processes and RTT is described by taking downlink transmission as an example. As shown in Figure 2, the maximum number of HARQ processes configured on a terminal device is 16, then if the RTT is small, for example, less than 16ms, the maximum throughput of the terminal device will not be affected. In other words, if the RTT is less than 16ms, the When there is a service to be transmitted, the terminal device can always have a parallel HARQ process for data transmission. Of course, if the RTT is relatively large, for example, much larger than 16ms, then it is possible that all HARQ processes of the terminal device are used for data transmission, and no feedback from the network device is obtained, resulting in the terminal device having services to be transmitted but no HARQ process available. If it is used, it will affect the throughput of data transmission on the terminal device side.

In the NTN system, due to the long communication distance between the terminal equipment and the satellite (or network equipment), the RTT of the signal transmission is very large. In a GEO system, the RTT of signal transmission may be in the order of hundreds of milliseconds, for example, the RTT of signal transmission may be about 600 ms at most. In LEO systems, the RTT of signal transmission can be on the order of tens of milliseconds. Since the RTT of the NTN system is much larger than that of the terrestrial communication system, the HARQ mechanism in the NR system is no longer applicable to the NTN system.

As a solution: configure the HARQ process to disable

The network device may configure disabling for at least one downlink HARQ process of the terminal device. For a downlink HARQ process that is configured to be disabled, the network device can reuse the HARQ process for data transmission without receiving the corresponding HARQ-ACK information fed back by the terminal device for the TB transmitted in the HARQ process. Therefore, the network device can use the disabled HARQ process to schedule multiple data packets for the terminal device, thereby reducing the impact of RTT.

As another solution: increase the number of HARQ processes

To the extent permitted by the capability of the terminal device, the number of HARQ processes configured by the network device for the terminal device may exceed the maximum number of HARQ processes supported by the NR system. For example, the number of HARQ processes configured by the network device for the terminal device may exceed 16. The increase in the number of HARQ processes indicates that the number of data packets that can be transmitted in parallel between the network device and the terminal device increases, thereby reducing the impact of RTT.

In addition, in a high-frequency system, the time slot occupied in the time domain is very short due to the large interval between the supported subcarriers. However, the processing time of the terminal equipment for the scheduled HARQ process does not decrease linearly as the subcarrier spacing increases. Therefore, it is also possible that all HARQ processes of the terminal device are used for data transmission and are being processed, resulting in the situation that the terminal device has services to be transmitted but no HARQ process can be used, which will affect the data transmission on the terminal device side. throughput. It is also possible to increase the number of HARQ processes in this scenario.

The increase in the number of HARQ processes is a terminal device capability. That is, the number of HARQ processes supported by some terminal devices may be greater than 16, and the number of HARQ processes supported by some terminal devices cannot be greater than 16. In other words, not all terminal devices support the number of HARQ processes greater than 16. In this case, how to perform data scheduling to ensure that the network device and the terminal device have the same understanding of the HARQ process number for scheduling data transmission is an urgent problem to be solved. For example, when the terminal device is scheduled by the network device to receive downlink data or transmit uplink data, the terminal device needs to determine the HARQ process corresponding to the downlink data or the uplink data according to the DCI, such as the HARQ process number indication field in the downlink grant or the uplink grant. No. For a terminal device that supports more than 16 HARQ processes, assuming that the maximum number of HARQ processes to be indicated is 32, for example, the HARQ process number needs to be determined according to the 5-bit indication information. Scheduling of 16 HARQ processes, however for the fallback DCI format, the HARQ process number indication field is fixed to 4 bits. Since the fallback DCI format is also used for downlink data reception scheduling and uplink data transmission scheduling in the initial access phase, in the initial access phase, the maximum number of HARQ processes that can be scheduled by the terminal device is not greater than 16. Therefore, it is necessary to ensure that the network device and the terminal device have the same understanding of the HARQ process number for scheduling data transmission under different circumstances.

FIG. 3 is a schematic flowchart of a method 300 for wireless communication according to an embodiment of the present application. As shown in FIG. 3 , the method 300 may include at least some of the following contents:

S310, the network device sends the first downlink control information DCI to the terminal device, where the first DCI corresponds to the first DCI format;

Correspondingly, the terminal device receives the first DCI.

The first DCI is used to schedule transmission of the first transport block TB through the first HARQ process, wherein the first HARQ process corresponds to the first HARQ process number, the first DCI corresponds to the first DCI format, and the The maximum HARQ process number indicated by the HARQ process number indication field in the first DCI format is the first value.

S320, the terminal device transmits the first TB through the first HARQ process.

In some embodiments, the first TB is a TB in uplink transmission, that is, the first DCI is used to schedule the terminal device to send the first TB through the first HARQ process, or in other words, the first DCI is used to schedule the terminal device to send a first physical uplink shared channel (Physical uplink shared channel, PUSCH) through the first HARQ process, where the first PUSCH carries the first TB. In this case, the first HARQ process is an uplink HARQ process, which is recorded as the first uplink HARQ process. Then in S320, the terminal device may send the first TB through the first uplink HARQ process.

In other embodiments, the first TB is a TB in downlink transmission, that is, the first DCI is used to schedule the terminal device to receive the first TB through the first HARQ process, or in other words, the first DCI A DCI is used to schedule the terminal device to receive a first physical downlink shared channel (Physical downlink shared channel, PDSCH) through the first HARQ process, where the first PDSCH carries the first TB. In this case, the first HARQ process is a downlink HARQ process, which is recorded as the first downlink HARQ process. Then in S320, the terminal device may receive the first TB through the first downlink HARQ process.

In this embodiment of the present application, the first DCI format may include a HARQ process number indication field, which is used to determine the HARQ process number used for scheduled data transmission.

In some embodiments, the HARQ process number indication field is 4 bits, and the HARQ process number used for indication ranges from 0 to 15. In other words, the maximum HARQ process number that can be indicated is 15, that is, the first value is 15.

In other embodiments, the number of bits included in the HARQ process number indication field may also be other values, which are used for other HARQ process number ranges, which the present application is not limited to. Hereinafter, the first numerical value is 15 as an example for description, but the present application is not limited to this.

In this embodiment of the present application, the terminal device may support a number of HARQ processes greater than the first value, for example, the number of HARQ processes that the terminal device may support is 32.

It should be understood that the number of downlink HARQ processes and the number of uplink HARQ processes of the terminal device may be the same or different, which is not limited in this application. For example, the number of downlink HARQ processes of the terminal device is configured to be 32, and the number of uplink HARQ processes is configured to be 16. For another example, the number of downlink HARQ processes and the number of uplink HARQ processes of the terminal device are both configured to be 32.

Optionally, in some embodiments, the terminal device may report the number of HARQ processes it supports to the network device.

As an embodiment, the terminal device reports downlink capability information of the terminal device to the network device, where the downlink capability information is used to indicate that the number of downlink HARQ processes supported by the terminal device is greater than a specific value, or, the The maximum HARQ process number that the terminal device supports for scheduled downlink transmission is greater than the first value, where the specific value is equal to the first value plus one.

In this case, if the first TB is a TB in downlink transmission, it can be considered that the range of HARQ process numbers corresponding to the number of downlink HARQ processes configured on the terminal device is the range of the first HARQ process number, or, the The maximum HARQ process number supported by the terminal device for scheduled downlink transmission is greater than the first value, where the first HARQ process number range includes HARQ process numbers greater than the first value.

As another embodiment, the terminal device reports uplink capability information of the terminal device to the network device, where the uplink capability information is used to indicate that the number of uplink HARQ processes supported by the terminal device is greater than a specific value, or the The maximum HARQ process number that the terminal device supports for scheduled uplink transmission is greater than the first value, where the specific value is equal to the first value plus one.

In this case, if the first TB is a TB in uplink transmission, it can be considered that the range of HARQ process numbers corresponding to the number of uplink HARQ processes configured on the terminal device is the range of the first HARQ process numbers, or, the The maximum HARQ process number supported by the terminal device for scheduled uplink transmission is greater than the first value, where the first HARQ process number range includes HARQ process numbers greater than the first value.

Optionally, in some embodiments, the first DCI format includes a fallback DCI format.

It should be understood that the present application does not limit the specific DCI format included in the fallback DCI format. As an example, the first TB is a TB in downlink transmission, and the first DCI format includes DCI format 1_0; the first TB is a TB in uplink transmission, and the first DCI format includes DCI format 0_0.

Optionally, in some embodiments, the size of the HARQ process number indication field in the fallback DCI format is a fixed value. For example, the HARQ process number indication field in the fallback DCI format is 4 bits, and the range of the HARQ process number used for indication is 0 to 15. In other words, the maximum HARQ process number that can be indicated is 15, that is, the first value is 15.

In some cases, denoted as Case 1, the first DCI format supports data transmission scheduling with a HARQ process number not greater than the first value, or in other words, the first DCI format supports a HARQ process number of the first value + 1 (eg, 16) Data transmission scheduling, or in other words, the first DCI format does not support data transmission scheduling with a HARQ process number greater than the first value. Then, the first HARQ process ID corresponding to the first HARQ process can be determined according to the HARQ process ID indication field in the first DCI, and the value of the first HARQ process ID is at most the first value.

In other cases, referred to as Case 2, the first DCI format supports data transmission scheduling with different HARQ process numbers under different conditions, or in other words, the first DCI format supports different HARQ process number ranges under different conditions.

For example, when the first condition is met, the first DCI format supports data transmission scheduling with a HARQ process number not greater than the first value, and when the second condition is met, the first DCI format supports data transmission scheduling with a HARQ process number greater than the first value .

In still other cases, denoted as Case 3, the first DCI format supports data transmission scheduling with a HARQ process number greater than the first value, or in other words, the first DCI format supports a HARQ process number greater than the first value + 1 (for example, 16) Data transfer scheduling.

For the above cases 2 and 3, since both the first DCI format needs to indicate the data transmission scheduling with the HARQ process number greater than the first value, as an implementation manner, the bits in the HARQ process number indication field in the first DCI format can be increased. number in such a way that it can support data transmission scheduling with a HARQ process number greater than the first value.

As another implementation manner, without changing the number of bits of the HARQ process number indication field in the first DCI, the maximum value of the HARQ process number indicated by the HARQ process number indication field is the first value, and the first value corresponding to the first HARQ process A HARQ process number may be greater than the first value. To indicate a HARQ process number greater than the first value, additional information is required to assist in determining the target HARQ process number. For example, the first HARQ process number corresponding to the first HARQ process is determined according to the first information and the HARQ process number indication field in the first DCI.

It should be understood that, in this embodiment of the present application, the first information may be any auxiliary information, for example, the first information may be existing information, and different values are assigned to the existing information to indicate different The HARQ process number range, or the interpretation of the existing information can be modified to indicate different HARQ process number ranges, or the final HARQ process number can also be determined through the newly added information in conjunction with the value of the HARQ process number indication field, etc. , which is not limited in this application.

As an example and not a limitation, the first information includes at least one of the following:

The wireless network temporary identifier (Radio Network Temporary Identity, RNTI) corresponding to the first DCI;

the search space (search space) corresponding to the first DCI;

The control channel element (Control Channel Element, CCE) index range corresponding to the first DCI;

time domain resources corresponding to the first HARQ process scheduled by the first DCI;

the first information field in the first DCI except the HARQ process number indication field;

The demodulation reference signal DMRS sequence corresponding to the first HARQ process scheduled by the first DCI.

Optionally, the CCE index range corresponding to the first DCI may include at least one CCE index value.

It should be understood that, in this embodiment of the present application, the situation of the HARQ process supported by the first DCI format is known to both the network device and the terminal device, so for the case 1, the terminal device only needs to obtain the information from the first DCI format. The HARQ process number indication field in the format only needs to know the HARQ process number corresponding to the data transmission scheduled by the network device. For cases 2 and 3, the terminal device can use the first information and the HARQ process number indication field according to the Determine the target HARQ process number scheduled by the network.

Hereinafter, how to use the first information to assist in indicating the HARQ process number greater than the first value is specifically described.

It should be noted that, in this embodiment of the present application, different values or different value ranges of the first information may be used to indicate different HARQ process ranges, or, different values or different value ranges of the first information may be considered as It is used as different auxiliary bit information to determine the final HARQ process number.

For example, two HARQ process ranges supported by the first DCI format are indicated by two value ranges of the first information, or the two value ranges may be considered as 1-bit auxiliary information for determining the target HARQ process number. For another example, the four value ranges of the first information indicate the four HARQ process ranges supported by the first DCI format, or the four value ranges may be considered as 2-bit auxiliary information for determining the target HARQ process number.

It should also be understood that when different values or different value ranges of the first information are used as auxiliary bit information to determine the final HARQ process number, it can be used as at least one bit in the high order, or at least one bit in the low order, or at least one in the middle. bits, etc., which are not limited in this application.

In the following, the first information assists in indicating two different HARQ process ranges as an example for description. When more types of HARQ process ranges need to be indicated, it is only necessary to configure more values or more value ranges. The application is not limited to this.

Mode 1: Indicate different HARQ process ID ranges through different RNTIs

As an embodiment, the first RNTI is used to indicate the first range of HARQ process numbers, and the second RNTI is used to indicate the second range of HARQ process numbers, wherein the maximum value of the HARQ process numbers included in the first HARQ process range is greater than the th A value, the maximum value of the HARQ process IDs included in the second HARQ process ID range is equal to the first value.

That is, the first DCI format corresponding to the first RNTI supports data transmission scheduling with a HARQ process number greater than the first value, and the first DCI format corresponding to the second RNTI supports data transmission scheduling with a HARQ process number less than or equal to the first value.

For example, the first HARQ process number ranges from 16 to 31, or 0 to 31, and the second HARQ process number ranges from 0 to 15.

In some embodiments, if the RNTI corresponding to the first DCI is the first RNTI, it means that the first HARQ process number is greater than the first value; or, if the RNTI corresponding to the first DCI is the second RNTI RNTI, it means that the first HARQ process number is less than or equal to the first value. In this case, it can be considered that the first RNTI and the second RNTI are used as auxiliary bits to determine the target HARQ process number. For example, the first RNTI corresponds to high-order bit 1, and the second RNTI corresponds to high-order bit 0. For example, the first HARQ process number ranges from 16 to 31, and the second HARQ process number ranges from 0 to 15.

For example, if the terminal device receives the first DCI corresponding to the first RNTI, the terminal device determines the HARQ corresponding to the first DCI according to the HARQ process number indication field in the first DCI and setting 1 as the high bit of the HARQ process number Process ID. Or, if the terminal device receives the first DCI corresponding to the second RNTI, the terminal device determines the HARQ process corresponding to the first DCI according to the HARQ process number indication field in the first DCI and setting 0 as the high-order bit of the HARQ process number No.

In other embodiments, if the RNTI corresponding to the first DCI is the first RNTI, it means that the range of HARQ process numbers to which the first HARQ process number belongs is the range of the first HARQ process numbers; The RNTI corresponding to one DCI is the second RNTI, which means that the HARQ process number range to which the first HARQ process number belongs is the second HARQ process number range.

In this case, if the first HARQ process number is greater than the first value, or the first HARQ process number falls within the range of the first HARQ process number, additional auxiliary information and the HARQ process number indication field in the first DCI are required for joint determination . For example, the target HARQ process number is assisted in determining the target HARQ process number according to the first information field other than the HARQ process number indication field in the first DCI. For example, the first HARQ process number ranges from 0 to 31, and the second HARQ process number ranges from 0 to 15.

As an embodiment, the first HARQ process number is determined according to some or all bits in the first information field and all bits in the HARQ process number indication field in the first DCI.

It should be understood that the number of bits used when determining the first HARQ process number by using the first information field in the first DCI can be determined according to the range of the HARQ process number that needs to be indicated. For example, if the maximum HARQ process number that needs to be indicated is 31 , then 5 bits of indication information are required, and if the HARQ process ID indication field includes 4 bits, only an additional 1 bit is needed to indicate.

For example, the first information field may include a redundancy version (Redundancy version, RV) field, and the RV field includes 2 bits for indicating a corresponding RV for transmission, for example, for indicating one of 0, 1, 2, and 3. When the first DCI format schedules data transmission with a HARQ process number greater than the first value, 1 bit of the 2 bits in the RV field in the first DCI format is used to indicate the corresponding RV for transmission, for example, used to indicate 0 and 3 The other 1 bit is used to assist in indicating the HARQ process number, for example, it is used to indicate the highest or lowest bit in the target HARQ process number.

As another example, if the terminal device receives the first DCI corresponding to the first RNTI, the terminal device determines that the first DCI corresponds to the HARQ process number indication field in the first DCI and some or all bits in the first information field. The HARQ process ID. Or, if the terminal device receives the first DCI corresponding to the second RNTI, the terminal device determines the HARQ process number corresponding to the first DCI according to the HARQ process number indication field in the first DCI.

Optionally, the first RNTI is an RNTI configured by the network device for the terminal device. For example, the first RNTI is an RNTI specific to the terminal device configured by the network device for the terminal device, and the first RNTI is used to support data transmission scheduling in which the HARQ process number is greater than the first value.

Optionally, the second RNTI is an RNTI configured by the network device for the terminal device. For example, the second RNTI is a terminal device-specific RNTI configured by the network device for the terminal device, and the second RNTI is used to support data transmission scheduling in which the HARQ process number is less than or equal to the first value.

As an example but not a limitation, the first TB is a TB in uplink transmission, and the first RNTI includes at least one of the following: a preconfigured scheduling radio network temporary identifier (Configured Scheduling RNTI, CS-RNTI);

Modulation and Coding Scheme Cell Radio Network Temporary Identity (MCS-C-RNTI);

Semi-Persistent Channel State Information Radio Network Temporary Identifier (Semi-Persistent Channel State Information Radio Network Temporary Identity, SP-CSI-RNTI).

The second RNTI includes at least one of the following:

Temporary Cell RNTI (Temporary Cell RNTI, TC-RNTI), cell RNTI (Cell RNTI, C-RNTI).

As an example but not a limitation, the first TB is a TB in downlink transmission, the first RNTI includes at least one of the following: CS-RNTI, MCS-C-RNTI, and the second RNTI includes the following At least one: TC-RNTI, C-RNTI.

Optionally, in some embodiments, for the first DCI format scrambled using the C-RNTI, data transmission scheduling in which the HARQ process number is greater than the first value is supported when certain conditions are met. Optionally, the specific condition includes at least one of the following: the first DCI format corresponds to a specific search space, for example, a search space dedicated to the terminal device, and the first DCI format corresponds to a specific CCE index.

Mode 2: Indicate different HARQ process number ranges through different search spaces

As an embodiment, the first search space is used to indicate the first range of HARQ process numbers, and the second search space is used to indicate the second range of HARQ process numbers, wherein the first HARQ process range includes the maximum value of the HARQ process numbers greater than the first value, the maximum value of the HARQ process numbers included in the second HARQ process number range is equal to the first value.

That is, the first DCI format corresponding to the first search space supports data transmission scheduling with HARQ process numbers greater than the first value, and the first DCI format corresponding to the second search space supports data transmission scheduling with HARQ process numbers less than or equal to the first value.

In some embodiments, if the search space corresponding to the first DCI is the first search space, it means that the first HARQ process number is greater than the first value; or, if the search space corresponding to the first DCI is the first search space is the second search space, indicating that the first HARQ process number is less than or equal to the first value. In this case, it can be considered that the first search space and the second search space are used as auxiliary bits to determine the target HARQ process number. For example, the first search space corresponds to high-order bit 1, and the second search space corresponds to high-order bit 0. For example, the first HARQ process number ranges from 16 to 31, and the second HARQ process number ranges from 0 to 15.

For example, if the terminal device receives the first DCI in the first search space, the terminal device determines the corresponding HARQ process number according to the HARQ process number indication field in the first DCI and setting 1 as the high bit of the HARQ process number. HARQ process ID. Or, if the terminal device receives the first DCI in the second search space, the terminal device determines the HARQ corresponding to the first DCI according to the HARQ process number indication field in the first DCI and setting 0 as the high-order bit of the HARQ process number Process ID.

In other embodiments, if the search space corresponding to the first DCI is the first search space, it means that the range of HARQ process numbers to which the first HARQ process number belongs is the range of the first HARQ process numbers; or, if all If the search space corresponding to the first DCI is the second search space, it means that the HARQ process number range to which the first HARQ process number belongs is the second HARQ process number range. In this case, if the first HARQ process number is greater than the first value, additional auxiliary information and the HARQ process number indication field in the first DCI are required for joint indication.

Optionally, the first search space is a search space configured by the network device for the terminal device. For example, the first search space is a terminal device-specific search space configured by the network device for the terminal device, and the first search space is used to support data transmission scheduling in which the HARQ process number is greater than the first value, or the first HARQ process number Scoped data transfer schedule.

Optionally, the second search space is a search space configured by the network device for the terminal device. For example, the second search space is a terminal device-specific search space configured by the network device for the terminal device, and the second search space is used to support data transmission scheduling in which the HARQ process number is less than or equal to the first value, or the second HARQ Data transfer scheduling for the range of process numbers.

Mode 3: Indicate different HARQ process ID ranges through different CCE index ranges

As an embodiment, the first CCE index range is used to indicate the first HARQ process ID range, and the second CCE index range is used to indicate the second HARQ process ID range, wherein the first HARQ process range includes the HARQ process ID range of The maximum value is greater than the first value, and the maximum value of the HARQ process IDs included in the second HARQ process ID range is equal to the first value.

That is, the first DCI format corresponding to the first CCE index range supports data transmission scheduling with a HARQ process number greater than the first value, and the first DCI format corresponding to the second CCE index range supports data transmission scheduling with a HARQ process number less than or equal to the first value .

In some embodiments, if the CCE index range corresponding to the first DCI is the first CCE index range, it means that the first HARQ process number is greater than the first value; or, if the first DCI corresponding The CCE index range is the second CCE index range, which means that the first HARQ process number is less than or equal to the first value. In this case, it can be considered that the first CCE index range and the second CCE index range are used as auxiliary bits for determining the target HARQ process number. For example, the first CCE index range corresponds to high-order bit 1, and the second CCE index range corresponds to high-order bit 0. For example, the first HARQ process number ranges from 16 to 31, and the second HARQ process number ranges from 0 to 15.

For example, if the first DCI received by the terminal device corresponds to the first CCE index range, the terminal device determines that the first DCI corresponds to the first DCI according to the HARQ process number indication field in the first DCI and setting 1 as the high bit of the HARQ process number. The HARQ process ID. Or, if the first DCI received by the terminal device corresponds to the second CCE index range, the terminal device determines the corresponding HARQ process number according to the HARQ process number indication field in the first DCI and 0 is set as the high bit of the HARQ process number. HARQ process ID.

In other embodiments, if the CCE index range corresponding to the first DCI is the first CCE index range, it means that the HARQ process number range to which the first HARQ process number belongs is the first HARQ process number range; or, If the CCE index range corresponding to the first DCI is the second CCE index range, it indicates that the HARQ process number range to which the first HARQ process number belongs is the second HARQ process number range. In this case, if the first HARQ process number is greater than the first value, additional auxiliary information and the HARQ process number indication field in the first DCI are required for joint indication.

Optionally, the first CCE index range is a CCE index range configured by the network device for the terminal device. For example, the first CCE index range is a data transmission schedule configured by the network device for the terminal device to support a HARQ process number greater than the first value, or a data transmission schedule to support the first HARQ process number range.

Optionally, the second CCE index range is a CCE index range configured by the network device for the terminal device. For example, the second CCE index range is a data transmission schedule configured by the network device for the terminal device to support a HARQ process number less than or equal to the first value, or a data transmission schedule to support the second HARQ process number range.

Mode 4: Indicate different HARQ process number ranges through different DMRSs

As an embodiment, the first DMRS sequence is used to indicate the first range of HARQ process numbers, and the second DMRS sequence is used to indicate the second range of HARQ process numbers, wherein the first HARQ process range includes the maximum value of the HARQ process numbers greater than the first value, the maximum value of the HARQ process numbers included in the second HARQ process number range is equal to the first value.

That is, the first DCI format corresponding to the first DMRS sequence supports data transmission scheduling with HARQ process numbers greater than the first value, and the first DCI format corresponding to the second DMRS sequence supports data transmission scheduling with HARQ process numbers less than or equal to the first value.

In some embodiments, if the DMRS sequence corresponding to the first DCI is the first DMRS sequence, it means that the first HARQ process number is greater than the first value; or, if the DMRS sequence corresponding to the first DCI is the first DMRS sequence is the second DMRS sequence, indicating that the first HARQ process number is less than or equal to the first value. In this case, it can be considered that the first DMRS sequence and the second DMRS sequence are used as auxiliary bits to determine the target HARQ process number. For example, the first DMRS sequence corresponds to high-order bit 1, and the second DMRS sequence corresponds to high-order bit 0. For example, the first HARQ process number ranges from 16 to 31, and the second HARQ process number ranges from 0 to 15.

For example, if the first DCI received by the terminal device corresponds to the first DMRS sequence, the terminal device determines the corresponding HARQ process number according to the HARQ process number indication field in the first DCI and setting 1 as the high bit of the HARQ process number. HARQ process ID. Or, if the first DCI received by the terminal device corresponds to the second DMRS sequence, the terminal device determines the HARQ corresponding to the first DCI according to the HARQ process number indication field in the first DCI and setting 0 as the high order of the HARQ process number Process ID.

In other embodiments, if the DMRS sequence corresponding to the first DCI is the first DMRS sequence, it means that the range of HARQ process IDs to which the first HARQ process ID belongs is the range of the first HARQ process ID; or, if all If the DMRS sequence corresponding to the first DCI is the second DMRS sequence, it means that the HARQ process number range to which the first HARQ process number belongs is the second HARQ process number range. In this case, if the first HARQ process number is greater than the first value, additional auxiliary information and the HARQ process number indication field in the first DCI are required for joint indication.

Optionally, the first DMRS sequence is a DMRS sequence configured by the network device for the terminal device. For example, the first DMRS sequence is configured by the network device for the terminal device to support the data transmission schedule with a HARQ process number greater than the first value, or to support the data transmission schedule of the first HARQ process number range.

Optionally, the second DMRS sequence is a DMRS sequence configured by the network device for the terminal device. For example, the second DMRS sequence is a data transmission schedule configured by the network device for the terminal device to support a HARQ process number less than or equal to the first value, or a data transmission schedule to support a second HARQ process number range.

Mode 5: Indicate different HARQ process number ranges through different time domain resources

As an embodiment, the first time domain resource range is used to indicate the first HARQ process number range, and the second time domain resource range is used to indicate the second HARQ process number range, wherein the HARQ process included in the first HARQ process range The maximum value of the HARQ process number is greater than the first value, and the maximum value of the HARQ process number included in the second HARQ process number range is equal to the first value.

That is, the first DCI format corresponding to the first time domain resource range supports data transmission scheduling with a HARQ process number greater than the first value, and the first DCI format corresponding to the second time domain resource range supports data with a HARQ process number less than or equal to the first value. Transmission scheduling.

In some embodiments, if the time domain resource range corresponding to the first DCI is the first time domain resource range, it means that the first HARQ process number is greater than the first value; or, if the first DCI If the corresponding time domain resource range is the second time domain resource range, it means that the first HARQ process number is less than or equal to the first value. In this case, it can be considered that the first time domain resource range and the second time domain resource range are used as auxiliary bits for determining the target HARQ process number. For example, the first time domain resource range corresponds to high-order bit 1, and the second time-domain resource range corresponds to high-order bit 0. For example, the first HARQ process number ranges from 16 to 31, and the second HARQ process number ranges from 0 to 15.

For example, if the PDSCH or PUSCH scheduled by the first DCI received by the terminal device corresponds to the first time domain resource range, the terminal device sets 1 as the high-order bit of the HARQ process number according to the HARQ process number indication field in the first DCI. Determine the HARQ process ID corresponding to the first DCI. Or, if the PDSCH or PUSCH scheduled by the first DCI received by the terminal device corresponds to the second time domain resource range, the terminal device determines according to the HARQ process number indication field in the first DCI and 0 as the high bit of the HARQ process number. The HARQ process number corresponding to the first DCI.

In other embodiments, if the time domain resource range corresponding to the first DCI is the first time domain resource range, it means that the HARQ process ID range to which the first HARQ process ID belongs is the first HARQ process ID range; Or, if the time domain resource range corresponding to the first DCI is the second time domain resource range, it means that the HARQ process ID range to which the first HARQ process ID belongs is the second HARQ process ID range. In this case, if the first HARQ process number is greater than the first value, additional auxiliary information and the HARQ process number indication field in the first DCI are required for joint indication.

Optionally, the first time domain resource range is a time domain resource range configured or preset by the network device for the terminal device. For example, the first time domain resource range is configured by the network device for the terminal device to support data transmission scheduling with a HARQ process number greater than the first value, or data transmission scheduling for supporting the first HARQ process number range.

Optionally, the second time domain resource range is a time domain resource range configured or preset by the network device for the terminal device. For example, the second time domain resource range is a data transmission schedule configured by the network device for the terminal device to support a HARQ process number less than or equal to the first value, or a data transmission schedule to support a second HARQ process number range.

Optionally, in some embodiments, the time domain resources include at least one of the following:

The slot number or slot group corresponding to the HARQ process;

System Frame Number (SFN) corresponding to the HARQ process number;

The time window corresponding to the HARQ process.

For example, the low-order bits in the HARQ process number may be determined according to the time slot number corresponding to the HARQ process number, or the high-order bits in the HARQ process number may be determined according to the time slot group identifier (Identify, ID) corresponding to the HARQ process number. , or the HARQ process number is determined according to the time window index corresponding to the HARQ process number, wherein the range of the HARQ process number that can be scheduled in different time windows is different.

As an example, it is assumed that the time domain resources are divided into different periods, the starting position of each period is every 2 radio frames, and the length is 2 radio frames. The maximum number of HARQ processes that can be scheduled in each cycle is 16. Assuming that the maximum number of HARQ processes supported by the first DCI format is 32, the index corresponding to each cycle can be used to determine the high-order bit (Most Significant Bit, MSB) or low-order bit (Least Significant Bit, LSB of the scheduled HARQ process number) ). Take the index corresponding to each cycle for determining the MSB of the scheduled HARQ process number as an example, as shown in Table 1.

周期标识Cycle ID	第一周期0first cycle 0	第一周期1 first cycle 1
HARQ进程号高位HARQ process number high order	00	11

If the terminal device receives the first DCI on the third subframe of radio frame P+1, or the terminal device is scheduled to transmit the first TB on the third subframe of radio frame P+1, where the The HARQ process number indication field indicates 1100. where P is an integer. The terminal device may determine that the HARQ process number for transmitting the first TB is 01100, that is, the HARQ process number of the first TB is 12.

If the terminal device receives the first DCI on the 8th subframe of the radio frame P+2, or the terminal device is scheduled to transmit the first TB on the 8th subframe of the radio frame P+2, where the The HARQ process number indication field indicates 1100. Correspondingly, the terminal device may determine that the HARQ process number for transmitting the first TB is 11100, that is, the HARQ process number of the first TB is 28.

If the network device needs to schedule the terminal device to retransmit the transport block in the first TB, or the network device schedules the terminal device to use the HARQ process with the HARQ process number of 12 for transmission, the network device needs to be within the radio frame P+4*i Scheduled within the first cycle 0 of , where i is a positive integer. For example, the network device may schedule the HARQ process with the HARQ process number 12 on the 4th subframe in the radio frame P+4, or the network device may schedule the HARQ process number 12 on the 7th subframe in the radio frame P+5 the HARQ process.

Optionally, in other embodiments of the present application, different states of the terminal device support different HARQ process ranges corresponding to the first DCI format.

As an example, if the terminal device is in a connected state, the first DCI format supports the first HARQ process scope, or if the terminal device is in a disconnected state, such as an idle (Idle) state or an inactive (Inacitive) state, the first DCI format supports the first HARQ process scope. The DCI format supports the second HARQ process scope.

Then, the terminal device can determine the HARQ process number used for the data transmission scheduled by the first DCI in a corresponding manner according to the state it is in. For example, if the terminal device is in the disconnected state, the target HARQ process number is determined according to the value in the HARQ process number indication field in the first DCI. For another example, if the terminal device is in the connected state, the HARQ process number in the first DCI is determined according to the value of the HARQ process number indication field in the first DCI. The process number indication field is combined with the first information to determine the target HARQ process number.

It should be noted that, the foregoing modes 1 to 5 may be implemented independently, or may also be implemented in combination, which is not limited in this application. For example, different HARQ process ranges are indicated by different RNTIs, and a specific HARQ process number is further determined by using the time domain resource corresponding to the first DCI.

The above, in conjunction with Modes 1 to 5, describes how to indicate a HARQ process ID greater than the first value when the fallback DCI format supports data transmission scheduling with a HARQ process ID greater than the first value. In the following, how to realize the compatible scheduling with the non-fallback DCI format when the number of HARQ processes supported by the fallback DCI format is the three cases described above.

Optionally, in some embodiments, before S310, the method 300 further includes:

The terminal device receives the second DCI sent by the network device, where the second DCI is used to schedule transmission of the first TB through the first HARQ process, where the second DCI corresponds to a second DCI format, The maximum schedulable HARQ process number of the second DCI format is greater than the first value.

In this case, the first DCI format schedules the retransmission of the first TB, and the second DCI format schedules the initial transmission of the first TB, or may also be the retransmission of the first TB.

Optionally, in some embodiments, the first HARQ process number corresponding to the first HARQ process is less than or equal to the first value. For example, if the fallback DCI format supports data transmission scheduling with a HARQ process number not greater than the first value, and the non-fallback DCI format supports data transmission scheduling with a HARQ process number greater than the first value, if the non-fallback DCI format schedules the first For the initial transmission of the TB, if the HARQ process number corresponding to the first TB is not greater than the first value, the fallback DCI format may be used to schedule the retransmission of the first TB. Optionally, in other embodiments, after S310, the method 300 further includes:

The terminal device receives a third DCI sent by the network device, where the third DCI is used to schedule transmission of the first TB through the first HARQ process, where the third DCI corresponds to a second DCI format, The maximum schedulable HARQ process number of the second DCI format is greater than the first value.

In this case, it may be considered that the second DCI format schedules the retransmission of the first TB, and the first DCI format schedules the initial transmission of the first TB, or may also be the retransmission of the first TB.

In conclusion, the first DCI format can be used to schedule the initial transmission or retransmission of the first TB, and the second DCI format can also be used to schedule the initial transmission or retransmission of the first TB.

Optionally, in some embodiments, the second DCI format supports the aforementioned first HARQ process range, or in other words, the second DCI format supports data transmission scheduling using a HARQ process number greater than the first value.

Optionally, in some embodiments, the second DCI format includes a non-fallback DCI format.

That is, the fallback DCI format can be used to schedule the initial transmission or retransmission of the first TB, and the non-fallback DCI format can be used to schedule the initial transmission or retransmission of the first TB.

It should be understood that the present application does not limit the specific DCI format included in the non-fallback DCI format.

As an example, the first TB is a TB in downlink transmission, and the second DCI format includes at least one of DCI format 1_1 and DCI format 1_2.

As another example, the first TB is a TB in uplink transmission, and the second DCI format includes at least one of DCI format 0_1 and DCI format 0_2.

In this embodiment of the present application, the non-fallback DCI format supports data transmission scheduling in which the HARQ process number is greater than the first value.

Optionally, in some embodiments, the size of the HARQ process number indication field in the non-fallback DCI format is a fixed value, and can support data transmission scheduling with a HARQ process number greater than the first value. For example, the maximum number of HARQ processes configured on the terminal device is 32 (or the maximum HARQ process number is 31), and the HARQ process number indication field in the non-fallback DCI format is 5 bits.

Optionally, in some embodiments, the size of the HARQ process number indication field in the non-fallback DCI format is determined according to the maximum number of HARQ processes configured on the terminal device, and the HARQ process number indication field is a maximum of a preset value. Alternatively, the size of the HARQ process number indication field in the non-fallback DCI format is configured by the network device, and the maximum value that can be configured is a preset value. Alternatively, the size of the HARQ process number indication field in the non-fallback DCI format is fixed to a preset value.

As an example, assume the preset value is 4. When the size of the HARQ process ID indication field is 4 bits and the maximum number of HARQ processes configured on the terminal device is 32, the range of HARQ process IDs that can be scheduled is 0 to 31, where the HARQ process ID is based on the HARQ process ID indication. domain and the aforementioned first information.

Hereinafter, in conjunction with specific embodiments, how to implement compatible scheduling between the fallback DCI format and the non-fallback DCI format when the number of HARQ processes supported by the fallback DCI format is the aforementioned three cases.

For case 1, the fallback DCI format supports data transmission scheduling with HARQ process numbers less than or equal to the first value, and the non-fallback DCI format supports data transmission scheduling with HARQ process numbers greater than the first value.

Example 1:

The initial transmission of the first TB is scheduled through the first HARQ process using the non-fallback DCI format, and the retransmission of the first TB is scheduled through the first HARQ process using the non-fallback DCI format.

For example, for downlink transmission, if the DCI format 1_1 or DCI format 1_2 is used to schedule the initial transmission of the first TB in the PDSCH through the first HARQ process, when retransmission is required, the DCI format 1_1 or DCI format 1_2 is also used to schedule the first transmission through the first HARQ process. A HARQ process performs retransmission of the first TB. Optionally, the initial transmission and retransmission of the first TB can be scheduled through the first HARQ process using the same DCI format; alternatively, the initial transmission and retransmission of the first TB can be scheduled through the first HARQ process using different DCI formats, For example, the initial transmission of the first TB is scheduled through the first HARQ process using DCI format 1_2, and the retransmission of the first TB is scheduled through the first HARQ process using DCI format 1_1.

For another example, for uplink transmission, if DCI format 0_1 or DCI format 0_2 is used to schedule the initial transmission of the first TB in the PUSCH through the first HARQ process, when retransmission is required, the DCI format 0_1 or DCI format 0_2 is also used to schedule the initial transmission. The first HARQ process performs retransmission of the first TB. Optionally, the initial transmission and retransmission of the first TB can be scheduled through the first HARQ process using the same DCI format; alternatively, the initial transmission and retransmission of the first TB can be scheduled through the first HARQ process using different DCI formats, For example, the initial transmission of the first TB is scheduled through the first HARQ process using DCI format 0_2, and the retransmission of the first TB is scheduled through the first HARQ process using DCI format 0_1.

Therefore, when the number of HARQ processes scheduled in the fallback DCI format and the non-fallback DCI format is different, the initial transmission and retransmission behavior of the non-fallback DCI format scheduling can be restricted, and it is possible to avoid the inability to schedule HARQ processes with HARQ process numbers greater than 16. situation of the process.

Embodiment 2: use the non-fallback DCI format to schedule the initial transmission of the first TB through the first HARQ process, wherein if the HARQ process number of the first HARQ process is greater than 15, use the non-fallback DCI format to schedule the first TB The HARQ process performs the retransmission of the first TB; or, if the HARQ process number of the first HARQ process is less than or equal to 15, use the non-fallback DCI format or the fallback DCI format to schedule the first HARQ process to perform the first TB TB retransmission.

For example, for downlink transmission, if DCI format 1_1 or DCI format 1_2 is used to schedule the initial transmission of the first TB in the PDSCH through the first HARQ process, when retransmission is required, if the HARQ process number of the first HARQ process is greater than 15, Then, also use DCI format 1_1 or DCI format 1_2 to schedule the retransmission of the first TB through the first HARQ process; or, if the HARQ process number of the first HARQ process is less than or equal to 15, you can use DCI format 1_0 or DCI format 1_1 or DCI format 1_2 schedules retransmission of the first TB through the first HARQ process.

For another example, for uplink transmission, if DCI format 0_1 or DCI format 0_2 is used to schedule the initial transmission of the first TB in the PDSCH through the first HARQ process, when retransmission is required, if the HARQ process number of the first HARQ process is greater than 15 , DCI format 0_1 or DCI format 0_2 is also used to schedule the retransmission of the first TB through the first HARQ process; or, if the HARQ process number of the first HARQ process is less than or equal to 15, then DCI format 0_0 or DCI can be used Format 0_1 or DCI format 0_2 schedules retransmission of the first TB through the first HARQ process.

Therefore, in Embodiment 2, there is no restriction on the scheduling of HARQ processes whose HARQ process numbers are less than or equal to 15, which can improve the flexibility of scheduling.

Embodiment 3: Use the fallback DCI format to schedule the initial transmission of the first TB through the first HARQ process, then use the non-fallback DCI format or the fallback DCI format to schedule the retransmission of the first TB through the first HARQ process .

Therefore, when the number of HARQ processes scheduled in the fallback DCI format and the non-fallback DCI format is different, since the range of the number of HARQ processes scheduled in the non-fallback DCI format may be greater than the range of the number of HARQ processes scheduled in the fallback DCI format, Therefore, there may be no limit on the number of HARQ processes scheduled in the fallback DCI format.

For case 2, the fallback DCI format supports data transmission scheduling with a HARQ process number greater than the first value under certain circumstances, and the non-fallback DCI format supports data transmission scheduling with a HARQ process number greater than the first value.

For how the fallback DCI format supports data transmission scheduling with a HARQ process number greater than the first value, refer to the specific implementations in the foregoing manners 1 to 5.

In the following, the first RNTI and the second RNTI respectively indicate that the fallback DCI format supports data transmission scheduling with HARQ process numbers greater than 15 and data transmission scheduling less than or equal to 15 as an example to illustrate how to implement fallback DCI format and non-fallback DCI format. Compatible scheduling in DCI format.

Embodiment 4: Use the fallback DCI format scrambled by the first RNTI to schedule the initial transmission of the first TB through the first HARQ process, then use the non-fallback DCI format or the fallback DCI format scrambled by the first RNTI to schedule the initial transmission of the first TB through the first HARQ process. The first HARQ process performs retransmission of the first TB.

Specifically, the fallback DCI format scrambled by the first RNTI can support data transmission scheduling with HARQ process numbers greater than 15, then when retransmitting the first TB, the selected DCI format also needs to support HARQ process numbers greater than 15 , therefore, a non-fallback DCI format or a fallback DCI format scrambled by the first RNTI can be selected.

Embodiment 5: Use the fallback DCI format scrambled by the second RNTI to schedule the initial transmission of the first TB through the first HARQ process, then use the non-fallback DCI format or the fallback DCI format to schedule the first HARQ process to perform the initial transmission of the first TB. Retransmission of the first TB.

Specifically, the fallback DCI format scrambled by the second RNTI can support data transmission scheduling with a HARQ process number less than or equal to 15, then when retransmission of the first TB is performed, the selected DCI format only needs to support the data transmission schedule less than or equal to 15 HARQ process number, therefore, a fallback DCI format (which can be scrambled with either RNTI) or a non-fallback DCI format can be selected.

Embodiment 6: Use the non-fallback DCI format to schedule the initial transmission of the first TB through the first HARQ process, then use the non-fallback DCI format or the fallback DCI format scrambled by the first RNTI to schedule the first TB through the first HARQ process. Retransmission of the first TB.

Specifically, using the non-fallback DCI format can support data transmission scheduling with HARQ process numbers greater than 15. When retransmission of the first TB is performed, the selected DCI format also needs to support HARQ process numbers greater than 15. Therefore, you can choose A non-fallback DCI format or a fallback DCI format scrambled by the first RNTI.

Embodiment 7: use the non-fallback DCI format to schedule the initial transmission of the first TB through the first HARQ process, wherein if the HARQ process number of the first HARQ process is greater than 15, use the non-fallback DCI format or the first RNTI plus The scrambled fallback DCI format schedules the retransmission of the first TB through the first HARQ process; or, if the HARQ process number of the first HARQ process is less than or equal to 15, use the non-fallback DCI format or the fallback DCI format Retransmission of the first TB is scheduled through the first HARQ process.

To sum up, when the DCI format used for initial transmission scheduling is determined according to the DCI format of initial transmission scheduling, a DCI format whose number of supported HARQ processes is greater than or equal to the number of HARQ processes supported by the DCI format of initial transmission scheduling can be selected, or, alternatively, A DCI format that supports the HARQ process number used for initial transmission scheduling can be selected.

Therefore, in this embodiment of the present application, when the first DCI format supports different numbers of HARQ processes, the terminal device can determine the HARQ process number corresponding to the data transmission scheduled by the first DCI format in an appropriate manner, thereby ensuring that the network device This is consistent with the terminal device's understanding of the scheduled HARQ process ID.

The method embodiment of the present application is described in detail above with reference to FIG. 3 , and the device embodiment of the present application is described in detail below with reference to FIGS. 4 to 8 . It should be understood that the device embodiment and the method embodiment correspond to each other, and similar descriptions may be See method examples.

FIG. 4 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application. As shown in Figure 4, the terminal device 400 includes:

The communication unit 410 is configured to receive the first downlink control information DCI sent by the network device, where the first DCI is used to schedule the transmission of the first transport block TB through the first HARQ process, wherein the first DCI is The HARQ process corresponds to a first HARQ process number, the first DCI corresponds to a first DCI format, and the maximum HARQ process number indicated by the HARQ process number indication field in the first DCI format is a first value; and

The first TB is transmitted through the first HARQ process.

Optionally, in some embodiments, the first HARQ process number is determined according to the first information corresponding to the first DCI and the HARQ process number indication field in the first DCI.

Optionally, in some embodiments, the first information corresponding to the first DCI includes at least one of the following:

the wireless network temporary identifier RNTI corresponding to the first DCI;

the search space corresponding to the first DCI;

the CCE index range of the control channel element corresponding to the first DCI;

a first information field in the first DCI except the HARQ process number indication field;

Optionally, the first information includes an RNTI corresponding to the first DCI, wherein, in a case where the RNTI corresponding to the first DCI is the first RNTI, the first HARQ process number is greater than the first HARQ process number. Numerical value, or the range of HARQ process IDs to which the first HARQ process ID belongs is the range of the first HARQ process IDs; or, when the RNTI corresponding to the first DCI is the second RNTI, the first HARQ process ID is less than or equal to the first value, or the range of HARQ process numbers to which the first HARQ process number belongs is the second range of HARQ process numbers.

Optionally, in some embodiments, the first TB is a TB in uplink transmission, and the first RNTI includes at least one of the following: CS-RNTI, MCS-C-RNTI, SP-CSI-RNTI and/or, the second RNTI includes at least one of the following:

The temporary cell radio network temporarily identifies the TC-RNTI, and the cell radio network temporarily identifies the C-RNTI.

Optionally, in some embodiments, the first TB is a TB in downlink transmission, and the first RNTI includes at least one of the following: CS-RNTI, MCS-C-RNTI; and/or,

The second RNTI includes at least one of the following:

Optionally, in some embodiments, the first information includes a search space corresponding to the first DCI, wherein,

In the case where the search space corresponding to the first DCI is the first search space, the first HARQ process number is greater than the first value, or the range of HARQ process numbers to which the first HARQ process number belongs is the first HARQ process number range; or,

When the search space corresponding to the first DCI is the second search space, the first HARQ process number is less than or equal to the first value, or the range of HARQ process numbers to which the first HARQ process number belongs is The second range of HARQ process numbers.

Optionally, in some embodiments, the first search space includes a terminal device-specific search space, and/or the second search space includes a common search space.

Optionally, in some embodiments, the first information includes a CCE index range corresponding to the first DCI, wherein, when the search space corresponding to the first DCI is the first CCE index range, the The first HARQ process number is greater than the first value, or the HARQ process number range to which the first HARQ process number belongs is the first HARQ process number range; or, the search space corresponding to the first DCI is the second HARQ process number range. In the case of the CCE index range, the first HARQ process number is less than or equal to the first value, or the HARQ process number range to which the first HARQ process number belongs is the second HARQ process number range.

Optionally, in some embodiments, the first CCE index range is configured or preset by the network device, and/or the second CCE index range is configured or preset by the network device of.

Optionally, the first information includes a time domain resource corresponding to the first HARQ process scheduled by the first DCI, wherein the time domain resource corresponding to the first HARQ process corresponds to a first time domain resource range In the case of , the first HARQ process number is greater than the first value, or the HARQ process number range to which the first HARQ process number belongs is the first HARQ process number range; or, in the first HARQ process corresponding to When the time domain resource corresponding to the second time domain resource range, the first HARQ process ID is less than or equal to the first value, or the HARQ process ID range to which the first HARQ process ID belongs is the second HARQ process ID number range.

Optionally, in some embodiments, the first time domain resource range is configured or preset by the network device, and/or the second time domain resource range is configured by the network device or default.

Optionally, in some embodiments, when the first HARQ process number is greater than the first value, or the HARQ process number range to which the first HARQ process number belongs is the first HARQ process number range Next, the first information further includes a first information field other than the HARQ process number indication field in the first DCI.

Optionally, in some embodiments, the first information includes a first information field other than the HARQ process number indication field in the first DCI, wherein the first HARQ process number is based on the first HARQ process number. The first information corresponding to a DCI and the HARQ process number indication field in the first DCI are determined, including: the first HARQ process number is based on some or all bits in the first information field, and all the bits in the first information field. It is determined by all bits in the HARQ process number indication field in the first DCI.

Optionally, in some embodiments, the first information field includes a redundancy version RV field.

Optionally, in some embodiments, the first HARQ process number is less than or equal to the first value, and the first HARQ process number is determined according to the HARQ process number indication field in the first DCI.

Optionally, before receiving the first DCI sent by the network device, the communication unit 410 is further configured to: receive a second DCI sent by the network device, where the second DCI is used to schedule the first HARQ process The first TB is transmitted, wherein the second DCI corresponds to a second DCI format, and the maximum schedulable HARQ process number of the second DCI format is greater than the first value.

Optionally, after receiving the first DCI sent by the network device, the communication unit 410 is further configured to: receive a third DCI sent by the network device, where the third DCI is used to schedule the first HARQ process The first TB is transmitted, wherein the third DCI corresponds to a second DCI format, and the maximum schedulable HARQ process number of the second DCI format is greater than the first value.

Optionally, in some embodiments, the first TB is a TB in downlink transmission, and the second DCI format includes at least one of DCI format 1_1 and DCI format 1_2; or, the first TB is For the TB in uplink transmission, the second DCI format includes at least one of DCI format 0_1 and DCI format 0_2.

Optionally, in some embodiments, the first TB is a TB in downlink transmission, and the first DCI format includes DCI format 1_0; or, the first TB is a TB in uplink transmission, and the first DCI format includes DCI format 1_0; A DCI format includes DCI format 0_0.

Optionally, in some embodiments, the communication unit 410 is further configured to: report downlink capability information of the terminal device to the network device, where the downlink capability information is used to indicate downlink HARQ supported by the terminal device The number of processes is greater than a specific value, or the maximum HARQ process number supported by the terminal device for scheduled downlink transmission is greater than the first value, where the specific value is equal to the first value plus one; and/or, send the The network device reports the uplink capability information of the terminal device, and the uplink capability information is used to indicate that the number of uplink HARQ processes supported by the terminal device is greater than a specific value, or the maximum number of HARQ processes supported by the terminal device for scheduled uplink transmission is greater than The first numerical value, wherein the specific numerical value is equal to the first numerical value plus one.

Optionally, in some embodiments, the first TB is a TB in downlink transmission, and the HARQ process number range corresponding to the number of downlink HARQ processes configured by the terminal device is the first HARQ process number range, or, The maximum HARQ process number that the terminal device supports for scheduled downlink transmission is greater than the first value; or, the first TB is a TB in uplink transmission, and the HARQ process number corresponding to the number of uplink HARQ processes configured by the terminal device The range is the range of the first HARQ process number, or, the maximum HARQ process number that the terminal device supports for scheduled uplink transmission is greater than the first value.

Optionally, in some embodiments, the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip. The aforementioned processing unit may be one or more processors.

It should be understood that the terminal device 400 according to the embodiment of the present application may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 400 are respectively for realizing the method shown in FIG. 3 . The corresponding process of the terminal device in 300 is not repeated here for brevity.

FIG. 5 is a schematic block diagram of a network device according to an embodiment of the present application. The network device 500 of FIG. 5 includes:

The communication unit 510 is configured to send the first downlink control information DCI to the terminal device, where the first DCI is used to schedule the transmission of the first transport block TB through the first HARQ process of HARQ, wherein the first HARQ The process corresponds to the first HARQ process number, the first DCI corresponds to the first DCI format, and the maximum HARQ process number indicated by the HARQ process number indication field in the first DCI format is the first value.

Optionally, in some embodiments, the first HARQ process number is indicated by the first information corresponding to the first DCI and the HARQ process number indication field in the first DCI.

the wireless network temporary identifier RNTI corresponding to the first DCI;

the search space corresponding to the first DCI;

Optionally, in some embodiments, the first information includes the RNTI corresponding to the first DCI, wherein,

When the RNTI corresponding to the first DCI is the first RNTI, the first HARQ process number is greater than the first value, or the range of HARQ process numbers to which the first HARQ process number belongs is the first HARQ process number range; or,

When the RNTI corresponding to the first DCI is the second RNTI, the first HARQ process number is less than or equal to the first value, or the HARQ process number range to which the first HARQ process number belongs is the second HARQ process ID range.

Optionally, in some embodiments, the first TB is a TB in uplink transmission, and the first RNTI includes at least one of the following: CS-RNTI, MCS-C-RNTI, SP-CSI-RNTI ;and / or,

The second RNTI includes at least one of the following:

Optionally, in some embodiments, the first information includes a first information field other than the HARQ process number indication field in the first DCI, wherein the first HARQ process number is obtained through the first HARQ process number. The first information corresponding to a DCI and the HARQ process number indication field in the first DCI indicate that the first HARQ process number is obtained through some or all bits in the first information field, and all the bits in the first information field. It is indicated by all bits in the HARQ process ID indication field in the first DCI.

Optionally, in some embodiments, before sending the first DCI to the terminal device, the communication unit 510 is further configured to: send a second DCI to the terminal device, where the second DCI is used for scheduling The first HARQ process transmits the first TB, wherein the second DCI corresponds to a second DCI format, and the maximum schedulable HARQ process number of the second DCI format is greater than the first value.

Optionally, in some embodiments, after sending the first DCI to the terminal device, the communication unit 510 is further configured to: send a third DCI to the terminal device, where the third DCI is used for scheduling The first HARQ process transmits the first TB, wherein the third DCI corresponds to a second DCI format, and the maximum schedulable HARQ process number of the second DCI format is greater than the first value.

Optionally, in some embodiments, the communication unit 510 is further configured to: receive downlink capability information of the terminal device reported by the terminal device, where the downlink capability information is used to indicate downlink capabilities supported by the terminal device The number of HARQ processes is greater than a specific value, or the maximum number of HARQ processes supported by the terminal device for scheduled downlink transmission is greater than the first value, where the specific value is equal to the first value plus one; and/or, receiving all The uplink capability information of the terminal device reported by the terminal device, the uplink capability information is used to indicate that the number of uplink HARQ processes supported by the terminal device is greater than a specific value, or the terminal device supports the maximum HARQ process for scheduled uplink transmission The number is greater than the first numerical value, wherein the specific numerical value is equal to the first numerical value plus one.

Optionally, in some embodiments, the first TB is a TB in downlink transmission, and the HARQ process number range corresponding to the number of downlink HARQ processes configured by the terminal device is the first HARQ process number range, or, The maximum HARQ process number that the terminal device supports for scheduled downlink transmission is greater than the first value; or,

The first TB is a TB in uplink transmission, and the HARQ process number range corresponding to the number of uplink HARQ processes configured by the terminal device is the first HARQ process number range, or the terminal device supports the maximum number of scheduled uplink transmissions. The HARQ process number is greater than the first value.

It should be understood that the network device 500 according to the embodiment of the present application may correspond to the network device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the network device 500 are for realizing the method shown in FIG. 3 respectively. The corresponding process of the network device in 300 is not repeated here for brevity.

FIG. 6 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application. The communication device 600 shown in FIG. 6 includes a processor 610, and the processor 610 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 6 , the communication device 600 may further include a memory 620 . The processor 610 may call and run a computer program from the memory 620 to implement the methods in the embodiments of the present application.

The memory 620 may be a separate device independent of the processor 610 , or may be integrated in the processor 610 .

Optionally, as shown in FIG. 6 , the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, may send information or data to other devices, or receive other devices Information or data sent by a device.

Among them, the transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include antennas, and the number of the antennas may be one or more.

Optionally, the communication device 600 may specifically be the network device in this embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in each method in the embodiment of the present application. For the sake of brevity, details are not repeated here. .

Optionally, the communication device 600 may specifically be the mobile terminal/terminal device of the embodiments of the present application, and the communication device 600 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, for the sake of brevity. , and will not be repeated here.

FIG. 7 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 700 shown in FIG. 7 includes a processor 710, and the processor 710 can call and run a computer program from a memory, so as to implement the method in this embodiment of the present application.

Optionally, as shown in FIG. 7 , the chip 700 may further include a memory 720 . The processor 710 may call and run a computer program from the memory 720 to implement the methods in the embodiments of the present application.

The memory 720 may be a separate device independent of the processor 710 , or may be integrated in the processor 710 .

Optionally, the chip 700 may further include an input interface 730 . The processor 710 may control the input interface 730 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.

Optionally, the chip 700 may further include an output interface 740 . The processor 710 can control the output interface 740 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.

Optionally, the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiment of the present application, which is not repeated here for brevity.

Optionally, the chip can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application. For brevity, here No longer.

It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.

FIG. 8 is a schematic block diagram of a communication system 900 provided by an embodiment of the present application. As shown in FIG. 8 , the communication system 900 includes a terminal device 910 and a network device 920 .

The terminal device 910 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 920 can be used to implement the corresponding functions implemented by the network device in the above method. For brevity, details are not repeated here. .

It should be understood that the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components. The methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory may be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

It should be understood that the above memory is an example but not a limitative description, for example, the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.

Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.

Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For brevity, here No longer.

Optionally, the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application. , and are not repeated here for brevity.

Embodiments of the present application also provide a computer program product, including computer program instructions.

Optionally, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. Repeat.

Optionally, the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, For brevity, details are not repeated here.

The embodiments of the present application also provide a computer program.

Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity. , and will not be repeated here.

Optionally, the computer program may be applied to the mobile terminal/terminal device in the embodiments of the present application, and when the computer program is run on the computer, the mobile terminal/terminal device implements the various methods of the computer program in the embodiments of the present application. The corresponding process, for the sake of brevity, will not be repeated here.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

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

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

The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution, and the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

The above are only specific implementations of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

A method of wireless communication, comprising:

The terminal device receives the first downlink control information DCI sent by the network device, where the first DCI is used to schedule the transmission of the first transport block TB through the first HARQ process of the HARQ request, wherein the first HARQ process corresponds to the first HARQ process. A HARQ process number, the first DCI corresponds to a first DCI format, and the maximum HARQ process number indicated by the HARQ process number indication field in the first DCI format is the first value;

The terminal device transmits the first TB through the first HARQ process.
The method according to claim 1, wherein the first HARQ process number is determined according to first information corresponding to the first DCI and a HARQ process number indication field in the first DCI.
The method according to claim 2, wherein the first information corresponding to the first DCI comprises at least one of the following:

the wireless network temporary identifier RNTI corresponding to the first DCI;

the search space corresponding to the first DCI;

the CCE index range of the control channel element corresponding to the first DCI;

time domain resources corresponding to the first HARQ process scheduled by the first DCI;

the first information field in the first DCI except the HARQ process number indication field;

The demodulation reference signal DMRS sequence corresponding to the first HARQ process scheduled by the first DCI.
The method according to claim 2 or 3, wherein the first information comprises an RNTI corresponding to the first DCI, wherein:

When the RNTI corresponding to the first DCI is the first RNTI, the first HARQ process number is greater than the first value, or the range of HARQ process numbers to which the first HARQ process number belongs is the first HARQ process number range; or,

When the RNTI corresponding to the first DCI is the second RNTI, the first HARQ process number is less than or equal to the first value, or the HARQ process number range to which the first HARQ process number belongs is the second HARQ process ID range.
The method according to claim 4, wherein the first TB is a TB in uplink transmission, and the first RNTI includes at least one of the following: CS-RNTI, MCS-C-RNTI, SP-RNTI CSI-RNTI; and/or,

The second RNTI includes at least one of the following:

The temporary cell radio network temporarily identifies the TC-RNTI, and the cell radio network temporarily identifies the C-RNTI.
The method according to claim 4, wherein the first TB is a TB in downlink transmission, and the first RNTI includes at least one of the following: CS-RNTI, MCS-C-RNTI; and/ or,

The second RNTI includes at least one of the following:

The temporary cell radio network temporarily identifies the TC-RNTI, and the cell radio network temporarily identifies the C-RNTI.
The method according to any one of claims 2-6, wherein the first information includes a search space corresponding to the first DCI, wherein,

In the case where the search space corresponding to the first DCI is the first search space, the first HARQ process number is greater than the first value, or the range of HARQ process numbers to which the first HARQ process number belongs is the first HARQ process number range; or,

When the search space corresponding to the first DCI is the second search space, the first HARQ process number is less than or equal to the first value, or the range of HARQ process numbers to which the first HARQ process number belongs is The second range of HARQ process numbers.
The method according to claim 7, wherein the first search space includes a search space dedicated to terminal equipment, and/or the second search space includes a common search space.
The method according to any one of claims 2-8, wherein the first information includes a CCE index range corresponding to the first DCI, wherein,

When the search space corresponding to the first DCI is the first CCE index range, the first HARQ process number is greater than the first value, or the HARQ process number range to which the first HARQ process number belongs is the first HARQ process number. A range of HARQ process numbers; or,

When the search space corresponding to the first DCI is the second CCE index range, the first HARQ process ID is less than or equal to the first value, or the HARQ process ID range to which the first HARQ process ID belongs is the range of the second HARQ process number.
The method according to claim 9, wherein the first CCE index range is configured or preset by the network device, and/or the second CCE index range is configured by the network device or preset.
The method according to any one of claims 2-10, wherein the first information includes time domain resources corresponding to the first HARQ process scheduled by the first DCI, wherein:

In the case that the time domain resource corresponding to the first HARQ process corresponds to the first time domain resource range, the first HARQ process number is greater than the first value, or the HARQ process number to which the first HARQ process number belongs The range is the range of the first HARQ process number; or,

When the time domain resource corresponding to the first HARQ process corresponds to the second time domain resource range, the first HARQ process ID is less than or equal to the first value, or the HARQ to which the first HARQ process ID belongs The process number range is the second HARQ process number range.
The method according to claim 11, wherein the first time domain resource range is configured or preset by the network device, and/or the second time domain resource range is the network device configured or preset.
The method according to any one of claims 4, 7, 9, and 11, wherein when the first HARQ process number is greater than the first value, or the HARQ process to which the first HARQ process number belongs When the number range is the first HARQ process number range, the first information further includes a first information field in the first DCI except the HARQ process number indication field.
The method according to any one of claims 2-13, wherein the first information includes a first information field in the first DCI except the HARQ process number indication field, wherein,

The first HARQ process number is determined according to the first information corresponding to the first DCI and the HARQ process number indication field in the first DCI, including:

The first HARQ process number is determined according to some or all bits in the first information field and all bits in the HARQ process number indication field in the first DCI.
The method of claim 14, wherein the first information field comprises a redundancy version RV field.
The method according to claim 1, wherein the first HARQ process number is less than or equal to the first value, and the first HARQ process number is based on a HARQ process number indication field in the first DCI definite.
The method according to claim 16, wherein before the terminal device receives the first DCI sent by the network device, the method further comprises:

The terminal device receives the second DCI sent by the network device, where the second DCI is used to schedule transmission of the first TB through the first HARQ process, where the second DCI corresponds to a second DCI format, The maximum schedulable HARQ process number of the second DCI format is greater than the first value.
The method according to claim 16, wherein after the terminal device receives the first DCI sent by the network device, the method further comprises:

The terminal device receives a third DCI sent by the network device, where the third DCI is used to schedule transmission of the first TB through the first HARQ process, where the third DCI corresponds to a second DCI format, The maximum schedulable HARQ process number of the second DCI format is greater than the first value.
The method according to claim 17 or 18, wherein the second DCI format comprises a non-fallback DCI format.
The method according to any one of claims 17-19, wherein the first TB is a TB in downlink transmission, and the second DCI format includes at least one of DCI format 1_1 and DCI format 1_2 ;or,

The first TB is a TB in uplink transmission, and the second DCI format includes at least one of DCI format 0_1 and DCI format 0_2.
The method according to any one of claims 1-20, wherein the first DCI format comprises a fallback DCI format.
The method according to any one of claims 1-21, wherein the first TB is a TB in downlink transmission, and the first DCI format includes DCI format 1_0; or,

The first TB is a TB in uplink transmission, and the first DCI format includes DCI format 0_0.
The method according to any one of claims 1-22, wherein the method further comprises: the terminal device reporting the downlink capability information of the terminal device to the network device, and the downlink capability information is used for to indicate that the number of downlink HARQ processes supported by the terminal device is greater than a specific value, or the maximum number of HARQ processes supported by the terminal device for scheduled downlink transmission is greater than the first value, where the specific value is equal to the first value plus one; and/or,

The terminal device reports the uplink capability information of the terminal device to the network device, where the uplink capability information is used to indicate that the number of uplink HARQ processes supported by the terminal device is greater than a specific value, or that the terminal device supports scheduled uplinks The maximum HARQ process number transmitted is greater than the first value, wherein the specific value is equal to the first value plus one.
The method according to any one of claims 1-23, wherein the first TB is a TB in downlink transmission, and the HARQ process number corresponding to the number of downlink HARQ processes configured on the terminal device ranges from the th A range of HARQ process numbers, or, the maximum HARQ process number that the terminal device supports for scheduled downlink transmission is greater than the first value; or,

The first TB is a TB in uplink transmission, and the HARQ process number range corresponding to the number of uplink HARQ processes configured by the terminal device is the first HARQ process number range, or the terminal device supports the maximum number of scheduled uplink transmissions. The HARQ process number is greater than the first value.
A method of wireless communication, comprising:

The network device sends the first downlink control information DCI to the terminal device, where the first DCI is used to schedule the transmission of the first transport block TB through the first HARQ process of the HARQ process, wherein the first HARQ process corresponds to the first HARQ process. HARQ process number, the first DCI corresponds to the first DCI format, and the maximum HARQ process number indicated by the HARQ process number indication field in the first DCI format is the first value.
The method according to claim 25, wherein the first HARQ process number is indicated by first information corresponding to the first DCI and a HARQ process number indication field in the first DCI.
The method according to claim 26, wherein the first information corresponding to the first DCI comprises at least one of the following:

the wireless network temporary identifier RNTI corresponding to the first DCI;

the search space corresponding to the first DCI;

the CCE index range of the control channel element corresponding to the first DCI;

time domain resources corresponding to the first HARQ process scheduled by the first DCI;

the first information field in the first DCI except the HARQ process number indication field;

The demodulation reference signal DMRS sequence corresponding to the first HARQ process scheduled by the first DCI.
The method according to claim 26 or 27, wherein the first information comprises an RNTI corresponding to the first DCI, wherein:

When the RNTI corresponding to the first DCI is the first RNTI, the first HARQ process number is greater than the first value, or the range of HARQ process numbers to which the first HARQ process number belongs is the first HARQ process number range; or,

When the RNTI corresponding to the first DCI is the second RNTI, the first HARQ process number is less than or equal to the first value, or the HARQ process number range to which the first HARQ process number belongs is the second HARQ process ID range.
The method according to claim 28, wherein the first TB is a TB in uplink transmission, and the first RNTI includes at least one of the following: CS-RNTI, MCS-C-RNTI, SP-RNTI CSI-RNTI; and/or,

The second RNTI includes at least one of the following:

The temporary cell radio network temporarily identifies the TC-RNTI, and the cell radio network temporarily identifies the C-RNTI.
The method according to claim 28, wherein the first TB is a TB in downlink transmission, and the first RNTI includes at least one of the following: CS-RNTI, MCS-C-RNTI; and/ or,

The second RNTI includes at least one of the following:

The temporary cell radio network temporarily identifies the TC-RNTI, and the cell radio network temporarily identifies the C-RNTI.
The method according to any one of claims 26-30, wherein the first information includes a search space corresponding to the first DCI, wherein,

In the case where the search space corresponding to the first DCI is the first search space, the first HARQ process number is greater than the first value, or the range of HARQ process numbers to which the first HARQ process number belongs is the first HARQ process number range; or,

When the search space corresponding to the first DCI is the second search space, the first HARQ process number is less than or equal to the first value, or the range of HARQ process numbers to which the first HARQ process number belongs is The second range of HARQ process numbers.
The method according to claim 31, wherein the first search space includes a search space dedicated to terminal equipment, and/or the second search space includes a common search space.
The method according to any one of claims 26-32, wherein the first information includes a CCE index range corresponding to the first DCI, wherein,

When the search space corresponding to the first DCI is the first CCE index range, the first HARQ process number is greater than the first value, or the HARQ process number range to which the first HARQ process number belongs is the first HARQ process number. A range of HARQ process numbers; or,

When the search space corresponding to the first DCI is the second CCE index range, the first HARQ process ID is less than or equal to the first value, or the HARQ process ID range to which the first HARQ process ID belongs is the range of the second HARQ process number.
The method according to claim 33, wherein the first CCE index range is configured or preset by the network device, and/or the second CCE index range is configured by the network device or preset.
The method according to any one of claims 26-34, wherein the first information includes time domain resources corresponding to the first HARQ process scheduled by the first DCI, wherein:

In the case that the time domain resource corresponding to the first HARQ process corresponds to the first time domain resource range, the first HARQ process number is greater than the first value, or the HARQ process number to which the first HARQ process number belongs The range is the range of the first HARQ process number; or,

When the time domain resource corresponding to the first HARQ process corresponds to the second time domain resource range, the first HARQ process ID is less than or equal to the first value, or the HARQ to which the first HARQ process ID belongs The process number range is the second HARQ process number range.
The method according to claim 35, wherein the first time domain resource range is configured or preset by the network device, and/or the second time domain resource range is the network device configured or preset.
The method according to any one of claims 28, 31, 33, and 35, wherein when the first HARQ process number is greater than the first value, or the HARQ process to which the first HARQ process number belongs When the number range is the first HARQ process number range, the first information further includes a first information field in the first DCI except the HARQ process number indication field.
The method according to any one of claims 26-37, wherein the first information includes a first information field in the first DCI except the HARQ process number indication field, wherein,

The first HARQ process number is indicated by the first information corresponding to the first DCI and the HARQ process number indication field in the first DCI, including:

The first HARQ process number is indicated by some or all bits in the first information field and all bits in the HARQ process number indication field in the first DCI.
The method of claim 38, wherein the first information field comprises a redundancy version RV field.
The method according to claim 25, wherein the first HARQ process number is less than or equal to the first value, and the first HARQ process number is based on a HARQ process number indication field in the first DCI definite.
The method according to claim 40, wherein before the network device sends the first DCI to the terminal device, the method further comprises:

The network device sends a second DCI to the terminal device, where the second DCI is used to schedule transmission of the first TB through the first HARQ process, wherein the second DCI corresponds to a second DCI format, and the The maximum HARQ process number that can be scheduled in the second DCI format is greater than the first value.
The method according to claim 41, wherein after the network device sends the first DCI to the terminal device, the method further comprises:

The network device sends a third DCI to the terminal device, where the third DCI is used to schedule transmission of the first TB through the first HARQ process, where the third DCI corresponds to the second DCI format, and the The maximum HARQ process number that can be scheduled in the second DCI format is greater than the first value.
The method according to claim 41 or 42, wherein the second DCI format comprises a non-fallback DCI format.
The method according to any one of claims 41-43, wherein the first TB is a TB in downlink transmission, and the second DCI format includes at least one of DCI format 1_1 and DCI format 1_2 ;or,

The first TB is a TB in uplink transmission, and the second DCI format includes at least one of DCI format 0_1 and DCI format 0_2.
The method according to any one of claims 25-44, wherein the first DCI format comprises a fallback DCI format.
The method according to any one of claims 25-45, wherein the first TB is a TB in downlink transmission, and the first DCI format includes DCI format 1_0; or,

The first TB is a TB in uplink transmission, and the first DCI format includes DCI format 0_0.
The method according to any one of claims 25-46, wherein the method further comprises: the network device receiving downlink capability information of the terminal device reported by the terminal device, the downlink capability information Used to indicate that the number of downlink HARQ processes supported by the terminal device is greater than a specific value, or the maximum number of HARQ processes supported by the terminal device for scheduled downlink transmission is greater than the first value, where the specific value is equal to the first value The value is incremented by one; and/or,

The network device receives the uplink capability information of the terminal device reported by the terminal device, where the uplink capability information is used to indicate that the number of uplink HARQ processes supported by the terminal device is greater than a specific value, or that the terminal device supports scheduling The maximum HARQ process number for uplink transmission is greater than the first value, wherein the specific value is equal to the first value plus one.
The method according to any one of claims 25-47, wherein the first TB is a TB in downlink transmission, and the range of HARQ process numbers corresponding to the number of downlink HARQ processes configured on the terminal device is the th A range of HARQ process numbers, or, the maximum HARQ process number that the terminal device supports for scheduled downlink transmission is greater than the first value; or,

The first TB is a TB in uplink transmission, and the HARQ process number range corresponding to the number of uplink HARQ processes configured by the terminal device is the first HARQ process number range, or the terminal device supports the maximum number of scheduled uplink transmissions. The HARQ process number is greater than the first value.
A terminal device, characterized in that it includes:

a communication unit, configured to receive the first downlink control information DCI sent by the network device, where the first DCI is used to schedule the transmission of the first transport block TB through the first HARQ process, wherein the first HARQ The process corresponds to a first HARQ process number, the first DCI corresponds to a first DCI format, and the maximum HARQ process number indicated by the HARQ process number indication field in the first DCI format is a first numerical value; and

The first TB is transmitted through the first HARQ process.
A network device, characterized in that it includes:

a communication unit, configured to send the first downlink control information DCI to the terminal device, where the first DCI is used to schedule the transmission of the first transport block TB through the first HARQ process of HARQ, wherein the first HARQ process Corresponding to the first HARQ process number, the first DCI corresponds to the first DCI format, and the maximum HARQ process number indicated by the HARQ process number indication field in the first DCI format is the first value.
A terminal device, characterized in that it comprises: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any one of claims 1 to 24. one of the methods described.
A chip, characterized by comprising: a processor for calling and running a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 1 to 24.
A computer-readable storage medium, characterized by being used for storing a computer program, the computer program causing a computer to execute the method according to any one of claims 1 to 24.
A computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method of any one of claims 1 to 24.
A computer program, characterized in that the computer program causes a computer to perform the method according to any one of claims 1 to 24.
A network device, characterized in that it comprises: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any one of claims 25 to 48. one of the methods described.
A chip, characterized by comprising: a processor for calling and running a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 25 to 48.
A computer-readable storage medium, characterized by being used for storing a computer program, the computer program causing a computer to execute the method according to any one of claims 25 to 48.
A computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method of any one of claims 25 to 48.
A computer program, characterized in that the computer program causes a computer to perform the method as claimed in any one of claims 25 to 48.