CN114731663A

CN114731663A - Data transmission method, terminal equipment and network equipment

Info

Publication number: CN114731663A
Application number: CN202080079578.4A
Authority: CN
Inventors: 吴作敏
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-02-20
Filing date: 2020-02-20
Publication date: 2022-07-08
Also published as: WO2021163967A1

Abstract

The application relates to a data transmission method, terminal equipment and network equipment. The network equipment sends first authorization information to the terminal equipment, and the terminal equipment determines a plurality of HARQ processes according to the first authorization information after receiving the first authorization information; transmitting the at least one physical channel through at least one HARQ process of the plurality of HARQ processes. By using the method and the device, a plurality of HARQ processes can be determined through one piece of first authorization information, so that the cost indicated by the number of the HARQ processes can be reduced, and the reliability of system transmission is improved.

Description

Data transmission method, terminal equipment and network equipment

Technical Field

The present application relates to the field of communications technologies, and in particular, to a data transmission method, a terminal device, and a network device.

Background

In order to improve the reliability of communication, there is a retransmission mechanism between the network device and the terminal device, including a Hybrid Automatic Repeat Request (HARQ) mechanism. Generally, the HARQ mechanism transmits and retransmits data based on a Stop-and-Wait Protocol (Stop-and-Wait Protocol), and after transmitting data each time, a transmitting end stops waiting for acknowledgement information fed back by a receiving end. The communication system uses a plurality of parallel HARQ progresses, when one HARQ progress waits for the confirmation information, the data is continuously transmitted through the other HARQ progress, and the continuous transmission of the data is realized. In a new air interface NR system of a terrestrial communication network, a Round Trip Time (RTT) of signal transmission is usually small, for example, less than 16 ms. Each uplink or downlink carrier can support a certain number of HARQ processes, and the maximum number of HARQ processes supported is typically 16.

Currently, researchers are researching Non-Terrestrial network (NTN) technology, which generally provides communication services to Terrestrial users by using satellite communication. Due to the fact that the communication distance between the terminal device and the network device (e.g., a satellite) is greatly increased, the RTT of signal transmission is greatly extended, and may be in the order of hundreds of milliseconds in a specific scenario of certain NTN, for example, for signal transmission of a geosynchronous orbit satellite, the RTT is about 250ms at most and can reach about 600ms at most, which is much larger than the RTT in a terrestrial NR system. This results in that the existing HARQ mechanism is not suitable for the NTN system, nor is it suitable for the non-NTN system, but there are other application scenarios or other systems with RTT greater than 16 ms.

Disclosure of Invention

In view of this, embodiments of the present application provide a data transmission method, which determines multiple HARQ processes through one first grant message, so as to improve data transmission efficiency of a system.

The embodiment of the application provides a data transmission method, which is applied to terminal equipment and comprises the following steps:

after receiving the first authorization information, determining a plurality of HARQ processes according to the first authorization information;

transmitting the at least one physical channel through at least one HARQ process of the plurality of HARQ processes.

The embodiment of the application provides a data transmission method, which is applied to network equipment and comprises the following steps:

and sending first authorization information to the terminal equipment, wherein the first authorization information is used for the terminal equipment to determine a plurality of HARQ processes so that the terminal equipment can transmit at least one physical channel through at least one HARQ process in the plurality of HARQ processes.

An embodiment of the present application further provides a terminal device, including:

the determining module is used for determining a plurality of HARQ processes according to the first authorization information after receiving the first authorization information;

a transmission module configured to transmit at least one physical channel through at least one HARQ process of a plurality of HARQ processes.

An embodiment of the present application further provides a network device, including:

a sending module, configured to send first grant information to a terminal device, where the first grant information is used for the terminal device to determine multiple HARQ processes, so that the terminal device can transmit at least one physical channel through at least one HARQ process of the multiple HARQ processes.

The embodiment of the present application further provides a terminal device, which includes a processor and a memory, where 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, and execute the data transmission method.

The embodiment of the present application further provides a network device, which includes a processor and a memory, where 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, and execute the above data transmission method.

The embodiment of the present application further provides a chip, where the chip includes a processor, and is configured to call and run a computer program from a memory, so that a device in which the chip is installed executes the data transmission method.

An embodiment of the present application further provides a computer-readable storage medium for storing a computer program, where the computer program enables a computer to execute the data transmission method.

An embodiment of the present application further provides a computer program product, which includes computer program instructions, where the computer program instructions enable a computer to execute the data transmission method described above.

An embodiment of the present application further provides a computer program, where the computer program enables a computer to execute the data transmission method.

According to the embodiment of the application, the terminal equipment determines the plurality of HARQ processes according to the first authorization information, can schedule the plurality of physical channels, improves the transmission efficiency of the system, can reduce the number of times of indicating the HARQ processes and the expense of indicating the HARQ processes, and improves the transmission reliability of the system.

Drawings

Fig. 1 is a schematic diagram of an application scenario of an embodiment of the present application.

Fig. 2 is a schematic diagram of a relationship between an HARQ process and RTT according to an embodiment of the present application.

Fig. 3 is a flowchart illustrating a data transmission method according to an embodiment of the present application.

Fig. 4 is a flowchart illustrating a data transmission method according to another embodiment of the present application.

Fig. 5 is a schematic diagram illustrating a first DCI indicating a plurality of downlink physical channels in an embodiment of the present application.

Fig. 6 is a schematic diagram illustrating a first DCI indicating multiple uplink physical channels according to an embodiment of the present application.

Fig. 7 is a schematic diagram of a first DCI indicating multiple TDRAs in another embodiment of the present application.

Fig. 8 is a schematic diagram of a first DCI activating a pre-configured resource in yet another embodiment of the present application.

Fig. 9 is a schematic structural block diagram of a terminal device according to an embodiment of the present application.

Fig. 10 is a schematic structural block diagram of a terminal device according to another embodiment of the present application.

Fig. 11 is a schematic block diagram of a network device according to an embodiment of the present application.

Fig. 12 is a schematic block diagram of a communication device according to an embodiment of the present application.

Fig. 13 is a schematic block diagram of a chip of an embodiment of the present application.

Fig. 14 is a schematic block diagram of a communication system of 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 drawings in the embodiments of the present application.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, an Advanced Long Term Evolution (LTE-A) System, a New Radio (NR) System, an Evolution System of an NR System, an LTE (LTE-based Access to unlicensed spectrum, an LTE-U) System, an NR (NR-based Access to unlicensed spectrum, an NR-based network (UMTS-U) System, a Non-Terrestrial communication network (UMTS-based network, UMTS) System, a UMTS-based Mobile communication System, WLAN), Wireless Fidelity (WiFi), next Generation communication (5th-Generation, 5G) system, or other communication systems.

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

Optionally, the communication system in the embodiment of the present application may be applied to a Carrier Aggregation (CA) scenario, may also be applied to a Dual Connectivity (DC) scenario, and may also be applied to an independent (SA) networking scenario.

The frequency spectrum of the application is not limited in the embodiment of the present application. For example, the embodiments of the present application may be applied to a licensed spectrum and may also be applied to an unlicensed spectrum.

The embodiments of the present application are described in conjunction with a network device and a terminal device, where: a terminal device may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, or a User Equipment, etc. The terminal device may be a Station (ST) in a WLAN, and may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, and a next generation communication system, for example, a terminal device in an NR Network or a terminal device in a future evolved Public Land Mobile Network (PLMN) Network, and the like.

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

The network device may be a device for communicating with the mobile device. The network device may be an Access Point (AP) in a WLAN, a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB, NB) in WCDMA, an evolved Node B (eNB or eNodeB) in LTE, a relay Station or an Access Point, or a vehicle-mounted device, a wearable device, and a network device (gNB) in an NR network or a network device in a PLMN network that is evolved in the future.

In the embodiment of the present application, the network device may have a mobile characteristic, for example, the network device may be a mobile device. Alternatively, the network device may be a satellite, balloon station. For example, the satellite may be a Low Earth Orbit (LEO) satellite, a Medium Earth Orbit (MEO) satellite, a geosynchronous Orbit (GEO) satellite, a High Elliptic Orbit (HEO) satellite, and the like. Alternatively, the network device may be a base station installed on land, water, or the like.

In this embodiment, a network device provides a service for a Cell (Cell), and a terminal device communicates with the network device through a transmission resource (for example, a frequency domain resource or a frequency spectrum resource) used by the Cell, where the Cell may be a Cell corresponding to the network device (for example, a base station), and the Cell may belong to a macro base station or a base station corresponding to a Small Cell (Small Cell), where the Small Cell may include: urban cells (Metro cells), Micro cells (Micro cells), Pico cells (Pico cells), Femto cells (Femto cells), and the like, wherein the small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-rate data transmission services.

Fig. 1 exemplarily shows one network device 1100 and two terminal devices 1200, and optionally, the wireless communication system 1000 may include a plurality of network devices 1100, and each network device 1100 may include other numbers of terminal devices 1200 within the coverage area thereof, which is not limited in this embodiment.

In addition, the wireless communication system 1000 may further include other network entities such as a Mobility Management Entity (MME), an Access and Mobility Management Function (AMF), and the embodiment of the present invention is not limited thereto.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" is used herein to describe the association relationship of the associated objects, for example, it means that there may be three relationships between the associated objects before and after, for example, a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" herein generally indicates a relationship in which the former and latter associated objects are "or".

To better describe the principle and the detailed description of the embodiments of the present application, the following description is provided for the related technical content of the embodiments of the present application.

In the field, a network device indicates a maximum number of HARQ processes in uplink and downlink to a terminal device through, for example, Radio Resource Control (RRC) signaling semi-static configuration. The number of downlink HARQ processes may be a default value, e.g. 8, if the network device does not provide corresponding configuration parameters. The maximum number of HARQ processes supported by each carrier in uplink may be 16. Each HARQ process corresponds to an HARQ Process Number (HPN), which is also referred to as an HARQ ID (Identity).

Fig. 2 illustrates how the number of HARQ processes and the round trip time RTT affect the throughput of data transmission by taking downlink transmission as an example. As shown in fig. 2, the maximum number of HARQ processes configured for the terminal device is 16, 16 HARQ processes include HARQ0 to HARQ15, and 16 HARQ processes can be continuously scheduled within 16 ms. After a HARQ process, such as HARQ0, is scheduled, the HARQ process HARQ0 is in a stop state during a data round trip process, and cannot be used for transmitting other data, so in a scenario where the maximum number of HARQ processes of the terminal device is 16 as shown in fig. 2, there may be the following cases:

if the RTT is less than 16ms, the terminal device can always have parallel HARQ processes (one or more of HARQ1 to HARQ 15) for data transmission when traffic data is transmitted within the RTT range after HARQ0 is scheduled; when the time after HARQ0 is scheduled exceeds RTT, HARQ0 may be used again for transmitting data. Therefore, data can be continuously transmitted on the HARQ entity consisting of HARQ0 to HARQ15 without affecting the maximum throughput of the terminal device. In addition, if RTT is equal to 16ms and the maximum number of HARQ processes configured for the terminal device is 16, it can be known that there is always a HARQ process capable of transmitting service data; however, if the maximum number of HARQ processes configured for the terminal device is less than 16, when there is traffic data to be transmitted, all HARQ processes may be in a state of waiting for feedback from the network device, and at this time, no HARQ process is available, which affects the throughput of data transmission of the terminal device.

If the RTT is much larger than 16ms, for example, the RTT in the NTN system can reach 600ms, the practical situation is as follows: all HARQ processes of the terminal equipment are in a state of not receiving feedback from the network equipment, and thus when there is service data to be transmitted, no HARQ process is available for a long time, which seriously affects the throughput of data transmission of the terminal equipment.

That is to say, in an application scenario of the NTN system or other similar scenarios, since the RTT is greatly increased, the number of HARQ processes configured by the terminal device is not matched with the system RTT, and finally the system performance is degraded.

To cope with this situation, currently, within a range allowed by the capability of the terminal device, the number of HARQ processes configured for the terminal device by the network device may exceed the maximum number of HARQ processes supported by the conventional NR system, and it is required that the number of HARQ processes of the terminal device is capable of matching with the system RTT, for example, the number of HARQ processes configured for the terminal device by the network device may be greater than 16, and may be 64. Due to the increase of the number of the HARQ processes, data packets which can be transmitted in parallel between the network equipment and the terminal equipment are increased, and the influence of the great increase of the RTT on the system performance can be reduced.

However, in practical applications, the network device needs to indicate the HARQ process number corresponding to the downlink data or the uplink data when scheduling transmission for the terminal device, if the conventional indication mechanism is still used, the indication field of the HARQ process number is not enough to indicate the HARQ process with the process number greater than 16, and the terminal device cannot be effectively scheduled in the case of large data processing requirements.

To this end, fig. 3 is a flowchart of a data transmission method according to an embodiment of the present application, applied to a terminal device, where the method includes at least some of the following:

s101: after receiving the first authorization information, determining a plurality of HARQ processes according to the first authorization information;

s102: transmitting the at least one physical channel through at least one HARQ process of the plurality of HARQ processes.

According to the data transmission method of the embodiment of the application, the terminal equipment can determine the plurality of HARQ processes according to the first authorization information, so that a plurality of physical channels can be scheduled for transmission, the transmission efficiency of the system is improved, the number of times of indicating the HARQ processes can be reduced, the number indicating overhead of the HARQ processes is reduced, and the transmission reliability of the system is improved to a certain extent.

Correspondingly, fig. 4 is a schematic flowchart of a data transmission method according to another embodiment of the present application, applied to a network device, where the method includes at least some of the following:

s201: and sending first authorization information to the terminal equipment, wherein the first authorization information is used for the terminal equipment to determine a plurality of HARQ processes so that the terminal equipment can transmit at least one physical channel through at least one HARQ process in the plurality of HARQ processes.

According to the data transmission method provided by the embodiment of the application, when the number of the HARQ processes configured by the terminal equipment is large, the network equipment can indicate a plurality of HARQ processes for the terminal equipment on the premise of not increasing the cost of the indication information, so that the physical channel is transmitted, and the data transmission efficiency of the system can be improved.

As an optional implementation, transmitting at least one physical channel through at least one HARQ process of a plurality of HARQ processes includes: and respectively transmitting a plurality of corresponding physical channels through a plurality of HARQ processes, or enabling the at least one physical channel to respectively correspond to the plurality of HARQ processes.

As an optional implementation, transmitting at least one physical channel through at least one HARQ process of a plurality of HARQ processes includes: and respectively transmitting one or more corresponding physical channels through part of the plurality of HARQ processes, or enabling the at least one physical channel to respectively correspond to part of the plurality of HARQ processes.

For example, for Downlink transmission, at least two Physical Downlink Shared Channels (PDSCHs) may be scheduled using the first grant information, where the at least two PDSCHs include a first PDSCH for transmitting a first Transport Block (TB) and a second PDSCH for transmitting a second TB, and the first PDSCH is transmitted through the first HARQ process and the second PDSCH is transmitted through the second HARQ process. By the method, the terminal equipment can prepare to receive the at least two subsequent PDSCHs after receiving the first authorization information, or can determine the reception of the at least two PDSCHs through one authorization information, so that the overhead of the first authorization information can be reduced, and the data transmission efficiency of the system can be improved.

For another example, for Uplink transmission, at least two Physical Uplink Shared Channel (PUSCH) transmissions may be scheduled using the first grant information, the at least two PUSCHs including a first PUSCH for transmitting the first TB and a second PUSCH for transmitting the second TB, the first PUSCH being transmitted through the first HARQ process, and the second PUSCH being transmitted through the second HARQ process. By the method, the terminal equipment can prepare to send at least two subsequent PUSCHs after receiving the first authorization information, or can determine the sending of at least two PUSCHs through one authorization information, so that the overhead of the authorization information can be reduced, and the data transmission efficiency of the system can be improved.

In the embodiment of the application, two HARQ process numbers corresponding to two HARQ processes in a plurality of HARQ processes are associated with each other. And associating the two HARQ process numbers with each other, wherein the first authorization information only needs to indicate one of the HARQ process numbers, and the terminal equipment can determine the other HARQ process number according to the association relationship. The process of determining the HARQ process number is described in detail below by way of several embodiments.

Optionally, determining a plurality of HARQ processes according to the first grant information includes:

and determining a first HARQ process number of a first HARQ process according to the first authorization information, wherein the first HARQ process is used for transmitting a first physical channel in the at least one physical channel.

As an optional implementation manner, the terminal device may determine a plurality of HARQ processes, and correspondingly transmit a plurality of physical channels through all HARQ processes in the plurality of HARQ processes.

As an optional implementation manner, the terminal device may determine a plurality of HARQ processes, and correspondingly transmit one or more physical channels through some HARQ processes of the plurality of HARQ processes. As an example, on an unlicensed spectrum (also referred to as an unlicensed spectrum or a shared spectrum), channel detection is required before physical channel transmission, and physical channel transmission may be performed if channel detection is successful, and physical channel transmission may not be performed if channel detection is failed, so that a situation may occur where a terminal device determines multiple HARQ processes but performs physical channel transmission using only a part of the multiple HARQ processes. As another example, in pre-configured authorized uplink transmission, the terminal device may determine multiple HARQ processes, but because the traffic load is light, the terminal device only uses a part of the multiple HARQ processes for uplink transmission.

As an optional implementation manner, the network device may directly indicate the first HARQ process number through a HARQ indication information field in the first grant information, may also indicate the first HARQ process number through time domain resource location information of the first grant information, and may also indicate the first HARQ process number through time domain resource location information of a first physical channel scheduled by the first grant information. Optionally, the first physical channel is a first physical channel of the at least one physical channel.

In the embodiment of the present application, the first HARQ process Number may also be determined according to a timeslot and/or a System Frame Number (SFN) where the resource of the first physical channel is located. As an example, the first grant Information may be carried by Downlink Control Information (DCI), and the network device activates SPS configuration resources for the terminal device through the DCI, where the first HARQ process number is not indicated by the DCI, but is determined according to a transmission timeslot of a physical channel.

In an embodiment of the present application, the multiple HARQ processes include a first HARQ process and a second HARQ process, and the terminal device determines a second HARQ process number of the second HARQ process according to the first HARQ process number of the first HARQ process.

Illustratively, the network device indicates the first HARQ process number through the HARQ indication information field in the first grant information, and the terminal device may determine the second HARQ process number according to the first HARQ process number by using an association relationship between the two HARQ process numbers. Therefore, at least two HARQ process numbers can be determined according to one-time indication, at least two physical channels are scheduled, the expense of HARQ process number indication is effectively reduced, and the transmission efficiency and reliability of the system are improved.

Optionally, the HARQ indication information field in the first grant information does not directly indicate the second HARQ process number, or the second HARQ process number does not belong to the indication range of the HARQ indication information field.

In an embodiment of the present application, the plurality of HARQ processes include a first HARQ process and a second HARQ process, where the first HARQ process corresponds to a first HARQ process number, and the second HARQ process corresponds to a second HARQ process number, and the terminal device may determine the second HARQ process number according to the first HARQ process number.

The embodiments of the present application provide various implementation manners, which are described in detail below.

In an embodiment of the present application, determining the second HARQ process number according to the first HARQ process number and the first value M includes:

second HARQ process number + j × M

Wherein j is a positive integer, and M is a positive integer greater than 1.

Here, taking M as 8 and the first HARQ process number as 0 as an example, the second HARQ process number may be 8, 16, or 24, and so on.

Optionally, j ranges from 1 to ceil (N/M) -1, N is a positive integer greater than 1, and ceil represents an rounding-up function. For example, in the case where N is 32 and M is 8, 1 ≦ j ≦ 3 may be determined according to 1 ≦ j ≦ ceil (N/M) -1.

second HARQ process number ═ first HARQ process number + k

Wherein k is a positive integer, k is less than or equal to M-1, and M is a positive integer greater than 1.

Here, taking M as 4 and the first HARQ process number as 0 as an example, the second HARQ process number may be 1,2, or 3.

In an embodiment of the present application, determining the second HARQ process number according to the first HARQ process number, the first value M, and the second value N includes:

second HARQ process number mod (first HARQ process number + j × M, N)

Wherein j is a positive integer, M is a positive integer greater than 1, and N is a positive integer greater than 1.

Here, taking M-8, N-32, and the first HARQ process number 0 as an example, the second HARQ process number may be 8, 16, or 24.

Optionally, j ranges from 1 to ceil (N/M) -1, ceil representing the ceiling function. For example, in the case where N is 32 and M is 8, 1 ≦ j ≦ 3 may be determined according to 1 ≦ j ≦ ceil (N/M) -1.

second HARQ process number mod (first HARQ process number + k, N)

Wherein k is a positive integer, k is less than or equal to M-1, M is a positive integer greater than 1, and N is a positive integer greater than 1.

Here, taking M4, N32, and the first HARQ process number 30 as an example, the second HARQ process number may be 31, 0, or 1.

In the embodiment of the application, the plurality of HARQ processes include a first HARQ process and other HARQ processes except the first HARQ process, and the first HARQ process corresponds to the first HARQ process number. The embodiment of the present application may determine other HARQ process numbers by using the first HARQ process number, and various optional embodiments are given below.

In an embodiment of the present application, the terminal device may determine the process numbers of other HARQ processes according to the first HARQ process number and the first value M.

Optionally, determining the process numbers of other HARQ processes according to the first HARQ process number and the first value M includes:

the process number of the other HARQ process is the first HARQ process number + j × M,

wherein, the value range of j is 1 to P, and P represents the number of other HARQ processes.

Optionally, P is less than or equal to ceil (N/M) -1, N represents the number of configured HARQ processes, mod represents the modulo operation, and ceil represents the rounding-up function.

Specifically, the terminal device may sequentially take j to 1,2, and … P, and respectively calculate HARQ process numbers of the (1 st to P th) HARQ processes in the other processes.

For example, if N is 32 and M is 8, P may be 3, and the process number of the first HARQ process and the process numbers of the 3 other HARQ processes may be determined according to the first grant information. When the first HARQ process number is 1,2, and 3 are j, respectively, and the process numbers of 3 other HARQ processes can be calculated as 9, 17, and 25.

In an embodiment of the present application, the terminal device may determine the process numbers of other HARQ processes according to the first HARQ process number, the first value M, and the second value N.

Optionally, determining the process numbers of other HARQ processes according to the first HARQ process number, the first value M, and the second value N includes:

the process number of the other HARQ process is mod (first HARQ process number + j × M, N),

wherein, the value range of j is 1 to P, P represents the number of other HARQ processes, P is less than or equal to ceil (N/M) -1, mod represents modulo operation, ceil represents an upward rounding function.

Specifically, the terminal device may sequentially take j equal to 1,2, … P, and respectively calculate the HARQ process number of each (1 st to P th) HARQ process in the other processes.

For example, if N is 32 and M is 8, P may be 3, and the process numbers of the first HARQ process and the 3 other HARQ processes may be determined according to the first grant information. When the first HARQ process number is 1,2, and 3 are j, respectively, and the process numbers of 3 other HARQ processes can be calculated as 9, 17, and 25.

In the above embodiment of the present application, N HARQ process numbers are divided into M groups, the first authorization information indicates the smallest value in each group of HARQ process numbers, and then other HARQ process numbers in the group can be calculated.

Optionally, in the above embodiments of the present application, the first value M may be determined according to at least one of the following parameters:

the maximum value of the first HARQ process number;

the candidate number of the first HARQ process;

the maximum candidate number of the first HARQ process;

the first HARQ process number indicated by the index is consecutive, for example, if the index is indicated as i, the process number is i, where i is an integer greater than or equal to 0. Or, the value of the first HARQ process number indicated by the HARQ indication information field is continuous. For example, if the number of candidates of the first HARQ process is 8, or the maximum number of candidates of the first HARQ process is 8, the first HARQ process number may be one of 0 to 7, or the maximum value of the first HARQ process number is 7.

Optionally, the first value M is the maximum value of the first HARQ process number plus 1, or the first value M is the candidate number of the first HARQ process, or the first value M is the maximum candidate number of the first HARQ process.

In an embodiment of the present application, determining the process numbers of other HARQ processes according to the first HARQ process number and the first value M includes:

process number of other HARQ process is first HARQ process number + k

Wherein, the value range of k is 1 to P, P represents the number of other HARQ processes, P is less than or equal to M-1, and mod represents the modular operation.

Specifically, the terminal device may sequentially set j to 1,2, and … … P, and respectively calculate the HARQ process number of each (1 st to P th) HARQ process in the other processes.

For example, if M is 4, P may be 3, and the process number of the first HARQ process and the process numbers of 3 other HARQ processes may be determined according to the first grant information. In the case of the first HARQ process number 4, taking values of 1,2 and 3 as j, 3 other HARQ process numbers 5, 6 and 7 can be calculated.

In an embodiment of the present application, determining the process numbers of other HARQ processes according to the first HARQ process number, the first value M, and the second value N includes:

process number of other HARQ process mod (first HARQ process number + k, N)

Specifically, the terminal device may sequentially set j to 1,2, and … … P, and respectively calculate HARQ process numbers of the (1 st to P th) HARQ processes in the other processes.

For example, if N is 32 and M is 4, P may be 3, and the process numbers of the first HARQ process and the 3 other HARQ processes may be determined according to the first grant information. In the case of the first HARQ process number 4, taking values of 1,2 and 3 as j, 3 other HARQ process numbers 5, 6 and 7 can be calculated.

The foregoing embodiments of the present application divide N HARQ process numbers into multiple groups, where each group includes, for example, M HARQ process numbers, the first grant information may indicate the smallest value in each group of HARQ process numbers, and then other HARQ process numbers in the group may be calculated.

Based on the foregoing embodiments, it can be seen that, in the embodiments of the present application, two, three, four, or more HARQ process numbers can be further determined based on one HARQ process number and a predetermined association relationship, not only is there no need to expand overhead of authorization information, but also one authorization information can be used as a terminal device to indicate multiple HARQ process numbers for transmitting multiple physical channels, so that the data transmission efficiency of the system is high, and the terminal device can be effectively scheduled in a large data volume application scenario.

the number of physical channels included in the at least one physical channel;

the maximum number of physical channels included in the at least one physical channel;

the number of HARQ processes included in the plurality of HARQ processes;

a maximum number of HARQ processes included in the plurality of HARQ processes.

Optionally, the first HARQ process number indicated by the index is discontinuous, e.g. the index is indicated as i, and the process number is i × M. That is, the value of the first HARQ process number indicated by the HARQ indication information field is discontinuous and is i × M.

Optionally, the first value M is a number of physical channels included in the at least one physical channel, or the first value M is a maximum number of physical channels included in the at least one physical channel, or the first value M is a number of HARQ processes included in the plurality of HARQ processes, or the first value M is a maximum number of HARQ processes included in the plurality of HARQ processes.

In the embodiment of the present application, the second value N is preset or determined according to the configuration parameters of the network device.

Optionally, the second value N is determined by at least one of the following parameters:

maximum value of HARQ process number configured by the terminal device;

the number of HARQ processes configured for the terminal equipment;

the maximum number of HARQ processes supported by the terminal device.

Optionally, since the HARQ process number is usually marked from 0, the specific value of the second value N is +1, which is the maximum value of the HARQ process number configured by the terminal device. For example, the number of HARQ processes configured by the terminal device is 0 to 15, that is, the number of HARQ processes configured by the terminal device or the maximum number of HARQ processes supported by the terminal device is 16, and N is 16. Or, if the number of HARQ processes configured for the terminal device is 16, the maximum value of the HARQ process numbers configured for the terminal device is 15.

Optionally, the number of HARQ processes configured by the terminal device includes: if the terminal equipment is provided with configuration parameters such as RRC signaling for indicating the number of the HARQ processes, determining the number of the HARQ processes configured by the terminal equipment according to the RRC signaling; or, if the terminal device is not provided with the configuration parameter for indicating the number of HARQ processes, the number of HARQ processes configured for the terminal device is determined according to a default value or a preset value.

Optionally, the second value N is the number of HARQ processes configured by the terminal device, or the second value N is the maximum number of HARQ processes supported by the terminal device.

In the embodiment of the present application, the first value M is preset or determined according to configuration parameters of the network device.

According to various embodiments, the first value M may be determined by at least one of the following parameters:

maximum value of the first HARQ process number;

the candidate number of the first HARQ process;

the maximum candidate number of the first HARQ process;

the number of physical channels included in at least one physical channel;

the number of HARQ processes included in the plurality of HARQ processes;

the maximum number of HARQ processes included in the plurality of HARQ processes.

Similarly, since the HARQ process number is usually marked from 0, the specific value of the first value M is +1, which is the maximum value of the first HARQ process number.

In the embodiment of the present application, the network device configures, through RRC signaling, the maximum number (for example, 64) of HARQ processes for the terminal device, and the number of physical channels actually transmitted or the number of HARQ processes is indicated by DCI carrying the first grant information.

In an embodiment of the present application, the first grant information includes first indication information, the first indication information is used to determine the number of physical channels included in at least one physical channel or the number of HARQ processes included in a plurality of HARQ processes, and the first value M is determined by the first indication information. Here, the first indication information may adopt Time Domain Resource Allocation (TDRA) indication information in the first grant information. For example, the TDRA indication information indicates M pieces of TDRA information, or the maximum number of TDRA information that the TDRA indication information can indicate is M.

In one embodiment of the present application, the first grant information may be used to schedule transmission of at least one physical channel; in another embodiment, the first grant information may be used to activate a plurality of pre-configured resources for transmitting the at least one physical channel. Wherein the at least one physical channel respectively corresponds to at least one HARQ process among the plurality of HARQ processes.

For example, the first grant information is used to activate a preconfigured uplink preconfigured grant CG resource and/or a downlink semi-persistent scheduling SPS resource.

Optionally, the data transmission method according to the embodiment of the present application is applied to uplink transmission, and the at least one physical channel includes at least two physical uplink shared channels PUSCH.

Optionally, the plurality of pre-configured resources belong to the same configured authorized CG resource configuration or belong to different CG resource configurations.

Optionally, the plurality of pre-configured resources belong to the same SPS PUSCH resource configuration or to different SPS PUSCH resource configurations.

Optionally, the data transmission method according to the embodiment of the present application is applied to downlink transmission, where the at least one physical channel includes at least two physical downlink shared channels PDSCH.

Optionally, the plurality of pre-configured resources belong to the same SPS resource configuration or to different SPS resource configurations. Alternatively, the plurality of pre-configured resources belong to the same SPS PDSCH resource configuration or to different SPS PDSCH resource configurations.

Optionally, the first authorization information is carried by DCI, RRC, and/or a Media Access Control-Control Element (MAC CE).

Optionally, the terminal device may report to the network device whether or not the increase of the number of HARQ processes is supported, and/or the enhanced number of HARQ processes is supported, and/or the maximum number of HARQ processes is supported, and/or the range of the number of HARQ processes is supported.

Optionally, the retransmission scheduling may use one DCI to schedule one physical channel, or may use one DCI to schedule a plurality of physical channels.

Optionally, the method of the embodiment of the present application may be applied to new transmission scheduling and/or retransmission scheduling. Wherein, newly transmitted scheduling refers to: the TB transmitted in the physical channel is a new transmission. The retransmission scheduling refers to: the TBs transmitted in the physical channel are retransmissions.

The data transmission method of the embodiment of the application supports scheduling of multiple physical channels by using one piece of authorization information (e.g., DCI), where the multiple physical channels are used to transmit different TBs, and HARQ process numbers in the multiple physical channels have an association relationship, so that a network device only needs to indicate the HARQ process number of one HARQ process in the multiple physical channels, and a terminal device can determine the HARQ process number corresponding to each physical channel in the multiple physical channels. By the embodiment of the application, the data transmission efficiency of an NTN system can be improved under the condition of reducing the overhead of authorization information.

The following describes in detail the implementation process of the data transmission method according to the embodiment of the present application by using a plurality of specific examples.

Example one

In this embodiment, first authorization information is carried by first DCI, and a terminal device receives the first DCI sent by a network device, determines a first HARQ process number of a first HARQ process according to first indication information in the first DCI, specifically, the first indication information is 3-bit information of an HARQ process indication field;

secondly, determining that a first value M is 8 according to the candidate number of the configured first HARQ processes of the terminal equipment being 8; and determining that the second value N is 32 according to the number of the configured HARQ processes of the terminal equipment being 32;

thirdly, according to the first HARQ process number, the first numerical value M and the second numerical value N determined above, according to at least one calculation method provided in the embodiment of the present application, the process numbers of other HARQ processes may be determined.

In this embodiment, the first DCI schedules 4 physical channels (i.e., a first physical channel, a second physical channel, a third physical channel, and a fourth physical channel), and after obtaining the first HARQ process number, may determine the process numbers of HARQ processes corresponding to other physical channels according to the first HARQ process number.

Table 1 schematically shows 8 first indication information, and 8 first HARQ process numbers may be determined.

Taking the first action as an example, the first HARQ process number is "HARQ 0" as determined by the first indication information "000".

First indication information	First physical channel	Second physical channel	Third physical channel	Fourth physical channel
000	HARQ 0	HARQ 8	HARQ 16	HARQ 24

001	HARQ 1	HARQ 9	HARQ 17	HARQ 25
010	HARQ 2	HARQ 10	HARQ 18	HARQ 26
011	HARQ 3	HARQ 11	HARQ 19	HARQ 27
100	HARQ 4	HARQ 12	HARQ 20	HARQ 28
101	HARQ 5	HARQ 13	HARQ 21	HARQ 29
110	HARQ 6	HARQ 14	HARQ 22	HARQ 30
111	HARQ 7	HARQ 15	HARQ 23	HARQ 31

TABLE 1

Then, the process numbers of other HARQ processes are calculated using the following calculation:

process number of other HARQ process mod (first HARQ process number + j × M, N)

Wherein j is more than or equal to 1 and less than or equal to ceil (N/M) -1.

Specifically, as an example, in the case that the first HARQ process number is 0, j may be calculated to take 1,2, and 3, and further, the process numbers of other HARQ processes may be calculated according to the above formula, so that: the second HARQ process number is 8, the third HARQ process number is 16, and the fourth HARQ process number is 24.

Finally, the terminal device can transmit 4 scheduled physical channels through 4 HARQ processes corresponding to the 4 HARQ process numbers.

Example two

In a second embodiment of the present application, similar to the first embodiment, the first grant information is carried by the first DCI, and the first indication information includes HARQ process number indication information with 3 bits, which is used to indicate the first HARQ process number.

The difference from the first embodiment is that the first value M is determined according to the maximum number of physical channels included in the at least one physical channel, where M is 4; the number of HARQ processes configured for the terminal device is 32, and the second value N is 32.

In this embodiment, the first DCI schedules 4 physical channels, and after obtaining the first HARQ process number, the process numbers of HARQ processes corresponding to other physical channels may be determined according to the first HARQ process number.

Table 2 schematically shows 8 first indication information, and 8 first HARQ process numbers may be determined.

Taking the fourth row as an example, the first HARQ process number "HARQ 12" can be determined from the first indication information "011".

First indication information	First physical channel	Second physical channel	Third physical channel	Fourth physical channel
000	HARQ 0	HARQ 1	HARQ 2	HARQ 3
001	HARQ 4	HARQ 5	HARQ 6	HARQ 7
010	HARQ 8	HARQ 9	HARQ 10	HARQ 11
011	HARQ 12	HARQ 13	HARQ 14	HARQ 15
100	HARQ 16	HARQ 17	HARQ 18	HARQ 19
101	HARQ 20	HARQ 21	HARQ 22	HARQ 23
110	HARQ 24	HARQ 25	HARQ 26	HARQ 27
111	HARQ 28	HARQ 29	HARQ 30	HARQ 31

TABLE 2

process number of other HARQ process mod (first HARQ process number + k, N)

Wherein j is more than or equal to 1 and less than or equal to M-1.

Specifically, under the condition that the first HARQ process number is 12, j can be calculated to take 1,2 and 3, and further the process numbers of other HARQ processes can be calculated according to the above formula, so that: the second HARQ process number is 13, the third HARQ process number is 14, and the fourth HARQ process number is 15.

By using the first and second embodiments of the present application, 4 HRAQ processes are substantially indicated by one authorization message, 4 physical channels can be scheduled, thereby improving system transmission efficiency, and when the number of HARQ processes configured for a terminal device is large, information overhead can be effectively reduced, and reliability of system transmission can be improved.

EXAMPLE III

In the third embodiment of the present application, a network device sends first authorization information to a terminal device, where the first authorization information is carried by first DCI, and the terminal device determines multiple HARQ processes according to the first DCI, and transmits multiple corresponding physical channels through the multiple HARQ processes, respectively. The network device configures or determines the number of physical channels included in the plurality of physical channels through a high-level parameter, for example, RRC signaling.

In this embodiment, the network device configures the number N of time slots scheduled by the first DCI, where the first DCI is used to determine transmission of at least two physical channels (for example, the first DCI schedules the transmission of the at least two physical channels), which specifically includes the following exemplary manners:

the first DCI includes second indication information for determining a time domain resource location of a first physical channel transmitted on a first slot.

Optionally, the second indication information is TDRA indication information.

Optionally, the second indication information indicates a start position and a length of the first physical channel.

In this embodiment, the number N of time slots scheduled by the first DCI may be determined according to a higher layer parameter, for example, RRC signaling.

Optionally, a first time slot of the N time slots is according to a configuration parameter orThe preset value is determined. For example, the first physical channel is the PUSCH and the first slot is according to the parameter K2 and/or K_offsetAnd (4) determining. As another example, the first physical channel is PDSCH, and the first time slot is determined according to the parameter K0. Alternatively, K_offsetIs determined based on the RTT.

Optionally, the N time slots are consecutive N time slots.

Optionally, at least two of the N time slots are correlated with each other.

In this embodiment, the time domain resource location for transmitting each physical channel on each of the N time slots is the same. Therefore, the time domain resource positions of the plurality of physical channels can be obtained by using the time domain resource position of the first physical channel transmitted on the first time slot and the number N of the time slots.

As shown in fig. 5, a terminal device is scheduled by a first DCI to receive a downlink physical channel, the first DCI indicates a time domain resource location of a first physical channel PDSCH1, and the terminal device may determine a time domain resource location of a second physical channel PDSCH2, a time domain resource location of a third physical channel PDSCH3, and a time domain resource location of a fourth physical channel PDSCH4 according to the time domain resource location of the first physical channel PDSCH 1. PDSCH1, PDSCH2, PDSCH3, and PDSCH4 are transmitted through the first HARQ process, the second HARQ process, the third HARQ process, and the fourth HARQ process, respectively.

As shown in fig. 6, the terminal device is scheduled by the first DCI to transmit the uplink physical channel, the first DCI indicates the time domain resource location of the first physical channel PUSCH1, and the terminal device may determine the time domain resource location of the second physical channel PUSCH2, the time domain resource location of the third physical channel PUSCH3, and the time domain resource location of the fourth physical channel PUSCH4 according to the time domain resource location of the first physical channel PUSCH 1. PUSCH1, PUSCH2, PUSCH3, and PUSCH4 are transmitted through the first HARQ process, the second HARQ process, the third HARQ process, and the fourth HARQ process, respectively.

Example four

A difference between the fourth embodiment and the third embodiment of the present application is that the network device in the fourth embodiment configures the maximum number of physical channels scheduled by the first DCI, and in this case, the first DCI is used to determine transmission of at least two physical channels (for example, the first DCI schedules transmission of at least two physical channels), which specifically includes the following exemplary manners:

the first DCI comprises second indication information, and the second indication information is used for determining a time domain resource position of at least one physical channel.

For example, the network device configures a TDRA table through a high-level parameter, where each row in the TDRA table corresponds to time domain resource allocation information of at least one physical channel, the second indication information is used to indicate a row in the TDRA table, and table 3 schematically shows the second indication information and the TDRA, where the maximum number of the scheduled TDRAs corresponding to the row where the second indication information "00" is located is 4. The terminal device may determine time domain resource allocation information of the at least one physical channel according to the second indication information.

Second indication information	TDRA
00	TDRA 0
01	TDRA 1、TDRA 2
10	TDRA 1、TDRA 2、TDRA 3
11	TDRA 1、TDRA 2、TDRA 3、TDRA 4

TABLE 3

In this embodiment, the relative position between the time domain resource allocations of each of the at least one physical channel may be determined according to the second indication information.

In this embodiment, a first physical channel of the at least one physical channel is determined according to a configuration parameter or a preset value. For example, the physical channel is the PUSCH, and the first physical channel is according to the parameters K2 and/or K_offsetAnd (4) determining. As another example, the physical channel is PDSCH, and the first physical channel is determined according to the parameter K0. Alternatively, K_offsetIs determined from the RTT.

As shown in fig. 7, the first DCI includes second indication information specifying a row in a TDRA table (e.g., row 4 in table 3), which may indicate a time domain resource location of PDSCH1, a time domain resource location of PDSCH2, a time domain resource location of PDSCH3, and a time domain resource location of PDSCH 4. PDSCH1, PDSCH2, PDSCH3, and PDSCH4 are transmitted through the first HARQ process, the second HARQ process, the third HARQ process, and the fourth HARQ process, respectively.

EXAMPLE five

A difference between the fifth embodiment and the third embodiment is that in the fifth embodiment, the multiple resources used for transmitting the multiple physical channels are pre-configured resources of the network device, and the first DCI is used to activate the pre-configured resources. The pre-configured resource may be used for downlink transmission or uplink transmission.

As shown in fig. 8, the first DCI includes a preconfigured resource activation command, and the preconfigured resource 1, the preconfigured resource 2, the preconfigured resource 3, and the preconfigured resource 4 may be activated and transmitted through a first HARQ process, a second HARQ process, a third HARQ process, and a fourth HARQ process, respectively.

Optionally, the plurality of preconfigured resources are preconfigured resources on consecutive time slots.

Optionally, the plurality of preconfigured resources are consecutive preconfigured resources.

Optionally, the plurality of resources for transmitting the plurality of physical channels belong to the same pre-configured resource configuration.

Optionally, the plurality of resources for transmitting the plurality of physical channels belong to different pre-configured resource configurations.

Corresponding to at least one method applied to the terminal device, the embodiment of the application further provides one or more terminal devices. The terminal device of the embodiment of the application can implement any one implementation manner of the above methods.

Referring to fig. 9, an embodiment of the present application provides a terminal device 100, which includes:

a determining module, such as the HARQ process determining module 110, configured to determine, after receiving the first grant information, a plurality of HARQ processes according to the first grant information;

a transmission module, such as physical channel transmission module 120, is configured to transmit at least one physical channel through at least one HARQ process of the plurality of HARQ processes.

Optionally, in this embodiment of the present application, for uplink transmission, the transmission module may be a sending module; for downlink transmission, the transmission module may be a receiving module.

Alternatively, referring to fig. 10, the HARQ process determining module 110 includes:

a first HARQ process determining unit 111, configured to determine a first HARQ process number of a first HARQ process according to the first grant information, where the first HARQ process is used to transmit a first physical channel of the at least one physical channel.

Optionally, the first HARQ process determining unit 111 is configured to:

determining a first HARQ process number according to the HARQ indication information domain in the first authorization information; or,

determining a first HARQ process number according to the time domain resource position information transmitted by the first authorization information; or,

and determining the first HARQ process number according to the time domain resource position information transmitted by the first physical channel.

Optionally, the plurality of HARQ processes includes a first HARQ process and a second HARQ process.

Referring to fig. 10, the HARQ process determining module 110 includes:

a second HARQ process determining unit 112, configured to determine a second HARQ process number of a second HARQ process according to the first HARQ process number of the first HARQ process.

Optionally, the plurality of HARQ processes include a first HARQ process and a second HARQ process, where the first HARQ process corresponds to a first HARQ process number, and the second HARQ process corresponds to a second HARQ process number.

Optionally, the second HARQ process determining unit 112 is configured to determine the second HARQ process number according to the first HARQ process number and the first value M.

Optionally, the plurality of HARQ processes include a first HARQ process and other HARQ processes except the first HARQ process, and the first HARQ process corresponds to the first HARQ process number.

Optionally, the HARQ process determining module 110 includes:

a further HARQ process determining unit 113, configured to determine a process number of another HARQ process according to the first HARQ process number, the first numerical value M, and the second numerical value N.

On the other hand, corresponding to at least one method applied to the embodiment of the network device, the embodiment of the application also provides one or more network devices. The network device of the embodiment of the present application may implement any implementation manner of the foregoing method.

Referring to fig. 11, an embodiment of the present application provides a network device 200, referring to fig. 11, including:

a sending module, for example, the grant information sending module 210, is configured to send, to the terminal device, first grant information, where the first grant information is used by the terminal device to determine multiple HARQ processes, so that the terminal device can transmit at least one physical channel through at least one HARQ process of the multiple HARQ processes.

Fig. 12 is a schematic block diagram of a communication device 600 according to an embodiment of the present application, where the communication device 600 includes a processor 610, and the processor 610 may call and execute a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, the communication device 600 may also include a memory 620. From the memory 620, the processor 610 may call and run a computer program to implement the method in the embodiment of the present application.

The memory 620 may be a separate device from the processor 610, or may be integrated into the processor 610.

Optionally, the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 630 may include a transmitter and a receiver, among others. The transceiver 630 may further include one or more antennas.

Optionally, the communication device 600 may be a network device in this embodiment, and the communication device 600 may implement a corresponding process implemented by the network device in each method in this embodiment, which is not described herein again for brevity.

Optionally, the communication device 600 may be a terminal device in this embodiment, and the communication device 600 may implement a corresponding process implemented by the terminal device in each method in this embodiment, which is not described herein again for brevity.

Fig. 13 is a schematic block diagram of a chip 700 according to an embodiment of the present application, where the chip 700 includes a processor 710, and the processor 710 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, chip 700 may also include memory 720. From the memory 720, the processor 710 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 720 may be a separate device from the processor 710 or may be integrated into 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 in particular, may obtain information or data transmitted by other devices or chips.

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

Optionally, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the chip may be applied to the terminal device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the terminal device in each method in the embodiment of the present application, and for brevity, details are not described here again.

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

The aforementioned processors may be general purpose processors, Digital Signal Processors (DSPs), Field Programmable Gate Arrays (FPGAs), Application Specific Integrated Circuits (ASICs), or other programmable logic devices, transistor logic devices, discrete hardware components, etc. The general purpose processor mentioned above may be a microprocessor or any conventional processor etc.

The above-mentioned memories may be either volatile or nonvolatile memories, or may include both volatile and nonvolatile memories. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM).

It should be understood that the above memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present application may also be Static Random Access Memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM, ESDRAM), Synchronous Link DRAM (SLDRAM), Direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

Fig. 14 is a schematic block diagram of a communication system 800 according to an embodiment of the present application, the communication system 800 comprising a terminal device 810 and a network device 820.

Network device 820 sends first grant information to terminal device 810, the first grant information being used for terminal device 810 to determine a plurality of HARQ processes to enable terminal device 810 to transmit at least one physical channel through at least one HARQ process of the plurality of HARQ processes.

After receiving the first authorization information, the terminal device 810 determines a plurality of HARQ processes according to the first authorization information; transmitting the at least one physical channel through at least one HARQ process of the plurality of HARQ processes.

The terminal device 810 may be configured to implement the corresponding functions implemented by the terminal device in the foregoing methods, and the network device 820 may be configured to implement the corresponding functions implemented by the network device in the foregoing methods. For brevity, no further description is provided herein.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that includes one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy Disk, a hard Disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.

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

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

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

Claims

A data transmission method is applied to terminal equipment, and the method comprises the following steps:

after receiving first authorization information, determining a plurality of HARQ processes according to the first authorization information;

transmitting at least one physical channel through at least one of the plurality of HARQ processes.
The method of claim 1, wherein two HARQ process numbers corresponding to two of the plurality of HARQ processes are correlated.
The method of claim 1 or 2, wherein the determining a plurality of HARQ processes according to the first grant information comprises:

and determining a first HARQ process number of a first HARQ process according to the first authorization information, wherein the first HARQ process is used for transmitting a first physical channel in the at least one physical channel.
The method of claim 3, wherein the determining a first HARQ process number for a first HARQ process according to the first grant information comprises:

determining the first HARQ process number according to the HARQ indication information domain in the first authorization information; or,

determining the first HARQ process number according to the time domain resource position information transmitted by the first authorization information; or,

and determining the first HARQ process number according to the time domain resource position information transmitted by the first physical channel.
The method of claim 3 or 4, wherein the first physical channel is a first one of the at least one physical channel.
The method of any of claims 1-5, wherein the plurality of HARQ processes includes a first HARQ process and a second HARQ process;

the determining a plurality of HARQ processes according to the first authorization information includes:

and determining a second HARQ process number of the second HARQ process according to the first HARQ process number of the first HARQ process.
The method of any of claims 1-6, wherein the plurality of HARQ processes includes a first HARQ process and a second HARQ process, the first HARQ process corresponding to a first HARQ process number and the second HARQ process corresponding to a second HARQ process number; the determining a plurality of HARQ processes according to the first authorization information includes:

and determining the second HARQ process number according to the first HARQ process number and the first numerical value M.
The method of claim 7, wherein the determining the second HARQ process number according to the first HARQ process number and the first value M comprises:

the second HARQ process number is the first HARQ process number + j × M,

wherein j is a positive integer, and M is a positive integer greater than 1.
The method of claim 7, wherein the determining the second HARQ process number according to the first HARQ process number and the first value M comprises:

a second HARQ process number + k said first HARQ process number,

wherein k is a positive integer, k is less than or equal to M-1, and M is a positive integer greater than 1.
The method of any of claims 1-6, wherein the plurality of HARQ processes includes a first HARQ process and other HARQ processes other than the first HARQ process, the first HARQ process corresponding to a first HARQ process number;

the determining a plurality of HARQ processes according to the first authorization information includes:

and determining the process numbers of other HARQ processes according to the first HARQ process number, the first numerical value M and the second numerical value N.
The method of claim 10, wherein the determining the process numbers of the other HARQ processes according to the first HARQ process number, the first value M, and the second value N comprises:

the process number of the other HARQ process is mod (first HARQ process number + j × M, N),

wherein j is less than or equal to P, j is greater than or equal to 1, P represents the number of the other HARQ processes, P is less than or equal to ceil (N/M) -1, mod represents a modulo operation, and ceil represents an rounding-up function.
The method of claim 10, wherein the determining the process numbers of the other HARQ processes according to the first HARQ process number, the first value M, and the second value N comprises:

the process number of the other HARQ process is mod (first HARQ process number + k, N),

wherein k is less than or equal to P, and k is greater than or equal to 1, P represents the number of the other HARQ processes, P is less than or equal to M-1, and mod represents the modulo operation.
The method of any one of claims 10-12,

the second value N is preset; or,

the second value N is determined according to configuration parameters of the network device.
The method according to any of claims 10-13, wherein the second value N is determined by at least one of the following parameters:

the maximum value of the configured HARQ process number of the terminal equipment;

the number of HARQ processes configured for the terminal device;

the maximum number of HARQ processes supported by the terminal device.
The method of any one of claims 7-14,

the first value M is preset; or,

the first value M is determined according to configuration parameters of the network device.
The method according to any of claims 7-15, wherein the first value M is determined by at least one of the following parameters:

the maximum value of the first HARQ process number;

the candidate number of the first HARQ process;

the maximum candidate number of the first HARQ process;

the number of physical channels included in the at least one physical channel;

the maximum number of physical channels included in the at least one physical channel;

the number of HARQ processes included in the plurality of HARQ processes;

a maximum number of HARQ processes included in the plurality of HARQ processes.
The method according to any of claims 7-16, wherein the first grant information comprises first indication information for determining the number of physical channels comprised by the at least one physical channel or the number of HARQ processes comprised by the plurality of HARQ processes, the first value M being determined by the first indication information.
The method of claim 17, wherein the first indication information comprises time domain resource allocation, TDRA, indication information in the first grant information.
The method of any one of claims 1-18,

the first grant information is used to schedule transmission of the at least one physical channel; or,

the first grant information is for activating a plurality of pre-configured resources for transmitting the at least one physical channel.
The method of claim 19, wherein the method is applied to uplink transmission, and the at least one physical channel comprises at least two physical uplink shared channels, PUSCHs.
The method of claim 19 or 20,

the plurality of pre-configured resources belong to the same pre-configured authorized CG resource configuration; or,

the plurality of pre-configured resources belong to different CG resource configurations.
The method of claim 19, wherein the method is applied to downlink transmission, and the at least one physical channel comprises at least two Physical Downlink Shared Channels (PDSCHs).
The method of claim 19 or 22,

the plurality of pre-configured resources belong to the same semi-persistent scheduling (SPS) resource configuration; or,

the plurality of pre-configured resources belong to different SPS resource configurations.
The method of any one of claims 1-23,

the first authorization information is carried by at least one of the following information: downlink control information DCI, radio resource control RRC and a media access control layer control unit MAC CE.
A data transmission method, an application and a network device, the method comprising:

sending first authorization information to a terminal device, wherein the first authorization information is used for the terminal device to determine a plurality of HARQ processes, so that the terminal device can transmit at least one physical channel through at least one HARQ process of the plurality of HARQ processes.
The method of claim 25, wherein two HARQ process numbers corresponding to two of the plurality of HARQ processes are correlated.
The method of claim 25 or 26, wherein the first grant information is used to determine a first HARQ process number for a first HARQ process used to transmit a first physical channel of the at least one physical channel.
The method of claim 27, wherein,

a HARQ indication information field in the first authorization information is used for determining the first HARQ process number; or,

the time domain resource location information transmitted by the first grant information is used for determining the first HARQ process number; or,

and the time domain resource location information transmitted by the first physical channel is used for determining the first HARQ process number.
The method of claim 27 or 28, wherein the first physical channel is a first one of the at least one physical channel.
The method of any one of claims 25-29, wherein the plurality of HARQ processes comprises a first HARQ process and a second HARQ process;

and the first HARQ process number of the first HARQ process is used for determining a second HARQ process number of the second HARQ process.
The method of any one of claims 25-30,

the plurality of HARQ processes comprise a first HARQ process and a second HARQ process, wherein the first HARQ process corresponds to a first HARQ process number, and the second HARQ process corresponds to a second HARQ process number;

the first HARQ process number and the first value M are used to determine the second HARQ process number.
The method of claim 31, wherein,

the second HARQ process number is the first HARQ process number + j × M,

wherein j is a positive integer and M is a positive integer greater than 1.
The method of claim 31, wherein,

a second HARQ process number + k said first HARQ process number,

wherein k is a positive integer, k is less than or equal to M-1, and M is a positive integer greater than 1.
The method of any one of claims 25-30,

the plurality of HARQ processes comprise a first HARQ process and other HARQ processes except the first HARQ process, and the first HARQ process corresponds to a first HARQ process number;

the first HARQ process number, the first value M, and the second value N are used to determine the process numbers of the other HARQ processes.
The method of claim 34, wherein,

the process number of the other HARQ process is mod (first HARQ process number + j × M, N),

wherein j is less than or equal to P, j is greater than or equal to 1, P represents the number of the other HARQ processes, P is less than or equal to ceil (N/M) -1, mod represents a modulo operation, and ceil represents an rounding-up function.
The method of claim 34, wherein,

the process number of the other HARQ process is mod (first HARQ process number + k, N),

wherein k is less than or equal to P, and k is greater than or equal to 1, P represents the number of the other HARQ processes, P is less than or equal to M-1, and mod represents the modulo operation.
The method of any one of claims 34-36,

the second value N is preset; or,

the second value N is determined according to configuration parameters of the network device.
The method according to any of claims 34-37, wherein the second value N is determined by at least one of the following parameters:

the maximum value of the configured HARQ process number of the terminal equipment;

the number of HARQ processes configured for the terminal device;

the maximum number of HARQ processes supported by the terminal device.
The method of any one of claims 31-38,

the first value M is preset; or,

the first value M is determined according to configuration parameters of the network device.
The method according to any of claims 31-39, wherein the first value M is determined by at least one of the following parameters:

the maximum value of the first HARQ process number;

the candidate number of the first HARQ process;

the maximum candidate number of the first HARQ process;

the number of physical channels included in the at least one physical channel;

the maximum number of physical channels included in the at least one physical channel;

the number of HARQ processes included in the plurality of HARQ processes;

a maximum number of HARQ processes included in the plurality of HARQ processes.
The method according to any of claims 31-40, wherein the first grant information comprises first indication information for determining the number of physical channels comprised by the at least one physical channel or the number of HARQ processes comprised by the plurality of HARQ processes, the first value M being determined by the first indication information.
The method of claim 41, wherein the first indication information comprises Time Domain Resource Allocation (TDRA) indication information in the first grant information.
The method of any one of claims 25-42,

the first grant information is used to schedule transmission of the at least one physical channel; or,

the first grant information is for activating a plurality of pre-configured resources for transmitting the at least one physical channel.
The method of claim 43, wherein the method is applied to uplink transmission and the at least one physical channel comprises at least two Physical Uplink Shared Channels (PUSCHs).
The method of claim 43 or 44,

the plurality of pre-configured resources belong to the same CG resource configuration; or,

the plurality of pre-configured resources belong to different CG resource configurations.
The method according to claim 43, wherein the method is applied to downlink transmission, and the at least one physical channel comprises at least two Physical Downlink Shared Channels (PDSCHs).
The method of claim 43 or 46,

the plurality of pre-configured resources belong to the same SPS resource configuration; or,

the plurality of pre-configured resources belong to different SPS resource configurations.
The method of any one of claims 25-47,

the first authorization information is carried by at least one of the following information: DCI, RRC, MAC CE.
A terminal device, comprising:

the HARQ process determining module is used for determining a plurality of HARQ processes according to the first authorization information after receiving the first authorization information;

a physical channel transmission module, configured to transmit at least one physical channel through at least one HARQ process of the plurality of HARQ processes.
A network device, comprising:

an authorization information sending module, configured to send first authorization information to a terminal device, where the first authorization information is used for the terminal device to determine multiple HARQ processes, so that the terminal device can transmit at least one physical channel through at least one HARQ process of the multiple HARQ processes.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 1 to 24.
A network device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 25 to 48.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 1 to 24 or performs the method of any one of claims 25 to 48.
A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 24 or to perform the method of any one of claims 25 to 48.
A computer program product comprising computer program instructions to cause a computer to perform the method of any of claims 1 to 24 or to perform the method of any of claims 25 to 48.
A computer program for causing a computer to perform the method of any one of claims 1 to 24 or to perform the method of any one of claims 25 to 48.