CN114762421A

CN114762421A - Method, terminal equipment and network equipment for determining hybrid automatic repeat request information

Info

Publication number: CN114762421A
Application number: CN202080083509.0A
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: 2022-07-15
Also published as: WO2021163968A1

Abstract

The application relates to a method, a terminal device and a network device for determining hybrid automatic repeat request information. The method comprises the following steps: after the terminal equipment receives the first authorization information, the terminal equipment determines a first hybrid automatic repeat request (HARQ) process number according to the first authorization information; the first authorization information is used for indicating the terminal equipment to transmit a first physical channel through a HARQ process corresponding to the first HARQ process number; and the first authorization information comprises first indication information, and the first indication information is used for determining partial information of the first HARQ process number. By using the method and the device, the HARQ process number with a large numerical value can be indicated on the basis of not increasing the expense of authorization information.

Description

Method, terminal equipment and network equipment for determining hybrid automatic repeat request information

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method, a terminal device, and a network device for determining hybrid automatic repeat request information.

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) for 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 scheme is not suitable for the NTN system, and also not suitable for other application scenarios or other systems that are not the NTN system but have some type of situation.

Disclosure of Invention

In view of this, embodiments of the present application provide a method, a terminal device, and a network device for determining hybrid automatic repeat request information, which may reduce overhead of grant information.

The embodiment of the application provides a method for determining hybrid automatic repeat request information, which is applied to terminal equipment and comprises the following steps: after the terminal equipment receives the first authorization information, the terminal equipment determines a first hybrid automatic repeat request (HARQ) process number according to the first authorization information;

The first authorization information is used for indicating the terminal equipment to transmit a first physical channel through an HARQ process corresponding to the first HARQ process number; and the first authorization information comprises first indication information, and the first indication information is used for determining part of information of the first HARQ process number.

The embodiment of the application provides a method for determining hybrid automatic repeat request information, which is applied to network equipment and comprises the following steps: sending first authorization information to the terminal equipment, wherein the first authorization information is used for enabling the terminal equipment to determine a first hybrid automatic repeat request (HARQ) process number according to the first authorization information;

the first authorization information is used for indicating the terminal equipment to transmit a first physical channel through a HARQ process corresponding to the first HARQ process number; and the first authorization information comprises first indication information, and the first indication information is used for determining partial information of the first HARQ process number.

An embodiment of the present application further provides a terminal device, including: the determining module is used for determining a first hybrid automatic repeat request (HARQ) process number according to the first authorization information after the terminal equipment receives the first authorization information; the first authorization information is used for indicating the terminal equipment to transmit a first physical channel through a HARQ process corresponding to the first HARQ process number; and the first authorization information comprises first indication information, and the first indication information is used for determining partial information of the first HARQ process number.

An embodiment of the present application further provides a network device, including: a 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 a HARQ process number according to the first authorization information; the first authorization information is used for indicating the terminal equipment to transmit a first physical channel through an HARQ process corresponding to the first HARQ process number; and the first authorization information comprises first indication information, and the first indication information is used for determining part of information of the first HARQ process number.

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 method for determining hybrid automatic repeat request information described above.

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 method for determining hybrid automatic repeat request information described above.

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 method for determining hybrid automatic repeat request information.

Embodiments of the present application further provide a computer-readable storage medium for storing a computer program, where the computer program makes a computer execute the method for determining hybrid automatic repeat request information described above.

Embodiments of the present application further provide a computer program product, which includes computer program instructions to make a computer execute the method for determining hybrid automatic repeat request information described above.

Embodiments of the present application further provide a computer program, which enables a computer to execute the method for determining hybrid automatic repeat request information described above.

The embodiment of the application determines the first HARQ process number by using the first authorization information, and the first indication information in the first authorization information is used for determining part of information of the first HARQ process number. Therefore, the embodiment of the application can realize complete information indication of the HARQ process numbers of various numerical values on the premise of not increasing authorization information overhead.

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 an RTT according to an embodiment of the present application.

Fig. 3 is a flowchart illustrating a method for determining HARQ information according to an embodiment of the present application.

Fig. 4 is a flowchart illustrating a method for determining HARQ information according to an embodiment of the present application.

Fig. 5 is a schematic diagram illustrating an effect of a period position corresponding to a time domain resource in an embodiment of the present application.

Fig. 6 is a schematic diagram illustrating an effect of a period position corresponding to a time domain resource in another embodiment of the present application.

Fig. 7 is a schematic structural block diagram of a terminal device according to an embodiment of the present application.

Fig. 8 is a schematic structural block diagram of a terminal device according to an embodiment of the present application.

Fig. 9 is a schematic block diagram of a network device according to another embodiment of the present application.

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

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

Fig. 12 is a schematic block diagram of a chip of an embodiment of the present application.

Fig. 13 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 technology, 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.. The wearable device may be worn directly on the body or may be a portable device integrated into the user's clothing or accessory. 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 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, a network device (gNB) in an NR network, or a network device in a future evolved PLMN network.

Alternatively, the network device may have mobile characteristics, e.g., 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 of the present application, a network device provides a service for a Cell (Cell), and a terminal device communicates with the network device through a transmission resource (e.g., a frequency domain resource or a spectrum resource) used by the Cell, where the Cell may be a Cell corresponding to the network device (e.g., 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, and 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, 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 like, which is not limited in the embodiment of the present application.

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: the three cases of A alone, A and B simultaneously and B 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. If the network device does not provide corresponding configuration parameters, the number of downlink HARQ processes may be a default value, for example, 8. 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 HARQ process number 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 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 there is traffic data to be transmitted within the RTT range after HARQ0 is scheduled; when the time after HARQ0 is scheduled exceeds the RTT, HARQ0 may be used again for transmitting other 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, but 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 greater than 16ms, for example, the RTT in NTN systems can be 600ms, which is actually possible: 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 throughput of data transmission of the terminal equipment.

That is to say, in an application scenario of the NTN system or other similar scenarios, because 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.

In order 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 desired that the number of HARQ processes configured for the terminal device by the network 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 device and the terminal device 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, and if the number of HARQ processes is increased (greater than 16), the indication domain of the HARQ process number needs to be directly modified in the grant information if the conventional indication mechanism is still used, which may result in an excessive overhead of the grant information, which is not a preferred scheme. Therefore, at present, considering new application scenarios such as an NTN system, how a network device indicates, to a terminal device, an HARQ process number corresponding to downlink data or uplink data when scheduling transmission is performed at a certain time is an urgent problem to be solved.

Therefore, the embodiment of the present application provides a method for determining HARQ information, which can indicate an HARQ process number for a terminal device on the premise of not increasing information overhead when the number of HARQ processes configured for the terminal device is large.

Fig. 3 is a flowchart illustrating a method for determining HARQ information, which is applied to a terminal side according to an embodiment of the present application, where the method includes at least some of the following:

s101: after the terminal equipment receives the first authorization information, the terminal equipment determines a first HARQ process number according to the first authorization information; the first authorization information is used for indicating the terminal equipment to transmit a first physical channel through a HARQ process corresponding to the first HARQ process number; and the first authorization information comprises first indication information, and the first indication information is used for determining partial information of the first HARQ process number.

The terminal device of the embodiment of the application can determine the first HARQ process number according to the first authorization information, so that the first physical channel is transmitted through the HARQ process corresponding to the first HARQ process number, wherein because the first indication information in the first authorization information is only used for determining part of information of the first HARQ process number, when the value of the first HARQ process number is large, the first indication information does not need to additionally increase overhead, so that the HARQ process number with a large value is indicated for the terminal device on the basis of not increasing information overhead.

Fig. 4 is a flowchart illustrating a method for determining HARQ information, which is applied to a network side according to an embodiment of the present application, where the method includes at least some of the following:

s201: sending first authorization information to the terminal equipment, wherein the first authorization information is used for the terminal equipment to determine a first HARQ process number according to the first authorization information; the first authorization information is used for indicating the terminal equipment to transmit a first physical channel through an HARQ process corresponding to the first HARQ process number; and the first authorization information comprises first indication information, and the first indication information is used for determining part of information of the first HARQ process number.

The network device of the embodiment of the present application may utilize a small amount of overhead of the indication information to enable the terminal device to determine the complete first HARQ process number, so the embodiment of the present application may be applied to a case where the HARQ process number is less than or equal to 16, or a case where the HARQ process number is greater than 16, and is applicable to a wide application scenario such as an NTN system.

In the embodiment of the present application, the first authorization information may be used to instruct the terminal device to receive a downlink first physical channel through a HARQ process corresponding to the first HARQ process number, and may also be used to instruct the terminal device to send an uplink first physical channel through a HARQ process corresponding to the first HARQ process number. That is to say, the first grant information may be used to instruct the terminal device to use a downlink HARQ process, and may also be used to instruct the terminal device to use an uplink HARQ process. Or, the first Physical Channel may include a Physical Downlink Shared Channel (PDSCH) or a Physical Uplink Shared Channel (PUSCH).

Optionally, in this embodiment of the present application, the terminal device may report one or more of the following information to the network device: whether or not to support increasing the number of HARQ processes, the number of HARQ processes supported, the maximum number of HARQ processes supported, and the range of the number of HARQ processes supported. Optionally, the network device may configure, according to the information reported by the terminal device (or according to the capability reported by the terminal device), the HARQ process used for the terminal device.

Optionally, in an embodiment of the present application, the first HARQ process number may be less than or equal to 16, and may also be greater than 16. Specifically, in a terrestrial communication scenario, the maximum number of HARQ processes configured for the terminal device is generally 16, and in this case, the number of the first HARQ process is less than or equal to 16. In an NTN system or other application scenarios with a large RTT, the number of HARQ processes of the terminal device increases, and therefore the number of the first HARQ process may be less than or equal to 16, or may be greater than 16. The embodiment of the present application is to solve the problem of how to indicate the HARQ process number greater than 16, and a specific indication manner will be described in detail below.

Optionally, in an embodiment of the present application, the network device sends the first authorization information, and the terminal device may obtain partial information of the first process number based on the first indication information in the first authorization information. Illustratively, the first indication information may be used to determine lower, upper or a pre-specified part of bits of the first HARQ process number. For example, in the case that the maximum number of HARQ processes configured by the terminal device is 64, the first HARQ process number should be represented using a 6-bit binary number, and assuming that the first indication information includes 3 bits, the first indication information may be used to determine lower 3 bits, upper 3 bits, or middle 3 bits of the first HARQ process number. Of course, the first indication information may also indicate discontinuous 3 bits in the 6-bit binary number, for example, the 1 st bit of the first indication information indicates the upper 1 bit of the first HARQ process number, the 2 nd and 3 rd bits of the first indication information indicate the lower 2 bits of the first HARQ process number, and so on. This is not a limitation of the present application.

Optionally, in an embodiment of the present application, the network device sends the first authorization information to the terminal device, where the first indication information in the first authorization information may be configured by the network device, and for example, whether the first indication information is included, a bit length included in the first indication information, and the like may be configured by the network device. The first indication Information may include a HARQ indication Information field in the first authorization Information, for example, the first authorization Information may be carried by Downlink Control Information (DCI), and the first indication Information is a HARQ process number indication field in the DCI. The terminal device may determine partial information of the HARQ process number according to the HARQ indication information field in the DCI, for example, determine the lower N bits of the HARQ process number. Optionally, the value of N is configured by the network device.

That is, the partial information of the first process number may be explicitly indicated using the HARQ indication information field including one or more bits. For example, the first HARQ process number is a 6-bit binary number "000101", and the 4-bit HARQ indication information field may be the upper 4 bits "0001", the lower 4 bits "0101", or the 2 nd to 5 th bits "0010" of the first HARQ process number.

Optionally, in an embodiment of the present application, the terminal device determines partial information of the first HARQ process number according to second indication information, where the second indication information corresponds to the first authorization information. The second indication information and the first indication information correspond to each other, that is, the second indication information and the first indication information have a direct or indirect correspondence, for example, the second indication information can be determined by information carried by the first authorization information, and the first authorization information is not required to directly provide field information, so that the overhead is saved.

Optionally, in an embodiment of the present application, the second indication information may be configured, preset, or agreed between the terminal device and the network device by the network device. The partial information of the first HARQ process number indicated by the second indication information may be other bits of the first HARQ process number except for the bits indicated by the first indication information. It should be understood that the second indication information may indicate consecutive bits in the HARQ process number, and may also indicate discontinuous bits in the HARQ process number, which is not limited in this application.

Optionally, in an embodiment of the present application, the first indication information may indicate the lower bits of the first HARQ process number, and the second indication information may indicate the upper bits of the first HARQ process number. For example, the terminal device determines the lower 4 bits of the first HARQ process number according to the HARQ indication information field, and determines the upper 2 bits of the first HARQ process number according to the second indication information, so as to obtain 6 bits in total of binary numbers of the first HARQ process number, and the binary numbers are converted into decimal numbers, which are the first HARQ process number.

Optionally, in an embodiment of the present application, the first indication information may further determine the high order bits of the first HARQ process number, and the second indication information may further determine the low order bits of the first HARQ process number. For example, the terminal device determines the high 4 bits of the first HARQ process number according to the HARQ indication information field, and determines the low 4 bits of the first HARQ process number according to the second indication information, so as to obtain 8 bits of binary number of the first HARQ process number, and the binary number is converted into a decimal number, which is the first HARQ process number.

It can be seen that the first HARQ process number in the embodiment of the present application is not determined by a single message, but is determined by parsing the joint coding of the first indication message and the second indication message. The following describes in detail an implementation manner of determining the first HARQ process number according to multiple embodiments.

In a first aspect, in an embodiment of the present application, time domain location information of a time domain resource corresponding to first authorization information is used as the second indication information.

Wherein, the time domain position information of the time domain resource comprises: and the time domain position information of the first authorization information or the time domain position information of the first physical channel scheduled by the first authorization information.

Optionally, the time domain location information of the time domain resource includes at least one of:

time unit information of transmission of the first authorization information;

time unit information of an end position of the first grant information transmission;

time unit information of a start position of transmission of the first authorization information;

time unit information transmitted by a first physical channel;

time unit information of an end position of the first physical channel transmission;

time unit information of a start position of a first physical channel transmission.

Wherein the time unit comprises at least one of: slot, symbol, subframe, half-frame, radio frame. The length of the subframe is 1 millisecond, the length of the half frame is 5 milliseconds, and the length of the radio frame is 10 milliseconds. The length of the slot or symbol is determined according to the corresponding subcarrier spacing. Alternatively, one slot includes 14 symbols or 7 symbols.

For the time domain position information of the time domain resource, the following description takes time units as "time slots" and "symbols" respectively.

Assuming that the first grant information is transmitted in symbol 0 and symbol 1 in slot n and the first physical channel is transmitted in symbol 2 to symbol 6 in slot n, then:

for embodiments where the time unit is a time slot:

the time unit information of the first authorization information transmission is a time slot n;

the time unit information of the end position of the first grant information transmission is a time slot n;

the time unit information of the initial position of the first authorization information transmission is a time slot n;

the time unit information transmitted by the first physical channel is a time slot n;

the time unit information of the end position of the first physical channel transmission is a time slot n;

the time unit information of the start position of the first physical channel transmission is a slot n.

For embodiments where the time cell is a symbol:

the time unit information of the end position of the first grant information transmission is symbol 1;

the time unit information of the start position of the first grant information transmission is symbol 0;

The time unit information of the end position of the first physical channel transmission is symbol 6;

the time unit information of the start position of the first physical channel transmission is symbol 2.

In the second case, the first grant information or the time unit information transmitted by the first physical channel may be considered as the slot n, because the time of the grant information or the physical channel transmission includes a plurality of symbols, and thus the time unit corresponding to the transmission is a time unit including a plurality of symbols, such as a slot or a unit larger than the slot.

Based on the description of the above embodiment, the terminal device may obtain the first indication information and the second indication information, for example, HARQ indication information domain information and time domain location information of the time domain resource, based on the first authorization information issued by the network device. Further, the first HARQ process number is determined by the method of the following embodiment.

Optionally, in an embodiment of the present application, according to the received first authorization information, the terminal device may determine a first period to which time domain location information of the time domain resource belongs; according to the information of the first period, partial information of the first HARQ process number may be further determined. Optionally, the partial information of the first HARQ process number is determined according to the information of the first period and the first mapping relationship.

Taking the determination of the upper bits of the first HARQ process number based on the first period information as an example, the first period and the upper bits of the first HARQ process number may have a first mapping relationship. The first mapping relationship may be configured by a network device, such as a base station, or may be preset. After the first period to which the time domain position information of the time domain resource belongs is determined, the high order of the first HARQ process number can be determined by using the information of the first period and the first mapping relation.

Optionally, in an embodiment of the present application, the first period is a first period in a second period, and one second period includes at least two first periods. For example, the length of the second period is determined according to the waiting time (i.e., RTT) for which a single HARQ process is scheduled again. The second period is divided into a plurality of sections, and a plurality of first periods can be obtained. Each first period has corresponding information, such as a label, a start position, a period length, and the like, and a first mapping relationship between each first period and the higher bits of the HARQ process number may be determined based on the information.

Optionally, in an embodiment of the present application, the first period length of the first period may include P time units, for example, P milliseconds ms, P subframes, P half frames, or P radio frames, where P is a positive integer. That is, the time unit of the first period may be milliseconds, a subframe, a half frame, or a radio frame. One radio frame is 10 ms, one field is 5 ms, and one subframe is 1 ms.

Optionally, in an embodiment of the present application, the time unit may also be a time slot. One slot may include 14 symbols. The absolute time length of one slot is different at different subcarrier intervals. For example, at 15kHz subcarrier spacing, a slot length of 1ms, at 30kHz subcarrier spacing, a slot length of 0.5ms, at 60kHz subcarrier spacing, a slot length of 0.25 ms. If the first period length of the first period is P slots, the first period length is different at different subcarrier intervals. Taking P as an example of 10, the first period length is 10ms at 15kHz subcarrier intervals, and the first period length is 5ms at 30kHz subcarrier intervals.

Optionally, the value of P is determined according to the maximum HARQ process number L of the terminal device and/or the maximum HARQ process number S indicated by the HARQ indication information field in the first indication information; wherein P, L and S are both positive integers, and L > S. Optionally, P ═ j × S, j is a positive integer.

For example, if the maximum number L of HARQ processes of the terminal device is 64, the maximum number S of HARQ processes that can be indicated by the HARQ indication information field is 8, the number of bits of the HARQ process number is 6, and the HARQ indication information field indicates 3 lower bits, the information in the first period needs to indicate 3 higher bits in the HARQ process number. The information of the first cycle needs 8 cases to map the 8 cases with higher HARQ process numbers. The second period thus comprises 8 first periods, and the first period length of the first period, and thus the value of P, is obtained.

Optionally, the length of the first period is different at different subcarrier intervals. For example, at 15kHz subcarrier spacing, the length of the first period is 16 time slots, i.e., 16 ms; the length of the first period is 16 slots, i.e., 8ms, at a 30kHz subcarrier spacing.

Optionally, the length of the first period is the same at different subcarrier intervals. For example, at 15kHz subcarrier spacing, the first cycle comprises 8 slots, i.e., 8 ms; the first cycle consists of 16 slots, also 8ms, at a 30kHz subcarrier spacing.

Alternatively, starting from every K radio frames, in every K radio frames, the start position of the first period is determined according to i × P, where P time units are the length of the first period, i is the index of the first period, i ═ 0,1,2,3, …, n, n is an integer, K is a positive integer, and P is a positive integer. That is, the second period may have a length of K radio frames, where each K radio frames includes a plurality of first periods, or the second period includes a plurality of first periods. The starting position of the second period is the starting position of every K wireless frames. For example, if K is 2, the start position of the second period is an even-numbered radio frame. Here, the time unit may be, alternatively, milliseconds, seconds, subframes, half frames, or radio frames, which are independent of the subcarrier spacing, and may also be a slot or symbol, which is dependent on the subcarrier spacing.

Optionally, the first period length is a time unit independent of the subcarrier spacing, for example:

the length of the first period is P milliseconds, wherein 10 multiplied by K is an integral multiple of P; or,

the length of the first period is P half frames, wherein 2 multiplied by K is an integral multiple of P; or,

the first period length is P wireless frames, wherein K is an integral multiple of P.

Optionally, the value of K is determined according to RTT. Illustratively, K radio frames may be made greater than or equal to RTT. For example, the RTT is about 40ms, K is 4, and K radio frames are 40 ms; for another example, the RTT is about 50ms, K is 6, and K wireless frames are 60 ms; for another example, the RTT is about 200ms, K is 20, and K radio frames are 200 ms. Illustratively, K radio frames may be made smaller than RTT. For example, the RTT is about 50ms, K is 4, and K radio frames are 40 ms.

Optionally, the value of K is determined according to the maximum HARQ process number L of the terminal device. Illustratively, K is L/10, for example, if the maximum HARQ process number L is 40, then K takes a value of 4. The maximum HARQ process number L is 200, and the value of K is 20. If the value of K has an association relationship with the maximum number of HARQ processes, e.g., L ═ 10K, the network device may schedule HARQ processes in K radio frames without repetition.

Optionally, the value of K is determined according to the subcarrier spacing. The duration of 1 time slot is different in different subcarrier intervals, and the K value can be set in different subcarrier intervals. For example, if the subcarrier spacing is 15kHz, K is 4; if the subcarrier spacing is 30kHz, K is 2.

According to the embodiment of the application, the value of K can be determined according to RTT and the maximum HARQ process number L, so that K wireless frames can be determined according to RTT, the HARQ processes can be scheduled in the RTT without repetition, and continuous transmission of data in each K wireless frames can be realized. And dividing the K wireless frames into a plurality of first periods, wherein the plurality of first periods correspond to different HARQ process number high bits. The network equipment determines a corresponding first period according to the high order of a first HARQ process number corresponding to the HARQ process needing to be scheduled, and schedules or configures the time domain position of the time domain resource in the first period of the K wireless frames. Therefore, in the embodiment of the application, the time domain position information of the time domain resource is used for indicating the high order of the HARQ process number, so that the overhead of the first indication information can be reduced, and the data throughput is increased.

Optionally, in this embodiment of the present application, the first period is P slots, the HARQ indication information field of the first indication information includes N bits, and a value of P is greater than or equal to 2 to the power of N. For example, the HARQ indication information field of the first indication information includes 3 bits, then the number of states of the maximum HARQ process number that can be indicated by the HARQ indication information field of the first indication information is 8 (i.e., 3 times of 2), and then the first cycle length P is greater than or equal to 8 slots. For another example, the HARQ indication information field of the first indication information includes 4 bits, then the number of states of the maximum HARQ process number that can be indicated by the HARQ indication information field of the first indication information is 16 (i.e., 4 times of 2), and then the first cycle length P is greater than or equal to 16 slots.

Optionally, in this embodiment of the present application, a value of K is preset or configured by a network device. For example, the network device may determine the value of K according to the above manner, and send the value of K to the terminal device through RRC signaling or MAC CE.

Optionally, in this embodiment of the present application, the maximum number L of HARQ processes of the terminal device conforms to at least one of the following items:

the maximum HARQ process number L of the terminal equipment is configured by the network equipment;

the maximum number L of HARQ processes of the terminal device is determined according to the value of K (e.g., L is 10K);

the maximum HARQ process number L of the terminal equipment is determined according to the RTT;

the maximum number L of HARQ processes of the terminal device is determined according to the subcarrier spacing.

Optionally, in this embodiment of the present application, a starting position of the second period is preset or configured by a network device; and/or a second period length of the second period is preset or configured by the network device.

Optionally, in this embodiment of the present application, a starting position of the first period is preset or configured by a network device; and/or the first period length of the first period is preset or configured by the network device.

In a second aspect, the first authorization information, for example, DCI, is scrambled using a Radio Network Temporary Identifier (RNTI), and then the second indication information is the first RNTI corresponding to the first authorization information. In some embodiments, the second indication information may include both time domain location information of the time domain resource and the first RNTI corresponding to the first grant information.

Optionally, in an embodiment of the present application, the first RNTI is an RNTI in an RNTI set, the RNTI set includes at least two RNTIs, and the RNTI set has a second mapping relationship with part of information of the first HARQ process number. The terminal equipment can determine partial information of the first HARQ process number according to the first RNTI and the second mapping relation. Optionally, the set of RNTIs is preset or configured by the network device. Optionally, the second mapping relationship is preset or configured by the network device.

Exemplarily, the terminal device determines an RNTI set to which the first RNTI belongs according to the first RNTI, and then determines partial information of the first HARQ process number corresponding to the RNTI set by using the second mapping relationship.

For example, when the HARQ indication information field indicates that the lower bit of the first HARQ process number is 1100, if the RNTI corresponding to the first grant information belongs to the first RNTI set and the upper bit of the HARQ process number corresponding to the first RNTI set is 0, the upper bit of the first HARQ process number to be scheduled by the first grant information is 0, the binary expression of the first HARQ process number is 01100, and the first HARQ process number is 12. If the RNTI corresponding to the first authorization information belongs to the second RNTI set and the high order of the HARQ process number corresponding to the second RNIT set is 1, the high order of the first HARQ process number is 1, the binary expression of the first HARQ process number is 11100, that is, the first HARQ process number is 28.

In a third aspect, the second indication information includes first grant information, such as Time Domain Resource Assignment (TDRA) information in the DCI.

Optionally, in an embodiment of the present application, the first TDRA is a TDRA in a TDRA set, the TDRA set includes at least two TDRAs, the TDRA set has a third mapping relationship with the partial information of the first HARQ process number, and the terminal device determines the partial information of the first HARQ process number according to the first RNTI and the third mapping relationship. Optionally, the third mapping relationship is preset or configured by the network device.

In one embodiment, the higher layer is a TDRA table configured for the terminal device, and the TDRA table reflects a third mapping relationship between the TDRA set and the partial information of the first HARQ process number. The terminal equipment can determine a TDRA set to which the TDRA in the first authorization information belongs based on the TDRA table, and takes the high order of the HARQ process number corresponding to the TDRA set as the high order of the first HARQ process number.

In a fourth aspect, in an embodiment of the present application, the second indication information may include at least two of time domain location information of the time domain resource, the first RNTI and the first TDRA. For example, the second indication information includes time domain position information of the time domain resource and a first TDRA, and the lower bits of the first HARQ process number may be determined according to the HARQ indication information field of the first indication information, the middle bits of the first HARQ process number may be determined according to the first TDRA, and the upper bits of the first HARQ process number may be determined according to the time domain position information of the time domain resource.

By using the embodiment of the application, the time domain position information of the time domain resource corresponding to the first authorization information, the first RNTI and/or the first TDRA information are/is used as the second indication information, and the information does not need the plaintext indication of the first authorization information and can be carried by the first authorization information, so that the purpose of saving the overhead of the HARQ indication information domain is achieved.

Several specific embodiments are used in the following to describe the implementation process of the method for determining hybrid automatic repeat request information according to the embodiment of the present application.

Example one

In the first embodiment of the present application, a network device determines time domain position information of a time domain resource according to a first HARQ process number corresponding to a HARQ process to be scheduled, and sends first authorization information according to the time domain position information. After the terminal equipment receives the first authorization information, the terminal equipment determines the low order of the first HARQ process number according to the HARQ indication information field in the first authorization information, and determines the first period to which the time domain position information of the time domain resource belongs according to the first authorization information; and determining the high order bit of the first HARQ process number according to the mark number of the first period. The first authorization information is used for indicating the terminal device to transmit the first physical channel through the HARQ process corresponding to the first HARQ process number.

Fig. 5 is a schematic position diagram of the first cycle in the first embodiment of the present application. Each 4 radio frames (40ms) is a second period, such as second period 0 and second period 1. Each second cycle comprises 5 first cycles, respectively identified as first cycle 0, first cycle 1, first cycle 2, first cycle 3 and first cycle 4. The start position of the radio frame P is the start position of the second period, and mod (P,4) is 0, where mod represents a modulo operation, the first period length of the first period is 8 subframes (8ms), and the second period length of the second period is 4 radio frames (40 ms).

Exemplarily, the mapping relationship between the first period and the high bits of the HARQ process number is shown in table 1:

first cycle index	First period 0	First period 1	First period 2	First period 3	First period 4
High order of HARQ process number	000	001	010	011	100

TABLE 1

It can be seen that by dividing the second period equally into 5 first periods, 5 cases with the higher HARQ process number can be indicated. If the bit number of the HARQ indication information field is 3, indicating 8 cases with lower HARQ process numbers, the first period and the HARQ indication information field may jointly indicate 40 cases with HARQ process numbers. In a system with an RTT of about 40ms, a terminal device may configure 40 HARQ processes, and by using the method according to the first embodiment of the present application, the HARQ processes may be accurately determined without increasing the overhead of the HARQ indication information field. The application process of the first embodiment of the present application is illustrated by the following two examples.

The first example is as follows: if the time domain location information of the time domain resource corresponding to the first grant information belongs to the first cycle 0 in the second cycle 0, for example, the terminal device receives the first grant information in a slot on the 3 rd subframe 510 in the radio frame P as shown in fig. 5, or the terminal device is scheduled to transmit the first physical channel in a slot on the subframe 510, since the subframe 510 belongs to the first cycle 0, the terminal device may determine that the high bit for the first HARQ process number is 000 according to table 1. In the case that the HARQ indication information field in the first grant information indicates that the lower bit of the first HARQ process number is 101, the terminal device may determine that the binary expression of the first HARQ process number corresponding to the first physical channel is 000101, that is, the first HARQ process number is 5.

After determining that the first HARQ process number corresponding to the first physical channel is 5, if the network device needs to schedule the terminal device to retransmit the transport block in the first physical channel, or the network device schedules the terminal device to transmit using the HARQ process with the HARQ process number of 5, the network device needs to schedule in the first cycle 0 in the subsequent second cycle 1. For example, the network device may schedule a HARQ process with HARQ process number 5 in a slot on the 7 th subframe 520 of the first cycle 0 in the second cycle 1.

Example two: if the time domain location information of the time domain resource corresponding to the first grant information belongs to the first cycle 2 in the second cycle 0, for example, the terminal device receives the first grant information in a time slot on the subframe 530 belonging to the first cycle 2 in the radio frame (P +1), or the terminal device is scheduled to transmit the first physical channel in the time slot on the subframe 530, the terminal device may determine that the high bit of the first HARQ process number is 010 according to the first mapping relationship, for example, table 1. In the case that the HARQ process number indication field in the first grant information indicates that the lower bit of the first HARQ process number is 101, the terminal device may determine that the binary expression of the first HARQ process number corresponding to the first physical channel is 010101, that is, the first HARQ process number is 21.

Example two

In the second embodiment of the present application, the setting of the first period is as shown in fig. 6, and the steps executed by the network device and the terminal device are similar to those in the first embodiment of the present application. In the second embodiment of the present application, every 4 radio frames are used as a second period, for example, the second period 0 and the second period 1 in fig. 6. The second period is divided equally into a plurality of first periods. The length of the first period is different for different subcarrier intervals. The length of the first period is 2 radio frames at 15kHz subcarrier intervals, and the length of the first period is 1 radio frame at 30kHz subcarrier intervals.

For example, the mapping relationship between each first period and the high bits of the HARQ process number at different subcarrier intervals is shown in table 2:

TABLE 2

It is assumed that the HARQ indication information field in the first grant information indicates that the lower bit of the first HARQ process number is 1100, and the time domain location information of the time domain resource is a time slot on the 3 rd subframe 610 of the radio frame (P +1), that is, the terminal device receives the first grant information in the time slot on the subframe 610, or the terminal device is scheduled to transmit the first physical channel in the time slot on the subframe 610, and the application process of the second embodiment of the present application is described by the following example.

Under the condition that the subcarrier spacing of the first physical channel is 15kHz, the subframe 610 belongs to the first period 0 in the second period 0, and the terminal device may determine that the high bit of the first HARQ process number is 0 according to the first mapping relationship, for example, table 2, and then the binary expression of the first HARQ process number is 01100, that is, the first HARQ process number corresponding to the first physical channel is 12.

If the network device needs to schedule the terminal device to retransmit the transport block in the first physical channel, or the network device schedules the terminal device to transmit using the HARQ process with the HARQ process number of 12, the network device needs to schedule in the first cycle 0 of 4 radio frames from the radio frame (P +4i) to the radio frame (P +4i +3), where i is a positive integer. For example, as shown in fig. 6, the network device may schedule a HARQ process with HARQ process number 12 in a slot on sub-frame 4 620 within radio frame (P +4), or the network device may schedule a HARQ process with HARQ process number 12 in a slot on sub-frame 7 630 within radio frame (P + 5).

In the case that the subcarrier spacing of the first physical channel is 30kHz, the subframe 610 belongs to the first period 1 in the second period 0, and the terminal device may determine that the high bit of the first HARQ process number is 01 according to table 2, and then the binary expression of the first HARQ process number is 011100, that is, the HARQ process number of the first physical channel 0 is 28.

If the network device needs to schedule the terminal device to retransmit the transport block in the first physical channel, or the network device schedules the terminal device to transmit using the HARQ process with the HARQ process number of 28, the network device needs to schedule in the first cycle 1 of 4 radio frames from the radio frame (P +4i) to the radio frame (P +4i +3), where i is a positive integer. For example, as shown in fig. 6, the network device may schedule a HARQ process with HARQ process number 28 in a slot on sub-frame 7 630 within radio frame (P + 5).

It is assumed that the HARQ indication information field in the first grant information indicates that the low order bit of the first HARQ process number is 1100, and the time domain position of the time domain resource is a slot in the 8 th subframe 640 of the radio frame (P +2), that is, the terminal device receives the first grant information in a slot on the 8 th subframe 640 of the radio frame (P +2), or the terminal device is scheduled to transmit the first physical channel in a slot on the 8 th subframe 640 of the radio frame (P +2), and the application process of the second embodiment of the present application is described by the following example.

In the case that the subcarrier spacing of the first physical channel is 15kHz, the subframe 640 belongs to the first cycle 1, and the terminal device may determine that the high order bit of the first HARQ process number is 1 according to table 2, and then the binary expression of the first HARQ process number is 11100, that is, the first HARQ process number is 28.

In the case that the subcarrier spacing of the first physical channel is 30kHz, the subframe 640 belongs to the first cycle 2, and the terminal device may determine that the high order bit of the first HARQ process number is 10 according to table 2, and then the binary expression of the first HARQ process number is 101100, that is, the first HARQ process number is 44.

EXAMPLE III

In the third embodiment of the present application, after the terminal device receives the first authorization information, the terminal device determines the lower bits of the first HARQ process number according to the HARQ indication information field in the first authorization information, determines the TDRA set to which the first TDRA belongs according to the first TDRA in the first authorization information and by using the TDRA table, and then determines the upper bits of the first HARQ process number corresponding to the TDRA set to which the first TDRA belongs. The first authorization information is used for indicating the terminal device to transmit the first physical channel through the HARQ process corresponding to the first HARQ process number.

In the third embodiment of the present application, the network device configures a TDRA table through a high-level parameter, where the TDRA table includes high bits of Q HARQ process numbers and Q corresponding TDRA sets, and each TDRA set includes multiple TDRAs.

Table 3 shown below is a TDRA table for the third example of the embodiment of the present application.

TABLE 3

Wherein, the TDRA table includes 4 TDRA sets, each TDRA set corresponds to a HARQ process number high bit, and each row in the TDRA table carries the TDRA related information of at least one physical channel.

In the embodiment of the present application, if the HARQ indication information field of the first grant information received by the terminal device is 1100, and the binary expression of the first TDRA in the first grant information is 1001, the terminal device may determine that the TDRA in the first grant information is TDRA 9 and TDAR9 belongs to set 2 according to table 3, and then the high order bit of the first HARQ process number is 10, the low order bit is 1100, and the binary expression of the first HARQ process number is 101100, that is, the first HARQ process number is 44.

By utilizing the embodiment of the application, the time domain position information of the time domain resource corresponding to the first authorization information, the first RNTI and/or the first TDRA information are/is used as the second indication information, and the information does not need the plaintext indication of the first authorization information and can be carried by the first authorization information, so that the overhead of an HARQ process number indication domain can be saved, and the effect of 'implicit indication' is actually realized, so that the scheduled HARQ process can be determined under the condition that the overhead of the conventional HARQ process number indication domain is not increased.

In addition, corresponding to at least one method applied to the terminal device, the embodiment of the application also 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. 7, an embodiment of the present application provides a terminal device 100, which includes:

a determining module, for example, the HARQ process number determining module 110, configured to determine, after the terminal device 100 receives the first authorization information, a first HARQ process number according to the first authorization information;

the first authorization information is used to instruct the terminal device 100 to transmit a first physical channel through a HARQ process corresponding to the first HARQ process number; and the first authorization information comprises first indication information, and the first indication information is used for determining partial information of the first HARQ process number.

Optionally, in this embodiment of the present application, the first grant information may be uplink grant information, for example, configured to instruct the terminal device to send an uplink first physical channel; the first grant information may also be downlink grant information, for example, a first physical channel for instructing the terminal device to receive downlink.

Optionally, the first indication information is used to determine the lower bits of the first HARQ process number.

Referring to fig. 8, the HARQ process number determining module 110 includes:

a first partial information determining unit 111, configured to determine the lower N bits of the first HARQ process number according to the HARQ indication information field in the first grant information.

Optionally, the HARQ process number determining module 110 further includes:

a second partial information determining unit 112, configured to determine partial information of the first HARQ process number according to second indication information, where the second indication information corresponds to the first grant information.

Optionally, the second indication information includes time domain location information of a time domain resource corresponding to the first grant information.

Optionally, the second partial information determination unit 112 includes:

the period determining subunit is configured to determine, according to the received first authorization information, a first period to which a time domain position of the time domain resource belongs;

and the process number determining subunit is used for determining partial information of the first HARQ process number according to the information of the first period. Wherein the information of the first period may be a mark number of the first period.

Optionally, the first period is a first period in a second period, the second period includes at least two first periods, and the first period has a first mapping relationship with the partial information of the first HARQ process number. The process number determining subunit is configured to determine partial information of the first HARQ process number according to the information of the first period and the first mapping relationship.

Optionally, the second indication information includes a first RNTI corresponding to the first authorization information, the first RNTI is an RNTI in an RNTI set, the RNTI set includes at least two RNTIs, and the RNTI set has a second mapping relationship with part of information of the first HARQ process number.

Optionally, the second partial information determining unit 112 includes:

and the RNTI determining subunit is used for determining part of the information of the first HARQ process number by the terminal equipment according to the first RNTI and the second mapping relation.

Optionally, the second indication information includes first TDRA information in the first authorization information, the first TDRA information is TDRA information in a TDRA set, the TDRA set includes at least two pieces of TDRA information, and the TDRA set and part of information of the first HARQ process number have a third mapping relationship;

optionally, the second partial information determining unit 112 includes:

and the TDRA determining subunit is used for determining the partial information of the first HARQ process number according to the first TDRA information and the third mapping relation.

On the other hand, corresponding to at least one method applied to the embodiment of the network device, the embodiment of the present application further 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. 9, an embodiment of the present application provides a network device 200, which includes:

a sending module, for example, the authorization information sending module 210, configured to send first authorization information to the terminal device, where the first authorization information is used for the terminal device to determine a HARQ process number according to the first authorization information;

Optionally, referring to fig. 10, the network device 200 further includes:

the first information configuring module 220 is configured to configure first indication information, where the first indication information is used by the terminal device to determine a lower order of the first HARQ process number.

Optionally, referring to fig. 10, the network device 200 further includes:

a second information determining module 230, configured to determine second indication information, where the second indication information is used by the terminal device to determine partial information of the first HARQ process number, and the second indication information corresponds to the first grant information.

Fig. 11 is a schematic configuration diagram of a communication apparatus 600 according to an embodiment of the present application. The communication device 600 shown in fig. 11 includes a processor 610, and the processor 610 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 11, the communication device 600 may further 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, as shown in fig. 11, 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 in particular, 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 antennas, and the number of antennas may be one or more.

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

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

Fig. 12 is a schematic block diagram of a chip 700 according to an embodiment of the application. The chip 700 shown in fig. 12 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, as shown in fig. 12, the chip 700 may further include a 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. Wherein 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 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 a 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.

The processors referred to above 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 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. The volatile memory may be a Random Access Memory (RAM).

It should be understood that the above memories are exemplary but not limiting, for example, the memories in the embodiments of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous 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. 13 is a schematic block diagram of a communication system 800 according to an embodiment of the present application. As shown in fig. 13, the communication system 800 includes a terminal device 810 and a network device 820. Wherein,

the network device 820 sends first authorization information to the terminal device 810;

after the terminal device 810 receives the first authorization information, the terminal device 810 determines a first HARQ process number according to the first authorization information;

The first authorization information is used to instruct the terminal device 810 to transmit a first physical channel through a HARQ process corresponding to the first HARQ process number; and the first authorization information comprises first indication information, and the first indication information is used for determining part of information of the first HARQ process number.

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, further description is omitted 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. The procedures or functions according to the embodiments of the present application are wholly or partially generated when the computer program instructions are loaded and executed on a computer. 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., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., 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 imply any order of execution, and the order of execution of the processes should be determined by their functions and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

It can be clearly understood by those skilled in the art that, for convenience and simplicity 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 protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and shall cover the protection 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 method for determining hybrid automatic repeat request information, which is applied to a terminal device, comprises the following steps:

after terminal equipment receives first authorization information, the terminal equipment determines a first hybrid automatic repeat request (HARQ) process number according to the first authorization information;

The first authorization information is used for indicating the terminal device to transmit a first physical channel through a HARQ process corresponding to the first HARQ process number; and the first authorization information comprises first indication information, and the first indication information is used for determining partial information of the first HARQ process number.
The method of claim 1, wherein,

the first HARQ process number is less than or equal to 16; or,

the first HARQ process number is greater than 16.
The method of claim 1 or 2,

the first indication information is used for determining the lower bits of the first HARQ process number.
The method of any one of claims 1-3,

the first indication information comprises a HARQ indication information field in the first authorization information;

the terminal equipment determines a first hybrid automatic repeat request (HARQ) process number according to the first authorization information, and the method comprises the following steps:

and the terminal equipment determines the low N bits of the first HARQ process number according to the HARQ indication information domain in the first authorization information.
The method of any one of claims 1-4,

the terminal equipment determines a first hybrid automatic repeat request (HARQ) process number according to the first authorization information, and the method comprises the following steps:

And the terminal equipment determines partial information of the first HARQ process number according to second indication information, wherein the second indication information corresponds to the first authorization information.
The method of claim 5, wherein,

the second indication information is used for determining the high order of the first HARQ process number.
The method of claim 5 or 6,

the second indication information includes: time domain location information of a time domain resource corresponding to the first grant information.
The method of claim 7, wherein,

the time domain location information of the time domain resource includes: time domain location information of the first authorization information; or, the time domain position information of the first physical channel scheduled by the first authorization information.
The method of claim 7 or 8, wherein the time domain location information of the time domain resource comprises at least one of:

time unit information of the first authorization information transmission;

time unit information of an end position of the first grant information transmission;

time unit information of a starting position of the first authorization information transmission;

time unit information transmitted by the first physical channel;

Time unit information of an end position of the first physical channel transmission;

time unit information of a starting position of the first physical channel transmission.
The method according to any one of claims 7-9, wherein the method comprises:

determining a first period to which a time domain position of the time domain resource belongs according to the received first authorization information;

and determining partial information of the first HARQ process number according to the information of the first period.
The method of any one of claims 7-10,

determining a first period to which a time domain position of the time domain resource belongs according to the received first authorization information;

and determining partial information of the first HARQ process number according to the mark number of the first period.
The method of claim 10 or 11,

the first period is a first period in a second period, the second period comprises at least two first periods, and the first period has a first mapping relation with partial information of the first HARQ process number;

the terminal equipment determines the partial information of the first HARQ process number according to the second indication information, and the method comprises the following steps:

and the terminal equipment determines partial information of the first HARQ process number according to the information of the first period and the first mapping relation.
The method of any one of claims 10-12,

the first period length of the first period is P milliseconds; or,

the length of the first period is P half frames; or,

the first period length is P wireless frames;

wherein P is a positive integer.
The method of any one of claims 10-12,

the first period length is P time units, where a value of P is determined according to a maximum HARQ process number L of the terminal device and/or a maximum HARQ process number S indicated by a HARQ indication information field in the first indication information, where P, L and S are positive integers, and L > S.
The method of claim 14, wherein P is j x S, j being a positive integer.
The method of any one of claims 10-15,

starting from every K radio frames, the start position of the first period is determined according to i × P, where P time units are the first period length, i is the index of the first period, i ═ 0,1,2,3, …, n, n is an integer, K is a positive integer, and P is a positive integer, in every K radio frames.
The method of claim 16, wherein,

the first period length is P milliseconds, wherein 10 multiplied by K is an integral multiple of P; or,

The first period length is P half frames, wherein 2 xK is an integral multiple of P; or,

the first period length is P wireless frames, wherein K is an integral multiple of P.
The method of claim 16 or 17,

the value of K is determined according to the round trip time RTT; and/or the presence of a gas in the gas,

the value of K is determined according to the maximum HARQ process number L of the terminal equipment; and/or the presence of a gas in the gas,

the value of K is preset or configured by network equipment; and/or the presence of a gas in the gas,

the value of K is determined according to the subcarrier spacing.
The method of claim 14 or 18,

the maximum HARQ process number L of the terminal equipment is configured by the network equipment; and/or the presence of a gas in the gas,

the maximum HARQ process number L of the terminal equipment is determined according to the value of K; and/or the presence of a gas in the gas,

the maximum HARQ process number L of the terminal equipment is determined according to round trip transmission time RTT; and/or the presence of a gas in the gas,

the maximum number L of HARQ processes of the terminal device is determined according to the subcarrier spacing.
The method of any one of claims 12-19,

the starting position of the second period is preset or configured by network equipment; and/or the presence of a gas in the gas,

a second period length of the second period is preset or configured by a network device.
The method of any one of claims 10-20,

the starting position of the first period is preset or configured by a network device; and/or the presence of a gas in the gas,

the first period length is preset or configured by a network device.
The method of any one of claims 5-21,

the second indication information includes: and the first radio network equipment temporary identifier RNTI corresponding to the first authorization information.
The method of claim 22, wherein,

the first RNTI is an RNTI in an RNTI set, the RNTI set comprises at least two RNTIs, and the RNTI set and part of information of the first HARQ process number have a second mapping relation;

the terminal equipment determines the partial information of the first HARQ process number according to the second indication information, and the method comprises the following steps:

and the terminal equipment determines partial information of the first HARQ process number according to the first RNTI and the second mapping relation.
The method of claim 23, wherein,

the RNTI set is preset or configured by network equipment; and/or the presence of a gas in the gas,

the second mapping relationship is preset or configured by a network device.
The method of any one of claims 5-24,

The second indication information includes: first time domain resource allocation, TDRA, information in the first authorization information.
The method of claim 25, wherein,

the first TDRA information is TDRA information in a TDRA set, the TDRA set comprises at least two TDRA information, and the TDRA set and partial information of the first HARQ process number have a third mapping relation;

the terminal equipment determines partial information of the first HARQ process number according to the second indication information, and the method comprises the following steps:

and the terminal equipment determines partial information of the first HARQ process number according to the first TDRA information and the third mapping relation.
The method of claim 26, wherein,

the TDRA set is preset or configured by a network device; and/or the presence of a gas in the atmosphere,

the third mapping relationship is preset or configured by a network device.
The method of any one of claims 1-27,

the first authorization information is carried by downlink control information DCI.
A method for determining hybrid automatic repeat request information, applied to a network device, the method comprising:

sending first authorization information to terminal equipment, wherein the first authorization information is used for the terminal equipment to determine a first hybrid automatic repeat request (HARQ) process number according to the first authorization information;

The first authorization information is used for indicating the terminal device to transmit a first physical channel through a HARQ process corresponding to the first HARQ process number; and the first authorization information comprises first indication information, and the first indication information is used for determining part of information of the first HARQ process number.
The method of claim 29, wherein,

the first HARQ process number is less than or equal to 16; or,

the first HARQ process number is greater than 16.
The method of claim 29 or 30, wherein the method further comprises:

and configuring the first indication information, wherein the first indication information is used for the terminal equipment to determine the low order of the first HARQ process number.
The method of any one of claims 29-31,

the first indication information comprises a HARQ indication information field in the first authorization information, and the HARQ indication information field is used for the terminal device to determine the lower N bits of the first HARQ process number.
The method of any one of claims 29-32, wherein
The method further comprises the following steps:

and determining second indication information, wherein the second indication information is used for the terminal equipment to determine partial information of the first HARQ process number, and the second indication information corresponds to the first authorization information.
The method of claim 33, wherein,

the second indication information is used for determining the high order bits of the first HARQ process number.
The method of claim 33 or 34,

the second indication information includes: time domain location information of a time domain resource corresponding to the first grant information.
The method of claim 35, wherein,

the time domain location information of the time domain resource includes: time domain location information of the first authorization information; or, the time domain position information of the first physical channel scheduled by the first grant information.
The method of claim 35 or 36, wherein the time domain location information of the time domain resource comprises at least one of:

time unit information of the first authorization information transmission;

time unit information of an end position of the first grant information transmission;

time unit information of a starting position of the first authorization information transmission;

time unit information transmitted by the first physical channel;

time unit information of an end position of the first physical channel transmission;

time unit information of a starting position of the first physical channel transmission.
The method of any one of claims 35-37,

and the time domain position of the time domain resource belongs to a first period, and the information of the first period is used for determining part of the information of the first HARQ process number.
The method of any one of claims 35-38,

and the time domain position of the time domain resource belongs to a first period, and the label of the first period is used for determining partial information of the first HARQ process number.
The method of claim 38 or 39,

the first period is a first period in a second period, the second period comprises at least two first periods, and the first period has a first mapping relation with partial information of the first HARQ process number;

the information of the first period and the first mapping relation are used for the terminal equipment to determine partial information of the first HARQ process number.
The method of any one of claims 38-40,

the first period length of the first period is P milliseconds; or,

the length of the first period is P half frames; or,

the first period length is P wireless frames;

wherein P is a positive integer.
The method of any one of claims 38-40,

The first period length is P time units, where a value of P is determined according to a maximum HARQ process number L of the terminal device and/or a maximum HARQ process number S indicated by a HARQ indication information field in the first indication information, where P, L and S are both positive integers, and L > S.
The method of claim 42, wherein P ═ j × S, j is a positive integer.
The method of any one of claims 38-43,

starting from every K radio frames, the starting position of the first period is determined according to the i multiplied by P within every K radio frames,

wherein P time units are the first period length, i is the index of the first period, i is 0,1,2,3, …, n, n is an integer, K is a positive integer, and P is a positive integer.
The method of claim 44, wherein,

the first period length is P milliseconds, wherein 10 multiplied by K is an integral multiple of P; or,

the first period length is P half frames, wherein 2 xK is an integral multiple of P; or,

the first period length is P wireless frames, wherein K is an integral multiple of P.
The method of claim 44 or 45,

the value of K is determined according to the round trip time RTT; and/or the presence of a gas in the gas,

The value of K is determined according to the maximum HARQ process number L of the terminal equipment; and/or the presence of a gas in the atmosphere,

the value of K is preset or configured by the network equipment; and/or the presence of a gas in the gas,

the value of K is determined according to the subcarrier spacing.
The method of claim 42 or 46,

the maximum HARQ process number L of the terminal equipment is configured by the network equipment; and/or the presence of a gas in the gas,

the maximum HARQ process number L of the terminal equipment is determined according to the value of K; and/or the presence of a gas in the gas,

the maximum HARQ process number L of the terminal equipment is determined according to round trip transmission time RTT; and/or the presence of a gas in the gas,

the maximum number L of HARQ processes of the terminal device is determined according to the subcarrier spacing.
The method of any one of claims 40-47,

the starting position of the second period is preset or configured by the network device; and/or the presence of a gas in the gas,

a second period length of the second period is preset or configured by the network device.
The method of any one of claims 38-48,

the starting position of the first period is preset or configured by the network device; and/or the presence of a gas in the gas,

the first period length is preset or configured by the network device.
The method of any one of claims 33-49,

the second indication information includes: and the first radio network equipment temporary identifier RNTI corresponding to the first authorization information.
The method of claim 50, wherein,

the first RNTI is an RNTI in an RNTI set, the RNTI set comprises at least two RNTIs, and the RNTI set and part of information of the first HARQ process number have a second mapping relation;

the first RNTI and the second mapping relation are used for the terminal equipment to determine partial information of the first HARQ process number.
The method of claim 51, wherein,

the set of RNTIs is preset or configured by the network device; and/or the presence of a gas in the gas,

the second mapping relationship is preset or configured by the network device.
The method of any one of claims 33-52,

the second indication information includes: first Time Domain Resource Allocation (TDRA) information in the first authorization information.
The method of claim 53, wherein,

the first TDRA information is TDRA information in a TDRA set, the TDRA set comprises at least two TDRA information, and the TDRA set and the partial information of the first HARQ process number have a third mapping relation;

The first TDRA information and the third mapping relationship are used for the terminal device to determine partial information of the first HARQ process number.
The method of claim 54, wherein,

the set of TDRAs is preset or configured by the network device; and/or the presence of a gas in the atmosphere,

the third mapping relationship is preset or configured by the network device.
The method of any one of claims 29-55,

the first authorization information is carried by downlink control information DCI.
A terminal device, comprising:

the terminal equipment determines a first hybrid automatic repeat request (HARQ) process number according to the first authorization information after receiving the first authorization information;

the first authorization information is used for indicating the terminal device to transmit a first physical channel through a HARQ process corresponding to the first HARQ process number; and the first authorization information comprises first indication information, and the first indication information is used for determining partial information of the first HARQ process number.
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 a first HARQ process number according to the first authorization information;

The first authorization information is used for indicating the terminal device to transmit a first physical channel through a HARQ process corresponding to the first HARQ process number; and the first authorization information comprises first indication information, and the first indication information is used for determining part of information of the first HARQ process number.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor being adapted to invoke and execute the computer program stored in the memory to perform the method of any of claims 1 to 28.
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 29 to 56.
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 of claims 1 to 28 or performs the method of any of claims 29 to 56.
A computer readable storage medium storing a computer program for causing a computer to perform the method of any of claims 1 to 28 or to perform the method of any of claims 29 to 56.
A computer program product comprising computer program instructions to cause a computer to perform the method of any of claims 1 to 28 or to perform the method of any of claims 29 to 56.
A computer program for causing a computer to perform the method of any one of claims 1 to 28 or to perform the method of any one of claims 29 to 56.