A channel transmission method and apparatus thereof

Abstract

A channel transmission method and its device. The method includes: a terminal device receives first downlink control information DCI, the first DCI schedules a first hybrid automatic repeat request HARQ process to transmit a first physical channel carrying a first transport block TB, and the first DCI corresponds to first information; when a first new data indication NDI information in the first DCI is the same as second NDI information, the terminal device determines whether the first TB is the same as a second TB according to the first information; wherein, the second NDI is the NDI in second DCI, and the second DCI is the DCI that the terminal device received previously and used to schedule the second physical channel carrying the second TB for the first HARQ process to transmit. This method can enable the network device and the terminal device to have consistent understandings and improve the accuracy of channel transmission.

Description

Technical Field

[0001] The present invention relates to the field of communication technologies, and in particular to a technical field of channel transmission. Background Art

[0002] In the NTN (Non Terrestrial Network) technology, satellite communication is generally used to provide communication services to ground users. Compared with terrestrial cellular network communication, satellite communication has many unique advantages, such as: not limited by the user's geographical location, long communication distance, high stability, etc.

[0003] However, in the NTN system, since the communication distance between the terminal device and the satellite (or the network device) is very long, the RTT (Round Trip Time) of signal transmission is very large. For example, in the GEO (Geostationary Earth Orbit) system, the RTT of signal transmission can be in the order of hundreds of milliseconds. For example, the maximum RTT of signal transmission can be about 600 ms. In the LEO (Low-Earth Orbit) system, the RTT of signal transmission can be in the order of dozens of milliseconds. That is, the RTT of the NTN system is much larger than that of the terrestrial communication system.

[0004] Therefore, when applying the NR HARQ mechanism applied to the terrestrial communication system to the NTN system, enhancement is required. This enhancement includes disabling the HARQ process. The network device can configure the disabling for one or some of the downlink HARQ processes of the terminal device. For the downlink HARQ process configured to be disabled, the network device does not need to receive the HARQ-ACK information corresponding to the TB transmitted in this HARQ process, and can reuse this HARQ process for data transmission. The network device can also configure the disabling for one or some of the uplink HARQ processes of the terminal device. For the uplink HARQ process configured to be disabled, the network device does not need to receive the PUSCH transmitted by the terminal device through this HARQ process, and can reuse this HARQ process for the transmission of other PUSCHs. The physical channel transmission scheduled by reusing this HARQ process can be a new transmission or a retransmission. If the physical channel transmission scheduled by reusing this HARQ process is a retransmission, it can be considered as a blind channel retransmission.

[0005] However, during the blind channel retransmission process, there will be a problem that the understanding of data transmission between the terminal device and the network device is inconsistent. Summary of the Invention

[0006] The present invention provides a blind channel retransmission method, a terminal device, and a network device that can make the understanding of data transmission between the terminal device and the network device consistent.

[0007] The present invention provides the following technical solutions:

[0008] A method for channel transmission, comprising: a terminal device receives first downlink control information DCI, the first DCI schedules a first hybrid automatic repeat request HARQ process to transmit a first physical channel carrying a first transport block TB, and the first DCI corresponds to first information; when a first new data indication NDI information in the first DCI is the same as second NDI information, the terminal device determines whether the first TB is the same as a second TB according to the first information; wherein, the second NDI is the NDI in a second DCI, and the second DCI is the DCI that the terminal device received previously and used to schedule the second physical channel carrying the second TB for the first HARQ process transmission.

[0009] A channel transmission apparatus, comprising: a receiving unit, configured to receive first downlink control information DCI, the first DCI schedules a first hybrid automatic repeat request HARQ process to transmit a first physical channel carrying a first transport block TB, and the first DCI corresponds to first information; a confirmation unit, configured to determine whether the first TB is the same as a second TB according to the first information when a first new data indication NDI information in the first DCI is the same as second NDI information; wherein, the second NDI is the NDI in a second DCI, and the second DCI is the DCI that the receiving unit received previously and used to schedule the second physical channel carrying the second TB for the first HARQ process transmission.

[0010] A channel transmission apparatus, comprising: a processor and a memory; the processor calls a program in the memory and executes any of the above channel transmission methods.

[0011] A chip, comprising: a processor, configured to call and run a computer program from a memory, and a device installed with the chip executes any of the above channel transmission methods.

[0012] A computer-readable storage medium, characterized in that a program for an uplink transmission method is stored on the computer-readable storage medium, and when the program for the uplink transmission method is executed by a processor, any of the above channel transmission methods is implemented.

[0013] A computer program product, wherein the computer program product is stored in a non-transitory computer-readable storage medium, and when the computer program is executed, any of the above channel transmission methods is implemented.

[0014] The beneficial effects of the present invention are as follows: During the channel transmission process, a first piece of information is introduced to further determine whether the first transport block (TB) is the same as the second TB, that is, to determine whether it is a retransmission or a new transmission. Thereby, when the hybrid automatic repeat request (HARQ) process is disabled, due to the large round-trip time (RTT), only using the new data indicator (NDI) information to determine whether it is a retransmission or a new transmission is avoided, and the situation of inconsistent understanding between the network device and the terminal device is prevented. Thus, the accuracy of channel transmission is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1A FIG. is a schematic structural diagram of a communication system provided by an embodiment of the present application.

[0016] Figure 1B FIG. is a schematic structural diagram of another communication system provided by an embodiment of the present application.

[0017] Figure 1C FIG. is a schematic structural diagram of another communication system provided by an embodiment of the present application.

[0018] Figure 2 FIG. is a schematic diagram of the relationship between the number of HARQ processes supported by a terminal device and the RTT.

[0019] Figure 3 FIG. is a schematic diagram of data transmission of a HARQ process configured to disable HARQ-ACK feedback.

[0020] Figure 4 FIG. is a flowchart of a channel transmission method provided in the first specific embodiment of the present application.

[0021] Figure 5 FIG. is a schematic block diagram of a channel transmission device provided in the second specific embodiment of the present application.

[0022] Figure 6 FIG. is a schematic circuit diagram of a channel transmission device provided in the third specific embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the embodiments described herein are only used to explain the present invention and are not used to limit the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this invention belongs. The terms used in the description of the present invention herein are for the purpose of describing particular embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] The technical solutions of the embodiments of this application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system, New Radio (NR) system, evolved system of the NR system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), 5th-Generation (5G) system or other communication systems, etc.

[0026] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technologies, mobile communication systems will not only support traditional communication but also support, for example, Device to Device (D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0027] Optionally, the communication system in the embodiments of the present application can be applied to a Carrier Aggregation (CA) scenario, a Dual Connectivity (DC) scenario, or a Standalone (SA) networking scenario.

[0028] Optionally, the communication system in the embodiments of the present application can be applied to unlicensed spectrum, where the unlicensed spectrum can also be considered as shared spectrum; or, the communication system in the embodiments of the present application can also be applied to licensed spectrum, where the licensed spectrum can also be considered as non-shared spectrum.

[0029] Optionally, the embodiments of the present application can be applied to a Non-Terrestrial Networks (NTN) system or a Terrestrial Networks (TN) system.

[0030] The embodiments of the present application describe various embodiments in combination with network devices and terminal devices. Among them, the terminal device can also be referred to as a User Equipment (UE), access terminal, user unit, user station, mobile station, mobile device, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device, etc.

[0031] The terminal device can be a station (ST) in a WLAN, and can be a cellular phone, cordless phone, Session Initiation Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA) device, handheld device with wireless communication function, computing device or other processing device connected to a wireless modem, in-vehicle device, wearable device, terminal device in a next-generation communication system such as an NR network, or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0032] In the embodiments of the present application, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or in-vehicle; it can also be deployed on water (such as on a ship, etc.); it can also be deployed in the air (such as on an airplane, balloon, satellite, etc.).

[0033] In the embodiments of the present application, the terminal device can be a mobile phone, tablet (Pad), computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city or wireless terminal device in smart home, etc. The terminal device involved in the embodiments of the present application can also be referred to as a terminal, user equipment (UE), access terminal device, in-vehicle terminal, industrial control terminal, UE unit, UE station, mobile station, mobile unit, remote station, remote terminal device, mobile device, UE terminal device, wireless communication device, UE agent or UE device, etc. The terminal device can also be fixed or mobile.

[0034] By way of example and not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. A wearable device, also known as a wearable intelligent device, is a general term for devices developed by applying wearable technology to the intelligent design of daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. A wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable intelligent devices include those with complete functions and large sizes that can realize complete or partial functions without relying on a smart phone, such as smart watches or smart glasses, etc., and those that only focus on a certain type of application function and need to cooperate with other devices such as smart phones, such as various smart bracelets and smart jewelry for physical sign monitoring.

[0035] In the embodiments of the present application, the network device may be a device used to communicate with a mobile device. The network device may be an access point (AP) in a WLAN, a base transceiver station (BTS) in GSM or CDMA, a NodeB (NB) in WCDMA, an evolved NodeB (eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device (gNB) in an NR network, or a network device in a future evolved PLMN network, or a network device in an NTN network, etc.

[0036] By way of example and not limitation, in the embodiments of the present application, the network device may have mobility characteristics. For example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device may also be a base station located on land, water, etc.

[0037] In the embodiments of the present application, a network device can provide services for a cell, and a terminal device communicates with the network device through the transmission resources used by the cell (for example, frequency domain resources, or in other words, spectrum resources). The cell can be a cell corresponding to the network device (such as a base station). The cell can belong to a macro base station or a base station corresponding to a small cell. Here, the small cell can include: Metro cell, Micro cell, Pico cell, Femto cell, etc. These small cells have the characteristics of small coverage range and low transmission power, and are suitable for providing high-rate data transmission services.

[0038] Exemplarily, Figure 1A is a schematic diagram of the architecture of a communication system provided by the embodiments of the present application. As Figure 1A shown, the communication system 100 can include a network device 110. The network device 110 can be a device that communicates with a terminal device 120 (or referred to as a communication terminal, terminal). The network device 110 can provide communication coverage for a specific geographical area and can communicate with terminal devices located within the coverage area.

[0039] Figure 1A Exemplarily, one network device and two terminal devices are shown. Optionally, the communication system 100 can include multiple network devices and the coverage range of each network device can include other numbers of terminal devices. The embodiments of the present application do not limit this.

[0040] Exemplarily, Figure 1B is another schematic diagram of the architecture of a communication system provided by the embodiments of the present application. Please refer to Figure 1B , which includes a terminal device 1101 and a satellite 1102. Wireless communication can be carried out between the terminal device 1101 and the satellite 1102. The network formed between the terminal device 1101 and the satellite 1102 can also be referred to as NTN. In Figure 1B the shown architecture of the communication system, the satellite 1102 can have the function of a base station, and direct communication can be carried out between the terminal device 1101 and the satellite 1102. In the system architecture, the satellite 1102 can be referred to as a network device. Optionally, the communication system can include multiple network devices 1102, and the coverage range of each network device 1102 can include other numbers of terminal devices. The embodiments of the present application do not limit this.

[0041] Exemplarily, Figure 1C is another schematic diagram of the architecture of a communication system provided by the embodiments of the present application. Please refer to Figure 1C, including a terminal device 1201, a satellite 1202, and a base station 1203. Wireless communication can be carried out between the terminal device 1201 and the satellite 1202, and communication can be carried out between the satellite 1202 and the base station 1203. The network formed among the terminal device 1201, the satellite 1202, and the base station 1203 can also be referred to as NTN. In Figure 1C In the architecture of the shown communication system, the satellite 1202 may not have the function of a base station, and the communication between the terminal device 1201 and the base station 1203 needs to be relayed through the satellite 1202. In this system architecture, the base station 1203 can be referred to as a network device. Optionally, the communication system may include multiple network devices 1203, and the coverage range of each network device 1203 may include other numbers of terminal devices, which are not limited in the embodiments of the present application.

[0042] It should be noted that Figures 1A - 1C This is only an example to illustrate the system applicable to the present application. Of course, the method shown in the embodiments of the present application can also be applicable to other systems, such as 5G communication systems, LTE communication systems, etc., which are not specifically limited in the embodiments of the present application.

[0043] Optionally, Figures 1A - 1C The shown wireless communication system may further include other network entities such as a Mobility Management Entity (MME) and an Access and Mobility Management Function (AMF), which are not limited in the embodiments of the present application.

[0044] It should be understood that in the embodiments of the present application, a device with communication functions in a network / system can be referred to as a communication device. Taking Figure 1A the shown communication system 100 as an example, the communication device may include a network device 110 and a terminal device 120 with communication functions. The network device 110 and the terminal device 120 can be the specific devices described above, which will not be elaborated here; the communication device may further include other devices in the communication system 100, such as other network entities such as a network controller and a mobility management entity, which are not limited in the embodiments of the present application.

[0045] It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the front and back associated objects.

[0046] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect corresponding relationship between two entities, or may indicate an associated relationship between them, or may be a relationship such as indication and being indicated, configuration and being configured, etc.

[0047] In NTN (Non Terrestrial Network) technology, communication satellites are classified into LEO (Low-Earth Orbit) satellites, MEO (Medium-Earth Orbit) satellites, GEO (Geostationary Earth Orbit) satellites, HEO (High Elliptical Orbit) satellites, etc. according to different orbital heights. At the current stage, the main research focuses on LEO and GEO. Among them, the altitude range of LEO satellites is 500 km to 1500 km, and the corresponding orbital period is about 1.5 hours to 2 hours. The signal propagation delay for single-hop communication between users is generally less than 20 ms. The orbital altitude of GEO satellites is 35786 km, and the rotation period around the earth is 24 hours. The signal propagation delay for single-hop communication between users is generally 250 ms. Therefore, the RTT (Round Trip Time) of the NTN system is much greater than that of the terrestrial communication system.

[0048] In the HARQ (Hybrid Automatic Repeat Requst) mechanism of the NR system, the Stop-and-Wait Protocol is used to send data. In the Stop-and-Wait Protocol, after the sender sends a transport block (TB), it stops and waits for the acknowledgment information. In this way, the sender stops and waits for the acknowledgment after each transmission, which results in a very low user throughput. Therefore, NR uses multiple parallel HARQ processes. When one HARQ process is waiting for the acknowledgment information, the sender can use another HARQ process to continue sending data. These HARQ processes together form a HARQ entity. The HARQ entity combines the Stop-and-Wait Protocol and allows continuous data transmission. HARQ is divided into uplink HARQ and downlink HARQ. Uplink HARQ is for uplink data transmission, and downlink HARQ is for downlink data transmission. The two are independent of each other.

[0049] Based on the current NR protocol regulations, the terminal device has its own HARQ entity for each serving cell. Each HARQ entity maintains a set of parallel downlink HARQ processes and a set of parallel uplink HARQ processes. Currently, each uplink and downlink carrier supports a maximum of 16 HARQ processes. The base station can semi-statically configure and indicate the maximum number of HARQ processes to the terminal device through RRC signaling according to the network device deployment situation. If the network device does not provide the corresponding configuration parameters, the default number of downlink HARQ processes is 8, and the maximum number of HARQ processes supported by each uplink carrier is always 16.

[0050] Figure 2 Taking downlink transmission as an example, the relationship between the supported number of HARQ processes and the RTT is described. If the maximum number of HARQ processes configured for the terminal device is 16, then when the RTT is less than 16 ms, it does not affect the maximum throughput of the terminal device. Or rather, if the RTT is less than 16 ms, when there is traffic to be transmitted, the terminal device always has parallel HARQ processes available for data transmission. Of course, if the RTT is much greater than 16 ms, then it is possible that all the HARQ processes of the terminal device are used for data transmission and no feedback from the network device is obtained, resulting in a situation where the terminal device has traffic to be transmitted but no HARQ processes are available for use, thereby affecting the throughput of data transmission on the terminal device side.

[0051] However, as described above, in the NTN system, due to the long communication distance between the terminal device and the network device (i.e., the satellite), the RTT of signal transmission is very large, much larger than that of the terrestrial communication system. Therefore, the HARQ mechanism in the above NR system is not applicable to the NTN system. Hence, the HARQ mechanism of the above NR system is enhanced. Among them, this enhancement includes HARQ process deactivation.

[0052] The network device can configure the de - enabling of one or some downlink HARQ processes for the terminal device. For the downlink HARQ processes configured for de - enabling, the network device does not need to receive the HARQ - ACK information corresponding to the TB transmitted in this HARQ process, and can reuse this HARQ process for data transmission. The network device can also configure the de - enabling of one or some uplink HARQ processes for the terminal device. For the uplink HARQ processes configured for de - enabling, the network device does not need to receive the PUSCH transmitted by the terminal device through this HARQ process, and can reuse this HARQ process for the transmission of other PUSCHs. Thus, the network device can use the de - enabled downlink / uplink HARQ processes to schedule multiple downlink / uplink data packets for the terminal device, thereby increasing the data transmission throughput and reducing the impact brought by the RTT. The physical channel transmission scheduled by reusing this HARQ process can be a new transmission or a re - transmission. If the physical channel transmission scheduled by reusing this HARQ process is a re - transmission, it can be considered as a blind re - transmission of the channel. Blind re - transmission of the channel is a technology to improve the reliability of data transmission.

[0053] Optionally, for downlink transmission or uplink transmission using the configured de - enabled HARQ process, transmission methods such as slot aggregation, repeated transmission, and scheduled blind re - transmission of the same transport block can be adopted to improve the reliability of data transmission.

[0054] Please refer to Figure 3 , for example, for HARQ process 7 with HARQ - ACK feedback configured for de - enabling, the network device can use DCI 0, DCI 1, and DCI 2 to schedule the transmission of PDSCH 0, PDSCH 1, and PDSCH 2. When the terminal device receives the NDI information in the DCI scheduled for this HARQ process 7 flipped, it indicates that this HARQ process 7 is used to transmit a new data packet. When the terminal device receives the NDI information in the DCI scheduled for this HARQ process 7 not flipped, it indicates that this HARQ process 7 is used to transmit a re - transmission of the previous data packet. However, when the terminal device only receives DCI 0 and DCI 2 and does not receive DCI 1, the terminal device will consider that the transport block carried in PDSCH 2 is the same as the transport block carried in PDSCH 0. In fact, the transport block carried in PDSCH 2 sent by the network device and the transport block carried in PDSCH 0 are different transport blocks, resulting in inconsistent understandings between the terminal device and the network device.

[0055] The following embodiments of this application will elaborate in detail on how to ensure that the terminal device and the network device have consistent understandings of data transmission in the NTN system.

[0056] Embodiment 1

[0057] Please refer to Figure 4 , a channel transmission method provided for Embodiment 1 of this application. The method includes:

[0058] S210, a terminal device receives first downlink control information DCI (Downlink Control Information), the first DCI schedules a first hybrid automatic repeat request HARQ process to transmit a first physical channel carrying a first transport block TB, and the first DCI corresponds to first information;

[0059] S220, when the first new data indication NDI (New Data Indication) information in the first DCI is the same as second NDI information, or when the first DCI does not include the first NDI information, the terminal device determines whether the first TB is the same as a second TB according to the first information; wherein, the second NDI is the NDI in a second DCI, and the second DCI is the DCI that the terminal device received previously and used to schedule the second physical channel carrying the second TB for the first HARQ (Hybrid Automatic Repeat Requst) process. Specifically, when the NDI information in the first DCI is the same as the second NDI information, the first TB and the second TB are not necessarily the same, so further judgment needs to be made according to the first information. Or, when the first DCI does not include the first NDI information, the terminal device also cannot determine whether the first TB is the same as the second TB according to the NDI information and can only make a judgment through the first information.

[0060] Specifically, if the first DCI is a downlink grant DCI (DL grant), the first physical channel includes a PDSCH; in S210, the first DCI schedules a first hybrid automatic repeat request HARQ process to transmit a first physical channel carrying a first transport block TB, specifically: the first DCI schedules a first hybrid automatic repeat request HARQ process to transmit a first PDSCH carrying a first transport block TB.

[0061] Specifically, if the first DCI is an uplink grant DCI (UL grant), the first physical channel includes a PUSCH; in S210, the first DCI schedules a first hybrid automatic repeat request HARQ process to transmit a first physical channel carrying a first transport block TB, specifically: the first DCI schedules a first hybrid automatic repeat request HARQ process to transmit a first PUSCH carrying a first transport block TB.

[0062] Specifically, if the first physical channel is PDSCH, the second physical channel is also PDSCH.

[0063] Specifically, if the first physical channel is PUSCH, the second physical channel is also PUSCH.

[0064] It should be understood that this application can also be used in other transmission scenarios where a control channel schedules a data channel. For example, it can be applied to the communication between terminal devices. In this case, the downlink control information corresponds to the control information in the Physical Sidelink Control Channel (PSCCH), and the physical channel corresponds to the Physical Sidelink Shared Channel (PSSCH). This application is not limited thereto.

[0065] It should also be understood that if the first NDI information is flipped, or in other words, the first NDI information is different from the second NDI information in the second DCI, the terminal device can determine that the currently received data packet is a new transmission, that is, the first TB is different from the second TB.

[0066] Optionally, the first HARQ process corresponds to a deactivated state; or, the first HARQ process is configured to feedback deactivation.

[0067] Specifically, if the first physical channel is PDSCH, the first HARQ process is a downlink HARQ process.

[0068] Specifically, if the first physical channel is PUSCH, the first HARQ process is an uplink HARQ process.

[0069] Optionally, if the first physical channel includes a PDSCH (Physical Downlink Shared Channel), the first information includes at least one of the following: MCS (Modulation and coding scheme) information, RV (Redundancy Version) information, time-domain resource location and frequency-domain resource location information, DAI (Downlink Assignment Index) information, PUCCH (Physical Uplink Control Channel) resource information, physical downlink shared channel PDSCH group identification information, PDSCH-to-HARQ feedback timing information, NFI (New feedback indicator) information, antenna port information, transmission configuration indication TCI (Transmission configuration indication) information, code block group transmission information CBGTI (CBG transmission information, CBGTI), CBG flushing out information (CBG flushing out information, CBGFI), demodulation reference signal DMRS (DeModulationReference Signal) sequence initialization indication information, priority indication information, and time window information.

[0070] Optionally, if the first physical channel includes a physical uplink shared channel PUSCH, the first information includes at least one of the following: modulation and coding strategy MCS (Modulation and Coding Scheme) information, redundancy version RV information, time-domain resource location and frequency-domain resource location information, downlink assignment indication DAI information, DFI (downlinkfeedbackindicator) information, precoding and layer indication information, antenna port information, code block group transmission information CBGTI, demodulation reference signal DMRS sequence initialization indication information, priority indication information, and time window.

[0071] Optionally, the terminal device determines that the first TB is the same as the second TB, including: the terminal device assumes that the first TB is the same as the second TB.

[0072] Optionally, the terminal device determines that the first TB is different from the second TB, including: the terminal device assumes that the first TB is different from the second TB.

[0073] Optionally, the first information includes RV information and / or DAI information, and the DAI information includes DAI count information; then in S220, the terminal device determines whether the first TB is the same as the second TB according to the first information, including:

[0074] When the first DCI includes first DAI count information and the second DCI includes second DAI count information, if the first DAI count information is the same as the second DAI count information, the terminal device determines that the first TB is the same as the second TB; or, if the first DAI count information is different from the second DAI count information, the terminal device determines that the first TB is different from the second TB; or,

[0075] When the first DCI does not include first DAI count information, if the RV information in the first DCI indicates a value other than 0, the terminal device determines that the first TB is the same as the second TB; or, if the RV information in the first DCI indicates 0, the terminal device determines that the first TB is different from the second TB.

[0076] It should be understood that in the above implementation, the terminal device does not expect the network device to schedule the transmission of other HARQ processes during the process of scheduling the blind retransmission of the same HARQ process. In some cases, during the process of being scheduled by the network device to use the same HARQ process for transmission, the terminal device may also be scheduled to use other HARQ processes for transmission. Therefore, this application also includes other optional implementation manners.

[0077] Optionally, the first information includes RV information and / or DAI information, and the DAI information includes DAI count information; then in S220, the terminal device determines whether the first TB is the same as the second TB according to the first information, including:

[0078] When the first DCI includes first DAI count information, if the first DAI count information is the same as the third DAI count information in the third DCI, the terminal device determines that the first TB is the same as the second TB; or, if the first DAI count information is different from the third DAI count information, the terminal device determines that the first TB is different from the second TB, where the third DCI is the DCI that the terminal device received previously before receiving the first DCI and that is used to schedule the third physical channel for transmitting the third TB of the second HARQ process, and the second HARQ process is the same as the first HARQ process, or the second HARQ process is different from the first HARQ process; or,

[0079] In the case where the first DAI count information is not included in the first DCI, if the RV information in the first DCI indicates a value other than 0, the terminal device determines that the first TB is the same as the second TB; or, if the RV information in the first DCI indicates 0, the terminal device determines that the first TB is different from the second TB.

[0080] The DAI (Downlink assignment index) information field includes C-DAI and / or T-DAI: C-DAI (Counter DAI) information, which is used to determine which downlink transmission within the HARQ feedback window the current DCI-scheduled downlink transmission is. Among them, the sorting method of C-DAI information is sorted according to the detection opportunity order of the PDCCH. T-DAI (Total DAI) information, which is used to determine how many downlink transmissions there are in total within the HARQ feedback window up to the current DCI scheduling. There may be C-DAI and / or T-DAI in the DCI scheduling the PDSCH; there may be T-DAI in the DCI scheduling the PUSCH.

[0081] Since C-DAI is used to indicate which downlink transmission within the HARQ feedback window the current DCI-scheduled downlink transmission is, when the network device schedules the same TB for multiple downlink transmissions, it can be considered that these multiple downlink transmissions correspond to one downlink transmission. Therefore, when retransmitting the TB, the C-DAI value may not increase. Correspondingly, the terminal device can determine whether the received PDSCH transmission is a retransmission or a new transmission based on this feature.

[0082] It should be understood that in the above implementation of "if the first DAI count information is different from the third DAI count information, the terminal device determines that the first TB is different from the second TB", since the terminal device may not detect the DCI sent by the network device, it is possible that the first TB and the second TB scheduled by the network device are the same, but the terminal device thinks that the first TB is different from the second TB. In this case, the HARQ combining gain on the terminal device side is lost, and it will not cause major problems to the system transmission. Therefore, this implementation is also acceptable.

[0083] Optionally, the first physical channel includes PDSCH; then in S220, the terminal device determines whether the first TB is the same as the second TB according to the first information, including:

[0084] The terminal device determines whether the first transport block (TB) is the same as the second TB according to the redundancy version (RV) information and / or the downlink assignment index (DAI) count information in the first downlink control information (DCI). Specifically, if the first DCI includes first DAI count information, the terminal device determines whether the first TB is the same as the second TB according to the first DAI count information; or, if the first DCI does not include the first DAI count information, the terminal device determines whether the first TB is the same as the second TB according to the RV information in the first DCI; or,

[0085] The first physical channel includes a physical uplink shared channel (PUSCH). The terminal device determines whether the first TB is the same as the second TB according to the first information, including:

[0086] The terminal device determines whether the first TB is the same as the second TB according to the RV information in the first DCI.

[0087] Optionally, the terminal device determines whether the first TB is the same as the second TB according to the first DAI count information, including: if the first DAI count information is the same as the second DAI count information in the second DCI, the terminal device determines that the first TB is the same as the second TB; or, if the first DAI count information is different from the second DAI count information, the terminal device determines that the first TB is different from the second TB.

[0088] Optionally, the terminal device determines whether the first TB is the same as the second TB according to the first DAI count information, including: if the first DAI count information is the same as the third DAI count information in the third DCI, the terminal device determines that the first TB is the same as the second TB, or, if the first DAI count information is different from the third DAI count information in the third DCI, the terminal device determines that the first TB is different from the second TB. Herein, the third DCI is the DCI for scheduling the transmission of the third transport block (TB) on the third physical channel received by the terminal device prior to receiving the first DCI. The third physical channel may be transmitted through another hybrid automatic repeat request (HARQ) process other than the first HARQ process, or the third physical channel may also be transmitted through the first HARQ process.

[0089] Optionally, the first physical channel is a physical downlink shared channel (PDSCH), and the third physical channel is also a PDSCH.

[0090] Optionally, the terminal device determines whether the first transport block (TB) is the same as the second TB according to the RV information in the first DCI, including: if the RV information in the first DCI indicates a value other than 0, the terminal device determines that the first TB is the same as the second TB; or, if the RV information in the first DCI indicates 0, the terminal device determines that the first TB is different from the second TB.

[0091] That is to say, for the scheduling of PDSCH, if there is C-DAI in the DCI, the above judgment is made using C-DAI; if there is no C-DAI in the DCI, the above judgment is made using RV; for the scheduling of PUSCH, the above judgment is made using RV.

[0092] Optionally, if the first information includes MCS information, then in S220, the terminal device determines whether the first TB is the same as the second TB according to the first information, including:

[0093] If it is determined according to the MCS information that the transport block size (TBS) of the first TB is the same as the TBS of the second TB, the terminal device determines that the first TB is the same as the second TB; or,

[0094] If it is determined according to the MCS information that the TBS of the first TB is different from the TBS of the second TB, the terminal device determines that the first TB is different from the second TB.

[0095] Optionally, if the first information includes RV information, then in S220, the terminal device determines whether the first TB is the same as the second TB according to the first information, including:

[0096] If the RV information indicates a value other than 0, the terminal device determines that the first TB is the same as the second TB; or,

[0097] If the RV information indicates 0, the terminal device determines that the first TB is different from the second TB.

[0098] Optionally, if the first information includes time domain resource position and frequency domain resource position information, then in S220, the terminal device determines whether the first TB is the same as the second TB according to the first information, including:

[0099] If it is determined according to the time domain resource position and frequency domain resource position information that the size of the time-frequency resource corresponding to the transmission of the first physical channel is the same as the size of the time-frequency resource corresponding to the transmission of the second physical channel, the terminal device determines that the first TB is the same as the second TB; or,

[0100] If it is determined that the size of the time-frequency resource corresponding to the transmission of the first physical channel is different from the size of the time-frequency resource corresponding to the transmission of the second physical channel according to the time-domain resource position and the frequency-domain resource position information, the terminal device determines that the first transport block (TB) is different from the second TB.

[0101] Optionally, if the first information includes Downlink Assignment Index (DAI) information, then in S220, for the terminal device to determine whether the first TB is the same as the second TB according to the first information, it includes:

[0102] If the DAI information corresponding to the first Downlink Control Information (DCI) is the same as the DAI (Downlink Assignment Index) information corresponding to the second DCI, the terminal device determines that the first TB is the same as the second TB; or,

[0103] If the DAI information corresponding to the first DCI is different from the DAI information corresponding to the second DCI, the terminal device determines that the first TB is different from the second TB.

[0104] Optionally, if the first information includes antenna port information, then in S220, for the terminal device to determine whether the first TB is the same as the second TB according to the first information, it includes:

[0105] If the antenna port information corresponding to the first DCI is the same as the antenna port information corresponding to the second DCI, the terminal device determines that the first TB is the same as the second TB; or,

[0106] If the antenna port information corresponding to the first DCI is different from the antenna port information corresponding to the second DCI, the terminal device determines that the first TB is different from the second TB.

[0107] Optionally, if the first information includes CBGTI, then in S220, for the terminal device to determine whether the first TB is the same as the second TB according to the first information, it includes:

[0108] If it is determined according to the CBGTI that the number of Codeblock Groups (CBGs) included in the first TB is the same as the number of CBGs included in the second TB, the terminal device determines that the first TB is the same as the second TB; or,

[0109] If it is determined according to the CBGTI that the number of CBGs included in the first TB is different from the number of CBGs included in the second TB, the terminal device determines that the first TB is different from the second TB.

[0110] Optionally, if the first information includes DMRS sequence initialization indication information, then in S220, the terminal device determines whether the first TB is the same as the second TB according to the first information, including:

[0111] If the DMRS sequence initialization indication information corresponding to the first DCI is the same as the DMRS sequence initialization indication information corresponding to the second DCI, the terminal device determines that the first TB is the same as the second TB; or,

[0112] If the DMRS sequence initialization indication information corresponding to the first DCI is different from the DMRS sequence initialization indication information corresponding to the second DCI, the terminal device determines that the first TB is different from the second TB.

[0113] Optionally, if the first information includes priority indication information, then in S220, the terminal device determines whether the first TB is the same as the second TB according to the first information, including:

[0114] If the priority indication information corresponding to the first DCI is the same as the priority indication information corresponding to the second DCI, the terminal device determines that the first TB is the same as the second TB; or,

[0115] If the priority indication information corresponding to the first DCI is different from the priority indication information corresponding to the second DCI, the terminal device determines that the first TB is different from the second TB.

[0116] Optionally, if the first information includes time window information, then in S220, the terminal device determines whether the first TB is the same as the second TB according to the first information, including:

[0117] If the first time window corresponding to the first physical channel determined according to the time window information overlaps at least partially in the time domain with the second time window corresponding to the second physical channel, the terminal device determines that the first TB is the same as the second TB; or,

[0118] If the first time window corresponding to the first physical channel determined according to the time window information does not overlap in the time domain with the second time window corresponding to the second physical channel, the terminal device determines that the first TB is different from the second TB.

[0119] Optionally, if the time window information includes the length of the time window, then in S220, the time window length is preset or configured by the network device.

[0120] Optionally, the starting point of the time window is determined according to the time domain position corresponding to the DCI or PDSCH. For example, the starting point of the time window is the end position of the last symbol of the PDSCH transmission; or, the starting point of the time window is the end position of the last symbol of the PUSCH transmission.

[0121] Optionally, if the first information includes the CBGFI, then in S220, the terminal device determines whether the first TB is the same as the second TB according to the first information, including:

[0122] If the CBGFI indicates a first preset value, the terminal device determines that the first TB is the same as the second TB; or,

[0123] If the CBGFI indicates a second preset value, the terminal device determines that the first TB is different from the second TB;

[0124] wherein, the first preset value and the second preset value are different.

[0125] Optionally, if the first information includes precoding and layer indication information, then in S220, the terminal device determines whether the first TB is the same as the second TB according to the first information, including:

[0126] If it is determined according to the precoding and layer indication information that the number of layers corresponding to the first TB is the same as the number of layers corresponding to the second TB, the terminal device determines that the first TB is the same as the second TB; or,

[0127] If it is determined according to the precoding and layer indication information that the number of layers corresponding to the first TB is different from the number of layers corresponding to the second TB, the terminal device determines that the first TB is different from the second TB.

[0128] Optionally, if the first information includes antenna port information and CBGTI, then in S220, the terminal device determines whether the first TB is the same as the second TB according to the first information, including:

[0129] If the antenna port information corresponding to the first DCI is different from the antenna port information corresponding to the second DCI, or it is determined according to the CBGTI that the number of CBGs included in the first TB is different from the number of CBGs included in the second TB, the terminal device determines that the first TB is different from the second TB.

[0130] Optionally, if the first information includes precoding and layer indication information, antenna port information and CBGTI, then in S220, the terminal device determines whether the first TB is the same as the second TB according to the first information, including:

[0131] If it is determined according to the precoding and layer indication information that the number of layers corresponding to the first TB is different from the number of layers corresponding to the second TB, or the antenna port information corresponding to the first DCI is different from the antenna port information corresponding to the second DCI, or the number of CBGs included in the first TB is different from the number of CBGs included in the second TB according to the CBGTI, the terminal device determines that the first TB is different from the second TB.

[0132] Optionally, the first information includes a PUCCH resource; then in S220, the terminal device determines whether the first TB is the same as the second TB according to the first information, including:

[0133] If the PUCCH resource included in the first information and the PUCCH resource indicated by the PUCCH resource corresponding to the second physical channel are the same PUCCH resource, the terminal device determines that the first TB is the same as the second TB according to the first information; or, if the PUCCH resource included in the first information and the PUCCH resource indicated by the PUCCH resource corresponding to the second physical channel are different PUCCH resources, the terminal device determines that the first TB is different from the second TB according to the first information.

[0134] Optionally, the first information includes a PDSCH-to-HARQ feedback timing; then in S220, the terminal device determines whether the first TB is the same as the second TB according to the first information, including:

[0135] If the PDSCH-to-HARQ feedback timing included in the first information and the PDSCH-to-HARQ feedback timing corresponding to the second physical channel indicate the same value, the terminal device determines that the first TB is the same as the second TB according to the first information; or,

[0136] If the PDSCH-to-HARQ feedback timing included in the first information and the PDSCH-to-HARQ feedback timing corresponding to the second physical channel indicate different values, the terminal device determines that the first TB is different from the second TB according to the first information; or,

[0137] If the PDSCH-to-HARQ feedback timing included in the first information and the PDSCH-to-HARQ feedback timing corresponding to the second physical channel indicate the same time slot, the terminal device determines that the first TB is the same as the second TB according to the first information; or,

[0138] If the PDSCH-to-HARQ feedback timing included in the first information and the PDSCH-to-HARQ feedback timing corresponding to the second physical channel indicate different time slots, the terminal device determines, according to the first information, that the first TB is different from the second TB.

[0139] Optionally, the first information includes NFI information; then in S220, the terminal device determining whether the first TB is the same as the second TB according to the first information includes:

[0140] If the NFI information included in the first information and the NFI information corresponding to the second physical channel indicate the same value, the terminal device determines, according to the first information, that the first TB is the same as the second TB; or,

[0141] If the NFI information included in the first information and the NFI information corresponding to the second physical channel indicate different values, the terminal device determines, according to the first information, that the first TB is different from the second TB.

[0142] Optionally, the first information includes a PDSCH group identifier; then in S220, the terminal device determining whether the first TB is the same as the second TB according to the first information includes:

[0143] If the PDSCH group identifier included in the first information and the PDSCH group identifier corresponding to the second physical channel indicate the same value, the terminal device determines, according to the first information, that the first TB is the same as the second TB; or,

[0144] If the PDSCH group identifier included in the first information and the PDSCH group identifier corresponding to the second physical channel indicate different values, the terminal device determines, according to the first information, that the first TB is different from the second TB.

[0145] Optionally, the first information is TCI; then in S220, the terminal device determining whether the first TB is the same as the second TB according to the first information includes:

[0146] If the TCI included in the first information and the TCI corresponding to the second physical channel indicate the same value, the terminal device determines, according to the first information, that the first TB is the same as the second TB; or,

[0147] If the TCI included in the first information and the TCI corresponding to the second physical channel indicate different values, the terminal device determines, according to the first information, that the first TB is different from the second TB.

[0148] Optionally, when feasible, two or more of the above optional solutions can be combined. That is, the first information may include two or more of the above information. The terminal device jointly determines whether the first TB is the same as the second TB based on the two or more pieces of information, and / or the terminal device selects one of the two or more pieces of information according to the priority judgment order to determine whether the first TB is the same as the second TB. For example, taking the following downlink transmission as an example, the first information includes MCS information, DAI information, and TCI information. Then the terminal device jointly determines whether the first TB is the same as the second TB based on the MCS information, DAI information, and TCI information. Among them, if any one of the MCS information, DAI information, and TCI information included in the first information is different from the MCS information, DAI information, and TCI information corresponding to the second physical channel, the terminal device can confirm that the first TB is different from the second TB.

[0149] In the first specific implementation manner of the present application, during the channel transmission process, the first information is introduced to further determine whether the first TB is the same as the second TB, that is, to determine whether it is a retransmission or a new transmission. Thereby, when the HARQ process is disabled, due to the large RTT, only the NDI information is used to determine whether it is a retransmission or a new transmission, which causes the situation of inconsistent understanding between the network device and the terminal device. For example, as shown above Figure 3 The network device is to perform a new transmission, but the terminal device understands it as a retransmission. Thus, the accuracy of channel transmission is improved.

[0150] Embodiment 2

[0151] Please refer to Figure 5 , a channel transmission device 300 provided for the second embodiment of the present application. The device includes:

[0152] A receiving unit 310, configured to receive a first downlink control information DCI. The first DCI schedules a first hybrid automatic repeat request (HARQ) process to transmit a first physical channel carrying a first transport block (TB). The first DCI corresponds to the first information;

[0153] A confirmation unit 320, configured to determine whether the first TB is the same as the second TB according to the first information when the first new data indication (NDI) information in the first DCI is the same as the second NDI information, or when the first DCI does not include the first NDI information. Wherein, the second NDI is the NDI in a second DCI, and the second DCI is the DCI received by the receiving unit for scheduling the second physical channel carrying the second TB in the previous time for the first HARQ process.

[0154] Optionally, the first HARQ process corresponds to a disenabled state; or, the first HARQ process is configured to feedback disenablement.

[0155] Optionally, the first physical channel includes a Physical Downlink Shared Channel (PDSCH), and the first information includes at least one of the following:

[0156] Modulation and Coding Scheme (MCS) information, Redundancy Version (RV) information, time-domain resource location and frequency-domain resource location information, Downlink Assignment Indicator (DAI) information, Physical Uplink Control Channel (PUCCH) resource information, Physical Downlink Shared Channel (PDSCH) group identification information, PDSCH-to-HARQ feedback timing information, New Feedback Indicator (NFI) information, antenna port information, Transmission Configuration Indicator (TCI) information, Code Block Group Transmission Information (CBGTI), CBG Flush Buffer Information (CBGFI), Demodulation Reference Signal (DMRS) sequence initialization indication information, priority indication information, and time window information.

[0157] Optionally, the first physical channel includes a Physical Uplink Shared Channel (PUSCH), and the first information includes at least one of the following:

[0158] Modulation and Coding Scheme (MCS) information, Redundancy Version (RV) information, time-domain resource location and frequency-domain resource location information, Downlink Assignment Indicator (DAI) information, Downlink Feedback Indicator (DFI) information, precoding and layer indication information, antenna port information, Code Block Group Transmission Information (CBGTI), Demodulation Reference Signal (DMRS) sequence initialization indication information, priority indication information, and time window.

[0159] Optionally, the first information includes RV information and / or DAI information, and the DAI information includes DAI count information; then, the confirmation unit 320 is specifically configured to, when the first New Data Indicator (NDI) information in the first Downlink Control Information (DCI) is the same as the second NDI information, or when the first DCI does not include the first NDI information, in the case where the first DCI includes the first DAI count information, if the first DAI count information is the same as the second DAI count information, determine that the first Transport Block (TB) is the same as the second TB; or, if the first DAI count information is different from the second DAI count information, determine that the first TB is different from the second TB; or,

[0160] in the case where the first DCI does not include the first DAI count information, if the RV information in the first DCI indicates a value other than 0, determine that the first TB is the same as the second TB; or, if the RV information in the first DCI indicates 0, determine that the first TB is different from the second TB.

[0161] Optionally, the first information includes RV information and / or DAI information, and the DAI information includes DAI count information. The confirmation unit 320 is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, in the case that the first DCI includes the first DAI count information, if the first DAI count information is the same as the third DAI count information in the third DCI, determine that the first TB is the same as the second TB; or, if the first DAI count information is different from the third DAI count information, determine that the first TB is different from the second TB, where the third DCI is the DCI received by the receiving unit for scheduling the third physical channel carrying the third TB in the second HARQ process before receiving the first DCI, where the second HARQ process is different from or the same as the first HARQ process; or,

[0162] in the case that the first DCI does not include the first DAI count information, if the RV information in the first DCI indicates a value other than 0, determine that the first TB is the same as the second TB; or, if the RV information in the first DCI indicates 0, determine that the first TB is different from the second TB.

[0163] Optionally, the first physical channel includes PDSCH. The confirmation unit is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, determine whether the first TB is the same as the second TB according to the RV information and / or DAI count information in the first DCI, where, if the first DCI includes the first DAI count information, determine whether the first TB is the same as the second TB according to the first DAI count information; or, if the first DCI does not include the first DAI count information, determine whether the first TB is the same as the second TB according to the RV information in the first DCI; or,

[0164] the first physical channel includes PUSCH. The confirmation unit is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, determine whether the first TB is the same as the second TB according to the RV information in the first DCI.

[0165] Among them, for the scheduling of PDSCH, if there is C-DAI in the DCI, use C-DAI for the above judgment; if there is no C-DAI in the DCI, use RV for the above judgment; for the scheduling of PUSCH, use RV for the above judgment.

[0166] Optionally, the first information includes MCS information;

[0167] Then, the confirmation unit 320 is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if it is determined according to the MCS information that the transport block size TBS of the first TB is the same as the TBS of the second TB, determine that the first TB is the same as the second TB; or, if it is determined according to the MCS information that the TBS of the first TB is different from the TBS of the second TB, determine that the first TB is different from the second TB.

[0168] Optionally, the first information includes RV information;

[0169] Then, the confirmation unit 320 is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if the RV information indicates a value other than 0, determine that the first TB is the same as the second TB; or, if the RV information indicates 0, determine that the first TB is different from the second TB.

[0170] Optionally, the first information includes time domain resource position and frequency domain resource position information;

[0171] Then, the confirmation unit 320 is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if it is determined according to the time domain resource position and frequency domain resource position information that the size of the time-frequency resource corresponding to the transmission of the first physical channel is the same as the size of the time-frequency resource corresponding to the transmission of the second physical channel, determine that the first TB is the same as the second TB; or, if it is determined according to the time domain resource position and frequency domain resource position information that the size of the time-frequency resource corresponding to the transmission of the first physical channel is different from the size of the time-frequency resource corresponding to the transmission of the second physical channel, determine that the first TB is different from the second TB.

[0172] Optionally, the first information includes DAI information;

[0173] Then the confirmation unit 320 is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if the DAI information corresponding to the first DCI is the same as the DAI information corresponding to the second DCI, determine that the first TB is the same as the second TB; or, if the DAI information corresponding to the first DCI is different from the DAI information corresponding to the second DCI, determine that the first TB is different from the second TB.

[0174] Optionally, the first information includes antenna port information;

[0175] Then the confirmation unit 320 is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if the antenna port information corresponding to the first DCI is the same as the antenna port information corresponding to the second DCI, determine that the first TB is the same as the second TB; or, if the antenna port information corresponding to the first DCI is different from the antenna port information corresponding to the second DCI, determine that the first TB is different from the second TB.

[0176] Optionally, the first information includes CBGTI;

[0177] Then the confirmation unit 320 is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if it is determined according to the CBGTI that the number of CBGs included in the first TB is the same as the number of CBGs included in the second TB, determine that the first TB is the same as the second TB; or, if it is determined according to the CBGTI that the number of CBGs included in the first TB is different from the number of CBGs included in the second TB, determine that the first TB is different from the second TB.

[0178] Optionally, the first information includes DMRS sequence initialization indication information;

[0179] Then, the confirmation unit 320 is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if the DMRS sequence initialization indication information corresponding to the first DCI is the same as the DMRS sequence initialization indication information corresponding to the second DCI, determine that the first TB is the same as the second TB; or, if the DMRS sequence initialization indication information corresponding to the first DCI is different from the DMRS sequence initialization indication information corresponding to the second DCI, determine that the first TB is different from the second TB.

[0180] Optionally, the first information includes priority indication information;

[0181] Then, the confirmation unit 320 is collectively configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if the priority indication information corresponding to the first DCI is the same as the priority indication information corresponding to the second DCI, determine that the first TB is the same as the second TB; or, if the priority indication information corresponding to the first DCI is different from the priority indication information corresponding to the second DCI, determine that the first TB is different from the second TB.

[0182] Optionally, the first information includes time window information;

[0183] Then, the confirmation unit 320 is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if the first time window corresponding to the first physical channel determined according to the time window information overlaps at least partially in the time domain with the second time window corresponding to the second physical channel, determine that the first TB is the same as the second TB; or, if the first time window corresponding to the first physical channel determined according to the time window information does not overlap in the time domain with the second time window corresponding to the second physical channel, determine that the first TB is different from the second TB.

[0184] Optionally, the time window information includes the length of the time window, and the time window length is preset or configured by a network device.

[0185] Optionally, the first information includes CBGFI;

[0186] Then the confirmation unit 320 is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if the CBGFI indicates a first preset value, determine that the first TB is the same as the second TB; or, if the CBGFI indicates a second preset value, determine that the first TB is different from the second TB; where the first preset value and the second preset value are different.

[0187] Optionally, the first information includes precoding and layer indication information;

[0188] Then the confirmation unit 320 is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if it is determined according to the precoding and layer indication information that the number of layers corresponding to the first TB is the same as the number of layers corresponding to the second TB, determine that the first TB is the same as the second TB; or, if it is determined according to the precoding and layer indication information that the number of layers corresponding to the first TB is different from the number of layers corresponding to the second TB, determine that the first TB is different from the second TB.

[0189] Optionally, the first information includes antenna port information and CBGTI;

[0190] Then the confirmation unit 320 is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if the antenna port information corresponding to the first DCI is different from the antenna port information corresponding to the second DCI, or if it is determined according to the CBGTI that the number of CBGs included in the first TB is different from the number of CBGs included in the second TB, determine that the first TB is different from the second TB.

[0191] Optionally, the first information includes precoding and layer indication information, antenna port information and CBGTI;

[0192] Then the confirmation unit 320 is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if it is determined according to the precoding and layer indication information that the number of layers corresponding to the first TB is different from the number of layers corresponding to the second TB; or, the antenna port information corresponding to the first DCI is different from the antenna port information corresponding to the second DCI; or, if it is determined according to the CBGTI that the number of CBGs included in the first TB is different from the number of CBGs included in the second TB, determine that the first TB is different from the second TB.

[0193] Optionally, the first information includes a PUCCH resource; the confirmation unit 320 is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first DCI does not include the first NDI information, if the PUCCH resource included in the first information and the PUCCH resource indicated by the second physical channel correspond to the same PUCCH resource, determine that the first TB is the same as the second TB according to the first information; or, if the PUCCH resource included in the first information and the PUCCH resource indicated by the second physical channel correspond to different PUCCH resources, determine that the first TB is different from the second TB according to the first information.

[0194] Optionally, the first information includes a PDSCH-to-HARQ feedback timing; the confirmation unit 320 is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first DCI does not include the first NDI information, if the PDSCH-to-HARQ feedback timing included in the first information and the PDSCH-to-HARQ feedback timing corresponding to the second physical channel indicate the same value, determine that the first TB is the same as the second TB according to the first information; or, if the PDSCH-to-HARQ feedback timing included in the first information and the PDSCH-to-HARQ feedback timing corresponding to the second physical channel indicate different values, determine that the first TB is different from the second TB according to the first information; or, if the PDSCH-to-HARQ feedback timing included in the first information and the PDSCH-to-HARQ feedback timing corresponding to the second physical channel indicate the same time slot, determine that the first TB is the same as the second TB according to the first information; or, if the PDSCH-to-HARQ feedback timing included in the first information and the PDSCH-to-HARQ feedback timing corresponding to the second physical channel indicate different time slots, determine that the first TB is different from the second TB according to the first information.

[0195] Optionally, the first information includes NFI information; the confirmation unit 320 is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first DCI does not include the first NDI information, if the NFI information included in the first information and the NFI information corresponding to the second physical channel indicate the same value, determine that the first TB is the same as the second TB according to the first information; or, if the NFI information included in the first information and the NFI information corresponding to the second physical channel indicate different values, determine that the first TB is different from the second TB according to the first information.

[0196] Optionally, the first information includes a PDSCH group identifier; then the confirmation unit 320 is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first DCI does not include the first NDI information, if the PDSCH group identifier included in the first information and the PDSCH group identifier corresponding to the second physical channel indicate the same value, determine that the first TB is the same as the second TB according to the first information; or, if the PDSCH group identifier included in the first information and the PDSCH group identifier corresponding to the second physical channel indicate different values, determine that the first TB is different from the second TB according to the first information.

[0197] Optionally, the first information is TCI; then the confirmation unit 320 is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first DCI does not include the first NDI information, if the TCI included in the first information and the TCI corresponding to the second physical channel indicate the same value, determine that the first TB is the same as the second TB according to the first information; or, if the TCI included in the first information and the TCI corresponding to the second physical channel indicate different values, determine that the first TB is different from the second TB according to the first information.

[0198] Optionally, when feasible, two or more of the above optional solutions can be combined. That is, the first information may include two or more of the above information, and the terminal device jointly determines whether the first TB is the same as the second TB according to the two or more pieces of information. For example, taking downlink transmission as an example, the first information includes MCS information, DAI information, and TCI information, then the terminal device jointly determines whether the first TB is the same as the second TB according to the MCS information, DAI information, and TCI information. Among them, if any one of the MCS information, DAI information, and TCI information included in the first information is different from the MCS information, DAI information, and TCI information corresponding to the second physical channel, the terminal device can confirm that the first TB is different from the second TB.

[0199] For the parts that are not detailed in the second embodiment, please refer to the same or corresponding parts in the first embodiment above, and no repeated description will be made here.

[0200] Embodiment 3

[0201] Please refer to Figure 6 , a schematic structural diagram of a channel transmission device 400 provided by the third embodiment of the present invention. The compression device 400 includes: a processor 410 and a memory 420. The processor 410 and the memory 420 are communicatively connected to each other through a bus system.

[0202] The memory 420 is a computer-readable storage medium on which a program that can run on the processor 410 is stored. The processor 410 invokes the program in the memory 420 to execute the corresponding processes implemented by the network device in the method for uplink transmission provided in the foregoing Embodiment 1, or executes the corresponding processes implemented by the terminal device in the method for uplink transmission provided in the foregoing Embodiment 1.

[0203] The processor 410 may be an independent component or a collective term for multiple processing elements. For example, it may be a CPU, an ASIC, or one or more integrated circuits configured to implement the above method, such as at least one microprocessor DSP, or at least one programmable gate array FPGA, etc.

[0204] Those skilled in the art should be able to realize that in one or more of the above examples, the functions described in the specific embodiments of the present application can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be achieved by a processor executing software instructions. The software instructions can consist of corresponding software modules. The software modules can be stored in a computer-readable storage medium, which can be any available medium accessible by a computer or a data storage device such as a server or a data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., Digital Video Disc (DVD)), or a semiconductor medium (e.g., Solid State Disk (SSD)), etc. The computer-readable storage medium includes, but is not limited to, Random Access Memory (RAM), flash memory, Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), registers, hard disks, removable hard disks, CD-ROMs, or any other form of storage medium well-known in the art. An exemplary computer-readable storage medium is coupled to the processor, enabling the processor to read information from and write information to the computer-readable storage medium. Of course, the computer-readable storage medium can also be a component of the processor. The processor and the computer-readable storage medium can be located in an ASIC. Additionally, the ASIC can be located in an access network device, a target network device, or a core network device. Of course, the processor and the computer-readable storage medium can also exist as discrete components in an access network device, a target network device, or a core network device. When implemented using software, it can also be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer or a chip, the processes or functions described in the specific embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.The computer program instructions can be stored in the above-mentioned computer-readable storage medium, or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wirelessly (such as infrared, wireless, microwave, etc.).

[0205] The above embodiments illustrate but do not limit the present invention, and those skilled in the art can design multiple alternative examples within the scope of the claims. Those skilled in the art should realize that the present application is not limited to the exact structure described above and shown in the drawings. Without violating the scope of the present invention as defined in the appended claims, appropriate adjustments, modifications, equivalent replacements, improvements, etc. can be made to the specific implementation solutions. Therefore, any modifications and changes made in accordance with the concept and principle of the present invention are within the scope of the present invention as defined in the appended claims.

Claims

1. A method for channel transmission, characterized in that, The method includes: The terminal device receives first downlink control information (DCI). The first DCI schedules a first hybrid automatic repeat request (HARQ) process to transmit a first physical channel carrying a first transport block (TB), and the first DCI corresponds to first information. When the first new data indication (NDI) information in the first DCI is the same as second NDI information, or when the first DCI does not include the first NDI information, the terminal device determines whether the first TB is the same as a second TB according to the first information. Wherein, the second NDI is the NDI in a second DCI, and the second DCI is the DCI that the terminal device received previously and used to schedule the second physical channel carrying the second TB for transmission by the first HARQ process. Wherein: The first physical channel includes a physical downlink shared channel (PDSCH), and the first information includes at least one of the following: modulation and coding strategy (MCS) information, redundancy version (RV) information, time-domain resource location and frequency-domain resource location information, downlink allocation indicator (DAI) information, physical uplink control channel (PUCCH) resource information, PDSCH group identification information, PDSCH-to-HARQ feedback timing information, new feedback indicator (NFI) information, antenna port information, transmission configuration indicator (TCI) information, code block group transmission information (CBGTI), CBG clear buffer information (CBGFI), demodulation reference signal (DMRS) sequence initialization indication information, priority indication information, and time window information; or The first physical channel includes a physical uplink shared channel (PUSCH), and the first information includes at least one of the following: MCS information, RV information, time-domain resource location and frequency-domain resource location information, DAI information, downlink feedback indicator (DFI) information, precoding and layer indication information, antenna port information, CBGTI, DMRS sequence initialization indication information, priority indication information, and time window.

2. The method according to claim 1, characterized in that, The first HARQ process corresponds to a deactivated state; or, the first HARQ process is configured to feedback deactivation.

3. The method according to claim 1 or 2, characterized in that, The first information includes MCS information. The terminal device determines whether the first TB is the same as the second TB according to the first information, including: If it is determined according to the MCS information that the transport block size (TBS) of the first TB is the same as the TBS of the second TB, the terminal device determines that the first TB is the same as the second TB; or, If it is determined according to the MCS information that the TBS of the first TB is different from the TBS of the second TB, the terminal device determines that the first TB is different from the second TB.

4. The method according to claim 1 or 2, characterized in that, The first information includes RV information. The terminal device determines whether the first TB is the same as the second TB according to the first information, including: If the RV information indicates a value other than 0, the terminal device determines that the first TB is the same as the second TB; or, If the RV information indicates 0, the terminal device determines that the first TB is different from the second TB.

5. The method according to claim 1 or 2, characterized in that, The first information includes time-domain resource location and frequency-domain resource location information. For the terminal device to determine whether the first TB is the same as the second TB according to the first information, it includes: If it is determined according to the time-domain resource location and frequency-domain resource location information that the size of the time-frequency resource corresponding to the transmission of the first physical channel is the same as the size of the time-frequency resource corresponding to the transmission of the second physical channel, the terminal device determines that the first TB is the same as the second TB; or, If it is determined according to the time-domain resource location and frequency-domain resource location information that the size of the time-frequency resource corresponding to the transmission of the first physical channel is different from the size of the time-frequency resource corresponding to the transmission of the second physical channel, the terminal device determines that the first TB is different from the second TB.

6. The method according to claim 1 or 2, characterized in that, The first information includes DAI information. For the terminal device to determine whether the first TB is the same as the second TB according to the first information, it includes: If the DAI information corresponding to the first DCI is the same as the DAI information corresponding to the second DCI, the terminal device determines that the first TB is the same as the second TB; or, If the DAI information corresponding to the first DCI is different from the DAI information corresponding to the second DCI, the terminal device determines that the first TB is different from the second TB.

7. The method according to claim 1 or 2, characterized in that, The first information includes antenna port information. For the terminal device to determine whether the first TB is the same as the second TB according to the first information, it includes: If the antenna port information corresponding to the first DCI is the same as the antenna port information corresponding to the second DCI, the terminal device determines that the first TB is the same as the second TB; or, If the antenna port information corresponding to the first DCI is different from the antenna port information corresponding to the second DCI, the terminal device determines that the first TB is different from the second TB.

8. The method according to claim 1 or 2, characterized in that The first information includes CBGTI. For the terminal device to determine whether the first TB is the same as the second TB according to the first information, it includes: If it is determined according to the CBGTI that the number of CBGs included in the first TB is the same as the number of CBGs included in the second TB, the terminal device determines that the first TB is the same as the second TB; or, If it is determined according to the CBGTI that the number of CBGs included in the first TB is different from the number of CBGs included in the second TB, the terminal device determines that the first TB is different from the second TB.

9. The method according to claim 1 or 2, characterized in that, The first information includes DMRS sequence initialization indication information. For the terminal device to determine whether the first TB is the same as the second TB according to the first information, it includes: If the DMRS sequence initialization indication information corresponding to the first DCI is the same as the DMRS sequence initialization indication information corresponding to the second DCI, the terminal device determines that the first TB is the same as the second TB; or, If the DMRS sequence initialization indication information corresponding to the first DCI is different from the DMRS sequence initialization indication information corresponding to the second DCI, the terminal device determines that the first TB is different from the second TB.

10. The method according to claim 1 or 2, characterized in that, The first information includes priority indication information. The terminal device determines whether the first TB is the same as the second TB according to the first information, including: If the priority indication information corresponding to the first DCI is the same as the priority indication information corresponding to the second DCI, the terminal device determines that the first TB is the same as the second TB; or, If the priority indication information corresponding to the first DCI is different from the priority indication information corresponding to the second DCI, the terminal device determines that the first TB is different from the second TB.

11. The method according to claim 1 or 2, characterized in that, The first information includes time window information. The terminal device determines whether the first TB is the same as the second TB according to the first information, including: If the first time window corresponding to the first physical channel determined according to the time window information overlaps at least partially in the time domain with the second time window corresponding to the second physical channel, the terminal device determines that the first TB is the same as the second TB; or, If the first time window corresponding to the first physical channel determined according to the time window information does not overlap in the time domain with the second time window corresponding to the second physical channel, the terminal device determines that the first TB is different from the second TB.

12. The method according to claim 11, wherein The time window information includes the length of the time window, and the time window length is preset or configured by the network device.

13. The method according to claim 1 or 2, characterized in that, The first physical channel includes the PDSCH, and the first information includes CBGFI. The terminal device determines whether the first TB is the same as the second TB according to the first information, including: If the CBGFI indicates a first preset value, the terminal device determines that the first TB is the same as the second TB; or, If the CBGFI indicates a second preset value, the terminal device determines that the first TB is different from the second TB; wherein, the first preset value and the second preset value are different.

14. The method according to claim 1 or 2, characterized in that, The first physical channel includes the PUSCH, and the first information includes precoding and layer indication information. The terminal device determines whether the first TB is the same as the second TB according to the first information, including: If the number of layers corresponding to the first TB determined according to the precoding and layer indication information is the same as the number of layers corresponding to the second TB, the terminal device determines that the first TB is the same as the second TB; or, If the number of layers corresponding to the first TB determined according to the precoding and layer indication information is different from the number of layers corresponding to the second TB, the terminal device determines that the first TB is different from the second TB.

15. The method according to claim 1 or 2, characterized in that, The first information includes antenna port information and CBGTI. The terminal device determines whether the first TB is the same as the second TB according to the first information, including: If the antenna port information corresponding to the first DCI is different from the antenna port information corresponding to the second DCI, or the number of CBGs included in the first TB determined according to the CBGTI is different from the number of CBGs included in the second TB, the terminal device determines that the first TB is different from the second TB.

16. The method according to claim 1 or 2, characterized in that, The first physical channel includes the PUSCH, and the first information includes precoding and layer indication information, antenna port information, and CBGTI. For the terminal device to determine whether the first TB is the same as the second TB according to the first information, it includes: If the number of layers corresponding to the first TB determined according to the precoding and layer indication information is different from the number of layers corresponding to the second TB, or the antenna port information corresponding to the first DCI is different from the antenna port information corresponding to the second DCI, or the number of CBGs included in the first TB determined according to the CBGTI is different from the number of CBGs included in the second TB, the terminal device determines that the first TB is different from the second TB.

17. The method according to claim 1 or 2, characterized in that, The first physical channel includes the PDSCH, the first information includes RV information and / or DAI information, and the DAI information includes DAI count information. For the terminal device to determine whether the first TB is the same as the second TB according to the first information, it includes: In the case where the first DCI includes the first DAI count information, if the first DAI count information is the same as the third DAI count information in the third DCI, the terminal device determines that the first TB is the same as the second TB; or, if the first DAI count information is different from the third DAI count information, the terminal device determines that the first TB is different from the second TB. The third DCI is the DCI for scheduling the transmission of the third physical channel carrying the third TB in the previous time before the terminal device receives the first DCI for the second HARQ process, where the second HARQ process and the first HARQ process may be different or the same; or, In the case where the first DCI does not include the first DAI count information, if the RV information in the first DCI indicates a value other than 0, the terminal device determines that the first TB is the same as the second TB; or, if the RV information in the first DCI indicates 0, the terminal device determines that the first TB is different from the second TB.

18. The method according to claim 1 or 2, characterized in that, The first physical channel includes the PDSCH. For the terminal device to determine whether the first TB is the same as the second TB according to the first information, it includes: The terminal device determines whether the first transport block (TB) is the same as the second TB according to the RV information and / or DAI count information in the first DCI. Among them, if the first DCI includes the first DAI count information, the terminal device determines whether the first TB is the same as the second TB according to the first DAI count information; or, if the first DCI does not include the first DAI count information, the terminal device determines whether the first TB is the same as the second TB according to the RV information in the first DCI; or, The first physical channel includes a Physical Uplink Shared Channel (PUSCH). The terminal device determines whether the first TB is the same as the second TB according to the first information, including: The terminal device determines whether the first TB is the same as the second TB according to the RV information in the first DCI.

19. A channel transmission device, characterized in that, The apparatus includes: a receiving unit, configured to receive a first Downlink Control Information (DCI), where the first DCI schedules a first Hybrid Automatic Repeat reQuest (HARQ) process to transmit a first physical channel carrying a first transport block (TB), and the first DCI corresponds to first information; a confirmation unit, configured to determine whether the first TB is the same as the second TB according to the first information when the first New Data Indicator (NDI) information in the first DCI is the same as the second NDI information, or when the first DCI does not include the first NDI information; where the second NDI is the NDI in a second DCI, and the second DCI is the DCI of the previous time received by the receiving unit for scheduling a second physical channel carrying the second TB for the first HARQ process, Among them: The first physical channel includes a Physical Downlink Shared Channel (PDSCH). The first information includes at least one of the following: Modulation and Coding Scheme (MCS) information, Redundancy Version (RV) information, time domain resource position and frequency domain resource position information, Downlink Assignment Indicator (DAI) information, Physical Uplink Control Channel (PUCCH) resource information, Physical Downlink Shared Channel (PDSCH) group identification information, PDSCH-to-HARQ feedback timing information, New Feedback Indicator (NFI) information, antenna port information, Transmission Configuration Indicator (TCI) information, Code Block Group Transmission Information (CBGTI), CBG Clear Buffer Information (CBGFI), Demodulation Reference Signal (DMRS) sequence initialization indication information, priority indication information, and time window information; or The first physical channel includes a Physical Uplink Shared Channel (PUSCH). The first information includes at least one of the following: Modulation and Coding Scheme (MCS) information, Redundancy Version (RV) information, time domain resource position and frequency domain resource position information, Downlink Assignment Indicator (DAI) information, Downlink Feedback Indicator (DFI) information, precoding and layer indication information, antenna port information, Code Block Group Transmission Information (CBGTI), Demodulation Reference Signal (DMRS) sequence initialization indication information, priority indication information, and time window.

20. The device according to claim 19, characterized in that, The first HARQ process corresponds to a deactivated state; or, the first HARQ process is configured to feedback deactivation.

21. The device according to claim 19 or 20, characterized in that, The first information includes MCS information; The confirmation unit is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if it is determined according to the MCS information that the transport block size TBS of the first TB is the same as the TBS of the second TB, determine that the first TB is the same as the second TB; or, if it is determined according to the MCS information that the TBS of the first TB is different from the TBS of the second TB, determine that the first TB is different from the second TB.

22. The device according to claim 19 or 20, characterized in that, The first information includes RV information; The confirmation unit is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if the RV information indicates a value other than 0, determine that the first TB is the same as the second TB; or, if the RV information indicates 0, determine that the first TB is different from the second TB.

23. The device according to claim 19 or 20, characterized in that, The first information includes time domain resource position and frequency domain resource position information; The confirmation unit is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if it is determined according to the time domain resource position and frequency domain resource position information that the size of the time-frequency resource corresponding to the first physical channel transmission is the same as the size of the time-frequency resource corresponding to the second physical channel transmission, determine that the first TB is the same as the second TB; or, if it is determined according to the time domain resource position and frequency domain resource position information that the size of the time-frequency resource corresponding to the first physical channel transmission is different from the size of the time-frequency resource corresponding to the second physical channel transmission, determine that the first TB is different from the second TB.

24. The device according to claim 19 or 20, characterized in that, The first information includes DAI information; The confirmation unit is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if the DAI information corresponding to the first DCI is the same as the DAI information corresponding to the second DCI, determine that the first TB is the same as the second TB; or, if the DAI information corresponding to the first DCI is different from the DAI information corresponding to the second DCI, determine that the first TB is different from the second TB.

25. The device according to claim 19 or 20, characterized in that, The first information includes antenna port information; The confirmation unit is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if the antenna port information corresponding to the first DCI is the same as the antenna port information corresponding to the second DCI, determine that the first TB is the same as the second TB; Alternatively, if the antenna port information corresponding to the first DCI is different from the antenna port information corresponding to the second DCI, it is determined that the first TB is different from the second TB.

26. The device according to claim 19 or 20, characterized in that, The first information includes CBGTI; Then, the confirmation unit is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if it is determined according to the CBGTI that the number of CBGs included in the first TB is the same as the number of CBGs included in the second TB, it is determined that the first TB is the same as the second TB; or, if it is determined according to the CBGTI that the number of CBGs included in the first TB is different from the number of CBGs included in the second TB, it is determined that the first TB is different from the second TB.

27. The device according to claim 19 or 20, characterized in that, The first information includes DMRS sequence initialization indication information; Then, the confirmation unit is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if the DMRS sequence initialization indication information corresponding to the first DCI is the same as the DMRS sequence initialization indication information corresponding to the second DCI, it is determined that the first TB is the same as the second TB; or, if the DMRS sequence initialization indication information corresponding to the first DCI is different from the DMRS sequence initialization indication information corresponding to the second DCI, it is determined that the first TB is different from the second TB.

28. The device according to claim 19 or 20, characterized in that, The first information includes priority indication information; Then, the confirmation unit is collectively configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if the priority indication information corresponding to the first DCI is the same as the priority indication information corresponding to the second DCI, it is determined that the first TB is the same as the second TB; or, if the priority indication information corresponding to the first DCI is different from the priority indication information corresponding to the second DCI, it is determined that the first TB is different from the second TB.

29. The device according to claim 19 or 20, characterized in that, The first information includes time window information; Then, the confirmation unit is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if the first time window corresponding to the first physical channel determined according to the time window information overlaps at least partially in the time domain with the second time window corresponding to the second physical channel, it is determined that the first TB is the same as the second TB; or, if the first time window corresponding to the first physical channel determined according to the time window information does not overlap in the time domain with the second time window corresponding to the second physical channel, it is determined that the first TB is different from the second TB.

30. The device according to claim 29, wherein The time window information includes the length of the time window, and the time window length is preset or configured by the network device.

31. The device according to claim 19 or 20, characterized in that, The first physical channel includes the PDSCH, and the first information includes CBGFI; The confirmation unit is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if the CBGFI indicates a first preset value, determine that the first TB is the same as the second TB; or, if the CBGFI indicates a second preset value, determine that the first TB is different from the second TB; where the first preset value and the second preset value are different.

32. The device according to claim 19 or 20, characterized in that, The first physical channel includes the PUSCH, and the first information includes precoding and layer indication information; The confirmation unit is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if it is determined according to the precoding and layer indication information that the number of layers corresponding to the first TB is the same as the number of layers corresponding to the second TB, determine that the first TB is the same as the second TB; Or, if it is determined according to the precoding and layer indication information that the number of layers corresponding to the first TB is different from the number of layers corresponding to the second TB, determine that the first TB is different from the second TB.

33. The device according to claim 19 or 20, characterized in that, The first information includes antenna port information and CBGTI; The confirmation unit is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if the antenna port information corresponding to the first DCI is different from the antenna port information corresponding to the second DCI, or if it is determined according to the CBGTI that the number of CBGs included in the first TB is different from the number of CBGs included in the second TB, determine that the first TB is different from the second TB.

34. The device according to claim 19 or 20, characterized in that The first physical channel includes the PUSCH, and the first information includes precoding and layer indication information, antenna port information, and CBGTI; The confirmation unit is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, if it is determined according to the precoding and layer indication information that the number of layers corresponding to the first TB is different from the number of layers corresponding to the second TB; or, the antenna port information corresponding to the first DCI is different from the antenna port information corresponding to the second DCI; or, if it is determined according to the CBGTI that the number of CBGs included in the first TB is different from the number of CBGs included in the second TB, determine that the first TB is different from the second TB.

35. The device according to claim 19 or 20, characterized in that, The first physical channel includes the PDSCH, the first information includes RV information and / or DAI information, and the DAI information includes DAI count information; The confirmation unit is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, and when the first DAI count information is included in the first DCI, determine that the first TB is the same as the second TB if the first DAI count information is the same as the third DAI count information in the third DCI; or determine that the first TB is different from the second TB if the first DAI count information is different from the third DAI count information, where the third DCI is the DCI received by the receiving unit for scheduling the transmission of the third physical channel carrying the third TB in the previous time before receiving the first DCI, and the second HARQ process and the first HARQ process are different or the same; or, when the first DAI count information is not included in the first DCI, determine that the first TB is the same as the second TB if the RV information in the first DCI indicates a value other than 0; or determine that the first TB is different from the second TB if the RV information in the first DCI indicates 0.

36. The apparatus according to claim 19 or 20, wherein: The first physical channel includes a PDSCH; the confirmation unit is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, determine whether the first TB is the same as the second TB according to the RV information and / or DAI count information in the first DCI, where if the first DAI count information is included in the first DCI, determine whether the first TB is the same as the second TB according to the first DAI count information; or if the first DAI count information is not included in the first DCI, determine whether the first TB is the same as the second TB according to the RV information in the first DCI; or, The first physical channel includes a PUSCH; the confirmation unit is specifically configured to, when the first new data indication NDI information in the first DCI is the same as the second NDI information, or when the first NDI information is not included in the first DCI, determine whether the first TB is the same as the second TB according to the RV information in the first DCI.

37. A channel transmission device, characterized in that, The apparatus includes: a processor and a memory; the processor calls a program in the memory and executes the channel transmission method according to any one of the specific claims 1 to 18 above.

38. A chip, characterized in that, Including: A processor, configured to call and run a computer program from a memory, and a device installed with the chip executes the channel transmission method according to any one of claims 1 to 18.

39. A computer-readable storage medium, characterized in that, A program for an uplink transmission method is stored on the computer-readable storage medium, and when the program for the uplink transmission method is executed by a processor, the channel transmission method according to any one of claims 1 to 18 above is implemented.

40. A computer program product, characterized in that, The computer program product is stored in a non-transitory computer-readable storage medium, and when the computer program is executed, it implements the channel transmission method according to any one of claims 1 to 18.

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