Communication method and communication apparatus

Abstract

The present application provides a communication method. A terminal device can notify an access network device whether to perform transmission using a resource without dynamic grant / scheduling, so that the access network device determines whether it is necessary to reconfigure the resource without dynamic grant / scheduling, thereby preventing the transmission performance from being affected.

Description

A communication method and a communication apparatus

[0001] The present application claims priority to the Chinese patent application No. 202410445635.6 filed on April 12, 2024, and titled "A communication method and a communication apparatus", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of communication, and more particularly, to a communication method and a communication apparatus. BACKGROUND

[0003] In a conventional cellular mobile communication system, such as a long term evolution (LTE) system or a new radio (NR) system, when a terminal has an uplink data transmission requirement, the terminal usually needs to send a scheduling request (SR) or report a non-empty buffer status (BS) to an access network device. The access network device sends downlink control information (DCI) carrying an uplink grant (UL Grant) to the terminal based on the SR or the BS, which is used to dynamically authorize the terminal to use specified parameters on specified time-frequency resources to achieve terminal uplink transmission.

[0004] In the dynamic authorization process, signaling interaction not only introduces latency and signaling overhead, but also increases the power consumption of the terminal. Therefore, the NR introduces a grant-free or transmission without dynamic grant / scheduling transmission technology. When a terminal has an uplink data transmission requirement, the terminal directly uses semi-statically configured time-frequency resources and transmission parameters to perform data transmission.

[0005] In the grant-free transmission scenario, the access network device usually performs blind detection on the grant-free transmission resources. If a missed detection occurs, the base station may not be able to reconfigure the grant-free transmission resources in time, which affects the transmission performance. SUMMARY

[0006] The present application provides a communication method. A terminal device can notify an access network device whether to use grant-free or grant-free scheduling resources for transmission, so as to determine whether the access network device needs to reconfigure the grant-free or grant-free scheduling resources, thereby avoiding affecting the transmission performance.

[0007] In a first aspect, a communication method is provided. The method can be performed by a terminal device, or can be performed by a chip or circuit or processor or chip system configured in the terminal device, or can be performed by a logic module or software capable of implementing all or part of the functions of the terminal device. The present application does not limit this.

[0008] The method comprises determining first information, the first information being used to indicate whether the terminal device uses a first resource for transmission, the first resource being a resource free of dynamic authorization or dynamic scheduling; and sending the first information through a second resource, a time domain position of the second resource being after a time domain position of the first resource, or the time domain position of the second resource and the time domain position of the first resource overlapping.

[0009] In the above technical solution, the terminal device can report to the access network device whether the first resource is used for data transmission, which is beneficial to the access network device to determine whether a missed detection occurs. For example, the access network device does not detect a pilot signal when blind detection is performed on the first resource, but the terminal device indicates that the terminal device uses the first resource for transmission through the first information. The access network device can determine that a missed detection occurs, so that the resource free of dynamic authorization or dynamic scheduling can be reconfigured to avoid affecting the transmission performance.

[0010] In the above solution, the first resource indicated by the terminal device can be understood as the use status of the resource free of dynamic authorization or dynamic scheduling before the current physical uplink shared channel (PUSCH) of the terminal device.

[0011] In combination with the first aspect, in some implementations of the first aspect, the first resource comprises at least one resource, and the time domain position of the second resource overlaps with the time domain position of the last one of the at least one resource.

[0012] In combination with the first aspect, in some implementations of the first aspect, the second information is received, the second information being used to indicate whether the access network device detects the transmission of the terminal device on the first resource.

[0013] In the technical solution, the terminal device can receive the second information, the second information being used to indicate the missed detection result determined by the access network device according to the first information, so as to be beneficial to the terminal device to determine the channel quality state of the first resource.

[0014] In some implementations of the first aspect, the second information is used to determine whether to continue using the first resource for transmission, or to trigger the access network device to configure a third resource, which is a dynamic grant-free or dynamic scheduling-free resource.

[0015] In this technical solution, the terminal device can determine whether to continue using the first resource according to the second information, for example, if the channel quality state of the first resource is normal, the first resource can be continued to be used for transmission, and if the channel quality state of the first resource is poor, the terminal device can actively trigger the reconfiguration of the dynamic grant-free or dynamic scheduling-free resource.

[0016] In some implementations of the first aspect, the first information includes at least one bit, which is used to indicate whether to use the first resource for transmission.

[0017] In some implementations of the first aspect, each bit in the at least one bit is associated with one of the first resources, or each bit in the at least one bit is associated with a resource period of one of the first resources, or each bit in the at least one bit is associated with a hybrid automatic repeat request (HARQ) process associated with one of the first resources.

[0018] In this technical solution, each bit can be used to indicate whether the associated first resource is used for transmission, or whether the resources in a resource period are used for transmission, or whether the first resource related to a HARQ process is used for transmission.

[0019] In a possible implementation, each two bits can also be used to indicate whether the associated first resource or the associated resource period or the HARQ process related resource is used for transmission. The embodiments of the present application do not limit this.

[0020] In some implementations of the first aspect, the sending of the first information is triggered according to at least one of the following: a reporting period or a timer; or a triggering event; or a signal quality or strength measurement result of a downlink signal.

[0021] In this technical solution, an exemplary scheme for the terminal device to trigger the sending of the first information is given, for example, the sending of the first information can be triggered by a configured period or timer, or the sending of the first information can be triggered by an event, and the sending of the first information can also be triggered by actively measuring the signal quality or strength measurement result, and when the measurement result reaches a preset threshold, the sending of the first information can be triggered.

[0022] With reference to the first aspect, in some implementations of the first aspect, the first information is carried in any one of a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), or a resource used for transmitting an uplink signal.

[0023] With reference to the first aspect, in some implementations of the first aspect, the first information is a medium access control-control element (MAC CE) or uplink control information (UCI).

[0024] With reference to the first aspect, in some implementations of the first aspect, the second resource is a resource that is free of dynamic grant or dynamic scheduling.

[0025] The second aspect provides a communication method, which can be executed by an access network device, or by a chip or circuit or processor or chip system configured in the access network device, or by a logic module or software capable of implementing all or part of the functions of the access network device, which is not limited in the present application.

[0026] The method comprises: transmitting a configuration of a first resource; and receiving first information through a second resource, the first information being used to indicate whether a terminal device uses the first resource for transmission, the first resource being a resource that is free of dynamic grant or dynamic scheduling, and a time domain position of the second resource being after a time domain position of the first resource or overlapping the time domain position of the first resource.

[0027] In the above technical solution, the access network device can receive a report of the terminal device that the first resource is used for data transmission, which is beneficial to the access network device to determine whether a missed detection occurs. For example, the access network device does not detect a pilot signal when performing blind detection on the first resource, but the terminal device indicates that the terminal device uses the first resource for transmission through the first information. The access network device can determine that a missed detection occurs, so that the access network device can reconfigure the resource that is free of dynamic grant or dynamic scheduling, thereby avoiding affecting the transmission performance.

[0028] With reference to the second aspect, in some implementations of the second aspect, the first resource comprises at least one resource, and a time domain position of the second resource overlaps a time domain position of a resource that is last in the at least one resource, in terms of time domain position.

[0029] With reference to the second aspect, in some implementations of the second aspect, the access network device can determine whether the transmission of the terminal device on the first resource is detected according to the first information.

[0030] In this technical solution, the access network device can perform blind detection on the first resource, so as to determine whether the first resource indicated by the terminal device has data transmission, and thus determine whether the access network device has missed detection.

[0031] With reference to the second aspect, in some implementations of the second aspect, the second information is transmitted, and the second information is used to indicate whether the transmission of the terminal device on the first resource is detected by the access network device.

[0032] In this technical solution, the second information is used to indicate the missed detection result determined by the access network device according to the first information, so as to facilitate the terminal device to determine the channel quality state of the first resource.

[0033] With reference to the second aspect, in some implementations of the second aspect, when the first information indicates that the terminal device uses the first resource for transmission, and it is determined that the transmission of the terminal device on the first resource is not detected according to the first information, a third resource is transmitted, and the third resource is a resource free of dynamic grant or dynamic scheduling.

[0034] In this technical solution, when the access network device determines that missed detection occurs according to the first information and the blind detection result, the access network device can perform reconfiguration on the resource free of dynamic grant or dynamic scheduling.

[0035] With reference to the second aspect, in some implementations of the second aspect, the first information includes at least one bit, and the at least one bit is used to indicate whether the first resource is used for transmission.

[0036] With reference to the second aspect, in some implementations of the second aspect, each bit in the at least one bit is associated with one first resource, or each bit in the at least one bit is associated with one resource period of the first resource, or each bit in the at least one bit is associated with a HARQ process related to the first resource.

[0037] In this technical solution, each bit can be used to indicate whether the associated first resource is used for transmission, or used to indicate whether the resources of one resource period are used for transmission, or used to indicate whether the first resources related to one HARQ process are used for transmission. Similarly, each two bits can also be used to indicate whether the associated first resource or the associated resource period or the resources related to the HARQ process are used for transmission. The embodiments of the present application do not limit this.

[0038] With reference to the second aspect, in some implementations of the second aspect, the first information is carried in any one of a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), and a resource used for transmitting an uplink signal.

[0039] With reference to the second aspect, in some implementations of the second aspect, the first information is a medium access control control element (MAC CE) or uplink control information (UCI).

[0040] With reference to the second aspect, in some implementations of the second aspect, the second resource is a resource that is free of dynamic grant or dynamic scheduling.

[0041] A third aspect provides a communication apparatus, which can be a terminal device, or a chip or circuit or processor or chip system configured in the terminal device, or a logic module or software capable of realizing all or part of the functions of the terminal device, and the present application does not limit this.

[0042] The apparatus includes a processing unit configured to determine first information, the first information being used to indicate whether the terminal device uses a first resource for transmission, the first resource being a resource that is free of dynamic grant or dynamic scheduling; and a transceiver configured to transmit the first information through a second resource, a time domain position of the second resource being after a time domain position of the first resource, or the time domain position of the second resource and the time domain position of the first resource overlapping.

[0043] With reference to the third aspect, in some implementations of the third aspect, the first resource includes at least one resource, and the time domain position of the second resource and the time domain position of the first resource overlap based on the position, including that the time domain position of the second resource and a time domain position of a resource that is the latest among the at least one resource overlap.

[0044] With reference to the third aspect, in some implementations of the third aspect, the transceiver is further configured to receive second information, the second information being used to indicate whether the access network device detects transmission of the terminal device on the first resource.

[0045] With reference to the third aspect, in some implementations of the third aspect, the processing unit is further configured to determine whether to continue using the first resource for transmission according to the second information, or the processing unit is further configured to determine whether to trigger the access network device to configure a third resource according to the second information, the third resource being a resource that is free of dynamic grant or dynamic scheduling.

[0046] With reference to the third aspect, in some implementations of the third aspect, the first information includes at least one bit, the at least one bit being used to indicate whether to use the first resource for transmission.

[0047] With reference to the third aspect, in some implementations of the third aspect, the at least one bit is associated with one of the first resources, or the at least one bit is associated with a resource period of one of the first resources, or the at least one bit is associated with a hybrid automatic repeat request (HARQ) process related to one of the first resources.

[0048] With reference to the third aspect, in some implementations of the third aspect, the processing unit is further configured to determine the triggering of the sending of the first information according to at least one of: a reporting period or a timer; or a triggering event; or a signal quality or strength measurement result of a downlink signal.

[0049] With reference to the third aspect, in some implementations of the third aspect, the first information is carried in any one of a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), or a resource used for sending an uplink signal.

[0050] With reference to the third aspect, in some implementations of the third aspect, the first information is a medium access control control element (MAC CE) or uplink control information (UCI).

[0051] With reference to the third aspect, in some implementations of the third aspect, the second resource is a resource that is free of dynamic grant or dynamic scheduling.

[0052] A fourth aspect provides a communication apparatus, which can be an access network device, or can be a chip or circuit or processor or chip system configured in the access network device, or can be a logic module or software that can realize all or part of the functions of the access network device, which is not limited in the present application.

[0053] The apparatus comprises a transceiver configured to send a configuration of the first resource; and the transceiver is further configured to receive, through a second resource, first information used to indicate whether a terminal device uses the first resource for transmission, the first resource being a resource that is free of dynamic grant or dynamic scheduling, and a time domain position of the second resource being after a time domain position of the first resource, or the time domain position of the second resource and the time domain position of the first resource overlapping.

[0054] With reference to the fourth aspect, in some implementations of the fourth aspect, the first resource comprises at least one resource, and the time domain position of the second resource and the time domain position of the first resource overlapping based on the position comprises that the time domain position of the second resource and a time domain position of a resource that is the latest among the at least one resource overlapping.

[0055] In some implementations of the fourth aspect, the processing unit is configured to determine, according to the first information, whether the transmission of the terminal device on the first resource is detected.

[0056] In some implementations of the fourth aspect, the transceiving unit is further configured to transmit second information, the second information being used to indicate whether the transmission of the terminal device on the first resource is detected by the access network device.

[0057] In some implementations of the fourth aspect, when the first information indicates that the terminal device transmits on the first resource, and it is determined according to the first information that the transmission of the terminal device on the first resource is not detected, the transceiving unit is further configured to transmit a third resource, the third resource being a resource free of dynamic grant or dynamic scheduling.

[0058] In some implementations of the fourth aspect, the first information comprises at least one bit, the at least one bit being used to indicate whether the terminal device transmits on the first resource.

[0059] In some implementations of the fourth aspect, each bit of the at least one bit is associated with one of the first resources, or each bit of the at least one bit is associated with a resource period of one of the first resources, or each bit of the at least one bit is associated with a HARQ process associated with one of the first resources.

[0060] In some implementations of the fourth aspect, the first information is carried in any one of a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), and a resource used for transmitting an uplink signal.

[0061] In some implementations of the fourth aspect, the first information is a medium access control control element (MAC CE) or uplink control information (UCI).

[0062] In some implementations of the fourth aspect, the second resource is a resource free of dynamic grant or dynamic scheduling.

[0063] In a fifth aspect, a communication apparatus is provided, which is configured to perform the method of any of the above first aspect to the second aspect. Specifically, the communication apparatus can include units and / or modules configured to perform the method of any of the above first aspect to the second aspect, such as a processing unit and / or a communication unit.

[0064] In an implementation, the communication apparatus comprises a communication unit and a processing unit, the communication unit can be a transceiver, or an input / output interface; the processing unit can be at least one processor. Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.

[0065] In another implementation, the communication apparatus is a chip, a chip system or a circuit in a network device. When the communication apparatus is a chip, a chip system or a circuit in a network device, the communication unit can be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin or related circuit on the chip, the chip system or the circuit; the processing unit can be at least one processor, a processing circuit or a logic circuit.

[0066] In a sixth aspect, a communication apparatus is provided, comprising a processor, and optionally, a memory, the processor being configured to control a transceiver to transmit and receive signals, the memory being configured to store a computer program, the processor being configured to invoke and run the computer program from the memory, so that the transmitting device performs the method in any possible implementation of the first aspect to the second aspect.

[0067] Optionally, the processor is one or more, and the memory is one or more.

[0068] Optionally, the memory can be integrated with the processor, or the memory can be arranged separately from the processor.

[0069] Optionally, the network device further comprises a transceiver, which can be a transmitter (transmitter) and a receiver (receiver).

[0070] In a seventh aspect, a computer readable storage medium is provided, the computer readable storage medium stores a computer program or code, when the computer program or code is run on a computer, the computer program or code causes the computer to perform the method in any possible implementation of the first aspect to the second aspect.

[0071] In an eighth aspect, a chip is provided, comprising at least one processor, the at least one processor being coupled with a memory, the memory being configured to store a computer program, the processor being configured to invoke and run the computer program from the memory, so that the transmitting device installed with the chip system performs the method in any possible implementation of the first aspect to the second aspect.

[0072] Optionally, the chip can comprise an input circuit or an interface for transmitting information or data, and an output circuit or an interface for receiving information or data.

[0073] In a ninth aspect, a computer program product is provided, which includes computer program codes, when the computer program codes are run by a sending device, the method in any possible implementation manner of the first aspect to the second aspect is executed.

[0074] The beneficial effects of the third aspect to the ninth aspect can refer to the beneficial effects of the first aspect to the second aspect, and will not be repeated. BRIEF DESCRIPTION OF DRAWINGS

[0075] FIG. 1 is an exemplary architecture diagram of a communication system 100 suitable for embodiments of the present application.

[0076] FIG. 2 is an application architecture diagram of a communication system suitable for embodiments of the present application.

[0077] FIG. 3 is a schematic flow chart of a communication method 300 suitable for embodiments of the present application.

[0078] FIG. 4 is a schematic diagram of a time domain position relationship between a first resource and a second resource suitable for embodiments of the present application.

[0079] FIG. 5 is a schematic diagram of another time domain position relationship between a first resource and a second resource suitable for embodiments of the present application.

[0080] FIG. 6 is a schematic diagram of using a bit to indicate whether a first resource is used for transmission suitable for embodiments of the present application.

[0081] FIG. 7 is a structural schematic diagram of a communication apparatus provided by embodiments of the present application.

[0082] FIG. 8 is a schematic diagram of a communication architecture provided by embodiments of the present application. DETAILED DESCRIPTION

[0083] The technical solutions in the present application will be described below with reference to the accompanying drawings.

[0084] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example, a 5th generation (5G) system or new radio (NR), an evolved packet core (EPC), an evolved packet system (EPS), an evolved universal mobile telecommunications system (UMTS) terrestrial radio access network (E-UTRAN), a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD), and the like. The technical solutions provided in the present application can also be applied to future communication systems, such as a 6th generation mobile communication system.

[0085] The technical solutions of the embodiments of the present application can also be applied to device to device (D2D) communication, vehicle-to-everything (V2X) communication, machine to machine (M2M) communication, machine type communication (MTC), and an internet of things (IoT) communication system or other communication systems.

[0086] The terminal device in the embodiments of the present application can be referred to as a user equipment (UE), an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user apparatus.

[0087] The terminal device can be a device providing voice / data to a user, for example, a handheld device with wireless connection function, a vehicle-mounted device, etc. At present, some terminals can be, for example, a mobile phone, a tablet computer, a notebook computer, a palm computer, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolved public land mobile network (PLMN), etc. The embodiments of the present application are not limited thereto.

[0088] By way of example and not limitation, in the embodiments of the present application, the terminal device can also be a wearable device. The wearable device can also be referred to as a smart wearable device. The wearable device can be a device that applies wearable technology to intelligently design and develop daily wear, such as glasses, gloves, watches, clothing, and shoes. Alternatively, the wearable device can be a portable device that can be directly worn on the body or integrated into the clothes or accessories of a user. The wearable device is not only a hardware device, but also a device that realizes powerful functions through software support and data interaction and cloud interaction. The general wearable smart device includes a device with full functions and large size, which can realize complete or partial functions without relying on a smart phone, such as a smart watch or smart glasses, and a device that focuses on a certain application function and needs to cooperate with other devices such as a smart phone, such as various smart wristbands and smart jewelry for monitoring vital signs.

[0089] In addition, in the embodiments of the present application, the terminal device can also be a terminal device in an IoT system. IoT is an important part of future information technology development, and its main technical feature is to connect objects through communication technology and network, so as to realize the intelligent network of man-machine interconnection and object-object interconnection.

[0090] In addition, the terminal device can also include intelligent printers, train detectors, gas station sensors, and the like, and the main functions include collecting data (for some terminal devices), receiving control information and downlink data of a network device, and transmitting electromagnetic waves to transmit uplink data to the network device.

[0091] The network device in the embodiments of the present application can be a device for communicating with the terminal device. The network device can be a next-generation base station (gNodeB, gNB) in a 5G communication system, a base station in a future mobile communication system, or an access node in a WiFi system, an evolved node B (eNB) in an LTE system, a radio network controller (RNC), a node B (NB), a base station controller (BSC), a home base station (for example, a home evolved NodeB or a home Node B, HNB), a base band unit (BBU), a transmission reception point (TRP), a transmitting point (TP), a base transceiver station (BTS), and the like.

[0092] In a network structure, the network device can include a centralized unit (CU) node, or a distributed unit (DU) node, or a radio access network (RAN) device including the CU node and the DU node, or a RAN device of a control plane CU node and a user plane CU node, and a DU node. The network device can serve a cell through which a terminal device communicates with a base station using transmission resources (for example, frequency domain resources, or spectrum resources) of the cell. The cell can be a cell corresponding to a base station (for example, a base station). The cell can belong to a macro base station or a base station corresponding to a small cell. The small cell can include a metro cell, a micro cell, a pico cell, a femto cell, and the like. The small cell has a small coverage range and low transmission power, and is suitable for providing a high-rate data transmission service. The network device can be a macro base station, a micro base station, or an indoor station. The network device can also be a relay node or a donor node, a device providing wireless communication services for a user equipment in a V2X communication system, a wireless controller in a cloud radio access network (CRAN) scenario, a relay station, a vehicle-mounted device, a wearable device, and a network device in a future evolution network. Embodiments of the present application do not limit the specific technology and device specific form adopted by the network device.

[0093] In the embodiments of the present application, the terminal device or the network device can include a hardware layer, an operating system layer running above the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also referred to as a main memory). The operating system can be any one or more computer operating systems that implement business processing through a process, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer includes applications such as a browser, an address book, word processing software, and instant messaging software. Moreover, the embodiments of the present application do not particularly limit the specific structure of the execution subject of the method provided by the embodiments of the present application, as long as the execution subject can communicate according to the method provided by the embodiments of the present application by running a program in which the code of the method provided by the embodiments of the present application is recorded. For example, the execution subject of the method provided by the embodiments of the present application can be a terminal device or a network device, or a functional module of the terminal device or the network device that can invoke and execute a program.

[0094] Referring to FIG. 1, as an example, FIG. 1 is an exemplary architecture diagram of a communication system 100 applicable to the embodiments of the present application. As shown in FIG. 1, the communication system 100 can include at least one network device, such as the network device 101 shown in FIG. 1. The communication system 100 can also include at least one terminal device, such as the terminal devices 102 to 107 shown in FIG. 1. Among them, the terminal devices 102 to 107 can be mobile or fixed. The network device 101 can provide communication coverage for a specific geographic area, and the terminal devices 102 to 107 can be terminal devices located in the coverage area. The network device 101 and one or more of the terminal devices 102 to 107 can communicate through a wireless link.

[0095] Optionally, the terminal devices can communicate directly. For example, direct communication between terminal devices can be achieved by using device to device (D2D) technology and the like. As shown in FIG. 1, the terminal device 105 and the terminal device 106, and the terminal device 105 and the terminal device 107 can communicate directly by using D2D technology. The terminal device 106 and the terminal device 107 can communicate with the terminal device 105 separately or simultaneously.

[0096] The terminal devices 105 to 107 can also communicate with the network device 101 respectively. For example, the terminal devices 105 and 106 can directly communicate with the network device 101, and the terminal device 107 can communicate with the network device 101 via the terminal device 105.

[0097] Each of the communication devices in the communication system 100 shown in FIG. 1 can be configured with multiple antennas. For each communication device, the configured multiple antennas can include at least one transmitting antenna for transmitting signals and at least one receiving antenna for receiving signals. Therefore, the communication devices in the communication system 100 can communicate with each other through multiple input multiple output (MIMO) technology.

[0098] It should be understood that FIG. 1 is only a simplified schematic diagram for ease of understanding, and other network devices or other terminal devices can also be included in the communication system 100, which are not shown in FIG. 1.

[0099] It should also be understood that the communication system 100 shown in FIG. 1 is only an example of an application scenario of the embodiments of the present application, and the present application can also be applied to communication between any two devices, for example, communication between terminal devices or communication between network devices.

[0100] Referring to FIG. 2, as an example, FIG. 2 shows an application architecture schematic diagram of a communication system. For example, the architecture can include a RAN, a terminal, a core network (CN), an external network, and the like. The external network can be a data network (DN), and the RAN refers to a wireless network device provided in the present application, or referred to as a RAN device or an access network device, and the like.

[0101] The terminal device and the access network device can communicate with each other by using a certain air interface technology (such as NR or LTE technology, etc.). The terminal device and the terminal device can also communicate with each other by using a certain air interface technology (such as NR or LTE technology, etc.).

[0102] In the embodiments of the present application, the device for realizing the function of the terminal device can be a terminal device, or a device capable of supporting the terminal device to realize the function, such as a chip system or a chip, which can be installed in the terminal device. In the embodiments of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices.

[0103] By way of example and not limitation, embodiments of the present application can be used in high frequency scenarios, such as millimeter wave, terahertz wave scenarios, and can also be used in low frequency sub-future communication scenarios, such as 700 / 900MHz, 2.1 / 2.6 / 3.5GHz frequency bands, etc.

[0104] By way of example and not limitation, embodiments of the present application can be used in licensed frequency bands, and can also be used in unlicensed frequency bands.

[0105] In order to facilitate understanding of embodiments of the present application, the following will first briefly describe the terms involved in the embodiments of the present application.

[0106] 1. Dynamic grant transmission

[0107] In a communication system, when a terminal has uplink data transmission needs, the terminal can send an SR to an access network device through a PUCCH, or report a non-empty BS to the access network device through a PUSCH. The access network device sends a DCI carrying an uplink grant (UL Grant) to the terminal based on the SR or the BS, which is used to dynamically authorize the terminal to use specified parameters, such as a specified modulation and coding scheme (MCS), on a specified time-frequency resource. The terminal transmits uplink data based on the time-frequency resource of the dynamic grant, and this uplink data transmission process is called dynamic grant (DG) or dynamic scheduling data transmission. Since dynamic scheduling can efficiently utilize real-time channel information between the terminal and the access network device, and specify appropriate time-frequency resource positions, sizes, and transmission parameters for each transmission of the terminal, dynamic scheduling uplink transmission usually has higher reliability.

[0108] In this dynamic grant process, the terminal needs to send an SR or a buffer status report (BSR) to the access network device before transmitting data, and then the access network device authorizes through a DCI. This process introduces latency and signaling overhead. At the same time, since the reception of a physical downlink control channel (PDCCH) usually requires the terminal to perform blind detection on different control channel element (CCE) aggregation levels, different DCI formats, different DCI lengths, and different radio network temporary identifiers (RNTIs) on different time-frequency resources, a large amount of power consumption is required.

[0109] It can be seen that, in the dynamic grant process, signaling interaction not only introduces delay and signaling overhead, but also increases the power consumption of the terminal. In order to meet the requirements of current mobile communication on delay and resource overhead, a grant-free or transmission without dynamic grant / scheduling transmission technology is proposed. The grant-free transmission technology is described in detail below.

[0110] 2. Grant-free transmission

[0111] The basic principle of grant-free transmission is that the access network device configures uplink grant for the terminal in a semi-static manner through high-layer signaling (such as radio resource control (RRC) signaling, system message system information, etc.) and / or physical layer signaling, for example, configuring time-frequency resources used for uplink data transmission and transmission parameters, etc. When the terminal has uplink data transmission demand, it does not need to send SR or BSR to the access network device and wait for the process of dynamic uplink grant, but directly uses the semi-statically configured time-frequency resources and transmission parameters to send data to the base station, realizes data on-the-fly, and thus achieves the purpose of reducing transmission delay, signaling overhead and terminal power consumption.

[0112] In the above process, the access network device configures uplink grant for the terminal in a semi-static manner, which can also be referred to as grant-free or high-layer configured grant, etc. The specific naming does not limit the protection scope of the present application, and the following is uniformly described as grant-free.

[0113] In the above process, the time-frequency resources and transmission parameters of the grant-free can be referred to as grant-free resources, and the grant-free resources can also be referred to as grant-free scheduling resources. The specific naming does not limit the protection scope of the present application, and the following is uniformly described as grant-free transmission resources.

[0114] As an example, grant-free transmission can be divided into the following five types of examples according to different resource configuration methods.

[0115] Type one:

[0116] Also known as Type 1 configured grant. In this Type 1 configured grant, the access network device issues configured grant configuration information through RRC signaling, which is used to configure the period of time domain resources, open loop power control related parameters, waveforms, redundancy version sequences, repetition numbers, frequency hopping patterns, resource allocation types, HARQ process numbers, demodulation reference signal (DMRS) related parameters, modulation and coding scheme tables, resource block group (RBG) group sizes, and all transmission resources and transmission parameters including time domain resources, frequency domain resources, MCS, etc. After the terminal receives the configuration information, it can use the configured transmission resources and parameters for configured grant physical uplink shared channel (CG PUSCH) transmission.

[0117] Type two:

[0118] Also known as Type 2 configured grant. In this Type 2 configured grant, a two-step resource configuration method is used: first, the access network device issues configured grant configuration information through RRC signaling, which is used to configure transmission resources and transmission parameters including the period of time domain resources, open loop power control related parameters, waveforms, redundancy version sequences, repetition numbers, frequency hopping patterns, resource allocation types, HARQ process numbers, demodulation reference signal related parameters, MCS tables, resource block (Resource Block Group, RBG) group sizes, etc.; then use the DCI (such as DCI scrambled by CS-RNTI, new data indicator (NDI) set to 1) dedicated for activating Type 2 configured grant to activate Type 2 configured grant-based PUSCH transmission, and at the same time configure other transmission resources and transmission parameters including time domain resources, frequency domain resources, DMRS, MCS, etc. The terminal cannot immediately use the transmission resources and parameters configured by the RRC signaling to perform CG PUSCH transmission when receiving the RRC signaling, but must wait until receiving the corresponding dedicated activation DCI to activate and configure other resources and parameters before performing CG PUSCH transmission.

[0119] Type three:

[0120] Also known as a Type 3 configured grant (Type 3 configured grant). A Type 3 configured grant can be understood as a combination of the Type 1 and Type 2 grants. That is, the access network device sends the configured grant configuration information via RRC signaling. Upon receiving this configuration information, the terminal can immediately use the configured transmission resources and parameters for CG PUSCH transmission. The access network device can also reactivate or reconfigure the Type 3 configured grant via a dedicated activation DCI, including reconfiguring transmission resources and / or transmission parameters.

[0121] Type 4:

[0122] In this type of dynamic authorization-free transmission, the access network device first sends the dynamic authorization-free transmission configuration information through RRC signaling, including the configuration of dynamic authorization-free transmission resources and / or transmission parameters. After the terminal receives the configuration information, it can immediately use the configured transmission resources and parameters to perform CG PUSCH transmission. The access network device can reactivate or reconfigure this type of dynamic authorization-free transmission through the multi-function DCI, such as reconfiguring transmission resources and / or transmission parameters. The multi-function DCI here is different from the dedicated activation DCI in types one, two, and three. When the multi-function DCI has the function of reconfiguring dynamic authorization-free transmission, it also has functions such as authorizing the terminal to retransmit uplink data, while the dedicated activation DCI does not have functions such as authorizing the terminal to retransmit uplink data when it has the function of activating dynamic authorization-free transmission. This type of dynamic authorization-free transmission can achieve flexible, fast, and low-overhead reconfiguration of dynamic authorization-free transmission.

[0123] Type 5:

[0124] In this type of dynamic grant-free transmission, the access network device first sends the dynamic grant-free transmission configuration information through RRC signaling, including the configuration of dynamic grant-free transmission resources and / or transmission parameters. After the terminal receives the configuration information, it can immediately use the configured transmission resources and parameters for CG PUSCH transmission. The terminal can actively trigger the dynamic grant-free transmission reconfiguration, such as reconfiguring the dynamic grant-free transmission resources and / or transmission parameters, and send the reconfiguration information to the access network device. The dynamic grant-free transmission reconfiguration takes effect at the agreed time between the terminal and the access network device. This type of dynamic grant-free transmission can realize the dynamic grant-free transmission reconfiguration without DCI.

[0125] As an example, two-step random access (2-step random access) can also be regarded as a type of transmission without dynamic authorization. The difference is that in 2-step RA, in addition to sending PUSCH, the terminal also needs to send a random access preamble for the access network device to estimate the timing of the terminal. 2-step RA consists of MsgA and MsgB. The main process is as follows: the terminal sends MsgA to the access network device. MsgA consists of the physical random access channel (PRACH) and PUSCH, where PRACH is used to send the random access preamble and PUSCH is used to send the control plane (CP) and / or user plane data. After receiving MsgA, the access network device sends MsgB to the terminal. If the access network device correctly decodes the PUSCH in MsgA, MsgB is also called the success RAR, which contains the contention resolution message. If the access network device does not correctly decode the PUSCH, MsgB is also called the fallback RAR. After receiving the fallback RAR, the terminal will fall back to 4-step RA according to the uplink grant (UL grant) carried therein and send Msg3 to the access network device.

[0126] In the dynamic authorization-free transmission scenario, the terminal uses the dynamic authorization-free transmission resources to send uplink data. The access network equipment usually performs blind detection on the dynamic authorization-free transmission resources, such as blind detection of the terminal's pilot signal such as DMRS. If the pilot signal is detected, the base station believes that the terminal has used the dynamic authorization-free transmission resources to send data, otherwise it believes that the terminal has not used the dynamic authorization-free transmission resources to send data. When the terminal actually sends data but the base station does not detect it, a missed detection occurs. Missed detection is usually difficult to completely avoid, especially in a wireless channel environment, where the channel environment changes rapidly, and the dynamic authorization-free transmission resources are semi-statically configured and cannot quickly adapt to wireless channel changes. In addition, in order to improve resource utilization and support more terminals to transmit data with the base station at the same time, dynamic authorization-free transmission usually supports multiple terminals to share the same dynamic authorization-free transmission resources, such as time-frequency resources, for data transmission. In this case, interference between multiple terminals will also cause missed detection by the base station.

[0127] In summary, if missed detection occurs, it means that the terminal used the dynamic authorization-free transmission resource to send data, but the access network device did not detect it, resulting in the access network device possibly being unable to reconfigure the dynamic authorization-free transmission resource in time, affecting the dynamic authorization-free transmission performance.

[0128] In view of this, the present application provides a communication method, in which the terminal device can indicate to the access network device through indication information whether the dynamic authorization-free transmission resources are used, and then the access network device can determine whether a missed detection occurs, so that the dynamic authorization-free transmission resources can be reconfigured in time to avoid affecting the transmission performance.

[0129] It should be noted that in this application, "indication" can include direct indication and indirect indication. When describing that a certain indication information is used to indicate A, it can be understood that the indication information carries A, directly indicates A, or indirectly indicates A.

[0130] In this application, the information indicated by the indication information is referred to as the information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated, such as but not limited to, the information to be indicated can be directly indicated, such as the information to be indicated itself or the index of the information to be indicated. The information to be indicated can also be indirectly indicated by indicating other information, wherein there is an association between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while the other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can also be achieved with the help of the arrangement order of each information agreed in advance (for example, stipulated by the protocol), thereby reducing the indication overhead to a certain extent. In addition, the information to be indicated can be sent together as a whole, or it can be divided into multiple sub-information and sent separately, and the sending period and / or sending time of these sub-information can be the same or different.

[0131] In addition, in this application, the expression " / " is used to indicate that the objects associated with each other are in an "or" relationship; for example, A / B can mean: A or B. The expression "and / or" is used to indicate that the objects associated with each other can be in an and relationship or an or relationship; for example, A and / or B can mean the following situations: A exists alone, B exists alone, and A and B exist at the same time, where A and B can be single or multiple. "At least one of the following" or similar expressions is used to indicate any combination of the listed items; for example, at least one of A, B and / or C can mean the following situations: A exists alone, B exists alone, C exists alone, A and B exist at the same time, B and C exist at the same time, A and C exist at the same time, and A, B and C exist at the same time, where A, B, and C can be single or multiple.

[0132] The communication method provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments provided by the present application can be applied to the communication system shown in FIG. 1 above without limitation.

[0133] The solution of this application is described in detail below.

[0134] Referring to Figure 3, as an example, Figure 3 is a schematic flow chart of a communication method 300 provided in an embodiment of the present application. For the convenience of description below, method 300 is exemplarily illustrated by taking the interaction between the execution subject access network device and the terminal device as an example. It can be understood that the execution subject of method 300 can also be a component (such as a chip or circuit) of the access network device or the terminal device, and this is not limited. The steps described below as being performed by a single execution subject can also be divided into steps performed by multiple execution subjects, and these execution subjects can be logically and / or physically separated.

[0135] The method 300 shown in FIG. 3 may include the following steps.

[0136] 310. The access network device sends the configuration of the first resource to the terminal device.

[0137] Correspondingly, the terminal device receives the configuration of the first resource sent from the access network device.

[0138] The first resource is a resource that does not require dynamic authorization or dynamic scheduling, and the terminal device indicates the transmission status to the access network device. Exemplarily, the transmission status may refer to whether transmission has been performed or not performed on the resource that does not require dynamic authorization.

[0139] As an example, resources that are exempt from dynamic authorization or dynamic scheduling may include at least one of time domain resources, frequency domain resources, spatial domain resources (e.g., beams), pilot resources (e.g., pilot ports, pilot sequences, preambles, etc.), or code domain resources (e.g., non-orthogonal multiple access signatures, spread spectrum sequences, sparse sequences, etc.).

[0140] Exemplarily, time domain and / or frequency domain resources may also be referred to as transmission occasions (TOs).

[0141] The transmission resources without dynamic authorization can be configured by the access network device to the terminal device through high-layer signaling or physical layer signaling, or can be agreed upon by the access network device and the terminal device. The specific configuration method can be found in the previous article and will not be repeated here.

[0142] Resources exempt from dynamic authorization or dynamic scheduling can be understood as resources authorized by the access network device. This authorization can be understood as authorization configured by a higher layer, and the terminal device can transmit data based on this authorization. When a terminal device needs to send uplink data to the access network device, it can use some or all of the resources exempt from dynamic authorization or dynamic scheduling to send data to the access network device. In other words, the terminal device sends data based on the authorization of the access network device.

[0143] 320. The terminal device determines the first information.

[0144] The first information is used to indicate to the access network device whether the terminal device uses the first resource for transmission.

[0145] Whether the terminal device uses the first resource for transmission can also be understood as whether the terminal device uses the first resource to send data to the access network device.

[0146] Exemplarily, the terminal device may use the first resource to send the PUSCH.

[0147] Exemplarily, the terminal device may send PUSCH using the HARQ process associated with the first resource.

[0148] 330. The terminal device sends the first information through the second resource.

[0149] In a possible implementation, the time domain position of the second resource is subsequent to the time domain position of the first resource.

[0150] In another possible implementation, the time domain position of the second resource overlaps with the time domain position of the first resource.

[0151] Exemplarily, the time domain position of the second resource overlaps with the time domain position of the first resource, which can be understood as the time domain position of the second resource and the time domain position of the first resource having the same time domain symbol, for example, orthogonal frequency division multiplexing (OFDM) symbol.

[0152] The second resource may belong to the first resource or may not belong to the first resource, and this is not limited in the embodiment of the present application.

[0153] An optional understanding is that the first information is used to indicate to the access network device the usage status of the terminal device's current PUSCH resources that are free of dynamic authorization or dynamic scheduling.

[0154] FIG4 shows a schematic diagram of a time domain position relationship between a first resource and a second resource.

[0155] Exemplarily, as shown in (a) of FIG4 , the time domain position of the second resource is after the time domain position of the first resource, wherein the starting time domain position of the second resource is after the ending time domain position of the first resource.

[0156] Exemplarily, as shown in FIG4( b ) to FIG4 ( c ), the time domain position of the second resource overlaps with the time domain position of the first resource.

[0157] In (b) of FIG4 , the time domain position of the second resource partially overlaps with the time domain position of the first resource, and the starting time domain position of the second resource is located before the starting time domain position of the first resource.

[0158] In FIG4(c), the time domain position of the second resource completely overlaps with the time domain position of the first resource. In other words, the time domain position of the second resource is included in the time domain position of the first resource. Alternatively, the time domain position of the second resource is a portion of the time domain position of the first resource.

[0159] In (d) of FIG4 , the time domain position of the second resource partially overlaps with the time domain position of the first resource, and the starting time domain position of the second resource is located after the starting time domain position of the first resource.

[0160] It should be noted that, when the first resource includes multiple resources, in one possible implementation, when the first resource includes at least one resource, the time domain position of the second resource is located after the time domain position of the last resource in the at least one resource. The last resource refers to the resource with the latest time domain position in the at least one resource.

[0161] FIG5 shows another schematic diagram of the time domain position relationship between the first resource and the second resource.

[0162] Taking the dynamic authorization-free transmission resources TO1 to TO8 as an example, TO1 to TO8 can be used by the terminal device to send data to the access network device (ie, resources that do not require dynamic authorization or dynamic scheduling). The terminal device uses the second resource to send the first information.

[0163] In a possible implementation, when the first resource includes at least one resource, the time domain position of the second resource is located after the time domain position of the latest resource among the at least one resource.

[0164] Exemplarily, as shown in (a) of Figure 5, the second resource is located after TO4 in the time domain, and the first information carried on the second resource is used to indicate whether the terminal device is transmitting on TO1 to TO4. In other words, the first resource that can be indicated by the first information includes the resource whose time domain position is before the second resource, that is, TO1 to TO4. It should be understood that TO5 to TO8 whose time domain position is after the second resource are resources configured on the network side that are exempt from dynamic authorization, but their transmission status has not yet been indicated, so they do not belong to the first resource, that is, TO5 to TO8 do not belong to the first resource.

[0165] Exemplarily, the second resource may not be a resource that is exempt from dynamic authorization or dynamic scheduling, such as shown in (a) of FIG5 .

[0166] Exemplarily, the second resource may also be a resource that is exempt from dynamic authorization or dynamic scheduling. For example, the time domain location of the second resource is part of the time domain location of TO5. That is, the terminal device uses TO5 to send the first information, and the first information is used to indicate whether the terminal device is transmitting on TO1-TO4. It should be understood that although TO5 is a resource configured by the network side for transmission without dynamic authorization, in this case, TO5 can also be used as a second resource to send the first information. In this example, TO1-TO4 are first resources.

[0167] It can be seen that the second resource itself may be a resource that is exempt from dynamic authorization or dynamic scheduling, or a resource that is not exempt from dynamic authorization or dynamic scheduling. The terminal device and the access network device may agree in advance, and the access network device may also configure it to the terminal device. This is not limited to the comparison in the embodiments of the present application.

[0168] As an example, when the terminal device is not transmitting on a resource that is configured on the network side and is not subject to dynamic authorization transmission, the terminal device may send first information on the resource that is not subject to dynamic authorization transmission to indicate whether there is any transmission on one or more resources that are not subject to dynamic authorization transmission before the resource. For example, in the above example, when the terminal device is not transmitting on TO5, the terminal device may send first information on TO5 to indicate whether there is any transmission on one or more first resources (for example, TO1 to TO4) before TO5.

[0169] In a possible implementation, when the first resource includes at least one resource, a time domain position of the second resource overlaps with a time domain position of a last resource in the at least one resource.

[0170] Exemplarily, as shown in (b) of Figure 5 , assuming that the time domain position of the second resource overlaps with the time domain position of TO4, the first resource that can be indicated by the first information includes the resources with time domain positions before and including TO4, i.e., TO1 to TO4; the dynamic authorization-free transmission resources after the time domain position of TO4 do not belong to the first resource indicated by the first information, i.e., TO5 to TO8 do not belong to the first resource indicated by the first information. It should be noted that TO5 to TO8 are resources configured by the network device that are free of dynamic authorization or dynamic scheduling, and whether the terminal device transmits on TO5 to TO8 can be indicated by subsequent other first information. Figure 5 only takes the example of the terminal device indicating the transmission status of some resources configured by the network device that are free of dynamic authorization or dynamic scheduling as an example to illustrate how the terminal device indicates to the network device whether there is transmission on the resources that are free of dynamic authorization or dynamic scheduling.

[0171] Exemplarily, the time domain position of the second resource overlaps with the time domain position of TO4, which may include complete overlap, as shown in Figure 5(b); or partial overlap, as shown in Figure 5(c) and Figure 5(d). In Figure 5(c), the starting time domain position of the second resource is before the starting time domain position of TO4; in Figure 5(d), the starting time domain position of the second resource is after the starting time domain position of TO4.

[0172] Next, the first information will be described.

[0173] The first information may include at least one bit, where the at least one bit is used to indicate whether to use the first resource for transmission.

[0174] Among them, at least one bit is associated with at least one of the first resources, or at least one bit is associated with at least one resource period of the first resource, or at least one bit is associated with at least one hybrid automatic repeat request HARQ process associated with the first resource.

[0175] In a possible implementation, each bit of the at least one bit may be used to indicate a first resource.

[0176] Exemplarily, each bit may be used to indicate a TO.

[0177] Exemplarily, each bit may be used to indicate a first resource period, for example, a period includes two TOs.

[0178] Exemplarily, each bit may be used to indicate an index of a HARQ process associated with the first resource.

[0179] FIG6 shows a schematic diagram of using bits to indicate whether to use the first resource for transmission.

[0180] As shown in (a) of Figure 6 , the first resource is TO1 to TO8 as an example. The first information may include 8 bits.

[0181] In a possible implementation, each bit may indicate resource utilization of a TO.

[0182] In another possible implementation, every two bits may be used to indicate one first resource.

[0183] Exemplarily, every two bits can be used to indicate one TO.

[0184] Exemplarily, every two bits may be used to indicate a first resource period, for example, one period includes two TOs.

[0185] Exemplarily, each two bits can be used to indicate the index of the HARQ process associated with the first resource.

[0186] As shown in (b) of FIG. 6, taking TO1-TO4 as an example, the first resource. The first information can include 8 bits.

[0187] In a possible implementation, each two bits can also be used to indicate the resource utilization of one TO.

[0188] In the above example manner, the bit value can be used to indicate whether the corresponding first resource is used, for example, if the bit value is 0, it represents that the associated first resource is used, if the bit value is 0, it represents that the associated first resource is not used. Conversely, the same can also be true.

[0189] In the above example manner, the bit value can also be used to indicate whether the associated HARQ process is empty. The specific manner is similar and will not be repeated.

[0190] It should be noted that the access network device can configure multiple sets of dynamic grant-free transmission resources for the terminal device, and the first resource can be a resource of the same set of dynamic grant-free transmission resources, or a resource of different dynamic grant-free transmission resources.

[0191] It can be understood that in this case, at least one bit included in the first information indicates that the first resource has an association relationship with the multiple sets of dynamic grant-free transmission resources, which can be configured by the access network device to the terminal device, or can be pre-agreed, and the embodiments of the present application do not limit this.

[0192] Exemplarily, the first information can be UCI, carried in PUCCH or PUSCH (for example, puTO, previously used TO).

[0193] Exemplarily, the first information can also be a MAC CE, carried in PUSCH (for example, configured grant transmission report (CGTR)).

[0194] Exemplarily, the first information can be sent at the same time when the terminal device uses the first resource to send PUSCH.

[0195] Exemplarily, the first information can also be sent in an implicit manner, for example, carried on the resource (such as time domain resource, frequency domain resource, pilot resource, code domain resource, space domain resource, etc.) used by the terminal to send the uplink signal (such as PUSCH, PUCCH, reference signal, etc.).

[0196] Exemplarily, the first information can also be carried in the PUSCH sent in a dynamic grant manner.

[0197] Optionally, the terminal device can receive DCI or PDCCH configured by the access network device for dynamic grant PUSCH transmission, and determine whether to carry the first information when transmitting the PUSCH according to the received DCI or PDCCH.

[0198] As an example, whether to carry the first information is determined according to the format of the received DCI, the resource (time domain resource or frequency domain resource) of the received DCI or PDCCH.

[0199] As another example, whether to carry the first information is determined according to the resource (such as time domain resource, frequency domain resource, pilot resource, etc.) used for transmitting the PUSCH.

[0200] As another example, whether to carry the first information is determined according to the indication field in the DCI, for example, the indication field contains 1 bit, and the bit value of 0 represents transmitting the first information, and the bit value of 1 represents not transmitting the first information, and vice versa.

[0201] The above transmission mode of the first information is only an exemplary description, and does not limit the protection scope of the present application.

[0202] The following describes the triggering mode of the terminal device for transmitting the first information.

[0203] In a possible implementation, the terminal device can determine to trigger the transmission of the first information according to at least one of the following:

[0204] The reporting period or the timer, or the triggering event, or the signal quality or strength measurement result of the downlink signal.

[0205] For example, the terminal device can periodically trigger the transmission of the first information based on the reporting period, or the terminal device can trigger the transmission of the first information when or after the timer expires.

[0206] The reporting period resource (such as time domain resource or frequency domain resource) or the timer can be configured by the access network device, for example, the access network device configures the reporting period or the timer when configuring the dynamic grant transmission resource for the terminal device, or the reporting period resource or the timer can be configured separately through configuration information. The reporting period resource or the timer can also be previously agreed upon by the access network device and the terminal device, and the present application embodiment does not limit this.

[0207] For example, the triggering event can be whether the terminal device receives feedback from the access network device after transmitting data using the first resource. The feedback here includes, but is not limited to, acknowledge character (ACK) feedback of the access network device, or retransmission of the PUSCH (or a HARQ process used by the PUSCH) authorized or scheduled in a dynamic grant manner.

[0208] For example, the terminal device triggers reporting of the first information when the terminal device does not receive feedback after a certain time or a certain number of PUSCH transmissions.

[0209] For example, the terminal device triggers transmitting the first information when the terminal device measures a signal quality or strength of a downlink signal that exceeds a preset threshold.

[0210] In a possible implementation, the terminal device restarts the timer after transmitting the first information.

[0211] It can be understood that when the terminal device determines to trigger transmitting the first information according to one of the above conditions, the timer is restarted, and therefore there is no conflict when two triggering conditions are met at the same time.

[0212] Correspondingly, the access network device receives the first information.

[0213] The access network device determines, according to the first information, whether the transmission of the terminal device on the first resource is detected.

[0214] In other words, the access network device can determine, based on the first information, whether a missed detection occurs.

[0215] Specifically, the access network device can determine, according to the blind detection result and the first information, whether a missed detection occurs.

[0216] For example, the first information indicates that the terminal device uses the first resource for transmission, and the access network device does not detect the transmission when performing blind detection, and therefore the access network device can determine that a missed detection occurs.

[0217] For another example, when the first information indicates that the terminal device uses the first resource for transmission, and the access network device detects the transmission when performing blind detection, the access network device can determine that no missed detection occurs.

[0218] In a possible implementation, when the access network device determines that a missed detection occurs, the access network device can configure a third resource for the terminal device, where the third resource is a dynamic grant-free transmission resource.

[0219] Optionally, the third resource is a reconfigured dynamic grant-free transmission resource.

[0220] It can be understood that the access network device determines that the missed detection occurs, which can be a cause of the channel quality of the first resource being poor, and thus the access network device can timely reconfigure the dynamic grant-free transmission resource for the terminal device, so as to ensure the performance of the dynamic grant-free transmission.

[0221] 340, the access network device sends second information to the terminal device.

[0222] The second information is used to indicate whether the access network device detects the transmission of the terminal device on the first resource.

[0223] An optional understanding is that the second information is used to indicate whether the access network device has missed detection to the terminal device, or in other words, the second information is used to indicate the detection result of the access network device to the terminal device, and the terminal device can determine whether the access network device has missed detection. For example, the second information indicates to the terminal device that the data is not detected on the first resource, the terminal device transmits data using the first resource, and the terminal device can determine that the access network device has missed detection.

[0224] In a possible implementation, the terminal device can determine whether to continue to transmit data using the first resource according to the second information.

[0225] It can be understood that when the terminal device determines that the access network device has missed detection according to the second information, the terminal can suspend the use of the first resource to transmit uplink data, so as to avoid the transmission failure from affecting the transmission performance.

[0226] In another possible implementation, the terminal device can determine whether to trigger reconfiguration of the third resource according to the second information.

[0227] It can be understood that when the terminal device determines that the access network device has missed detection according to the second information, the terminal can actively trigger the reconfiguration of the dynamic grant-free transmission resource, so as to ensure the performance of the dynamic grant-free transmission.

[0228] It should be noted that the above step 340 is an optional step.

[0229] Based on the above technical solution, the access network device configures resources for dynamic grant-free or dynamic scheduling to the terminal device, and the terminal device uses part or all of the resources for uplink transmission. The terminal device can indicate to the access network device whether to use part or all of the dynamic grant-free or dynamic scheduling resources for uplink transmission, so as to determine whether the access network device has missed detection, and timely reconfigure the dynamic grant-free transmission resource, so as to avoid affecting the transmission performance.

[0230] By way of example, and without limitation, the embodiments of the present application can be used in uplink dynamic grant-free transmission scenarios, including but not limited to the various types of dynamic grant-free transmission introduced above, and can also be used in dynamic grant-free transmission between terminals.

[0231] It should be understood that other possible implementation manners of the embodiments of the present application are similar to the method 300 described above, and the description in the method 300 can be referred to, and details are not described herein.

[0232] It should be understood that the size of the sequence number of each process described above does not mean the order of execution, and the execution order of each process should be determined according to its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0233] The above mainly introduces the scheme provided by the embodiments of the present application from the perspective of interaction between each network element. It can be understood that each network element, such as a transmitting end device or a receiving end device, contains a corresponding hardware structure and / or software module for executing each function in order to achieve the above functions. Those skilled in the art should be aware that, in combination with the units and algorithm steps of the examples described in the embodiments disclosed herein, the present application can be realized in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the form of hardware or computer software driven hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0234] The embodiments of the present application can divide the function modules of the transmitting end device or the receiving end device according to the above method examples, for example, each function module can be divided according to each function, or two or more functions can be integrated in one processing module. The integrated module can be realized in the form of hardware or in the form of a software function module. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division. Actual implementation can have another division manner. The following takes dividing each function module according to each function as an example for description.

[0235] The above, in combination with FIG. 3 to FIG. 6, details the method provided by the embodiments of the present application. The following, in combination with FIG. 7 to FIG. 8, details the device provided by the embodiments of the present application. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment, and therefore, the content not described in detail can be referred to the method embodiment described above, and for brevity, details are not described herein.

[0236] FIG. 7 is a structural schematic diagram of a communication device provided by an embodiment of the present application.

[0237] The device 700 includes a transceiver unit 710 and a processing unit 720, wherein the transceiver unit 710 can be used to realize corresponding communication functions, and the processing unit 720 can be used for data processing.

[0238] Optionally, the transceiver unit 710 can also be referred to as a communication interface or a communication unit, including a transmitting unit and / or a receiving unit. The transceiver unit 710 can be a transceiver (including a transmitter and / or a receiver), an input / output interface (including an input and / or an output interface), a pin, or a circuit, etc. The transceiver unit 710 can be used to perform the steps of transmitting and / or receiving in the above method embodiments.

[0239] Optionally, the processing unit 720 can be a processor (which can include one or more), a processing circuit having processor function, etc., and can be used to perform other steps in the above method embodiments except for transmitting and receiving.

[0240] Optionally, the apparatus 700 further includes a storage unit, which can be a memory, an internal storage unit (e.g., a register, a cache, etc.), an external storage unit (e.g., a read-only memory, a random access memory, etc.), etc. The storage unit is used to store instructions, and the processing unit 720 executes the instructions stored in the storage unit to make the communication apparatus perform the above method.

[0241] In one design, the apparatus 700 can be used to perform the actions performed by the terminal device in each of the above method embodiments, e.g., the apparatus 700 can be used to perform the actions performed by the terminal device in the above method 300. In this case, the apparatus 700 can be a component of the terminal device, the transceiver unit 710 is used to perform the operations related to transceiving of the terminal device in the above method embodiments, and the processing unit 720 is used to perform the operations related to processing of the terminal device in the above method embodiments.

[0242] For example, the processing unit 720 is configured to determine first information, the first information being used to indicate whether the terminal device uses a first resource for transmission, the first resource being a resource without dynamic grant or dynamic scheduling; and the transceiver unit 710 is configured to send the first information through a second resource, a time domain position of the second resource being after a time domain position of the first resource, or there being overlap between the time domain position of the second resource and the time domain position of the first resource.

[0243] For another example, the transceiver unit 710 is further configured to receive second information, the second information being used to indicate whether the access network device detects the transmission of the terminal device on the first resource.

[0244] For another example, the processing unit 720 is further configured to determine, according to the second information, whether to continue using the first resource for transmission; or

[0245] The processing unit 720 is further configured to determine, according to the second information, whether to trigger the access network device to configure a third resource, the third resource being a resource without dynamic grant or dynamic scheduling.

[0246] For another example, the processing unit 720 is further configured to determine to trigger the sending of the first information according to at least one of: a reporting period or a timer; or, a triggering event; or, a signal quality or strength measurement result of a downlink signal.

[0247] It should be understood that the transceiver unit 710 and the processing unit 720 can also perform other operations performed by the terminal device in the above method 300, which are not repeated here.

[0248] In one design, the apparatus 700 can be configured to perform actions performed by the access network device in various method embodiments described above, e.g., the apparatus 700 can be configured to perform actions performed by the access network device in the above method 300. In this case, the apparatus 700 can be a component of the access network device, the transceiver unit 710 can be configured to perform transceiver-related operations performed by the access network device in the above method embodiments, and the processing unit 720 can be configured to perform processing-related operations performed by the access network device in the above method embodiments.

[0249] For example, the transceiver unit 710 is configured to send a configuration of a first resource; and the transceiver unit 710 is further configured to receive first information through a second resource, the first information being used to indicate whether a terminal device uses the first resource for transmission, the first resource being a dynamic grant / dynamic scheduling free resource, and a time domain location of the second resource being after a time domain location of the first resource or overlapping with the time domain location of the first resource.

[0250] For another example, the transceiver unit 710 is further configured to send second information, the second information being used to indicate whether the access network device detects transmission of the terminal device on the first resource.

[0251] For another example, when the first information indicates that the terminal device uses the first resource for transmission and it is determined according to the first information that the transmission of the terminal device on the first resource is not detected, the transceiver unit 710 is further configured to send a third resource, the third resource being a dynamic grant / dynamic scheduling free resource.

[0252] It should be understood that the transceiver unit 710 and the processing unit 720 can also perform other operations performed by the access network device in the above method 300, which are not repeated here.

[0253] It should also be understood that the apparatus 700 herein is embodied in the form of a functional block diagram. The term "unit" herein can refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (for example, a shared processor, a dedicated processor, or a group processor, etc.) and a memory for executing one or more software or firmware programs, a combination of logic circuitry and / or other suitable components that support the described functions. In an optional example, those skilled in the art can understand that the apparatus 700 can be embodied in the network device in the above embodiments, and can be used to execute the processes and / or steps corresponding to the network device in the above method embodiments. To avoid repetition, details are not described here.

[0254] The apparatus 700 of each of the above schemes has a function of implementing the corresponding steps performed by the terminal device in the above method, or the apparatus 700 of each of the above schemes has a function of implementing the corresponding steps performed by the access network device in the above method. The function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions; for example, the transceiver unit can be replaced by a transceiver (for example, the transmitting unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiver), and other units such as the processing unit can be replaced by a processor, which respectively performs the transceiving operation and the related processing operation in each method embodiment.

[0255] In addition, the transceiver unit 710 described above can also be a transceiver circuit (for example, which can include a receiving circuit and a transmitting circuit), and the processing unit can be a processing circuit.

[0256] It should be noted that the apparatus in FIG. 7 can be a network element or device in the above embodiments, or a chip or chip system, for example, a system on chip (SoC). The transceiver unit can be an input / output circuit, a communication interface; and the processing unit can be a processor or microprocessor integrated on the chip or an integrated circuit. This is not limited here.

[0257] FIG. 8 is a schematic diagram of a communication architecture according to an embodiment of the present application. The communication apparatus 800 shown in FIG. 8 includes a processor 810 and a transceiver 820. Optionally, the processor 810 and the transceiver 820 can be connected to each other through a bus 830. The communication apparatus 800 can be a terminal device or a network device.

[0258] Optionally, the communication device 800 can further include a memory 840. The memory 840 includes, but is not limited to, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), or a compact disc read-only memory (CD-ROM). The memory 840 is used to store relevant instructions and data.

[0259] The processor 810 is coupled to the memory 840, and is configured to execute instructions stored in the memory 840 to control the transceiver 820 to transmit and / or receive signals.

[0260] It should be understood that the processor 810 and the memory 840 described above can be combined into one processing device, and the processor 810 is configured to execute program codes stored in the memory 840 to implement the functions described above. In a specific implementation, the memory 840 can be integrated in the processor 810, or independent of the processor 810. It should be understood that the processor 810 can also correspond to each processing unit in the communication device described above, and the transceiver 820 can correspond to each receiving unit and transmitting unit in the communication device described above.

[0261] It should also be understood that the transceiver 820 can include a receiver (or receiver) and a transmitter (or transmitter). The transceiver can further include an antenna, and the number of antennas can be one or more. The transceiver can also be a communication interface or interface circuit.

[0262] Specifically, the communication device 800 can correspond to the terminal device in the method 300 according to the embodiments of the present application. The communication device 800 can include the units of the method performed by the terminal device in the method 300. It should be understood that the specific processes of each unit performing the corresponding steps have been described in detail in the method embodiments described above, and for the sake of brevity, will not be repeated here.

[0263] Specifically, the communication device 800 can correspond to the access network device in the method 300 according to the embodiments of the present application. The communication device 800 can include the units of the method performed by the access network device in the method 300. It should be understood that the specific processes of each unit performing the corresponding steps have been described in detail in the method embodiments described above, and for the sake of brevity, will not be repeated here.

[0264] When the communication device 800 is a chip, the chip includes an interface unit and a processing unit. The interface unit can be an input / output circuit or a communication interface; and the processing unit can be a processor or a microprocessor integrated on the chip or an integrated circuit.

[0265] In the implementation process, the steps of the above method can be completed by the integrated logic circuit of hardware in the processor or the instructions in the form of software. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as hardware processor execution completion, or executed by the combination of hardware and software modules in the processor. The software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, register, etc. The storage medium is located in the memory, and the processor reads the information in the memory, and combines the hardware to complete the steps of the above method. To avoid repetition, it will not be described in detail here.

[0266] It should be noted that the processor in the embodiments of the present application can be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the above method embodiments can be completed by the integrated logic circuit of hardware in the processor or the instructions in the form of software. The above processor can be a general processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component. The disclosed methods, steps and logic block diagrams in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can be any conventional processor. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as hardware decoding processor execution completion, or executed by the combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, register, etc. The storage medium is located in the memory, and the processor reads the information in the memory, and combines the hardware to complete the steps of the above method.

[0267] The present application also provides a computer readable medium having a computer program stored thereon, which, when executed by a computer, implements the functions of any of the above method embodiments.

[0268] The present application also provides a computer program product, which, when executed by a computer, implements the functions of any of the above method embodiments.

[0269] In the embodiments described above, all or some of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or some of the embodiments can be implemented by one or more computer programs, and can be stored in one or more computer readable storage media. When implemented by software, all or some of the embodiments can be implemented by one or more computer programs, and can be stored in one or more computer readable storage media. The computer readable storage media can be a magnetic disk, a floppy disk, a read-only memory (ROM), a random access memory (RAM), a flash memory, or any other suitable computer readable storage medium. The computer readable storage media can be fixed in place or can be removable and / or transportable. The computer readable storage media can be loaded into one or more computers, servers, or other programmable devices to cause the one or more computers, servers, or other programmable devices to execute the computer program instructions.

[0270] In the embodiments of the present application, the words "example" and "exemplary" are used to mean serving as an example, instance, or illustration. Any implementation described as "example" or "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations. Rather, use of the terms is intended to present concepts in a concrete manner.

[0271] It is to be understood that the terminology "example" used throughout this specification intends that a particular feature, structure, or characteristic in some embodiments is included in at least one embodiment. Therefore, various embodiments as described throughout the specification are not necessarily all referring to the same embodiments. Furthermore, the particular features, structures, or characteristics can be incorporated in any suitable manner in one or more embodiments.

[0272] It should be understood that the magnitude of the serial number of each process described above does not mean the order of execution in various embodiments of the present application, and the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. The names of all nodes and messages in the present application are only names set by the present application for convenience of description, and the names in the actual network can be different, and the present application should not be understood as limiting the names of various nodes and messages, on the contrary, any name with the same or similar function as the nodes or messages used in the present application is regarded as a method or equivalent replacement of the present application, and is within the protection scope of the present application.

[0273] It should also be understood that in the present application, "when", "if" and "if" all refer to the corresponding processing of the UE or the base station under certain objective circumstances, not the time limit, and it is not required that the UE or the base station must have a judgment action when implementing, nor does it mean that there are other limitations.

[0274] In addition, the terms "system" and "network" are often used interchangeably in this paper. The term "and / or" in this paper is only a description of the association relationship between the associated objects, which means that there can be three relationships, for example, A and / or B can represent: A exists alone, A and B exist together, B exists alone, and the three cases.

[0275] The term "at least one" or "at least one" in this paper means all or any combination of the listed items, for example, "at least one of A, B and C" can mean: A exists alone, B exists alone, C exists alone, A and B exist together, B and C exist together, A, B and C exist together. This paper means one or more. "Multiple" means two or more.

[0276] It should be understood that in various embodiments of the present application, the terms "include", "contain", "have" and their variants mean "include but not limited to", unless otherwise specifically emphasized.

[0277] It should be understood that in various embodiments of the present application, the first, second and various numerical numbers are only distinguished for convenience of description, and are not used to limit the scope of the embodiments of the present application. For example, to distinguish different information, etc.

[0278] Those skilled in the art can clearly understand that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0279] Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

[0280] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the above-described device embodiments are only schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0281] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0282] In addition, each functional unit in each embodiment of the present application can be integrated into a processing unit, or each unit can exist physically independently, or two or more units can be integrated into one unit.

[0283] If the functions are implemented in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or the parts that contribute to the prior art or parts of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0284] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A communication method, characterized in that: Applied to terminal equipment, including: Determining first information, where the first information is used to indicate whether the terminal device uses a first resource for transmission, where the first resource is a resource that is free of dynamic authorization or dynamic scheduling; The first information is sent through a second resource, and the time domain position of the second resource is after the time domain position of the first resource, or the time domain position of the second resource overlaps with the time domain position of the first resource.

2. The method according to claim 1, characterized in that The first resource includes at least one resource, and a time domain position of the second resource overlaps with a time domain position of the first resource, including: The time domain position of the second resource overlaps with the time domain position of the latest resource in the time domain among the at least one resource.

3. The method according to claim 1 or 2, characterized in that The method further comprises: Receive second information, where the second information is used to indicate whether the access network device detects the transmission of the terminal device on the first resource.

4. The method according to claim 3, characterized in that The method further comprises: determining whether to continue using the first resource for transmission according to the second information; or Determine whether to trigger the access network device to configure a third resource according to the second information, where the third resource is a resource that does not require dynamic authorization or dynamic scheduling.

5. The method according to any one of claims 1 to 4, characterized in that The first information includes at least one bit, and the at least one bit is used to indicate whether to use the first resource for transmission.

6. The method according to claim 5, characterized in that Each bit in the at least one bit is associated with one of the first resources, or each bit in the at least one bit is associated with one of the resource periods of the first resource, or each bit in the at least one bit is associated with one of the hybrid automatic repeat request HARQ processes associated with the first resource.

7. The method according to any one of claims 1 to 6, characterized in that The sending of the first information through the second resource, the method further comprising: Triggering the sending of the first information is determined according to at least one of the following: reporting period or timer; or triggering event; or Signal quality or strength measurement of the downlink signal.

8. The method according to any one of claims 1 to 7, characterized in that The first information is carried on any one of a physical uplink shared channel PUSCH, a physical uplink control channel PUCCH, or resources used to send uplink signals.

9. The method according to any one of claims 1 to 8, characterized in that The first information is a media access control element MAC CE or uplink control information UCI.

10. The method according to any one of claims 1 to 9, characterized in that The second resource is a resource that does not require dynamic authorization or dynamic scheduling.

11. A communication method, characterized in that: Applicable to access network equipment, including: Sending a configuration of a first resource; First information is received through a second resource, where the first information is used to indicate whether a terminal device uses the first resource for transmission, the first resource is a resource that is exempt from dynamic authorization or dynamic scheduling, the time domain position of the second resource is after the time domain position of the first resource, or the time domain position of the second resource overlaps with the time domain position of the first resource.

12. The method according to claim 11, characterized in that The first resource includes at least one resource, and a time domain location of the second resource overlaps with a time domain location of the first resource, including: The time domain position of the second resource overlaps with the time domain position of the latest resource in the time domain among the at least one resource.

13. The method according to claim 11 or 12, characterized in that The method further comprises: Send second information, where the second information is used to indicate whether the access network device detects the transmission of the terminal device on the first resource.

14. The method according to claim 11 or 12, characterized in that The method further comprises: When the first information indicates that the terminal device uses the first resource for transmission, and it is determined based on the first information that the terminal device's transmission on the first resource is not detected, a third resource is sent, and the third resource is a resource that is free of dynamic authorization or dynamic scheduling.

15. The method according to any one of claims 11 to 14, characterized in that The first information includes at least one bit, and the at least one bit is used to indicate whether to use the first resource for transmission.

16. The method according to claim 15, characterized in that Each bit in the at least one bit is associated with one of the first resources, or each bit in the at least one bit is associated with one of the resource periods of the first resource, or each bit in the at least one bit is associated with one of the HARQ processes associated with the first resource.

17. The method according to any one of claims 11 to 16, characterized in that The first information is carried on any one of a physical uplink shared channel PUSCH, a physical uplink control channel PUCCH, and resources used to send uplink signals.

18. The method according to any one of claims 11 to 17, characterized in that The first information is a media access control element MAC CE or uplink control information UCI.

19. The method according to any one of claims 11 to 18, characterized in that The second resource is a resource that does not require dynamic authorization or dynamic scheduling.

20. A communication device, characterized in that: The method comprises modules or units for executing the method according to any one of claims 1 to 19.

21. A communication device, characterized in that: The method comprises a processor configured to execute the method according to any one of claims 1 to 19.

22. The communication device according to claim 21, wherein: The communication device further includes a memory and / or an interface, wherein the memory is used to store computer programs or instructions, and the interface is used to read instructions from the memory.

23. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program or instructions, and when the computer program or instructions are executed on a communication device, the communication device is caused to perform the method according to any one of claims 1 to 19.

24. A computer program product, characterized in that The computer program product comprises a computer program or instructions for performing the method according to any one of claims 1 to 19.

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