Communication method and related equipment

Abstract

A communication method and a related device, in a process of updating a periodic resource, a terminal device can reinitialize the periodic resource based on activation information (i.e., second information) of the resource so as to realize a resource updating process, thereby reducing signaling overhead and reducing communication delay. Furthermore, under the condition that the terminal device determines that the time interval between the start symbol of the first resource and the end symbol of the second resource is greater than or equal to N time units, the terminal device can process second information used for activating a second periodic resource based on the N time units and determine the second periodic resource, in other words, the terminal device has sufficient time to execute the resource updating process, the transmission success rate of the terminal device in the periodic resources can be improved, and then the transmission robustness of the periodic resources is improved.

Description

Technical Field

[0001] The present application relates to the field of wireless technology, and in particular to a communication method and related equipment. Background Art

[0002] Wireless communication can be a transmission communication between two or more communication nodes that is not transmitted through conductors or cables or is transmitted through air interfaces. For example, the communication nodes include network devices and terminal devices. Generally, the terminal device can access the network device and receive scheduling and instruction information from the network device to achieve wireless communication.

[0003] At present, the terminal device can send uplink data or receive downlink data based on the transmission resources scheduled by the network device. Among them, the network device can configure periodic resources for the terminal device through configuration information, and activate the periodic resources through an activation signaling to save the signaling overhead of the scheduling process. Generally, the network device can send new configuration information and activate the new configuration information through new activation signaling to achieve the update of periodic resources.

[0004] However, in the above technical solution, after activating the periodic resources, the network device needs to use new configuration information and new activation signaling to implement the resource update process, which leads to an increase in signaling overhead and an increase in communication delay. Summary of the invention

[0005] The present application provides a communication method and related equipment for reinitializing periodic resources through resource activation information (i.e., second information) to implement a resource update process, thereby reducing signaling overhead and reducing communication delay. In addition, the terminal device can process the second information for activating the second periodic resource based on N time units and determine the second periodic resource, that is, the terminal device has sufficient time to perform the resource update process, which can improve the transmission success rate of the terminal device in the periodic resource, thereby improving the transmission robustness of the periodic resource.

[0006] The first aspect of the present application provides a communication method, which is executed by a terminal device (or terminal), or the method is executed by some components in the terminal device (such as a processor, a chip or a chip system, etc.), or the method can also be implemented by a logic module or software that can realize all or part of the terminal device functions. In the first aspect and its possible implementation, the method is described as an example of being executed by a terminal device. In this method, the terminal device receives a first message, and the first message is used to activate a first periodic resource, and the first periodic resource includes a first resource; the terminal device receives a second message on a second resource, and the second message is used to activate a second periodic resource, and the second periodic resource is obtained by re-initializing the first periodic resource; under the condition that the time interval between the start symbol of the first resource and the end symbol of the second resource is greater than or equal to N time units, the terminal device receives a third downlink data on a third resource, and N is a positive integer; wherein the first resource is the closest resource after the second resource in the first periodic resource, and the third resource is the earliest resource in the time domain in the second periodic resource.

[0007] Based on the above technical solution, after the terminal device receives the first information for activating the first periodic resource, the terminal device receives the second information for activating the second periodic resource on the second resource, and the second periodic resource is obtained by reinitializing the first periodic resource. Thereafter, under the condition that the time interval between the start symbol of the first resource in the first periodic resource and the end symbol of the second resource is greater than or equal to N time units, the terminal device receives the third downlink data on the earliest third resource in the time domain in the second periodic resource. Thus, in the process of updating the periodic resources, the terminal device can reinitialize the periodic resources based on the activation information of the resources (i.e., the second information) to implement the resource update process, thereby reducing the signaling overhead and reducing the communication delay.

[0008] In addition, under the condition that the terminal device determines that the time interval between the start symbol of the first resource and the end symbol of the second resource is greater than or equal to N time units, since the time interval between the first resource and the second resource is relatively long, the terminal device can process the second information for activating the second periodic resource based on the N time units and determine the second periodic resource, that is, the terminal device has sufficient time to execute the resource update process, which can improve the transmission success rate of the terminal device in the periodic resources, and thereby improve the transmission robustness of the periodic resources.

[0009] In a possible implementation manner of the first aspect, the method also includes: under the condition that the time interval between the start symbol of the first resource and the end symbol of the second resource is less than N time units, the terminal device discards (or ignores) the second information (or the terminal device determines that the second periodic resource activated by the second information is not effective).

[0010] Based on the above technical solution, under the condition that the time interval between the start symbol of the first resource and the end symbol of the second resource is less than N time units, the terminal device may not be able to process the second information in time and update the first periodic resource to the second periodic resource due to the short time interval between the first resource and the second resource. For this reason, the terminal device may believe that the network device is incorrectly configured, or the terminal device determines that the second information sent by the network device is erroneous information. Accordingly, the terminal device can perform at least one of the following: discard the second information, do not receive or decode the first downlink data, and do not receive or decode the third downlink data to avoid unnecessary processing overhead.

[0011] In other words, when the network device wants to send the second information to the terminal device, the time interval between the start symbol of the first resource and the end symbol of the second resource should be greater than or equal to N time units, that is, the network device should send the second information as early as possible before the first resource, otherwise the terminal device will think that the second information is an error message sent by the network device. It can also be understood that under the condition that the time interval between the start symbol of the first resource and the end symbol of the second resource is less than N time units, the terminal device does not expect to receive the second information on the second resource. Alternatively, under the condition that the time interval between the start symbol of the first resource and the end symbol of the second resource is greater than or equal to N time units, the terminal device expects to receive the second information on the second resource.

[0012] The second aspect of the present application provides a communication method, which is executed by a terminal device (or terminal), or the method is executed by some components in the terminal device (such as a processor, a chip or a chip system, etc.), or the method can also be implemented by a logic module or software that can realize all or part of the terminal device functions. In the second aspect and its possible implementation, the method is described as an example of being executed by a terminal device. In this method, the terminal device receives a first message, and the first message is used to activate a first periodic resource, and the first periodic resource includes a first resource; the terminal device receives a second message on a second resource, and the second information is used to activate a second periodic resource, and the second periodic resource is obtained by reinitializing the first periodic resource, and the second periodic resource includes a third resource; under the condition that the time interval between the start symbol of the time slot where the first resource is located and the end symbol of the second resource is greater than or equal to N time units, the terminal device receives a third downlink data on the third resource, and N is a positive integer; wherein the first resource is the closest resource after the second resource in the first periodic resource, and the third resource is the earliest resource in the time domain in the second periodic resource.

[0013] Based on the above technical solution, after the terminal device receives the first information for activating the first periodic resource, the terminal device receives the second information for activating the second periodic resource on the second resource, and the second periodic resource is obtained by reinitializing the first periodic resource. Thereafter, under the condition that the time interval between the start symbol of the time slot where the first resource in the first periodic resource is located and the end symbol of the second resource is greater than or equal to N time units, the terminal device receives the third downlink data on the earliest third resource in the time domain in the second periodic resource. Thus, in the process of updating the periodic resources, the terminal device can reinitialize the periodic resources based on the activation information of the resources (i.e., the second information) to implement the resource update process, thereby reducing the signaling overhead and reducing the communication delay.

[0014] In addition, under the condition that the terminal device determines that the time interval between the start symbol of the time slot where the first resource is located and the end symbol of the second resource is greater than or equal to N time units, since the time interval between the first resource and the second resource is relatively long, the terminal device can process the second information for activating the second periodic resource based on the N time units and determine the second periodic resource, that is, the terminal device has sufficient time to execute the resource update process, which can improve the transmission success rate of the terminal device in the periodic resources, and thereby improve the transmission robustness of the periodic resources.

[0015] In a possible implementation of the second aspect, the method also includes: under the condition that the time interval between the start symbol of the time slot where the first resource is located and the end symbol of the second resource is less than N time units, the terminal device discards (or ignores) the second information (or the terminal device determines that the second periodic resource activated by the second information is not effective).

[0016] Based on the above technical solution, under the condition that the terminal device determines that the time interval between the start symbol of the time slot where the first resource is located and the end symbol of the second resource is less than N time units, due to the short time interval between the first resource and the second resource, the terminal device may not be able to process the second information in time and update the first periodic resource to the second periodic resource. For this reason, the terminal device may believe that the network device is incorrectly configured, or the terminal device determines that the second information sent by the network device is erroneous information. Accordingly, the terminal device can perform at least one of the following: discard the second information, do not receive or decode the first downlink data, do not receive or decode the third downlink data, and do not update the first periodic resource to the second periodic resource to avoid unnecessary processing overhead.

[0017] In other words, when the network device wants to send the second information to the terminal device, the time interval between the start symbol of the time slot where the first resource is located and the end symbol of the second resource should be greater than or equal to N time units, that is, the network device should send the second information as early as possible before the first resource, otherwise the terminal device will think that the second information is an error message sent by the network device. It can also be understood that under the condition that the time interval between the start symbol of the time slot where the first resource is located and the end symbol of the second resource is less than N time units, the terminal device does not expect to receive the second information on the second resource. Alternatively, under the condition that the time interval between the start symbol of the time slot where the first resource is located and the end symbol of the second resource is greater than or equal to N time units, the terminal device expects to receive the second information on the second resource.

[0018] The third aspect of the present application provides a communication method, which is executed by a network device, or the method is executed by some components in the network device (such as a processor, a chip or a chip system, etc.), or the method can also be implemented by a logic module or software that can realize all or part of the network device functions. In the third aspect and its possible implementation, the communication method is described as an example of being executed by a network device. In this method, the network device sends a first message, and the first message is used to activate a first periodic resource, and the first periodic resource includes a first resource; the network device sends a second message on a second resource, and the second message is used to activate a second periodic resource, and the second periodic resource is obtained by reinitializing the first periodic resource; under the condition that the time interval between the start symbol of the first resource and the end symbol of the second resource is greater than or equal to N time units, the network device sends a third downlink data on a third resource, and N is a positive integer; wherein the first resource is the closest resource in the first periodic resource after the second resource, and the third resource is the earliest resource in the time domain in the second periodic resource.

[0019] Based on the above technical solution, after the network device sends the first information for activating the first periodic resource, the network device sends the second information for activating the second periodic resource on the second resource, and the second periodic resource is obtained by reinitializing the first periodic resource. Thereafter, under the condition that the time interval between the start symbol of the first resource in the first periodic resource and the end symbol of the second resource is greater than or equal to N time units, the network device sends the third downlink data on the earliest third resource in the time domain in the second periodic resource. Thus, in the process of updating the periodic resources, the network device can reinitialize the periodic resources based on the activation information of the resources (i.e., the second information) to implement the resource update process, thereby reducing the signaling overhead and reducing the communication delay.

[0020] In addition, under the condition that the network device determines that the time interval between the start symbol of the first resource and the end symbol of the second resource is greater than or equal to N time units, since the time interval between the first resource and the second resource is relatively long, the terminal device can process the second information for activating the second periodic resource based on the N time units and determine the second periodic resource, that is, the terminal device has sufficient time to execute the resource update process, which can improve the transmission success rate of the terminal device in the periodic resources, and thereby improve the transmission robustness of the periodic resources.

[0021] The fourth aspect of the present application provides a communication method, which is executed by a network device, or the method is executed by some components (such as a processor, a chip or a chip system, etc.) in the network device, or the method can also be implemented by a logic module or software that can realize all or part of the network device function. In the fourth aspect and its possible implementation, the communication method is described as an example of being executed by a network device. In this method, the network device sends a first message, and the first message is used to activate a first periodic resource, and the first periodic resource includes a first resource; the network device sends a second message on a second resource, and the second message is used to activate a second periodic resource, and the second periodic resource is obtained by reinitializing the first periodic resource, and the second periodic resource includes a third resource; under the condition that the time interval between the start symbol of the time slot where the first resource is located and the end symbol of the second resource is greater than or equal to N time units, the network device sends a third downlink data on the third resource, and N is a positive integer; wherein the first resource is the nearest resource after the second resource in the first periodic resource, and the third resource is the earliest resource in the time domain in the second periodic resource.

[0022] Based on the above technical solution, after the network device sends the first information for activating the first periodic resource, the network device sends the second information for activating the second periodic resource on the second resource, and the second periodic resource is obtained by reinitializing the first periodic resource. Thereafter, under the condition that the time interval between the start symbol of the time slot where the first resource in the first periodic resource is located and the end symbol of the second resource is greater than or equal to N time units, the network device sends the third downlink data on the earliest third resource in the time domain in the second periodic resource. Thus, in the process of updating the periodic resources, the terminal device can reinitialize the periodic resources based on the activation information of the resources (i.e., the second information) to implement the resource update process, thereby reducing the signaling overhead and reducing the communication delay.

[0023] In addition, under the condition that the network device determines that the time interval between the start symbol of the time slot where the first resource is located and the end symbol of the second resource is greater than or equal to N time units, since the time interval between the first resource and the second resource is relatively long, the terminal device can process the second information for activating the second periodic resource based on the N time units and determine the second periodic resource, that is, the terminal device has sufficient time to execute the resource update process, which can improve the transmission success rate of the terminal device in the periodic resources, and thereby improve the transmission robustness of the periodic resources.

[0024] In a fifth aspect of the present application, a communication device is provided, which can implement the method in any possible implementation of any aspect of the first to fourth aspects. The device includes corresponding units or modules for executing the above method. The units or modules included in the device can be implemented by software and / or hardware. For example, the device can be a terminal device or a network device, or the device can be a component in a terminal device or a network device (such as a processor, a chip or a chip system, etc.), or the device can also be a logic module or software that can implement all or part of the functions of the terminal device or the network device. Among them, the device includes a processing unit and a transceiver unit, and the constituent modules of the communication device can also be used to execute the steps performed in each possible implementation of any aspect of the first to fourth aspects, and achieve the corresponding technical effects. For details, please refer to the above description, which will not be repeated here.

[0025] A sixth aspect of an embodiment of the present application provides a communication device, comprising at least one processor, wherein the at least one processor is used to execute programs or instructions in a memory so that the device implements the method executed in each possible implementation manner of any one of the first to fourth aspects mentioned above.

[0026] A seventh aspect of an embodiment of the present application provides a communication device, comprising at least one logic circuit and an input / output interface; the logic circuit is used to execute the method executed in any possible implementation of any one of the first to fourth aspects mentioned above.

[0027] An eighth aspect of an embodiment of the present application provides a computer-readable storage medium, which is used to store one or more computer-executable instructions. When the computer-executable instructions are executed by a processor, the processor executes a method as performed in any possible implementation of any one of the first to fourth aspects above.

[0028] A ninth aspect of an embodiment of the present application provides a computer program product. When a computer program in the computer program product is executed by a processor, the processor executes a method executed in any possible implementation of any one of the first to fourth aspects above.

[0029] A tenth aspect of an embodiment of the present application provides a chip system, which includes at least one processor for supporting a communication device to implement a method executed in any possible implementation manner of any one of the first to fourth aspects above.

[0030] In a possible design, the chip system may also include a memory for storing program instructions and data necessary for the first communication device. The chip system may be composed of a chip, or may include a chip and other discrete devices. Optionally, the chip system also includes an interface circuit, which provides program instructions and / or data for the at least one processor. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of a communication system provided for this application;

[0032] Figure 2a A schematic diagram of activation of periodic resources involved in this application;

[0033] Figure 2b Another schematic diagram of activation of periodic resources involved in this application;

[0034] Figure 2c Another schematic diagram of activation of periodic resources involved in this application;

[0035] Figure 3 A schematic diagram of the communication method provided by the present application;

[0036] Figure 4a A schematic diagram of the time domain relationship of different information in this application;

[0037] Figure 4b Another schematic diagram of the time domain relationship of different information in this application;

[0038] Figure 5 Another schematic diagram of the communication method provided by the present application;

[0039] Figure 6 Another schematic diagram of the time domain relationship of different information in this application;

[0040] Figure 7 Another schematic diagram of the communication method provided by the present application;

[0041] Figure 8 Another schematic diagram of the time domain relationship of different information in this application;

[0042] Fig. 9 Another schematic diagram of the communication method provided by the present application;

[0043] Fig.10 A schematic diagram of a communication device provided for this application;

[0044] Fig.11 Another schematic diagram of a communication device provided by the present application. DETAILED DESCRIPTION

[0045] First, some terms in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

[0046] (1) Configuration and pre-configuration: In this application, configuration and pre-configuration will be used at the same time. Configuration refers to the base station or server and other network devices sending some parameter configuration information or parameter values ​​to the terminal through messages or signaling, so that the terminal can determine the communication parameters or resources during transmission based on these values ​​or information. Pre-configuration is similar to configuration. It can be a method in which a base station or server and other network devices send parameter information or values ​​to the terminal through a communication link or carrier; it can also be a definition of corresponding parameters or parameter values ​​given in the standard, or by setting the relevant parameters or values ​​in the terminal device in advance. This application does not limit this. Furthermore, these values ​​and parameters can be changed or updated.

[0047] (2) In this application, "used for indication" may include being used for direct indication and being used for indirect indication. When describing that a certain indication information is used for indicating A, it can be understood that the indication information carries A, directly indicates A, or indirectly indicates A.

[0048] 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. For example, it can be implemented by direct indication, such as by indicating the information to be indicated itself or the index of the information to be indicated. It can also be implemented by indirectly 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, specified by the protocol), thereby reducing the indication overhead to a certain extent.

[0049] The information to be indicated can be sent as a whole, or 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. The specific sending method is not limited in this application. Among them, the sending period and / or sending time of these sub-information can be pre-defined, for example, pre-defined according to the protocol, or can be configured by the transmitting device by sending configuration information to the receiving device. Among them, the configuration information can include, for example, but not limited to, one or a combination of at least two of RRC signaling, medium access control (MAC) layer signaling and physical layer signaling. Among them, MAC layer signaling, for example, includes MAC CE; physical layer signaling, for example, includes downlink control information (DCI).

[0050] (3) The terms "system" and "network" in the embodiments of the present application can be used interchangeably. "At least one" means one or more, and "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the objects associated with each other are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, "at least one of A, B and C" includes A, B, C, AB, AC, BC or ABC. And, unless otherwise specified, the ordinal numbers such as "first" and "second" mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, timing, priority or importance of multiple objects.

[0051] (4) "Send" and "receive" in the embodiments of the present application indicate the direction of signal transmission. In the present application, when entity A sends information to entity B, it can be that A sends it directly to B, or that A sends it indirectly to B through other entities. Similarly, when entity B receives information from entity A, it can be that entity B directly receives the information sent by entity A, or that entity B indirectly receives the information sent by entity A through other entities. Entities A and B here can be RAN nodes or terminals, or modules inside RAN nodes or terminals. The sending and receiving of information can be information interaction between a RAN node and a terminal, for example, information interaction between a base station and a terminal; the sending and receiving of information can also be information interaction between two RAN nodes, for example, information interaction between a CU and a DU; the sending and receiving of information can also be information interaction between different modules inside a device, for example, information interaction between a terminal chip and other modules of the terminal, or information interaction between a base station chip and other modules in the base station. "Send" can also be understood as the "output" of a chip interface, and "receive" can also be understood as the "input" of a chip interface.

[0052] See also Figure 1 , is a schematic diagram of the architecture of a communication system 1000 used in an embodiment of the present application. Figure 1 As shown, the communication system includes a radio access network (RAN) 100 and a core network 200. Optionally, the communication system 1000 may also include the Internet 300. The RAN 100 includes at least one RAN node (such as Figure 1 110a and 110b in the figure, collectively referred to as 110), may also include at least one terminal (such as Figure 1 RAN 100 may also include other RAN nodes, such as wireless relay equipment and / or wireless backhaul equipment ( Figure 1 (not shown in the figure). The terminal 120 is connected to the RAN node 110 by wireless means, and the RAN node 110 is connected to the core network 200 by wireless or wired means. The core network device in the core network 200 and the RAN node 110 in the RAN 100 may be independent and different physical devices, or may be the same physical device that integrates the logical functions of the core network device and the logical functions of the RAN node. Terminals and terminals and RAN nodes and RAN nodes may be connected to each other by wired or wireless means.

[0053] RAN100 may be an evolved universal terrestrial radio access (E-UTRA) system, a new radio (NR) system, and a future radio access system defined in the 3rd generation partnership project (3GPP). RAN100 may also include two or more of the above-mentioned different radio access systems. RAN100 may also be an open RAN (O-RAN).

[0054] RAN node, also known as radio access network equipment, RAN entity or access node, is used to help terminals access the communication system wirelessly. In one application scenario, the RAN node can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next generation NodeB (gNB) in the fifth generation (5G) mobile communication system, a next generation NodeB in the sixth generation (6G) mobile communication system, or a base station in a future mobile communication system. RAN nodes can be macro base stations (such as Figure 1 110a), or a micro base station or an indoor station (such as Figure 1 110b) in the figure, it can also be a relay node or a donor node.

[0055] In another application scenario, the cooperation of multiple RAN nodes can be used to help the terminal achieve wireless access, and different RAN nodes respectively implement part of the functions of the base station. For example, the RAN node can be a centralized unit (CU), a distributed unit (DU) or a radio unit (RU). The CU here completes the functions of the radio resource control (RRC) protocol and the packet data convergence protocol (PDCP) of the base station, and can also complete the function of the service data adaptation protocol (SDAP); the DU completes the functions of the radio link control layer and the MAC layer of the base station, and can also complete the functions of part of the physical layer or all of the physical layer. For the specific description of the above-mentioned various protocol layers, please refer to the relevant technical specifications of 3GPP. RU can be used to implement the transceiver function of the radio frequency signal. CU and DU can be two independent RAN nodes, or they can be integrated in the same RAN node, such as integrated in the baseband unit (BBU). RU can be included in the radio frequency equipment, such as the remote radio unit (RRU) or the active antenna unit (AAU). The CU can be further divided into two types of RAN nodes: CU-control plane and CU-user plane.

[0056] In different systems, RAN nodes may have different names. For example, in an O-RAN system, CU may be called an open CU (open CU, O-CU), DU may be called an open DU (open DU, O-DU), and RU may be called an open RU (open RU, O-RU). The RAN node in the embodiment of the present application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module. For example, the RAN node may be a server loaded with a corresponding software module. The embodiments of the present application do not limit the specific technology and specific device form adopted by the RAN node. For the convenience of description, the following description takes a base station as an example of a RAN node.

[0057] A terminal is a device with wireless transceiver function, which can send signals to a base station or receive signals from a base station. A terminal can also be called a terminal device, user equipment (UE), a mobile station, a mobile terminal, etc. The terminal can be widely used in various scenarios, for example, device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IOT), virtual reality, augmented reality, industrial control, automatic driving, telemedicine, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, an airplane, a ship, a robot, a mechanical arm, a smart home device, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal.

[0058] Base stations and terminals can be fixed or movable. Base stations and terminals can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on airplanes, balloons, and artificial satellites. The embodiments of this application do not limit the application scenarios of base stations and terminals.

[0059] The roles of the base station and the terminal can be relative, for example, Figure 1 The helicopter or drone 120i in the figure can be configured as a mobile base station. For the terminal 120j that accesses the wireless access network 100 through 120i, the terminal 120i is a base station; but for the base station 110a, 120i is a terminal, that is, 110a and 120i communicate through the wireless air interface protocol. Of course, 110a and 120i can also communicate through the interface protocol between base stations. In this case, relative to 110a, 120i is also a base station. Therefore, base stations and terminals can be collectively referred to as communication devices. Figure 1 110a and 110b in the figure may be referred to as communication devices having base station functions. Figure 1 120a-120j in the figure can be called communication devices with terminal functions.

[0060] Base stations and terminals, base stations and base stations, and terminals and terminals can communicate through authorized spectrum, unauthorized spectrum, or both; they can communicate through spectrum below 6 gigahertz (GHz), spectrum above 6 GHz, or spectrum below 6 GHz and spectrum above 6 GHz. The embodiments of the present application do not limit the spectrum resources used for wireless communication.

[0061] In the embodiments of the present application, the functions of the base station may also be performed by a module (such as a chip) in the base station, or by a control subsystem including the base station function. The control subsystem including the base station function here may be a control center in the above-mentioned application scenarios such as smart grid, industrial control, smart transportation, and smart city. The functions of the terminal may also be performed by a module (such as a chip or a modem) in the terminal, or by a device including the terminal function.

[0062] In this application, the base station sends a downlink signal or downlink information to the terminal, and the downlink information is carried on the downlink channel; the terminal sends an uplink signal or uplink information to the base station, and the uplink information is carried on the uplink channel. In order to communicate with the base station, the terminal needs to establish a wireless connection with the cell controlled by the base station. The cell with which the terminal has established a wireless connection is called the service cell of the terminal. When the terminal communicates with the service cell, it will also be interfered by signals from neighboring cells.

[0063] In wireless communication systems (such as Figure 1 In the communication system shown in the figure, the terminal device can send uplink data or receive downlink data based on the transmission resources scheduled by the network device. Among them, the network device can configure periodic resources for the terminal device through configuration information, and activate the periodic resources through an activation signaling to save the signaling overhead of the scheduling process. Generally, the network device can send new configuration information and activate the new configuration information through new activation signaling to achieve the update of periodic resources. The following will take the resource configured by the network device as a downlink resource as an example, and describe the periodic resource in combination with some implementation examples.

[0064] like Figure 2a As shown, the downlink periodic resource is an implementation example of a physical downlink shared uplink channel (PDSCH) resource of downlink semi-persistent scheduling (DL SPS). Figure 2aIn the process, the terminal device receives indication information (such as DCI) in the physical downlink control channel (PDCCH), which can be used to activate the semi-persistent scheduling physical downlink shared uplink channel (SPS PDSCH). The terminal device can then receive downlink data through the SPS PDSCH based on different periods. It can be seen that the characteristic of semi-persistent scheduling is one-time authorization and periodic use, which can effectively save the PDCCH resources used by the system for scheduling indication.

[0065] It should be understood that the period-related information of SPS PDSCH can be configured through RRC messages. For example, the periodicity field / information element in the RRC message has a value range of 10, 20, 32, 40, 64, 80, 128, 160, 320, 640, and the unit is ms. Or it can be the periodicity extension-R16 (periodicityExt-r16) field / information element in the RRC message, with a value range of 1 to 5120, and the unit is milliseconds ms. When the RRC message is periodicityExt-r16, the period corresponding to different subcarrier spacings is a constant term multiplied by the value configured by periodicityExt-r16. Taking the subcarrier spacing of 15 kHz as an example, the value range of periodicityExt-r16 is 1 to 640, and the period is the coefficient 1 multiplied by periodicityExt-r16. Taking the subcarrier spacing of 30kHz as an example, the value range of periodicityExt-r16 is 1 to 1280, and the period is 0.5 multiplied by periodicityExt-r16. The periods corresponding to other subcarrier spacings are not described in detail.

[0066] It should be noted that after the terminal device activates the SPS PDSCH based on the indication of a certain DCI, the terminal device can perform hybrid automatic repeat request acknowledgment (HARQ ACK or HARQ-ACK) feedback on the received SPS PDSCH, and the HARQ feedback is used to indicate whether the SPS PDSCH is successfully received. In other words, after the terminal device sends the HARQ feedback, the network device can determine that the terminal device has successfully received the DCI, that is, the terminal device does not need to send the HARQ feedback corresponding to the DCI.

[0067] In an implementation example, in release 15 (R15), one cell corresponds to a set of SPS configurations, for example, the minimum period may be 10 milliseconds (ms).

[0068] In another implementation example, in release 16 (R16), a cell configuration can correspond to up to 8 sets of SPS configurations (occupying up to 8 processes, but from the configuration point of view, one set of configuration can correspond to multiple processes), and the minimum period is 1 slot. The network device can configure one or more sets of SPS configurations in one cell for the terminal device through high-level parameters (such as parameters carried by RRC messages). Figure 2b As shown, the network device can configure one component carrier (CC) for the terminal device (CC1 is taken as an example in the figure), and the CC1 can correspond to three sets of SPS configurations.

[0069] exist Figure 2b In CC1 shown, the network device can activate the first set of SPS configurations through PDCCH 1. For example, PDCCH 1 can carry DCI 1, and the HARQ process number in the DCI 1 is 0 to activate the SPS PDSCH on the period P1 with the SPS configuration index of 0, that is, the HARQ process number (HARQ process number) = 0 in PDCCH 1 activates the SPS PDSCH configuration with the SPS-configuration index (sps-ConfigIndex) = 0.

[0070] Similarly, in Figure 2b In CC1 shown, the network device can activate the first set of SPS configurations through PDCCH 2. For example, PDCCH 2 can carry DCI 2, and the HARQ process number in DCI 2 is 1 to activate the SPS PDSCH on period P2 with SPS configuration index 1, that is, HARQ process number=1 in PDCCH 2 activates the SPS PDSCH configuration with sps-ConfigIndex=1.

[0071] In addition, Figure 2b In the shown CC1, the SPS PDSCH configuration of sps-ConfigIndex=2 is not activated.

[0072] The following will introduce the scheduling activation (Scheduling activation) and scheduling deactivation / release (Scheduling release) through PDCCH. In the following example, the terminal device is UE and the network device is a base station.

[0073] Generally, if the UE detects that a DCI satisfies the following conditions, it is necessary to determine whether the DCI is used to activate downlink SPS scheduling or to deactivate / release SPS scheduling based on the content of the DCI:

[0074] - The cyclic redundancy check (CRC) of this DCI is scrambled by the configured scheduling radio network temporary identifier (CS-RNTI), and

[0075] – The new data indicator (NDI) field information bit is set to 0, and

[0076] – If a downlink feedback information (DFI) field is present, the field information is set to 0, and

[0077] – If the PDSCH-to-HARQ_feedback timing indicator field information exists in the DCI and the value of this indicator field cannot be an invalid value (according to the configuration of dl-DataToUL-ACK-r16);

[0078] When the DCI detected by the UE meets the above conditions, it is necessary to further check the validity of the DCI field information. In short, it is to check whether the field information predefined by the protocol is set to a special value. If these field information are set to special values, the UE considers that the DCI meets the validity, that is, it is considered to be a DL SPS activation PDCCH (also called SPS activation DCI), and periodically receives PDSCH according to the DCI indication information; or it considers that the DCI is a DL SPS release PDCCH, the UE stops periodically receiving PDSCH, and feeds back HARQ ACK for this DCI.

[0079] Exemplarily, the DCI validity check needs to be performed for different DCI formats, activation / deactivation, one set of SPS PDSCH configuration or multiple sets of SPS PDSCH configurations in different scenarios. The special domain values ​​are different in different scenarios. If the base station configures the UE with a single set of SPS PDSCH, the UE receives a DCI. If the partial domain information of the DCI is set according to Table 1, that is, the special domain and its value for the validity of a single set of DLSPS scheduling activation PDCCH, the UE considers that the validity of the DCI is obtained (validation of DCI format).

[0080] Table 1

[0081]

[0082] If the base station configures the UE with more than one set of SPS PDSCH, the UE receives a DCI, and the HARQ process number field information in the DCI is equal to the value of the RRC parameter sps-ConfigIndex, indicating the activation of the SPS PDSCH configuration corresponding to sps-ConfigIndex. If the redundancy version (RV) field information of the DCI is set according to Table 2, that is, when the UE is configured with multiple sets of DL SPS configurations, a special field for activating PDCCH validity for a single set of DL SPS scheduling, the UE considers that the validity of the DCI is obtained.

[0083] Table 2

[0084]

[0085] In addition, in the above Figure 2a and Figure 2b In the relevant implementation process of the downlink resources shown, the network device can configure periodic resources for the terminal device through configuration information (such as an RRC message), and activate the periodic resources through an activation signaling (such as DCI) to save the signaling overhead of the scheduling process. In addition, the network device can send new configuration information (such as another RRC message) and activate the new configuration information through new activation signaling to update the periodic resources.

[0086] However, after activating the periodic downlink resources, the network device needs to use new configuration information and new activation signaling to implement the resource update process, which leads to an increase in signaling overhead and an increase in communication delay. Similarly, when the network device activates the periodic uplink resources, there will be similar problems such as an increase in signaling overhead and an increase in communication delay.

[0087] In a possible solution, the above problem can be solved by reactivating (or reinitializing) the resource. Figure 2cIn the process shown, after the network device sends the period-related information of SPS (for example, the period-related information is carried in the RRC message), the network device can indicate to the terminal device through DCI 1 to activate period 1, and enable the terminal device to receive downlink data on periodic resources such as SPS PDSCH1, SPS PDSCH2, SPS PDSCH3 corresponding to period 1; thereafter, the network device can indicate to the terminal device through DCI 2 to activate period 2, and enable the terminal device to receive downlink data on periodic resources such as SPS PDSCH1, SPS PDSCH2, SPS PDSCH3 corresponding to period 2. In this way, the terminal device can reuse the SPS configuration corresponding to the same period-related information (that is, the period-related information of the resources corresponding to period 1 is the same as the period-related information of the resources corresponding to period 2), and after DCI 1 activates the SPS configuration, the SPS configuration is reactivated (or reinitialized) through DCI 2 to save the overhead of the configuration of the period-related information of SPS and reduce the communication delay.

[0088] From the above implementation process, we can see that Figure 2c In the example, after the terminal device determines to receive the SPS PDSCH corresponding to cycle 1 based on the indication of DCI 1, the network device can indicate the activation of cycle 2 through DCI 2. However, for the terminal device, since there is a certain processing delay in the process of the terminal device processing DCI 2 and determining the SPS PDSCH corresponding to cycle 2 based on the processing result, the terminal device may not have time to process DCI 2 before it needs to receive the SPS PDSCH corresponding to cycle 1, which may cause confusion in the behavior of the terminal device (for example, the PDSCH reception of cycle 2 activated by DCI 2 is lost).

[0089] In summary, in the process of implementing the reactivation (or reinitialization) of periodic resources, after the network device activates the periodic resources through an activation signaling, the network device can update the periodic resources through another activation signaling. However, since there is a certain processing delay in the terminal device processing the other activation signaling, this will cause the terminal device to successfully process the other activation signaling. Before, it is possible that the activation signaling to activate the periodic resource has already started transmission, resulting in transmission failure. Therefore, how to improve the transmission success rate of periodic resources, and then improve the transmission robustness of periodic resources, has not yet been solved.

[0090] In order to solve the above problems, the present application provides a communication method and related equipment for reinitializing periodic resources through resource activation information (i.e., second information) to implement a resource update process, thereby reducing signaling overhead and reducing communication delay. In addition, the terminal device can improve the transmission success rate of the terminal device in the periodic resource, thereby improving the transmission robustness of the periodic resource. The following will be described in detail with reference to the accompanying drawings.

[0091] See also Figure 3 , is a schematic diagram of an implementation of the communication method provided in this application, and the method includes the following steps.

[0092] It should be noted that Figure 3 In the example, the terminal device and the network device are used as the execution subjects of the interaction diagram to illustrate the method, but the present application does not limit the execution subjects of the interaction diagram. Figure 3 In the corresponding implementation method, the implementation process of step S301-step S303 can be executed by the terminal device, or by a chip, chip system, or processor that supports the terminal device to implement the method, or by a logic module or software that can implement all or part of the terminal device functions. Figure 3 In the corresponding implementation method, the implementation process of step S301-step S303 can be executed by the network device, or by a chip, chip system, or processor that supports the network device to implement the method, or by a logic module or software that can implement all or part of the network device functions.

[0093] Similarly, later Figure 5 / Figure 7 / Fig. 9 In the method shown, each step can be executed by a terminal device and / or a network device, or by a chip, a chip system, or a processor in the terminal device and / or the network device, or by a logic module or software that can implement the terminal device and / or the network device.

[0094] S301. A network device sends first information, and correspondingly, a terminal device receives the first information, wherein the first information is used to activate a first periodic resource, and the first periodic resource includes a first resource.

[0095] S302. The network device sends second information, and correspondingly, the terminal device receives the second information, which is carried in a second resource. The second information is used to activate a second periodic resource, and the second periodic resource is obtained by reinitializing the first periodic resource.

[0096] It should be understood that the first information received by the terminal device in step S301 is used to activate the first periodic resource, and the first periodic resource can be determined by the periodic information and the first resource information, that is, the first information can include the first resource information. Correspondingly, the second information received by the terminal device in step S302 is used to activate the second periodic resource, and the second periodic resource can be determined by the periodic information and the second resource information, that is, the second information can include the second resource information.

[0097] Exemplarily, the periodic information may be included in an RRC message, that is, the periodic information may be configured through an RRC message, for example, the periodicity information may be configured through the periodicity field / information element and the periodicityExt-r16 field / information element described above. In other words, the periodic information corresponding to the first periodic resource activated by the first information may be the same as the periodic information corresponding to the second periodic resource activated by the second information. Accordingly, the first information received by the terminal device in step S301 may include an index of the first periodic resource, and the second information received by the terminal device in step S302 includes an index of the second periodic resource, and the index of the first periodic resource is the same as the index of the second periodic resource. Specifically, the terminal device may receive one or more sets of periodic resource periodic information (for example, the periodic information is carried in an RRC message), and accordingly, the index of the first periodic resource contained in the first information may be the same as the index of the second periodic resource contained in the second information, so that the network device may reinitialize the same periodic resource through the resource activation information (i.e., the first information and the second information) in sequence to implement the resource update process.

[0098] Exemplarily, the information (i.e., the first information and / or the second information) containing resource information (including the first resource information and / or the second resource information) may be DCI. The resource information may be used to indicate (or to determine) at least one of the following: time domain resources, frequency domain resources, HARQ ACK feedback resources, number of antenna ports, rate matching indication, interleaving information, modulation and coding mode. In other words, the terminal device may determine (or update or reinitialize) at least one of the above based on the resource information.

[0099] Optionally, the time domain resources in the above resource information may be indicated by a time domain resource assignment indication field in DCI.

[0100] Optionally, the frequency domain resources in the above resource information may be indicated by a frequency domain resource assignment indication field in DCI.

[0101] Optionally, the modulation and coding scheme in the above resource information may be indicated by a modulation and coding scheme indication field in DCI.

[0102] Optionally, the HARQ ACK feedback resource in the above resource information may be indicated by a PDSCH-to-HARQ feedback timing indicator field (PDSCH-to-HARQ_feedback timing indicator) in the DCI.

[0103] It should be understood that the second periodic resource is obtained by reinitializing the first periodic resource, and it can be understood that the second periodic resource is obtained by updating / re-updating the first periodic resource. That is, the first periodic resource activated by the first information and the second periodic resource activated by the second information may be different, for example, at least one of the time domain resources, frequency domain resources, HARQACK feedback resources, number of antenna ports, rate matching indication, interleaving information, and modulation and coding methods is different.

[0104] S303. When the timing relationship is satisfied, the network device sends the third downlink data. Correspondingly, when the timing relationship is satisfied, the terminal device receives the third downlink data. The first resource is the closest resource after the second resource in the first periodic resource, and the third resource is the earliest resource in the time domain in the second periodic resource.

[0105] Specifically, satisfying the timing relationship may include any of the following:

[0106] Satisfies the timing relationship 1. The time interval between the start symbol of the first resource and the end symbol of the second resource is greater than or equal to N time units.

[0107] In one implementation example, Figure 4a As shown, the first resource can be the nearest resource located after the second resource in the periodically transmitted SPS PDSCH. If the time interval between the start symbol of the first resource and the end symbol of the second resource is greater than or equal to N time units (taking "equal" as an example in the figure), then the network device sends the third downlink data in step S303, and correspondingly, the terminal device receives the third downlink data in step S303.

[0108] Satisfies timing relationship 2. The time interval between the start symbol of the time slot where the first resource is located and the end symbol of the second resource is greater than or equal to N time units.

[0109] In one implementation example, Figure 4bAs shown, the first resource can be the nearest resource located after the second resource in the periodically transmitted SPS PDSCH. If the time interval between the start symbol of the time slot where the first resource is located (slot k+2 in the figure) and the end symbol of the second resource is greater than or equal to N time units ("equal to" is used as an example in the figure), then the network device sends the third downlink data in step S303, and correspondingly, the terminal device receives the third downlink data in step S303.

[0110] In the present application, the time unit may be a symbol (eg, OFDM symbol), a time slot, a subframe, a frame, etc., which is not limited here. For example, N time units may be 14 symbols, 28 symbols, 1 time slot, 2 time slots, etc.

[0111] Optionally, for timing relationship 1, the branch of "equal to" can be understood differently, for example, when the time interval between the start symbol of the first resource and the end symbol of the second resource is equal to N time units, the terminal device and the network device determine that timing relationship 1 is not satisfied. Similarly, for timing relationship 2, the branch of "equal to" can be understood differently, for example, when the time interval between the start symbol of the internship where the first resource is located and the end symbol of the second resource is equal to N time units, the terminal device and the network device determine that timing relationship 2 is not satisfied.

[0112] Optionally, for satisfying timing relationship 1, it can be replaced by: the time interval between the start symbol of the first resource and the start symbol of the second resource is greater than or equal to N time units, or, the time interval between the end symbol of the first resource and the start symbol of the second resource is greater than or equal to N time units, or, the time interval between the end symbol of the first resource and the end symbol of the second resource is greater than or equal to N time units.

[0113] Optionally, for satisfying timing relationship 2, it can be replaced by: the time interval between the start symbol of the time slot where the first resource is located and the start symbol of the second resource is greater than or equal to N time units, or, the time interval between the end symbol of the time slot where the first resource is located and the start symbol of the second resource is greater than or equal to N time units, or, the time interval between the end symbol of the time slot where the first resource is located and the end symbol of the second resource is greater than or equal to N time units.

[0114] It should be noted that the first resource is the closest resource after the second resource in the first periodic resource, which can be understood as the first resource being the closest resource after the start symbol (or end symbol, or start symbol of the time slot, or end symbol of the time slot) of the second resource in the first periodic resource. In addition, the start symbol of the second resource is not later than the end symbol of the first resource, that is, the start symbol of the second resource is the same as the end symbol of the first resource, or the start symbol of the second resource is located before the end symbol of the first resource in the time domain.

[0115] It should be noted that the third resource is the earliest resource in the time domain among the second periodic resources. It can be understood that the third resource is the first resource among the second periodic resources.

[0116] In a possible implementation, in step S303, after the terminal device receives the third downlink data on the third resource, the terminal device may also send feedback information of the third downlink data to indicate whether the third downlink data is successfully received through the feedback information. For example, the feedback information may be HARQ ACK information, and the HARQ ACK information may include a positive acknowledgement (ACK) indicating successful reception, or a negative acknowledgement (NACK) indicating a failed reception.

[0117] Optionally, the feedback information of the third downlink data may be feedback information sent independently, or may be sent in a codebook composed of other information or HARQ information corresponding to other data, which is not limited here.

[0118] In one possible implementation, Figure 3 The technical solution shown, the method also includes: the terminal device determines not to receive the first downlink data on the first resource. Specifically, under the condition that the terminal device determines that the timing relationship is satisfied, since the time interval between the first resource and the second resource is relatively long, the terminal device can process the second information for activating the second periodic resource based on the N time units and determine the second periodic resource, that is, the terminal device has sufficient time to perform the resource update process. Accordingly, the terminal device can subsequently receive downlink data on the second periodic resource, that is, the terminal device can determine not to receive the first downlink data on the first resource, and accordingly, the terminal device determines not to send feedback information (including ACK or NACK) corresponding to the first downlink data. In other words, the terminal device determines not to receive, process and feedback the first downlink data to avoid unnecessary overhead.

[0119] based on Figure 3In the technical solution shown, after the terminal device receives the first information for activating the first periodic resource in step S301, in step S302, the terminal device receives the second information for activating the second periodic resource on the second resource, and the second periodic resource is obtained by reinitializing the first periodic resource. Thereafter, under the condition that the timing relationship is satisfied, the terminal device receives the third downlink data on the third resource with the earliest time domain in the second periodic resource in step S303. Thus, in the process of updating the periodic resources, the terminal device can reinitialize the periodic resources based on the activation information of the resources (i.e., the second information) to implement the resource update process, thereby reducing the signaling overhead and reducing the communication delay.

[0120] In addition, according to the traditional activation / deactivation process (such as the above Figure 2a / Figure 2b / Figure 2c And the activation / deactivation involved in the related implementation process), after a periodic configuration is activated, the terminal device starts periodic reception. The network device can send a PDCCH for releasing periodic resources to instruct the terminal device to release information related to periodic reception and stop periodic reception of PDSCH. This PDCCH is only used to indicate the release of periodic resources. The terminal device needs to send HARQ ACK information to the network device for this release PDCCH and stop periodic reception. In the above implementation process, in step S302, the network device can send second information for the periodic configuration corresponding to the first periodic resource activated by the first information in step S301, that is, the second information can be understood as skipping the two processes of sending the release PDCCH and the terminal device feeding back HARQ ACK information for the release PDCCH, which can further reduce signaling overhead and reduce communication delay.

[0121] In addition, under the condition of satisfying the timing relationship, since the time interval between the first resource and the second resource is relatively long, the terminal device can process the second information for activating the second periodic resource based on the N time units and determine the second periodic resource, that is, the terminal device has sufficient time to execute the resource update process, which can improve the transmission success rate of the terminal device in the periodic resources, and thereby improve the transmission robustness of the periodic resources.

[0122] It should be noted that the periodic resources (including the first periodic resources and the second periodic resources) can be downlink resources or uplink resources. For example, taking the periodic resources as downlink resources as an example, the terminal device can receive downlink data based on the periodic resources (for example, receiving the first downlink data, the third downlink data, etc. on the PDSCH). Similarly, in the case where the periodic resources are uplink resources, the terminal device can send uplink data based on the periodic resources, for example, sending uplink data on a physical uplink shared uplink channel (PUSCH), etc. Figure 3 / Figure 5 / Figure 7 / Fig. 9 In the method shown, the periodic resource is used as the downlink resource to implement the downlink data transmission process as an example. Correspondingly, the downlink resources involved in the method can also be replaced with uplink resources, that is, the terminal device can implement the uplink data transmission process based on this method.

[0123] exist Figure 3 In the technical solution shown, the corresponding implementation process of the terminal device and the network device is given when the timing relationship is met. In the actual application of the solution, there may be a situation where the timing relationship is not met. Accordingly, the terminal device and the network device can be implemented as follows Figure 5 / Figure 7 / Fig. 9 The following is a detailed introduction.

[0124] See also Figure 5 , is another schematic diagram of the communication method provided in the present application, and the method includes the following steps.

[0125] S501. A network device sends first information, and correspondingly, a terminal device receives the first information, wherein the first information is used to activate a first periodic resource, and the first periodic resource includes a first resource.

[0126] S502. The network device sends second information, and correspondingly, the terminal device receives the second information, the second information being carried in a second resource, wherein the second information is used to activate a second periodic resource, the second periodic resource being obtained by reinitializing the first periodic resource.

[0127] It should be noted that the implementation process of step S501 and step S502 can refer to the description of step S301 and step S302 above.

[0128] S503. When the timing relationship is not satisfied, the network device sends the third downlink data and sends the first downlink data. Correspondingly, when the timing relationship is not satisfied, the terminal device receives the third downlink data on the third resource and receives the first downlink data on the first resource. The first resource is the closest resource after the second resource in the first periodic resource, and the third resource is the earliest resource in the time domain in the second periodic resource.

[0129] Specifically, failure to satisfy the timing relationship may include any of the following:

[0130] The timing relationship 1 is not satisfied. The time interval between the start symbol of the first resource and the end symbol of the second resource is less than N time units.

[0131] The timing relationship 2 is not satisfied. The time interval between the start symbol of the time slot where the first resource is located and the end symbol of the second resource is greater than or equal to N time units.

[0132] It should be noted that the implementation process of "not meeting the timing relationship" can refer to the previous article Figure 4a and Figure 4b Description of the implementation example corresponding to "Satisfying the timing relationship" in .

[0133] Optionally, for the situation that timing relationship 1 is not satisfied, it can be replaced by: the time interval between the start symbol of the first resource and the start symbol of the second resource is less than N time units, or the time interval between the end symbol of the first resource and the start symbol of the second resource is less than N time units, or the time interval between the end symbol of the first resource and the end symbol of the second resource is less than N time units.

[0134] Optionally, for the situation that timing relationship 2 is not satisfied, it can be replaced by: the time interval between the start symbol of the time slot where the first resource is located and the start symbol of the second resource is less than N time units, or the time interval between the end symbol of the time slot where the first resource is located and the start symbol of the second resource is less than N time units, or the time interval between the end symbol of the time slot where the first resource is located and the end symbol of the second resource is less than N time units.

[0135] It should be noted that in step S303, the first resource and the third resource do not overlap in the time domain, or the first resource and the third resource are staggered in the time domain, or the first resource and the second resource are located in different time units (eg, time slots).

[0136] For example, Figure 6 As shown, the first resource and the third resource are located in different time slots and do not satisfy the timing relationship 1 as an example. Figure 6In the embodiment, the first periodic resource and the second periodic resource have the same period (both are k1 time slots), wherein the first periodic resource may include SPS PDSCH1-1 and SPS PDSCH1-2, and the second periodic resource may include SPS PDSCH2-1 and SPS PDSCH2-2. Moreover, SPS PDSCH1-1 is the closest resource after the second resource in the first periodic resource, for which SPS PDSCH1-1 is the first resource; SPS PDSCH2-1 is the earliest resource in the time domain in the second periodic resource, for which SPS PDSCH2-1 is the third resource. In step S503, the terminal device may receive the first downlink data in the first resource and receive the third downlink data in the third resource.

[0137] Through the above implementation process, the first downlink data carried by the first resource and the third resource (for example Figure 6 The reception of the third downlink data carried by SPS PDSCH1-1 and SPS PDSCH2-1 (which are respectively located in slot k and slot k+1) may not interfere with each other, thereby improving the reception success rate of the first downlink data and the third downlink data.

[0138] In one possible implementation, Figure 5 In the technical solution shown, the method may also include: when the terminal device determines that the condition of the timing relationship is not satisfied, it determines not to send feedback information for the first downlink data. Specifically, when the terminal device determines that the condition of the timing relationship is not satisfied, the terminal device may not be able to terminate the data reception on the first resource due to the short time interval between the first resource and the second resource. However, the terminal device can obtain a second periodic resource different from the first periodic resource based on the second information, and the terminal device can subsequently transmit data on the second periodic resource. For this reason, after the terminal device receives the first downlink data on the first resource, the terminal device may not decode the first downlink data, and accordingly, the terminal device may not send feedback information for the first downlink data to save unnecessary overhead.

[0139] based on Figure 5 According to the technical solution shown, when the terminal device determines that the timing relationship is not met, the terminal device may not be able to terminate the data reception on the first resource due to the short time interval between the first resource and the second resource. For this reason, the terminal device can receive the third downlink data on the third resource and can receive the first downlink data on the first resource, thereby avoiding missing the reception of downlink data.

[0140] See also Figure 7 , is another schematic diagram of the communication method provided in the present application, and the method includes the following steps.

[0141] S701. A network device sends first information, and correspondingly, a terminal device receives the first information, wherein the first information is used to activate a first periodic resource, and the first periodic resource includes a first resource.

[0142] S702. The network device sends second information, and correspondingly, the terminal device receives the second information, which is carried in a second resource. The second information is used to activate a second periodic resource, and the second periodic resource is obtained by reinitializing the first periodic resource.

[0143] It should be noted that the implementation process of step S501 and step S502 can refer to the description of step S301 and step S302 above.

[0144] S703. When the timing relationship is not satisfied, the terminal device sends feedback information, and correspondingly, the network device receives the feedback information, and the feedback information is used to indicate successful reception of the second information.

[0145] It should be noted that the implementation process of "not satisfying the timing relationship" can refer to the previous description.

[0146] Optionally, in Figure 7 In the implementation process shown, the method also includes: the terminal device determines not to receive the third downlink data on the third resource, and determines not to receive the first downlink data on the first resource. Alternatively, the terminal device does not expect to receive or decode the first data on the first resource, and the terminal device does not expect to receive or decode the third data on the third resource.

[0147] It should be noted that in Figure 7 In the implementation process shown, the first resource and the third resource partially overlap or completely overlap in the time domain, or at least one time unit of the first resource and at least one time unit of the third resource are the same time unit, or the first resource and the second resource are located in the same time unit (e.g., time slot). The first resource is the closest resource after the second resource in the first periodic resource, and the third resource is the earliest resource in the time domain in the second periodic resource.

[0148] For example, Figure 8 As shown, the first resource and the third resource are located in the same time slot and do not satisfy the timing relationship 1 as an example. Figure 8In the embodiment, the first periodic resource and the second periodic resource have the same period (both are k1 time slots), wherein the first periodic resource may include SPS PDSCH1-1 and SPS PDSCH1-2, and the second periodic resource may include SPS PDSCH2-1 and SPS PDSCH2-2. Moreover, SPS PDSCH1-1 is the closest resource after the second resource in the first periodic resource, for which SPS PDSCH1-1 is the first resource; SPS PDSCH2-1 is the earliest resource in the time domain in the second periodic resource, for which SPS PDSCH2-1 is the third resource. In step S703, the terminal device feeds back information, and the feedback information is used to indicate the successful reception of the second information.

[0149] Through the above implementation process, it can be known that since the first downlink data carried by the first resource and the third downlink data carried by the third resource (for example Figure 8 The reception of SPS PDSCH1-1 and SPS PDSCH2-1 (both located in slot k+1) is likely to interfere with each other. For this reason, the terminal device may determine not to receive the first downlink data and the third downlink data. Accordingly, the terminal device determines not to send feedback information corresponding to the first downlink data and the feedback information corresponding to the third downlink data to avoid unnecessary processing overhead.

[0150] based on Figure 7 In the technical solution shown, when the terminal device determines that the timing relationship is not satisfied, the terminal device may not be able to process the second information in time and update the first periodic resource to the second periodic resource due to the short time interval between the first resource and the second resource. To this end, the terminal device can send feedback information indicating successful reception of the second information, and the terminal device does not need to send feedback information corresponding to the first downlink data and feedback information corresponding to the third downlink data, so that the network device knows that the terminal device has successfully received the second information, and the network device knows that the terminal device has not received or processed the first downlink data and the third downlink data.

[0151] Optionally, after the terminal device sends feedback information indicating successful reception of the second information in step S703, the terminal device may update the first periodic resource to a second periodic resource, and may subsequently receive downlink data on the second periodic resource.

[0152] See also Fig. 9 , is another schematic diagram of the communication method provided in the present application, and the method includes the following steps.

[0153] S901. A network device sends first information, and correspondingly, a terminal device receives the first information, wherein the first information is used to activate a first periodic resource, and the first periodic resource includes a first resource.

[0154] S902. The network device sends second information, and correspondingly, the terminal device receives the second information, which is carried in a second resource. The second information is used to activate a second periodic resource, and the second periodic resource is obtained by reinitializing the first periodic resource.

[0155] It should be noted that the implementation process of step S501 and step S502 can refer to the description of step S301 and step S302 above.

[0156] S903. When the timing relationship is not satisfied, the terminal device discards (or ignores) the second information (or the terminal device determines that the second periodic resource activated by the second information is not effective).

[0157] It should be noted that the implementation process of "not satisfying the timing relationship" can refer to the previous description.

[0158] based on Fig. 9 In the technical solution shown, the terminal device determines that the timing relationship is not met, and due to the short time interval between the first resource and the second resource, the terminal device may not be able to process the second information in time and update the first periodic resource to the second periodic resource. For this reason, the terminal device may think that the network device is configured incorrectly, or the terminal device determines that the second information sent by the network device is an error message. Accordingly, the terminal device can perform at least one of the following: discard the second information, do not receive or decode the first downlink data, do not receive or decode the third downlink data, and do not update the first periodic resource to the second periodic resource to avoid unnecessary processing overhead. In other words, when the network device wants to send the second information to the terminal device, the above-mentioned timing relationship should be met, that is, the network device sends the second information as early as possible before the first resource, otherwise the terminal device will think that the second information is an error message sent by the network device. It can also be understood that under the condition that the above-mentioned timing relationship is not met, the terminal device does not expect to receive the second information on the second resource. Or, under the condition that the above-mentioned timing relationship is met, the terminal device expects to receive the second information on the second resource.

[0159] Optionally, when the terminal device discards the second information in step S903, after the terminal device determines not to receive or decode the third downlink data (that is, the terminal device does not receive downlink data on the first resource of the second periodic resource), the terminal device may receive downlink data on other resources of the second periodic resource, or may not receive downlink data on other resources of the second periodic resource, which is not limited here.

[0160] See also Fig.10 , the embodiment of the present application provides a communication device 1000, which can implement the functions of the communication device in the above method embodiment (the communication device is a terminal device or a network device), and thus can also achieve the beneficial effects of the above method embodiment. In the embodiment of the present application, the communication device 1000 can be a communication device, or it can be an integrated circuit or component inside the communication device, such as a chip. The following embodiments are described by taking the communication device 1000 as a communication device as an example.

[0161] In one possible implementation, when the device 1000 is used to execute the method executed by the terminal device in any of the foregoing embodiments, the device 1000 includes a processing unit 1001 and a transceiver unit 1002; the transceiver unit 1002 is used to receive first information, and the first information is used to activate a first periodic resource, and the first periodic resource includes a first resource; the transceiver unit 1002 is also used to receive second information on a second resource, and the second information is used to activate a second periodic resource, and the second periodic resource is obtained by reinitializing the first periodic resource.

[0162] When the device 1000 is used to perform the aforementioned Figure 3 And when the method is executed by the terminal device in the related embodiments, under the condition that the processing unit 1001 determines that the time interval between the start symbol of the first resource (or the start symbol of the time slot where the first resource is located) and the end symbol of the second resource is greater than or equal to N time units, the transceiver unit 1002 is also used to receive third downlink data or send third uplink data on the third resource, where N is a positive integer; wherein the first resource is the nearest resource after the second resource in the first periodic resource, and the third resource is the earliest resource in the time domain in the second periodic resource.

[0163] When the device 1000 is used to perform the aforementioned Figure 5 And the method executed by the terminal device in the related embodiments, under the condition that the processing unit 1001 determines that the time interval between the start symbol of the first resource (or the start symbol of the time slot where the first resource is located) and the end symbol of the second resource is less than N time units, the transceiver unit 1002 is also used to receive the third downlink data or send the third uplink data on the third resource, and receive the first downlink data or send the first uplink data on the first resource.

[0164] When the device 1000 is used to perform the aforementioned Figure 7And when the method is executed by the terminal device in the related embodiments, under the condition that the processing unit 1001 determines that the time interval between the starting symbol of the first resource (or the starting symbol of the time slot where the first resource is located) and the end symbol of the second resource is less than N time units, the transceiver unit 1002 is also used to send feedback information, and the feedback information is used to indicate successful reception of the second information, where N is a positive integer.

[0165] When the device 1000 is used to perform the aforementioned Fig. 9 And when the method is executed by the terminal device in the related embodiments, under the condition that the processing unit 1001 determines that the time interval between the starting symbol of the first resource (or the starting symbol of the time slot where the first resource is located) and the end symbol of the second resource is less than N time units, the processing unit is used to discard the second information.

[0166] In one possible implementation, when the device 1000 is used to execute the method executed by the network device in any of the aforementioned embodiments, the device 1000 includes a processing unit 1001 and a transceiver unit 1002; the transceiver unit 1002 is used to send first information, and the first information is used to activate a first periodic resource, and the first periodic resource includes a first resource; the transceiver unit 1002 is also used to send second information on a second resource, and the second information is used to activate a second periodic resource, and the second periodic resource is obtained by reinitializing the first periodic resource.

[0167] When the device 1000 is used to perform the aforementioned Figure 3 And the method executed by the network device in the related embodiments, under the condition that the processing unit 1001 determines that the time interval between the start symbol of the first resource (or the start symbol of the time slot where the first resource is located) and the end symbol of the second resource is greater than or equal to N time units, the transceiver unit 1002 is also used to send third downlink data or receive third uplink data on the third resource, N is a positive integer; wherein the first resource is the nearest resource after the second resource in the first periodic resource, and the third resource is the earliest resource in the time domain in the second periodic resource.

[0168] When the device 1000 is used to perform the aforementioned Figure 5 And the method executed by the network device in the related embodiments, under the condition that the processing unit 1001 determines that the time interval between the start symbol of the first resource (or the start symbol of the time slot where the first resource is located) and the end symbol of the second resource is less than N time units, the transceiver unit 1002 is also used to send the third downlink data or receive the third uplink data on the third resource, and receive the first downlink data or send the first uplink data on the first resource.

[0169] When the device 1000 is used to perform the aforementioned Figure 7 And the method executed by the network device in the related embodiments, under the condition that the processing unit 1001 determines that the time interval between the start symbol of the first resource (or the start symbol of the time slot where the first resource is located) and the end symbol of the second resource is less than N time units, the transceiver unit 1002 is also used to receive feedback information, and the feedback information is used to indicate the successful reception of the second information, and N is a positive integer.

[0170] It should be noted that the information execution process and other contents of the units of the above-mentioned communication device 1000 can be specifically referred to the description in the method embodiment shown in the above-mentioned application, and will not be repeated here.

[0171] See also Fig.11 , is another schematic structural diagram of the communication device 1100 provided in the present application, the communication device 1100 includes a logic circuit 1101 and an input / output interface 1102. The communication device 1100 may be a chip or an integrated circuit. Fig.10 The transceiver unit 1002 shown may be a communication interface, which may be Fig.11 The input / output interface 1102 in the communication interface may include an input interface and an output interface. Alternatively, the communication interface may also be a transceiver circuit, which may include an input interface circuit and an output interface circuit.

[0172] Optionally, the input-output interface 1102 is used to receive first information, the first information is used to activate a first periodic resource, and the first periodic resource includes a first resource; the input-output interface 1102 is also used to receive second information on a second resource, the second information is used to activate a second periodic resource, and the second periodic resource is obtained by reinitializing the first periodic resource; the logic circuit 1101 is used to determine whether the time interval between the starting symbol of the first resource (or the starting symbol of the time slot where the first resource is located) and the ending symbol of the second resource is greater than or equal to N time units.

[0173] Optionally, the logic circuit 1101 is used to send first information, the first information is used to activate a first periodic resource, and the first periodic resource includes the first resource; the input-output interface 1102 is also used to send second information on the second resource, the second information is used to activate a second periodic resource, and the second periodic resource is obtained by reinitializing the first periodic resource; the logic circuit 1101 is used to determine whether the time interval between the starting symbol of the first resource (or the starting symbol of the time slot where the first resource is located) and the ending symbol of the second resource is greater than or equal to N time units.

[0174] Among them, the logic circuit 1101 and the input and output interface 1102 can also execute other steps executed by the terminal device or the network device in any embodiment and achieve corresponding beneficial effects, which will not be repeated here.

[0175] In one possible implementation, Fig.10 The processing unit 1001 shown can be Fig.11 The logic circuit 1101 in.

[0176] Optionally, the logic circuit 1101 may be a processing device, and the functions of the processing device may be partially or completely implemented by software. The functions of the processing device may be partially or completely implemented by software.

[0177] Optionally, the processing device may include a memory and a processor, wherein the memory is used to store a computer program, and the processor reads and executes the computer program stored in the memory to perform corresponding processing and / or steps in any one of the method embodiments.

[0178] Alternatively, the processing device may include only a processor. A memory for storing a computer program is located outside the processing device, and the processor is connected to the memory via a circuit / wire to read and execute the computer program stored in the memory. The memory and the processor may be integrated together, or may be physically independent of each other.

[0179] Optionally, the processing device may be one or more chips, or one or more processors.

[0180] It is understandable that the processor in the embodiments of the present application may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), network processors (NP), field programmable gate arrays (FPGA), programmable logic devices (PLD), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0181] An embodiment of the present application also provides a computer-readable storage medium, which is used to store one or more computer-executable instructions. When the computer-executable instructions are executed by a processor, the processor executes the method described in the possible implementation methods of the terminal device or network device in the above embodiments.

[0182] An embodiment of the present application also provides a computer program product (or computer program). When the computer program product is executed by the processor, the processor executes the method of the possible implementation mode of the above-mentioned terminal device or network device.

[0183] The embodiment of the present application also provides a chip system, which includes at least one processor for supporting a communication device to implement the functions involved in the possible implementation methods of the above-mentioned communication device. Optionally, the chip system also includes an interface circuit, which provides program instructions and / or data for the at least one processor. In one possible design, the chip system may also include a memory, which is used to store the necessary program instructions and data for the communication device. The chip system can be composed of chips, or it can include chips and other discrete devices, wherein the communication device can specifically be a terminal device or a network device in the aforementioned method embodiment.

[0184] An embodiment of the present application also provides a communication system, which includes the terminal device and the network device in any of the above embodiments.

[0185] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0186] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0187] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0188] When the above-mentioned communication device is a chip applied to a terminal, the terminal chip implements the functions of the terminal in the above-mentioned method embodiment. The terminal chip receives information from the base station, which can be understood as the information is first received by other modules in the terminal (such as a radio frequency module or an antenna), and then sent to the terminal chip by these modules. The terminal chip sends information to the base station, which can be understood as the information is first sent to other modules in the terminal (such as a radio frequency module or an antenna), and then sent to the base station by these modules.

[0189] When the above-mentioned communication device is a chip applied to a base station, the base station chip implements the function of the base station in the above-mentioned method embodiment. The base station chip receives information from the terminal, which can be understood as the information is first received by other modules in the base station (such as a radio frequency module or an antenna), and then sent to the base station chip by these modules. The base station chip sends information to the terminal, which can be understood as the information is sent to other modules in the base station (such as a radio frequency module or an antenna), and then sent to the terminal by these modules.

[0190] The method steps in the embodiments of the present application can be implemented in hardware or in software instructions that can be executed by a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, register, hard disk, mobile hard disk, CD-ROM or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. The storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a base station or a terminal. The processor and the storage medium can also be present in a base station or a terminal as discrete components.

[0191] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instruction is loaded and executed on a computer, the process or function described in the embodiment of the present application is executed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device or other programmable device. The computer program or instruction may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program or instruction may be transmitted from one website site, computer, server or data center to another website site, computer, server or data center by wired or wireless means. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server, data center, etc. that integrates one or more available media. The available medium may be a magnetic medium, for example, a floppy disk, a hard disk, a tape; it may also be an optical medium, for example, a digital video disc; it may also be a semiconductor medium, for example, a solid-state hard disk. The computer-readable storage medium may be a volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

[0192] In the various embodiments of the present application, unless otherwise specified or provided for in any logical conflict, the terms and / or descriptions between the different embodiments are consistent and may be referenced to each other, and the technical features in the different embodiments may be combined to form new embodiments according to their inherent logical relationships.

[0193] It is understood that the various numbers involved in the embodiments of the present application are only for the convenience of description and are not used to limit the scope of the embodiments of the present application. The size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic.

Claims

1. A communication method, characterized in that: include: receiving first information, where the first information is used to activate a first periodic resource, where the first periodic resource includes a first resource; receiving second information on a second resource, where the second information is used to activate a second periodic resource, where the second periodic resource is obtained by reinitializing the first periodic resource; Under the condition that the time interval between the start symbol of the first resource and the end symbol of the second resource is greater than or equal to N time units, third downlink data is received on the third resource, where N is a positive integer; wherein the first resource is the nearest resource after the second resource in the first periodic resource, and the third resource is the earliest resource in the time domain in the second periodic resource.

2. The method according to claim 1, characterized in that The method further comprises: Under the condition that the time interval between the start symbol of the first resource and the end symbol of the second resource is less than N time units, the third downlink data is received on the third resource, and the first downlink data is received on the first resource.

3. The method according to claim 2, characterized in that The method further comprises: Under the condition that the time interval between the start symbol of the first resource and the end symbol of the second resource is less than N time units, it is determined not to send feedback information for the first downlink data.

4. The method according to claim 1, characterized in that: The method further comprises: Under the condition that the time interval between the start symbol of the first resource and the end symbol of the second resource is less than N time units, feedback information is sent, where the feedback information is used to indicate successful reception of the second information.

5. The method according to claim 4, characterized in that The method further comprises: Determine not to receive the third downlink data on the third resource, and determine not to receive the first downlink data on the first resource.

6. The method according to claim 1, characterized in that The method further comprises: Under the condition that the time interval between the start symbol of the first resource and the end symbol of the second resource is less than N time units, the second information is discarded.

7. A communication method, characterized in that: include: receiving first information, where the first information is used to activate a first periodic resource, where the first periodic resource includes a first resource; receiving second information on a second resource, where the second information is used to activate a second periodic resource, where the second periodic resource is obtained by reinitializing the first periodic resource, and the second periodic resource includes a third resource; Under the condition that the time interval between the start symbol of the time slot where the first resource is located and the end symbol of the second resource is greater than or equal to N time units, the third downlink data is received on the third resource, where N is a positive integer; wherein the first resource is the nearest resource after the second resource in the first periodic resource, and the third resource is the earliest resource in the time domain in the second periodic resource.

8. The method according to claim 7, characterized in that The method further comprises: Under the condition that the time interval between the start symbol of the time slot where the first resource is located and the end symbol of the second resource is less than N time units, the third downlink data is received on the third resource, and the first downlink data is received on the first resource.

9. The method according to claim 8, characterized in that The method further comprises: Under the condition that the time interval between the start symbol of the time slot where the first resource is located and the end symbol of the second resource is less than N time units, it is determined not to send feedback information for the first downlink data.

10. The method according to claim 7, characterized in that The method further comprises: Under the condition that the time interval between the start symbol of the time slot where the first resource is located and the end symbol of the second resource is less than N time units, feedback information is sent, where the feedback information is used to indicate successful reception of the second information, where N is a positive integer.

11. The method according to claim 10, characterized in that The method further comprises: Under the condition that the time interval between the start symbol of the time slot where the first resource is located and the end symbol of the second resource is less than N time units, it is determined not to receive the third downlink data on the third resource, and it is determined not to receive the first downlink data on the first resource.

12. The method according to claim 7, characterized in that The method further comprises: Under the condition that the time interval between the start symbol of the time slot where the first resource is located and the end symbol of the second resource is less than N time units, the second information is discarded.

13. The method according to claim 1 or 7, characterized in that: The method further comprises: Determine not to receive first downlink data on the first resource.

14. The method according to any one of claims 1 to 13, characterized in that: The first information includes an index of the first periodic resource, and the second information includes an index of the second periodic resource, and the index of the first periodic resource is the same as the index of the second periodic resource.

15. A communication method, characterized in that: include: Sending first information, where the first information is used to activate a first periodic resource, where the first periodic resource includes a first resource; Sending second information on a second resource, where the second information is used to activate a second periodic resource, where the second periodic resource is obtained by reinitializing the first periodic resource; Under the condition that the time interval between the start symbol of the first resource and the end symbol of the second resource is greater than or equal to N time units, the third downlink data is sent on the third resource, where N is a positive integer; wherein the first resource is the nearest resource after the second resource in the first periodic resource, and the third resource is the earliest resource in the time domain in the second periodic resource.

16. The method according to claim 15, characterized in that The method further comprises: Under the condition that the time interval between the start symbol of the first resource and the end symbol of the second resource is less than N time units, the third downlink data is sent on the third resource, and the first downlink data is sent on the first resource.

17. The method according to claim 16, characterized in that The method further comprises: Under the condition that the time interval between the start symbol of the first resource and the end symbol of the second resource is less than N time units, it is determined not to receive feedback information for the first downlink data.

18. The method according to claim 15, characterized in that The method further comprises: Under the condition that the time interval between the start symbol of the first resource and the end symbol of the second resource is less than N time units, feedback information is received, where the feedback information is used to indicate successful reception of the second information, and N is a positive integer.

19. The method according to claim 18, characterized in that The method further comprises: Under the condition that the time interval between the start symbol of the first resource and the end symbol of the second resource is less than N time units, it is determined not to send the third downlink data on the third resource, and it is determined not to send the first downlink data on the first resource.

20. A communication method, characterized in that: include: Sending first information, where the first information is used to activate a first periodic resource, where the first periodic resource includes a first resource; Sending second information on a second resource, where the second information is used to activate a second periodic resource, where the second periodic resource is obtained by reinitializing the first periodic resource, and where the second periodic resource includes a third resource; Under the condition that the time interval between the start symbol of the time slot where the first resource is located and the end symbol of the second resource is greater than or equal to N time units, the third downlink data is sent on the third resource, where N is a positive integer; wherein the first resource is the nearest resource after the second resource in the first periodic resource, and the third resource is the earliest resource in the time domain in the second periodic resource.

21. The method according to claim 20, characterized in that The method further comprises: Under the condition that the time interval between the start symbol of the time slot where the first resource is located and the end symbol of the second resource is less than N time units, the third downlink data is sent on the third resource, and the first downlink data is sent on the first resource.

22. The method according to claim 21, characterized in that The method further comprises: Under the condition that the time interval between the start symbol of the time slot where the first resource is located and the end symbol of the second resource is less than N time units, it is determined not to receive feedback information for the first downlink data.

23. The method according to claim 22, characterized in that The method further comprises: Under the condition that the time interval between the start symbol of the time slot where the first resource is located and the end symbol of the second resource is less than N time units, feedback information is received, where the feedback information is used to indicate successful reception of the second information, and N is a positive integer.

24. The method according to claim 23, characterized in that The method further comprises: Under the condition that the time interval between the start symbol of the time slot where the first resource is located and the end symbol of the second resource is less than N time units, it is determined not to send the third downlink data on the third resource, and it is determined not to send the first downlink data on the first resource.

25. The method according to claim 15 or 24, characterized in that The method further comprises: Determine not to send first downlink data on the first resource.

26. The method according to any one of claims 15 to 25, characterized in that The first information includes an index of the first periodic resource, and the second information includes an index of the second periodic resource, and the index of the first periodic resource is the same as the index of the second periodic resource.

27. A communication device, characterized in that: Comprising means for performing the method as claimed in any one of claims 1 to 26.

28. A communication device, characterized in that: The method comprises at least one processor coupled to a memory; the at least one processor is configured to execute the method according to any one of claims 1 to 26.

29. A readable storage medium, characterized in that: The storage medium stores a computer program or an instruction, and when the computer program or the instruction is executed by the communication device, the method according to any one of claims 1 to 26 is implemented.

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