Communication method and communication device

Abstract

Provided are a communication method and a communication device, the communication method comprising: a second network device receiving a first signal sent by a first terminal device on a first time domain resource and a first frequency domain resource, the first signal is used for indicating that sending or receiving of a second signal between the first network equipment and the first terminal equipment exists on a second time domain resource and a second frequency domain resource; and according to the first signal, determining signal sending or receiving of a second network device and a second terminal device on the second time domain resource and the second frequency domain resource. According to the method provided by the embodiment of the invention, under the condition that the second signal is required to be sent or received, the first signal is firstly sent, so that the network equipment or the terminal equipment with interference can identify the data sending requirement of the second signal, further interference avoidance is carried out, and the communication interference is reduced.

Description

Technical Field

[0001] This application relates to the field of communications, and more particularly, to a communication method and a communication device. Background Art

[0002] At present, air communication services are gradually being widely used. For example, drones provide air logistics services; low-altitude unmanned passenger aircraft can provide air urban commuting services to solve congestion problems. The downlink communication of air communication services needs to provide high spectral efficiency for air devices to meet their entertainment and communication needs; the uplink communication of air communication services needs to provide high throughput to meet the real-time control feedback of air devices.

[0003] However, compared with traditional terrestrial communication, the signal propagation of air communication is mainly line-of-sight propagation (LOS propagation). Line-of-sight propagation is a propagation mode in which a wireless signal propagates directly in a straight line between a transmitting end and a receiving end without obstruction, or rather, it is a propagation mode in which a wireless signal directly propagates from a transmitting point to a receiving point within a distance where the transmitting antenna and the receiving antenna can "see" each other (for example, without an obstruction), that is, within the line of sight. Compared with traditional terrestrial communication, the attenuation of the wireless signal in line-of-sight communication is smaller, and thus the signal strength is greater and the signal coverage range is wider. Therefore, in the above air communication scenario, more interference is caused to the cells serving air terminal devices. The interference between cells will also be enhanced due to line-of-sight transmission. Thus, in the signal transmission scenario of air communication, the uplink and downlink transmissions of air devices will be affected by strong inter-cell interference, and thus the transmission performance of air devices will be affected. Summary of the Invention

[0004] This application provides a communication method and a communication device for reducing communication interference.

[0005] In a first aspect, a communication method is provided. This method can be executed by a second network device, or can be executed by a module (such as a chip or a circuit) in the second network device, or can also be executed by a logical node, a logical module or software that can implement all or part of the functions of the second network device. This application does not make any limitation in this regard.

[0006] The method includes: The second network device receives a first signal sent by a first terminal device on a first time-domain resource and a first frequency-domain resource, where the first signal is used to indicate the sending or receiving of a second signal between a first network device and the first terminal device on a second time-domain resource and a second frequency-domain resource; and according to the first signal, determines the signal sending or receiving between the second network device and a second terminal device on the second time-domain resource and the second frequency-domain resource.

[0007] Optionally, no communication connection is established between the first terminal device and the second network device. In other words, the second network device can receive the first signal sent by the first terminal device through blind detection.

[0008] Therefore, specifically, in the communication method shown in the first aspect, after receiving the first signal, the second network device determines or adjusts the signal transmission or reception between the second network device and the second terminal device on the second time domain resource and the second frequency domain resource according to the second signal transmission or reception between the first network device and the first terminal device existing on the second time domain resource and the second frequency domain resource indicated in the first signal, so as to avoid the signal between the second network device and the second terminal device on the second time domain resource and the second frequency domain resource from interfering with the transmission or reception of the second signal, thereby reducing the interference of inter-cell signal transmission.

[0009] It should be understood that the signal between the second network device and the second terminal device can be any signal, such as a dynamically scheduled signal, or can be a periodically transmitted or received signal.

[0010] Optionally, the first signal can be determined according to the first configuration information and / or resource configuration information. Specifically, the first configuration information can include the cell configuration information and / or location information of the first cell, and the resource configuration information is used to indicate the first resource (such as indicating the time domain resource and the frequency domain resource). The first resource can be used for the first terminal device to send the first signal, and the first resource can also be used for the second network device to receive the first signal.

[0011] Combined with the first aspect, in some implementation manners of the first aspect, the first signal is a reference signal.

[0012] Exemplarily, the cell configuration information of the first cell can include the physical cell identifier of the first cell or the sequence information of the first signal indicated by the first cell. At this time, the first signal can be a cell-level reference signal generated according to the cell configuration information of the first cell. For example, the first signal is a sequence generated based on a root index (such as a Zadoff Chu sequence), and the root index can be equal to the value of the physical cell identifier of the first cell, or the root index can be equal to the sequence value of the first signal indicated by the first cell. For example, the first signal is scrambled by a first scrambling code, and the first scrambling code is generated based on the identifier of the physical cell of the first cell. The location information of the first cell can include global positioning system (GPS) information and other information used to indicate the area or location where the first cell is located. At this time, the first signal can be a region-level reference signal generated according to the location information.

[0013] Optionally, the second signal may be a data signal, such as a Physical Downlink Shared Channel (PDSCH) signal or a Physical Uplink Shared Channel (PUSCH) signal, or may be a control signal, such as a Physical Downlink Control Channel (PDCCH), or may be a reference signal, such as a Position Reference Signal.

[0014] Through the above method, when there is a need to send or receive a second signal between the first terminal device and the first network device, the first terminal device may first send a first signal, so that network devices and terminal devices in other cells can identify the need to send or receive the second signal based on the first signal, adjust signal sending or receiving, achieve interference avoidance, and ensure that the data transmission of the second signal is not interfered.

[0015] In addition, the second network device may receive the first signal from an air device, that is, send and receive signals through the air interface, and the time delay is shorter compared to the information interaction between stations.

[0016] Combined with the first aspect, in some implementation manners of the first aspect, the frequency range of the first frequency domain resource includes the frequency range of the second frequency domain resource.

[0017] It should be understood that the frequency range of the second frequency domain resource may be the same as the frequency range of the first frequency domain resource, or may be a part of the frequency range of the first frequency domain resource.

[0018] Combined with the first aspect, in some implementation manners of the first aspect, the first frequency domain resource includes M first frequency domain resource grids, and the second frequency domain resource includes N first frequency domain resource grids among the M first frequency domain resource grids, where N is less than or equal to M.

[0019] Optionally, the above M first frequency domain resource grids may be included in K first frequency domain resource grids, and the frequency domain resources included in the K first frequency domain resource grids may be all or part of the frequency domain resources of the first cell, where M is a positive integer less than or equal to K.

[0020] Combined with the first aspect, in some implementation manners of the first aspect, the first frequency domain resource grid is the detection granularity of the first signal, and the first frequency domain resource grid is the scheduling granularity of the second signal.

[0021] In connection with the first aspect, in certain implementations of the first aspect, the first frequency-domain resource includes M first frequency-domain resource grids, the second frequency-domain resource includes L second frequency-domain resource grids, the first frequency-domain resource grid is the detection granularity of the first signal, and the second frequency-domain resource grid is the scheduling granularity of the second signal.

[0022] In connection with the first aspect, in certain implementations of the first aspect, the sizes of the first frequency-domain resource grid and the second frequency-domain resource grid are different.

[0023] In connection with the first aspect, in certain implementations of the first aspect, the sizes of the first frequency-domain resource grid and the second frequency-domain resource grid are different, and the second frequency-domain resource grid may be further divided based on the first frequency-domain resource grid, or in other words, each of the M first frequency-domain resource grids includes a plurality of second frequency-domain resource grids.

[0024] In connection with the first aspect, in certain implementations of the first aspect, different types of the first signals carried on one first frequency-domain resource grid have a corresponding relationship with different numbers of the second frequency-domain resource grids.

[0025] It should be understood that one first frequency-domain resource grid may correspond to multiple types of first signals, where the multiple types of first signals are respectively used to indicate the transmission or reception of the second signal on different numbers of second frequency-domain resource grids. The second network device determines the frequency range of the second frequency-domain resource or in other words determines which second frequency-domain resource grids the second frequency-domain resource includes according to the type of the first signal.

[0026] In connection with the first aspect, in certain implementations of the first aspect, the second network device determines the signal transmission or reception between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource, specifically: sending first indication information, where the first indication information is used to indicate to stop or cancel the signal transmission or reception between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource for a third signal.

[0027] In this way, by stopping or canceling the transmission of the third signal, interference of the third signal between the second network device and the second terminal device to the second signal between the first network device and the first terminal device is avoided.

[0028] In combination with the first aspect, in some implementations of the first aspect, determining signal transmission or reception between a second network device and a second terminal device on the second time-domain resource and the second frequency-domain resource specifically includes: transmitting second indication information, where the second indication information is used to indicate adjustment of the spatial-domain transmission configuration of a third signal between the second network device and the second terminal device on the second frequency-domain resource, and the spatial-domain transmission configuration includes at least one of a precoding matrix, a spatial filter, or a beam of the third signal.

[0029] In this manner, by adjusting the spatial-domain configuration, interference of the third signal between the second network device and the second terminal device with the second signal between the first network device and the first terminal device can be suppressed.

[0030] In combination with the first aspect, in some implementations of the first aspect, the third signal can be a periodically transmitted or received signal. For example, if the third signal is supposed to be periodically transmitted or received on the second time-domain resource and the second frequency-domain resource, then it can be determined that the second network device and the second terminal device do not transmit or receive the third signal, or the spatial-domain transmission configuration of the third signal is adjusted.

[0031] In combination with the first aspect, in some implementations of the first aspect, determining signal transmission or reception between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource specifically includes: determining that there is no signal transmission or reception between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource.

[0032] Furthermore, signal transmission or reception that causes interference to the second signal between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource can be completely avoided.

[0033] In combination with the first aspect, in some implementations of the first aspect, the second time-domain resource is located after the first time-domain resource.

[0034] In combination with the first aspect, in some implementations of the first aspect, there is an interval of J time units between the end time of the first time-domain resource and the start time of the second time-domain resource, where J is a positive integer.

[0035] In combination with the first aspect, in some implementations of the first aspect, the second time-domain resource is continuous with the first time-domain resource.

[0036] In combination with the first aspect, in some implementations of the first aspect, the second time-domain resource can be a scheduling time period for one-time transmission or reception of a first signal.

[0037] In combination with the first aspect, in some implementations of the first aspect, the first signal is a PDSCH signal, and the scheduling time-domain resource of the PDSCH signal is symbols L to L+K within the first time slot. Then, the second time-domain resource is symbols L to L+K within the first time slot.

[0038] Optionally, the second time-domain resource may be a predefined or preconfigured time window, within which the first signal can be transmitted or received one or more times.

[0039] In combination with the first aspect, in some implementations of the first aspect, the first time-domain resource and the second time-domain resource are included in a first time unit; or, the first time-domain resource is included in a second time unit, and the second time-domain resource includes multiple time units.

[0040] Optionally, the one time unit may further include a third time-domain resource, which is located before the first time-domain resource and is a time period for the first network device to send a third indication message or for the first terminal device to receive a third indication message. The third indication message may be a first message such as DCI for scheduling the transmission or reception of a second signal, or may be carried in the first message.

[0041] Exemplarily, the first time-domain resource may be included in a second time unit, the second time-domain resource may include one or more time units, and the one or more time units may include the second time unit.

[0042] In a second aspect, a communication method is provided. This method may be executed by a first terminal device, or may be executed by a module (such as a chip or a circuit) in the first terminal device, or may also be executed by a logical node, a logical module, or software that can implement all or part of the functions of the first terminal device. This application does not make any limitations in this regard.

[0043] The method includes: The first terminal device sends a first signal on a first time-domain resource and a first frequency-domain resource, where the first signal is used to indicate the existence of a second signal transmission or reception between a first network device and the first terminal device on a second time-domain resource and a second frequency-domain resource; on the second time-domain resource and the second frequency-domain resource, the first terminal device sends or receives the second signal between the first network device and the first terminal device.

[0044] The first terminal device may be an aerial terminal such as a drone, a satellite, etc., or a terminal device on an aerial device.

[0045] The first terminal device can interact with the second network device through the air interface for the first signal, enabling the second network device and the second terminal device to learn about the existence of the transmission or reception of the second signal, which has a shorter time delay compared to information interaction through the backhaul link (such as the information interaction between network devices through the backhaul link).

[0046] Through the above method, when the first terminal device has a need to transmit or receive the second signal, it can first transmit the first signal to inform the network devices and terminal devices in other cells to perform interference avoidance, thereby ensuring that the data transmission of the second signal is free from interference.

[0047] Optionally, the first terminal device that transmits the first signal and the communication device that transmits or receives the second signal can be the same or different. For example, the first terminal device determines that there is a transmission or reception of the second signal between another terminal device and the network device in the second time domain resource and the second frequency domain resource, and then transmits the first signal on behalf of them.

[0048] Combined with the second aspect, in some implementation manners of the second aspect, the first signal is a reference signal.

[0049] The specific scheme descriptions of the first signal and the second signal can refer to the first aspect and will not be elaborated here.

[0050] Combined with the second aspect, in some implementation manners of the second aspect, the frequency range of the first frequency domain resource includes the frequency range of the second frequency domain resource.

[0051] Combined with the second aspect, in some implementation manners of the second aspect, the first frequency domain resource includes M first frequency domain resource grids, and the second frequency domain resource includes N first frequency domain resource grids among the M first frequency domain resource grids, where N is less than or equal to M.

[0052] Combined with the second aspect, in some implementation manners of the second aspect, the first frequency domain resource grid is the transmission granularity of the first signal, and the first frequency domain resource grid is the scheduling granularity of the second signal.

[0053] It should be understood that for the first terminal device, the first frequency domain resource grid is the transmission granularity of the first signal. In other words, the first terminal device transmits the first signal on the first frequency domain resource (i.e., the frequency resource included in the M first frequency domain resource grids) with one first frequency domain resource grid as the granularity.

[0054] Optionally, the first frequency domain resource grid is the generation granularity of the first signal. In other words, the first signal is a set of M signals generated by the first terminal device on the M first frequency domain resource grids with one first frequency domain resource grid as the granularity.

[0055] It should be understood that the first terminal device can learn that the second network device detects the first signal in units of the first frequency domain grid, then the first terminal device can also send the first signal in units of the first frequency domain resource grid on the first time domain resource and the first frequency domain resource; at the same time, the first network device serving the first cell schedules the first terminal device to send or receive the second signal on the second time domain resource and the second frequency domain resource in units of the second frequency domain resource grid; the second network device detects the first signal on the first time domain resource and the first transmission bandwidth respectively in units of the first frequency domain resource grid. If the second network device detects the first signal on the first time domain resource and the first frequency domain resource, the second network device learns that there is a transmission or reception of the second signal between the first network device and the first terminal device on the second time domain resource and the second frequency domain resource.

[0056] In combination with the second aspect, in some implementation manners of the second aspect, the first frequency domain resource includes M first frequency domain resource grids, the second frequency domain resource includes L second frequency domain resource grids, the first frequency domain resource grid is the generation granularity of the first signal, and the second frequency domain resource grid is the scheduling granularity of the second signal.

[0057] It should be understood that the first terminal device can learn that the second network device detects the first signal in units of the first frequency domain grid, then the first terminal device can also send the first signal in units of the first frequency domain resource grid on the first time domain resource and the first frequency domain resource; at the same time, the first network device schedules the first terminal device to send or receive the second signal on the second time domain resource and the second frequency domain resource in units of the second frequency domain resource grid; the second network device detects the first signal on the first time domain resource and the first transmission bandwidth respectively in units of the first frequency domain resource grid. If the second network device detects the first signal on the first time domain resource and the first frequency domain resource, the second network device learns that there is a transmission or reception of the second signal between the first network device and the first terminal device on the second time domain resource and the second frequency domain resource.

[0058] In combination with the second aspect, in some implementation manners of the second aspect, each of the M first frequency domain resource grids includes a plurality of second frequency domain resource grids.

[0059] In combination with the second aspect, in some implementation manners of the second aspect, different types of the first signals carried on one first frequency domain resource grid have a corresponding relationship with different numbers of the second frequency domain resource grids.

[0060] For the specific description of the first frequency domain resource grid and the second frequency domain resource grid, reference may be made to the first aspect, which will not be elaborated here.

[0061] In combination with the second aspect, in some implementations of the second aspect, there is an interval of J time units between the end time of the first time-domain resource and the start time of the second time-domain resource, where J is a positive integer.

[0062] In combination with the second aspect, in some implementations of the second aspect, the first time-domain resource and the second time-domain resource are included in the first time unit; or, the first time-domain resource is included in the second time unit, and the second time-domain resource includes multiple time units.

[0063] For the specific descriptions of the first time-domain resource and the second time-domain resource, reference may be made to the first aspect, which will not be elaborated here.

[0064] In combination with the second aspect, in some implementations of the second aspect, the method further includes: receiving, in a third time-domain resource, third indication information sent by a first network device, where the third indication information is used to instruct a first terminal device to send the first signal on the first time-domain resource and the first frequency-domain resource, and the third time-domain resource is located before the first time-domain resource.

[0065] In combination with the second aspect, in some implementations of the second aspect, the third indication information is carried in a first piece of information, and the first piece of information is used to schedule the second signal; or, the third indication information is further used to schedule the second signal.

[0066] Optionally, the third indication information may be the first piece of information for scheduling the second signal, such as downlink control information (DCI), or may be one or more bits carried in the first piece of information (such as carried in DCI), and the first piece of information is used to schedule the first signal, that is, the first piece of information can be used to schedule the first network device to send or receive the second signal. Specifically, for example, after receiving the first piece of information, the first terminal device may default to first send the first signal, and then send or receive the second signal. Therefore, in addition to scheduling the second signal, the first piece of information also has the function of indicating the transmission of the first signal. For another example, the third indication information may be to trigger the first terminal device to send the first signal on the first time-domain resource and the first frequency-domain resource, that is, after receiving the third indication information, the first terminal device immediately sends the first signal at the end moment of the third indication information. The present application does not limit the specific content of the third indication information.

[0067] In combination with the second aspect, in some implementations of the second aspect, within the second time-domain resource, the second frequency-domain resource is a frequency-domain resource in which the first terminal device does not expect to receive signals from other network devices other than the first network device; or, within the second time-domain resource, the first terminal device does not expect to receive signals from other network devices other than the first network device on the second frequency-domain resource.

[0068] Some possible implementation manners and beneficial effects of the second aspect can refer to the first aspect and will not be elaborated herein.

[0069] In a third aspect, a communication method is provided. The method includes: a first network device sending third indication information to a first terminal device, where the third indication information is used to instruct the first terminal device to send a first signal on a first time-domain resource and a first frequency-domain resource, and the first signal is used to indicate that there is a transmission or reception of a second signal between the first network device and the first terminal device on a second time-domain resource and a second frequency-domain resource; the first terminal device sending the first signal on the first time-domain resource and the first frequency-domain resource according to the third indication information; a second network device receiving the first signal sent by the first terminal device on the first time-domain resource and the first frequency-domain resource, and determining a signal transmission or reception between the second network device and a second terminal device on the second time-domain resource and the second frequency-domain resource according to the first signal.

[0070] In combination with the third aspect, in some implementation manners of the third aspect, the first network device sending the third indication information to the first terminal device includes: the first network device sending the third indication information to the first terminal device on a third time-domain resource, where the third time-domain resource is before the first time-domain resource.

[0071] In combination with the third aspect, in some implementation manners of the third aspect, the third indication information is carried in a first piece of information, and the first piece of information is used to schedule the second signal; or, the third indication information is further used to schedule the second signal.

[0072] In combination with the third aspect, in some implementation manners of the third aspect, on the second time-domain resource, the second frequency-domain resource is a frequency-domain resource where the first terminal device does not expect to receive signals from other network devices other than the first network device; or, on the second time-domain resource, the first terminal device does not expect to receive signals from other network devices other than the first network device on the second frequency-domain resource.

[0073] In combination with the third aspect, in some implementation manners of the third aspect, the second network device determining a signal transmission or reception between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource specifically is: the second network device sending first indication information, where the first indication information is used to instruct to stop or cancel a signal transmission or reception of a third signal between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource.

[0074] In combination with the third aspect, in some implementation manners of the third aspect, the determination by the second network device of signal transmission or reception between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource is specifically as follows: The second network device transmits second indication information, where the second indication information is used to indicate an adjustment to the spatial domain transmission configuration of a third signal between the second network device and the second terminal device on the second frequency-domain resource, and the spatial domain transmission configuration includes at least one of a precoding matrix, a spatial filter, or a beam of the third signal.

[0075] In combination with the third aspect, in some implementation manners of the third aspect, the determination by the second network device of signal transmission or reception between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource is specifically as follows: The second network device determines not to perform signal transmission or reception between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource.

[0076] For the specific solutions of the method described in the third aspect, reference may be made to the descriptions of the first aspect and the second aspect, which will not be elaborated here.

[0077] In a fourth aspect, a communication device is provided, and the device includes: a transceiver unit, configured to receive a first signal sent by a first terminal device on a first time-domain resource and a first frequency-domain resource, where the first signal is used to indicate the existence of signal transmission or reception of a second signal between a first network device and the first terminal device on a second time-domain resource and a second frequency-domain resource; a processing unit, configured to determine, according to the first signal, signal transmission or reception between a second network device and a second terminal device on the second time-domain resource and the second frequency-domain resource.

[0078] In combination with the fourth aspect, in some implementation manners of the fourth aspect, the transceiver unit is specifically configured to: transmit first indication information, where the first indication information is used to indicate stopping or canceling signal transmission or reception of a third signal between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource.

[0079] In combination with the fourth aspect, in some implementation manners of the fourth aspect, the transceiver unit is specifically configured to: transmit second indication information, where the second indication information is used to indicate an adjustment to the spatial domain transmission configuration of a third signal between the second network device and the second terminal device on a second frequency-domain resource, and the spatial domain transmission configuration includes at least one of a precoding matrix, a spatial filter, or a beam of the third signal.

[0080] In combination with the fourth aspect, in some implementation manners of the fourth aspect, the processing unit is specifically configured to: determine not to perform signal transmission or reception between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource.

[0081] For the explanations and beneficial effects of the communication device related content provided in the fourth aspect, reference can be made to the communication method shown in the first aspect, which will not be elaborated here.

[0082] In a fifth aspect, a communication device is provided. The device includes: a transceiver unit, configured to send a first signal on a first time-domain resource and a first frequency-domain resource, where the first signal is used to indicate the sending or receiving of a second signal between a first network device and a first terminal device on a second time-domain resource and a second frequency-domain resource, and to send or receive the second signal on the second time-domain resource and the second frequency-domain resource.

[0083] In combination with the fifth aspect, in some implementation manners of the fifth aspect, the first signal is a reference signal.

[0084] In combination with the fifth aspect, in some implementation manners of the fifth aspect, the frequency range of the first frequency-domain resource includes the frequency range of the second frequency-domain resource.

[0085] In combination with the fifth aspect, in some implementation manners of the fifth aspect, the transceiver unit is further configured to: receive, on a third time-domain resource, third indication information sent by the first network device, where the third indication information is used to indicate that the first terminal device sends the first signal on the first time-domain resource and the first frequency-domain resource, and the third time-domain resource is before the first time-domain resource.

[0086] In combination with the fifth aspect, in some implementation manners of the fifth aspect, within the second time-domain resource, the second frequency-domain resource is a frequency-domain resource where the first terminal device does not expect to receive signals from other network devices other than the first network device; or, within the second time-domain resource, the first terminal device does not expect to receive signals from other network devices other than the first network device on the second frequency-domain resource.

[0087] For the explanations and beneficial effects of the communication device related content provided in the fifth aspect, reference can be made to the communication method shown in the second aspect, which will not be elaborated here.

[0088] In a sixth aspect, a communication system is provided. The communication system includes a first network device, a first terminal device, and a second network device. The first network device sends third indication information to the first terminal device. The third indication information is used to instruct the first terminal device to send a first signal on a first time domain resource and a first frequency domain resource. The first signal is used to indicate the sending or receiving of a second signal between the first network device and the first terminal device on a second time domain resource and a second frequency domain resource. The terminal device sends the first signal on the first time domain resource and the first frequency domain resource according to the third indication information. The second network device receives the first signal on the first time domain resource and the first frequency domain resource, and determines the signal sending or receiving between the second network device and a second terminal device on the second time domain resource and the second frequency domain resource according to the first signal.

[0089] In combination with the sixth aspect, in some implementation manners of the sixth aspect, the first network device sending the third indication information to the first terminal device includes: the first network device sending the third indication information to the first terminal device on a third time domain resource, and the third time domain resource is located before the first time domain resource.

[0090] In combination with the sixth aspect, in some implementation manners of the sixth aspect, the third indication information is carried in first information, and the first information is used to schedule the second signal; or, the third indication information is further used to schedule the second signal.

[0091] In combination with the sixth aspect, in some implementation manners of the sixth aspect, on the second time domain resource, the second frequency domain resource is a frequency domain resource where the terminal device does not expect to receive signals from other network devices except the first network device; or, on the second time domain resource, the terminal device does not expect to receive signals from other network devices except the first network device on the second frequency domain resource.

[0092] In combination with the sixth aspect, in some implementation manners of the sixth aspect, the second network device determining the signal sending or receiving between the second network device and the second terminal device on the second time domain resource and the second frequency domain resource specifically includes: the second network device sending first indication information, and the first indication information is used to instruct to stop or cancel the signal sending or receiving of a third signal between the second network device and the second terminal device on the second time domain resource and the second frequency domain resource.

[0093] In combination with the sixth aspect, in some implementations of the sixth aspect, the determination of signal transmission or reception between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource is specifically as follows: The second network device transmits second indication information, and the second indication information is used to indicate an adjustment to the spatial domain transmission configuration of a third signal between the second network device and the second terminal device on the second frequency-domain resource, where the spatial domain transmission configuration includes at least one of a precoding matrix, a spatial filter, or a beam of the third signal.

[0094] In combination with the sixth aspect, in some implementations of the sixth aspect, the determination of signal transmission or reception between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource is specifically as follows: The second network device determines not to perform signal transmission or reception between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource.

[0095] For the explanations and beneficial effects of the communication system related content provided in the sixth aspect, reference can be made to the communication method shown in the third aspect, which will not be elaborated here.

[0096] In a seventh aspect, a communication device is provided, including a processor, and the processor is configured to cause the communication device to execute the first aspect and any possible method of the first aspect by executing a computer program or instruction or through a logic circuit.

[0097] In a possible implementation, the communication device further includes a memory, which is used to store the computer program or instruction.

[0098] In a possible implementation, the communication device further includes a communication interface, which is used to input and / or output signals.

[0099] In an eighth aspect, a communication device is provided, including a processor, and the processor is configured to cause the communication device to execute the second aspect and any possible method of the second aspect by executing a computer program or instruction or through a logic circuit.

[0100] In a possible implementation, the communication device further includes a memory, which is used to store the computer program or instruction.

[0101] In a possible implementation, the communication device further includes a communication interface, which is used to input and / or output signals.

[0102] In a ninth aspect, a communication device is provided, including a logic circuit and an input / output interface. The input / output interface is used for inputting and / or outputting signals, and the logic circuit is used to execute the first aspect and any possible method of the first aspect; or, the logic circuit is used to execute the second aspect and any possible method of the second aspect; the logic circuit is used to execute the third aspect and any possible method of the third aspect.

[0103] In a tenth aspect, a computer-readable storage medium is provided. A computer program or instruction is stored on the computer-readable storage medium. When the computer program or the instruction runs on a computer, the first aspect and any possible method of the first aspect are caused to be executed; or, the second aspect and any possible method of the second aspect are caused to be executed; the third aspect and any possible method of the third aspect are caused to be executed.

[0104] In an eleventh aspect, a computer program product is provided, including instructions. When the instructions run on a computer, the first aspect and any possible method of the first aspect are caused to be executed; or, the second aspect and any possible method of the second aspect are caused to be executed; the third aspect and any possible method of the third aspect are caused to be executed; or.

[0105] In a twelfth aspect, a communication system is provided. The communication system includes the communication device described in the seventh aspect and the communication device described in the eighth aspect.

[0106] For the description of the beneficial effects of the fourth aspect to the twelfth aspect, reference can be made to the description of the first aspect to the third aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0107] Figure 1 It is a schematic diagram of a network architecture provided by an embodiment of the present application.

[0108] Figure 2 It is a schematic flowchart of a communication method provided by an embodiment of the present application.

[0109] Figure 3 It is a schematic diagram of another network architecture provided by an embodiment of the present application.

[0110] Figure 4 It is a schematic flowchart of another communication method provided by an embodiment of the present application.

[0111] Figure 5 It is a schematic flowchart of sending third indication information provided by an embodiment of the present application.

[0112] Figure 6 It is a schematic flowchart of another communication method provided by an embodiment of the present application.

[0113] Figure 7 It is a schematic flowchart of another communication method provided by an embodiment of the present application.

[0114] Figure 8 It is a schematic diagram of a first frequency domain resource and a second frequency domain resource provided by an embodiment of the present application.

[0115] Figure 9 It is a schematic diagram of another first frequency domain resource and a second frequency domain resource provided by an embodiment of the present application.

[0116] Figure 10 It is a schematic diagram of a first time domain resource and a second time domain resource provided by an embodiment of the present application.

[0117] Figure 11 It is a schematic diagram of another first time domain resource and a second time domain resource provided by an embodiment of the present application.

[0118] Figure 12 It is a schematic block diagram of a communication device provided by an embodiment of the present application.

[0119] Figure 13 It is a schematic block diagram of another communication device provided by an embodiment of the present application.

[0120] Figure 14 It is a schematic block diagram of another communication device provided by an embodiment of the present application. Detailed implementation manners

[0121] Next, the technical solutions in the present application will be described with reference to the accompanying drawings.

[0122] Before introducing the embodiments, the terms related to the present application will be described in detail.

[0123] 1. Line-of-sight transmission

[0124] The signal propagation in air communication is mainly line-of-sight propagation (LOS propagation). Line-of-sight propagation is a propagation mode in which a wireless signal propagates in a straight line between a transmitting end and a receiving end without obstruction, or in other words, it is a propagation mode in which a wireless signal directly propagates from a transmitting point to a receiving point within a distance where the transmitting antenna and the receiving antenna can "see" each other (for example, without an obstruction), that is, within the line of sight.

[0125] 2. Time unit

[0126] The time unit can be a time slot, an orthogonal frequency division multiplexing (OFDM) symbol, a mini-slot, a transmission time interval (TTI), or a subframe.

[0127] 3. Frequency-domain resource grid

[0128] All or part of the frequency-domain resources of the transmission bandwidth of the cell can be divided into multiple frequency-domain resource grids, and each frequency-domain resource grid can include some resource blocks (RBs) in the transmission bandwidth. For example, the transmission bandwidth of the cell can include 20 resource blocks numbered RB#0 to RB#19. These 20 resource blocks can be divided into 5 frequency-domain resource grids numbered frequency-domain resource grid #1 to #5, and each first frequency-domain resource grid includes 4 RBs, that is, frequency-domain resource grid #1 includes RB#0 to 3, frequency-domain resource grid #2 includes RB#4 to 7, and so on. The frequency-domain resource grid can also be referred to as a frequency-domain resource raster, a frequency-domain resource unit, etc., and this patent does not make a limitation here.

[0129] First, in combination with Figure 1 , the communication system and network architecture applicable to the embodiments of this application are introduced.

[0130] The technical solutions provided by this application can be applied to various communication systems, such as: the fifth-generation (5G) or new radio (NR) system, the long-term evolution (LTE) system, the LTE frequency division duplex (FDD) system, the LTE time division duplex (TDD) system, the universal mobile telecommunication system (UMTS), etc. The technical solutions provided by this application can also be applied to future communication systems, such as the sixth-generation (6G) mobile communication system. The technical solutions provided by this application can also be applied to device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, machine-to-machine (M2M) communication, machine type communication (MTC), the Internet of Things (IoT) communication system, the non-terrestrial network (NTN) communication system, or other communication systems.

[0131] This application can also be applied to other communication systems. As long as there are entities in the communication system that need to send downlink data and pilot information, and another entity needs to receive indication information and can transmit data through uplink feedback information. Or rather, there are downlink and uplink communication links in the communication system.

[0132] It should be understood that the specific structure of the execution subject of the method provided in the embodiments of this application is not particularly limited. As long as it can communicate according to the method provided in the embodiments of this application by running a program that records the code of the method provided in the embodiments of this application. For example, the execution subject of the method provided in the embodiments of this application can be a terminal device or a network device, or a functional module in the terminal device or network device that can call and execute the program.

[0133] As an example, Figure 1 shows a schematic architecture diagram of a network architecture provided by the embodiments of this application. Exemplarily, the architecture may include terminal devices UE1 and UE2, and a network device.

[0134] The terminal device involved in the embodiments of the present application can also be referred to as a terminal, which can be a device with wireless transceiver functions. It can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; it can also be deployed on water (such as a ship, etc.); it can also be deployed in the air (such as an airplane, a balloon, a satellite, etc.). The terminal device can be a user equipment (UE). Among them, the UE includes a handheld device, a vehicle-mounted device, a wearable device or a computing device with wireless communication functions. Exemplarily, the UE can be a mobile phone, a tablet computer, or a computer with wireless transceiver functions, etc. In addition, the terminal device can also be a device capable of supporting the terminal to implement this function, such as a chip or a chip system, and this device can be installed in the terminal. In the technical solutions provided by the embodiments of the present application, the device for implementing the functions of the terminal is taken as an example of the terminal to describe the technical solutions provided by the embodiments of the present application. It should be understood that the terminal is a general term, including the most common mobile phone, CPE, integrated access backhaul (IAB) terminal. The terminal device can also be a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in remote medical treatment, a wireless terminal in a smart grid, a wireless terminal in a smart city, a wireless terminal in a smart home, and so on.

[0135] In the embodiments of the present application, the device for implementing the functions of the terminal device can be the terminal device, or a device capable of supporting the terminal device to implement this function, such as a chip system or a chip, and this device can be installed in the terminal device. In the embodiments of the present application, the chip system can be composed of chips, or can include chips and other discrete devices.

[0136] The network device involved in the embodiments of the present application includes a base station (BS), which can be a device deployed in a radio access network capable of wireless communication with a terminal. Among them, the base station may have various forms. For example, a macro base station, a micro base station, a relay station, an access point, a backhaul station, etc. Exemplarily, the base station involved in the embodiments of the present application may be a base station in 5G or a base station in LTE. Among them, the base station in 5G may also be referred to as a transmission reception point (TRP) or a next generation node (gNB). In the embodiments of the present application, the device for implementing the functions of the network device may be the network device; it may also be a device capable of supporting the network device to implement such functions, such as a chip or a chip system, and this device may be installed in the network device. In the embodiments of the present application, the chip system may be composed of chips or may include chips and other discrete devices. In the technical solution provided in the embodiments of the present application, taking the device for implementing the functions of the network device as the network device and the network device being a base station as an example, the technical solution provided in the embodiments of the present application is described.

[0137] As Figure 1 shown, the network device, the terminal UE1, and UE2 form a communication network. Among them, UE1 may be the above-mentioned drone terminal deployed in the air, such as an unmanned aerial vehicle terminal, or UE1 may be a terminal device in a drone; UE2 may be any of the above-listed ground terminals; the network device may be the above-mentioned gNB. In this network architecture, the network device can send downlink data to the terminal devices UE1 and UE2, and at the same time, the terminal devices UE1 and UE2 can also send uplink data to the network device.

[0138] It should be understood that the above-shown network architecture is only an exemplary illustration, and the communication system applicable to the embodiments of the present application is not limited thereto. Any communication capable of implementing the functions of the above-mentioned network elements is applicable to the embodiments of the present application. Exemplarily, Figure 1 the shown network architecture may include a larger number and more types of aerial UEs and ground UEs. Further exemplarily, the communication system of the embodiments of the present application may also be a non-terrestrial network (NTN) communication system, such as a satellite communication network, a high altitude platform station (HAPS), and an air-to-ground network, etc. For example, a satellite communication system may include a satellite, and there are terminal devices on the satellite for communication with a ground base station. Among them, the satellite may refer to a non-ground base station or non-ground device such as a drone, a hot air balloon, a low-earth orbit satellite, a medium-earth orbit satellite, a geostationary orbit satellite, etc. The NTN communication system can be deployed independently or as a supplement to the ground network.

[0139] It should also be understood that the above naming is only defined for the convenience of distinguishing different functions and should not impose any limitation on this application. This application does not exclude the possibility of using other naming in 6G networks and other future networks.

[0140] The existing interference management process and the existing technical problems will be described below.

[0141] At present, air communication services are gradually widely used. For example, drones provide air logistics services; low-altitude unmanned passenger aircraft can provide air urban commuting services to solve congestion problems. The downlink communication of air communication services needs to provide high spectral efficiency for air devices to meet their entertainment and communication needs; the uplink communication of air communication services needs to provide high throughput to meet the real-time control feedback of air devices.

[0142] Compared with Figure 1 the traditional ground communication between network devices and the terminal UE2 in

[0143] the air signal transmission between network devices and the terminal UE1 mainly uses line-of-sight propagation (LOS propagation). Due to the unobstructed straight-line propagation, compared with traditional ground communication, the attenuation of the wireless signal in LOS propagation is smaller, and thus the signal strength is greater and the signal coverage range is wider. Therefore, in the above air communication scenarios such as air signal transmission, compared with traditional ground communication, there are more ground cells or air cells interfering with the cell serving the air UE, or there are more communication devices interfering with the cell serving the air UE, resulting in the signal transmission or reception performance of the air UE being affected.

[0144] To solve the above technical problems, this application provides a communication method 200, which can achieve low-latency inter-cell interference avoidance. The embodiments of the communication method 200 will be described below with reference to the accompanying drawings Figures 2 to 11 and the embodiments of the communication method 200 will be described.

[0145] Embodiment 1:

[0146] Figure 2It is a schematic diagram of the interaction process of the communication method 200 according to an embodiment of the present application, which includes a first network device, a second network device, and a first terminal device. Figure 2 The method shown can be executed by the first network device, the second network device, and the first terminal device, or by modules and / or devices (such as chips or integrated circuits, etc.) with corresponding functions installed in the first network device, the second network device, and the first terminal device. The present application does not make any limitations in this regard.

[0147] Figure 3 It shows a schematic diagram of a network architecture applicable to the communication method 200. As Figure 3 shown, the first network device can establish a communication connection with the first terminal device, or the first network device provides services to the first terminal device. The second network device may not establish a communication connection with the first terminal device (it should be understood that although the second network device receives the first signal sent by the first terminal device, it does not mean that the second network device has established a communication connection with the first terminal device), or rather, the second network device does not serve the first terminal device.

[0148] As Figure 3 shown, the second network device can be a network device serving the second terminal device in the second cell. The first terminal device can be an air terminal or a terminal on an air device. The first terminal device establishes a connection with the first network device, and the first terminal device does not establish a communication connection with the second network device. The second network device can establish a communication connection with the second terminal device, and the second terminal device can be a terminal device in the second cell.

[0149] As Figure 3 shown, since the first terminal device can be an air terminal or a terminal on an air device, that is, the user of the first terminal device is an air user, the first cell closer to the first terminal device can be an air cell, and the first network device can be an air base station. Correspondingly, the second cell farther from the first terminal device can be a ground cell, the user of the second terminal device is a ground user, and the second network device can be a ground base station.

[0150] As Figure 2 shown, the communication method 200 includes steps S250 and S260. Optionally, the communication method 200 may further include steps S210 to S240. In other words, in the communication method 200, the steps of determining the first signal and determining the resources for sending the first signal are optional steps. Or rather, the communication method 200 may only include steps S250 and S260, or may also include steps S210 to S260 as Figure 2 shown.

[0151] Optionally, in step S210, the first network device obtains first configuration information and / or resource configuration information.

[0152] In some embodiments of the present application, the first network device may first determine the first configuration information of the first cell and / or determine the resource configuration information according to the first cell to which it belongs, so as to implement obtaining the first configuration information and / or resource configuration information in step S210. In other words, in the embodiments of the present application, the process of the network device obtaining information may include an equivalent replacement description, that is, the network device first determines the information and then obtains the information.

[0153] Specifically, the first configuration information may include cell configuration information and / or location information of the first cell, which is used to determine a first signal, and the first signal is used to indicate the transmission or reception of a second signal between the first network device and the first terminal device in a second time domain resource and a second frequency domain resource; the resource configuration information is used to indicate a first resource (such as indicating a time domain resource and a frequency domain resource). The first resource may be used for the first terminal device to send a first signal, and the first resource may also be used for the second network device to receive the first signal.

[0154] Exemplarily, the cell configuration information of the first cell may include the physical cell identifier of the first cell or the sequence information of the first signal indicated by the first cell. At this time, the first signal may be a cell-level reference signal generated according to the cell configuration information of the first cell. For example, the first signal is a sequence generated based on a root index (such as a Zadoff Chu sequence), and the root index may be equal to the value of the physical cell identifier of the first cell, or the root index may be equal to the sequence value of the first signal indicated by the first cell. For example, the first signal is scrambled by a first scrambling code, and the first scrambling code is generated based on the identifier of the physical cell of the first cell. The location information of the first cell may include global positioning system (GPS) information and other information used to indicate the area or location where the first cell is located. At this time, the first signal may be a region-level signal generated according to the location information.

[0155] For example, in a predefined or preconfigured manner, it is defined that the first network device uses signal A in area A and uses signal B in the predefined or preconfigured area B. The first network device determines that it is currently located in area A according to the obtained location information, and then determines that the first signal is signal A corresponding to area A.

[0156] Exemplarily, the resource configuration information may include any one or any combination of the following: frequency domain resource configuration information indicating the frequency domain resource for sending or receiving the first signal, time domain resource configuration information indicating the time domain resource for sending or receiving the first signal, and code domain resource configuration information indicating the code domain resource for sending or receiving the first signal.

[0157] Optionally, in step S220, the first network device sends the first configuration information and / or resource configuration information.

[0158] Specifically, as Figure 2 shown, step S220 includes steps S221 and S225:

[0159] S221, send the first configuration information and / or resource configuration information to the second network device.

[0160] Correspondingly, the second network device receives the first configuration information and / or resource configuration information from the first network device.

[0161] Furthermore, optionally, after receiving the first configuration information and / or resource configuration information, the second network device may execute step S230 to determine the first signal to be received according to the first configuration information and / or resource configuration information. Alternatively, the second network device attempts to receive or detect the first signal according to the first configuration information and / or resource configuration information. The second network device may receive or detect the first signal through the air interface or the like, and then may receive the first signal from the first terminal device through the air interface or the like.

[0162] S225, send the first configuration information and / or resource configuration information to the first terminal device.

[0163] Correspondingly, the first terminal device receives the first configuration information and / or resource configuration information from the first network device.

[0164] Furthermore, after receiving the first configuration information and / or resource configuration information, the first terminal device determines the first signal, that is, executes step S240 in the communication method 200, and the first terminal device determines the first signal. Furthermore, the first terminal device may send the first signal on the first time domain resource and the first frequency domain resource.

[0165] In the embodiments of the present application, the first terminal device may be Figure 1 the air terminal UE1 belonging to the first cell in the shown network architecture, or may be a terminal device on an air device such as a satellite or a balloon mentioned above.

[0166] The present application does not limit the order of steps S221 and S225. These two steps may be performed sequentially or simultaneously.

[0167] Optionally, step S220 may further include step S227, where the first network device sends third indication information to the first terminal device.

[0168] Correspondingly, the first terminal device receives the third indication information from the first network device.

[0169] Specifically, the third indication information is used to indicate that the first terminal device sends a first signal on a first time-domain resource and a first frequency-domain resource, for example, triggering the first terminal device to send the first signal. For example, the first network device may send the third indication information while sending the first configuration information and / or resource configuration information in step S225, such as sending the above information using the same channel resource. For another example, as Figure 2 shown, the first network device may send the third indication information to the first terminal device at any time before the first terminal device executes step S240 through step S227. This application does not impose any limitation on the sending manner of the third indication information.

[0170] Optionally, the third indication information may be a first piece of information for scheduling a second signal, such as downlink control information (DCI), or one or more bits carried in the first piece of information (such as carried in DCI). The first piece of information is used to schedule the first signal, that is, the first piece of information may be used to schedule the first network device to send or receive the first signal. Specifically, for example, after receiving the first piece of information, the first network device may default to first send the first signal, and then send or receive the second signal. Therefore, in addition to scheduling the second signal, the first piece of information also has the function of indicating the sending of the first signal. For another example, the third indication information may be to trigger the first terminal device to send the first signal on the first time-domain resource and the first frequency-domain resource, that is, after receiving the third indication information, the first terminal device immediately sends the first signal at the end moment of the third indication information. This application does not impose any limitation on the specific content of the third indication information.

[0171] Optionally, in step S240, the first terminal device determines the first signal.

[0172] Specifically, the first signal is used to indicate the sending or receiving of a second signal between the first network device and the first terminal device on a second time-domain resource and a second frequency-domain resource.

[0173] Optionally, the second signal may be a data signal, such as a physical downlink shared channel (PDSCH) signal or a physical uplink shared channel (PUSCH) signal, or a control signal, such as a physical downlink control channel, or a reference signal, such as a positioning reference signal.

[0174] Step S250, the first terminal device sends the first signal on the first time domain resource and the first frequency domain resource.

[0175] Optionally, the second network device may receive or detect the first signal from the first terminal device on the first time domain resource and the first frequency domain resource, where the second network device may be any network device capable of receiving or detecting the first signal. In the embodiments of the present application, signals may be sent and received between the second network device and the first terminal device through the air interface. Compared with the information interaction between cell sites, the latency of information interaction through the air interface is shorter. The first signal is used to indicate the sending or receiving of a second signal between the first network device and the first terminal device on the second time domain resource and the second frequency domain resource. That is, when the first terminal device sends the first signal, it means that there is a sending or receiving of a second signal between the first network device and the first terminal device on the second time domain resource and the second frequency domain resource; when the first terminal device does not send the first signal, it means that there is no sending or receiving of a first signal between the first network device and the first terminal device on the second time domain resource and the second frequency domain resource. That is, when the second network device detects or receives the first signal, it means that the second network device determines that there is a sending or receiving of a first signal between the first network device and the first terminal device on the second time domain resource and the second frequency domain resource; when the second network device does not detect or receive the first signal, it means that the second network device determines that there is no sending or receiving of a first signal between the first network device and the first terminal device on the second time domain resource and the second frequency domain resource.

[0176] It should be understood that within the second time domain resource, the above-mentioned second frequency domain resource is the frequency domain resource where the first terminal device does not expect to receive signals from other network devices other than the first network device; or, within the second time domain resource, the first terminal device does not expect to receive signals from other network devices other than the first network device on the second frequency domain resource.

[0177] In the embodiments of the present application, the second time domain resource indicated by the first signal is after the first time domain resource in step S250. Specifically, the first time domain resource may be continuous with the second time domain resource, that is, the end time of the first time domain resource is the same as the start time of the second time domain resource. In some other embodiments of the present application, there may be an interval of one or more time units between the end time of the first time domain resource and the start time of the second time domain resource, and the one or more time units may be predefined or determined through configuration parameters. The first time domain resource and the second time domain resource will be specifically introduced later and will not be elaborated here.

[0178] In an embodiment of the present application, the frequency range of the first frequency-domain resource may include the frequency range of the second frequency-domain resource, that is, the frequency range of the frequency-domain resource of the first signal may include the frequency range of the frequency-domain resource of the second signal. The first time-domain resource and the second time-domain resource will be specifically introduced later and will not be elaborated here.

[0179] Step S260, the second network device determines signal transmission or reception between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource according to the first signal.

[0180] Specifically, after the second network device receives the first signal on the first time-domain resource and the first frequency-domain resource, it determines signal transmission or reception between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource according to the second time-domain resource and the second frequency-domain resource indicated in the first signal. The second cell may include the second terminal device that causes interference to the transmission or reception of the second signal, that is, the signal transmitted or received by the second terminal device in the second cell will cause interference to the second signal.

[0181] It should be understood that the signal between the second network device and the second terminal device may be any signal, a signal that can be dynamically scheduled, or a signal that is periodically transmitted or received.

[0182] Optionally, the second network device determines signal transmission or reception between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource specifically as follows: The second network device may send first indication information, and the first indication information is used to indicate to stop or cancel signal transmission or reception of a third signal between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource. Correspondingly, the second terminal device stops or cancels signal transmission or reception of the third signal on the second time-domain resource and the second frequency-domain resource. That is, if the second network device receives the first signal on the first time-domain resource and the first frequency-domain resource, the second network device may send the first indication information. If the second network device does not receive the first signal on the first time-domain resource and the first frequency-domain resource, the second network device does not send the first indication information.

[0183] Optionally, the second network device determines signal transmission or reception between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource. Specifically, the second network device may send second indication information, which is used to indicate adjustment of the spatial-domain transmission configuration of the third signal. For example, after receiving the second indication information, the second terminal device may adjust the spatial-domain transmission configuration of the third signal, such as the precoding matrix, or the spatial filter, or the beam of the third signal. Correspondingly, the second terminal device may adjust the spatial-domain transmission configuration of the third signal according to the second indication information. For another example, before receiving the second indication information, the second terminal device determines that the spatial-domain transmission configuration of the third signal is the first spatial-domain transmission configuration, such as the first precoding matrix, and after receiving the second indication information, the second terminal device determines that the spatial-domain transmission configuration of the third signal is the second spatial-domain transmission configuration, such as the second precoding matrix. Therefore, it can also be said that the second indication information indicates the second spatial-domain transmission configuration of the third signal within the fourth time-domain resource. The total transmission or reception time period of the second signal is the second time-domain resource. The fourth time-domain resource is a part of the second time-domain resource. The spatial-domain transmission configuration of the second signal within the fourth time-domain resource is the second spatial-domain transmission configuration. Before the fourth time-domain resource, the spatial-domain transmission configuration of the second signal may be the first spatial-domain transmission configuration, and the first spatial-domain transmission configuration may be different from the second spatial-domain transmission configuration. That is, if the second network device receives the first signal on the first time-domain resource and the first frequency-domain resource, the second network device may send the second indication information. If the second network device does not receive the first signal on the first time-domain resource, the second network device does not send the second indication information.

[0184] Optionally, the second network device determines signal transmission or reception between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource. Specifically, the second network device may also send a fourth indication message, which is used to indicate that no signal transmission or reception is to be determined between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource. Further, signal transmission or reception that may interfere with the second signal between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource can be avoided. That is, if the second network device receives the first signal on the first time-domain resource, the second network device may determine that no signal transmission or reception is to be performed between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource. If the second network device does not receive the first signal on the first time-domain resource, the second network device may perform signal transmission or reception between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource.

[0185] It should be noted that the step of the second network device sending the first indication information, or the second indication information, or the fourth indication information can be used to replace step S260. In other words, step S260 executed by the second network device is any one of the steps of the second network device sending the first indication information, or the second indication information, or the fourth indication information to the second terminal device.

[0186] Optionally, communication method 200 may further include step S270, where the first terminal device sends or receives a second signal on the second time domain resource and the second frequency domain resource. Or rather, the first terminal device has a need to send or receive a second signal. It should be understood that the role of the first signal is to indicate the existence of the sending or receiving of the second signal between the first network device and the first terminal device on the second time domain resource and the second frequency domain resource. Therefore, after the first terminal device sends the first signal on the first time domain resource and the first frequency domain resource, the first terminal device may further send or receive a second signal on the second time domain resource and the second frequency domain resource. That is to say, if the first terminal device sends the first signal on the first time domain resource and the first frequency domain resource, it will also send or receive a second signal on the second time domain resource and the second frequency domain resource; if the first terminal device does not send the first signal on the first time domain resource and the first frequency domain resource, it will not send or receive a second signal on the second time domain resource and the second frequency domain resource.

[0187] Next, the interaction processes between communication devices in communication method 200 will be specifically introduced with reference to Embodiments 2 to 4. Among them, for the specific descriptions of the various features in the solutions of Embodiments 2 to 4, reference can be made to Embodiment 1. Or rather, the features in Embodiments 2 to 4 that are the same as those in Embodiment 1 can refer back to Embodiment 1, such as the first signal, the first configuration information, the resource configuration information, etc. Details are not described herein.

[0188] Embodiment 2:

[0189] Figure 4 Shows the interaction flowchart of communication method 400. As Figure 4 shown, communication method S400 includes steps S410 to S470, and the descriptions of steps S410 to S470 can all refer back to the descriptions of steps S210 to S270.

[0190] Step S410, the first network device obtains the first configuration information and / or the resource configuration information.

[0191] Step S410 may refer to step S210 in Embodiment 1. The first configuration information and / or resource configuration information in step S410 may refer back to the description in Embodiment 1. As mentioned above, the first configuration information may include cell configuration information and / or location information of the first cell for determining the first signal. The resource configuration information is used to indicate the first resource, i.e., the first time-domain resource and the first frequency-domain resource mentioned above. The first resource is used for the first terminal device to send the first signal and for the second network device to receive the first signal.

[0192] Step S425, the first network device sends the first configuration information and / or resource configuration information to the first terminal device.

[0193] Step S425 may refer to step S225 in Embodiment 1. Correspondingly, the first terminal device receives the first configuration information and / or resource configuration information from the first network device.

[0194] Optionally, the communication method 400 may further include step S427, where the first network device sends third indication information to the first terminal device.

[0195] Step S427 may refer to step S227 in Embodiment 1, and the third indication information may refer back to the description in Embodiment 1. Correspondingly, the first terminal device receives the third indication information from the first network device. Specifically, the third indication information is used to indicate that the first terminal device sends the first signal in the first time-domain resource and the first frequency-domain resource, for example, to trigger the first terminal device to send the first signal. The first signal is used to indicate the sending or receiving of a second signal between the first network device and the first terminal device in the second time-domain resource and the second frequency-domain resource.

[0196] Figure 5 A schematic diagram showing the time-domain resource for sending the third indication information is presented. The third indication information may be the first information sent by the first network device, such as DCI, or the third indication information may be carried in the first information. As Figure 5 shown, the first network device may schedule the second signal through the first information. After receiving the first information sent by the first network device, the first terminal device sends the first signal in the first time-domain resource and the first frequency-domain resource. In Figure 5 the embodiment shown, the first network device sends the second signal to the first terminal device in the second time-domain resource and the second frequency-domain resource. Correspondingly, the first terminal device receives the first signal from the first network device in the second time-domain resource and the second frequency-domain resource.

[0197] As Figure 5As shown in (a) therein, the first time-domain resource and the second time-domain resource may be continuous, and the transmission or reception of the first information and the transmission or reception of the first signal may also be continuous. Or rather, the first information is used to trigger the transmission of the first signal on the first time-domain resource and the first frequency-domain resource. As Figure 5 As shown in (b) therein, the end time of the first time-domain resource and the start time of the second time-domain resource may be separated by at least one time unit, such as one symbol or one time slot. Optionally, the end time of the first information and the start time of the first signal may also be separated by at least one time unit.

[0198] Optionally, the first time-domain resource may include one or more first time units, and the first time unit may be a symbol (such as an OFDM symbol). The first time unit may also be other time units, which are not limited in this patent.

[0199] Optionally, the second time-domain resource may be a scheduling time period for one reception or transmission of the second signal. Taking the second signal as the PDSCH / PUSCH signal as an example, if the scheduling time-domain resource of the PDSCH / PUSCH signal is symbols L to L+K within the first time slot, then the second time-domain resource is symbols L to L+K within the first time slot.

[0200] Optionally, the second time-domain resource may be a predefined or preconfigured time window, within which one or more transmissions or receptions of the first signal may be performed. For example, the time window may include one or more second time units, and the second time unit may be a time slot, a symbol, or ms. For another example, if the time window includes J time slots and the second signal is the PDSCH signal, then one transmission or reception of the PDSCH signal occurs within 1 time slot, and at most J transmissions or receptions of the first signal may be performed within the time window.

[0201] The embodiments of the first time-domain resource and the second time-domain resource will be introduced in detail below and will not be elaborated here.

[0202] Step S440, the first terminal device determines the first signal.

[0203] Step S440 may refer to step S240 in Embodiment 1, and the first signal in step S440 may refer back to the description in Embodiment 1. Specifically, the first terminal device determines the first signal according to the received first configuration information and / or resource configuration information. The first signal is used to indicate the existence of the transmission or reception of the second signal between the first network device and the first terminal device on the second time-domain resource and the second frequency-domain resource.

[0204] Step S450, the first terminal device transmits the first signal on the first time-domain resource and the first frequency-domain resource.

[0205] Step S450 may refer to step S250 in Embodiment 1. Optionally, the second network device may receive a first signal from the first terminal device in the second cell on the first time-domain resource and the first frequency-domain resource.

[0206] Optionally, the communication method 400 may further include step S470, where the first terminal device sends or receives a second signal on the second time-domain resource and the second frequency-domain resource. Or rather, there is a need for sending or receiving a second signal in the first cell on the second time-domain resource and the second frequency-domain resource for the first terminal device. Correspondingly, the first network device may receive or send the second signal on the second time-domain resource and the second frequency-domain resource. Step S470 may refer to step S270 in Embodiment 1.

[0207] Embodiment 3:

[0208] Figure 6 Shows an interaction flowchart of a communication method 500. As Figure 3 shown, the second network device may not establish a communication connection with the first terminal device, or rather, the second network device does not serve the first terminal device. As Figure 6 shown, the communication method 500 includes steps S550 to S560.

[0209] Step S550, the first terminal device sends a first signal on the first time-domain resource and the first frequency-domain resource.

[0210] Step S550 may refer to step S250 in Embodiment 1. Correspondingly, the second network device receives the first signal from the first terminal device on the first time-domain resource and the first frequency-domain resource, and the first signal is used to indicate that there is a need for sending or receiving a second signal in the first cell on the second time-domain resource and the second frequency-domain resource. In the embodiments of the present application, the first terminal device and the second network device send and receive signals through the air interface. Compared with the information interaction between cell sites, the time delay of information interaction through the air interface is shorter.

[0211] Step S560, the second network device determines the signal sending or receiving between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource according to the first signal.

[0212] Step S560 may refer to step S260 in Embodiment 1. Specifically, after receiving the first signal on the first time-domain resource and the first frequency-domain resource, the second network device determines signal transmission or reception between the second network device and the second terminal device according to the second time-domain resource and the second frequency-domain resource indicated in the first signal. The second cell may include the second terminal device that causes interference to the transmission or reception of the second signal in the first cell, and the third signal transmitted or received by the second terminal device in the second cell will cause interference to the second signal.

[0213] Embodiment 4:

[0214] Figure 7 An interaction flowchart of communication method 600 is shown, where communication method 600 is an interaction process between a second network device and a second terminal device. Communication method 600 occurs after Figure 2 step S250 shown or Figure 6 S550 shown, that is, a specific implementation manner of step 560 executed after the second network device receives the first signal on the first time-domain resource. As Figure 7 shown, communication method 600 includes step S660 to step S680.

[0215] Step S660, the second network device determines signal transmission or reception between the second network device and the second terminal device according to the first signal on the second time-domain resource and the second frequency-domain resource.

[0216] Specifically, as Figure 6 shown, step S660 may be any one of step S661, step S664, and step S667. In other words, any one of step S661, step S664, and step S667 can be used to replace step S660 or step S260 in the above text.

[0217] Step S661, the second network device sends first indication information to the second terminal device.

[0218] Specifically, the first indication information is used to instruct the second terminal device to stop or cancel signal transmission or reception of the third signal in the second cell on the second time-domain resource and the second frequency-domain resource, that is, there is a need for signal transmission or reception of the third signal before the transmission or reception of the second signal by the second terminal device. The specific solution of the first indication information can refer back to the description in Embodiment 1.

[0219] Correspondingly, the second terminal device receives the first indication information from the second network device.

[0220] Furthermore, in step S670, the second terminal device stops or cancels the transmission or reception of the third signal on the second time-domain resource and the second frequency-domain resource according to the first indication information.

[0221] In step S664, the second network device sends second indication information to the second terminal device.

[0222] Specifically, the second indication information is used to instruct the second terminal device to adjust the spatial transmission configuration of the third signal in the second cell on the second time-domain resource and the second frequency-domain resource. The specific solution of the second indication information can refer to the description in Embodiment 1.

[0223] Correspondingly, the second terminal device receives the second indication information from the second network device.

[0224] Furthermore, in step S680, the second terminal device adjusts the spatial transmission configuration of the third signal in the second cell according to the second indication information. Optionally, the spatial transmission configuration may include a precoding matrix of the third signal, or a spatial filter, or a beam, etc.

[0225] In step S667, the second network device sends fourth indication information to the second terminal device.

[0226] Specifically, the fourth indication information is used to instruct the second terminal device not to perform signal transmission or reception in the second cell on the second time-domain resource and the second frequency-domain resource. The specific solution of the fourth indication information can refer to the description in Embodiment 1.

[0227] Correspondingly, the second terminal device receives the fourth indication information from the second network device. Furthermore, the second terminal device does not perform signal transmission or reception in the second cell on the second time-domain resource and the second frequency-domain resource according to the fourth indication information.

[0228] In the communication method of the present application, when the first terminal device has a need to send or receive a second signal, the first terminal device can first send a first signal, so that communication devices in other cells that cause interference to the first cell, such as the second network device, can identify the need to send or receive the second signal according to the first signal, and adjust the signal transmission or reception in their respective cells to achieve interference avoidance and ensure that the data transmission or reception of the second signal is not interfered. Moreover, in the scenario of air-to-air communication in air communication, information is exchanged between communication devices through the air interface, and the time delay is shorter.

[0229] Next, the implementation manners of the first frequency-domain resource and the second frequency-domain resource in Communication Method 200 will be specifically introduced in combination with Embodiments 5 and 6.

[0230] Embodiment 5:

[0231] Figure 8A schematic diagram showing a first frequency-domain resource and a second frequency-domain resource applicable to Embodiment 5 is shown. In an embodiment of the present application, Figure 3 The first cell shown may include a first transmission bandwidth, and the first transmission bandwidth may be all or part of the frequency-domain resources of the first cell. For example, if the total frequency-domain resources of the first cell are 20 resource blocks, the first transmission bandwidth may include these 20 resource blocks. Among them, the frequency-domain resources of the first transmission bandwidth may include K first frequency-domain resource grids, for example, these K first frequency-domain resource grids may be Figure 8 The first frequency-domain resource grids #1 to #5 shown. By dividing the first frequency-domain resource grids, the first transmission bandwidth is divided into K non-overlapping frequency-domain resources.

[0232] Exemplarily, the first transmission bandwidth may include 20 resource blocks (RB), numbered RB#0 to 19. These 20 resource blocks may be divided into 5 first frequency-domain resource grids, numbered Figure 8 The first frequency-domain resource grids #1 to #5 shown, and each first frequency-domain resource grid includes 4 RBs, that is, the first frequency-domain resource grid #1 includes RB#0 to 3, the first frequency-domain resource grid #2 includes RB#4 to 7, and so on.

[0233] In step S250, the first terminal device sends a first signal on the first time-domain resource and the first frequency-domain resource. Among them, the first frequency-domain resource may be M of the above K first frequency-domain resource grids, where M is a positive integer less than or equal to K. In other words, the first terminal device sends a first signal on the first time-domain resource and the frequency-domain resources of M of the above K first frequency-domain resource grids. As Figure 8 shown, these M first frequency-domain resource grids may be the first frequency-domain resource grid #1 and the first frequency-domain resource grid #2. In some other embodiments of the present application, these M first frequency-domain resource grids may also be multiple discontinuous first frequency-domain resource grids, such as the first frequency-domain resource grid #1 and the first frequency-domain resource grid #3.

[0234] The first signal is used to indicate the sending or receiving of a second signal of the first cell on a second time-domain resource and a second frequency-domain resource. Among them, the second frequency-domain resource may include N of the M first frequency-domain resource grids, and N is less than or equal to M. For example, as Figure 8As shown, the frequency range of the second frequency-domain resource may be the same as that of the first frequency-domain resource, that is, the second frequency-domain resource is the first frequency-domain resource grid #1 and the first frequency-domain resource grid #2. For another example, the frequency range of the second frequency-domain resource may be a part of the first frequency-domain resource, that is, it includes N of the first frequency-domain resource grids in the first frequency-domain resource. Embodiment 6 later will introduce the solution where N is less than M, which will not be elaborated here.

[0235] It should be understood that for the first terminal device in step S250, the first frequency-domain resource grid is used as the scheduling granularity for the second signal. In other words, the first network device schedules the second frequency-domain resource (i.e., the frequency-domain resource included in N first frequency-domain resource grids) for the first terminal device with one first frequency-domain resource grid as the granularity to send or receive the second signal.

[0236] Furthermore, the first frequency-domain resource grid is the transmission granularity for the first signal. In other words, the first network device transmits the first signal on the first frequency-domain resource (i.e., the frequency-domain resource included in M first frequency-domain resource grids) with one first frequency-domain resource grid as the granularity.

[0237] Correspondingly, for the second network device in step S260, the first frequency-domain resource grid is used as the detection granularity for the first signal. In other words, the second network device detects the first signal on each of the M first frequency-domain resource grids with one first frequency-domain resource grid as the granularity. Or, the first signal is a set of M signals detected by the second network device on the M first frequency-domain resource grids with one first frequency-domain resource grid as the granularity. The second network device receives or detects the first signal on the first time-domain resource and the first frequency-domain resource, and then in step S260, determines the signal transmission or reception between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource.

[0238] As Figure 8 shown, the first terminal device can learn that the second network device detects the first signal with the first frequency-domain grid as the granularity, then the first terminal device can also send the first signal on the first time-domain resource and the first frequency-domain resource grids #1 and #2 with the first frequency-domain resource grid as the granularity; at the same time, the first network device schedules the first terminal device to send or receive the second signal on the second time-domain resource and the first frequency-domain resource grids #1 and #2 with the first frequency-domain resource grid as the scheduling granularity; the second network device detects the first signal on the first time-domain resource and the first frequency-domain resource grids #1 to #5 with the first frequency-domain resource grid as the detection granularity. If the second network device detects the first signal on the first time-domain resource and the first frequency-domain resource grids #1 and #2, then the second network device learns that the first network device has sent or received the second signal on the second time-domain resource and the first frequency-domain resource grids #1 and #2.

[0239] Optionally, the first frequency-domain resource grid is the generation granularity of the first signal. In other words, the first signal is a set of M signals generated by the first terminal device with one first frequency-domain resource grid as the granularity on M first frequency-domain resource grids. As Figure 8 shown, the first signal is a set of two signals generated by the first terminal device on the first frequency-domain resource grid #1 and the first frequency-domain resource grid #2.

[0240] Embodiment 6:

[0241] Figure 9 A schematic diagram of the first frequency-domain resource and the second frequency-domain resource applicable to Embodiment 6 is shown. Similar to Embodiment 5, in the embodiments of the present application, Figure 3 the first cell shown may include a first transmission bandwidth, and the first transmission bandwidth may be all or part of the frequency-domain resources of the first cell. For example, if the total frequency-domain resources of the first cell are 20 resource blocks, the first transmission bandwidth may include these 20 resource blocks. Among them, the frequency-domain resources of the first transmission bandwidth may include K first frequency-domain resource grids (resource grid), for example, these K first frequency-domain resource grids may be Figure 8 the first frequency-domain resource grid #1 to the first frequency-domain resource grid #5 shown, and each first frequency-domain resource grid may include one or more RBs.

[0242] In Embodiment 6, the first transmission bandwidth may also be divided into X second frequency-domain resource grids. As Figure 9 shown in (a) of [], the second frequency-domain resource grid may be a different division method from the first frequency-domain resource grid, that is, Figure 9 the second frequency-domain resource grid #1 to the second frequency-domain resource grid #5 shown in (a) of []. As Figure 9 shown in (b) of [], the second frequency-domain resource grid may be further divided based on the first frequency-domain resource grid. For example, Figure 9 the frequency-domain resources of the first frequency-domain resource grid shown in (b) of [] are further divided into two second frequency-domain resource grids. By dividing the second frequency-domain resource grid, the first transmission bandwidth is divided into X non-overlapping frequency-domain resources again.

[0243] Similar to the description of the above Embodiment 5, in step S250, the first terminal device sends a first signal on the first time-domain resource and the first frequency-domain resource, where the first frequency-domain resource may be M of the above K first frequency-domain resource grids. As Figure 9As shown, the M first frequency-domain resource grids may be the first frequency-domain resource grid #1 and the first frequency-domain resource grid #2. In some other embodiments of the present application, the M first frequency-domain resource grids may also be discontinuous multiple first frequency-domain resource grids, such as the first frequency-domain resource grid #1 and the first frequency-domain resource grid #3.

[0244] The first signal is used to indicate the transmission or reception of the second signal of the first cell on the second time-domain resource and the second frequency-domain resource. Among them, the second frequency-domain resource may include L of the X second frequency-domain resource grids, and L is less than or equal to X. For example, as shown in (a) of [], the frequency range of the second frequency-domain resource may be the second frequency-domain resource grid #1 and the second frequency-domain resource grid #2; as shown in (b) of [], when the second frequency-domain resource grid is a further division of the first frequency-domain resource grid, the frequency range of the second frequency-domain resource may be part or all of the frequency ranges of the M first frequency-domain resources. For example, the second frequency-domain resource may be the second frequency-domain resource grid #1, the second frequency-domain resource grid #3, and the second frequency-domain resource grid #4. Or rather, the second frequency-domain resource is part of the frequency domain of the first frequency-domain resource grid #1 and all of the frequency domain of the first frequency-domain resource grid #2, that is, the second frequency-domain resource described in Embodiment 5 may include N of the M first frequency-domain resource grids (including the first frequency-domain resource grid #2 shown in (b) of []). Figure 9 As shown in (a) of [], the frequency range of the second frequency-domain resource may be the second frequency-domain resource grid #1 and the second frequency-domain resource grid #2; Figure 9 As shown in (b) of [], when the second frequency-domain resource grid is a further division of the first frequency-domain resource grid, the frequency range of the second frequency-domain resource may be part or all of the frequency ranges of the M first frequency-domain resources. For example, the second frequency-domain resource may be the second frequency-domain resource grid #1, the second frequency-domain resource grid #3, and the second frequency-domain resource grid #4. Or rather, the second frequency-domain resource is part of the frequency domain of the first frequency-domain resource grid #1 and all of the frequency domain of the first frequency-domain resource grid #2, that is, the second frequency-domain resource described in Embodiment 5 may include N of the M first frequency-domain resource grids (including the first frequency-domain resource grid #2 shown in (b) of []). Figure 9 As shown in (b) of [] (including the first frequency-domain resource grid #2).

[0245] It should be understood that for the first terminal device in step S250, the second frequency-domain resource grid is the scheduling granularity of the second signal. In other words, the first network device schedules the second frequency-domain resource (that is, the frequency resources included in the L second frequency-domain resource grids) for the first terminal device in units of one second frequency-domain resource grid to send the second signal.

[0246] The first frequency-domain resource grid is the transmission granularity of the first signal. In other words, the first network device sends the first signal on the first frequency-domain resource (that is, the frequency resources included in the M first frequency-domain resource grids) in units of one first frequency-domain resource grid.

[0247] Correspondingly, for the second network device in step S260, the first frequency-domain resource grid is used as the detection granularity of the first signal. In other words, the second network device detects the first signal on each of the M first frequency-domain resource grids with one first frequency-domain resource grid as the granularity. Alternatively, the first signal is a set of M signals detected by the second network device on M first frequency-domain resource grids with one first frequency-domain resource grid as the granularity. The second network device receives or detects the first signal on the first time-domain resource and the first frequency-domain resource, and then determines the signal transmission or reception between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource in step S260.

[0248] As Figure 9 shown in (a) of , the first terminal device can learn that the second network device detects the first signal with the first frequency-domain grid as the granularity, so the first terminal device can also send the first signal on the first time-domain resource and the first frequency-domain resource grids #1 and #2 with the first frequency-domain resource grid as the granularity; at the same time, the first network device schedules the first terminal device to send or receive the second signal on the second time-domain resource and the second frequency-domain resource grids #1 and #2 with the second frequency-domain resource grid as the scheduling granularity; the second network device detects the first signal on the first time-domain resource and the first frequency-domain resource grids #1 to #5 with the first frequency-domain resource grid as the detection granularity. If the second network device detects the first signal on the first time-domain resource and the first frequency-domain resource grids #1 and #2, the second network device learns that the first network device has sent or received the second signal on the second time-domain resource and the second frequency-domain resource grids #1 and #2.

[0249] As Figure 9 shown in (b) of , the first terminal device can learn that the second network device detects the first signal with the first frequency-domain grid as the granularity, so the first terminal device can also send the first signal on the first time-domain resource and the first frequency-domain resource grids #1 and #2 with the first frequency-domain resource grid as the granularity; at the same time, the first network device schedules the first terminal device to send or receive the second signal on the second time-domain resource and the second frequency-domain resource grids #1, #3, and #4 with the second frequency-domain resource grid as the scheduling granularity; the second network device detects the first signal on the first time-domain resource and the first frequency-domain resource grids #1 to #5 with the first frequency-domain resource grid as the detection granularity. If the second network device detects the first signal on the first time-domain resource and the first frequency-domain resource grids #1 and #2, the second network device learns that the first network device has sent or received the second signal on the second time-domain resource and the second frequency-domain resource grids #1, #3, and #4.

[0250] Optionally, the first frequency-domain resource grid is the generation granularity of the first signal. In other words, the first signal is a set of M signals generated by the first terminal device with one first frequency-domain resource grid as the granularity on M first frequency-domain resource grids. As Figure 9 shown, the first signal is a set of two signals generated by the first terminal device on the first frequency-domain resource grid #1 and the first frequency-domain resource grid #2.

[0251] Optionally, in step 260, different types of first signals carried on one first frequency-domain resource grid have a corresponding relationship with different numbers of second frequency-domain resource grids. Table 1 shows a corresponding relationship existing in the first frequency-domain resource grid #1. For example, in Figure 9 the scenario shown, one first frequency-domain resource grid can correspond to multiple types of first signals, where the multiple types of first signals are respectively used to indicate the transmission or reception of second signals on different numbers of second frequency-domain resource grids. The second network device determines the frequency range of the second frequency-domain resource or which second frequency-domain resource grids the second frequency-domain resource includes based on the types of the first signals received on the first time-domain resource and the first frequency-domain resource.

[0252] Table 1

[0253]

[0254]

[0255] As shown in Table 1, the types of the first signals include three types from 0 to 2, respectively indicating the transmission or reception of second signals on different numbers of second frequency-domain resource grids. For example, when the second network device receives the first signal 0 on the first frequency-domain resource grid #1, it means that the second signal is transmitted or received on the second frequency-domain resource grid #0, or it is determined that the second frequency-domain resource includes the second frequency-domain resource grid #0 but does not include the second frequency-domain resource grid #1; similarly, when the second network device receives the first signal 1 on the first frequency-domain resource grid #1, the second signals are transmitted or received on the second frequency-domain resource grids #0 and #1, or it is determined that the second frequency-domain resource includes the second frequency-domain resource grids #0 and #1.

[0256] Similarly, the first frequency-domain resource grids #2 to #5 can all include the corresponding relationship shown in Table 1. Further, the second network device can determine the second frequency-domain resource grids where the second signals are transmitted or received in each first frequency-domain resource grid based on the types of the first signals received on the first frequency-domain resource grids #2 to #5, and finally determine all the second frequency-domain resource grids included in the second frequency-domain resource.

[0257] It should be noted that Examples 5 and 6 are only examples. The embodiments of the present application may include more first frequency-domain resource grids and second frequency-domain resource grids, and the present application does not limit the division of the first frequency-domain resource grid and the second frequency-domain resource grid.

[0258] The following specifically introduces the implementation manners of the first time-domain resource and the second time-domain resource in the communication method 200 in conjunction with Example 7.

[0259] Example 7:

[0260] In Example 7, the first time-domain resource and the second time-domain resource may be included in one time unit, and the first time-domain resource is located before the second time-domain resource. Optionally, the one time unit may further include Figure 5 the third time-domain resource shown in the figure. The third time-domain resource is located before the first time-domain resource and is the time period for the first network device to send the third indication information or for the first terminal device to receive the third indication information. The third indication information may be the first information such as DCI for scheduling the transmission or reception of the second signal, or may be carried in the first information. Figure 10 FIG. shows a schematic diagram of Example 7 when the time unit is a time slot.

[0261] As Figure 10 shown in (a) of the figure, when the second signal is an uplink signal, the first signal is also an uplink signal. The first time-domain resource and the second time-domain resource occupy 14 symbols in a time slot. Among them, the position of the first time-domain resource in the time slot may be predefined. For example, the first OFDM symbol in the predefined time slot is the first time-domain resource, and the position of the second time-domain resource in the time slot is the second to the fourteenth OFDM symbols in the time slot.

[0262] As Figure 10 shown in (b) of the figure, when the second signal is a downlink signal, the first signal is an uplink signal. The first time-domain resource and the second time-domain resource occupy 14 symbols in a time slot. Among them, the position of the first time-domain resource in the time slot may be predefined. For example, the first OFDM symbol in the predefined time slot is the first time-domain resource, and the position of the second time-domain resource in the time slot is the second to the fourteenth OFDM symbols in the time slot.

[0263] As Figure 10As shown in (c) thereof, a third time-domain resource may further be included in this time slot. When the second signal is a downlink signal, the first signal is an uplink signal, and the third indication information of the third time-domain resource may be carried in the downlink signal. The third time-domain resource, the first time-domain resource, and the second time-domain resource occupy 14 symbols in a time slot. Among them, the position of the first time-domain resource in the time slot may be predefined. For example, the second OFDM symbol in the predefined time slot is the first time-domain resource, the position of the third time-domain resource in the time slot is the first OFDM symbol, and the position of the second time-domain resource in the time slot is the third to fourteenth OFDM symbols in the time slot.

[0264] Such as Figure 10 As shown in (d) thereof, a third time-domain resource may further be included in this time slot. When the second signal is an uplink signal, the first signal is also an uplink signal, and the third indication information of the third time-domain resource may be carried in the downlink signal. The third time-domain resource, the first time-domain resource, and the second time-domain resource occupy 14 symbols in a time slot. Among them, the position of the first time-domain resource in the time slot may be the second OFDM symbol, the position of the third time-domain resource in the time slot is the first OFDM symbol, and the position of the second time-domain resource in the time slot is the third to fourteenth OFDM symbols in the time slot.

[0265] It should be noted that Figure 10 The time slot shown is only an example, and there may be one or more OFDM symbols between the first time-domain resource and the third time-domain resource or between the first time-domain resource and the second time-domain resource.

[0266] In some other embodiments of the present application, the first time-domain resource may be included in the second time unit, and the second time-domain resource may include one or more time units, and the one or more time units may include the second time unit. Figure 11 The figure shows a schematic diagram of another implementation manner of the first time-domain resource and the second time-domain resource. Such as Figure 11As shown, the position of the first time-domain resource in a time slot can be predefined. For example, the position of the first time-domain resource in a time slot is predefined as the first OFDM symbol in time slot 1. The second time-domain resource can include the second to the fourteenth OFDM symbols in time slot 1 and all OFDM symbols in time slot 2. It should be understood that in this way, the second network device can determine whether there is a transmission or reception of a second signal on multiple subsequent time slots by receiving the first signal in the time unit in time slot 1. It should be understood that as the second time-domain resource is lengthened, the time-domain overhead of the first signal gradually decreases. For example, within 20 time slots, if the length of the second time-domain resource is 5 time slots, that is, there are 4 second time-domain resources within 20 time slots, then 4 first time-domain resources are required to transmit the first signal; if the length of the second time-domain resource is 10 time slots, that is, there are 2 second time-domain resources within 20 time slots, then only 2 first time-domain resources are required to transmit the first signal.

[0267] Finally, the device embodiments of this application are introduced.

[0268] To implement each function in the method provided by this application, a communication device such as a terminal device or a network device can include a hardware structure and / or a software module, and implement the above functions in the form of a hardware structure, a software module, or a combination of a hardware structure and a software module. Whether a certain function among the above functions is executed in the form of a hardware structure, a software module, or a combination of a hardware structure and a software module depends on the specific application and design constraints of the technical solution.

[0269] Figure 12 It is a schematic block diagram of a communication device 1200 according to an embodiment of this application. The communication device 1200 includes a processor 1210 and a communication interface 1220, and the processor 1210 and the communication interface 1220 can be connected to each other through a bus 1230. The communication device 1200 can be a network device or a terminal device such as 200, 400, 500, and 600 that executes the communication method.

[0270] Optionally, the communication device 1200 may further include a memory 1240. The memory 1240 includes but is not limited to a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), or a compact disc read-only memory (CD-ROM), and the memory 1240 is used to store relevant instructions and data.

[0271] The processor 1210 may be one or more central processing units (CPUs). When the processor 1210 is a single CPU, it may be a single-core CPU or a multi-core CPU.

[0272] When the communication device 1200 is a first network device, exemplarily, the communication device 1200 is used to perform the following operations: sending first configuration information and / or resource configuration information.

[0273] When the communication device 1200 is a second network device, exemplarily, the communication device 1200 is used to perform the following operations: determining, according to the first signal, signal transmission or reception between the second network device and the second terminal device on a second time-domain resource and a second frequency-domain resource.

[0274] When the communication device 1200 is a first terminal device, exemplarily, the communication device 1200 is used to perform the following operations: sending a first signal on a first time-domain resource and a first frequency-domain resource.

[0275] The above content is only an exemplary description. When the communication device 1200 is a first network device, a second network device, or a first terminal device, it will be responsible for performing the methods or steps related to the first network device, the second network device, or the first terminal device in the foregoing method embodiments.

[0276] The above description is only an exemplary description. For specific content, reference may be made to the content shown in the foregoing method embodiments. Figure 12 The implementation of each operation may also correspondingly refer to Figure 2 、 Figure 4 、 Figure 6 and Figure 7 the corresponding descriptions of the method embodiments shown.

[0277] Figure 13 FIG. is a schematic block diagram of a communication device 1300 according to an embodiment of the present application. The communication device 1300 may be a first network device, a second network device, or a first terminal device, etc., or may be a chip or module in a device such as a first network device, a second network device, or a first terminal device, and is used to implement the methods involved in the foregoing embodiments. The communication device 1300 includes a transceiver unit 1310 and a processing unit 1320. The transceiver unit 1310 and the processing unit 1320 are exemplarily introduced below.

[0278] The transceiver unit 1310 may include a sending unit and a receiving unit. The sending unit is used to perform the sending actions of the communication device, and the receiving unit is used to perform the receiving actions of the communication device. For ease of description, in the embodiments of the present application, the sending unit and the receiving unit are combined into one transceiver unit. This is uniformly explained here and will not be repeated later.

[0279] When the communication device 1300 is the first network device, exemplarily, the transceiver unit 1310 is used to send the first configuration information and / or resource configuration information.

[0280] When the communication device 1300 is the second network device, exemplarily, the transceiver unit 1310 is used to receive a first signal on a first time-domain resource and a first frequency-domain resource, etc., and the processing unit 1320 is used to determine, based on the first signal, signal transmission or reception, etc. between a second network device and a second terminal device on a second time-domain resource and a second frequency-domain resource.

[0281] When the communication device 1300 is the first terminal device, exemplarily, the transceiver unit 1310 is used to send a first signal, etc. on a first time-domain resource and a first frequency-domain resource.

[0282] The foregoing content is only an exemplary description. When the communication device 1300 is the first network device, the second network device, or the first terminal device, it will be responsible for executing the methods or steps related to the first network device, the second network device, or the first terminal device in the foregoing method embodiments.

[0283] Optionally, the communication device 1300 further includes a storage unit 1330, and the storage unit 1330 is used to store a program or code for executing the foregoing method.

[0284] Figure 12 and Figure 13 The illustrated device embodiment is used to implement Figure 2 , Figure 4 , Figure 6 and Figure 7 the content described above. Figure 12 and Figure 13 For the specific execution steps and methods of the illustrated device, reference may be made to the content described in the foregoing method embodiments.

[0285] Figure 14 is a schematic block diagram of the communication device 1400 according to an embodiment of the present application. The communication device 1400 is used to implement the functions of the first network device, the second network device, or the first terminal device. The communication device 1400 may be a chip in the first network device, the second network device, or the first terminal device.

[0286] The communication device 1400 includes: an input / output interface 1420 and a processor 1410. The input / output interface 1420 may be an input / output circuit. The processor 1410 may be a signal processor, a chip, or other integrated circuits that can implement the method of the present application. Among them, the input / output interface 1420 is used for input or output of signals or data.

[0287] For example, when the communication device 1400 is a first network device, the input / output interface 1420 is used to send the first configuration information and / or resource configuration information.

[0288] For example, the communication device 1400 is a second network device, and the input / output interface 1420 is used to receive a first signal on a first time-domain resource and a first frequency-domain resource. The processor 1410 is used to determine, based on the first signal, signal transmission or reception, etc. between a second network device and a second terminal device on a second time-domain resource and a second frequency-domain resource.

[0289] For example, when the communication device 1400 is a first terminal device, the input / output interface 1420 is used to send the first signal, etc. on a first time-domain resource and a first frequency-domain resource.

[0290] In a possible implementation, the processor 1410 executes instructions stored in the memory to implement the functions of a network device or a terminal device.

[0291] Optionally, the communication device 1400 further includes a memory.

[0292] Optionally, the processor and the memory are integrated together.

[0293] Optionally, the memory is outside the communication device 1400.

[0294] In a possible implementation, the processor 1410 may be a logic circuit, and the processor 1410 inputs / outputs messages or signaling through the input / output interface 1420. The logic circuit may be a signal processor, a chip, or other integrated circuits that can implement the method of the embodiments of the present application.

[0295] The above description of the communication device 1400 is only for exemplary purposes. The communication device 1400 can be used to execute the methods described in the foregoing embodiments. For specific content, reference can be made to the description of the foregoing method embodiments, which will not be repeated here.

[0296] The present application also provides a chip, including a processor, which is used to call and run instructions stored in the memory, so that a communication device installed with the chip executes the methods in the above examples.

[0297] The present application also provides a chip, including: an input interface, an output interface, and a processor. The input interface, the output interface, and the processor are connected through an internal connection path. The processor is used to execute code in the memory. When the code is executed, the processor is used to execute the methods in the above examples. Optionally, the chip further includes a memory, which is used to store computer programs or code.

[0298] The present application further provides a processor, which is used to be coupled with a memory and execute the methods and functions related to network devices or terminal devices in any one of the above embodiments.

[0299] The present application provides a computer program product containing instructions. When the computer program product runs on a computer, the methods of the foregoing embodiments can be implemented.

[0300] The present application further provides a computer program. When the computer program runs on a computer, the methods of the foregoing embodiments can be implemented.

[0301] The present application further provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a computer, the method described in the foregoing embodiment is implemented.

[0302] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0303] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0304] In several embodiments provided by the present application, the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods. For example, 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 displayed or discussed couplings, direct couplings, or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of devices or units can be electrical, mechanical, or other forms.

[0305] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place, or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the technical solution of the embodiments of the present application.

[0306] In addition, each functional unit in the embodiments of the present application may be integrated into one processing unit, may exist physically alone for each unit, or two or more units may be integrated into one unit.

[0307] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the embodiments of the present application, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of each method embodiment of the present application. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, ROM, RAM, magnetic disks, or optical discs that can store program codes.

[0308] The above is only the specific implementation manner of the present application, but the protection scope of the embodiments of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the technical field within the technical scope disclosed in the embodiments of the present application should be covered by the protection scope of the embodiments of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A communication method, characterized in that, An apparatus applied to a second network device or located in the second network device, comprising: Receiving a first signal sent by a first terminal device on a first time-domain resource and a first frequency-domain resource, where the first signal is used to indicate the transmission or reception of a second signal between a first network device and the first terminal device on a second time-domain resource and a second frequency-domain resource; Determining the signal transmission or reception between the second network device and a second terminal device on the second time-domain resource and the second frequency-domain resource according to the first signal.

2. The method according to claim 1, wherein The first signal is a reference signal.

3. The method according to claim 1 or 2, characterized in that, The frequency range of the first frequency-domain resource includes the frequency range of the second frequency-domain resource.

4. The method according to any one of claims 1 to 3, characterized in that, The first frequency-domain resource includes M first frequency-domain resource grids, and the second frequency-domain resource includes N first frequency-domain resource grids among the M first frequency-domain resource grids, where N is less than or equal to M.

5. The method according to claim 4, wherein The first frequency-domain resource grid is the detection granularity of the first signal and the scheduling granularity of the second signal.

6. The method according to claim 3, wherein The first frequency-domain resource includes M first frequency-domain resource grids, the second frequency-domain resource includes L second frequency-domain resource grids, the first frequency-domain resource grid is the detection granularity of the first signal, and the second frequency-domain resource grid is the scheduling granularity of the second signal.

7. The method according to claim 6, wherein Each of the M first frequency-domain resource grids includes a plurality of second frequency-domain resource grids.

8. The method according to claim 7, characterized in that There is a corresponding relationship between different types of the first signals carried on one first frequency-domain resource grid and different numbers of the second frequency-domain resource grids.

9. The method according to any one of claims 1 to 8, characterized in that, The determining of the signal transmission or reception between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource is specifically: Sending first indication information, where the first indication information is used to indicate stopping or canceling the signal transmission or reception between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource for a third signal.

10. The method according to any one of claims 1 to 8, characterized in that, The determining of the signal transmission or reception between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource is specifically: Sending second indication information, where the second indication information is used to indicate adjusting the spatial domain transmission configuration of a third signal between the second network device and the second terminal device on the second frequency-domain resource, and the spatial domain transmission configuration includes at least one of a precoding matrix, a spatial filter, or a beam of the third signal.

11. The method according to any one of claims 1 to 8, characterized in that, The determining of the signal transmission or reception between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource is specifically: Determining that there is no signal transmission or reception between the second network device and the second terminal device on the second time-domain resource and the second frequency-domain resource.

12. The method according to any one of claims 1 to 11, characterized in that, There is an interval of J time units between the end time of the first time-domain resource and the start time of the second time-domain resource, where J is a positive integer.

13. The method according to any one of claims 1 to 12, characterized in that, The first time-domain resource and the second time-domain resource are included in a first time unit; alternatively, the first time-domain resource is included in a second time unit, and the second time-domain resource includes a plurality of time units.

14. A communication method, characterized in that, Applied to a first terminal device or a device located in the first terminal device, including: Transmitting a first signal on a first time-domain resource and a first frequency-domain resource, where the first signal is used to indicate the transmission or reception of a second signal between a first network device and the first terminal device on a second time-domain resource and a second frequency-domain resource; Transmitting or receiving the second signal on the second time-domain resource and the second frequency-domain resource.

15. The method according to claim 14, wherein The method further includes: Receiving, on a third time-domain resource, third indication information sent by the first network device, where the third indication information is used to indicate that the first terminal device transmits the first signal on the first time-domain resource and the first frequency-domain resource, and the third time-domain resource is before the first time-domain resource.

16. The method according to claim 15, characterized in that, The third indication information is carried on a first piece of information, where the first piece of information is used to schedule the second signal; or the third indication information is further used to schedule the second signal.

17. The method according to any one of claims 14 to 16, characterized in that Within the second time-domain resource, the second frequency-domain resource is a frequency-domain resource on which the first terminal device does not expect to receive signals from other network devices other than the first network device; or within the second time-domain resource, the first terminal device does not expect to receive signals from other network devices other than the first network device on the second frequency-domain resource.

18. A communication method, characterized in that, Including: A first network device sends third indication information to a first terminal device, where the third indication information is used to indicate that the first terminal device transmits a first signal on a first time-domain resource and a first frequency-domain resource, and the first signal is used to indicate the transmission or reception of a second signal between the first network device and the first terminal device on a second time-domain resource and a second frequency-domain resource; The first terminal device transmits the first signal on the first time-domain resource and the first frequency-domain resource according to the third indication information; A second network device receives the first signal transmitted by the first terminal device on the first time-domain resource and the first frequency-domain resource, and determines the signal transmission or reception between the second network device and a second terminal device on the second time-domain resource and the second frequency-domain resource according to the first signal.

19. The method according to claim 18, wherein The first network device sending the third indication information to the first terminal device includes: The first network device sends the third indication information to the first terminal device on a third time-domain resource, and the third time-domain resource is before the first time-domain resource.

20. The method according to claim 18 or 19, characterized in that, The third indication information is carried on a first piece of information, where the first piece of information is used to schedule the second signal; or the third indication information is further used to schedule the second signal.

21. The method according to any one of claims 18 to 20, characterized in that, In the second time-domain resource, the second frequency-domain resource is a frequency-domain resource in which the first terminal device does not expect to receive signals from other network devices other than the first network device; or, in the second time-domain resource, the first terminal device does not expect to receive signals from other network devices other than the first network device on the second frequency-domain resource.

22. The method according to any one of claims 18 to 21, characterized in that, The determination by the second network device of signal transmission or reception between the second network device and the second terminal device in the second time-domain resource and the second frequency-domain resource is specifically as follows: The second network device sends first indication information, where the first indication information is used to indicate stopping or canceling signal transmission or reception of a third signal between the second network device and the second terminal device in the second time-domain resource and the second frequency-domain resource.

23. The method according to any one of claims 18 to 21, characterized in that The determination by the second network device of signal transmission or reception between the second network device and the second terminal device in the second time-domain resource and the second frequency-domain resource is specifically as follows: The second network device sends second indication information, where the second indication information is used to indicate adjusting the spatial domain transmission configuration of a third signal between the second network device and the second terminal device on the second frequency-domain resource, and the spatial domain transmission configuration includes at least one of a precoding matrix, a spatial filter, or a beam of the third signal.

24. The method according to any one of claims 18 to 21, characterized in that, The determination by the second network device of signal transmission or reception between the second network device and the second terminal device in the second time-domain resource and the second frequency-domain resource is specifically as follows: The second network device determines not to perform signal transmission or reception between the second network device and the second terminal device in the second time-domain resource and the second frequency-domain resource.

25. A communication device, characterized in that, Comprising: A processor, where the processor is configured to execute a program or instruction to cause the device to execute the method according to any one of claims 1 to 13.

26. A communication device, characterized in that, Comprising: A processor, where the processor is configured to execute a program or instruction to cause the device to execute the method according to any one of claims 14 to 17.

27. A communication system, characterized in that, Including the communication device according to claim 25 and the communication device according to claim 26.

28. A computer-readable storage medium, characterized in that, A computer program is stored on the computer-readable storage medium, and when the computer program runs on a computer, it causes the computer to execute the method according to any one of claims 1 to 13 or the method according to any one of claims 14 to 17.

29. A computer program product, characterized in that, Including computer program code, and when the computer program code runs, it implements the method according to any one of claims 1 to 13 or the method according to any one of claims 14 to 17.

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