Communication method and communication device

Abstract

Provided are a communication method and a communication device, the communication method comprising: receiving a first reference signal in a first time period, the first reference signal being used for indicating that there is transmission or reception of a first signal in a first cell within a second time period; and determining signal sending or receiving of a second cell in the second time period according to the first reference signal. According to the method provided by the embodiment of the invention, the first reference signal is firstly sent under the condition that the first signal sending or receiving requirement exists, so that the communication equipment with interference can identify the data sending requirement of the first signal, then interference avoidance is carried out, and the data transmission of the first signal is prevented from being interfered.

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, air signal transmission is mainly line-of-sight transmission, and the interference between cells will also be enhanced due to line-of-sight transmission. Therefore, in the air signal transmission scenario, 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 that can ensure that the data transmission of signals is free from interference.

[0005] In a first aspect, a communication method is provided. This method can be executed by a communication device such as a network device, or can also be executed by a module (such as a chip or a circuit) in a communication 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 communication device. This application does not make any limitations in this regard.

[0006] The method includes: receiving a first reference signal in a first time period, where the first reference signal is used to indicate the transmission or reception of a first signal in a first cell in a second time period; determining the signal transmission or reception of a second cell in the second time period according to the first reference signal.

[0007] Wherein, the second cell may be the cell to which the communication device executing the method in the first aspect belongs, or the cell served by the communication device. The first reference signal may be determined and sent by a communication device in the first cell, and then received or detected by the communication device executing the method in the first aspect. The communication device executing the method in the first aspect may be a network device such as a base station, or may also be other devices such as a core network device, etc.

[0008] It should be understood that the technical solution of the present application can be applied to the scenario of line-of-sight communication. Among them, communication using radio waves in the line-of-sight propagation mode for information transmission is line-of-sight communication. In line-of-sight communication, the wireless signal propagates linearly between the transmitting end and the receiving end without obstruction. Compared with traditional terrestrial communication, the attenuation of the wireless signal in line-of-sight communication is smaller, so the signal strength is greater and the signal coverage range is wider. Therefore, in the above-mentioned scenario of air signal transmission, more interference is caused to the cell serving the air UE.

[0009] Therefore, specifically, in the communication method shown in the first aspect, after receiving the first reference signal, determine or adjust the signal transmission or reception of the second cell within the second time period according to the existence of the transmission or reception of the first signal in the first cell indicated in the first reference signal, so as to avoid the signal in the second cell within the second time period from interfering with the transmission or reception of the first signal, thereby reducing the interference of inter-cell signal transmission.

[0010] Optionally, in the embodiments of the present application, the first signal or the second signal may be a physical downlink shared channel (PDSCH) signal, or may be a physical uplink shared channel (PUSCH) signal.

[0011] Through the above method, when a communication device in the first cell, such as a terminal device, has a need to transmit or receive a first signal, it can first transmit a first reference signal, so that communication devices in other cells that cause interference to the first cell can identify the need to transmit or receive the first signal according to the first reference signal, and adjust the signal transmission or reception in their respective cells to achieve interference avoidance and ensure that the data transmission of the first signal is not interfered.

[0012] In addition, the communication device that executes the method described in the first aspect may receive the first reference signal from an air device, that is, perform signal transmission and reception through the air interface, and the time delay is shorter compared with the information interaction between stations.

[0013] Combined with the first aspect, in some implementation manners of the first aspect, determining the signal transmission or reception of the second cell within the second time period includes: transmitting first indication information, where the first indication information is used to indicate to stop or cancel the signal transmission or reception of the second signal in the second cell within the second time period.

[0014] Exemplarily, if a communication device in the second cell, such as a terminal device, transmits or receives a second signal during a second time period, the communication device that executes the method described in the first aspect may send first indication information to the terminal device to instruct the terminal device to stop or cancel transmitting or receiving the second signal during the second time period. By stopping or canceling transmitting or receiving the second signal during the second time period, interference of the second signal in the second cell with the first signal in the first cell is avoided.

[0015] In combination with the first aspect, in some implementation manners of the first aspect, determining signal transmission or reception in the second cell during the second time period includes: sending second indication information, where the second indication information is used to instruct adjustment of the spatial domain transmission configuration of the second signal in the second cell, and the spatial domain transmission configuration includes at least one of a precoding matrix, a spatial filter, and a beam of the second signal.

[0016] Exemplarily, if a communication device in the second cell, such as a terminal device, transmits or receives a second signal during a second time period, the communication device that executes the method described in the first aspect may send second indication information to the terminal device to instruct the terminal device to adjust the spatial domain transmission configuration of the second signal in the second cell. By adjusting the spatial domain transmission configuration of the second signal in the second cell, interference of the second signal in the second cell with the first signal in the first cell is suppressed within a specific spatial range.

[0017] In combination with the first aspect, in some implementation manners of the first aspect, determining signal transmission or reception in the second cell during the second time period includes: determining that no signal transmission or reception is performed in the second cell during the second time period.

[0018] Furthermore, signal transmission or reception that causes interference to the first signal in the second cell during the second time period can be completely avoided.

[0019] In combination with the first aspect, in some implementation manners of the first aspect, before receiving the first reference signal in the first time period, the method further includes: determining first configuration information, where the first configuration information is used to determine the first reference signal, and the first configuration information includes cell configuration information and / or location information of the first cell.

[0020] Specifically, after determining the first configuration information, the communication device that executes the method described in the first aspect may determine the first reference signal to be received according to the first configuration information, or in other words, receive or detect the first reference signal according to the first configuration information.

[0021] In combination with the first aspect, in some implementation manners of the first aspect, the cell configuration information of the first cell includes a physical cell identifier of the first cell or sequence information of the first reference signal indicated by the first cell.

[0022] In combination with the first aspect, in some implementations of the first aspect, the location information includes Global Positioning System (GPS) information.

[0023] For example, in a predefined or preconfigured manner, it is defined that the communication device uses reference signal A within area A and uses reference signal B within a predefined or preconfigured area B. The communication device determines, based on the acquired location information, that it is currently within area A, and further determines that the first reference signal is reference signal A corresponding to area A.

[0024] In combination with the first aspect, in some implementations of the first aspect, before receiving the first reference signal in the first time period, the method further includes: determining resource configuration information, where the resource configuration information is used to indicate a first resource, and the first resource is used to send or receive the first reference signal, and the resource configuration information includes any one or any combination of the following: frequency-domain resource configuration information, time-domain resource configuration information, and code-domain resource configuration information.

[0025] Specifically, after determining the resource configuration information, the communication device that executes the method described in the first aspect can determine the first reference signal to be received according to the resource configuration information, or in other words, receive or detect the first reference signal according to the resource configuration information.

[0026] It should be understood that the above first configuration information and / or resource configuration information can be obtained from the above first cell or a communication device in the first cell, such as a network device, a terminal device, or a core network device, or can also be obtained from a communication device in other cells.

[0027] In combination with the first aspect, in some implementations of the first aspect, the second time period is after the first time period.

[0028] In combination with the first aspect, in some implementations of the first aspect, there are N time units between the end time of the first time period and the start time of the second time period, where N is a positive integer; or, the second time period is continuous with the first time period.

[0029] Optionally, the first time period may include one or more first time units, and the first time unit may be a symbol (such as an OFDM symbol).

[0030] Optionally, the second time period may be a scheduling time period for one transmission or reception of the first signal. Taking the first signal as a PDSCH signal as an example, if the scheduling time-domain resource of the PDSCH signal is symbols L to L + K within the first time slot, then the second time period is symbols L to L + K within the first time slot.

[0031] Optionally, the second time period 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 a millisecond. For another example, if the time window includes J time slots and the first signal is a 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.

[0032] In a second aspect, a communication method is provided. This method may be executed by a communication device such as a terminal device, or alternatively, may be executed by a module (such as a chip or a circuit) in the communication device, or further, may be executed by a logical node, a logical module, or software that can implement all or part of the functions of the communication device. This application does not make any limitations in this regard.

[0033] The method includes: within a first time period, sending a first reference signal in a first cell, where the first reference signal is used to indicate the existence of transmission or reception of a first signal in the first cell within a second time period.

[0034] Specifically, the first cell may be the cell to which the communication device executing the method in the second aspect belongs, or in other words, the cell serving the communication device. The existence of transmission or reception of the first signal may mean that the communication device transmits or receives the first signal within the second time period. In the embodiments of this application, the communication device executing the method in the second aspect may be a terminal device, such as an aerial terminal drone, a satellite, etc., or a terminal device on an airborne device.

[0035] The communication device executing the method in the second aspect may interact with the communication device executing the method in the first aspect through the air interface for the first reference signal, so that the communication device executing the method in the first aspect can learn about the existence of transmission or reception of the first signal, which has a shorter time delay compared to information interaction through the backhaul link (such as information interaction between network devices through the backhaul link).

[0036] Through the above method, in the case where a communication device such as a terminal device in the first cell has a need for transmission or reception of a first signal, the first reference signal may be sent first to inform communication devices in other cells that cause interference to the first cell to perform interference avoidance, so as to ensure that the data transmission of the first signal is free from interference.

[0037] In combination with the second aspect, in some implementation manners of the second aspect, the method further includes: within the second time period, transmitting or receiving the first signal in the first cell.

[0038] It should be understood that the communication device that sends the first reference signal and the communication device that sends or receives the first signal may be the same or different. For example, the communication device that executes the method described in the second aspect determines that there is another communication device in the first cell that sends or receives the first signal during the second time period, and then sends the first reference signal on behalf of it.

[0039] In combination with the second aspect, in some implementations of the second aspect, the method further includes: determining the first reference signal according to the first configuration information, where the first configuration information includes the cell configuration information and / or location information of the first cell.

[0040] In combination with the second aspect, in some implementations of the second aspect, the cell configuration information includes the physical cell identifier of the first cell or the sequence information of the first reference signal indicated by the first cell.

[0041] In combination with the second aspect, in some implementations of the second aspect, the location information includes Global Positioning System (GPS) information.

[0042] In combination with the second aspect, in some implementations of the second aspect, the method further includes: determining a first resource according to the resource configuration information, where the first resource is used to send or receive the first reference signal, and the resource configuration information includes any one or any combination of the following: frequency domain resource configuration information, time domain resource configuration information, and code domain resource configuration information.

[0043] The specific descriptions of the first configuration information and the resource configuration information can refer to the first aspect and will not be elaborated here.

[0044] In combination with the second aspect, in some implementations of the second aspect, the second time period is after the first time period.

[0045] In combination with the second aspect, in some implementations of the second aspect, there are N time units between the start time of the second time period and the end time of the first time period, where N is a positive integer; or, the second time period is continuous with the first time period.

[0046] The specific descriptions of the first time period and the second time period can refer to the first aspect and will not be elaborated here.

[0047] In combination with the second aspect, in some implementations of the second aspect, before sending the first reference signal in the first time period, the method further includes: obtaining third indication information, where the third indication information is used to indicate sending the first reference signal in the first time period.

[0048] Exemplarily, the third indication information can be used to trigger the transmission of a first reference signal in a first time period. For example, the end time of the third indication information can be the same moment as the start time of the first reference signal, and thus the third indication information directly triggers the transmission of the first reference signal.

[0049] In combination with the second aspect, in some implementation manners of the second aspect, the third indication information is a first downlink control information, and the first downlink control information is further used to schedule the first signal.

[0050] Specifically, after receiving the first downlink control information, it can be defaulted to first transmit the first reference signal, and then transmit or receive the first signal through the first downlink control information. Therefore, in addition to scheduling the first signal, the first downlink control information also has the function of indicating the transmission of the first reference signal.

[0051] In a third aspect, a communication method is provided. This method can be executed by a communication device such as a network device, or can be executed by a module (such as a chip or a circuit) in the communication 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 communication device. This application does not make any limitations in this regard.

[0052] The method includes: transmitting first configuration information and / or resource configuration information. The first configuration information includes cell configuration information and / or location information of a first cell. The first configuration information is used to determine a first reference signal, and the first reference signal is used to indicate the transmission or reception of a first signal in the first cell during a second time period. The resource configuration information is used to indicate a first resource, and the first resource is used to transmit or receive the first reference signal.

[0053] Specifically, the communication device that executes the method described in the third aspect can be a communication device such as a network device in the first cell, and is used to transmit the first configuration information and / or the resource configuration information to the communication device that executes the method described in the first aspect or the second aspect, so that the communication device that executes the method described in the first aspect or the second aspect can determine the first reference signal.

[0054] In combination with the third aspect, in some implementation manners of the third aspect, the cell configuration information of the first cell includes the physical cell identifier of the first cell or the sequence information of the first reference signal indicated by the first cell.

[0055] In combination with the third aspect, in some implementation manners of the third aspect, the location information includes Global Positioning System (GPS) information.

[0056] In combination with the third aspect, in some implementation manners of the third aspect, the resource configuration information includes any one or any combination of the following: frequency domain resource configuration information, time domain resource configuration information, and code domain resource configuration information.

[0057] In combination with the third aspect, in some implementations of the third aspect, the method further includes: sending third indication information for indicating to send the first reference signal in the first time period.

[0058] In combination with the third aspect, in some implementations of the third aspect, the third indication information is first downlink control information for scheduling the first signal.

[0059] 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.

[0060] Fourth aspect, there is provided a communication device, including: a transceiver unit, configured to receive a first reference signal in a first time period, where the first reference signal is used to indicate the transmission or reception of a first signal in a first cell in a second time period; and a processing unit, configured to determine the signal transmission or reception of a second cell in the second time period according to the first reference signal.

[0061] In combination with the fourth aspect, in some implementations of the fourth aspect, the transceiver unit is specifically configured to: send first indication information for indicating to stop or cancel the signal transmission or reception of a second signal in the second cell in the second time period.

[0062] In combination with the fourth aspect, in some implementations of the fourth aspect, the transceiver unit is specifically configured to: send second indication information for indicating to adjust the spatial domain transmission configuration of a second signal in the second cell, where the spatial domain transmission configuration includes at least one of a precoding matrix, a spatial filter, and a beam of the second signal.

[0063] In combination with the fourth aspect, in some implementations of the fourth aspect, the processing unit is specifically configured to: determine not to perform signal transmission or reception in the second cell in the second time period.

[0064] In combination with the fourth aspect, in some implementations of the fourth aspect, before the transceiver unit receives the first reference signal in the first time period, the processing unit is further configured to: determine first configuration information for determining the first reference signal, where the first configuration information includes cell configuration information and / or location information of the first cell.

[0065] In combination with the fourth aspect, in some implementations of the fourth aspect, the cell configuration information of the first cell includes a physical cell identifier of the first cell or sequence information of the first reference signal indicated by the first cell.

[0066] In combination with the fourth aspect, in some implementations of the fourth aspect, the location information includes Global Positioning System (GPS) information.

[0067] In combination with the fourth aspect, in some implementations of the fourth aspect, before the transceiver unit receives the first reference signal in the first time period, the processing unit is further configured to: determine resource configuration information, where the resource configuration information is used to indicate a first resource, and the first resource is used to transmit or receive the first reference signal, and the resource configuration information includes any one or any combination of the following: frequency-domain resource configuration information, time-domain resource configuration information, and code-domain resource configuration information.

[0068] In combination with the fourth aspect, in some implementations of the fourth aspect, the second time period is located after the first time period.

[0069] In combination with the fourth aspect, in some implementations of the fourth aspect, there is an interval of N time units between the end time of the first time period and the start time of the second time period, where N is a positive integer; or, the second time period is continuous with the first time period.

[0070] 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, and details are not described herein again.

[0071] Fifth aspect, a communication device is provided, and the device includes: a transceiver unit, configured to transmit the first reference signal in the first cell within the first time period, where the first reference signal is used to indicate the transmission or reception of a first signal in the first cell within the second time period.

[0072] In combination with the fifth aspect, in some implementations of the fifth aspect, the transceiver unit is further configured to: transmit or receive the first signal in the first cell within the second time period.

[0073] In combination with the fifth aspect, in some implementations of the fifth aspect, the processing unit is further configured to: determine the first reference signal according to first configuration information, where the first configuration information includes cell configuration information and / or location information of the first cell.

[0074] In combination with the fifth aspect, in some implementations of the fifth aspect, the cell configuration information includes the physical cell identifier of the first cell or the sequence information of the first reference signal indicated by the first cell.

[0075] In combination with the fifth aspect, in some implementations of the fifth aspect, the location information includes Global Positioning System (GPS) information.

[0076] In combination with the fifth aspect, in some implementations of the fifth aspect, the processing unit is further configured to: determine a first resource according to the resource configuration information, where the first resource is used to transmit or receive the first reference signal, and the resource configuration information includes any one or any combination of the following: frequency-domain resource configuration information, time-domain resource configuration information, and code-domain resource configuration information.

[0077] In combination with the fifth aspect, in some implementations of the fifth aspect, the second time period is after the first time period.

[0078] In combination with the fifth aspect, in some implementations of the fifth aspect, there are N time units between the start time of the second time period and the end time of the first time period, where N is a positive integer; or, the second time period is continuous with the first time period.

[0079] In combination with the fifth aspect, in some implementations of the fifth aspect, before the transceiver unit transmits the first reference signal in the first time period, the transceiver unit is further configured to: obtain third indication information, where the third indication information is used to indicate transmitting the first reference signal in the first time period.

[0080] In combination with the fifth aspect, in some implementations of the fifth aspect, the third indication information is a first downlink control information, and the first downlink control information is further used to schedule the first signal.

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

[0082] Sixth aspect, a communication device is provided, and the device includes: a transceiver unit, configured to: transmit the first configuration information and / or resource configuration information, where the first configuration information includes cell configuration information and / or location information of a first cell, the first configuration information is used to determine a first reference signal, the first reference signal is used to indicate the transmission or reception of a first signal in the first cell during a second time period, and the resource configuration information is used to indicate a first resource, and the first resource is used to transmit or receive the first reference signal.

[0083] In combination with the sixth aspect, in some implementations of the sixth aspect, the cell configuration information of the first cell includes a physical cell identifier of the first cell or sequence information of the first reference signal indicated by the first cell.

[0084] In combination with the sixth aspect, in some implementations of the sixth aspect, the location information includes Global Positioning System (GPS) information.

[0085] In combination with the sixth aspect, in some implementations of the sixth aspect, the resource configuration information includes any one or more of the following: frequency-domain resource configuration information, time-domain resource configuration information, and code-domain resource configuration information.

[0086] In combination with the sixth aspect, in some implementations of the sixth aspect, the transceiver unit is further configured to: send a third indication information, where the third indication information is used to indicate that the first reference signal is sent in the first time period.

[0087] In combination with the sixth aspect, in some implementations of the sixth aspect, the third indication information is a first downlink control information, and the first downlink control information is used to schedule the first signal.

[0088] For the explanations and beneficial effects of the communication device 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.

[0089] In a seventh aspect, a communication device is provided, including a processor, where the processor is configured to, by executing a computer program or instruction or through a logic circuit, cause the communication device to execute the method described in the first aspect and any possible implementation of the first aspect.

[0090] In a possible implementation, the communication device further includes a memory, which is used to store the computer program or instruction.

[0091] In a possible implementation, the communication device further includes a communication interface, which is used to input and / or output signals.

[0092] In an eighth aspect, a communication device is provided, including a processor, where the processor is configured to, by executing a computer program or instruction or through a logic circuit, cause the communication device to execute the method described in the second aspect and any possible implementation of the second aspect.

[0093] In a possible implementation, the communication device further includes a memory, which is used to store the computer program or instruction.

[0094] In a possible implementation, the communication device further includes a communication interface, which is used to input and / or output signals.

[0095] In a ninth aspect, a communication device is provided, including a processor, where the processor is configured to, by executing a computer program or instruction or through a logic circuit, cause the communication device to execute the method described in the third aspect and any possible implementation of the third aspect.

[0096] In a possible implementation, the communication device further includes a memory, which is used to store the computer program or instruction.

[0097] In one possible implementation, the communication device further includes a communication interface for inputting and / or outputting signals.

[0098] In a tenth aspect, a communication device is provided, including a logic circuit and an input / output interface. The input / output interface is for inputting and / or outputting signals, and the logic circuit is for executing the method described in the first aspect and any possible implementation of the first aspect; or, the logic circuit is for executing the method described in the second aspect and any possible implementation of the second aspect; the logic circuit is for executing the method described in the third aspect and any possible implementation of the third aspect.

[0099] In an eleventh 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 method described in the first aspect and any possible implementation of the first aspect is executed; or, the method described in the second aspect and any possible implementation of the second aspect is executed; the method described in the third aspect and any possible implementation of the third aspect is executed.

[0100] In a twelfth aspect, a computer program product is provided, including an instruction. When the instruction runs on a computer, the method described in the first aspect and any possible implementation of the first aspect is executed; or, the method described in the second aspect and any possible implementation of the second aspect is executed; the method described in the third aspect and any possible implementation of the third aspect is executed; or.

[0101] In a thirteenth aspect, a communication system is provided. The communication system includes the communication device described in the seventh aspect, the communication device described in the eighth aspect, and the communication device described in the ninth aspect.

[0102] For the description of the beneficial effects of the fourth aspect to the thirteenth aspect, reference can be made to the description of the first aspect to the third aspect. Description of the Drawings

[0103] Figure 1 is a schematic diagram of a network architecture provided by an embodiment of the present application.

[0104] Figure 2 is a schematic flowchart of a communication method provided by an embodiment of the present application.

[0105] Figure 3 is a schematic diagram of another network architecture provided by an embodiment of the present application.

[0106] Figure 4 is a schematic flowchart of another communication method provided by an embodiment of the present application.

[0107] Figure 5It is a schematic flowchart of sending the third indication information provided by an embodiment of the present application.

[0108] Figure 6 It is a schematic flowchart of another communication method provided by an embodiment of the present application.

[0109] Figure 7 It is a schematic flowchart of another communication method provided by an embodiment of the present application.

[0110] Figure 8 It is a schematic block diagram of a communication device provided by an embodiment of the present application.

[0111] Figure 9 It is a schematic block diagram of another communication device provided by an embodiment of the present application.

[0112] Figure 10 It is a schematic block diagram of another communication device provided by an embodiment of the present application. Detailed implementation manners

[0113] Next, the technical solutions in the present application will be described with reference to the accompanying drawings.

[0114] First, in combination with Figure 1 , the communication system and network architecture applicable to the embodiments of the present application will be introduced.

[0115] The technical solutions provided in 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 in this application can also be applied to future communication systems, such as the sixth-generation (6G) mobile communication system. The technical solutions provided in 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.

[0116] 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 the indication information and can transmit data through uplink feedback information. Or rather, there are downlink and uplink communication links in the communication system.

[0117] It should be understood that the embodiments of this application do not particularly limit the specific structure of the execution subject of the provided method. 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.

[0118] As an example, Figure 1 FIG. shows a schematic architecture diagram of a network architecture provided in the embodiments of this application. Exemplarily, the architecture may include terminal devices UE1 and UE2, and network devices.

[0119] 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.

[0120] 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.

[0121] The network device involved in the embodiments of the present application includes a base station (BS), which may 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 solutions 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 solutions provided in the embodiments of the present application are described.

[0122] 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 may send downlink data to the terminal devices UE1 and UE2, and at the same time, the terminal devices UE1 and UE2 may also send uplink data to the network device.

[0123] 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 greater 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 non-ground base stations or non-ground devices such as drones, hot air balloons, low-earth orbit satellites, medium-earth orbit satellites, and geostationary orbit satellites. The NTN communication system may be deployed independently or as a supplement to the ground network.

[0124] It should also be understood that the above naming is only defined for the convenience of distinguishing different functions and should not impose any limitations on this application. This application does not exclude the possibility of using other naming methods in 6G networks and future other networks.

[0125] The existing interference management process and the existing technical problems will be described below.

[0126] 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.

[0127] Compared with Figure 1 the traditional ground communication between network devices and the terminal UE2 in the network, the air signal transmission between the network device and the terminal UE1 is mainly line of sight communication (LOS). Communication that uses radio waves in the line-of-sight propagation mode for information transmission is line-of-sight communication. In line-of-sight communication, the wireless signal propagates linearly between the transmitter and the receiver without obstruction. Also, due to the unobstructed linear propagation, compared with traditional ground 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 signal transmission scenario, 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 transmission performance of the air UE being affected.

[0128] At present, the air cell and the ground cell can perform inter-cell interference management by exchanging scheduling information. For example, when an air device sends or receives data, the interfering cell on the ground or in the air obtains the scheduling information of the cell serving the air device and performs interference avoidance on the corresponding scheduling resources, that is, it does not send or receive on the scheduling resources of the cell serving the air device. However, according to the above, the number of interfering cells in the air signal transmission scenario is relatively large, so this method requires a large amount of information interaction between sites and the interaction delay is relatively long.

[0129] 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 in conjunction with the accompanying drawings Figures 2 to 7 , and the embodiments of the communication method 200 will be described.

[0130] Embodiment 1:

[0131] Figure 2 It 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 communication device, a second communication device, and a third communication device. Figure 2 The method shown can be executed by the first communication device, the second communication device, and the third communication device, or by modules and / or devices (such as chips or integrated circuits, etc.) with corresponding functions installed in the first communication device, the second communication device, and the third communication device. The present application does not make a limitation on this. As Figure 2 shown, the communication method 200 includes steps S210 to S260:

[0132] Step S210, the first communication device obtains first configuration information and / or resource configuration information.

[0133] In the embodiment of the present application, the first communication device may be a network device such as a base station that serves the third communication device in the first cell, or may be other communication devices in the first cell, such as a core network device, etc. In some other embodiments of the present application, the first communication 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 implement obtaining the first configuration information and / or resource configuration information in step S210. In other words, in the embodiment of the present application, the process of the communication device obtaining information may include an equivalent replacement description, that is, the communication device first determines the information and then obtains the information.

[0134] Specifically, the first configuration information may include cell configuration information and / or location information of the first cell for determining a first reference signal; the resource configuration information is used to indicate a first resource. The first resource may be used for the third communication device to send a first reference signal. The first resource may be used for the second communication device to receive a first reference signal.

[0135] 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 reference signal indicated by the first cell. At this time, the first reference signal may be cell-level reference information generated according to the cell configuration information of the first cell. The location information of the first cell may include global positioning system (GPS) information and other information for indicating the area or location where the first cell is located. At this time, the first reference signal may be area-level reference information generated according to the location information. For example, the first reference 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.

[0136] For example, in a predefined or preconfigured manner, it is defined that the first communication device uses reference signal A within area A and uses reference signal B within predefined or preconfigured area B. The first communication device determines, based on the acquired location information, that it is currently within area A, and further determines that the first reference signal is reference signal A corresponding to area A.

[0137] Exemplarily, the resource configuration information may include any one or more of the following: frequency-domain resource configuration information indicating the frequency-domain resources for transmitting or receiving the first reference signal, time-domain resource configuration information indicating the time-domain resources for transmitting or receiving the first reference signal, and code-domain resource configuration information indicating the code-domain resources for transmitting or receiving the first reference signal.

[0138] Step S220, the first communication device transmits the first configuration information and / or the resource configuration information.

[0139] Specifically, as Figure 2 shown, step S220 includes steps S221 and S225:

[0140] S221, transmit the first configuration information and / or the resource configuration information to the second communication device.

[0141] Correspondingly, the second communication device receives the first configuration information and / or the resource configuration information from the first communication device.

[0142] Furthermore, optionally, when the second communication device receives the first configuration information and / or the resource configuration information, it may execute step S230 to determine the first reference signal to be received according to the first configuration information and / or the resource configuration information. Alternatively, the second communication device attempts to receive or detect the first reference signal according to the first configuration information and / or the resource configuration information. The second communication device may receive or detect the first reference signal through the air interface or other means, and further may receive the first reference signal from the third communication device through the air interface or other means.

[0143] In the embodiments of the present application, the second communication device may be a network device such as a base station belonging to the second cell, or may also be other communication devices such as terminal devices or core network devices.

[0144] S225, transmit the first configuration information and / or the resource configuration information to the third communication device.

[0145] Correspondingly, the third communication device receives the first configuration information and / or the resource configuration information from the first communication device.

[0146] Furthermore, after receiving the first configuration information and / or the resource configuration information, the third communication device determines the first reference signal, that is, executes step S240 in communication method 200, and the third communication device determines the first reference signal.

[0147] In an embodiment of the present application, the third communication device may be Figure 1 the air terminal UE1 belonging to the first cell in the network architecture shown, or may be a terminal device on an air device such as a satellite or a balloon mentioned above.

[0148] The present application does not limit the sequence of steps S221 and S225. These two steps may be performed successively or simultaneously.

[0149] Optionally, step S220 may further include step S227, where the first communication device sends third indication information to the third communication device.

[0150] Correspondingly, the third communication device receives the third indication information from the first communication device.

[0151] Specifically, the third indication information is used to instruct the third communication device to send a first reference signal within a first time period, for example, to trigger the third communication device to send the first reference signal. For example, the first communication 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 communication device may send the third indication information to the third communication device through step S227 at any time before the third communication device executes step S240. The present application does not limit the sending manner of the third indication information at all.

[0152] Optionally, the third indication information may be a first downlink control information (DCI), and the first DCI is used to schedule a first signal. That is, the first DCI is used to schedule the first communication device to send or receive the first signal. Specifically, for example, after receiving the first DCI, the first communication device may default to first send the first reference signal, and then send or receive the first signal. Therefore, in addition to scheduling the first signal, the first DCI also has the function of indicating the sending of the first reference signal. For another example, the third indication information may be to trigger the first communication device to send the first reference signal within the first time period, that is, after receiving the third indication information, the first communication device immediately sends the first reference signal at the end moment of the third indication information. The above first DCI is only an example, and the present application does not limit the specific content of the third indication information.

[0153] Optionally, the communication method 200 may include step S230, where the second communication device determines the first reference signal. Or, the second communication device tries to receive or detect the first reference signal according to the first configuration information and / or resource configuration information.

[0154] Step S240, the third communication device determines a first reference signal.

[0155] Specifically, the first reference signal is used to indicate the transmission or reception of a first signal in the first cell during a second time period.

[0156] Wherein, the first cell is the cell to which the third communication device belongs, or the cell that serves the third communication device, or the cell that establishes a communication connection with the third communication device. The existence of the transmission or reception of the first signal may be that the third communication device transmits or receives the first signal during the second time period, or the third communication device determines the first communication device that serves the third communication device in the above first cell. For example, there is a transmission or reception of a signal between the first communication device, such as a base station, and the third communication device. Specifically, the first communication device receives or transmits the first signal during the second time period, and correspondingly, the third communication device transmits or receives the first signal. Therefore, the first cell can also be understood as the cell where the first communication device provides services to the third communication device.

[0157] Optionally, the first signal may be a physical downlink shared channel (PDSCH) signal or a physical uplink shared channel (PUSCH) signal.

[0158] Step S250, the third communication device transmits the first reference signal during a first time period.

[0159] Optionally, the second communication device may receive the first reference signal from the third communication device during the first time period, where the second communication device may be any communication device that can receive or detect the first reference signal. In the embodiments of the present application, the second communication device and the third communication device perform signal transmission and reception through the air interface. Compared with the information interaction between cell sites, the time delay of information interaction through the air interface is shorter. The first reference signal is used to indicate the transmission or reception of a first signal in the first cell during a second time period. That is, when the third communication device transmits the first reference signal, it means that there is a transmission or reception of a first signal in the first cell during the second time period; when the third communication device does not transmit the first reference signal, it means that there is no transmission or reception of a first signal in the first cell during the second time period. That is, when the second communication device detects or receives the first reference signal, it means that the second communication device determines that there is a transmission or reception of a first signal in the first cell during the second time period; when the second communication device does not detect or receive the first reference signal, it means that the second communication device determines that there is no transmission or reception of a first signal in the first cell during the second time period.

[0160] In an embodiment of the present application, the second time period indicated by the first reference signal is after the first time period in step S250. Specifically, the first time period may be continuous with the second time period, that is, the end time of the first time period and the start time of the second time period are the same moment. 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 period and the start time of the second time period, and the one or more time units may be predefined or determined by configuration parameters. The first time period and the second time period will be specifically introduced later and will not be elaborated here.

[0161] Figure 3 The figure shows a schematic diagram of another network architecture of the present application. As Figure 3 shown, as mentioned above, the first communication device may establish a communication connection with the third communication device, or the first communication device provides services to the third communication device. The second communication device may not establish a communication connection with the third communication device (it should be understood that although the second communication device receives the first reference signal sent by the third communication device, it does not mean that the second communication device establishes a communication connection with the third communication device), or rather, the second communication device does not serve the third communication device.

[0162] Furthermore, the second communication device may establish a connection with a fourth communication device such as a terminal device. Exemplarily, as Figure 3 shown, the third communication device may be a terminal device such as an air terminal or a terminal on an air device. The third communication device establishes a connection with the first communication device. The first communication device may be a first network device (such as: a base station), and the second communication device may be a second network device (such as: a base station). The second communication device does not establish a communication connection with the first communication device, and the second communication device may establish a communication connection with a fourth communication device such as a terminal device.

[0163] Step S260, the second communication device determines the signal transmission or reception of the second cell within the second time period according to the first reference signal.

[0164] Specifically, after the second communication device receives the first reference signal in the first time period, it determines the signal transmission or reception of the second cell within the second time period according to the second time period indicated in the first reference signal. The second cell may include the above-mentioned fourth communication device that causes interference to the transmission or reception of the first signal in the first cell, and the signal transmitted or received by the fourth communication device in the second cell will cause interference to the first signal.

[0165] Optionally, the second communication device may send first indication information to a fourth communication device, such as a terminal device, in the second cell, where the first indication information is used to instruct the fourth communication device to stop or cancel the signal transmission or reception of the second signal in the second cell during the second time period. Correspondingly, the fourth communication device stops or cancels the signal transmission or reception of the second signal during the second time period according to the first indication information. That is, if the second communication device receives the first reference signal during the first time period, the second communication device may send the first indication information to the fourth terminal device in the second cell. If the second communication device does not receive the first reference signal during the first time period, the second communication device does not send the first indication information to the fourth terminal device in the second cell.

[0166] Optionally, the second communication device may send second indication information to a fourth communication device in the second cell, where the second indication information is used to instruct to adjust the airspace transmission configuration of the second signal in the second cell. For example, after receiving the second indication information, the fourth communication device in the second cell may adjust the airspace transmission configuration of the second signal in the second cell, such as the precoding matrix, or the airspace filter, or the beam of the second signal. Correspondingly, the fourth communication device may adjust the airspace transmission configuration of the second signal according to the second indication information. For another example, before receiving the second indication information, the fourth communication device determines that the airspace transmission configuration of the second signal is the first airspace transmission configuration, such as the first precoding matrix, and after receiving the second indication information, the terminal device determines that the airspace transmission configuration of the second signal is the second airspace transmission configuration, such as the second precoding matrix. Therefore, it can also be said that the second indication information indicates the second airspace transmission configuration of the second signal in the second cell during the third time period, the total transmission or reception time period of the second signal is the second time period, the third time period is a part of the second time period, and the airspace transmission configuration of the second signal during the third time period is the second airspace transmission configuration. Before the third time period, the airspace transmission configuration of the second signal in the second cell may be the first airspace transmission configuration, and the first airspace transmission configuration may be different from the second airspace transmission configuration. That is, if the second communication device receives the first reference signal during the first time period, the second communication device may send the second indication information to the fourth terminal device in the second cell. If the second communication device does not receive the first reference signal during the first time period, the second communication device does not send the second indication information to the fourth terminal device in the second cell.

[0167] Optionally, the second communication device may also send a fourth indication message to a fourth communication device in the second cell, where the fourth indication message is used to indicate that signal transmission or reception is not performed in the second cell during a second time period. Further, signal transmission or reception that may interfere with the first signal in the second cell during the second time period can be avoided. That is, if the second communication device receives the first reference signal during the first time period, the second communication device may determine not to perform signal transmission or reception in the second cell during the second time period. If the second communication device does not receive the first reference signal during the first time period, the second communication device may perform signal transmission or reception in the second cell during the second time period.

[0168] Optionally, the communication method 200 may further include step S270, where a third communication device transmits or receives a first signal in the first cell during the second time period. Or rather, the third communication device has a need for transmission or reception of the first signal. It should be understood that the role of the first reference signal is to indicate that there is transmission or reception of the first signal in the first cell during the second time period. Therefore, after the third communication device transmits the first reference signal during the first time period, the third communication device may also transmit or receive the first signal during the second time period. That is, if the third communication device transmits the first reference signal during the first time period, it will also transmit or receive the first signal during the second time period; if the third communication device does not transmit the first reference signal during the first time period, it will not transmit or receive the first signal during the second time period.

[0169] The following specifically introduces the interaction processes between pairs of communication devices in the communication method 200 in conjunction with 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 reference signal, the first configuration information, the resource configuration information, etc. This is not elaborated herein.

[0170] Embodiment 2:

[0171] Figure 4 The interaction flow chart of the communication method 400 is shown, where the communication method 400 is the interaction process between a first communication device and a third communication device. For ease of understanding, the first communication device is taken as a first network device and the third communication device is taken as a first terminal device as an example. The first network device may be a base station serving the first terminal device. Therefore, it can be said that the first network device and the first terminal device belong to the same cell, such as the first cell mentioned above. As Figure 4 shown, the communication method S400 includes steps S410 to S470.

[0172] Step S410, the first network device obtains the first configuration information and / or the resource configuration information.

[0173] Step S410 may refer to step S210 in Embodiment 1, and 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 reference signal; the resource configuration information is used to indicate the first resource, which is used for the first terminal device to send the first reference signal and for the second network device to receive the first reference signal.

[0174] Step S425, the first network device sends the first configuration information and / or resource configuration information to the first terminal device.

[0175] 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.

[0176] Optionally, the communication method 400 may further include step S427, where the first network device sends the third indication information to the first terminal device.

[0177] 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 reference signal within the first time period, for example, to trigger the first terminal device to send the first reference signal, and the first reference signal is used to indicate the transmission or reception of the first signal in the first cell within the second time period.

[0178] Figure 5 A schematic diagram showing the sending of the third indication information is shown, where the third indication information is the first DCI sent by the first network device. As Figure 5 shown, the first network device may schedule the first signal through the first DCI, and after receiving the first DCI sent by the first network device, the first terminal device sends the first reference signal within the first time period. In Figure 5 the embodiment shown, the first network device sends the first signal to the first terminal device within the second time period. Correspondingly, the first terminal device receives the first signal from the first network device within the second time period.

[0179] As Figure 5 shown in (a) of, the first time period and the second time period may be continuous, and the first DCI and the first reference signal may also be continuous, or rather, the first DCI is used to trigger the sending of the first reference signal within the first time period. As Figure 5As shown in (b) thereof, there is at least one time unit interval between the end time of the first time period and the start time of the second time period. Optionally, there may also be at least one time unit interval between the end time of the first DCI and the start time of the first reference signal.

[0180] Optionally, the first time period 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.

[0181] Optionally, the second time period may be a scheduling time period for a first signal reception or transmission. Taking the first signal as a 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 period is symbols L to L + K within the first time slot.

[0182] Optionally, the second time period may be a predefined or preconfigured time window, and one or more transmissions or receptions of the first signal may be performed within this time window. For example, this time window may include one or more second time units, and the second time unit may be a time slot, a symbol, or a ms. For another example, if the time window includes J time slots and the first signal is a 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 this time window.

[0183] Step S440, the first terminal device determines a first reference signal.

[0184] Step S440 may refer to step S240 in Embodiment 1, and the first reference signal in step S440 may refer back to the description in Embodiment 1. Specifically, the first terminal device determines the first reference signal according to the received first configuration information and / or resource configuration information. The first reference signal is used to indicate the presence of a first signal transmission or reception in the first cell during the second time period.

[0185] Step S450, the first terminal device transmits the first reference signal within the first time period.

[0186] Step S450 may refer to step S250 in Embodiment 1. Optionally, the second network device may receive the first reference signal from the first terminal device in the second cell within the first time period.

[0187] Optionally, the communication method 400 may further include step S470, where the first terminal device sends or receives a first signal in the first cell during a second time period. Or rather, the first terminal device has a requirement for sending or receiving a first signal in the first cell during the second time period. Correspondingly, the first network device may receive or send the first signal in the first cell during the second time period. Step S470 may refer to step S270 in Embodiment 1.

[0188] Embodiment 3:

[0189] Figure 6 The interaction flowchart of the communication method 500 is shown, where the communication method 500 is the interaction process between a second communication device and a third communication device, and is after Figure 2 step S240 shown or Figure 4 step S440 shown. For ease of understanding, take the second communication device as the second network device and the third communication device as the first terminal device as an example. The first terminal device and the second network device are located in different cells. For example, as mentioned above, the first terminal device is located in the first cell and the second network device is located in the second cell. 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.

[0190] Step S550, the first terminal device sends a first reference signal during a first time period.

[0191] Step S550 may refer to step S250 in Embodiment 1. Correspondingly, the second network device receives the first reference signal from the first terminal device during the first time period, and the first reference signal is used to indicate the existence of sending or receiving a first signal in the first cell during a second time period. 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 latency of information interaction through the air interface is shorter.

[0192] Step S560, the second network device determines the signal sending or receiving in the second cell during the second time period according to the first reference signal.

[0193] Step S560 may refer to step S260 in Embodiment 1. Specifically, after the second network device receives the first reference signal in the first time period, it determines the signal transmission or reception of the second cell within the second time period indicated in the first reference signal. The second cell may include the fourth communication device that interferes with the transmission or reception of the first signal in the first cell, and the second signal transmitted or received by the fourth communication device in the second cell will interfere with the first signal.

[0194] Embodiment 4:

[0195] Figure 7 The interactive flowchart of communication method 600 is shown, where communication method 600 is the interactive process between the second communication device and the fourth communication device. Communication method 600 occurs after Figure 2 the step S250 shown or Figure 6 S550 shown, that is, the specific implementation manner of step 560 executed after the second communication device receives the first reference signal in the first time period. For ease of understanding, take the second communication device as the second network device and the fourth communication device as the second terminal device as an example. As Figure 3 shown, the second network device may be a base station serving the second terminal device. Therefore, it can be said that the second network device and the second terminal device belong to the same cell, such as the second cell mentioned above. As Figure 7 shown, communication method 600 includes steps S660 to S680.

[0196] Step S660, the second network device determines the signal transmission or reception of the second cell within the second time period according to the first reference signal.

[0197] Specifically, as Figure 6 shown, step S660 may include any one or several of steps S661, S664, and S667.

[0198] Step S661, the second network device sends the first indication information to the second terminal device.

[0199] Specifically, the first indication information is used to instruct the second terminal device to stop or cancel the signal transmission or reception of the second signal in the second cell during the second time period, that is, the second terminal device has a signal transmission or reception requirement for the second signal before the transmission or reception of the first signal. The specific scheme of the first indication information can refer to the description in Embodiment 1.

[0200] Correspondingly, the second terminal device receives the first indication information from the second network device.

[0201] Furthermore, in step S670, the second terminal device stops or cancels the transmission or reception of the second signal within the second time period according to the first indication information.

[0202] In step S664, the second network device sends second indication information to the second terminal device.

[0203] Specifically, the second indication information is used to instruct the second terminal device to adjust the airspace transmission configuration of the second signal in the second cell within the second time period. The specific solution of the second indication information can refer to the description in Embodiment 1.

[0204] Correspondingly, the second terminal device receives the second indication information from the second network device.

[0205] Furthermore, in step S680, the second terminal device adjusts the airspace transmission configuration of the second signal in the second cell according to the second indication information. Optionally, the airspace transmission configuration may include a precoding matrix of the second signal, or an airspace filter, or a beam, etc.

[0206] In step S667, the second network device sends fourth indication information to the second terminal device.

[0207] Specifically, the fourth indication information is used to instruct the second terminal device not to perform signal transmission or reception in the second cell within the second time period. The specific solution of the fourth indication information can refer to the description in Embodiment 1.

[0208] 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 within the second time period according to the fourth indication information.

[0209] In the communication method of the present application, when a third communication device such as a terminal device has a need for the transmission or reception of a first signal, the third communication device may first send a first reference signal, so that communication devices such as a second communication device that cause interference to the first cell in other cells can identify the need for the transmission or reception of the first signal according to the first reference 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 first signal is not interfered. Moreover, in the scenario of air interface transmission, information interaction between communication devices is carried out through the air interface, and the time delay is shorter.

[0210] Finally, the apparatus embodiments of the present application are introduced.

[0211] To implement the various functions in the method provided by this application, a communication device such as a terminal device or a network device may include a hardware structure and / or a software module, and implement the above various 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 various 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.

[0212] Figure 8 FIG. 4 is a schematic block diagram of a communication device 800 according to an embodiment of the present application. The communication device 800 includes a processor 810 and a communication interface 820, and the processor 810 and the communication interface 820 may be connected to each other through a bus 830. The communication device 800 may be a communication device such as a network device, a terminal device, or a core network device that executes the communication methods 200, 400, 500, and 600.

[0213] Optionally, the communication device 800 may further include a memory 840. The memory 840 includes, but is not limited to, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), or a compact disc read-only memory (CD-ROM). The memory 840 is used to store relevant instructions and data.

[0214] The processor 810 may be one or more central processing units (CPUs). When the processor 810 is a single CPU, the CPU may be a single-core CPU or a multi-core CPU.

[0215] When the communication device 800 is a first communication device, exemplarily, the communication device 800 is used to perform the following operations: sending first configuration information and / or resource configuration information.

[0216] When the communication device 800 is a second communication device, exemplarily, the communication device 800 is used to perform the following operations: determining signal transmission or reception of a second cell within a second time period according to the first reference signal.

[0217] When the communication device 800 is a third communication device, exemplarily, the communication device 800 is used to perform the following operations: sending a first reference signal within a first time period.

[0218] The above contents are only exemplary descriptions. When the communication apparatus 800 is the first communication device, the second communication device or the third communication device, it will be responsible for executing the methods or steps related to the first communication device, the second communication device or the third communication device in the above method embodiments.

[0219] The above description is only an exemplary description. For specific content, please refer to the content shown in the above method embodiment. Figure 8 The implementation of each operation can also refer to Figure 2 , Figure 4 , Figure 6 and Figure 7 The corresponding description of the method embodiment shown.

[0220] Figure 9 : is a schematic block diagram of a communication device 900 of an embodiment of the present application. The communication device 900 may be a network device, a terminal device, a core network device, etc., or may be a chip or module in a network device, a terminal device, a core network device, etc., for implementing the method involved in the above embodiment. The communication device 900 includes a transceiver unit 910 and a processing unit 920. The transceiver unit 910 and the processing unit 920 are exemplarily introduced below.

[0221] The transceiver unit 910 may include a sending unit and a receiving unit. The sending unit is used to perform a sending action of the communication device, and the receiving unit is used to perform a receiving action of the communication device. For ease of description, the embodiment of the present application combines the sending unit and the receiving unit into one transceiver unit. A unified description is given here, and no further description is given later.

[0222] When the communication apparatus 900 is a first communication device, illustratively, the transceiver unit 910 is used to send the first configuration information and / or resource configuration information.

[0223] When the communication apparatus 900 is a second communication device, exemplarily, the transceiver unit 910 is used to receive a first reference signal in a first time period, and the processing unit 920 is used to determine, based on the first reference signal, signal transmission or reception of a second cell in the second time period.

[0224] When the communication apparatus 900 is a third communication device, illustratively, the transceiver unit 910 is configured to send the first reference signal, etc. in the first cell within a first time period.

[0225] The above contents are only exemplary descriptions. When the communication apparatus 900 is the first communication device, the second communication device or the third communication device, it will be responsible for executing the methods or steps related to the first communication device, the second communication device or the third communication device in the above method embodiments.

[0226] Optionally, the communication device 900 further includes a storage unit 930, which is configured to store a program or code for executing the foregoing method.

[0227] Figure 8 and Figure 9 The device embodiments shown are for implementing Figure 2 , Figure 4 , Figure 6 and Figure 7 the content described above. Figure 8 and Figure 9 For the specific execution steps and methods of the device shown, reference may be made to the content described in the foregoing method embodiments.

[0228] Figure 10 FIG. is a schematic block diagram of a communication device 1000 according to an embodiment of the present application. The communication device 1000 is configured to implement the functions of a first communication device, a second communication device, or a third communication device. The communication device 1000 may be a chip in the first communication device, the second communication device, or the third communication device.

[0229] The communication device 1000 includes: an input / output interface 1020 and a processor 1010. The input / output interface 1020 may be an input / output circuit. The processor 1010 may be a signal processor, a chip, or other integrated circuit that can implement the method of the present application. Among them, the input / output interface 1020 is used for input or output of signals or data.

[0230] For example, when the communication device 1000 is the first communication device, the input / output interface 1020 is used to send the first configuration information and / or resource configuration information.

[0231] For example, when the communication device 1000 is the second communication device, the input / output interface 1020 is used to receive a first reference signal in a first time period. The processor 1010 is configured to determine signal transmission or reception of a second cell in a second time period based on the first reference signal, etc.

[0232] For example, when the communication device 1000 is the third communication device, the input / output interface 1020 is used to send the first reference signal in the first cell in a first time period, etc.

[0233] In a possible implementation, the processor 1010 executes instructions stored in a memory to implement the functions implemented by a network device or a terminal device.

[0234] Optionally, the communication device 1000 further includes a memory.

[0235] Optionally, the processor and the memory are integrated together.

[0236] Optionally, the memory is outside the communication device 1000.

[0237] In a possible implementation, the processor 1010 may be a logic circuit. The processor 1010 inputs / outputs messages or signaling through the input / output interface 1020. The logic circuit may be a signal processor, a chip, or other integrated circuits that can implement the methods of the embodiments of the present application.

[0238] The above description of the communication device 1000 is only an exemplary description. The communication device 1000 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 elaborated herein.

[0239] The present application also provides a chip, including a processor, configured 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.

[0240] 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 configured to execute code in a memory. When the code is executed, the processor is configured to execute the methods in the above examples. Optionally, the chip further includes a memory, which is configured to store computer programs or code.

[0241] The present application also provides a processor, configured to be coupled with a memory, and configured to execute the methods and functions related to network devices or terminal devices in any one of the foregoing embodiments.

[0242] 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 are implemented.

[0243] The present application also provides a computer program. When the computer program runs on a computer, the methods of the foregoing embodiments are implemented.

[0244] The present application also 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 methods described in the foregoing embodiments are implemented.

[0245] Those of ordinary skill in the art can realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or by 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.

[0246] Those skilled in the art can clearly understand that for the convenience and conciseness 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 elaborated herein.

[0247] In several embodiments provided in the present application, the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely 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 or 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.

[0248] The units described as separate components may or may not be physically separated. 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 solutions of the embodiments of the present application.

[0249] In addition, the functional units in each embodiment of the present application can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit.

[0250] 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 solutions of the embodiments of the present application, in essence, or the part that contributes to the prior art or a part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of each method embodiment of the present application. The foregoing 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.

[0251] 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 art within the technical scope disclosed in the embodiments of the present application should be covered within 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, Including: Receiving a first reference signal in a first time period, where the first reference signal is used to indicate the transmission or reception of a first signal in a first cell during a second time period; Determining the signal transmission or reception of a second cell during the second time period according to the first reference signal.

2. The method according to claim 1, characterized in that, The determining the signal transmission or reception of the second cell during the second time period includes: Sending first indication information, where the first indication information is used to indicate stopping or canceling the signal transmission or reception of a second signal in the second cell during the second time period.

3. The method according to claim 1, characterized in that, The determining the signal transmission or reception of the second cell during the second time period includes: Sending second indication information, where the second indication information is used to indicate adjusting the spatial domain transmission configuration of a second signal in the second cell, and the spatial domain transmission configuration includes at least one of a precoding matrix, a spatial domain filter, and a beam of the second signal.

4. The method according to claim 1, characterized in that, The determining the signal transmission or reception of the second cell during the second time period includes: Determining not to perform signal transmission or reception in the second cell during the second time period.

5. The method according to any one of claims 1 to 4, characterized in that, Before receiving the first reference signal in the first time period, the method further includes: Determining first configuration information, where the first configuration information is used to determine the first reference signal, and the first configuration information includes cell configuration information and / or location information of the first cell.

6. The method according to claim 5, characterized in that, The cell configuration information of the first cell includes a physical cell identifier of the first cell or sequence information of the first reference signal indicated by the first cell.

7. The method according to claim 5 or 6, characterized in that, The location information includes Global Positioning System (GPS) information.

8. The method according to any one of claims 1 to 7, characterized in that, Before receiving the first reference signal in the first time period, the method further includes: Determining resource configuration information, where the resource configuration information is used to indicate a first resource, and the first resource is used to transmit or receive the first reference signal, and the resource configuration information includes any one or any combination of the following: frequency domain resource configuration information, time domain resource configuration information, and code domain resource configuration information.

9. The method according to any one of claims 1 to 8, characterized in that, The second time period is after the first time period.

10. The method according to claim 9, characterized in that, There is an interval of N time units between the end time of the first time period and the start time of the second time period, where N is a positive integer; or, the second time period is continuous with the first time period.

11. A communication method, characterized in that, Including: Transmitting a first reference signal in a first cell in a first time period, where the first reference signal is used to indicate the transmission or reception of a first signal in the first cell during a second time period.

12. The method according to claim 11, characterized in that, The method further includes: Transmitting or receiving the first signal in the first cell during the second time period.

13. The method according to claim 11 or 12, characterized in that, The method further includes: Determining the first reference signal according to the first configuration information, where the first configuration information includes cell configuration information and / or location information of the first cell.

14. The method according to claim 13, characterized in that, The cell configuration information includes a physical cell identifier of the first cell or sequence information of the first reference signal indicated by the first cell.

15. The method according to claim 13 or 14, characterized in that, The location information includes Global Positioning System (GPS) information.

16. The method according to any one of claims 11 to 15, characterized in that, The method further includes: Determine a first resource according to resource configuration information, where the first resource is used to send or receive the first reference signal, and the resource configuration information includes any one or any combination of the following: Frequency-domain resource configuration information, time-domain resource configuration information, and code-domain resource configuration information.

17. The method according to any one of claims 11 to 16, characterized in that, The second time period is after the first time period.

18. The method according to claim 17, characterized in that, There are N time units between the start time of the second time period and the end time of the first time period, where N is a positive integer; or, the second time period is continuous with the first time period.

19. The method according to any one of claims 11 to 18, characterized in that, Before sending the first reference signal in the first time period, the method further includes: Receiving third indication information, where the third indication information is used to indicate sending the first reference signal in the first time period.

20. The method according to claim 19, characterized in that, The third indication information is first downlink control information, and the first downlink control information is further used to schedule the first signal.

21. A communication method, characterized in that, Including: Sending first configuration information and / or resource configuration information, where the first configuration information includes cell configuration information and / or location information of a first cell, the first configuration information is used to determine a first reference signal, the first reference signal is used to indicate the sending or receiving of a first signal in the first cell during a second time period, and the resource configuration information is used to indicate a first resource, where the first resource is used to send or receive the first reference signal.

22. The method according to claim 21, characterized in that, The resource configuration information includes any one or any combination of the following: Frequency-domain resource configuration information, time-domain resource configuration information, and code-domain resource configuration information.

23. The method according to claim 21 or 22, characterized in that, The method further includes: Sending third indication information, where the third indication information is used to indicate sending the first reference signal in the first time period.

24. The method according to claim 23, characterized in that, The third indication information is first downlink control information, and the first downlink control information is used to schedule the first signal.

25. A communication device, characterized in that, Including: A processor, where the processor is used to execute a program or instruction, so that the device executes the method according to any one of claims 1 to 10.

26. A communication device, characterized in that, Including: A processor, where the processor is used to execute a program or instruction, so that the device executes the method according to any one of claims 11 to 20.

27. A communication device, characterized in that, Including: A processor, where the processor is used to execute a program or instruction, so that the device executes the method according to any one of claims 21 to 24.

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

29. A computer-readable storage medium, characterized in that, A computer program is stored on the computer-readable storage medium. When the computer program runs on a computer, the computer is caused to execute the method according to any one of claims 1 to 10, or the method according to any one of claims 11 to 20, or the method according to any one of claims 21 to 24.

30. 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 10, or the method according to any one of claims 11 to 20, or the method according to any one of claims 21 to 24.

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