Communication method and device

Abstract

The present application relates to the technical field of communications, and provides a communication method and device. The method comprises: when a usage condition for a first resource is met, a first network device uses the first resource to communicate with a first terminal. The usage condition for the first resource is related to the communication quality between the first network device and the first terminal (i.e., first communication quality), and / or the usage condition for the first resource is related to the communication quality between a second network device and a second terminal (i.e., second communication quality). When the usage condition is related to the first communication quality, the communication between the first network device and the first terminal can be prevented from being interfered with by other network devices or other terminals, thereby improving the communication quality of the first terminal. When the usage condition is related to the second communication quality, the first network device can communicate with the first terminal by using the first resource, without interfering with the communication between the second network device and the second terminal, thereby ensuring the communication quality of the second terminal.

Description

Communication method and apparatus

[0001] The present application claims priority from the Chinese patent application No. 202410743771.3 filed on June 7, 2024, and entitled "Communication method and apparatus", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of communication technology, and in particular to a communication method and apparatus. BACKGROUND

[0003] In a communication system, there is a communication scenario (referred to as a multi-node spectrum sharing scenario) in which at least two network devices share a frequency spectrum, and the coverage ranges of these network devices overlap completely or partially. In this communication scenario, if these network devices communicate with multiple terminals in the same time period, the signals transmitted by these network devices and / or the signals transmitted by multiple terminals will interfere with each other, affecting the communication quality of the terminals. SUMMARY

[0004] The present application provides a communication method and apparatus, which can solve the problem of signal interference in a multi-node spectrum sharing scenario, so as to improve the communication quality of terminals.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] In a first aspect, a communication method is provided, which can be executed by a first network device. Here, the first network device can refer to the first network device itself, or a processor, circuit, module, logic node, chip, or chip system, etc. in the first network device that implements the method.

[0007] The method comprises: obtaining a usage condition of a first resource; and communicating with a first terminal using the first resource in a case where the usage condition is met. The usage condition of the first resource is related to the communication quality between the first network device and the first terminal, and / or the usage condition of the first resource is related to the communication quality between a second network device and a second terminal.

[0008] In the method, the first network device can determine whether to use the first resource to communicate with the first terminal based on the usage condition of the first resource. When the usage condition of the first resource is related to the communication quality between the first network device and the first terminal, the communication between the first network device and the first terminal can be prevented from being interfered by other network devices or other terminals, so as to improve the communication quality of the first terminal. When the usage condition of the first resource is related to the communication quality between the second network device and the second terminal, the communication between the first network device and the first terminal using the first resource can not affect the communication between the second network device and the second terminal, so as to guarantee the communication quality of the second terminal.

[0009] In a possible implementation, when the usage condition of the first resource is related to the communication quality between the first network device and the first terminal, the usage condition of the first resource comprises one or more of the following conditions: condition 1: the first terminal can correctly receive the signal sent by the first network device using the first resource; or condition 2: the first network device can correctly receive the signal sent by the first terminal using the first resource.

[0010] Based on the possible implementation, the first terminal can correctly receive the signal sent by the first network device using the first resource, and / or the first network device can correctly receive the signal sent by the first terminal using the first resource.

[0011] In a possible implementation, when the usage condition of the first resource comprises the condition 1, the usage condition of the first resource is satisfied in one or more of the following manners: the first reception power is less than or equal to a first threshold, the first reception power being the power of the signal sent by the second network device or the second terminal and received by the first terminal; or the difference between the second reception power and the first reception power is greater than or equal to a second threshold, the second reception power being the power of the signal sent by the first network device and received by the first terminal; or the distance between the first terminal and the first network device is less than or equal to a first value; or the second terminal is located outside a first area in which the first terminal is located.

[0012] Based on the possible implementation, the first terminal can correctly receive the signal sent by the first network device using the first resource in one or more of the above manners.

[0013] In a possible implementation, the first reception power and / or the second reception power are further used to determine one or more of the following information: the transmission power of the signal sent by the first network device to the first terminal using the first resource; or the transmission power of the signal sent by the second network device to the second terminal using the first resource; or the transmission power of the signal sent by the second terminal to the second network device using the first resource.

[0014] Based on the possible implementation manners above, the one or more transmission powers can be determined based on the first reception power and / or the second reception power, to guarantee the communication quality of the downlink communication of the first terminal on the first resource.

[0015] In a possible implementation manner, the usage condition of the first resource comprises condition 2, and the usage condition of the first resource is satisfied when one or more of the following conditions are met: the third reception power is less than or equal to a third threshold value, the third reception power being the power of a signal received by the first network device and transmitted by the second network device or the second terminal; or, a difference between the fourth reception power and the third reception power is greater than or equal to a fourth threshold value, the fourth reception power being the power of a signal received by the first network device and transmitted by the first terminal; or, a distance between the first terminal and the first network device is less than or equal to a second value; or, an included angle between a first direction and a second direction is greater than or equal to a first threshold value, the first direction being a direction of a line connecting the second network device and the first network device, and the second direction being a direction in which the first network device communicates with the first terminal; or, an included angle between a third direction and the second direction is greater than or equal to a second threshold value, the third direction being a direction of a line connecting the second terminal and the first network device; or, the second terminal is located outside a second area, the second area being related to a position of the first terminal and / or a position of the first network device; or, a height of the second network device is located in a first height range, and the power of a signal transmitted by a network device in the first height range and reaching the first network device is less than or equal to a fifth threshold value.

[0016] Based on the possible implementation manners above, the first network device can correctly receive the signal transmitted by the first terminal by using the first resource in one or more of the above manners.

[0017] In a possible implementation manner, the third reception power and / or the fourth reception power are further used to determine one or more of the following information: a transmission power of the first terminal for transmitting a signal to the first network device by using the first resource; or, a transmission power of the second network device for transmitting a signal to the second terminal by using the first resource; or, a transmission power of the second terminal for transmitting a signal to the second network device by using the first resource.

[0018] Based on the possible implementation manners above, the one or more transmission powers can be determined based on the third reception power and / or the fourth reception power, to guarantee the communication quality of the uplink communication of the first terminal on the first resource.

[0019] In a possible implementation manner, if the usage condition of the first resource is related to the communication quality between the second network device and the second terminal, the usage condition of the first resource comprises one or more of the following conditions: condition 3: the second terminal can correctly receive a signal transmitted by the second network device by using the first resource; or, condition 4: the second network device can correctly receive a signal transmitted by the second terminal by using the first resource.

[0020] Based on the possible implementation manners above, the second terminal can correctly receive the signal transmitted by the second network device by using the first resource, and / or the second network device can correctly receive the signal transmitted by the second terminal by using the first resource.

[0021] In a possible implementation manner, the usage condition of the first resource comprises one or more of condition 3 or condition 4, and the usage condition of the first resource is satisfied in one or more of the following manners: the power of the signal transmitted by the first network device by using the first resource is less than or equal to a sixth threshold value; or the power of the signal transmitted by the first network device in the fourth direction by using the first resource is less than or equal to a seventh threshold value; or the power of the signal transmitted by the first network device to the third area where the second terminal is located by using the first resource is less than or equal to an eighth threshold value; or the power of the signal transmitted by the terminal using the first resource is less than or equal to a ninth threshold value; or the power of the signal transmitted by the terminal in the third area by using the first resource is less than or equal to a tenth threshold value; or the terminal using the first resource is located outside the third area.

[0022] Based on the possible implementation manners above, the second terminal can correctly receive the signal transmitted by the second network device by using the first resource, and / or the second network device can correctly receive the signal transmitted by the second terminal by using the first resource.

[0023] In a possible implementation manner, the usage condition of the first resource is obtained by receiving information about the usage condition from the second network device.

[0024] Based on the possible implementation manners above, the usage condition of the first resource can be obtained.

[0025] In a possible implementation manner, the first resource comprises one or more of the following: a time resource, a frequency resource, a space resource or a polarization resource.

[0026] Based on the possible implementation manners above, the communication quality of the communication between the first terminal and the first network device on the various resources above can be guaranteed.

[0027] In a possible implementation manner, the first network device is a network device in a non-terrestrial network, and the second network device is a network device in a terrestrial network; or the first network device is a network device in a terrestrial network, and the second network device is a network device in a non-terrestrial network.

[0028] Based on the possible implementation manners above, the method provided in the first aspect can be applied to a scenario of interaction between a network device (such as a satellite) in a non-terrestrial network and a network device (such as a ground base station) in a terrestrial network, such as a scenario of spectrum sharing between a satellite and a ground base station.

[0029] In a possible implementation, the method further includes: receiving resource configuration information from the second network device, the resource configuration information indicating one or more of the following resource types: a conditionally available resource type, a hard resource type, a soft resource type, or an unavailable resource type, and the first resource being of the conditionally available resource type.

[0030] Based on the possible implementation, the resource type corresponding to the resource can be determined, so as to determine whether the resource can be used. The resource corresponding to the conditionally available resource type can be determined to be usable or not usable according to the usage condition, the resource corresponding to the hard resource type is a fixedly usable resource, the resource corresponding to the soft resource type can be determined to be usable or not usable according to the indication of the second network device, and the resource corresponding to the unavailable resource type is a non-usable resource.

[0031] In a second aspect, a communication method is provided, which can be performed by a second network device. The second network device can refer to the second network device itself, or a processor, circuit, module, logic node, chip, or chip system, etc. in the second network device that implements the method.

[0032] The method includes: obtaining a usage condition of a first resource; and sending, to a first network device, information of the usage condition of the first resource, the information of the usage condition being used by the first network device to determine whether to use the first resource to communicate with a first terminal in a case where the usage condition is met. The usage condition of the first resource is related to a communication quality between the first network device and the first terminal, and / or the usage condition of the first resource is related to a communication quality between the second network device and a second terminal.

[0033] Based on the method provided in the second aspect, the first network device can determine whether to use the first resource to communicate with the first terminal based on the usage condition of the first resource. When the usage condition of the first resource is related to the communication quality between the first network device and the first terminal, the communication between the first network device and the first terminal can be prevented from being interfered by other network devices or other terminals, so as to improve the communication quality of the first terminal. When the usage condition of the first resource is related to the communication quality between the second network device and the second terminal, the first network device can communicate with the first terminal using the first resource without affecting the communication between the second network device and the second terminal, so as to guarantee the communication quality of the second terminal.

[0034] In a possible implementation, when the usage condition of the first resource is related to the communication quality between the first network device and the first terminal, the usage condition of the first resource includes one or more of the following conditions: condition 1: the first terminal can correctly receive a signal sent by the first network device using the first resource; or condition 2: the first network device can correctly receive a signal sent by the first terminal using the first resource.

[0035] Based on the possible implementation manners above, the first terminal can correctly receive the signal transmitted by the first network device by using the first resource, and / or the first network device can correctly receive the signal transmitted by the first terminal by using the first resource.

[0036] In a possible implementation manner, the usage condition of the first resource includes condition 1, and the usage condition of the first resource being satisfied includes one or more of the following: the first reception power is less than or equal to a first threshold, the first reception power being a power at which the first terminal receives a signal transmitted by the second network device or the second terminal; or a difference between the second reception power and the first reception power is greater than or equal to a second threshold, the second reception power being a power at which the first terminal receives a signal transmitted by the first network device; or a distance between the first terminal and the first network device is less than or equal to a first value; or the second terminal is located outside a first area in which the first terminal is located.

[0037] Based on the possible implementation manners above, the first terminal can correctly receive the signal transmitted by the first network device by using the first resource in one or more of the manners above.

[0038] In a possible implementation manner, the first reception power and / or the second reception power are further used to determine one or more of the following information: a transmission power at which the first network device transmits a signal to the first terminal by using the first resource; or a transmission power at which the second network device transmits a signal to the second terminal by using the first resource; or a transmission power at which the second terminal transmits a signal to the second network device by using the first resource.

[0039] Based on the possible implementation manners above, the one or more transmission powers can be determined based on the first reception power and / or the second reception power, to guarantee the communication quality of downlink communication of the first terminal on the first resource.

[0040] In a possible implementation, the usage condition of the first resource comprises condition 2, and the usage condition of the first resource is satisfied when one or more of the following conditions is met: the third received power is less than or equal to a third threshold, the third received power being a power at which the first network device receives a signal transmitted by the second network device or the second terminal; or, a difference between the fourth received power and the third received power is greater than or equal to a fourth threshold, the fourth received power being a power at which the first network device receives a signal transmitted by the first terminal; or, a distance between the first terminal and the first network device is less than or equal to a second value; or, an included angle between a first direction and a second direction is greater than or equal to a first threshold, the first direction being a direction of a line connecting the second network device and the first network device, and the second direction being a direction in which the first network device communicates with the first terminal; or, an included angle between a third direction and the second direction is greater than or equal to a second threshold, the third direction being a direction of a line connecting the second terminal and the first network device, and the second terminal being located outside a second area, the second area being related to a position of the first terminal and / or a position of the first network device; or, a height of the second network device is within a first height range, and a power of a signal transmitted by a network device within the first height range and reaching the first network device is less than or equal to a fifth threshold.

[0041] Based on the above possible implementation, the first network device can correctly receive the signal transmitted by the first terminal using the first resource in one or more of the above manners.

[0042] In a possible implementation, the third received power and / or the fourth received power are further used to determine one or more of the following information: a transmission power of the first terminal when transmitting a signal to the first network device using the first resource; or, a transmission power of the second network device when transmitting a signal to the second terminal using the first resource; or, a transmission power of the second terminal when transmitting a signal to the second network device using the first resource.

[0043] Based on the above possible implementation, one or more of the above transmission powers can be determined based on the third received power and / or the fourth received power, so as to guarantee a communication quality of uplink communication of the first terminal on the first resource.

[0044] In a possible implementation, if the usage condition of the first resource is related to a communication quality between the second network device and the second terminal, the usage condition of the first resource comprises one or more of the following conditions: condition 3: the second terminal can correctly receive a signal transmitted by the second network device using the first resource; or, condition 4: the second network device can correctly receive a signal transmitted by the second terminal using the first resource.

[0045] Based on the possible implementation manners above, the second terminal can correctly receive the signal transmitted by the second network device by using the first resource, and / or the second network device can correctly receive the signal transmitted by the second terminal by using the first resource.

[0046] In a possible implementation manner, the usage condition of the first resource comprises one or more of condition 3 or condition 4, and the usage condition being met comprises one or more of the following: the power of the signal transmitted by the first network device by using the first resource is less than or equal to a sixth threshold value; or the power of the signal transmitted by the first network device in the fourth direction by using the first resource is less than or equal to a seventh threshold value; or the power of the signal transmitted by the first network device to the third area where the second terminal is located by using the first resource is less than or equal to an eighth threshold value; or the power of the signal transmitted by the terminal using the first resource is less than or equal to a ninth threshold value; or the power of the signal transmitted by the terminal in the third area by using the first resource is less than or equal to a tenth threshold value; or the terminal using the first resource is located outside the third area.

[0047] Based on the possible implementation manners above, the second terminal can correctly receive the signal transmitted by the second network device by using the first resource, and / or the second network device can correctly receive the signal transmitted by the second terminal by using the first resource.

[0048] In a possible implementation manner, the first resource comprises one or more of the following: a time resource, a frequency resource, a space resource or a polarization resource.

[0049] Based on the possible implementation manners above, the communication quality of the communication between the first terminal and the first network device on the various resources above can be guaranteed.

[0050] In a possible implementation manner, the first network device is a network device in a non-terrestrial network, and the second network device is a network device in a terrestrial network; or the first network device is a network device in a terrestrial network, and the second network device is a network device in a non-terrestrial network.

[0051] Based on the possible implementation manners above, the method provided in the first aspect can be applied to a scenario of interaction between a network device (such as a satellite) in a non-terrestrial network and a network device (such as a ground base station) in a terrestrial network, such as a scenario of spectrum sharing between a satellite and a ground base station.

[0052] In a possible implementation manner, the method further comprises: transmitting, to the first network device, resource configuration information, the resource configuration information indicating one or more of the following resource types: a conditionally available resource type, a hard resource type, a soft resource type or an unavailable resource type, and the resource type of the first resource being the conditionally available resource type.

[0053] Based on the possible implementation manners above, the resource type corresponding to the resource can be indicated to the first network device, so as to determine whether the resource can be used by the first network device. The resource corresponding to the conditional available resource type can be determined to be available according to the use condition, the resource corresponding to the hard resource type is a fixed available resource, the resource corresponding to the soft resource type can be determined to be available according to the indication of the second network device, and the resource corresponding to the unavailable resource type is an unavailable resource.

[0054] In a third aspect, a communication apparatus is provided for implementing the method in the first aspect. The communication apparatus can be the first network device in the first aspect. The communication apparatus includes modules, units, or means corresponding to the above-described method, which can be implemented by hardware, software, or by a combination of hardware and software. The hardware or software includes one or more modules or units corresponding to the above-described functions.

[0055] In a possible implementation manner, the communication apparatus can include a processing module and an interface module. The processing module can be configured to perform the processing functions in the first aspect and any possible implementation manners thereof. The processing module can be, for example, a processor. The interface module, which can also be referred to as an interface unit, is configured to perform the sending and / or receiving functions in the first aspect and any possible implementation manners thereof. The interface module can be composed of an interface circuit, a transceiver, a transceiver, or a communication interface.

[0056] In a possible implementation manner, the processing module is configured to obtain a use condition of a first resource, and the interface module is configured to communicate with a first terminal by using the first resource if the use condition is met. The use condition is related to a communication quality between the first network device and the first terminal, and / or the use condition is related to a communication quality between a second network device and a second terminal.

[0057] In a possible implementation manner, if the use condition is related to the communication quality between the first network device and the first terminal, the use condition includes one or more of the following conditions: condition 1: the first terminal can correctly receive a signal sent by the first network device by using the first resource; or condition 2: the first network device can correctly receive a signal sent by the first terminal by using the first resource.

[0058] In a possible implementation, the usage condition comprises the condition 1, and the satisfaction of the usage condition comprises one or more of the following: the first reception power is less than or equal to a first threshold, the first reception power being a power at which the first terminal receives a signal transmitted by the second network device or the second terminal; or a difference between the second reception power and the first reception power is greater than or equal to a second threshold, the second reception power being a power at which the first terminal receives a signal transmitted by the first network device; or a distance between the first terminal and the first network device is less than or equal to a first value; or the second terminal is located outside a first area in which the first terminal is located.

[0059] In a possible implementation, the first reception power and / or the second reception power are further used to determine one or more of the following: a transmission power at which the first network device transmits a signal to the first terminal by using the first resource; or a transmission power at which the second network device transmits a signal to the second terminal by using the first resource; or a transmission power at which the second terminal transmits a signal to the second network device by using the first resource.

[0060] In a possible implementation, the usage condition comprises the condition 2, and the satisfaction of the usage condition comprises one or more of the following: the third reception power is less than or equal to a third threshold, the third reception power being a power at which the first network device receives a signal transmitted by the second network device or the second terminal; or a difference between the fourth reception power and the third reception power is greater than or equal to a fourth threshold, the fourth reception power being a power at which the first network device receives a signal transmitted by the first terminal; or a distance between the first terminal and the first network device is less than or equal to a second value; or an included angle between a first direction and a second direction is greater than or equal to a first threshold value, the first direction being a direction of a line connecting the second network device and the first network device, and the second direction being a direction in which the first network device communicates with the first terminal; or an included angle between a third direction and the second direction is greater than or equal to a second threshold value, the third direction being a direction of a line connecting the second terminal and the first network device; or the second terminal is located outside a second area, the second area being related to a position of the first terminal and / or a position of the first network device; or a height of the second network device is located in a first height range, a power of a signal transmitted by a network device in the first height range and reaching the first network device being less than or equal to a fifth threshold value.

[0061] In a possible implementation, the third received power and / or the fourth received power are further used to determine one or more of the following: a transmission power of the first terminal for transmitting a signal to the first network device using the first resource; or a transmission power of the second network device for transmitting a signal to the second terminal using the first resource; or a transmission power of the second terminal for transmitting a signal to the second network device using the first resource.

[0062] In a possible implementation, if the usage condition is related to a communication quality between the second network device and the second terminal, the usage condition comprises one or more of the following: condition 3: the second terminal can correctly receive a signal transmitted by the second network device using the first resource; or condition 4: the second network device can correctly receive a signal transmitted by the second terminal using the first resource.

[0063] In a possible implementation, the usage condition comprises one or more of condition 3 or condition 4, and the usage condition being met comprises one or more of the following: a power of the first network device for transmitting a signal using the first resource is less than or equal to a sixth threshold value; or a power of the first network device for transmitting a signal in a fourth direction using the first resource is less than or equal to a seventh threshold value; or a power of the first network device for transmitting a signal to a third region in which the second terminal is located using the first resource is less than or equal to an eighth threshold value; or a power of a terminal using the first resource for transmitting a signal is less than or equal to a ninth threshold value; or a power of a terminal in the third region for transmitting a signal using the first resource is less than or equal to a tenth threshold value; or the terminal using the first resource is located outside the third region.

[0064] In a possible implementation, the processing module is specifically configured to receive, by the interface module, the information of the usage condition from the second network device.

[0065] In a possible implementation, the first resource comprises one or more of the following: a time resource, a frequency resource, a space resource, or a polarization resource.

[0066] In a possible implementation, the first network device is a network device in a non-terrestrial network, and the second network device is a network device in a terrestrial network; or the first network device is a network device in a terrestrial network, and the second network device is a network device in a non-terrestrial network.

[0067] In a possible implementation, the interface module is further configured to receive, from the second network device, resource configuration information, the resource configuration information indicating one or more of the following resource types: a conditionally available resource type, a hard resource type, a soft resource type, or an unavailable resource type, and a resource type of the first resource is the conditionally available resource type.

[0068] In a fourth aspect, a communication apparatus is provided for implementing the method in the second aspect. The communication apparatus can be the second network apparatus in the second aspect. The communication apparatus comprises modules, units, or means for performing the corresponding functions of the method. The modules, units, or means can be implemented by hardware, software, or by a combination of hardware and software.

[0069] In a possible implementation, the communication apparatus can include a processing module and an interface module. The processing module can be configured to perform the processing functions in the second aspect and any possible implementation of the second aspect. The processing module can be, for example, a processor. The interface module, which can also be referred to as an interface unit, can be configured to perform the sending and / or receiving functions in the second aspect and any possible implementation of the second aspect. The interface module can be implemented by an interface circuit, a transceiver, a transceiver, or a communication interface.

[0070] In a possible implementation, the processing module is configured to obtain a usage condition of the first resource, and the interface module is configured to send information of the usage condition to the first network apparatus. The information of the usage condition is used by the first network apparatus to determine that the first network apparatus communicates with the first terminal using the first resource when the usage condition is met. The usage condition is related to a communication quality between the first network apparatus and the first terminal, and / or the usage condition is related to a communication quality between the second network apparatus and the second terminal.

[0071] In a possible implementation, when the usage condition is related to the communication quality between the first network apparatus and the first terminal, the usage condition includes one or more of the following conditions: condition 1: the first terminal correctly receives a signal sent by the first network apparatus using the first resource; or condition 2: the first network apparatus correctly receives a signal sent by the first terminal using the first resource.

[0072] In a possible implementation, the usage condition includes the condition 1, and the meeting of the usage condition includes one or more of the following: a first received power is less than or equal to a first threshold, the first received power being a power at which the first terminal receives a signal sent by the second network apparatus or the second terminal; or a difference between a second received power and the first received power is greater than or equal to a second threshold, the second received power being a power at which the first terminal receives a signal sent by the first network apparatus; or a distance between the first terminal and the first network apparatus is less than or equal to a first value; or the second terminal is located outside a first area in which the first terminal is located.

[0073] In a possible implementation, the first reception power and / or the second reception power are further used to determine one or more of the following: a transmission power of the first network device for transmitting a signal to the first terminal using the first resource; or a transmission power of the second network device for transmitting a signal to the second terminal using the first resource; or a transmission power of the second terminal for transmitting a signal to the second network device using the first resource.

[0074] In a possible implementation, the usage condition comprises the condition 2, and the meeting of the usage condition comprises one or more of the following: a third reception power is less than or equal to a third threshold, the third reception power being a power at which the first network device receives a signal transmitted by the second network device or the second terminal; or a difference between a fourth reception power and the third reception power is greater than or equal to a fourth threshold, the fourth reception power being a power at which the first network device receives a signal transmitted by the first terminal; or a distance between the first terminal and the first network device is less than or equal to a second value; or an included angle between a first direction and a second direction is greater than or equal to a first threshold, the first direction being a direction of a line connecting the second network device and the first network device, and the second direction being a direction in which the first network device communicates with the first terminal; or an included angle between a third direction and the second direction is greater than or equal to a second threshold, the third direction being a direction of a line connecting the second terminal and the first network device, the second terminal being located outside a second region, the second region being related to a position of the first terminal and / or a position of the first network device; or a height of the second network device is within a first height range, a power of a signal transmitted by a network device within the first height range and reaching the first network device being less than or equal to a fifth threshold.

[0075] In a possible implementation, the third reception power and / or the fourth reception power are further used to determine one or more of the following: a transmission power of the first terminal for transmitting a signal to the first network device using the first resource; or a transmission power of the second network device for transmitting a signal to the second terminal using the first resource; or a transmission power of the second terminal for transmitting a signal to the second network device using the first resource.

[0076] In a possible implementation, if the usage condition is related to a communication quality between the second network device and the second terminal, the usage condition comprises one or more of the following: a condition 3: the second terminal can correctly receive a signal transmitted by the second network device using the first resource; or a condition 4: the second network device can correctly receive a signal transmitted by the second terminal using the first resource.

[0077] In a possible implementation, the usage condition comprises one or more of condition 3 or condition 4, and the meeting the usage condition comprises one or more of: the first network device transmitting a signal by using the first resource with a power less than or equal to a sixth threshold value; or the first network device transmitting a signal in the fourth direction by using the first resource with a power less than or equal to a seventh threshold value; or the first network device transmitting a signal to the third area where the second terminal is located by using the first resource with a power less than or equal to an eighth threshold value; or a terminal using the first resource transmitting a signal with a power less than or equal to a ninth threshold value; or a terminal in the third area transmitting a signal by using the first resource with a power less than or equal to a tenth threshold value; or a terminal using the first resource is located outside the third area.

[0078] In a possible implementation, the first resource comprises one or more of: a time resource, a frequency resource, a space resource, or a polarization resource.

[0079] In a possible implementation, the first network device is a network device in a non-terrestrial network, and the second network device is a network device in a terrestrial network; or the first network device is a network device in a terrestrial network, and the second network device is a network device in a non-terrestrial network.

[0080] In a possible implementation, the interface module is further configured to send, to the first network device, resource configuration information indicating one or more of: a conditionally available resource type, a hard resource type, a soft resource type, or an unavailable resource type, and the first resource is of the conditionally available resource type.

[0081] In a fifth aspect, a communication apparatus is provided, which comprises: a processor; and a memory configured to store a computer program (or computer executable instructions) for causing the communication apparatus to perform the method according to any one of the preceding aspects. The communication apparatus can be the first network device in the first aspect; or the communication apparatus can be the second network device in the second aspect. Optionally, the number of processors can be one or more.

[0082] In a possible implementation, the communication apparatus further comprises a memory.

[0083] In a possible implementation, the processor and the memory are integrated together; or the memory is independent of the processor.

[0084] In a possible implementation, the communication device further includes a communication interface for the communication device to communicate with other devices, such as transmitting or receiving data and / or signals. For example, the communication interface can be a transceiver, a circuit, a bus, a module, or other types of communication interfaces.

[0085] In a possible implementation, the processor and / or the memory further include an artificial intelligence (AI) module for implementing AI-related functions. The AI module can implement AI functions in a software, hardware, or software and hardware combined manner. For example, the AI module includes a radio access network (RAN) intelligent controller (RIC) module. For example, the AI module can be a near-real-time RIC or a non-real-time RIC.

[0086] In a possible implementation, the communication device is a chip or a chip system. Optionally, when the communication device is a chip system, the communication device can be composed of a chip or can include a chip and other discrete devices.

[0087] In a sixth aspect, a communication device is provided, including: a processor and an interface circuit; the interface circuit is configured to receive a computer program or instructions and transmit to the processor; the processor is configured to execute the computer program or instructions, so that the communication device performs the method in any of the preceding aspects. The communication device can be the first network device in the first aspect; or the communication device can be the second network device in the second aspect. Optionally, the number of the processors can be one or more.

[0088] In a possible implementation, the processor further includes an AI module for implementing AI-related functions. The AI module can implement AI functions in a software, hardware, or software and hardware combined manner. For example, the AI module includes a RIC module. For example, the AI module can be a near-real-time RIC or a non-real-time RIC.

[0089] In a possible implementation, the communication device is a chip or a chip system. Optionally, when the communication device is a chip system, the communication device can be composed of a chip or can include a chip and other discrete devices.

[0090] In a seventh aspect, a computer readable storage medium is provided, which stores instructions, when the instructions are run on a computer, the computer can execute the method in any of the preceding aspects.

[0091] In an eighth aspect, a computer program product including instructions is provided, when the instructions are run on a computer, the computer can execute the method in any of the preceding aspects.

[0092] In a ninth aspect, a communication system is provided, which comprises a first network device configured to perform the method of the first aspect, and a second network device configured to perform the method of the second aspect.

[0093] The technical effects brought by any possible implementation of the third aspect to the ninth aspect can refer to the technical effects brought by any aspect of the first aspect to the second aspect or any possible implementation of any aspect, which will not be repeated here.

[0094] It can be understood that the schemes in the above aspects can be combined as long as the schemes are not contradictory. BRIEF DESCRIPTION OF DRAWINGS

[0095] FIG. 1 is a schematic diagram of a communication system architecture provided by the present application;

[0096] FIG. 2 is a schematic diagram of a hardware structure of a communication device provided by the present application;

[0097] FIG. 3 is a schematic diagram of a communication method provided by the present application;

[0098] FIG. 4 is a schematic diagram of a scenario of satellite and ground base station sharing spectrum provided by the present application;

[0099] FIG. 5 is a schematic diagram of resource types corresponding to time-frequency resources provided by the present application;

[0100] FIG. 6 is a schematic diagram of resource types corresponding to time-frequency resources provided by the present application;

[0101] FIG. 7 is a schematic diagram of a structure of a communication device provided by the present application. DETAILED DESCRIPTION

[0102] In order to solve the problem of signal interference in the multi-node spectrum sharing scenario, the present application provides a communication method. In the method, the first network device can communicate with the first terminal by using the first resource if the use condition of the first resource is met. The use condition of the first resource is related to the first communication quality (such as the communication quality between the first network device and the first terminal), and / or the use condition of the first resource is related to the second communication quality (such as the communication quality between the second network device and the second terminal).

[0103] It can be understood that when the use condition of the first resource is related to the first communication quality, the communication between the first network device and the first terminal can be prevented from being interfered by other network devices or other terminals, so as to improve the communication quality of the first terminal. When the use condition of the first resource is related to the second communication quality, the first network device and the first terminal can communicate by using the first resource without affecting the communication between the second network device and the second terminal, so as to guarantee the communication quality of the second terminal.

[0104] Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0105] The method provided by the present application can be used in various communication systems. For example, the communication system can be a universal mobile telecommunications system (UMTS) system, a long term evolution (LTE) system, a narrow band-internet of things (NB-IoT) system, a 5th generation (5G) communication system, a wireless fidelity (WiFi) system, a 3rd generation partnership project (3GPP) related communication system, a communication system evolved after 5G (such as a future communication system), or a system integrating multiple systems, etc., without limitation. The 5G can also be referred to as new radio (NR). The method provided by the present application will be described below taking the communication system 1000 shown in FIG. 1 as an example. FIG. 1 is merely a schematic diagram and does not constitute a limitation on the applicable scenarios of the technical solutions provided by the present application.

[0106] As shown in FIG. 1, an architecture diagram of a communication system 1000 provided by the present application is shown. In FIG. 1, the communication system 1000 can include a network device 101, a terminal 103 and a network device 102 in communication with the network device 101, and a terminal 104 in communication with the network device 102. Wherein the coverage range of the network device 101 and the coverage range of the network device 102 overlap in whole or in part, the network device 101 and the network device 102 can share a frequency spectrum. The coverage range of the network device 101 and the coverage range of the network device 102 partially overlap, which can be understood as the entire or partial coverage range of the network device 101 falling within the coverage range of the network device 102, or the entire or partial coverage range of the network device 102 falling within the coverage range of the network device 101. FIG. 1 is drawn taking the network device 102 having partial coverage range falling within the coverage range of the network device 101 as an example. The network device 101 and the network device 102 can provide wireless access services for terminals within their coverage ranges. For example, the network device 101 can provide wireless access services for the terminal 103 and the terminal 104, and the network device 102 can provide wireless access services for the terminal 104.

[0107] The network device in the present application, such as the network device 101 or the network device 102, is a device with wireless transceiving function, which can help terminals to realize wireless access. The network device is, for example, a node in a radio access network (RAN) or a node in an open RAN (O-RAN or ORAN). Therefore, the network device can also be referred to as a RAN node, an access network device, a RAN entity, or an access node, etc. The network device includes but is not limited to: an evolved Node B (eNB or e-NodeB) in LTE, an evolved Node B (ng-eNB) in next generation LTE, a base station (gNodeB or gNB) in NR, a transmitting point (TP) or a transmission receiving point (TRP), a base station in a subsequent evolution of 3GPP, a next generation Node B (gNB), a next generation base station in a communication system evolved after 5G, a base station in a future mobile communication system, a satellite, an access point (AP) in a WiFi system, a wireless relay node, a wireless backhaul node, an integrated access and backhaul (IAB) node, a network device in a non-terrestrial network (NTN) communication system, etc. The base station can be: a macro base station, a micro base station, a pico base station, a small station, a relay station, or a balloon station, etc. Multiple base stations can support the same type of network mentioned above, or support different types of networks mentioned above. The base station can include one or more co-sited or non-co-sited TRPs. The network device can also be a device that plays a base station function in device to device (D2D) communication, vehicle-to-everything (V2X) communication, unmanned aerial vehicle (UAV) communication, and machine communication. The network device can also be a wireless controller in a cloud radio access network (CRAN) scenario.The network device can also be a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), a radio unit (RU), a road side unit (RSU) with base station functions, a wired access gateway, or a core network network element, etc. The network device can also be a server, a wearable device, a machine communication device, or a vehicle-mounted device, etc. Hereinafter, the network device is taken as an example of a base station for description. The plurality of network devices can be base stations of the same type, or base stations of different types. The base station can communicate with the terminal, or communicate with the terminal through a relay station. The terminal can communicate with a plurality of base stations of different technologies, for example, the terminal can communicate with a base station supporting an LTE network, and can also communicate with a base station supporting a 5G network, and can also support dual connectivity with the base station of the LTE network and the base station of the 5G network.

[0108] In this application, the CU can complete the functions of the radio resource control (RRC) layer and the packet data convergence protocol (PDCP) layer of the base station. The CU can also complete the function of the service data adaptation protocol (SDAP) layer. The DU can complete the functions of the radio link control (RLC) layer and the medium access control (MAC) layer of the base station. The DU can also complete part of the physical layer or all of the physical layer functions. The RU can be used to implement the functions of receiving and transmitting radio frequency signals. The CU and the DU can be separately arranged, or can be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH). The BBU and the RRU can be placed in different places, for example, the RRU is placed in an area with high traffic, and the BBU is placed in a central machine room. The BBU and the RRU can also be placed in the same machine room, or the BBU and the RRU can also be different components under the same rack, without limitation. It can be understood that the CU can be divided into network devices in the access network, or the CU can be divided into network devices in the core network, which is not limited here.

[0109] In different systems, CU (or CU-CP and CU-UP), DU or RU can also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, CU can also be referred to as O-CU (open CU), DU can also be referred to as O-DU, CU-CP can also be referred to as O-CU-CP, CU-UP can also be referred to as O-CU-UP, and RU can also be referred to as O-RU. For the convenience of description, the CU, CU-CP, CU-UP, DU and RU are taken as examples for description in this application. Any one of the CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0110] For example, in some scenarios, the network device 101 is a network device in an NTN, and the network device 102 is a network device in a terrestrial network (TN), for example, the network device 101 is a satellite, and the network device 102 is a ground base station. Alternatively, the network device 101 and the network device 102 are both network devices in an NTN, for example, the network device 101 is a high-orbit satellite, and the network device 102 is a low-orbit satellite. Alternatively, the network device 101 and the network device 102 are both network devices in a TN, for example, the network device 101 and the network device 102 are both ground base stations. Optionally, the network device 101 and the network device 102 can also be applied to an IAB scenario. For example, the network device 101 is an IAB-donor, and the network device 102 is an IAB-node; or the network device 101 is an IAB-node, and the network device 102 is an IAB-donor; or the network device 101 and the network device 102 are both IAB-nodes, and one of them is a parent node of the other. The IAB-node can also be referred to as a relay node (RN). The link between the IAB-node and the terminal is referred to as an access link or a wireless access link, and the link between the IAB-nodes is referred to as a backhaul link or a wireless backhaul link. The IAB-node can provide wireless access services for the terminal, and the traffic data of the terminal is transmitted by the IAB-node through the wireless backhaul link to the IAB-donor. When the IAB-node provides services for the terminal, the IAB-node can be regarded as an IAB distributed unit (IAB-DU); when the IAB-node faces a donor gNodeB (DgNB), the IAB-node can also be regarded as an IAB mobile termination (IAB-MT).

[0111] A terminal in this application, for example, terminal 103 or terminal 104, is a device with wireless transceiving function. The terminal can be deployed on land, including indoors, outdoors, handheld or vehicle-mounted; can also be deployed on water surface (such as ships, etc.); and can also be deployed in the air (such as airplanes, balloons and satellites, etc.). The terminal can also be referred to as a terminal device, which can be a user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc., or a device for providing voice or data connectivity to a user. Among them, the UE includes a handheld device with wireless communication function, a vehicle-mounted device (for example, a car, a bicycle, an electric vehicle, an airplane, a ship, a train, a high-speed rail, etc.), a wearable device (for example, a smart watch, a smart bracelet, a pedometer, etc.) or a computing device. Exemplarily, the UE can be a mobile phone, a tablet computer, a notebook computer, a palm computer, a mobile internet device (MID), a satellite terminal or a computer with wireless transceiving function. The UE can also be a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless modem, a smart point of sale (POS) machine, a customer-premises equipment (CPE), a smart robot, a mechanical arm, a workshop device, a smart home device (for example, a refrigerator, a television, an air conditioner, an electric meter, etc.), a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart traffic, a wireless terminal in smart city, a wireless terminal in smart home, a vehicle-mounted terminal, a road side unit (RSU) with terminal function, or a flight device (for example, a smart robot, a hot air balloon, a drone, an airplane), etc. The terminal can also be other devices with terminal function, for example, the terminal can also be a device with terminal function in D2D communication.

[0112] By way of example, and without limitation, in the present application, a terminal can be a wearable device. A wearable device can also be referred to as a wearable smart device, which is a general term for devices that are designed and developed by applying wearable technology to daily wear, such as glasses, gloves, watches, clothing, and shoes, etc. A wearable device is a portable device that is directly worn on the body, or integrated into the clothes or accessories of a user. For example, a wearable device is not only a hardware device, but also a device that realizes powerful functions through software support and data interaction, cloud interaction. Broadly, a wearable smart device includes devices with full functions and large sizes, which can realize complete or partial functions without relying on a smart phone, such as smart watches or smart glasses, etc., and devices that focus on a certain type of application function and need to be used in cooperation with other devices, such as smart phones, such as various types of smart wristbands, smart jewelry, etc.

[0113] In the present application, a terminal can be a terminal in an internet of things (IoT) system, which is an important part of future information technology development, and its main technical feature is to connect objects through communication technology and network, so as to realize an intelligent network of human-machine interconnection and object-object interconnection. The terminal in the present application can be a terminal in machine type communication (MTC).

[0114] The terminal of the present application can be an on-board module, an on-board module group, an on-board component, an on-board chip, an on-board unit (OBU) or a telematics box (T-BOX) built into a vehicle as one or more components or units, and the vehicle can implement the method of the present application through the built-in on-board module, on-board module group, on-board component, on-board chip, on-board unit or T-BOX. The terminal can also be a whole vehicle device. Therefore, the present application can be applied to the Internet of Vehicles, such as vehicle to everything (V2X), long term evolution vehicle (LTE-V), vehicle to vehicle (V2V), etc.

[0115] It can be understood that in some scenarios, the roles of network devices and terminals are relative. For example, a helicopter or a drone that is usually configured as a terminal can also be configured as a mobile base station, and a device that accesses the RAN through the helicopter or the drone is configured as a terminal.

[0116] It can be understood that the communication system 1000 shown in FIG. 1 is merely used for example and is not used to limit the technical solutions of the present application. It should be understood by those skilled in the art that, in the specific implementation process, the communication system 1000 can also include other devices, and the number of network devices and terminals can also be determined according to the specific needs, and is not limited.

[0117] Optionally, the network device in FIG. 1 of the present application can also be referred to as a communication device, which can be a general-purpose device or a special-purpose device, which is not limited in the present application.

[0118] Optionally, the related functions of the network device in FIG. 1 of the present application can be realized by one device, or can be realized by multiple devices together, or can be realized by one or more functional modules in a device, which is not limited in the present application. It can be understood that the above functions can be network elements in hardware devices, or software functions running on special hardware, or a combination of hardware and software, or virtualized functions instantiated on a platform (for example, a cloud platform).

[0119] In specific implementation, the network device in FIG. 1 of the present application can adopt the composition structure shown in FIG. 2, or include the components shown in FIG. 2. FIG. 2 shows a hardware structure diagram of a communication device applicable to the present application. It can be understood that the communication device 20 includes means in the form of, for example, modules, units, elements, circuits, or interfaces, which are appropriately configured together to execute the solutions provided by the present application. For example, the communication device 20 includes one or more processors 201 for implementing the methods provided by the present application.

[0120] The processor 201 can be a general-purpose processor or a special-purpose processor. For example, the processor 201 can be a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device 20 (such as a network device or a chip), execute software programs, and process data of the software programs. Optionally, in one design, the processor 201 can include a program 205 (which can also be referred to as code or instructions sometimes), and the program 205 can be run on the processor 201 to enable the communication device 20 to execute the methods described in the following embodiments. In another possible design, the communication device 20 includes a circuit (not shown in FIG. 2) for implementing the functions of the first network device or the second network device in the following embodiments.

[0121] Optionally, the communication apparatus 20 can include one or more memories 203. The memory 203 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM), a cache, or other type of dynamic storage device that can store information and instructions, and can be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM), or other optical disc storage, a magnetic disk storage or other magnetic storage devices, or any other medium capable of storing instructions or data that can be accessed by a computer, but not limited to. The memory provided in the present application can generally be non-volatile. Optionally, the memory 203 has a program 207 (which can also be referred to as code or instructions) stored thereon, and the program 207 can be run on the processor 201, so that the communication apparatus 20 performs the methods described in the following method embodiments.

[0122] Optionally, the processor 201 can include an AI module 206, and / or the memory 203 can include an AI module 208. The above-mentioned AI module is used to implement AI-related functions. The AI module can be implemented by software, hardware, or a combination of software and hardware. For example, the AI module can include a RIC module. For example, the AI module can be a near-real-time RIC or a non-real-time RIC.

[0123] Optionally, the processor 201 and / or the memory 203 can also store data. The processor 201 and the memory 203 can be separately arranged, or can be integrated together.

[0124] Optionally, the communication apparatus 20 can also include a transceiver 202 and / or an antenna 204. The processor 201 can also be referred to as a processing unit, and controls the communication apparatus 20. The transceiver 202 can also be referred to as a transceiving unit, a transceiver, a transceiving circuit, or a transceiver, and is used to realize the transceiving function of the communication apparatus 20 through the antenna 204.

[0125] It can be understood that the constituent structure shown in FIG. 2 does not constitute a limitation on the communication apparatus, and the communication apparatus can include more or fewer components than those shown in FIG. 2, or combine certain components, or different component arrangements.

[0126] The method provided by the present application will be described below with reference to the drawings. Each network element in the following embodiments can have the components shown in FIG. 2, which will not be described herein.

[0127] It can be understood that the first network device and / or the second network device in the present application can perform some or all of the steps in the present application, which are only examples, and the present application can also perform other steps or variations of various steps. In addition, each step can be performed in a different order as presented in the present application, and it is possible that not all steps in the present application are performed.

[0128] It can be understood that the method provided in the present application is illustrated by taking the first network device and the second network device as the execution subject of the interaction, but the present application does not limit the execution subject of the interaction. For example, the first network device in the method provided in the following embodiments of the present application can also be a chip, a chip system, or a processor supporting the implementation of the method by the first network device, and can also be a logical node, a logical module or software capable of implementing all or part of the functions of the first network device. The second network device in the method provided in the following embodiments of the present application can also be a chip, a chip system, or a processor supporting the implementation of the method by the second network device, and can also be a logical node, a logical module or software capable of implementing all or part of the functions of the second network device.

[0129] As shown in FIG. 3, a communication method provided by the present application can include the following steps:

[0130] S301: The first network device acquires a usage condition of a first resource.

[0131] In the present application, the first network device can be any one of the network devices in the communication system 1000 shown in FIG. 1, such as the network device 101 or the network device 102. The first resource includes one or more of the following: a time resource (also referred to as a time domain resource), a frequency resource (also referred to as a frequency domain resource), a space resource, or a polarization resource. The time resource is a section of resource in the time domain, for example, the time resource includes one or more symbols, or includes one or more slots, or includes one or more subframes, or includes one or more frames, etc. The time resource can also include an absolute time, such as T milliseconds, where T is a positive number. The frequency resource is a section of resource in the frequency domain, for example, the frequency resource includes one or more subcarriers, or includes one or more resource elements (REs), or includes one or more resource blocks (RBs), etc. The space resource includes one or more of a beam resource (such as a beam direction or a beam angle, etc.) or a port resource (such as a port number). The polarization resource includes a polarization direction of an antenna, such as a horizontal polarization direction or a vertical polarization direction, etc.

[0132] In a possible design, the usage condition of the first resource (may also be referred to as the trigger condition of the first resource) is related to one or more of the first communication quality or the second communication quality.

[0133] In this application, the first communication quality is the communication quality between the first network device and the first terminal. The second communication quality is the communication quality between the second network device and the second terminal. The coverage of the second network device overlaps with the coverage of the first network device, and the second network device shares the spectrum with the first network device. The first terminal is a terminal in the coverage of the first network device, and the second terminal is a terminal in the coverage of the second network device. The first terminal and the second terminal can be the same or different. Taking the communication system 1000 shown in FIG. 1 as an example, the first network device is the network device 101, the second network device is the network device 102, the first terminal is the terminal 103, and the second terminal is the terminal 104; or the first network device is the network device 102, the second network device is the network device 101, the first terminal is the terminal 104, and the second terminal is the terminal 103. In some scenarios, the first network device is a network device in an NTN (such as a satellite), and the second network device is a network device in a TN (such as a ground base station); or the first network device is a network device in a TN (such as a ground base station), and the second network device is a network device in an NTN (such as a satellite).

[0134] In a possible implementation, if the usage condition of the first resource is related to the first communication quality, the usage condition of the first resource includes one or more of condition 1 or condition 2. Condition 1 is that the first terminal can correctly receive a signal sent by the first network device by using the first resource. Condition 2 is that the first network device can correctly receive a signal sent by the first terminal by using the first resource. It can be understood that condition 1 is used to guarantee the communication quality of downlink communication between the first terminal and the first network device by using the first resource, and condition 2 is used to guarantee the communication quality of uplink communication between the first terminal and the first network device by using the first resource.

[0135] In addition, the number of the first terminals is not limited in this application. For example, the number of the first terminals is N, and N is a positive integer. In this case, condition 1 is that each first terminal can correctly receive a signal sent by the first network device by using the first resource. Condition 2 is that the first network device can correctly receive a signal sent by each first terminal by using the first resource.

[0136] In a possible implementation, if the usage condition of the first resource is related to the second communication quality, the usage condition of the first resource comprises one or more of condition 3 or condition 4. Condition 3 is that the second terminal correctly receives a signal sent by the second network device using the first resource. Condition 4 is that the second network device correctly receives a signal sent by the second terminal using the first resource. It can be understood that condition 3 is used to guarantee the communication quality of the downlink communication between the second terminal and the second network device using the first resource, and condition 4 is used to guarantee the communication quality of the uplink communication between the second terminal and the second network device using the first resource.

[0137] In addition, the number of the second terminals is not limited in the present application. For example, the number of the second terminals is M, and M is a positive integer. In this case, condition 3 is that each of the second terminals correctly receives a signal sent by the second network device using the first resource. Condition 4 is that the second network device correctly receives a signal sent by each of the second terminals using the first resource.

[0138] In a possible implementation, if the usage condition of the first resource is related to the first communication quality and the second communication quality, the usage condition of the first resource comprises one or more of condition 1 or condition 2, and one or more of condition 3 or condition 4.

[0139] In the present application, the first network device can obtain the usage condition of the first resource from the local and / or from other devices.

[0140] For example, if the usage condition of the first resource is pre-stored in the first network device, the first network device can obtain the usage condition from the local. For example, when the first network device determines to guarantee the communication quality of the downlink communication between the first terminal and the first network device using the first resource, the first network device obtains condition 1. When the first network device determines to guarantee the communication quality of the uplink communication between the first terminal and the first network device using the first resource, the first network device obtains condition 2.

[0141] For example, if the usage condition of the first resource is pre-stored in the first network device and the second network device, or defined in the protocol, the second network device can indicate to the first network device which condition is used to determine whether to use the first resource. For example, the second network device can obtain the usage condition of the first resource, and send information of the usage condition of the first resource to the first network device. Correspondingly, the first network device receives the information of the usage condition of the first resource from the second network device. The information of the usage condition of the first resource is used to indicate the usage condition of the first resource, for example, the information includes an identifier of the usage condition of the first resource. Taking an example of identifiers of condition 1, condition 2, condition 3 and condition 4 as "00", "01", "10" and "11", if the information includes "00", it indicates that the information indicates condition 1, so the first network device can determine whether to use the first resource according to condition 1; if the information includes "01" and "11", it indicates that the information indicates condition 2 and condition 4, so the first network device can determine whether to use the first resource according to condition 2 and condition 4. Or, taking an example of identifiers of condition 1 and condition 2 as "0" and "1", if the information includes "0", it indicates that the information indicates condition 1, so the first network device can determine whether to use the first resource according to condition 1; if the information includes "1", it indicates that the information indicates condition 2, so the first network device can determine whether to use the first resource according to condition 2. Or, taking an example of identifiers of condition 1 and condition 3 as "0" and "1", if the information includes "0", it indicates that the information indicates condition 1, so the first network device can determine whether to use the first resource according to condition 1; if the information includes "1", it indicates that the information indicates condition 3, so the first network device can determine whether to use the first resource according to condition 3. Or, taking an example of identifiers of condition 3 and condition 4 as "0" and "1", if the information includes "0", it indicates that the information indicates condition 3, so the first network device can determine whether to use the first resource according to condition 3; if the information includes "0" and "1", it indicates that the information indicates condition 3 and condition 4, so the first network device can determine whether to use the first resource according to condition 3 and condition 4.

[0142] For example, condition 1 and condition 2 are pre-stored in the first network device, and condition 3 and condition 4 are pre-stored in the second network device. When the second network device determines to guarantee the communication quality of the second terminal using the first resource to communicate with the second network device, the second network device can send the information of the use condition of the first resource to the first network device to indicate condition 3 and condition 4. If the first network device also determines to guarantee the communication quality of the first terminal using the first resource to communicate with the first network device, the first network device determines whether to use the first resource according to condition 2, condition 3 and condition 4. When the second network device determines not to guarantee the communication quality of the second terminal using the first resource to communicate with the second network device, the second network device can not send the information of the use condition of the first resource. In this case, if the first network device determines to guarantee the communication quality of the first terminal using the first resource to communicate with the first network device, the first network device determines whether to use the first resource according to condition 2.

[0143] S302: The first network device communicates with the first terminal using the first resource when the use condition of the first resource is met.

[0144] In this application, the first network device can determine whether to use the first resource to communicate with the first terminal according to the use condition of the first resource, so as to dynamically use the first resource. Wherein, the first network device uses the first resource to communicate with the first terminal, including: the first network device uses the first resource to send a signal to the first terminal, or the first network device uses the first resource to receive a signal from the first terminal.

[0145] For example, taking the first network device using the first resource to send a signal to the first terminal as an example, if the first resource includes time-frequency resource 1, the first network device sends a signal to the first terminal on the time-frequency resource 1; if the first resource includes beam 1 of the first network device, the first network device sends a signal to the first terminal through the beam 1; if the first resource includes a horizontal polarization direction, the first network device sends a signal to the first terminal in the horizontal polarization direction of its antenna.

[0146] It can be understood that when the first network device uses the first resource to communicate with the first terminal, the application does not limit whether the second network device uses the first resource. For example, the second network device can determine whether to use the first resource according to the network state and the service demand of the terminal served by the second network device. If the second network device uses the first resource, it means that the first network device and the second network device can multiplex the first resource, so the utilization rate of the first resource can be improved, and the system capacity can be improved. If the second network device does not use the first resource, the influence of the second network device on the communication quality between the first terminal and the first network device can be avoided, so the communication quality between the first terminal and the first network device can be improved.

[0147] The following will introduce the way in which the first network device determines whether to use the first resource to communicate with the first terminal, in combination with the above conditions 1-4 respectively.

[0148] Case 1: The use condition of the first resource includes condition 1.

[0149] In one possible design, the use condition of the first resource includes one or more of the following: the first received power is less than or equal to the first threshold; or, the difference between the second received power and the first received power is greater than or equal to the second threshold; or, the distance between the first terminal and the first network device is less than or equal to the first value; or, the second terminal is located outside the first area where the first terminal is located.

[0150] In the application, the first received power is the power of the signal received by the first terminal from the second network device or the second terminal. The first received power can be the received power of a reference signal (RSRP) or the received power of other signals, which is not limited. The first received power is less than or equal to the first threshold, which means that the power of the signal received by the first terminal from the second network device or the second terminal is small, so the second network device or the second terminal will not affect the communication quality of the downlink communication of the first terminal with the first network device using the first resource. Therefore, the first network device determines to use the first resource to send signals to the first terminal. In other words, when deciding whether to use the first resource, the first network device can consider whether the downlink of the second network device or the uplink of the second terminal will affect the downlink communication of the first network device.

[0151] For example, in the satellite and terrestrial spectrum sharing scenario shown in FIG. 4, the first network device is a terrestrial base station 402, the second network device is a satellite 401, the first terminal is a terminal 404, and the second terminal is a terminal 406. The terminal 404 is located at the edge of the coverage of the satellite 401 and is far away from the terminal 406, so the first received power is small. The terrestrial base station 402 can use the first resource to send a signal to the terminal 404.

[0152] In a possible implementation, the first network device instructs the first terminal to perform interference measurement on the second resource, so that the first terminal obtains the first received power. For example, the second resource is a resource for channel state information interference measurement (CSI-IM). Accordingly, the first terminal can perform interference measurement according to the configuration of the first network device to obtain the first received power, and send the first received power to the first network device, so that the first network device determines whether to use the first resource according to the first received power. The second resource and the first resource can be the same or different. Optionally, the first network device can also instruct the first terminal to report the interference measurement result, such as the first received power.

[0153] Optionally, to ensure the effectiveness of the interference measurement, the first network device and the second network device can interact the configuration information of the interference measurement resource. For example, the first network device instructs the second network device to send or receive a signal on the second resource, so that when the first terminal performs interference measurement, the second network device sends a downlink signal to the second terminal on the second resource, or the second terminal sends an uplink signal to the second network device on the second resource. The downlink signal or the uplink signal can be a data signal or a reference signal, and is not limited.

[0154] In the present application, the second reception power is the power of the signal received by the first terminal from the first network device. The second reception power can be the reception power of RSRP or other signals, without limitation. When the difference between the second reception power and the first reception power is greater than or equal to the second threshold, it means that the power of the signal received by the first terminal from the first network device is much greater than the power of the signal received from the second network device or the second terminal, so the second network device or the second terminal will not affect the communication quality of the first terminal in downlink communication with the first network device using the first resource. Therefore, the first network device determines to send a signal to the first terminal using the first resource. In other words, when deciding whether to use the first resource, the first network device can consider whether the downlink of the second network device or the uplink of the second terminal will affect the downlink communication of the first network device.

[0155] For example, in the scenario of satellite-ground spectrum sharing shown in FIG. 4, if the second threshold is 10 dB, the first network device is the ground base station 403, the first terminal is the terminal 405, the second network device is the satellite 401, the second terminal is the terminal 406, and the difference between the power of the signal received by the terminal 405 from the ground base station 403 and the power of the signal received by the terminal 405 from the satellite 401 or the terminal 406 is 15 dB, then the ground base station 403 sends a signal to the terminal 405 using the first resource.

[0156] In a possible implementation, the first network device instructs the first terminal to perform interference measurement on the second resource and measure the signal sent by the first network device on the third resource, so that the first terminal obtains the first reception power and the second reception power. For example, the first network device configures the first terminal to perform interference measurement on the resource of CSI-IM and perform measurement on the synchronization signal block (SSB) or the channel state information reference signal (CSI-RS) on the third resource. Correspondingly, the first terminal can perform measurement according to the configuration of the first network device to obtain the first reception power and the second reception power, and send the first reception power and the second reception power to the first network device, so that the first network device determines whether to use the first resource according to the first reception power and the second reception power. The second resource and the first resource can be the same or different, and the third resource and the first resource can be the same or different. Optionally, the first network device can also instruct the first terminal to report the measurement result, such as the first reception power and the second reception power.

[0157] Optionally, in order to ensure the effectiveness of the interference measurement, the first network device and the second network device can interact the configuration information of the interference measurement resource. For details, reference can be made to the corresponding description in the foregoing.

[0158] In the present application, the distance between the first terminal and the first network device is less than or equal to the first value, which means that the distance between the first terminal and the first network device is relatively close, and thus the communication quality between them is relatively good. Therefore, the first network device determines to send signals to the first terminal using the first resource. Taking the satellite-ground spectrum sharing scenario shown in FIG. 4 as an example, the first network device is the ground base station 407, and the region 408 is a circular region with the ground base station 407 as the center and a radius of the first value. The terminals located in the region 408 have a distance less than the first value from the ground base station 407, and thus the first network device can send signals to all or part of these terminals using the first resource.

[0159] In the present application, the first region is a circular region or a spherical region with the first terminal as the center and r1 as the radius, or the first region is a rectangular region or a cuboid region with the first terminal as the center, a1 as the length, and b1 as the width (a1 and b1 can be the same or different), or the first region is a geographical region where the first terminal is located, such as a street or an administrative district where the first terminal is located, or the first region is a communication region where the first terminal is located, such as a cell or a tracking area where the first terminal is located. The second terminal is located outside the first region where the first terminal is located, which means that the distance between the second terminal and the first terminal is relatively far, and the second terminal will not affect the communication quality of the first terminal using the first resource to communicate with the first network device in downlink. Therefore, the first network device determines to send signals to the first terminal using the first resource. The position of the second terminal can be obtained by the first network device from the second network device, for example, the second network device sends the global navigation satellite system (GNSS) information of the second terminal to the first network device, which includes the position coordinates of the second terminal. Alternatively, the position of the second terminal can be measured by the first network device. If the second terminal is dual-connected with the first network device and the second network device, the position of the second terminal can also be reported by the second terminal to the first network device. The position of the first terminal can be reported by the first terminal or measured by the first network device.

[0160] Optionally, the first reception power and / or the second reception power are further used to determine one or more of the following information: the transmission power of the first network device sending signals to the first terminal using the first resource; or the transmission power of the second network device sending signals to the second terminal using the first resource; or the transmission power of the second terminal sending signals to the second network device using the first resource. The following will be described in detail.

[0161] A possible design is that the greater the first reception power, the greater the interference power received by the first terminal from the second network device or the second terminal. In order to improve the communication quality of the first terminal in downlink communication with the first network device using the first resource, the first network device can send a signal to the first terminal using a greater power on the first resource, and / or the second network device can send a signal to the second terminal using a smaller power on the first resource, and / or the second terminal can send a signal to the second network device using a smaller power on the first resource. Optionally, the first network device indicates to the second network device to send a signal using a smaller power on the first resource; or the first network device indicates to the second network device to send a signal using a smaller power on the first resource by the second terminal, so that the second network device indicates the second terminal to send a signal using a smaller power on the first resource; or the first network device indicates to the second terminal to send a signal using a smaller power on the first resource. The smaller the first reception power, the smaller the interference power received by the first terminal from the second network device or the second terminal, and the first network device can send a signal to the first terminal using a smaller power on the first resource to save power consumption and reduce interference of the signal to other terminals. The following is an example of using the first reception power to determine the transmission power of the first network device to send a signal to the first terminal using the first resource.

[0162] As an example, different power intervals are divided, and the first network device has different transmission powers corresponding to different power intervals. Taking dividing two power intervals as an example, when the first reception power is in power interval 1, the transmission power of the first network device is greater, and when the first reception power is in power interval 2, the transmission power of the first network device is smaller. Wherein, the minimum power of power interval 1 is greater than or equal to the maximum power of power interval 2. Taking dividing three power intervals as an example, when the first reception power is in power interval 1, the transmission power of the first network device is P1, when the first reception power is in power interval 2, the transmission power of the first network device is P2, and when the first reception power is in power interval 3, the transmission power of the first network device is P3. Wherein, P1>P2>P3, the minimum power of power interval 1 is greater than or equal to the maximum power of power interval 2, and the minimum power of power interval 2 is greater than or equal to the maximum power of power interval 3. The above P1, P2 and P3 can be preset.

[0163] As another example, the transmit power of the first network device is determined according to the first received power. For example, the transmit power of the first network device is equal to (the first received power + T1). T1 can be a fixed value, for example, 10 dB. Alternatively, T1 can be set as needed, for example, T1 can be set according to the service requirement of the first terminal. For example, if the service requirement of the first terminal requires a high throughput, T1 can be set to be larger, such as 20 dB, and if the service requirement of the first terminal requires a low throughput, T1 can be set to be smaller, such as 5 dB.

[0164] A possible design, the smaller the difference between the second received power and the first received power, the smaller the difference between the power of the signal received by the first terminal from the first network device and the power of the signal received by the first terminal from the second network device or the second terminal. In order to improve the communication quality of the first terminal using the first resource to communicate with the first network device, the first network device can use a larger power to send a signal to the first terminal on the first resource, and / or the second network device can use a smaller power to send a signal to the second terminal on the first resource, and / or the second terminal can use a smaller power to send a signal to the second network device on the first resource. Alternatively, the first network device indicates to the second network device to use a smaller power to send a signal on the first resource; or the first network device indicates to the second network device to instruct the second terminal to use a smaller power to send a signal on the first resource, so that the second network device instructs the second terminal to use a smaller power to send a signal on the first resource; or the first network device indicates to the second terminal to use a smaller power to send a signal on the first resource. The larger the difference between the second received power and the first received power, the larger the difference between the power of the signal received by the first terminal from the first network device and the power of the signal received by the first terminal from the second network device or the second terminal. The first network device can use a smaller power to send a signal to the first terminal on the first resource to save power consumption and reduce interference of the signal to other terminals. The following is an example of using the first received power and the second received power to determine the transmit power of the first network device to send a signal to the first terminal on the first resource.

[0165] As an example, different power intervals are divided, and the first network device has different transmission power corresponding to different power intervals. Taking dividing two power intervals as an example, when the power difference (i.e. the difference between the second received power and the first received power) is in power interval 1, the first network device has larger transmission power, and when the power difference is in power interval 2, the first network device has smaller transmission power. The maximum power of the power interval 1 is less than or equal to the minimum power of the power interval 2. Taking dividing three power intervals as an example, when the power difference is in power interval 1, the first network device has transmission power P1, when the power difference is in power interval 2, the first network device has transmission power P2, and when the power difference is in power interval 3, the first network device has transmission power P3. P1>P2>P3, the maximum power of the power interval 1 is less than or equal to the minimum power of the power interval 2, and the maximum power of the power interval 2 is less than or equal to the minimum power of the power interval 3. The P1, P2 and P3 can be preset.

[0166] In a possible design, the smaller the second received power, the worse the communication quality between the first network device and the first terminal. In order to improve the communication quality of the first terminal in downlink communication with the first network device using the first resource, the first network device can transmit a signal to the first terminal using larger power on the first resource, and / or the second network device can transmit a signal to the second terminal using smaller power on the first resource, and / or the second terminal can transmit a signal to the second network device using smaller power on the first resource. Optionally, the first network device indicates to the second network device to transmit a signal using smaller power on the first resource; or the first network device indicates to the second network device to instruct the second terminal to transmit a signal using smaller power on the first resource, so that the second network device instructs the second terminal to transmit a signal using smaller power on the first resource; or the first network device indicates to the second terminal to transmit a signal using smaller power on the first resource. The larger the second received power, the better the communication quality between the first network device and the first terminal, and the first network device can transmit a signal to the first terminal using smaller power on the first resource to save power consumption and reduce interference of the signal to other terminals. The following is described taking the second received power for determining transmission power of the first network device in transmitting a signal to the first terminal using the first resource as an example.

[0167] As an example, different power intervals are divided, and the first network device has different transmission power corresponding to different power intervals. Taking dividing two power intervals as an example, when the second receiving power is located in the power interval 1, the transmission power of the first network device is small, and when the second receiving power is located in the power interval 2, the transmission power of the first network device is large. Wherein, the minimum power of the power interval 1 is greater than or equal to the maximum power of the power interval 2. Taking dividing three power intervals as an example, when the second receiving power is located in the power interval 1, the transmission power of the first network device is P1, when the second receiving power is located in the power interval 2, the transmission power of the second network device is P2, and when the first receiving power is located in the power interval 3, the transmission power of the first network device is P3. Wherein, P1

[0168] As another example, the transmission power P4 of the first network device for sending a signal to the first terminal by using the first resource is determined according to the second receiving power, for example, P4 = [P5 + (P7-P6)]. Wherein, P5 is the current transmission power of the first network device, P6 is the second receiving power, and P7 is the target receiving power, which can be preset.

[0169] It can be understood that the above-mentioned first threshold, second threshold, first value, r1, a1, b1, power interval 1, power interval 2 or power interval 3 and other parameters can be pre-set, or defined in the protocol, or can be set according to the needs, without limitation. Optionally, the second network device can indicate one or more of the above-mentioned parameters to the first network device.

[0170] Case 2: the use condition of the first resource includes condition 2.

[0171] A possible design is that the use condition of the first resource includes one or more of the following: the third receiving power is less than or equal to the third threshold; or, the difference between the fourth receiving power and the third receiving power is greater than or equal to the fourth threshold; or, the distance between the first terminal and the first network device is less than or equal to the second value; or, the included angle between the first direction and the second direction is greater than or equal to the first threshold value; or, the included angle between the third direction and the second direction is greater than or equal to the second threshold value; or, the second terminal is located outside the second area; or, the height of the second network device is located in the first height range.

[0172] In the present application, the third received power is the power of the signal received by the first network device from the second network device or the second terminal. The third received power can be the received power of RSRP or other signals, without limitation. When the third received power is less than or equal to the third threshold, it indicates that the power of the signal received by the first network device from the second network device or the second terminal is small, so the second network device or the second terminal will not affect the communication quality of the first network device using the first resource to communicate with the first terminal in uplink. Therefore, the first network device determines to receive the signal from the first terminal using the first resource. In other words, when deciding whether to use the first resource, the first network device can consider whether the downlink of the second network device or the uplink of the second terminal will affect the uplink communication of the first network device.

[0173] In one possible implementation, the first network device performs interference measurement on the fourth resource, or performs interference measurement in a direction associated with the communication with the first terminal using the fourth resource, to obtain the third received power, and determines whether to use the first resource according to the third received power. The fourth resource can be the same as or different from the first resource. The direction associated with the communication with the first terminal of the first network device is, for example, the direction of the beam used by the first network device to receive the signal of the first terminal.

[0174] Optionally, to ensure the effectiveness of the interference measurement, the first network device and the second network device can exchange configuration information of the interference measurement resource. For example, the first network device indicates to the second network device to transmit or receive a signal on the fourth resource, so as to ensure that the second network device transmits a downlink signal to the second terminal on the fourth resource or the second terminal transmits an uplink signal to the second network device on the fourth resource when the first network device performs the interference measurement. The above downlink signal or uplink signal can be a data signal or a reference signal.

[0175] In the present application, the fourth received power is the power of the signal received by the first network device from the first terminal. The fourth received power can be the received power of RSRP or other signals, without limitation. When the difference between the fourth received power and the third received power is greater than or equal to the fourth threshold, it indicates that the power of the signal received by the first network device from the first terminal is much greater than the power of the signal received by the first network device from the second network device or the second terminal, so the second network device or the second terminal will not affect the communication quality of the first network device using the first resource to communicate with the first terminal in uplink. Therefore, the first network device determines to receive the signal from the first terminal using the first resource. In other words, when deciding whether to use the first resource, the first network device can consider whether the downlink of the second network device or the uplink of the second terminal will affect the uplink communication of the first network device.

[0176] In one possible implementation, the first network device performs interference measurement on the fourth resource or performs interference measurement in a direction associated with the communication with the first terminal using the fourth resource to obtain a third received power. The first network device further measures a signal transmitted by the first terminal on a fifth resource to obtain a fourth received power. Subsequently, the first network device can determine whether to use the first resource according to the third received power and the fourth received power. The fourth resource can be the same as or different from the first resource, and the fifth resource can be the same as or different from the first resource.

[0177] Optionally, to ensure the effectiveness of the interference measurement, the first network device and the second network device can exchange configuration information of the interference measurement resource. For example, the first network device indicates to the second network device to transmit or receive a signal on the fourth resource.

[0178] In this application, the distance between the first terminal and the first network device is less than or equal to a second value, which means that the distance between the first terminal and the first network device is relatively short, and thus the communication quality between them is relatively good. Therefore, the first network device determines to receive the signal from the first terminal using the first resource. The second value can be the same as or different from the first value.

[0179] In this application, the first direction is the direction of the line connecting the second network device and the first network device, such as the incident direction of the signal from the second network device to the first network device. The second direction is the direction of the communication between the first network device and the first terminal, such as the direction of the first receiving beam of the first network device. The first receiving beam is used to receive the signal from the first terminal. The angle between the first direction and the second direction is greater than or equal to a first threshold value, which means that the incident direction of the signal from the second network device to the first network device is different from the communication direction of the first network device and the first terminal, so the second network device will not affect the communication quality of the first network device using the first resource to communicate with the first terminal in uplink. Therefore, the first network device determines to receive the signal from the first terminal using the first resource. In other words, when deciding whether to use the first resource, the first network device can consider whether the downlink of the second network device will affect the uplink communication of the first network device.

[0180] In a possible implementation, the second network device sends the location information of the second network device to the first network device, so that the first network device determines the first direction according to the location information. Taking a satellite as the second network device and a ground base station as the first network device as an example, the satellite can send ephemeris information of the satellite to the ground base station, where the ephemeris information can include location information of the satellite at different times. Correspondingly, the first network device receives the ephemeris information and determines the first direction according to the ephemeris information. The first network device can also measure the location of the first terminal or obtain the location of the first terminal from the first terminal, and determine the second direction according to the location of the first terminal. Subsequently, the first network device can determine whether to use the first resource according to the first direction and the second direction.

[0181] In the present application, the third direction is the direction of the line connecting the second terminal and the first network device, for example, the incident direction of the signal from the second terminal to the first network device. If the included angle between the third direction and the second direction is greater than or equal to the second threshold value, it means that the incident direction of the signal from the second terminal to the first network device is different from the communication direction of the first network device and the first terminal, so the second terminal will not affect the communication quality of the uplink communication of the first network device with the first terminal using the first resource. Therefore, the first network device determines to receive the signal from the first terminal using the first resource. In other words, when deciding whether to use the first resource, the first network device can consider whether the uplink of the second terminal will affect the uplink communication of the first network device.

[0182] In a possible implementation, the first network device obtains the location of the second terminal and the location of the first terminal, determines the third direction according to the location of the second terminal, determines the second direction according to the location of the first terminal, and determines whether to use the first resource according to the third direction and the second direction. The manner in which the first network device obtains the location of the second terminal and the manner in which the first network device obtains the location of the first terminal can refer to the corresponding descriptions in the foregoing.

[0183] In the present application, the second region is related to the position of the first terminal and / or the position of the first network device. For example, the second region is an elliptical region with the position of the first terminal and the position of the first network device as the focus, the long axis with a length of c and the short axis with a length of d, or the second region is a geographical region where the first terminal and the first network device are located, such as a street or an administrative region where the first terminal and the first network device are located, or the second region is a circular region or a spherical region with the first terminal (or the first network device) as the center and r2 as the radius, or the second region is a rectangular region or a cuboid region with the first terminal (or the first network device) as the center, a2 as the length and b2 as the width (a2 and b2 can be the same or different), or the second region is a geographical region where the first terminal (or the first network device) is located, such as a street or an administrative region where the first terminal (or the first network device) is located, or the second region is a communication region where the first terminal is located, such as a cell or a tracking area where the first terminal is located. The second terminal is located outside the second region, which means that the second terminal is far away from the first terminal and / or the first network device, so the second terminal will not affect the communication quality of the first network device using the first resource to communicate with the first terminal in uplink. Therefore, the first network device determines to receive the signal from the first terminal using the first resource.

[0184] In the present application, the power of the signal transmitted by the network device in the first height range and reaching the first network device is less than or equal to the fifth threshold value. Therefore, the height of the second network device is located in the first height range, which means that the power of the signal transmitted by the second network device and reaching the first network device is small, and the second network device will not affect the communication quality of the first network device using the first resource to communicate with the first terminal in uplink. Therefore, the first network device determines to receive the signal from the first terminal using the first resource. The height of the second network device is the height of the second network device from the ground. If the second network device is a satellite, the height of the second network device can be the orbital height of the satellite.

[0185] In a possible implementation, the second network device sends the height information of the second network device to the first network device, so that the first network device determines whether to use the first resource according to the height information. Taking the second network device as a satellite as an example, the satellite sends ephemeris information to the first network device, and the ephemeris information includes the height information of the satellite. Correspondingly, after receiving the ephemeris information, the first network device determines whether to use the first resource according to the ephemeris information.

[0186] Optionally, the third received power and / or the fourth received power are further used to determine one or more of the following information: the transmission power of the first terminal for transmitting a signal to the first network device using the first resource; or the transmission power of the second network device for transmitting a signal to the second terminal using the first resource; or the transmission power of the second terminal for transmitting a signal to the second network device using the first resource. The following will be described in detail.

[0187] A possible design is that the greater the third received power, the greater the interference power received by the first network device from the second network device or the second terminal. In order to improve the communication quality of the first terminal in uplink communication with the first network device using the first resource, the first network device can instruct the first terminal to transmit a signal to the first network device using a greater power on the first resource, and / or, the first network device instructs the second network device to transmit a signal using a smaller power on the first resource, and / or, the first network device instructs the second terminal to transmit a signal using a smaller power on the first resource, so that the second network device instructs the second terminal to transmit a signal using a smaller power on the first resource, and / or, the first network device instructs the second terminal to transmit a signal using a smaller power on the first resource, so as to guarantee the communication quality of the first terminal. The smaller the third received power, the smaller the interference power received by the first network device from the second network device or the second terminal. The first network device can instruct the first terminal to transmit a signal to the first network device using a smaller power on the first resource, so as to save the power consumption of the first terminal and reduce the interference of the signal to other terminals. The following is described by taking the third received power for determining the transmission power of the first terminal in transmitting a signal to the first network device using the first resource as an example.

[0188] As an example, different power intervals are divided, and the transmission power of the first terminal corresponding to different power intervals is different. Specifically, reference can be made to the description of the first received power for determining the transmission power of the first network device in transmitting a signal to the first terminal using the first resource in case 1.

[0189] As another example, the transmission power of the first terminal is determined according to the third received power. For example, the transmission power of the first terminal is equal to (the third received power+T2). T2 can be a fixed value, for example, 10dB. Alternatively, T2 can be set as needed, for example, T2 can be set according to the service requirement of the first terminal. For example, if the service requirement of the first terminal requires a higher throughput, T2 can be set to be larger, such as 20dB, and if the service requirement of the first terminal requires a lower throughput, T2 can be set to be smaller, such as 5dB.

[0190] A possible design, the smaller the difference between the fourth received power and the third received power, the smaller the difference between the power at which the first network device receives signals from the first terminal and the power at which the first network device receives signals from the second network device or the second terminal. To improve the communication quality of the first terminal using the first resource to communicate with the first network device, the first network device can instruct the first terminal to use a larger power to send signals to the first network device on the first resource, and / or the first network device can instruct the second network device to use a smaller power to send signals on the first resource, and / or the first network device can instruct the second terminal to use a smaller power to send signals on the first resource, so that the second network device instructs the second terminal to use a smaller power to send signals on the first resource, and / or the first network device can instruct the second terminal to use a smaller power to send signals on the first resource to protect the communication quality of the first terminal. The larger the difference between the fourth received power and the third received power, the larger the difference between the power at which the first network device receives signals from the first terminal and the power at which the first network device receives signals from the second network device or the second terminal. The first network device can instruct the first terminal to use a smaller power to send signals to the first network device on the first resource to save power consumption of the first terminal and reduce interference of the signals to other terminals. The following is an example of using the third received power and the fourth received power to determine the transmission power of the first terminal to send signals to the first network device on the first resource.

[0191] As an example, different power intervals are divided, and different power intervals correspond to different transmission powers of the first terminal. Specifically, reference can be made to the related description of the first received power and the second received power used to determine the transmission power of the first network device to send signals to the first terminal on the first resource in Case 1.

[0192] A possible design, the smaller the fourth received power, the worse the communication quality between the first network device and the first terminal. In order to improve the communication quality of the first terminal using the first resource to communicate with the first network device, the first network device can instruct the first terminal to send a signal to the first network device using a larger power on the first resource, and / or, the first network device instructs the second network device to send a signal using a smaller power on the first resource, and / or, the first network device instructs the second terminal to send a signal using a smaller power on the first resource, so that the second network device instructs the second terminal to send a signal using a smaller power on the first resource, and / or, the first network device instructs the second terminal to send a signal using a smaller power on the first resource, so as to guarantee the communication quality of the first terminal. The larger the fourth received power, the better the communication quality between the first network device and the first terminal, the first network device can instruct the first terminal to send a signal to the first network device using a smaller power on the first resource, so as to save the power consumption of the first terminal and reduce the interference of the signal to other terminals. The following is an example of using the fourth received power to determine the transmission power of the first terminal sending a signal to the first network device using the first resource.

[0193] As an example, different power intervals are divided, and the transmission power of the first terminal corresponding to different power intervals is different. Specifically, reference can be made to the related description of the second received power used to determine the transmission power of the first network device sending a signal to the first terminal using the first resource in case 1.

[0194] As another example, the transmission power P8 of the first terminal sending a signal to the first network device using the first resource is determined according to the second received power, for example, P8 = [P9 + (P10-P11)]. Wherein, P9 is the current transmission power of the first terminal, P11 is the fourth received power, and P10 is the target received power, which can be pre-set.

[0195] It can be understood that the above-mentioned third threshold value, fourth threshold value, second numerical value, first threshold value, second threshold value, first height range, c, d, r2, a2, b2 or power interval and the like can be pre-set, or defined in the protocol, or can be set as needed, without limitation. Optionally, the second network device can instruct the first network device about one or more of the above-mentioned parameters.

[0196] Case 3: The use conditions of the first resource include one or more of condition 3 or condition 4.

[0197] In one possible design, the usage condition for the first resource can include one or more of the following: the first network device transmits signals using the first resource with a power less than or equal to a sixth threshold; or the first network device transmits signals in a fourth direction using the first resource with a power less than or equal to a seventh threshold; or the first network device transmits signals to a third region where the second terminal is located using the first resource with a power less than or equal to an eighth threshold; or a terminal using the first resource transmits signals with a power less than or equal to a ninth threshold; or a terminal in the third region transmits signals using the first resource with a power less than or equal to a tenth threshold; or the terminal using the first resource is located outside the third region.

[0198] In the present application, in order to avoid the downlink communication of the first network device on the first resource affecting the communication quality of the uplink and downlink communication of the second network device with the second terminal using the first resource, the power of the first network device transmitting signals using the first resource can be limited, e.g., the power is less than or equal to a sixth threshold.

[0199] In the present application, in order to reduce the impact on the communication quality of the terminal served by the first network device without affecting the communication quality of the uplink and downlink communication of the second network device with the second terminal using the first resource, the power of the first network device transmitting signals in a fourth direction using the first resource can be limited, e.g., the power is less than or equal to a seventh threshold, and / or the power of the first network device transmitting signals to a third region where the second terminal is located using the first resource can be limited, e.g., the power is less than or equal to an eighth threshold. The fourth direction can be a direction where the second terminal is located, e.g., a direction where the first network device and the second terminal are connected, or a direction of a first transmission beam of the first network device. The second terminal is located in a coverage range of the first transmission beam. The third region is a circular region or a spherical region with the second terminal as the center and r3 as the radius, or the third region is a rectangular region or a cuboid region with the second terminal as the center, a3 as the length, and b3 as the width (a3 and b3 can be the same or different), or the third region is a geographical region where the second terminal is located, e.g., a street or an administrative region where the second terminal is located, or the third region is a communication region where the second terminal is located, e.g., a cell or a tracking area where the second terminal is located.

[0200] In the present application, in order to avoid the uplink communication of the terminal using the first resource with the first network device affecting the communication quality of the uplink and downlink communication of the second network device with the second terminal using the first resource, the power of the terminal using the first resource transmitting signals can be limited, e.g., the power is less than or equal to a ninth threshold.

[0201] In the present application, in order to avoid the uplink communication of the terminals near the second terminal and the first network device on the first resource affecting the communication quality of the uplink and downlink communication of the second network device and the second terminal on the first resource, the power of the signal transmitted by the terminals near the second terminal (such as the terminals in the third area) on the first resource can be limited, for example, the power is less than or equal to the tenth threshold value.

[0202] In the present application, in order to avoid the uplink and downlink communication of the terminals near the second terminal and the first network device on the first resource affecting the communication quality of the uplink and downlink communication of the second network device and the second terminal on the first resource, the terminals in the third area can be prohibited from using the first resource. For example, if the first terminal is located in the third area, the first network device determines not to communicate with the first terminal on the first resource, and if the first terminal is located outside the third area, the first network device determines to communicate with the first terminal on the first resource.

[0203] It can be understood that the sixth threshold value, the seventh threshold value, the eighth threshold value, the ninth threshold value, the tenth threshold value, r3, a3 or b3 and the like can be pre-set, or defined in a protocol, or can be set as needed, without limitation. Optionally, the second network device can indicate one or more of the above parameters to the first network device.

[0204] Based on the method shown in FIG. 3, the first network device can determine whether to communicate with the first terminal on the first resource based on the use condition of the first resource, which can avoid the uplink and downlink communication of the second network device and the second terminal affecting the communication quality of the first network device communicating with the first terminal on the first resource, and / or avoiding the uplink and downlink communication of the first network device and the first terminal affecting the communication quality of the second network device communicating with the second terminal on the first resource.

[0205] Optionally, in a possible implementation of the method shown in FIG. 3, the resources of the first network device can be divided into resource types, such as hard resource type, soft resource type, not available (NA) resource type or conditional available (CA) resource type.

[0206] In the present application, the resource corresponding to the hard resource type is a hard resource, which is a resource that is fixedly available to the first network device. The resource corresponding to the soft resource type is a soft resource, which can be dynamically indicated by the second network device as to whether it is available. The resource corresponding to the unavailable resource type is an unavailable resource, which is a resource that cannot be used by the first network device. The resource corresponding to the conditionally available resource type is a conditionally available resource, which can be used by the first network device according to a usage condition corresponding to the resource. The resource type of the first resource is the conditionally available resource type. It should be understood that the above-mentioned several resource types can also have other naming methods, which are not limited.

[0207] In the present application, the resource type corresponding to the resource of the first network device can be defined by a protocol, pre-stored in the first network device, or indicated by the second network device. The following takes a time-frequency resource as an example to introduce the above-mentioned several resource types.

[0208] Please refer to FIG. 5 for a schematic diagram of the resource type corresponding to the time-frequency resource. In FIG. 5, a time unit is a section of resource in the time domain. For example, the time unit includes one or more symbols, or one or more slots, or one or more subframes, or one or more frames, or T milliseconds. T is a positive number. A frequency unit is a section of resource in the frequency domain. For example, the frequency unit includes one or more subcarriers, or one or more REs, or one or more RBs, etc. The resource marked with “NA” is an unavailable resource, the resource marked with “H” is a hard resource, the resource marked with “S” is a soft resource, and the resource marked with “CA” is a conditionally available resource. It can be understood that the first resource can include all or part of the conditionally available resources shown in FIG. 5. In FIG. 5, the usage conditions corresponding to different conditionally available resources can be the same to simplify the configuration method. Alternatively, the usage conditions corresponding to different conditionally available resources can be different to achieve flexible configuration of the usage conditions and improve resource reuse efficiency.

[0209] It can be understood that FIG. 5 is only an example of the resource type, and in specific applications, the resource type corresponding to the time-frequency resource can also be in other forms, for example, it does not need to include all types of resources, or it can include more or fewer time units than those shown in FIG. 5, or it can include more or fewer frequency units than those shown in FIG. 5, which are not limited. For example, the resource type corresponding to the time-frequency resource can also be as shown in FIG. 6.

[0210] One possible implementation, taking the second network device indicating a resource type to the first network device as an example, is that the second network device can send resource configuration information to the first network device. Correspondingly, the first network device can receive resource configuration information from the second network device. This resource configuration information indicates one or more of the following resource types: conditionally available resource type, hard resource type, soft resource type, or unavailable resource type.

[0211] As an example, the resource configuration information includes an identifier for the resource type corresponding to each resource. Taking the identifier of a conditionally available resource type as "00", a hard resource type as "01", a soft resource type as "10", and an unavailable resource type as "11" as an example, the second network device can divide the time-frequency resources into grids, configure resource types for each grid, and indicate the resource type corresponding to each network through the resource configuration information. If the resource configuration information indicates the resource type of the first row of resources in Figure 5, the resource configuration information includes "11111111110101010101", if the resource configuration information indicates the resource type of the second row of resources in Figure 5, the resource configuration information includes "10101010100000000000", and if the resource configuration information indicates the resource type of the third row of resources in Figure 5, the resource configuration information includes "01010101010111111111".

[0212] As another example, resource configuration information includes the identifier of the time-frequency pattern corresponding to the resource type. For example, the second network device and the first network device pre-store the time-frequency pattern corresponding to the resource type shown in Figure 5 (identified as a), the time-frequency pattern corresponding to the resource type shown in Figure 6(a) (identified as b), and the time-frequency pattern corresponding to the resource type shown in Figure 6(b) (identified as c). If the second network device determines to configure the resource type shown in Figure 5 for the first network device, the resource configuration information includes "a"; if the second network device determines to configure the resource type shown in Figure 6(a) for the first network device, the resource configuration information includes "b"; and if the second network device determines to configure the resource type shown in Figure 6(b) for the first network device, the resource configuration information includes "c".

[0213] Understandably, this application does not limit the number of first network devices. When the number of first network devices is greater than one, the second network device may send resource configuration information and / or information on the usage conditions of the first resources to each first network device. Alternatively, the second network device may send resource configuration information and / or information on the usage conditions of the first resources to one of the first network devices, and then that first network device may forward the aforementioned information to the other first network devices.

[0214] It can be understood that the actions of the first network device or the second network device in the above steps can be performed by the processor 201 in the communication device 20 shown in FIG. 2 invoking the application program code stored in the memory 203, and the present application does not make any limitation in this regard.

[0215] The various embodiments mentioned in the foregoing of the present application can be combined without contradiction in the scheme, and are not limited.

[0216] The above mainly introduces the scheme provided by the present application from the perspective of interaction between various network elements. Correspondingly, the present application also provides a communication device, which can be the first network device in the above method embodiment, or a device containing the above first network device, or a component applicable to the first network device; or the communication device can be the second network device in the above method embodiment, or a device containing the above second network device, or a component applicable to the second network device. It can be understood that the above first network device or second network device and the like contain the corresponding hardware structure and / or software module for executing various functions in order to realize the above functions. Those skilled in the art should easily realize that the units and algorithm operations of the examples described in combination with the embodiments disclosed in the present application can be realized in the form of hardware or a combination of hardware and computer software. Whether a certain function is driven by hardware or computer software to drive hardware depends on the specific application and design constraints of the technical scheme. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0217] The present application can divide the functions of the first network device or the second network device into function modules according to the above method examples, for example, each function module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated module can be realized in the form of hardware or software function module. It can be understood that the division of modules in the present application is illustrative, and is only a logical function division, and actual implementation can have another division method.

[0218] For example, in the case of dividing each function module in an integrated manner, FIG. 7 shows a structural schematic diagram of a communication device 70. The communication device 70 includes a processing module 701 and an interface module 702. The processing module 701, which can also be called a processing unit, is used to perform operations other than transceiving operations, for example, it can be a processing circuit or a processor, etc. The interface module 702, which can also be called an interface unit, is used to perform transceiving operations, for example, it can be an interface circuit, a transceiver, a transceiver or a communication interface, etc.

[0219] In some embodiments, the communication apparatus 70 can further include a storage module (not shown in FIG. 7) for storing program instructions and data.

[0220] In some embodiments, the communication apparatus 70 can further include an AI module (not shown in FIG. 7) for implementing AI related functions. The AI module can implement AI functions through software, hardware or a combination of software and hardware. For example, the AI module includes a RIC module. Optionally, the AI module and the storage module are integrated on one module, or the AI module and the processing module 701 are integrated on one module.

[0221] For example, the communication apparatus 70 is configured to implement functions of a first network device. The communication apparatus 70 is, for example, the first network device described in the embodiment shown in FIG. 3.

[0222] The processing module 701 is configured to obtain a usage condition of the first resource. For example, the processing module 701 can be configured to perform S301.

[0223] The interface module 702 is configured to communicate with the first terminal by using the first resource when the usage condition of the first resource is met. For example, the interface module 702 can be configured to perform S302.

[0224] When used to implement functions of the first network device, other functions that the communication apparatus 70 can implement can refer to the related descriptions of the embodiment shown in FIG. 3, and will not be repeated here.

[0225] For example, the communication apparatus 70 is configured to implement functions of a second network device. The communication apparatus 70 is, for example, the second network device described in the embodiment shown in FIG. 3.

[0226] The processing module 701 is configured to obtain a usage condition of the first resource.

[0227] The interface module 702 is configured to send information of the usage condition of the first resource to the first network device.

[0228] When used to implement functions of the second network device, other functions that the communication apparatus 70 can implement can refer to the related descriptions of the embodiment shown in FIG. 3, and will not be repeated here.

[0229] In a simple embodiment, those skilled in the art can think that the communication apparatus 70 can adopt the form shown in FIG. 2. For example, the processor 201 in FIG. 2 can execute the above-mentioned method by calling the computer execution instructions stored in the memory 203, so that the communication apparatus 70 executes the method described in the above-mentioned method embodiment.

[0230] For example, the functions / implementation procedures of the processing module 701 and the interface module 702 in FIG. 7 can be implemented by the processor 201 in FIG. 2 invoking the computer-executable instructions stored in the memory 203. Alternatively, the functions / implementation procedures of the processing module 701 in FIG. 7 can be implemented by the processor 201 in FIG. 2 invoking the computer-executable instructions stored in the memory 203, and the functions / implementation procedures of the interface module 702 in FIG. 7 can be implemented by the transceiver 202 in FIG. 2.

[0231] It can be understood that one or more of the above modules or units can be implemented in software, hardware or a combination of both. When any of the above modules or units is implemented in software, the software exists in the form of computer program instructions and is stored in the memory, and the processor can be used to execute the program instructions and implement the above method procedures. The processor can be built in a system-on-a-chip (SoC) or an application-specific integrated circuit (ASIC), or be a separate semiconductor chip. In addition to the core for executing software instructions to perform operations or processing, the processor can further include necessary hardware accelerators, such as a field programmable gate array (FPGA), a programmable logic device (PLD), or a logic circuit for implementing special logic operations.

[0232] When any of the above modules or units is implemented in hardware, the hardware can be any one or any combination of a CPU, a microprocessor, a digital signal processing (DSP) chip, a microcontroller unit (MCU), an artificial intelligence processor, an ASIC, a SoC, an FPGA, a PLD, a dedicated digital circuit, a hardware accelerator or a non-integrated discrete device, which can run necessary software or be independent of software to execute the above method procedures.

[0233] Optionally, the present application also provides a chip system, comprising: one or more processors and an interface, the one or more processors being coupled with a memory through the interface, and when the one or more processors execute computer programs or instructions in the memory, the method in any of the above method embodiments is executed. In a possible implementation manner, the chip system further comprises the memory. Optionally, the chip system can be composed of a chip, or can include a chip and other discrete devices, and the present application does not make a specific limitation in this regard.

[0234] Optionally, the present application also provides a computer readable storage medium. All or part of the processes in the above method embodiments can be instructed by a computer program to relevant hardware to complete, the program can be stored in the above computer readable storage medium, and the program can include the processes of the above method embodiments when executed. The computer readable storage medium can be an internal storage unit of the communication device, such as the hard disk or the memory of the communication device. The above computer readable storage medium can also be an external storage device of the above communication device, such as the plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc. equipped on the above communication device. Further, the above computer readable storage medium can include both the internal storage unit and the external storage device of the above communication device. The above computer readable storage medium is used to store the above computer program and other programs and data required by the above communication device. The above computer readable storage medium can also be used to temporarily store data that has been output or will be output.

[0235] Optionally, the present application also provides a computer program product. All or part of the processes in the above method embodiments can be instructed by a computer program to relevant hardware to complete, the program can be stored in the above computer program product, and the program can include the processes of the above method embodiments when executed.

[0236] Optionally, the present application also provides a computer instruction. All or part of the processes in the above method embodiments can be instructed by a computer instruction to relevant hardware (such as a computer, a processor, a first network device, or a second network device, etc.) to complete. The program can be stored in the above computer readable storage medium or the above computer program product.

[0237] Optionally, the present application also provides a communication system, including the first network device and the second network device in the above embodiments.

[0238] Through the above description of the embodiments, those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional modules is taken as an example for illustration, and in actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.

[0239] It can be understood that in the present application, the symbol can be an orthogonal frequency division multiplexing (OFDM) symbol or a discrete fourier transform-spread-OFDM (DFT-S-OFDM) symbol.

[0240] It can be understood that the names of messages between various network elements in the above embodiments of the present application or the names of various parameters in the messages are only examples, and other names can also be used in specific implementation, which is not limited in the present application.

[0241] It can be understood that in the present application, “ / ” can represent that the objects before and after the “ / ” are in an “or” relationship, for example, A / B can represent A or B; “and / or” can be used to describe the existence of three relationships of associated objects, for example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone, of which A and B can be singular or plural. In addition, expressions such as “one or more of A, B, and C” or “one or more of A, B, or C” are generally used to represent any of the following: A exists alone; B exists alone; C exists alone; A and B exist simultaneously; A and C exist simultaneously; B and C exist simultaneously; A, B, and C exist simultaneously. The above is an example of three elements A, B, and C to illustrate the alternative items of the project, and when there are more elements in the expression, the meaning of the expression can be obtained according to the foregoing rules.

[0242] In order to facilitate the description of the technical solutions of the present application, in the present application, “first”, “second” and the like can be used to distinguish technical features with the same or similar functions. The “first”, “second” and the like do not limit the quantity and execution order, and the “first”, “second” and the like do not necessarily mean different. In the present application, “exemplary” or “for example” means example, illustration or description. Any embodiment or design scheme described as “exemplary” or “for example” should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. The use of “exemplary” or “for example” is intended to present the relevant concept in a specific manner, and to facilitate understanding.

[0243] It can be understood that the "embodiments" mentioned in the specification throughout mean that the specific features, structures or characteristics related to the embodiments are included in one or more embodiments of the present application. Therefore, the various embodiments throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It can be understood that in various embodiments of the present application, the size of the sequence of each process does not mean the order of execution, the execution order of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the present application.

[0244] It can be understood that in the present application, "when", "in the case of", "if" and "if" all refer to the corresponding processing under certain objective circumstances, not limited by time, and do not require a judgment action when implemented, nor does it mean that there are other limitations.

[0245] In the present application, "greater than or equal to" can be replaced by "greater than", or replaced by "equal to"; "less than or equal to" can be replaced by "less than", or replaced by "equal to". For example, A is greater than or equal to B, which can be replaced by A is greater than B, or replaced by A is equal to B; A is less than or equal to B, which can be replaced by A is less than B, or replaced by A is equal to B.

[0246] It can be understood that some optional features in the present application can be implemented independently in some scenarios without relying on other features, such as the current scheme based on, to solve the corresponding technical problems and achieve the corresponding effects, or can be combined with other features according to demand in some scenarios. Accordingly, the devices given in the present application can also implement these features or functions, which are not described here.

[0247] It can be understood that the same step or step or technical feature with the same function in the present application can be mutually referenced between different embodiments.

[0248] In several embodiments provided by the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of the modules or units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another device, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed each other can be through some interface, indirect coupling or communication connection between devices or units, which can be electrical, mechanical or other forms.

[0249] The units described as separate components may or may not be physically separate, and the components displayed as units may be a physical unit or multiple physical units, that is, may be located in one place, or also can be distributed to multiple different places. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0250] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0251] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited to this. Any change or replacement within the technical scope disclosed in the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A communication method characterized by comprising: The method is applied to a first network device, and comprises: obtaining a usage condition of a first resource; if the usage condition is satisfied, using the first resource to communicate with a first terminal, wherein the usage condition is related to a communication quality between the first network device and the first terminal, and / or the usage condition is related to a communication quality between a second network device and a second terminal.

2. The method of claim 1, wherein, If the usage condition is related to the communication quality between the first network device and the first terminal, the usage condition comprises one or more of the following conditions: Condition 1: the first terminal can correctly receive a signal sent by the first network device using the first resource; or Condition 2: the first network device can correctly receive a signal sent by the first terminal using the first resource.

3. The method of claim 2, wherein, If the usage condition comprises the condition 1, the usage condition is satisfied in one or more of the following manners: a first received power is less than or equal to a first threshold, wherein the first received power is a power of a signal received by the first terminal from the second network device or the second terminal; or a difference between a second received power and the first received power is greater than or equal to a second threshold, wherein the second received power is a power of a signal received by the first terminal from the first network device; or a distance between the first terminal and the first network device is less than or equal to a first value; or the second terminal is located outside a first area in which the first terminal is located.

4. The method of claim 3, wherein, The first received power and / or the second received power are further used to determine one or more of the following information: a transmission power of a signal sent by the first network device to the first terminal using the first resource; or a transmission power of a signal sent by the second network device to the second terminal using the first resource; or a transmission power of a signal sent by the second terminal to the second network device using the first resource.

5. The method according to any one of claims 2-4, characterized in that, If the usage condition comprises the condition 2, the usage condition is satisfied in one or more of the following manners: a third received power is less than or equal to a third threshold, wherein the third received power is a power of a signal received by the first network device from the second network device or the second terminal; or a difference between a fourth received power and the third received power is greater than or equal to a fourth threshold, wherein the fourth received power is a power of a signal received by the first network device from the first terminal; or a distance between the first terminal and the first network device is less than or equal to a second value; or an included angle between a first direction and a second direction is greater than or equal to a first threshold value, wherein the first direction is a direction of a line connecting the second network device and the first network device, and the second direction is a direction in which the first network device communicates with the first terminal; or an included angle between a third direction and the second direction is greater than or equal to a second threshold value, wherein the third direction is a direction of a line connecting the second terminal and the first network device; or an included angle between a third direction and the second direction is greater than or equal to a second threshold value, wherein the third direction is a direction of a line connecting the second terminal and the first network device; or The second terminal is located outside a second area, and the second area is related to a location of the first terminal and / or a location of the first network device; or The height of the second network device is within a first height range, and a signal transmitted by a network device within the first height range reaches the first network device with a power less than or equal to a fifth threshold.

6. The method of claim 5, wherein, The third received power and / or the fourth received power are further used to determine one or more of the following information: A transmission power of the first terminal for transmitting a signal to the first network device using the first resource; or A transmission power of the second network device for transmitting a signal to the second terminal using the first resource; or A transmission power of the second terminal for transmitting a signal to the second network device using the first resource.

7. The method according to any one of claims 1 to 6, characterized in that, If the use condition is related to a communication quality between the second network device and the second terminal, the use condition includes one or more of the following conditions: Condition 3: The second terminal can correctly receive a signal transmitted by the second network device using the first resource; or Condition 4: The second network device can correctly receive a signal transmitted by the second terminal using the first resource.

8. The method of claim 7, wherein, The satisfaction of the use condition includes one or more of the following: A power of the first network device for transmitting a signal using the first resource is less than or equal to a sixth threshold; or A power of the first network device for transmitting a signal in a fourth direction using the first resource is less than or equal to a seventh threshold; or A power of the first network device for transmitting a signal to a third area where the second terminal is located using the first resource is less than or equal to an eighth threshold; or A power of a terminal using the first resource for transmitting a signal is less than or equal to a ninth threshold; or A power of a terminal within the third area using the first resource for transmitting a signal is less than or equal to a tenth threshold; or A terminal using the first resource is located outside the third area. The use condition of the first resource includes:

9. The method according to any one of claims 1-8, characterized in that, Receiving information of the use condition from the second network device. The first resource includes one or more of the following: time resource, frequency resource, space resource, or polarization resource.

10. The method according to any one of claims 1-9, characterized in that, 11. The method of any one of claims 1-10, wherein The first network device is a network device in a non-terrestrial network, and the second network device is a network device in a terrestrial network; or The first network device is a network device in a terrestrial network, and the second network device is a network device in a non-terrestrial network. The method further includes:

12. The method according to any one of claims 1-11, characterized in that, Receiving resource configuration information from the second network device, the resource configuration information indicating one or more of the following resource types: conditionally available resource type, hard resource type, soft resource type, or unavailable resource type, and the first resource is of the conditionally available resource type. Applied to a second network device, the method includes:

13. A method of communication, comprising: Obtaining a use condition of a first resource; ​ sending, to a first network device, information of the usage condition, the information of the usage condition being used by the first network device to determine that the first network device communicates with a first terminal by using the first resource in a case that the usage condition is satisfied, the usage condition being related to a communication quality between the first network device and the first terminal, and / or the usage condition being related to a communication quality between the second network device and a second terminal.

14. The method of claim 13, wherein, If the usage condition is related to the communication quality between the first network device and the first terminal, the usage condition comprises one or more of the following conditions: Condition 1: the first terminal correctly receives a signal transmitted by the first network device by using the first resource; or Condition 2: the first network device correctly receives a signal transmitted by the first terminal by using the first resource.

15. The method of claim 14, wherein, If the usage condition comprises the Condition 1, the usage condition being satisfied comprises one or more of the following: a first received power is less than or equal to a first threshold, the first received power being a power at which the first terminal receives a signal transmitted by the second network device or the second terminal; or a difference between a second received power and the first received power is greater than or equal to a second threshold, the second received power being a power at which the first terminal receives a signal transmitted by the first network device; or a distance between the first terminal and the first network device is less than or equal to a first value; or the second terminal is located outside a first area in which the first terminal is located. The first received power and / or the second received power are further used to determine one or more of the following: a transmission power at which the first network device transmits a signal to the first terminal by using the first resource; or 16. The method of claim 15, wherein, a transmission power at which the second network device transmits a signal to the second terminal by using the first resource; or a transmission power at which the second terminal transmits a signal to the second network device by using the first resource. If the usage condition comprises the Condition 2, the usage condition being satisfied comprises one or more of the following: a third received power is less than or equal to a third threshold, the third received power being a power at which the first network device receives a signal transmitted by the second network device or the second terminal; or 17. The method according to any one of claims 14-16, characterized by, a difference between a fourth received power and the third received power is greater than or equal to a fourth threshold, the fourth received power being a power at which the first network device receives a signal transmitted by the first terminal; or a distance between the first terminal and the first network device is less than or equal to a second value; or an angle between a first direction and a second direction is greater than or equal to a first threshold value, the first direction being a direction of a line connecting the second network device and the first network device, and the second direction being a direction in which the first network device communicates with the first terminal; or an angle between a third direction and the second direction is greater than or equal to a second threshold value, the third direction being a direction of a line connecting the second terminal and the first network device. ​ ​ ​ The second terminal is located outside a second area, and the second area is related to a location of the first terminal and / or a location of the first network device; or The height of the second network device is within a first height range, and a signal transmitted by a network device within the first height range reaches the first network device with a power less than or equal to a fifth threshold.

18. The method of claim 17, wherein, The third received power and / or the fourth received power are further used to determine one or more of the following information: A transmission power of the first terminal when transmitting a signal to the first network device using the first resource; or A transmission power of the second network device when transmitting a signal to the second terminal using the first resource; or A transmission power of the second terminal when transmitting a signal to the second network device using the first resource.

19. The method according to any one of claims 13-18, characterized by, If the usage condition is related to a communication quality between the second network device and the second terminal, the usage condition includes one or more of the following conditions: Condition 3: The second terminal can correctly receive a signal transmitted by the second network device using the first resource; or Condition 4: The second network device can correctly receive a signal transmitted by the second terminal using the first resource.

20. The method of claim 19, wherein, The satisfaction of the usage condition includes one or more of the following: A power of the first network device when transmitting a signal using the first resource is less than or equal to a sixth threshold; or A power of the first network device when transmitting a signal in a fourth direction using the first resource is less than or equal to a seventh threshold; or A power of the first network device when transmitting a signal to a third area where the second terminal is located using the first resource is less than or equal to an eighth threshold; or A power of a terminal using the first resource when transmitting a signal is less than or equal to a ninth threshold; or A power of a terminal within the third area when transmitting a signal using the first resource is less than or equal to a tenth threshold; or A terminal using the first resource is located outside the third area. The first resource includes one or more of the following: a time resource, a frequency resource, a space resource, or a polarization resource.

21. The method according to any one of claims 13-20, characterized by, 22. The method of any one of claims 13-21, wherein The first network device is a network device in a non-terrestrial network, and the second network device is a network device in a terrestrial network; or The first network device is a network device in a terrestrial network, and the second network device is a network device in a non-terrestrial network. The method further includes:

23. The method according to any one of claims 13-22, characterized by, sending resource configuration information to the first network device, the resource configuration information indicating one or more of the following resource types: a conditionally available resource type, a hard resource type, a soft resource type, or an unavailable resource type, and the resource type of the first resource being a conditionally available resource type. comprise units or modules for performing the method of any one of claims 1-12, or comprise units or modules for performing the method of any one of claims 13-23.

24. A communications device, characterized by comprise:

25. A communications device, characterized by ​ a processor coupled with a memory for storing programs or instructions that, when executed by the processor, cause the apparatus to perform the method of any one of claims 1 to 12, or the method of any one of claims 13 to 23.

26. A computer readable storage medium having stored thereon a computer program or instructions, characterized in that, The computer program or instructions, when executed, cause a computer to perform the method of any one of claims 1 to 12, or the method of any one of claims 13 to 23.

27. A computer program product, comprising computer program code in said computer program product, characterised in that, The computer program code, when running on a computer, causes the computer to implement the method of any one of claims 1 to 12, or the method of any one of claims 13 to 23.

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