Communication method and apparatus, and system

Abstract

The present application relates to a communication method and apparatus, and a system. In the method, first information represents the success rate of a terminal apparatus that is related to a first service when the terminal apparatus is covered by a first access network apparatus or a second access network apparatus, and the success rate of executing the first service reflects to a certain extent the demand for resources for executing the first service. Therefore, the first access network apparatus can adjust a first threshold of first resources on the basis of the success rate, so as to make the first threshold meet the demands of a current first cell for the first resources. Compared with a method for setting a fixed resource threshold, the method in the embodiments of the present application can set a threshold on the basis of actual resource demands, such that connection establishment failures caused by insufficient first resources are reduced, thereby facilitating an improvement in the communication quality of service, and a waste of resources caused by irrational resource threshold setting can also be reduced, so as to improve a resource utilization rate.

Description

Communication method, device and system

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of the People's Republic of China on December 29, 2023, with application number 202311868174.5 and application name "A Communication Method, Device and System", the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of communication technology, and in particular to a communication method, device, and system. Background Art

[0004] Terrestrial mobile communication networks provide convenient services, but in areas such as mountainous areas, deserts, or oceans, the coverage of terrestrial mobile communication networks is affected due to the difficulty in setting up ground base stations. In this case, non-terrestrial networks (NTN) have become a supplement to terrestrial mobile communication systems. NTN includes scenarios such as satellite networks, high-altitude platforms, or drones. It has significant advantages such as global coverage, long-distance transmission, flexible networking, easy deployment, and no geographical restrictions. It has been widely used in many fields such as maritime communications, positioning and navigation, disaster relief, scientific experiments, video broadcasting, or earth observation. The fifth generation (5G) mobile communication network and satellite networks are integrated with each other, complementing each other to form a global integrated communication network with seamless coverage of sea, land, air, space, and ground, meeting the various business needs of users everywhere.

[0005] As a key component of the National Telecommunications Network (NTN), next-generation satellite networks are generally trending toward ultra-dense networks (UDNs). The scale of satellite networks has grown from 66 satellites in the Iridium constellation to 720 satellites in the OneWeb constellation, and will ultimately expand to Starlink's ultra-dense low-Earth orbit (LEO) satellite constellation of over 12,000 satellites. A satellite constellation is a collection of satellites launched into orbit and functioning normally. LEO satellite networks are particularly well-suited for personal mobile communications. However, due to the large number of satellites within LEO satellite networks and their generally high-speed motion, when a LEO satellite 1 moves out of its covered terrestrial cell 1 and a new LEO satellite 2 takes over coverage of that cell, a network-side handover occurs (for example, the base station covering cell 1 switches from the base station of LEO satellite 1 to the base station of LEO satellite 2). Terminal devices within cell 1 then need to establish a communication connection with the new LEO satellite 2. If a terminal device performs a certain service under the coverage of LEO satellite 1, in order to ensure service continuity of the service, LEO satellite 2 needs to continue to provide resources for the service of the switched terminal device so that the terminal device can continue to perform the service through the resources.

[0006] The resources provided by the LEO satellite for this service may be limited. When all the resources provided by the LEO satellite for this service are occupied, no service resources will be provided to the terminal device that is switched over, resulting in service interruption for the terminal device. Alternatively, the LEO satellite may provide more resources for executing the service, but if the LEO satellite provides too many resources, there may be a waste of resources, reducing resource utilization. Summary of the Invention

[0007] Embodiments of the present application provide a communication method, apparatus, and system for dynamically adjusting a threshold of resources for executing a first service.

[0008] In a first aspect, a communication method is provided. The method can be performed by a first access network device, the first access network device is located in a mobile device, and the mobile device includes, for example, a satellite, a vehicle, a ship, or an aircraft. Taking the mobile device as a satellite as an example, the first access network device can be a satellite, or can be other devices including a satellite, or can be a chip system (or chip) or other functional module. The chip system or functional module can implement the functions of the satellite, and the chip system or functional module is, for example, set in a satellite. The method includes: the first access network device obtains first information of a first cell covered by it, the first information is used to characterize the success rate of a terminal device related to a first service when covered by the first access network device or the second access network device, wherein the first cell is covered by the second access network device before being covered by the first access network device, and the first access network device is located in a mobile device. The first access network device determines a first threshold of a first resource based on the first information, the first resource including resources related to the first service used by the terminal device when covered by the first access network device, and the first threshold is used to indicate an upper limit on the quantity of the first resource in the first cell.

[0009] In a possible implementation manner, the success rate related to the first service includes, for example, a success rate of establishing a session for transmitting the first service and / or a success rate of executing the first service.

[0010] In a possible implementation, the resources related to the first service include, for example, resources for establishing a session for transmitting the first service and / or resources for executing the first service.

[0011] In this embodiment, the first information represents the success rate of the terminal device associated with the first service under the coverage of the first access network device or the second access network device. The success rate associated with the first service, to a certain extent, reflects the resource demand of the first service. For example, if the success rate is low, it may be due to insufficient resources. To improve the success rate, more resources can be allocated to the first service. If the success rate is high, it indicates that resources are sufficient. In this case, the resources associated with the first service can be appropriately reduced, thereby ensuring the success rate of the first service while allowing more resources to be used for other purposes. Therefore, the first access network device can adjust the first threshold of the first resource based on the success rate so that the first threshold meets the current demand for the first resource in the first cell. Compared to setting a fixed resource threshold, the embodiment of the present application can set the threshold based on actual resource demand, thereby reducing the possibility of first service failures due to insufficient first resources, which is beneficial for improving communication service quality. It can also reduce resource waste caused by unreasonable resource threshold settings, thereby improving resource utilization.

[0012] In one possible implementation, the terminal device is located within the coverage of the first cell before and after establishing a communication connection with the first access network device, or the terminal device is located within the coverage of the second cell before establishing a communication connection with the first access network device. If the terminal device is located within the coverage of the first cell before and after establishing a communication connection with the first access network device, it indicates that the terminal device establishes a communication connection with the first access network device due to the switching of the access network device covering the first cell (switching from the second access network device to the first access network device). In this case, the terminal device may or may not have moved, but the terminal device has not moved out of the coverage of the first cell. If the terminal device is located within the coverage of the second cell before establishing a communication connection with the first access network device, it indicates that the terminal device establishes a communication connection with the first access network device due to the movement of the terminal device. At this time, the access network device covering the first cell may not have switched or may have switched, and there is no limitation on this. In summary, the embodiments of the present application are applicable to a variety of communication scenarios and have a wide range of applicability.

[0013] In a possible embodiment, a way for the first access network device to obtain the first information of the first cell includes, for example, receiving the first information, where the first information is used to characterize the success rate of the terminal device related to the first service when it is covered by the second access network device. For example, when the access network device covering the first cell switches (from the second access network device to the first access network device), the second access network device can send the first information to the first access network device. Since the first information characterizes the success rate of the terminal device related to the first service when it is covered by the second access network device before the first access network device covers the first cell, it also reflects the demand for resources for executing the first service before the first access network device covers the first cell, and this demand usually does not suddenly change before and after the first access network device covers the first cell. Therefore, the first threshold determined by the first access network device based on this demand can meet the current demand of the first cell for the first resource.

[0014] In one possible implementation, the first access network device may receive the first information in a variety of implementations. For example, one implementation of the first access network device receiving the first information includes: the first information is included in the second information, and the second information also includes information used to indicate that the first access network device covers the first cell. For example, the second information comes from the core network device, and is information for the core network device to notify the first access network device that it covers the first cell. Alternatively, another implementation of the first access network device receiving the first information includes: the first information is included in the third information, and the third information is also used to configure the transmit beam and / or receive beam of the first cell. For example, the third information comes from the second access network device, and is information for the second access network device to send the beam configuration of the first cell to the first access network device. Through either of these two implementations, when an access network device switch occurs, the first information of the first cell before the access network device switch can be delivered to the first access network device. Since the first information represents the success rate of the terminal device related to the first service when it is covered by the second access network device before the first access network device covers the first cell, it also reflects the demand for resources for executing the first service before the first access network device covers the first cell. This demand usually does not suddenly change before and after the first access network device covers the first cell. The first access network device can determine the first threshold based on the first information before the first access network device covers the first cell to meet the current demand of the first cell for the first resource.

[0015] In a possible implementation, the first information may include a first parameter and / or a second parameter. The first parameter is used to characterize the success rate of the terminal device in continuing the first service when it is covered by the first access network device or the second access network device. Taking the first access network device as an example, continuing the first service means that before the terminal device performs the first service-related process under the coverage of the first access network device, it performs the first service-related process under the coverage of the second access network device. The first parameter is the success rate of the terminal device continuing to perform the first service-related process under the coverage of the first access network device after switching from the second access network device to the first access network device. After the terminal device switches from the second access network device to the first access network device, it needs to use the resources allocated by the first access network device for performing the first service to perform the first service-related process. The process of the terminal device switching to the first access network device to continue to perform the first service-related process can also be called switching, so the first parameter can also be called the switching success rate. The second parameter is used to characterize the success rate of the terminal device related to the newly created first service when it is covered by the first access network device or the second access network device. A newly created first service means that the terminal device has not been performing the first service before (it may be that the process related to the first service has not been performed at all, or the process related to the last execution of the first service has ended), and the terminal device initiates a service request to the first access network device or the second access network device, and creates a session for the first service based on the service request, and executes the first service after the session is created. In other words, the newly created first service is the first service when the terminal device directly initiates a service request to the first access network device or the second access network device. The process related to the newly created first service can also be called access, and the second parameter can also be called the access success rate. For example, the second parameter represents the success rate of establishing a new session for the first service, and / or the success rate of the terminal device executing the first service after the new session is established.

[0016] Through this implementation, the first access network device can determine the threshold of the first resource based on the first parameter and / or the second parameter, so that the resource allocation of both the switching and access processes can be taken into account, the resources occupied by the switching and access processes can be balanced, and the connection establishment failure caused by insufficient switching resources (resources used for the switching process) or access resources (resources used for the access process) is reduced, which is conducive to improving the quality of communication services, and can reduce the waste of resources caused by unilateral excess of switching resources or access resources, thereby improving resource utilization.

[0017] In one possible implementation, a first access network device determines a first threshold for a first resource based on first information, including: the first access network device determines a first adjustment factor based on the first information, where the first adjustment factor is used to adjust a second threshold, where the second threshold is the original threshold for the first resource of the first cell. The first access network device determines the first threshold based on the first adjustment factor and the second threshold. In this implementation, the first access network device can determine the adjustment factor for the original threshold based on the first information, and then adjust the original threshold to obtain the first threshold.

[0018] In one possible implementation, the first access network device may compare a first parameter and a second parameter and determine the first adjustment factor based on the comparison result of the first and second parameters. If the comparison result indicates that the difference between the first and second parameters is greater than or equal to a first threshold, the first adjustment factor is zero. Alternatively, if the comparison result indicates that the difference between the first and second parameters is less than the first threshold, the difference is determined as the first adjustment factor. The difference value indicates the degree of difference between the first and second parameters. For example, the difference value is the difference between the first and second parameters.

[0019] In one possible implementation, considering that the service success rates that need to be achieved in different cells may be different, the first access network device can determine the first threshold of the first resource based on the first information and the first weight, where the first weight is the weight corresponding to the first wave position, and the first wave position is the wave position where the first cell is located. Through this implementation, the resource threshold can be adjusted in a targeted manner according to the respective weights of different cells to improve the accuracy of the threshold. For example, when the first information includes the first parameter and the second parameter, the first weight can include the sub-weights of the first parameter and the second parameter, so that the threshold of the switching resource can be adjusted in a targeted manner according to the success rate requirements of the first cell for the switching process and the access process, so that the threshold can guarantee the current demand for switching resources and access resources as much as possible.

[0020] In one possible implementation, the first access network device may obtain the first weight in various ways. For example, one implementation for the first access network device to obtain the first weight includes receiving the first weight, where the first weight is included in second information, where the second information also includes information indicating that the first access network device covers the first cell. For example, the second information comes from a core network device and is information notifying the first access network device of its coverage of the first cell. Alternatively, another implementation for the first access network device to obtain the first weight includes receiving the first weight, where the first weight is included in third information, where the third information is also used to configure the transmit beam and / or receive beam of the first cell. For example, the third information comes from a second access network device and is information notifying the first access network device of the beam configuration of the first cell. With either of these two implementations, when an access network device handover occurs, the first weight of the first cell can be transmitted to the first access network device. The first access network device can then determine the first threshold based on the first weight of the first cell to improve the accuracy of the first threshold.

[0021] In a second aspect, a communication method is provided. The method can be performed by a first access network device, the first access network device being located in a mobile device, such as a satellite, a vehicle, a ship, or an aircraft. Taking the mobile device as a satellite as an example, the first access network device can be a satellite, or can be other devices including a satellite, or can be a chip system (or chip) or other functional module, the chip system or functional module being capable of implementing satellite functions, such as being located in a satellite. The method includes: the first access network device sending fifth information, the fifth information being used to configure first resources, the first resources including resources related to a first service for a terminal device when covered by the first access network device, the quantity of the first resources being less than or equal to a first threshold, the first threshold being used to indicate an upper limit on the quantity of the first resources within a first cell, the first threshold being determined based on the first information. Before being covered by the first access network device, the first cell was covered by a second access network device. The first information is used to indicate a success rate of the terminal device related to the first service when covered by the first access network device or the second access network device.

[0022] In one possible implementation, the terminal device is located within the coverage of the first cell both before and after establishing a communication connection with the first access network device. Alternatively, the terminal device is located within the coverage of the second cell before establishing a communication connection with the first access network device.

[0023] In a possible implementation manner, the first access network device obtaining the first information of the first cell may include receiving the first information.

[0024] In one possible implementation, the first access network apparatus may receive the first information in multiple ways. For example, one implementation of the first access network apparatus receiving the first information includes including the first information in second information, where the second information further includes information indicating that the first access network apparatus covers the first cell. Another implementation of the first access network apparatus receiving the first information includes including the first information in third information, where the third information is further used to configure a transmit beam and / or receive beam for the first cell.

[0025] In one possible implementation, the first information may include a first parameter and / or a second parameter. The first parameter is used to represent a success rate of the terminal device continuing the first service when covered by the first access network device or the second access network device; the second parameter is used to represent a success rate of the terminal device associated with the newly created first service when covered by the first access network device or the second access network device.

[0026] In one possible implementation, the first access network apparatus determines a first adjustment factor based on the first information, where the first adjustment factor is used to adjust a second threshold, where the second threshold is an original threshold of the first resource of the first cell. The first access network apparatus determines the first threshold based on the first adjustment factor and the second threshold.

[0027] In one possible implementation, the first access network device may compare a first parameter and a second parameter, and determine the first adjustment factor based on the comparison result of the first and second parameters. If the comparison result indicates that the difference between the first and second parameters is greater than or equal to a first threshold, the first adjustment factor is zero. Alternatively, if the comparison result indicates that the difference between the first and second parameters is less than the first threshold, the difference is determined as the first adjustment factor.

[0028] In a possible implementation, the first access network device may determine a first threshold of the first resource based on the first information and a first weight, where the first weight is a weight corresponding to a first waveband, and the first waveband is the waveband where the first cell is located.

[0029] In one possible embodiment, the first access network device may obtain the first weight in a variety of ways. For example, one way for the first access network device to obtain the first weight includes receiving the first weight, the first weight being included in second information, the second information also including information for indicating that the first access network device covers the first cell. For example, the second information is information for the core network device notifying the first access network device that it covers the first cell. Another way for the first access network device to obtain the first weight includes receiving the first weight, the first weight being included in third information, the third information also being used to configure the transmit beam and / or receive beam of the first cell. For example, the third information is information for the second access network device to notify the first access network device of the beam configuration of the first cell.

[0030] Regarding the technical effects brought about by the second aspect or various optional implementations, reference may be made to the introduction to the technical effects of the first aspect or corresponding implementations.

[0031] According to a third aspect, a communication method is provided, which can be executed by a second access network device, and the second access network device is located in a mobile device, and the mobile device includes, for example, a satellite, a vehicle, a ship, or an airplane. Taking the mobile device as a satellite as an example, the second access network device can be a satellite, or other devices including a satellite, or a chip system (or chip) or other functional modules, and the chip system or functional module can realize the functions of the satellite, and the chip system or functional module is, for example, set in a satellite. The method includes: the second access network device determines first information of a first cell, the second access network device covers the first cell, and the first information is used to characterize the success rate of the terminal device related to the first service when it is covered by the second access network device. The second access network device determines that the first access network device covers the first cell. The second access network device sends third information to the first access network device, and the third information is used to configure the transmit beam and / or receive beam of the first cell, and the third information also includes the first information.

[0032] In one possible implementation, the second access network device determining that the first access network device covers the first cell includes: the second access network device receiving fourth information, the fourth information indicating that the first access network device covers the first cell. The second access network device determining, based on the fourth information, that the first access network device covers the first cell. For example, the fourth information comes from a core network device, and is information notifying the second access network device of a switch to an access network device covering the first cell.

[0033] In one possible implementation, the first information includes a first parameter and / or a second parameter. The first parameter is used to represent a success rate of the terminal device continuing the first service when covered by the second access network device. The second parameter is used to represent a success rate of the terminal device associated with the newly created first service when covered by the second access network device.

[0034] In one possible implementation, the second access network apparatus determines first information of the first cell, including: the second access network apparatus determines a first quantity based on the total number of terminal devices in the first cell and a first activation factor, where the first activation factor represents a probability that a terminal device initiates and obtains the first service. The second access network apparatus determines a second parameter based on the first quantity and a second quantity, where the second quantity represents the number of terminal devices that successfully execute the first service when the second access network apparatus covers the first cell.

[0035] In a possible embodiment, the third information also includes a first weight corresponding to a first wave position, where the first wave position is the wave position where the first cell is located; wherein the first weight is used to adjust a first threshold of a first resource of the first cell, and the first resource includes resources related to a first service when the terminal device is covered by the second access network device or the first access network device, and the first threshold is used to indicate an upper limit on the quantity of the first resource in the first cell.

[0036] Regarding the technical effects brought about by the third aspect or various optional implementations, reference may be made to the introduction to the technical effects of the first aspect or corresponding implementations.

[0037] In a fourth aspect, a communication method is provided, which can be executed by a core network device. The core network device can be a core network device, or other device including a core network device, or a chip system (or, chip) or other functional module. The chip system or functional module can realize the function of the core network device. The chip system or functional module is, for example, set in the core network device. The method includes: the core network device determines that a first cell is covered by a first access network device, the first cell is covered by a second access network device, and the first access network device and / or the second access network device are located in a movable device. The core network device sends second information to the first access network device, the second information includes information for indicating that the first access network device covers the first cell, the second information also includes first information of the first cell, and the first information is used to characterize the success rate of the terminal device related to the first service when it is covered by the second access network device.

[0038] In one possible implementation, the first information may include a first parameter and / or a second parameter. The first parameter is used to represent a success rate of the terminal device continuing the first service when covered by the second access network device. The second parameter is used to represent a success rate of the terminal device associated with the newly created first service when covered by the second access network device.

[0039] In one possible embodiment, the second information also includes a first weight corresponding to a first wave position, where the first wave position is the wave position where the first cell is located; wherein the first weight is used to adjust a first threshold of a first resource of the first cell, and the first resource includes resources related to a first service for the terminal device when the terminal device is covered by the second access network device or the first access network device, and the first threshold is used to indicate an upper limit on the quantity of the first resource in the first cell.

[0040] Regarding the technical effects brought about by the fourth aspect or various optional implementations, reference may be made to the introduction to the technical effects of the first aspect or corresponding implementations.

[0041] In a fifth aspect, a communication device is provided. The communication device may be the access network device described in any one of the first to fourth aspects above, and the access network device may be a first access network device or a second access network device. The communication device has the functions of the above-mentioned access network device. The access network device may be, for example, an access network device, or other device including the functions of an access network device, or a chip system (or chip) or other functional module, which may implement the functions of the access network device, and the chip system or functional module may be, for example, provided in the access network device. In an optional implementation, the communication device includes a baseband device and a radio frequency device. In another optional implementation, the communication device includes a processing unit (sometimes also referred to as a processing module) and a transceiver unit (sometimes also referred to as a transceiver module). The transceiver unit may implement a sending function and a receiving function. When the transceiver unit implements the sending function, it may be referred to as a sending unit (sometimes also referred to as a sending module), and when the transceiver unit implements the receiving function, it may be referred to as a receiving unit (sometimes also referred to as a receiving module). The sending unit and the receiving unit can be the same functional module, which is called a transceiver unit, and the functional module can realize the sending function and the receiving function; or the sending unit and the receiving unit can be different functional modules, and the transceiver unit is a general term for these functional modules.

[0042] In an optional embodiment, the processing unit is configured to obtain first information about a covered first cell, the first information being used to represent a success rate of a terminal device associated with a first service when covered by the first access network device or the second access network device, and the first cell being covered by the second access network device before being covered by the first access network device. A first threshold for first resources is determined based on the first information, the first resources including resources associated with the first service for the terminal device when covered by the first access network device, and the first threshold being used to indicate an upper limit on the quantity of the first resources within the first cell.

[0043] In another optional embodiment, the transceiver unit (or, sending unit) is used to send first information, the first information is used to configure first resources, the first resources include resources related to the first service for the terminal device when it is covered by the first access network device, the number of first resources is less than or equal to the first threshold, the first threshold is used to indicate the upper limit of the number of first resources in the first cell, and the first threshold is determined based on the first information. Before being covered by the first access network device, the first cell is covered by the second access network device. The first information is used to characterize the success rate of the terminal device related to the first service when it is covered by the first access network device or the second access network device.

[0044] In another optional embodiment, the processing unit is configured to determine first information about a first cell, where the second access network device covers the first cell, the first information being used to characterize a success rate of the terminal device associated with the first service when covered by the second access network device. It is determined that the first access network device covers the first cell. The transceiver unit (or, transmitting unit) is configured to send third information to the first access network device, where the third information is used to configure a transmit beam and / or receive beam of the first cell, and the second information also includes the first information.

[0045] In an optional embodiment, the communication device also includes a storage unit (sometimes also referred to as a storage module), and the processing unit is used to couple with the storage unit and execute the program or instructions in the storage unit, enabling the communication device to perform the functions of the access network device described in any one of the first to fourth aspects above.

[0046] In a sixth aspect, a communication device is provided. The communication device may be the core network device described in any one of the first to fourth aspects. The communication device has the functions of the core network device described above. The core network device is, for example, a core network device, or other device including the functions of a core network device, or a chip system (or chip) or other functional module. The chip system or functional module can implement the functions of the core network device, and the chip system or functional module is, for example, provided in the core network device. In an optional implementation, the communication device includes a baseband device and a radio frequency device. In another optional implementation, the communication device includes a processing unit (sometimes also referred to as a processing module) and a transceiver unit (sometimes also referred to as a transceiver module). The transceiver unit can implement a sending function and a receiving function. When the transceiver unit implements the sending function, it can be called a sending unit (sometimes also referred to as a sending module). When the transceiver unit implements the receiving function, it can be called a receiving unit (sometimes also referred to as a receiving module). The sending unit and the receiving unit can be the same functional module, which is called a transceiver unit, and the functional module can realize the sending function and the receiving function; or the sending unit and the receiving unit can be different functional modules, and the transceiver unit is a general term for these functional modules.

[0047] In an optional embodiment, the transceiver unit (or, the sending unit) is used to determine that the first cell is covered by the first access network device, the first cell is covered by the second access network device, and the first access network device and / or the second access network device are located in a movable device. The transceiver unit (or, the sending unit) is used to send second information to the first access network device, the second information including information indicating that the first access network device covers the first cell, the second information also including first information of the first cell, the first information being used to represent a success rate of the terminal device related to the first service when covered by the second access network device.

[0048] In an optional embodiment, the communication device also includes a storage unit (sometimes also referred to as a storage module), and the processing unit is used to couple with the storage unit and execute the program or instructions in the storage unit, enabling the communication device to perform the functions of the core network device described in any one of the first to fourth aspects above.

[0049] In a seventh aspect, a communication device is provided. The communication device may be an access network device, or a chip or chip system used in an access network device. The communication device includes a communication interface and a processor, and optionally, a memory. The memory is used to store a computer program, and the processor is coupled to the memory and the communication interface. When the processor reads the computer program or instructions, the communication device executes the method performed by the access network device (such as the first access network device or the second access network device) in the above aspects.

[0050] In an eighth aspect, a communication device is provided. The communication device may be a core network device, or a chip or chip system used in a core network device. The communication device includes a communication interface and a processor, and optionally, a memory. The memory is configured to store a computer program. The processor is coupled to the memory and the communication interface. When the processor reads the computer program or instructions, the communication device executes the method performed by the core network device in each of the above aspects.

[0051] In the ninth aspect, a communication system is provided, comprising an access network device (such as the first access network device and / or the second access network device mentioned above) and a core network device. The access network device is used to execute the method described in the first or fourth aspect above and executed by the access network device (such as the first access network device or the second access network device mentioned above), and the core network device is used to execute the method described in the first or fourth aspect above and executed by the core network device. For example, the access network device can be implemented by the communication device described in the fifth or seventh aspect, and the core network device can be implemented by the communication device described in the sixth or eighth aspect. Optionally, the communication system may also include other devices or equipment, such as terminal equipment and / or other devices other than the core network device and the access network device, without limitation thereto.

[0052] In the tenth aspect, a computer-readable storage medium is provided, which is used to store computer programs or instructions. When the computer program or instructions are executed, the methods performed by the access network device and / or core network device in the above aspects are implemented.

[0053] In an eleventh aspect, a computer program product comprising instructions is provided, wherein when the computer program or instructions are executed on a computer, the methods described in the above aspects are implemented.

[0054] In the twelfth aspect, a chip system is provided, comprising a processor and an interface, wherein the processor is used to call and execute instructions from the interface so that the chip system implements the above-mentioned methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] 1A to 1C are schematic diagrams of communication systems applicable to embodiments of the present application;

[0056] Figures 2A and 2B are schematic diagrams of two satellite operating modes;

[0057] FIG3 is a schematic flow chart of a communication method provided in an embodiment of the present application;

[0058] FIG4 is a schematic diagram of channel resource division;

[0059] FIG5 is a schematic flow chart of the resource management process;

[0060] FIG6 is another schematic flow chart of a communication method provided in an embodiment of the present application;

[0061] FIG7 is another schematic flow chart of a communication method provided in an embodiment of the present application;

[0062] FIG8 is a schematic diagram of a device provided in an embodiment of the present application;

[0063] FIG9 is a schematic diagram of another device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0064] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0065] In the embodiments of the present application, for the number of nouns, unless otherwise specified, it means "singular noun or plural noun", that is, "one or more". "At least one" means one or more, and "plural" means two or more (including two). "And / or" describes the association relationship of associated objects, indicating that there may be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. For example, A / B means: A or B. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c means: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, c can be single or multiple.

[0066] The ordinal numbers such as "first" and "second" mentioned in the embodiments of the present application are used to distinguish between multiple objects, and are not used to limit the size, content, order, timing, priority or importance of multiple objects. In addition, the numbering of the steps in the various embodiments introduced in this application is only for distinguishing different steps, and is not used to limit the order between the steps. For example, step 301 may occur before step 302, or may occur after step 302, or may also occur at the same time as step 302. In addition, in the embodiments of the present application, "used for indication" may include being used for direct indication and being used for indirect indication, or "used for characterization" may include being used for direct characterization and being used for indirect characterization. For example, when describing a certain indication information for indicating A, it may include that the indication information directly indicates A or indirectly indicates A, and it does not mean that A must be included in the indication information.

[0067] The technology provided in the embodiments of the present application can be applied to various communication systems, such as satellite communication systems, high altitude platform station (HAPS) communication systems, drones and other non-terrestrial network (NTN) systems; for example, integrated communication and navigation (IcaN) systems, global navigation satellite systems (GNSS) and ultra-dense low-orbit satellite communication systems. The communication system applied in the embodiments of the present application can be integrated with the ground communication system. For example, the ground communication system can be a fourth generation (4G) communication system (for example, a long term evolution (LTE) system), a world-wide interoperability for microwave access (WiMAX) communication system, a fifth generation (5G) communication system (for example, a new radio (NR) system), or a future communication system.

[0068] Figure 1A is a schematic diagram of the architecture of a communication system 1000 used in an embodiment of the present application. As shown in Figure 1A, the communication system includes a radio access network 100 and a core network 200. Optionally, the communication system 1000 may also include the Internet 300. The radio access network 100 may include at least one radio access network (RAN) device (such as 110a, 110b, and 110c in Figure 1A) and may also include at least one terminal device (such as 120a-120j in Figure 1A). The terminal device is connected to the radio access network device wirelessly, and the radio access network device is connected to the core network via wireless or wired means. The core network device and the radio access network device may be independent and different physical devices, or the functions of the core network device and the logical functions of the radio access network device may be integrated into the same physical device, or a physical device may integrate some of the functions of the core network device and some of the functions of the radio access network device. Terminal devices and radio access network devices may be connected to each other via wired or wireless means. FIG1A is only a schematic diagram. The communication system may further include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG1A .

[0069] The access network device is a device with wireless transceiver functions, which is used to communicate with the terminal device. The access network device includes but is not limited to a base station (base transceiver station (BTS), Node B, evolved node B (eNodeB) / eNB, or the next generation node B (gNodeB) / gNB), a transmission reception point (TRP), a base station subsequently evolved by the 3rd Generation Partnership Project (3GPP), an access node in a wireless fidelity (Wi-Fi) system, a wireless relay node, a wireless backhaul node, etc. The base station can be: a macro base station (such as 110a in Figure 1A), a micro base station, a pico base station, an indoor station (such as 110b in Figure 1A), a small station, a relay station, etc. Multiple base stations can support networks with the same access technology or networks with different access technologies. A base station can include one or more co-sited or non-co-sited transmission and reception points. The access network device may also be a wireless controller, a centralized unit (CU), and / or a distributed unit (DU) in a cloud radio access network (CRAN) scenario. The access network device may also be a server, etc. For example, the network device in the V2X technology may be a road side unit (RSU). The following describes the access network device using a base station as an example. The base station can communicate with the terminal device, or it can communicate with the terminal device through a relay station. The terminal device can communicate with multiple base stations in different access technologies. The core network device is used to implement functions such as mobility management, data processing, session management, policy and billing. The names of the devices that implement core network functions in systems with different access technologies may be different, and the embodiments of the present application are not limited to this. Taking the fifth generation mobile communication technology (5G) system as an example, the core network equipment includes: access and mobility management function (AMF), session management function (SMF), policy control function (PCF) or user plane function (UPF), etc.

[0070] In the CU-DU architecture, the access network equipment may include one or more logical network elements such as a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). The CU and DU may be configured separately or included in the same network element, such as a baseband unit (BBU). The RU may be included in a radio frequency device or radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0071] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, CU may also be called open CU (O-CU), DU may also be called O-DU, CU-CP may also be called O-CU-CP, CU-UP may also be called O-CU-UP, and RU may also be called O-RU. For the convenience of description, the embodiments of the present application are described by taking CU, CU-CP, CU-UP, DU and RU as examples. Any of the CU (or CU-CP, CU-UP), DU and RU in the embodiments of the present application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0072] Optionally, in various embodiments of the present application, if the network device is a distributed architecture, for example, the network device includes a CU and a DU, or includes a CU-CP, a CU-UP and a DU, then the network device sends information to the UE, specifically, the DU included in the network device sends information to the UE; the network device receives information from the UE, specifically, the DU included in the network device receives information from the UE.

[0073] In the embodiments of the present application, the form of the access network device is not limited. The device used to implement the functions of the access network device can be the access network device; it can also be a device that supports the access network device to implement the functions, such as a chip system. The device can be installed in the access network device or used in conjunction with the access network device.

[0074] A terminal device is a device with wireless transceiver capabilities, which can be a fixed device, a mobile device, a handheld device (such as a mobile phone), a wearable device, an in-vehicle device, or a wireless device built into the above devices (such as a communication module, a modem, or a chip system, etc.). The terminal device is used to connect people, objects, machines, etc. and can be widely used in various scenarios, such as but not limited to the following scenarios: perception scenarios, cellular communications, device-to-device communication (D2D), vehicle to everything (V2X), machine-to-machine / machine-type communications (M2M / MTC), Internet of Things (IoT), virtual reality (VR), augmented reality (AR), industrial control, self-driving, remote medical, smart grid, smart furniture, smart office, smart wearable, smart transportation, smart city, drones, robots, indoor commercial scenarios (such as mobile phone screen projection, file sharing, mobile phone to VR glasses video transmission) and other scenarios. When the terminal device is applied to V2X, it can also be called a V2X device, for example, a smart car (or intelligent car), a digital car, an unmanned car (or driverless car or pilotless car or automobile), a self-driving car (or autonomous car), a pure electric vehicle (or battery EV), a hybrid electric vehicle (HEV), a range-extended EV (REEV), a plug-in hybrid electric vehicle (PHEV), a new energy vehicle (new energy vehicle), or a roadside unit (RSU). The terminal device can also be a device used in D2D communication, such as an electricity meter or water meter.

[0075] In addition, in the embodiments of the present application, the terminal device can also be a terminal device in an IoT system. IoT is an important part of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network of human-machine interconnection and object-to-object interconnection.

[0076] The various terminal devices described above, if located on a vehicle (e.g., placed in or installed in a vehicle), can be considered as vehicle-mounted terminal devices, which are also referred to as on-board units (OBUs). The terminal device of the present application can also be an on-board module, on-board module, on-board component, on-board chip, or on-board unit 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, on-board component, on-board chip, or on-board unit.

[0077] The terminal device may sometimes be referred to as user equipment (UE), terminal, access station, UE station, remote station, wireless communication device, terminal device, or user device, etc. The embodiment of the present application does not limit the device form of the terminal. The device for implementing the function of the terminal may be a terminal; it may also be a device that can support the terminal to implement the function, such as a chip system. The device can be installed in the terminal or used in conjunction with the terminal. In the embodiment of the present application, the chip system can be composed of chips, or it can include chips and other discrete devices.

[0078] Access network equipment and terminal devices can be fixed or mobile. They can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; on water; and on aircraft, balloons, and satellites. The embodiments of this application do not limit the application scenarios of access network equipment and terminal devices.

[0079] The roles of access network equipment and terminal equipment can be relative. For example, the helicopter or drone 120i in Figure 1A can be configured as a mobile base station. For the UE 120j that accesses the wireless access network 100 through 120i, UE 120i is a base station; but for the base station 110a, 120i is a UE, that is, communication between 110a and 120i is carried out through a wireless air interface protocol. Of course, communication between 110a and 120i can also be carried out through an interface protocol between base stations. In this case, relative to 110a, 120i is also a base station. Therefore, base stations and UEs can be collectively referred to as communication devices. 110a and 110b in Figure 1A can be referred to as communication devices with base station functions, and 120a-120j in Figure 1A can be referred to as communication devices with UE functions.

[0080] Core network equipment refers to equipment in the core network that provides service support for terminals. At present, some examples of core network equipment are: access and mobility management function (AMF) entity, session management function (SMF) entity, user plane function (UPF) entity, etc., which are not listed here one by one. Among them, the AMF entity can be responsible for terminal access management and mobility management; the SMF entity can be responsible for session management, such as user session establishment, etc.; the UPF entity can be a functional entity of the user plane, mainly responsible for connecting to the external network. It should be noted that the entities in this application can also be referred to as network elements or functional entities. For example, the AMF entity can also be referred to as an AMF network element or an AMF functional entity. For another example, the SMF entity can also be referred to as an SMF network element or an SMF functional entity, etc.

[0081] In the embodiments of the present application, the form of the core network device is not limited. The device used to implement the functions of the core network device can be the core network device; it can also be a device that can support the core network device to implement the functions, such as a chip system. The device can be installed in the core network device or used in conjunction with the core network device.

[0082] In the embodiments of the present application, the access network device for implementing the access network device function is located in a mobile device. The mobile device includes, for example, a terrestrial or non-terrestrial mobile device. The terrestrial mobile device includes, for example, a vehicle-mounted device or a handheld device. The non-terrestrial mobile device includes, for example, a device on the water surface or a device in the air. If the non-terrestrial mobile device is a non-terrestrial network, the communication system may also be referred to as a non-terrestrial network (NTN) communication system.

[0083] Based on the description of the communication system architecture shown in Figure 1A, the embodiment of the present application uses a non-terrestrial network (NTN) communication system as an example. The NTN, which includes nodes such as satellite networks, high-altitude platforms, and drones, offers significant advantages, including global coverage, long-distance transmission, flexible networking, convenient deployment, and freedom from geographical restrictions. It has been widely used in a variety of fields, including maritime communications, positioning and navigation, disaster relief, scientific experiments, video broadcasting, and Earth observation. The integration of terrestrial 5G networks and satellite networks, leveraging their strengths and weaknesses, together forms a seamless, integrated global communication network covering land, sea, air, space, and ground, meeting the diverse service needs of users everywhere. In the embodiments of the present application, NTN communication is exemplified by satellite communication, or, more precisely, the NTN communication system is exemplified by a satellite system. As shown in Figure 1B, the NTN communication system includes a satellite 201 and a terminal device 202. The explanation of terminal device 202 can refer to the above description of terminal devices. Satellite 201 can also be referred to as a high-altitude platform, a high-altitude aircraft, or a satellite base station. Considering the NTN communication system in relation to the terrestrial network communication system, satellite 201 can be considered as one or more network devices within the terrestrial network communication system architecture. Satellite 201 provides communication services to terminal device 202 and can also connect to core network equipment. The structure and functions of satellite 201 can also be referenced to the above description of network devices. The communication method between satellite 201 and terminal device 202 can also be referenced to the description in FIG. 1A . This description will not be repeated here. The solutions in the embodiments of this application can also be applied directly to terrestrial communication networks, or after minor modifications as would be appreciated by those skilled in the art, and will not be further described here.

[0084] Take the NTN communication system as an example of a satellite mobile communication system for illustration. Figure 1C is a schematic diagram of the architecture of a satellite mobile communication system that can be applied to an embodiment of the present application. As shown in Figure 1C, the satellite mobile communication system includes: 2 terminal devices (which can be referred to as terminals), 2 satellite base stations (5G base stations 1 to 2 as shown in Figure 1C), a ground station, and a 5G core network. Satellite base station, also known as satellite base station (satellite gNB, S-gNB). Among them, the satellite base station and the terminal device can communicate through the 5G new air interface. The two satellite base stations can communicate through the Xn interface. The satellite base station is connected to the ground station through the NG interface. The ground station is connected to the core network through the NG interface, and the NG interface can be wired or wireless. Satellites can usually form multiple beams, each beam is similar to a cell / sector in a terrestrial mobile communication system (such as LTE / NR).

[0085] 5G base station: mainly used to provide wireless access services, dispatch wireless resources to access terminal devices, provide reliable wireless transmission protocols and data encryption protocols, etc.

[0086] 5G Core Network: Primarily responsible for providing functions such as user access control, mobility management, session management, user security authentication, and billing. The core network consists of multiple functional units, which can be divided into control plane functional units and user plane processing units. The control plane functional units (or network elements) include the access and mobility management function (AMF) and the session management function (SMF). The AMF is responsible for user access management, security authentication, and mobility management. The SMF is responsible for terminal device session management (including session establishment, modification, and release), user plane functional network element selection and reselection, terminal device Internet Protocol (IP) address allocation, quality of service (QoS) control, and selection of the UPF network element that provides packet forwarding functions. The user plane processing unit (or network element) includes the user plane function (UPF) unit, which is responsible for managing user plane data transmission, traffic statistics, and other functions.

[0087] Ground station: Mainly responsible for forwarding signaling and business data between satellite and base station, or between satellite and core network.

[0088] 5G New Radio: refers to the wireless link between terminal devices and base stations.

[0089] Xn interface: represents the interface between 5G satellite base stations, mainly used for signaling interaction such as switching.

[0090] NG interface: refers to the interface between a 5G base station and the 5G core network, or the interface between a ground station and the core network, or the interface between a satellite base station and a ground station (in this case, the interface is a wireless link). It mainly interacts with the core network's non-access stratum (NAS) and other signaling, as well as user service data.

[0091] In LEO satellite communication systems, the operating modes of payloads (such as beams) can be divided into staring (earth-fixed or quasi-earth fixed) mode and non-staring (earth-moving) mode. In non-staring mode, the satellite's beam coverage moves with the satellite. As shown in Figure 2A, during the period from time T1 to T3, the satellite moved, but the satellite's beam pointing did not change, causing the satellite's beam coverage to change as the satellite moved. In staring mode, the satellite dynamically adjusts its own beam pointing through technologies such as satellite attitude adjustment in the air and phased array parameter adjustment, so that the beam approximately covers the same area on the ground. As shown in Figure 2B, during the period from time T1 to T3, although the satellite moved, the satellite's beam pointing also changed, so that the satellite's beam approximately covers the same area on the ground. Compared with the non-staring mode, the staring mode can increase the time the satellite provides services to terminal devices and reduce the frequency of inter-satellite switching.

[0092] However, due to the large number of LEO satellites and their high-speed movement, when LEO satellite 1 moves away from its current terrestrial cell 1 and LEO satellite 2 takes over coverage of that terrestrial cell, this is equivalent to a network-side handover (for example, the base station covering cell 1 switches from the base station of LEO satellite 1 to the base station of LEO satellite 2), and the terminal device within cell 1 needs to establish a communication connection with LEO satellite 2. When a terminal device moves at high speed from terrestrial cell 1 covered by LEO satellite 1 to terrestrial cell 2 covered by LEO satellite 2, a mobility handover is performed on the terminal device side, and the terminal device needs to establish a communication connection with the new LEO satellite 2. The process of a terminal device switching from LEO satellite 1 to establishing a communication connection with LEO satellite 2 can be called an inter-satellite handover.

[0093] In view of this, the present application provides a communication method, in which the inter-satellite handover process of the terminal device is implemented, thereby improving the service continuity of the terminal device during the inter-satellite handover triggered by the movement of the satellite or the terminal device.

[0094] On the other hand, if a terminal device is performing a certain service under the coverage of LEO satellite 1, in order to ensure service continuity, during inter-satellite handover, LEO satellite 2 needs to continue to provide resources for the service of the terminal device that has been handed over, so that the terminal device can continue to perform the service using these resources. However, the resources provided by the LEO satellite for this service may be limited. When all the resources provided by the LEO satellite for this service are occupied, no service resources will be provided to the terminal device that has been handed over, resulting in the interruption of the terminal device's service. Alternatively, the LEO satellite may provide more resources for executing this service, but if the LEO satellite provides too many resources, some of these resources may never be used, resulting in the waste of these resources and reduced resource utilization.

[0095] Therefore, resource management is essential. Resource management refers to the planning and scheduling of mobile communication system resources. Appropriate resource management helps improve resource utilization, thereby enhancing the quality of service (QoS) of the mobile communication system. Resource management can include channel resource management and device resource management. Channel resource management refers to the planning and scheduling of air interface resources in a mobile communication system. Its goal is to efficiently utilize limited channel resources and ensure QoS. Device resource management can also be understood as the management of onboard capabilities, enabling the management of one or more resources, such as computing or storage resources, on a satellite.

[0096] In view of this, in the communication method provided in the embodiment of the present application, the first threshold of the first resource can be adjusted according to the success rate, so that the first threshold can meet the current demand of the first cell for the first resource. Compared with the method of setting a fixed resource threshold, the embodiment of the present application can set the threshold according to the actual resource demand, thereby reducing the failure of the first service due to insufficient first resources, which is conducive to improving the quality of communication services, and can also reduce the waste of resources caused by unreasonable resource threshold settings, thereby improving resource utilization.

[0097] The communication method provided by the embodiments of the present application is further described in detail below with reference to the accompanying drawings. The various embodiments of the present application can be performed by an access network device, a core network device, and a terminal device. The access network device is, for example, an access network device, or a functional module capable of performing the method provided by the embodiments of the present application. The functional module can be provided in the access network device, such as a chip system in the access network device; or the functional module can also be provided independently of the access network device. For convenience of description, the following description is based on the example of an access network device being a RAN device. The core network device is, for example, a core network device, or a functional module capable of performing the method provided by the embodiments of the present application. The functional module can be provided in the core network device, such as a chip system in the core network device; or the functional module can also be provided independently of the core network device. The terminal device is, for example, a terminal device, or a functional module capable of performing the method provided by the embodiments of the present application. The functional module can be provided in the terminal device, such as a chip system in the terminal device; or the functional module can also be provided independently of the terminal device. For convenience of description, the following description is based on the example of a terminal device being a UE. In the following introduction, the access network device is an access network device, the core network device is a core network device, and the terminal device is a terminal device. The methods provided in each embodiment of the present application can be applied to the network architecture shown in Figures 1A to 1C. For example, the core network device involved in each embodiment of the present application can be the core network device in Figures 1A to 1C; the access network device involved in each embodiment of the present application can be the access network device in Figures 1A to 1C, and the terminal device involved in each embodiment of the present application can be the terminal device in Figures 1A to 1C. Unless otherwise specified in the following text, the steps represented by dotted lines in the accompanying drawings corresponding to each embodiment of the present application are all optional steps.

[0098] The embodiment of the present application provides a communication method, please refer to Figure 3. For example, Figure 3 shows the process of the method.

[0099] Step 301: A first RAN device obtains first information about a first covered cell. The first information is used to represent a success rate of a UE associated with a first service when the UE is covered by the first RAN device or the second RAN device. Alternatively, the first information may be used to represent a success rate of a UE associated with the first service when the UE is covered by the first RAN device or the second RAN device.

[0100] Before being covered by the first access network device, the first cell is covered by the second access network device. The first cell being covered by the second RAN device may also mean that the first cell is provided by the second RAN device, or that the first cell is served by the second RAN device, or that the first cell is served by the second RAN device, or that the first cell is covered by the second RAN device.

[0101] The first RAN device is located in a removable device. For example, the first RAN device is located in a satellite. Alternatively, the first RAN device is a removable device. For example, the first RAN device is a satellite. The satellite is, for example, a LEO satellite. The first RAN device may also be located in other removable devices, without limitation.

[0102] The second RAN device is located in a removable device. For example, the second RAN device is located in a satellite. Alternatively, the second RAN device is a removable device. For example, the second RAN device is a satellite. The satellite is, for example, a LEO satellite. The second RAN device may also be located in other removable devices, without limitation.

[0103] In one embodiment, the first RAN device and / or the second RAN device operates in staring mode, or the first RAN device and / or the second RAN device adopts staring mode. That is, during the period when the first RAN device or the second RAN device covers the first cell, the first RAN device or the second RAN device will dynamically adjust its own beam pointing through technologies such as satellite air attitude adjustment and phased array parameter adjustment, so that the beam approximately covers the same area on the ground, that is, the first cell, thereby increasing the coverage time of the first cell.

[0104] The first cell covered by the first RAN device includes that the first RAN device currently covers the first cell. That is, the first RAN device is currently providing network services to the UE in the first cell. Alternatively, the first cell covered by the first RAN device includes that the first RAN device is about to cover the first cell. For example, the first RAN device receives second information, and the second information includes information for indicating that the first RAN device covers the first cell. The information can also be described as switching information, that is, the switching information is used to indicate that the RAN device covering the first cell is switched from the second RAN device to the first RAN device. The second information can be switching signaling, or the second information is included in the switching signaling. The switching signaling can also be described as a switching message or a switching request, etc. Then, the first RAN device determines that it is about to cover the first cell based on the second information. The second information is, for example, sent by the second RAN device or the core network device.

[0105] The core network device may be a device responsible for access management and mobility management of terminal devices. For example, the core network device is an AMF. In one embodiment, the AMF may be deployed on the ground. For example, when the terrestrial communication system is a 5G communication system, the AMF may be the AMF in the 5G communication system. In another embodiment, the AMF may be deployed in a mobile device. For example, the AMF may be deployed on a satellite.

[0106] In an embodiment of the present application, the first information is used to characterize the success rate of the UE associated with the first service when the UE is covered by the first RAN device or the second RAN device, or can also be described as the success rate of the UE associated with the first service in the first cell. For example, the first information is used to characterize the success rate of the UE associated with the first service in the first cell during a first duration. If the first cell is covered by the first RAN device during the first duration, the first information is used to characterize the success rate of the UE associated with the first service when the UE is covered by the first RAN device during the first duration. If the first cell is covered by the second RAN device during the first duration, the first information is used to characterize the success rate of the UE associated with the first service when the UE is covered by the second RAN device during the first duration.

[0107] Among them, the first service can be any service, for example, the first service includes one or more of a voice call (or voice call) service, a video service or a data service, and there is no limitation on this. The relevant process of the first service includes establishing a session for transmitting the first service (or can also be described as establishing a connection for transmitting the first service), and / or executing the first service (for example, carrying service data on a newly established session), and the session is, for example, a protocol data unit (PDU) session or a voice bearer, or other types of sessions, and there is no limitation on this. Then, the success of the first service includes, and may include the successful execution of each stage of the first service. For example, the establishment of a session for transmitting the first service is successful, and / or the execution of the first service is successful. Alternatively, the success of the first service includes that the entire process of the UE executing the first service is completed or ended.

[0108] The success rate associated with the first service includes: the success rate of establishing a session for transmitting the first service, and / or the success rate of executing the first service. Successful execution of the first service may mean that data packets for the first service are completely transmitted, or that the packet loss rate of the first service is less than a certain value, or that a data packet for the first service is successfully transmitted, without limitation.

[0109] It should be noted that the UE in the embodiment of the present application can be understood as a type of UE, that is, a UE related to the first service that needs to be under the coverage of the first RAN device or the second RAN device, rather than a specific UE. The success rate can be described as the degree of acceptance or accommodation of the UE by the first RAN device or the second RAN device. Alternatively, the success rate can also indicate the failure rate, or indirectly indicate the failure rate. For example, if the success rate is 90%, the corresponding failure rate is 10%. Alternatively, the success rate can also be described as the degree of blocking of the process related to the first service under the coverage of the first RAN device or the second RAN device. When the blocking degree is high, the UE cannot quickly or successfully perform the process related to the first service under the coverage of the first RAN device or the second RAN device.

[0110] In one embodiment, the first RAN device obtaining the first information of the first cell includes the first RAN device determining the first information based on data related to the first service when the first RAN device covers the first cell. For example, if the first RAN device already covers the first cell, the first RAN device may determine the first information based on data related to the first service when the first RAN device covers the first cell. The first information determined by the first RAN device is used to represent a success rate related to the first service for the UE when the UE is covered by the first RAN device.

[0111] In one embodiment, the first RAN device obtaining the first information of the first cell further includes the first RAN device receiving the first information. The first information may come from, for example, a core network device or a second RAN device. The first information represents the success rate of the terminal device related to the first service when it is covered by the second access network device before the first access network device covers the first cell, and thus reflects the demand for resources for executing the first service-related process before the first access network device covers the first cell. Since the geographical area of ​​the first cell is generally considered to be fixed, or the cell parameters generally do not change, or the number of UEs in the cell does not suddenly change, the demand for resources for executing the first service-related process generally does not suddenly change before and after the first access network device covers the first cell. Therefore, the first threshold determined by the first access network device based on the demand can meet the current demand of the first cell for the first resource, thereby facilitating the first RAN device to determine the first threshold in combination with the first information.

[0112] The first RAN device receives the first information and may adopt any of the following implementation methods:

[0113] In implementation method 1, when a core network device determines that the RAN device covering the first cell is switching from the second RAN device to the first RAN device, the core network device may send first information to the first RAN device. For example, the first information may be included in the second information, and the second information may also include information indicating that the first RAN device covers the first cell. This information may also be described as handover information, i.e., the handover information indicates that the RAN device covering the first cell is switching from the second RAN device to the first RAN device. The second information may be handover signaling, or the second information may be included in the handover signaling. The handover signaling may also be described as a handover message, a handover request, or the like.

[0114] In implementation method 2, when the second RAN device determines that the RAN device of the first cell is switching from the second RAN device to the first RAN device, the second RAN device may send first information to the first RAN device. For example, based on the fourth information sent by the core network device, the second RAN device determines that the RAN device of the first cell is switching from the second RAN device to the first RAN device. The second RAN device then sends third information to the first RAN device. The third information is used to configure the transmit beam and / or receive beam of the first cell. The first information may be included in the third information. For example, the third information includes beam configuration information for the first cell, such as one or more of the position, power, frequency, or bandwidth of the beam of the first cell. The third information may also be referred to as service configuration information or beam configuration information. For another example, when the second RAN device determines that it will no longer be able to cover the first cell, it determines that the first RAN device will cover the first cell. The second RAN device may request the first RAN device to cover the first cell. The second RAN device may then send a handover request to the first RAN device to instruct the first RAN device to cover the first cell. The first information may be included in the handover request.

[0115] In one embodiment, the UE is located within the coverage of the first cell of the RAN device before and after establishing a communication connection with the first RAN device. Alternatively, the UE is located within the coverage of the second cell before establishing a communication connection with the first RAN device. If the UE is located within the coverage of the first cell before and after establishing a communication connection with the first RAN device, it indicates that the UE establishes a communication connection with the first RAN device due to a handover of the RAN device covering the first cell (from the second RAN device to the first RAN device). In this case, the UE may or may not have moved, but the UE has not moved out of the coverage of the first cell. If the UE is located within the coverage of the second cell before establishing a communication connection with the first RAN device, it indicates that the UE establishes a communication connection with the first RAN device due to the movement of the UE. In this case, the RAN device covering the first cell may or may not have been handed over, and there is no limitation on this. In summary, the embodiments of the present application are applicable to various communication scenarios and have a wide range of applicability.

[0116] In this embodiment, the UE establishes a communication connection with the first RAN device because the UE switches the RAN device to which it is connected, and the first resource is used for the UE to perform a first service-related process under the coverage of the first RAN device. This is equivalent to the first resource being a resource required to continue to perform the first service-related process due to the UE switching the RAN device to which it is connected (for example, the first resource may also be referred to as a switching resource, etc.). Thus, the first RAN device can flexibly adjust the threshold of the switching resource so that the first threshold can meet the first cell's demand for switching resources. For example, when a second RAN device covers a first cell, the UE establishes a communication connection with the second RAN device, and while the UE is performing a first service, the RAN device covering the first cell switches from the second RAN device to the first RAN device. In this case, the UE needs to establish a communication connection with the first RAN device and obtain resources related to the first service from the first RAN device to continue performing the UE's first service-related process.

[0117] In one embodiment, the first information may be determined based on a ratio of a first value and a second value, wherein the first value is the number of UEs that successfully completed the first service when covered by the second RAN device, and the second value is the number of UEs that initiated the first service when covered by the second RAN device.

[0118] In another embodiment, the first information may include one or more of the following parameters:

[0119] (1) A first parameter is used to characterize the success rate of the UE continuing the first service when it is covered by the first RAN device or the second RAN device. Taking the first RAN device as an example, continuing the first service means that before the UE performs the first service-related process under the coverage of the first RAN device, it performs the first service-related process under the coverage of the second RAN device. The first parameter is the success rate of the UE continuing to perform the first service-related process after switching to the first RAN device. After the UE switches from the second RAN device to the first RAN device, it needs to use the resources allocated by the first RAN device for performing the first service to perform the related process of the first service. The process of the UE switching to the first RAN device to continue to perform the related process of the first service can also be called switching. Therefore, the first parameter can also be called the switching success rate or the connection success rate. For example, the first parameter characterizes the success rate of establishing the connection session of the first service, and / or the success rate of the UE performing the first service after the connection session is established.

[0120] Taking the first parameter representing the success rate of the first service-related process of the UE when covered by the second RAN device as an example, one scenario is that the UE is located within the coverage of the first cell before and after establishing a communication connection with the second RAN device. That is, due to the switching on the network side, the resources provided by the RAN device originally covering the first cell for executing the first service-related process will no longer be available, and the UE needs to execute the first service-related process under the coverage of the second RAN device, and therefore needs to obtain new resources from the second RAN device to continue executing the first service-related process.

[0121] Another situation is that the first UE is located within the coverage of the second cell before establishing a communication connection with the second RAN device. That is, the first UE is moved from the coverage of the second cell to the coverage of the first cell due to mobility switching, and can no longer continue to use the resources provided by the second cell for executing the first service-related process. The first UE needs to continue to execute the first service-related process in the first cell, and therefore needs to obtain new resources from the second RAN device to continue to execute the first service-related process.

[0122] For example, in a satellite communication system, both the satellite and the UE may be in constant motion. During the execution of the UE's first service, it is very likely that the UE will move from cell 1 covered by satellite 1 to cell 2 covered by satellite 2, or that satellite 1 will leave cell 1 and cell 2 will continue to be covered by satellite 2. To ensure that the first service is not interrupted, satellite 2 is required to allocate new service resources to the UE to complete the handover and ensure service continuity. In this case, the service resources originally allocated by satellite 1 to the UE can no longer be used due to the UE's movement. The service resources can be recycled, and satellite 2 is required to allocate new service resources to the UE to achieve the purpose of resource handover for executing the first service without interrupting the first service.

[0123] For example, taking the first service as a voice call service, the satellite communication system uses a reserved channel strategy to ensure that the voice call service is not interrupted when the UE switches from satellite 1 to satellite 2. That is, when satellite 1 determines that the UE will switch to the new satellite 2, it requests reserved channel resources for the UE in the channel resources of the satellite 2 to be accessed through the inter-satellite link. The reserved channel resources are only for the UE to switch. For satellite 2, when a new reserved channel request arrives, if the number of channel resources reserved by satellite 2 is less than the reserved channel threshold, the reservation request is accepted; otherwise, the request is rejected. For example, satellite 1 obtains information such as the UE's location information, movement direction, speed, and access time, estimates the time when the UE leaves the cell covered by satellite 1 and the cell covered by satellite 2 to be accessed, and requests reserved channel resources for the UE in the channel resources of satellite 2 to be accessed through the inter-satellite link. The reserved channel resources are only for the UE to switch. Alternatively, when satellite 1 determines that it will leave the covered cell based on its own location information, movement direction, speed and other information, or when the core network equipment notifies that the cell covered by satellite 1 will be switched to satellite 2, satellite 1 reserves channel resources for the UE in the channel resources of satellite 2 for the UE in the call through the inter-satellite link. The reserved channel resources are only for UE switching.

[0124] For the first RAN device or the second RAN device, the handover success rate can be determined according to the ratio of the third value to the fourth value. The third value is the number of UEs that have successfully switched, and the UE that has successfully switched refers to a UE that successfully continues to execute the first service-related process when it is covered by the second RAN device after the handover is triggered, or a UE that successfully obtains resources allocated by the second RAN device for continuing to execute the first service-related process. The fourth value is the number of UEs that request handover, and the UE that requests handover refers to a UE that requests to continue to execute the first service-related process when it is covered by the second RAN device after the handover is triggered. In one possible implementation, the handover success rate is the ratio of the third value to the fourth value, that is, p switch represents the handover success rate (i.e., the first parameter), which can be calculated as follows:

[0125] Among them, NS success is the number of UEs that have been successfully handed over, NS request The number of UEs requesting handover.

[0126] (2) A second parameter is used to characterize the success rate of the newly created first service when the UE is covered by the first RAN device or the second RAN device. The newly created first service means that the UE has not been performing the first service before (it may be that the process related to the first service has not been performed at all, or the process related to the last execution of the first service has ended), and the UE initiates a service request to the first RAN device or the second RAN device, and creates a session for the first service based on the service request, and executes the first service after the session is created. In other words, the newly created first service is the first service when the UE directly initiates a service request to the first RAN device or the second RAN device, and is distinguished from the first service switched from other RAN devices. The process related to the newly created first service can also be called access, and the second parameter can also be called the access success rate. For example, the second parameter characterizes the success rate of establishing a new session for the first service, and / or the success rate of the UE executing the first service after the new session is established.

[0127] In one embodiment, for the first RAN device or the second RAN device, the access success rate can be determined based on the ratio of the fifth value to the sixth value. The fifth value is the number of UEs that successfully access, that is, the number of UEs that initiate access requests (or are called creation requests for the first service) and successfully implement the first service-related process when covered by the second RAN device, or the number of UEs that initiate access requests and successfully obtain resources allocated by the second RAN device for executing the first service-related process. The fourth value is the number of UEs that request access (or are called requests to create the first service), that is, the number of UEs that initiate access requests (or are called creation requests for the first service). In one possible embodiment, the access success rate is the ratio of the fifth value to the sixth value, that is, p access represents the access success rate, which can be calculated as follows:

[0128] Among them, Na success is the number of UEs that successfully access, Na request The number of UEs requesting access.

[0129] In another implementation, taking into account that it is difficult to accurately count the number of UEs requesting access in actual communication scenarios due to some reasons, for example, the first access request is unsuccessful and re-access may be possible, or the access request initiated by the UE conflicts with other messages and the RAN device does not receive it, etc., then the number of UEs requesting access may be inaccurate or difficult to count. Therefore, the RAN device (the first RAN device or the second RAN device) can obtain the number of UEs requesting access by obtaining the total number of UEs within its own coverage area and the first activation factor. The first activation factor represents the probability that the UE initiates the first service. For example, the first activation factor is a call activation factor, which is used to represent the proportion of UEs that are talking at the same time or time period, or the probability that the UE initiates a call at the same time or time period. In a possible implementation, the number of UEs requesting access can be calculated as follows: Na request =Na total *β

[0130] Among them, Na total is the total number of UEs within the coverage of the RAN device itself, and β is the call activation factor.

[0131] Then, the access success rate can be calculated as follows:

[0132] Then, when the second RAN device covers the first cell, the second RAN device can calculate the handover success rate and access success rate of the first cell. When the first cell is handovered and covered by the first RAN device, the second RAN device can transmit the handover success rate and access success rate to the first RAN device, or transmit the handover success rate and access success rate to the first RAN device via the core network device, for use in subsequent resource management strategies. When the first RAN device covers the first cell, it can also calculate the handover success rate and access success rate of the first cell for use in subsequent resource management strategies.

[0133] Step 302: The first RAN device determines a first threshold of first resources based on first information, where the first resources include resources related to a first service for the UE when the UE is covered by the first RAN device. The first threshold is used to indicate an upper limit on the amount of the first resources in the first cell.

[0134] In one embodiment, the first resource is a resource used by the UE to continue executing a first service-related process while covered by the first RAN device, i.e., a handover resource. That is, before continuing the first service-related process under the coverage of the first RAN device, the UE is executing the first service-related process under the coverage of the second RAN device. When the RAN device of the first cell switches from the second RAN device to the first RAN device, the UE's first service has not yet terminated, and the UE needs to continue executing the first service-related process under the coverage of the first RAN device. The first resource is the resource used by the UE to continue executing the first service-related process under the coverage of the first RAN device. The threshold of the first resource indicates the upper limit of the number of handover resources within the first cell. In this case, the first resource can be understood as a resource configured for use in the UE handover process, a resource reserved for use in the UE handover, or a resource used after the UE handover. The resource is only used for UE handover. The threshold of the first resource can also be referred to as a reserved resource threshold. If the resource is a channel resource, the threshold of the first resource can also be referred to as a reserved channel resource threshold or a reserved channel threshold.

[0135] In another embodiment, the first resource is a resource used by the UE to execute a new process related to the first service when covered by the first RAN device. That is, the UE initiates a new session request for the first service to the first RAN device, and the first resource is allocated to the UE based on the new session request and is used to establish a new session for the first service between the UE and the first RAN device. Alternatively, the first resource is used to execute the first service after the session is established. The process of executing the new process related to the first service can be called access, and thus the first resource can also be called an access resource. The threshold of the first resource is used to indicate the upper limit of the number of access resources in the first cell. In this case, the first resource can be understood as a resource configured for UE access or a resource reserved for UE access, and the resource is only for UE access.

[0136] In the embodiment of the present application, the resources related to the first service when under the coverage of the RAN device may include one or more of channel resources or device resources. Channel resources refer to air interface resources. Since the wireless interface in a satellite communication system typically uses a combination of frequency division multiple access (FDMA) and time division multiple access (TDMA) technologies, channel resources can generally be understood as time-frequency resources. Device resources represent the capabilities of the RAN device and include one or more of the storage resources or computing resources of the RAN device.

[0137] For example, taking the first resource as a handover channel resource, in a satellite communication system, when a satellite operates in staring mode, the satellite's illuminated cell range is fixed. The first resource threshold represents the upper limit of the number of channel resources allowed to be reserved by the satellite. These reserved channel resources are only used for UE handover. As shown in Figure 4 , the satellite's channel resources are divided into access channel resources and handover channel resources. Channel resources 1 to K-1 are access channel resources, and channel resources K to M are handover channel resources. The upper limit of the number of handover channel resources is the reserved channel threshold α, which is the first resource threshold.

[0138] For example, in a satellite communication system, when a UE moves at high speed from a first cell covered by a current satellite to a second cell covered by a new satellite in staring mode, a handover on the UE side may occur. To ensure service continuity for the UE, the satellite communication system uses a reserved channel strategy to ensure that the UE's call is not interrupted when moving from the current satellite service area to the new satellite service area. Specifically, the satellite obtains information such as the UE's location, direction of movement, speed, and connection time, estimates the time when the UE will leave the current satellite service area and the satellite service area it will soon connect to, and then requests channel resources for the UE in the channel resources of the upcoming satellite service area via the intersatellite link. These reserved channel resources are only used for UE handover. When a new reserved channel request arrives, if the number of channel resources reserved by the satellite is less than the reserved channel threshold, the request is accepted; otherwise, the request is rejected. Alternatively, if the current satellite moves out of the first cell it currently covers, triggering a handover on the network side, the UE needs to switch to establish a connection with the new satellite. This reserved channel strategy can also be used to request channel resources.

[0139] The resource management policy of the embodiment of the present application takes first information as input, is configured to dynamically adjust the threshold of the first resource based on the first information, and outputs the adjusted first threshold. When determining the first threshold of the first resource based on the first information, the first RAN device may determine a first adjustment factor based on the first information. The first adjustment factor is used to adjust a second threshold, which is the original threshold of the first resource of the first cell. The first threshold is then determined based on the first adjustment factor and the second threshold. The adjustment factor may also be referred to as an adjustment amount, an adjustment value, or an adjustment parameter.

[0140] If the first information includes a first parameter and a second parameter, the first RAN device may determine a first adjustment factor based on a comparison result between the first parameter and the second parameter. If the comparison result indicates that the difference between the first parameter and the second parameter is greater than or equal to a first threshold, the first adjustment factor is zero. Alternatively, if the difference is less than the first threshold, the difference is determined to be the first adjustment factor.

[0141] Taking the first resource as a handover channel resource as an example, if the first information includes a first parameter and a second parameter, namely, a handover success rate and an access success rate, when the handover success rate p switch If the access success rate is too small, it means that the demand for reserved channels is large, but the channel resources allowed for reservation are small, so the threshold of the first resource should be increased. access If it is too small, it means that the number of reserved channel resources is too large, thereby occupying too many access channel resources, so the threshold of the first resource should be reduced.

[0142] The difference value is used to represent the degree of difference between the first parameter and the second parameter. For example, the difference value may be the difference between the first parameter and the second parameter. Alternatively, the difference value may be determined based on the first parameter and the second parameter, such as a weighted difference between the first parameter and the second parameter.

[0143] In one embodiment, the first threshold value can be set according to an abnormal situation. In a non-sudden situation, the difference between the first parameter and the second parameter is often not very large, while a sudden situation may cause the first parameter and / or the second parameter to change suddenly. In this case, adjusting the threshold is essentially useless. Therefore, a suitable first threshold value can be configured to avoid threshold adjustment in such sudden situations, that is, the first threshold value can be used to reduce the impact of sudden changes on threshold adjustment. When the parameter suddenly changes, the first adjustment factor is zero and no adjustment is made to reduce the inaccurate threshold setting caused by sudden situations. For example, if the first threshold value is 1, then when the difference between the first parameter and the second parameter is less than 1, the difference is determined to be the first adjustment factor. When the difference between the first parameter and the second parameter is greater than 1, the first adjustment factor is zero.

[0144] In one possible implementation, when the first RAN device determines the first threshold of the first resource based on the first capability parameter, it may also determine the first threshold of the first resource based on the first information and a first weight, where the first weight is a weight corresponding to the first wavelength, and the first wavelength is the wavelength where the first cell is located. The service area of ​​a satellite network is divided into multiple small geographic areas based on geographic location, each of which is referred to as a wavelength. A wavelength can be represented by different shapes. The first cell can correspond to one or more wavelengths.

[0145] Taking the first resource as a handover channel resource as an example, if the first information includes a first parameter and a second parameter, namely, a handover success rate and an access success rate, when the handover success rate p switch If the access success rate is too small, it means that the demand for reserved channels is large, but the channel resources allowed for reservation are small, so the threshold of the first resource should be increased. accessIf the value is too small, it indicates that the number of reserved channel resources is too large, thereby occupying too many access channel resources. Therefore, the threshold of the first resource should be reduced. Considering that the communication system may place different emphasis on the first parameter and the second parameter, that is, the requirements for the handover success rate and the access success rate are different, the two parameters should be weighted and compared. Therefore, different weights can be configured for the first parameter and the second parameter. For example, the first weight includes a first sub-weight corresponding to the first parameter and a second sub-weight corresponding to the second parameter.

[0146] As an example, the first adjustment factor can be calculated as follows: △ = A*p access -B*p switch

[0147] Among them, A is the second sub-weight, B is the first sub-weight, and △ is the first adjustment factor.

[0148] Furthermore, the first RAN device determines the first threshold according to the first adjustment factor and the second threshold.

[0149] In a possible implementation, the first threshold is: α = α + α * Δ

[0150] The formula indicates that the adjusted first threshold is the sum of the original second threshold and the product of the second threshold and the first adjustment factor.

[0151] For example, see FIG5 , which shows a flowchart of a resource management strategy.

[0152] Step 501: Input the second threshold α old , switching success rate p switch and access success rate p access .

[0153] Step 502: According to the handover success rate p switch and access success rate p access , determine the target value of the first adjustment factor △.

[0154] For example, the target value of the first adjustment factor △ is: △=A*p access -B*p switch

[0155] Step 503: Determine whether the absolute value of the target value is less than the first threshold value. If yes, go to step 504; if no, go to step 505.

[0156] Step 504: Determine the first threshold: α new =α old +α old *△.

[0157] Step 505: Determine the first threshold: α new =α old .

[0158] Step 506: Output the adjusted first threshold.

[0159] In the embodiment of the present application, the first RAN device may obtain the first weight corresponding to the first waveband through the following implementation methods:

[0160] In implementation mode 1, the core network device may send the parameter table to the first RAN device in advance. For example, the parameter table may be included in the second information, that is, when notifying the first RAN device of the handover, the parameter table is sent to the first RAN device.

[0161] For example, the parameter table may include a first weight corresponding to a first wave position, such as the aforementioned first sub-weight and second sub-weight.

[0162] For another example, the parameter table may include weights corresponding to multiple wavelets, and the multiple wavelets include the first wavelet. That is to say, the core network device can send the parameter table containing all parameters to the RAN device in advance, and the RAN device can subsequently use the corresponding parameters to perform the resource management process according to the wavelet number of its own service. The first RAN device can then obtain the corresponding first weight from the parameter table according to the wavelet number of the first wavelet. See Table 1, which is an example of a parameter table, wherein the parameter table contains values ​​corresponding to the second sub-weight A and the first sub-weight B corresponding to different wavelet identifiers (IDs).

[0163] Table 1

[0164] In implementation method 2, the core network device may send only the first weight of the first wavelength to the second RAN device. When a handover is performed, the second RAN device may send the first weight to the first RAN device. For example, the second RAN device may include the first weight in the third information and send it to the first RAN device.

[0165] In addition to the above two implementations, the first weight may also be carried in other information and sent to the first RAN device, which is not limited.

[0166] In one possible implementation, when a RAN device handover occurs due to a network-side issue, the original RAN device can transmit first information to the new RAN device. The first information includes one or more of the second threshold, the first parameter, or the second parameter of the first resource. The new RAN device can then determine whether the second threshold setting is reasonable based on the aforementioned resource management policy. If so, the second threshold will continue to be used, i.e., the new first threshold and the second threshold will have the same value. Otherwise, the second threshold can be adjusted based on the resource management policy, i.e., the new first threshold will be the sum of the second threshold and the adjustment amount. In this way, after a RAN device handover occurs, the new RAN device can obtain previous statistical data, thereby achieving higher accuracy in threshold setting, ensuring that resource allocation is more consistent with current resource needs, and improving resource utilization.

[0167] FIG6 shows a schematic flow chart of a communication method provided in an embodiment of the present application.

[0168] Step 601: The first RAN device sends fifth information to the UE. Correspondingly, the UE receives the fifth information.

[0169] The fifth information is used to configure first resources. The first resources include resources related to the first service for the UE when covered by the first RAN device. The quantity of the first resources is less than or equal to a first threshold. The first threshold is used to indicate an upper limit on the quantity of the first resources in the first cell. The first threshold is determined based on the first information. The process of determining the first threshold can be found in the description of the embodiment shown in Figure 3 or Figure 5 and is not further described here.

[0170] Taking the first resource as a handover channel resource as an example, when the UE performs a first service-related process under the coverage of the second RAN device, and switches from the second RAN device to establish a communication connection with the first RAN device, and needs to continue to perform the first service-related process under the coverage of the first RAN device, the first RAN device can configure the first resource for the UE for handover use.

[0171] The first RAN device may send the fifth information to the UE via the original RAN device of the UE (eg, the second RAN device).

[0172] For an introduction to the first resource and the first threshold, please refer to the description of the embodiment shown in FIG3 and will not be repeated here. FIG6 specifically uses the first RAN device as an example. However, in actual scenarios, this method is also applicable to other RAN devices covering the first cell, such as the second RAN device.

[0173] Below, the communication method provided by the embodiment of the present application is mainly introduced by taking the RAN device as a satellite and the core network device as an AMF as an example. See Figure 7, which is a flow chart of an inter-satellite handover process. Below, for the convenience of description, the first RAN device is the first S-gNB, the second RAN device is the second S-gNB, and the core network device is the AMF as an example. Among them, the satellites involved in the inter-satellite handover process can operate in a staring mode to increase the length of time the satellite provides services to the UE. When the RAN device is other removable devices or operates in other modes, the following handover process or its adaptive variants can also be used.

[0174] Step 701: The AMF determines that the first cell is covered by the first S-gNB.

[0175] In one embodiment, the AMF may record relevant information about each S-gNB to determine whether an S-gNB handover is required, the handover time, and the S-gNBs involved in the handover based on the relevant information about each S-gNB. The relevant information about each S-gNB may include one or more of the following: the cell currently covered by the S-gNB, the duration of the S-gNB's coverage of the cell, or the S-gNB's motion pattern information. For example, the motion pattern information may be described by satellite ephemeris.

[0176] For example, for the first cell, which is currently covered by the second S-gNB, the AMF determines, based on the duration that the second S-gNB covers the first cell or the movement pattern information of the second S-gNB, that the second S-gNB will not be able to cover the first cell, or that the coverage quality of the second S-gNB when continuing to cover the first cell is poor. In this case, the AMF determines to switch the S-gNB for the first cell and can determine the new S-gNB for the first cell, i.e., the first S-gNB.

[0177] In one embodiment, the second S-gNB may determine that it will no longer be able to cover the first cell, or that the coverage quality of the first cell is poor. The second S-gNB may then determine that an S-gNB handover is required for the first cell. The second S-gNB may send an indication to the AMF, indicating that an S-gNB handover is required for the first cell. After receiving the indication, the AMF may determine a new S-gNB for the first cell, namely, the first S-gNB. Alternatively, the indication may include the new S-gNB determined by the second S-gNB, and the AMF may determine the new S-gNB for the first cell based on the indication.

[0178] Step 702: The AMF sends second information to the first S-gNB. In response, the first S-gNB receives the second information.

[0179] The second information includes information indicating that the first S-gNB covers the first cell. This information can also be described as handover information. That is, the handover information indicates that the S-gNB covering the first cell is to be switched from the second S-gNB to the first S-gNB. The second information can be handover signaling, or the second information is included in handover signaling. The handover signaling can also be described as a handover message, a handover request, or the like.

[0180] The AMF may send second information to the first S-gNB via a control channel link. The second information may include the identifier of the first S-gNB, the identifier of the AMF, and the requested handover time. The second information may also be described as an S-gNB handover request or a satellite handover request, or the second information may be included in the S-gNB handover request or the satellite handover request. For example, the AMF may send the information to the first S-gNB via the NG interface.

[0181] In a possible implementation manner, the second information further includes first information of the first cell, and the first information includes one or more of the second threshold of the first resource, the first parameter, or the second parameter.

[0182] In a possible implementation, the second information further includes a first weight corresponding to a first wavelength, where the first wavelength is the wavelength where the first cell is located, wherein the first weight is used to adjust a first threshold of a first resource of the first cell.

[0183] For determining the first information, the AMF may adopt any of the following implementation methods:

[0184] In implementation method 1, the first information may be determined by the S-gNB, which then reports the determined first information to the AMF. For example, if the S-gNB is a satellite and the AMF is an AMF, the satellite may send the first information of the currently covered cell to the AMF in real time, which the AMF will record and store uniformly. When an inter-satellite handover is required, the AMF, while making a handover decision, determines resource management method parameters based on the collected information and sends them to the corresponding satellite. Specifically, the AMF may include the first information in the second information and send it to the satellite after the handover.

[0185] In implementation method 2, the S-gNB can report the original data used to calculate the first information to the AMF, and the first information can be determined by the AMF based on the original data.

[0186] In implementation method 3, when the AMF determines to perform handover of the S-gNB, it may obtain the first information from the currently covered S-gNB. For example, the AMF sends an information acquisition request to the S-gNB to obtain the first information returned by the S-gNB.

[0187] Step 703: The first S-GNB feeds back first response information to the AMF. Correspondingly, the AMF receives the first response information.

[0188] After receiving the second information, the first S-GNB may determine its own permitted switching time based on its current information, and include the permitted switching time in the first response information and return it to the AMF. For example, the first S-GNB may determine an appropriate switching time based on its own resources and service conditions.

[0189] After receiving the first response information, the AMF records the allowed switching time of the first S-GNB and prepares to switch the S-gNB of the first cell.

[0190] Step 704: The AMF sends first handover signaling to the first S-gNB. Accordingly, the first S-gNB receives the first handover signaling.

[0191] The first switching signaling includes the identifier of the original S-gNB, that is, the second S-gNB.

[0192] Step 705: The AMF sends a second handover signaling to the second S-gNB. Accordingly, the second S-gNB receives the second handover signaling.

[0193] The second handover signaling includes the identifier of the new S-gNB, namely the first S-gNB.

[0194] The second handover signaling may include fourth information, where the fourth information indicates that the first S-gNB covers the first cell. The second S-gNB determines, based on the fourth information, that the first S-gNB covers the first cell. Of course, the fourth information may also be carried in other messages or signaling, without limitation.

[0195] Step 706: After receiving the second handover signaling, the second S-gNB sends third information to the first S-gNB. Accordingly, the first S-gNB receives the third information.

[0196] The third information is used to configure the transmit beam and / or receive beam of the first cell. For example, the third information includes beam configuration information of the first cell, where the beam configuration information includes one or more of the position, power, frequency, or bandwidth of each beam.

[0197] In a possible implementation manner, the third information further includes first information of the first cell, where the first information includes one or more of the second threshold of the first resource, the first parameter, or the second parameter.

[0198] In a possible implementation, the third information further includes a first weight corresponding to a first wavelength, where the first wavelength is the wavelength where the first cell is located, wherein the first weight is used to adjust a first threshold of a first resource of the first cell.

[0199] For example, the second S-gNB may send third information to the first S-gNB via the Xn interface.

[0200] It should be noted that the method of including the first information through the second information in step 702 and the method of including the first information through the third information in step 706 can be implemented either one or both.

[0201] Step 707: After receiving the third information, the first S-gNB may record the beam configuration indicated by the third information, or determine the transmit beam and / or receive beam of the first cell based on the third information. Upon completion, the first S-gNB sends a second response message to the second S-gNB. The second response message notifies the second S-gNB that the configuration has been recorded or completed. In response, the second S-gNB receives the second response message.

[0202] Step 708: After receiving the second response information, the second S-gNB sends a synchronization request to the first S-gNB. In response, the first S-gNB receives the synchronization request. The synchronization request instructs the first S-gNB to synchronize with the UE in the first cell.

[0203] Step 709: The first S-gNB sends a third response message to the second S-gNB. In response, the second S-gNB receives the third response message. The third response message includes response information for the synchronization request.

[0204] In response to the synchronization request, the first S-gNB performs synchronization measurements with the UE, for example, including measuring time and frequency offset errors with the UE. The first S-gNB sends a third response message to the second S-gNB based on the measurement results, which include the first S-gNB's own synchronization data.

[0205] The synchronization between the S-gNB and the UE may include two processes: synchronization and access (here it refers to accessing the S-gNB, i.e. establishing a communication connection with the S-gNB). After the S-gNB and the UE are synchronized, they will determine whether the UE is accessed and send the information to the second S-gNB.

[0206] Step 710: The second S-gNB notifies the first S-gNB that the handover is complete.

[0207] Step 711: The second S-gNB notifies the UE that the handover is complete.

[0208] After the second S-gNB receives the third response information, if it is determined based on the third response information that the first S-gNB has completed synchronization with most UEs, it notifies the first S-gNB and UE of the switching information.

[0209] The first S-gNB uses the second S-gNB's beam configuration based on the first S-gNB and controls its antenna to illuminate the first cell, providing service to the first cell. The second S-gNB also records the relevant entries. The second S-gNB deletes the relevant entries and releases resources. For example, the second S-gNB deletes the beam configuration information and UE connection information. The UE deletes the relevant entries and updates the access satellite ID to the first S-gNB. The handover is now complete.

[0210] If a small number of UEs fail to synchronize, they adjust the time and frequency and resend synchronization information, for example, by re-initiating access. If synchronization is still not achieved after multiple retransmissions, the UE waits for several time slots before resending a capture request, which can also be replaced by an access request.

[0211] In this embodiment of the present application, the second information in step 702 may include the first information, or the third information in step 707 may include the first information. The first information includes one or more of the second threshold, the first parameter, or the second parameter of the first resource. The first S-gNB can then determine whether the second threshold setting is reasonable based on the first information and the aforementioned resource management policy. If reasonable, the second threshold is continued to be used, i.e., the new first threshold and the second threshold have the same value. Otherwise, the second threshold is adjusted based on the resource management policy, i.e., the new first threshold is the sum of the second threshold and the adjustment amount. During subsequent coverage, the first S-gNB can also calculate the first information within the first cell during its coverage period and dynamically adjust the threshold for the first resource based on the first information and the aforementioned resource management policy. This allows the threshold to be set based on actual resource demand, reducing resource waste caused by improperly set resource thresholds, improving resource utilization, and reducing service (or service handover) failures due to insufficient first resources, thereby improving communication service quality.

[0212] For example, the first resource is a handover channel resource, the threshold for the first resource is the reserved channel threshold, the first parameter is the handover success rate, and the second parameter is the access success rate. The first S-gNB can then calculate the access success rate, handover success rate, and reserved channel threshold for UEs in the current staring cell. When a new reserved channel request arrives, if the number of channel resources already reserved by the first S-gNB is less than the reserved channel threshold, the reservation request is accepted; otherwise, the request is rejected. A target parameter for adjusting the reserved channel threshold is calculated based on the access success rate and handover success rate, and the reserved channel threshold is adjusted accordingly. If the handover success rate is too low, it indicates a high demand for reserved channels and a low number of channels available for reservation. Therefore, the reserved channel threshold should be increased. If the access success rate is too low, it indicates an excessive number of reserved channel resources, resulting in excessive access channel resources being occupied. Therefore, the reserved channel threshold should be decreased. When an inter-satellite handover occurs, the original covering satellite can transmit the reserved channel threshold, handover success rate, and access success rate of the current covering cell to the new covering satellite. The new covering satellite then continues to implement the channel resource management strategy based on this information.

[0213] Figure 8 shows a schematic diagram of the structure of a communication device provided in an embodiment of the present application. The communication device 800 may be a circuit system of the RAN device (or S-gNB) described in the embodiment shown in Figures 3, 5 or 7, and is used to implement the method corresponding to the RAN device (or S-gNB) in the above method embodiment, for example, the RAN device is a first RAN device or a second RAN device. Alternatively, the communication device 800 may be a circuit system of the core network device (or AMF) described in the embodiment shown in Figures 3, 5 or 7, and is used to implement the method corresponding to the core network device (or AMF) in the above method embodiment. For example, a circuit system is a chip system.

[0214] The communication device 800 includes at least one processor 801. Processor 801 can be used for internal processing of the device to implement certain control processing functions. Optionally, processor 801 includes instructions. Optionally, processor 801 can store data. Optionally, different processors can be independent devices, located in different physical locations, or on different integrated circuits. Optionally, different processors can be integrated into one or more processors, for example, on one or more integrated circuits.

[0215] Optionally, the communication device 800 includes one or more memories 803 for storing instructions. Optionally, data may also be stored in the memories 803. The processor and memory may be provided separately or integrated together.

[0216] Optionally, the communication device 800 includes a communication line 802 and at least one communication interface 804. Since the memory 803, the communication line 802 and the communication interface 804 are all optional, they are indicated by dotted lines in FIG8 .

[0217] Optionally, the communication device 800 may further include a transceiver and / or an antenna. The transceiver may be used to send information to or receive information from other devices. The transceiver may be referred to as a transceiver, a transceiver circuit, an input / output interface, etc., and is used to implement the transceiver function of the communication device 800 through the antenna. Optionally, the transceiver includes a transmitter and a receiver. For example, the transmitter may be used to generate a radio frequency signal from a baseband signal, and the receiver may be used to convert the radio frequency signal into a baseband signal.

[0218] The processor 801 may include a general-purpose central processing unit (CPU), a microprocessor, an application specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present application.

[0219] Communication link 802 may include a pathway for transmitting information between the aforementioned components.

[0220] The communication interface 804 uses any transceiver or other device for communicating with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area network (WLAN), wired access network, etc.

[0221] The memory 803 may 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) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, an optical disc storage (including a compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory 803 may exist independently and be connected to the processor 801 via the communication line 802. Alternatively, the memory 803 may be integrated with the processor 801.

[0222] The memory 803 is used to store computer-executable instructions for executing the solution of the present application, and the execution is controlled by the processor 801. The processor 801 is used to execute the computer-executable instructions stored in the memory 803, thereby implementing the steps performed by the core network device (or AMF) or RAN device (or S-gNB) described in the embodiments shown in Figures 3, 5, or 7.

[0223] Optionally, the computer-executable instructions in the embodiments of the present application may also be referred to as application code, which is not specifically limited in the embodiments of the present application.

[0224] In a specific implementation, as an embodiment, the processor 801 may include one or more CPUs, such as CPU0 and CPU1 in FIG8 .

[0225] In a specific implementation, as an embodiment, the communication device 800 may include multiple processors, such as the processor 801 and the processor 805 in FIG8 . Each of these processors may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. The processor herein may refer to one or more devices, circuits, and / or processing cores for processing data (e.g., computer program instructions).

[0226] When the apparatus shown in FIG8 is a chip, such as a UE chip or a network device chip, the chip includes a processor 801 (and may also include a processor 805), a communication circuit 802, and a communication interface 804. Optionally, the chip may include a memory 803. Specifically, the communication interface 804 may be an input interface, a pin, or a circuit. The memory 803 may be a register, a cache, or the like. The processor 801 and the processor 805 may be a general-purpose CPU, a microprocessor, an ASIC, or one or more integrated circuits for controlling the execution of the program of the communication method of any of the above-described embodiments.

[0227] The embodiment of the present application can divide the functional modules of the device according to the above-mentioned method example. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above-mentioned integrated module can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. For example, in the case of dividing each functional module according to each function, Figure 9 is a schematic diagram of a device, and the device 900 can be the UE or network device involved in the above-mentioned various method embodiments, or a chip in the UE or a chip in the network device. The device 900 includes a processing unit 902 and a transceiver unit 901.

[0228] It should be understood that the device 900 can be used to implement the steps performed by the UE or network device in the communication method of the embodiment of the present application. The relevant features can refer to the embodiments shown in Figures 3, 5 or 7 above, and will not be repeated here.

[0229] Optionally, the functions / implementation processes of the transceiver unit 901 and the processing unit 902 in FIG9 can be implemented by the processor 801 in FIG8 calling computer-executable instructions stored in the memory 803. Alternatively, the functions / implementation processes of the processing unit 902 in FIG9 can be implemented by the processor 801 in FIG8 calling computer-executable instructions stored in the memory 803, and the functions / implementation processes of the transceiver unit 901 in FIG9 can be implemented by the communication interface 804 in FIG8.

[0230] Optionally, when the device 900 is a chip or circuit, the functions / implementation processes of the transceiver unit 901 may also be implemented via pins or circuits. Optionally, the transceiver unit 901 may include a transmitting unit and / or a receiving unit, where the transmitting unit is configured to implement the transmitting function and the receiving unit is configured to implement the receiving function. Alternatively, the transceiver unit 901 may be an integral module capable of implementing the transmitting function and / or the receiving function. Optionally, the transceiver unit 901 may be implemented via a transceiver.

[0231] The present application also provides a computer-readable storage medium storing a computer program or instructions. When the computer program or instructions are executed, the method performed by the core network device (or AMF) or RAN device (or S-gNB) in the aforementioned method embodiments is implemented. In this way, the functions described in the above embodiments can be implemented in the form of software functional units and sold or used as independent products. Based on this understanding, the technical solution of the present application, or the portion that contributes to or part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The storage medium includes various media that can store program code, such as a USB flash drive, a mobile hard drive, ROM, RAM, a magnetic disk, or an optical disk.

[0232] The present application also provides a computer program product, which includes: computer program code, which, when executed on a computer, enables the computer to execute the method performed by the core network device (or AMF) or the RAN device (or S-gNB) in any of the aforementioned method embodiments.

[0233] An embodiment of the present application also provides a processing device, including a processor and an interface; the processor is used to execute the method performed by the core network device (or AMF) or RAN device (or S-gNB) involved in any of the above method embodiments.

[0234] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When software is used for implementation, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state drive (SSD)).

[0235] The various illustrative logic units and circuits described in the embodiments of the present application can be implemented or operated by a general-purpose processor, a digital signal processor (DSP), an ASIC, a field-programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof. The general-purpose processor can be a microprocessor, and optionally, the general-purpose processor can also be any conventional processor, controller, microcontroller or state machine. The processor can also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other similar configuration.

[0236] The steps of the methods or algorithms described in the embodiments of the present application can be directly embedded in hardware, software units executed by a processor, or a combination of the two. The software unit can be stored in RAM, flash memory, ROM, erasable programmable read-only memory (EPROM), EEPROM, registers, hard disks, removable disks, CD-ROMs, or other storage media in any form known in the art. Exemplarily, the storage medium can be connected to the processor so that the processor can read information from the storage medium and write information to the storage medium. Alternatively, the storage medium can also be integrated into the processor. The processor and storage medium can be provided in an ASIC, which can be provided in a terminal device. Alternatively, the processor and storage medium can also be provided in different components in the terminal device.

[0237] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0238] The contents of the various embodiments of this application can refer to each other. If there is no special explanation and logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other. The technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships.

[0239] It is understood that in the embodiments of the present application, the UE and / or the network device may perform some or all of the steps in the embodiments of the present application. These steps or operations are merely examples. In the embodiments of the present application, other operations or variations of various operations may also be performed. In addition, the various steps may be performed in a different order than those presented in the embodiments of the present application, and it is possible that not all operations in the embodiments of the present application need to be performed.

Claims

1. A communication method, characterized in that, Applied to a first access network device, the method includes: Obtaining first information of a first cell covered, where the first information is used to characterize the success rate related to a first service when a terminal device is covered by the first access network device or a second access network device. Among them, before being covered by the first access network device, the first cell was covered by the second access network device, and the first access network device is located in a mobile device; Determining a first threshold of a first resource according to the first information, where the first resource includes resources related to the first service when the terminal device is covered by the first access network device, and the first threshold is used to indicate the upper limit of the quantity of the first resource in the first cell.

2. The method according to claim 1, wherein: Before and after establishing a communication connection with the first access network device, the terminal device is within the coverage range of the first cell; or, Before establishing a communication connection with the first access network device, the terminal device is within the coverage range of a second cell.

3. The method according to claim 1 or 2, characterized in that, Obtaining the first information of the first cell includes: Receiving the first information.

4. The method according to claim 3, wherein: The first information is included in second information, and the second information further includes information for indicating that the first access network device covers the first cell; or, The first information is included in third information, and the third information is further used to configure the transmit beam and / or receive beam of the first cell.

5. The method according to any one of claims 1 to 4, characterized in that The success rate related to the first service includes: the success rate of establishing a session for transmitting the first service, and / or, the success rate of executing the first service.

6. The method according to any one of claims 1 to 5, characterized in that The resources related to the first service include: resources for establishing a session for transmitting the first service, and / or, resources for executing the first service.

7. The method according to any one of claims 1 to 6, characterized in that The first information includes one or more of the following: A first parameter, used to characterize the success rate of continuing the first service when the terminal device is covered by the first access network device or the second access network device; A second parameter, used to characterize the success rate related to the newly established first service when the terminal device is covered by the first access network device or the second access network device.

8. The method according to claim 7, wherein The determining the first threshold of the first resource according to the first information includes: Determining a first adjustment factor according to the first information, where the first adjustment factor is used to adjust a second threshold, and the second threshold is the original threshold of the first resource in the first cell; Determining the first threshold according to the first adjustment factor and the second threshold.

9. The method according to claim 8, wherein The determining the first adjustment factor according to the first information includes: Determining the first adjustment factor according to the comparison result of the first parameter and the second parameter; where, If the comparison result indicates that the difference value between the first parameter and the second parameter is greater than or equal to a first threshold, the first adjustment factor is zero, or, If the comparison result indicates that the difference value between the first parameter and the second parameter is less than the first threshold, determining the difference value as the first adjustment factor.

10. The method according to any one of claims 1-9, characterized in that, Determining a first threshold for a first resource according to the first information includes: Determining the first threshold for the first resource according to the first information and a first weight, where the first weight is the weight corresponding to a first wave position, and the first wave position is the wave position where the first cell is located.

11. The method according to claim 10, wherein the first weight is included in second information, and the second information further includes information for indicating that the first access network device covers the first cell; or the first weight is included in third information, and the third information is further used to configure a transmission beam and / or a reception beam of the first cell.

12. A communication method, characterized in that, Applied to a first access network device, the method includes: Sending fifth information, where the fifth information is used to configure a first resource, the first resource includes resources related to a first service when a terminal device is covered by the first access network device, the number of the first resources is less than or equal to a first threshold, the first threshold is used to indicate an upper limit of the number of the first resources in the first cell, the first threshold is determined according to first information, before the first cell is covered by the first access network device, it is covered by a second access network device, and the first information is used to characterize a success rate of the terminal device related to the first service when covered by the first access network device or the second access network device.

13. The method according to claim 12, wherein Before and after the terminal device establishes a communication connection with the first access network device, it is within the coverage range of the first cell; or Before the terminal device establishes a communication connection with the first access network device, it is within the coverage range of a second cell.

14. The method according to claim 12 or 13, characterized in that, The method further includes: Receiving the first information.

15. The method according to claim 14, wherein the first information is included in second information, and the second information further includes information for indicating that the first access network device covers the first cell; or the first information is included in third information, and the third information is further used to configure a transmission beam and / or a reception beam of the first cell.

16. The method according to any one of claims 12 to 15, characterized in that The first information includes one or more of the following: A first parameter, which is used to characterize a success rate of the terminal device continuing the first service when covered by the first access network device or the second access network device; A second parameter, which is used to characterize a success rate of the terminal device related to the newly established first service when covered by the first access network device or the second access network device.

17. The method according to claim 16, wherein The method further includes: Determining a first adjustment factor according to the first information, where the first adjustment factor is used to adjust a second threshold, and the second threshold is an original threshold of a first resource of the first cell; Determining the first threshold according to the first adjustment factor and the second threshold.

18. The method according to claim 17, wherein Determining the first adjustment factor according to the first information includes: Determining the first adjustment factor according to a comparison result between the first parameter and the second parameter; where the comparison result indicates that a difference value between the first parameter and the second parameter is greater than or equal to a first threshold, and the first adjustment factor is zero, or The comparison result indicates that the difference value between the first parameter and the second parameter is less than the first threshold, and determine the difference value as the first adjustment factor.

19. The method according to any one of claims 12-18, characterized in that, The method further includes: Determine a first threshold of the first resource according to the first information and a first weight, where the first weight is the weight corresponding to a first wave position, and the first wave position is the wave position where the first cell is located.

20. The method according to claim 19, wherein The first weight is included in the second information, and the second information further includes information for indicating that the first access network device covers the first cell; or, The first weight is included in the third information, and the third information is further used to configure the transmission beam and / or reception beam of the first cell.

21. A communication method, characterized in that, Applied to a second access network device, the method includes: Determine first information of a first cell, where the second access network device covers the first cell, and the first information is used to characterize the success rate of a first service when the terminal device is covered by the second access network device, and the second access network device is located in a mobile device; Determine that a first access network device covers the first cell; Send third information to the first access network device, where the third information is used to configure the transmission beam and / or reception beam of the first cell, and the third information further includes the first information.

22. The method according to claim 21, wherein The determining that the first access network device covers the first cell includes: Receive fourth information, where the fourth information indicates that the first access network device covers the first cell; Determine that the first access network device covers the first cell according to the fourth information.

23. The method according to claim 21 or 22, characterized in that The first information includes one or more of the following: A first parameter, which is used to characterize the success rate of the terminal device continuing the first service when covered by the second access network device; A second parameter, which is used to characterize the success rate of the terminal device related to the newly established first service when covered by the second access network device.

24. The method according to claim 23, wherein The determining the first information of the first cell includes: Determine a first quantity according to the total quantity of the terminal devices in the first cell and a first activation factor, where the first activation factor characterizes the probability of the terminal device initiating the first service; Determine the second parameter according to the first quantity and a second quantity, where the second quantity characterizes the number of terminal devices for which the first service is successfully executed when the second access network device covers the first cell.

25. The method according to any one of claims 21 to 24, characterized in that The third information further includes a first weight corresponding to a first wave position, where the first wave position is the wave position where the first cell is located; wherein, The first weight is used to adjust a first threshold of a first resource of the first cell, where the first resource includes resources related to the first service when the terminal device is covered by the first access network device or the second access network device, and the first threshold is used to indicate the upper limit of the quantity of the first resource in the first cell.

26. A communication method, characterized in that, Applied to a core network device, the method includes: Determine that a first access network device covers a first cell, where the first cell is covered by a second access network device, and the first access network device and / or the second access network device are located in a mobile device; Send second information to the first access network device, where the second information includes information for indicating that the first access network device covers the first cell, and the second information further includes first information of the first cell, and the first information is used to characterize the success rate of the terminal device related to the first service when covered by the second access network device.

27. The method according to claim 26, wherein The first information includes one or more of the following: A first parameter, which is used to characterize the success rate of the terminal device in continuing the first service when covered by the second access network device; A second parameter, which is used to characterize the success rate of the terminal device related to the newly established first service when covered by the second access network device.

28. The method according to claim 26 or 27, wherein The second information further includes a first weight corresponding to a first wave position, where the first wave position is the wave position where the first cell is located; wherein, The first weight is used to adjust a first threshold of a first resource of the first cell, the first resource includes resources related to the first service when the terminal device is covered by the first access network device or the second access network device, and the first threshold is used to indicate an upper limit of the quantity of the first resource in the first cell.

29. A communication device, characterized in that, The communication device includes a processing unit and a transceiver unit, and the processing unit is coupled to the transceiver unit to execute the method according to any one of claims 1 to 11, or execute the method according to any one of claims 12 to 20, or execute the method according to any one of claims 21 to 25, or execute the method according to any one of claims 26 to 28.

30. A communication device, characterized in that, The communication device includes a processor and a memory, the memory is used to store a computer program, and the processor is used to execute the computer program stored on the memory, so that the communication device executes the method according to any one of claims 1 to 11, or so that the communication device executes the method according to any one of claims 12 to 20, or so that the communication device executes the method according to any one of claims 21 to 25, or so that the communication device executes the method according to any one of claims 26 to 28.

31. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store a computer program, and when the computer program runs on a computer, it causes the computer to execute the method according to any one of claims 1 to 11, or causes the computer to execute the method according to any one of claims 12 to 20, or causes the computer to execute the method according to any one of claims 21 to 25, or causes the computer to execute the method according to any one of claims 26 to 28.

32. A computer program product, characterized in that, The computer program product includes a computer program, and when the computer program runs on a computer, it causes the computer to execute the method according to any one of claims 1 to 11, or causes the computer to execute the method according to any one of claims 12 to 20, or causes the computer to execute the method according to any one of claims 21 to 25, or causes the computer to execute the method according to any one of claims 26 to 28.

33. A chip system, characterized in that, The chip system includes: A processor and an interface, the processor being configured to call and execute instructions from the interface, and when the processor executes the instructions, implementing the method according to any one of claims 1 to 11, or implementing the method according to any one of claims 12 to 20, or implementing the method according to any one of claims 21 to 25, or implementing the method according to any one of claims 26 to 28.

34. A communication system, characterized in that, The communication system includes an access network device and a core network device, wherein, The access network device is configured to execute the method according to any one of claims 1 to 11, 12 to 20 or 21 to 25; The core network device is configured to execute the method according to any one of claims 26 to 28.

35. A communication system, characterized in that, The communication system includes an access network device and a network device, wherein, The access network device is configured to execute the method according to any one of claims 1 to 11, 12 to 20 or 21 to 25; The core network device is configured to execute the method according to any one of claims 26 to 28.

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