Information processing method and related device

Abstract

The embodiment of the invention provides an information processing method and a related device, and the method comprises the steps that a first network device receives terminal information of at least one second network device, the terminal information comprises the number of terminals served by at least one second network device, position information of the terminals served by the at least one second network device and equivalent omnidirectional radiation power information; and determining the uplink total interference generated by the terminal served by the at least one second network device on the first network device according to the terminal information. According to the embodiment of the invention, the uplink total interference generated by the terminal served by other network equipment on the network equipment can be obtained, so that corresponding interference coordination can be executed based on the uplink total interference.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an information processing method and related devices. Background Art

[0002] With the development of communication technology, spectrum resources are rapidly occupied and gradually scarce. In order to improve the utilization rate of spectrum resources, attempts are made to adopt a co-construction and sharing mechanism for spectrum resources, that is, multiple network devices can share the spectrum of the same frequency band. However, although the co-construction and sharing of spectrum resources between network devices can improve resource utilization, it also brings various types of interference. For example, according to the signal direction, it can be divided into uplink interference and downlink interference; according to the interference scenario, it can be divided into interference between terrestrial networks, interference between terrestrial networks and non-terrestrial communication networks (non-terrestrial Network, NTN), and interference between non-terrestrial networks, etc. Therefore, how to solve interference is an urgent problem to be solved. Summary of the invention

[0003] The embodiments of the present application provide an information processing method and related apparatus, which can obtain the total uplink interference generated by terminals served by other network devices, thereby facilitating the execution of corresponding interference coordination based on the total uplink interference.

[0004] In the first aspect, the embodiment of the present application provides an information processing method, which can be applied to a first network device, or a chip or chip module in the first network device, or to a module or unit that can realize all or part of the functions of the first network device, etc., and is described below using the first network device as an example. In the method, the first network device receives terminal information of at least one second network device, and the terminal information includes the number of terminals served by at least one second network device, the location information of at least one terminal served by the second network device, and the equivalent isotropic radiated power information; based on the terminal information, the total uplink interference generated by the terminal served by at least one second network device to the first network device is determined.

[0005] It can be seen that in this information processing method, the first network device can determine the total uplink interference generated by the terminals served by one or more second network devices based on the terminal information of one or more second network devices, thereby facilitating the execution of corresponding interference coordination based on the total uplink interference.

[0006] Optionally, there is an overlap between the geographical area, coverage or visual range served by the first network device and the geographical area, coverage or visual range served by at least one second network device. The total uplink interference caused by the terminal served by at least one second network device to the first network device is the total uplink interference caused by the uplink transmission of the terminal served by at least one second network device to the uplink reception of the first network device.

[0007] Optionally, the total uplink interference is the total uplink interference caused by the uplink transmission of at least one terminal served by the second network device to the uplink reception of the first network device, such as the total uplink interference power or the interference-to-noise ratio. Optionally, the terminal information of the second network device, such as the number of terminals served by the second network device, the location information of the terminals, and the equivalent isotropically radiated power information, is received by the first network device from the second network device.

[0008] In an optional implementation, the terminal information also includes frequency domain configuration information of uplink transmission of at least one second network device. The first network device determines the total uplink interference caused by the terminal served by at least one second network device to the first network device based on the terminal information, including: the first network device determines the antenna reception gain based on the location information of the terminal served by the second network device; and determines the uplink interference caused by the terminal served by the second network device to the first network device based on the frequency domain configuration information of the uplink transmission of the second network device, the equivalent isotropic radiated power information of the terminal served by the second network device, and the antenna reception gain; and further, based on the uplink interference caused by the terminal served by at least one second network device to the first network device respectively, determines the total uplink interference caused by the terminal served by the second network device to the first network device.

[0009] In an optional implementation, the information transmission method further includes: the first network device determines whether to perform interference coordination based on the total uplink interference generated by at least one terminal served by the second network device to the first network device. It can be seen that this implementation can determine whether interference needs to be resolved based on the total uplink interference.

[0010] In an optional implementation, if the first network device determines to perform the interference coordination, the method further includes: the first network device determines a first area based on the uplink interference generated by the terminals served by at least one second network device to the first network device, and the interference intensity of the uplink interference generated by the terminals served by the second network device to the first network device in the first area is greater than a preset value; the first network device determines the beam weight of the receiving beam, and the main lobe of the receiving beam points to other areas except the first area, or the null direction of the receiving beam points to the first area. The first area is the area where the second network device is located, where the interference intensity of the uplink interference generated by the served terminals to the first network device is greater than a preset value. It can be seen that this implementation can reduce the uplink interference generated by the terminals served by at least one network device to the first network device.

[0011] In another optional implementation, if it is determined to perform interference coordination, the method further includes: the first network device configures a frequency band for uplink transmission, wherein the frequency band for uplink transmission configured by the first network device does not overlap with the frequency band for uplink transmission of at least one second network device. It can be seen that this implementation can solve the uplink interference caused by the terminal served by at least one network device to the first network device.

[0012] In an optional implementation, the first network device is a satellite, and at least one second network device is a network device within the coverage or visible range of the satellite. It can be seen that in this implementation, the satellite can determine the total uplink interference caused to the satellite by the terminal served by at least one network device within its coverage or visible range. Accordingly, in this implementation, the location information of the second network device is used as the location information of the terminal served by the second network device.

[0013] In another optional implementation, the first network device is a low earth orbit satellite, and at least one second network device is a geostationary orbit satellite whose service geographical area is within the coverage or visible range of the low earth orbit satellite. It can be seen that in this implementation, the low earth orbit satellite can determine the total uplink interference caused to the low earth orbit satellite by the terminals served by the geostationary orbit satellite whose service geographical area is within its own coverage or visible range. Correspondingly, the location information of the terminals served by the second network device is the location information of the geographical area served by the geostationary orbit satellite, and the terminals served by the second network device are the terminals served by the geostationary orbit satellite in the geographical area. Optionally, the location information of the geographical area served by the geostationary orbit satellite may be the wave position scheduling information of the geostationary orbit satellite. Optionally, the frequency domain configuration information of the uplink transmission configured by the second network device may be the frequency domain configuration information associated with the wave position scheduling information.

[0014] Optionally, the equivalent isotropic radiated power information includes an average antenna gain of a terminal served by the second network device; the equivalent isotropic radiated power information also includes an average transmit power or transmit power statistics of the terminal served by the second network device. In this way, the first network device can determine the uplink interference caused by the terminal served by the second network device to the first network device based on the equivalent isotropic radiated power information.

[0015] In the second aspect, the embodiment of the present application also provides an information processing method, which can be applied to a second network device, a chip in the second network device, or a module or unit that can realize all or part of the functions of the second network device, etc. The second network device is used as an example for description. In the method, the second network device sends terminal information, and the terminal information includes the number of terminals served by the second network device, the location information of the served terminals, and the equivalent isotropic radiated power information; the terminal information is used to determine the uplink interference caused by the terminals served by the second network device to the first network device.

[0016] It can be seen that in this information processing method, the second network device can send the service terminal information to the first network device, so that the first network device can determine the uplink interference generated by the terminal served by the second network device, thereby facilitating the execution of corresponding interference coordination based on the uplink interference.

[0017] Optionally, there is an overlap between the geographical area, coverage area or visible range served by the first network device and the geographical area, coverage area or visible range served by at least one second network device.

[0018] Optionally, the uplink interference is the uplink interference caused by the uplink transmission of the terminal served by the second network device on the uplink reception of the first network device, such as uplink interference power or interference-to-noise ratio.

[0019] In an optional implementation, the terminal information also includes frequency domain configuration information of uplink transmission of the second network device, thereby facilitating the first network device to determine the uplink interference caused by the terminal served by the second network device to the first network device based on the frequency domain configuration information.

[0020] In an optional implementation, the first network device is a satellite, and the second network device is a network device within the coverage or visible range of the satellite; the location information of the second network device serves as the location information of the terminal served by the second network device.

[0021] In another optional embodiment, the first network device is a low-Earth orbit satellite, and the second network device is a geostationary orbit satellite whose service geographical area is within the coverage or visible range of the low-Earth orbit satellite; the location information of the terminal served by the second network device is the location information of the geographical area, and the terminal served by the second network device is the terminal served by the geostationary orbit satellite in the geographical area.

[0022] Optionally, before the geostationary orbit satellite sends the terminal information, the information transmission method also includes: the geostationary orbit satellite receives ephemeris information from the low earth orbit satellite, and based on the ephemeris information, determines the equivalent isotropic radiated power information of the terminal served by the geostationary orbit satellite in the geographical area.

[0023] Optionally, in the information transmission method, the equivalent isotropic radiated power information sent by the second network device includes the average antenna gain of the terminal served by the second network device, and the equivalent isotropic radiated power information also includes the average transmit power of the terminal served by the second network device or statistical information of the transmit power.

[0024] In a third aspect, an embodiment of the present application further provides a communication device. The communication device is a first network device, or a device of the first network device, or a device that can be used in conjunction with the first network device. In a possible implementation, the communication device includes a functional module, and the functional module is a hardware circuit, or software, or a combination of a hardware circuit and software.

[0025] In one possible implementation, the communication device includes one or more functional units, such as a communication unit and a processing unit, wherein the communication unit is used to receive terminal information of at least one second network device, the terminal information including the number of terminals served by at least one second network device, location information of the served terminals, and equivalent isotropic radiated power information; and the processing unit is used to determine the total uplink interference caused by the terminals served by at least one second network device to the first network device based on the terminal information.

[0026] It can be seen that the communication device can determine the total uplink interference generated by the terminals served by one or more second network devices based on the terminal information of one or more second network devices, thereby facilitating the execution of corresponding interference coordination based on the total uplink interference.

[0027] Optionally, there is an overlap between the geographical area, coverage area or visible range served by the first network device and the geographical area, coverage area or visible range served by at least one second network device.

[0028] Optionally, the total uplink interference is the total uplink interference caused by the uplink transmission of at least one terminal served by the second network device to the uplink reception of the first network device, such as the total uplink interference power or the interference-to-noise ratio. Optionally, the terminal information of the second network device, such as the number of terminals served by the second network device, the location information of the terminals, and the equivalent isotropically radiated power information, is received by the first network device from the second network device.

[0029] In an optional implementation, the terminal information also includes frequency domain configuration information of uplink transmission of at least one second network device. The processing unit determines the total uplink interference caused by the terminal served by at least one second network device to the first network device based on the terminal information. Specifically, the processing unit determines the antenna reception gain based on the location information of the terminal served by the second network device; and determines the uplink interference caused by the terminal served by the second network device to the first network device based on the frequency domain configuration information of the uplink transmission of the second network device, the equivalent isotropic radiated power information of the terminal served by the second network device, and the antenna reception gain; and further, based on the uplink interference caused by the terminal served by at least one second network device to the first network device respectively, determines the total uplink interference caused by the terminal served by the second network device to the first network device.

[0030] In an optional implementation, the processing unit is further configured to determine whether to perform interference coordination based on the total uplink interference generated by at least one terminal served by the second network device to the first network device. It can be seen that this implementation can determine whether interference needs to be resolved based on the total uplink interference.

[0031] In an optional implementation, if the communication device determines to perform the interference coordination, the processing unit is also used to determine a first area based on the uplink interference generated by the terminals served by at least one second network device to the first network device, and the interference intensity of the uplink interference generated by the terminals served by the second network device to the first network device in the first area is greater than a preset value; the processing unit is also used to determine the beam weight of the receiving beam, the main lobe of the receiving beam points to other areas except the first area, or the null direction of the receiving beam points to the first area. The first area is the area where the second network device is located, where the interference intensity of the uplink interference generated by the served terminals to the first network device is greater than a preset value. It can be seen that this implementation can reduce the uplink interference generated by the terminals served by at least one network device to the first network device.

[0032] In another optional implementation, if it is determined to perform interference coordination, the processing unit is further configured to configure a frequency band for uplink transmission, wherein the frequency band for uplink transmission configured by the communication device does not overlap with the frequency band for uplink transmission of at least one second network device. It can be seen that this implementation can solve the uplink interference caused by the terminal served by at least one network device to the first network device.

[0033] In an optional implementation, the first network device is a satellite, or a chip in a satellite, or a module or unit capable of implementing all or part of the functions of a satellite, and at least one second network device is a network device within the coverage or visible range of the satellite. It can be seen that in this implementation, the first network device can determine the total uplink interference to the first network device caused by the terminal served by at least one network device within the coverage or visible range of the satellite. Accordingly, in this implementation, the location information of the second network device is used as the location information of the terminal served by the second network device.

[0034] In another optional implementation, the first network device is a low earth orbit satellite, or a chip in a low earth orbit satellite, or a module or unit capable of implementing all or part of the functions of a low earth orbit satellite, and at least one second network device is a geostationary orbit satellite whose service geographical area is within the coverage or visible range of the low earth orbit satellite. It can be seen that in this implementation, the low earth orbit satellite can determine the total uplink interference caused to the low earth orbit satellite by the terminals served by the geostationary orbit satellite whose service geographical area is within its own coverage or visible range.

[0035] Correspondingly, the location information of the terminal served by the second network device is the location information of the geographical area served by the geostationary orbit satellite, and the terminal served by the second network device is the terminal served by the geostationary orbit satellite in the geographical area. Optionally, the location information of the geographical area served by the geostationary orbit satellite may be the wave position scheduling information of the geostationary orbit satellite. Optionally, the frequency domain configuration information of the uplink transmission configured by the second network device may be the frequency domain configuration information associated with the wave position scheduling information.

[0036] Optionally, the equivalent isotropic radiated power information includes an average antenna gain of a terminal served by the second network device; the equivalent isotropic radiated power information also includes an average transmit power of the terminal served by the second network device or statistical information of the transmit power. In this way, the communication device can determine the uplink interference caused by the terminal served by the second network device to the first network device based on the equivalent isotropic radiated power information.

[0037] In a fourth aspect, an embodiment of the present application further provides a communication device. The communication device is a second network device, or a device of the second network device, or a device that can be used in combination with the second network device. In a possible implementation, the communication device includes a functional module, which is a hardware circuit, or software, or a combination of a hardware circuit and software.

[0038] In one possible implementation, the communication device includes one or more functional units, such as a communication unit, wherein the communication unit is used to send terminal information, the terminal information includes the number of terminals served by the second network device, location information of the served terminals, and equivalent isotropic radiated power information; the terminal information is used to determine the uplink interference generated by the terminals served by the second network device to the first network device. Optionally, the communication device includes a processing unit, and the processing unit is used to determine the terminal information.

[0039] It can be seen that the communication device can send the terminal information served by the second network device to the first network device, so that the first network device can determine the uplink interference caused by the terminal served by the second network device to the first network device, thereby facilitating the execution of corresponding interference coordination based on the uplink interference.

[0040] Optionally, there is an overlap between the geographical area, coverage area or visible range served by the second network device and the geographical area, coverage area or visible range served by the first network device.

[0041] Optionally, the uplink interference is the uplink interference caused by the uplink transmission of the terminal served by the second network device on the uplink reception of the first network device, such as uplink interference power or interference-to-noise ratio.

[0042] In an optional implementation, the terminal information also includes frequency domain configuration information of uplink transmission of the second network device, thereby facilitating the first network device to determine the uplink interference caused by the terminal served by the second network device to the first network device based on the frequency domain configuration information.

[0043] In an optional implementation, the first network device is a satellite, and the second network device is a network device within the coverage or visible range of the satellite; the location information of the second network device serves as the location information of the terminal served by the second network device.

[0044] In another optional embodiment, the first network device is a low-Earth orbit satellite, and the second network device is a geostationary orbit satellite that serves a geographical area within the coverage or visible range of the low-Earth orbit satellite; the location information of the terminal served by the second network device is the location information of the geographical area, and the terminal served by the second network device is the terminal served by the geostationary orbit satellite in the geographical area.

[0045] Optionally, before sending the terminal information, the communication unit is also used to receive ephemeris information from a low earth orbit satellite, and the processing unit is further used to determine the equivalent isotropic radiated power information of the terminal served by the geostationary orbit satellite in the geographical area based on the ephemeris information.

[0046] Optionally, the equivalent isotropic radiated power information includes an average antenna gain of a terminal served by the second network device, and the equivalent isotropic radiated power information also includes an average transmit power or transmit power statistics information of the terminal served by the second network device.

[0047] For the third and fourth aspects, as an example, the processing unit can be the processing unit or can be embodied as a processing circuit or a logic circuit; the transceiver unit can be an input / output interface, interface circuit, output circuit, input circuit, pin or related circuit on the chip or chip system.

[0048] During the implementation process, the processor can be used to perform, for example, but not limited to, baseband related processing, and the transceiver or communication interface can be used to perform, for example, but not limited to, radio frequency transceiver. The above-mentioned devices can be arranged on independent chips, or at least partially or completely on the same chip. For example, the processor can be further divided into an analog baseband processor and a digital baseband processor. Among them, the analog baseband processor can be integrated with the transceiver (or communication interface) on the same chip, and the digital baseband processor can be arranged on an independent chip. With the continuous development of integrated circuit technology, more and more devices can be integrated on the same chip. For example, a digital baseband processor can be integrated with a variety of application processors (such as but not limited to a graphics processor, a multimedia processor, etc.) on the same chip. Such a chip can be called a system on a chip (System on a Chip, SoC). Whether each device is independently arranged on different chips or integrated on one or more chips often depends on the needs of product design. The embodiment of the present application does not limit the implementation form of the above-mentioned devices.

[0049] In a fifth aspect, an embodiment of the present application further provides a processor for executing the method described in any possible implementation of the first aspect or the second aspect, or the first aspect or the second aspect. In the process of executing these methods, the process of sending the above-mentioned signal and receiving the above-mentioned signal in the above-mentioned method can be understood as the process of outputting the above-mentioned signal by the processor, and the process of the above-mentioned signal input by the processor. When outputting the above-mentioned signal, the processor outputs the above-mentioned signal to the transceiver so that it is transmitted by the transceiver (or communication interface). After the above-mentioned signal is output by the processor, it may also need to perform other processing before it reaches the transceiver (or communication interface). Similarly, when the processor receives the above-mentioned signal input, the transceiver (or communication interface) receives the above-mentioned signal and inputs it into the processor. Further, after the transceiver (or communication interface) receives the above-mentioned signal, the above-mentioned signal may need to perform other processing before it enters the processor.

[0050] For the sending and receiving operations involved in the processor, unless otherwise specified, or unless they conflict with their actual function or internal logic in the relevant description, they can be more generally understood as processor output, reception, input and other operations, rather than sending and receiving operations performed directly by the RF circuit and antenna.

[0051] In the implementation process, the processor may be a processor specifically used to execute these methods, or a processor that executes computer instructions in a memory to execute these methods, such as a general-purpose processor. The memory may be a non-transitory memory, such as a read-only memory (ROM), which may be integrated with the processor on the same chip or may be separately arranged on different chips. The embodiment of the present application does not limit the type of memory and the arrangement of the memory and the processor.

[0052] In a sixth aspect, an embodiment of the present application further provides a communication device, comprising: a processor, configured to call a computer program stored in a memory so that the communication device implements the method described in the first aspect or the second aspect, or any possible implementation of the first aspect or the second aspect. Optionally, the communication device further comprises a memory, and the processor is coupled to the memory.

[0053] In a seventh aspect, the present application further provides a communication system, the system comprising at least one first network device that performs the method described in the first aspect or any optional implementation of the first aspect and at least one second network device that performs the method described in the second aspect or any possible implementation of the second aspect. In another possible design, the system may also include other devices that interact with the first network device and / or the second network device in the solution provided in the embodiment of the present application.

[0054] In an eighth aspect, the present application provides a computer-readable storage medium storing a computer program. When the computer program is executed, the method described in any one of the first to second aspects or any optional implementation of any one of the aspects is executed.

[0055] In a ninth aspect, the present application further provides a computer program product comprising instructions, the computer program product comprising: a computer program code, when the computer program code is run, the method described in any one of the first to second aspects or any optional implementation of any one of the aspects is executed.

[0056] In the tenth aspect, the present application provides a chip system, which includes a processor and an interface, wherein the interface is used to obtain a program or instruction, and the processor is used to call the program or instruction to implement the method described in any aspect of the first aspect to the second aspect or any optional implementation method of any aspect. In one possible design, the chip system also includes a memory, which is used to store program instructions and data necessary for the terminal. The chip system can be composed of a chip, or it can include a chip and other discrete devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 It is a schematic diagram of an NTN scenario based on transparent transmission load;

[0058] Figure 2 It is a schematic diagram of a NTN scenario based on regenerative load;

[0059] Figure 3 It is a structural diagram of a communication system;

[0060] Figure 4 This is a schematic diagram of a low-orbit satellite interfering with a ground terminal;

[0061] Figure 5 This is another schematic diagram of a ground terminal interfering with a low-orbit satellite;

[0062] Figure 6 It is a schematic diagram of the satellite-earth interference scenario;

[0063] Figure 7 It is a schematic diagram of interference scenario between a low-orbit satellite and a high-orbit satellite;

[0064] Figure 8 It is a flowchart of an information processing method provided by an embodiment of the present application;

[0065] Fig. 9 It is a schematic diagram of an embodiment of the present application in which a frequency band of an uplink transmission of a first network device does not overlap with a frequency band of an uplink transmission of a second network device;

[0066] Fig.10 is a schematic diagram of another information processing method provided in an embodiment of the present application;

[0067] Fig.11 This is a correspondence between the percentage of the worst month and I / N (dB) provided in an embodiment of the present application;

[0068] Fig.12 is a CDF curve of an interference threshold I / N provided in an embodiment of the present application;

[0069] Fig.13 is a schematic diagram of a beam weight provided in an embodiment of the present application;

[0070] Fig.14 is a schematic diagram of another information processing method provided in an embodiment of the present application;

[0071] Fig.15 is another schematic diagram of beam weights provided in an embodiment of the present application;

[0072] Fig.16 It is a structural schematic diagram of a communication device provided by the present application;

[0073] Fig.17 It is a structural diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0074] An embodiment of the present application provides an information processing method and a related device, in which a first network device receives terminal information of at least one second network device, the terminal information including the number of terminals served by the at least one second network device, location information of the terminals served by the at least one second network device, and equivalent isotropic radiated power information; the first network device determines, based on the terminal information, the total uplink interference generated by the terminals served by the at least one second network device to the first network device, thereby facilitating the first network device to perform corresponding interference coordination based on the total uplink interference.

[0075] Optionally, the embodiments of the present application can be applied to communication systems of various radio access technologies (RAT), for example, narrowband Internet of things systems (NB-IoT), long term evolution (LTE) communication systems, 5G (or new radio (NR)) communication systems, or transition systems between LTE communication systems and 5G communication systems, which transition systems may also be called 4.5G communication systems, and of course, future communication systems, such as sixth generation (6G) or even seventh generation (7G) systems. The embodiments of the present application can also be applied to non-terrestrial networks (NTN), vehicle to everything (V2X), long term evolution-vehicle (LTE-V), vehicle to vehicle (V2V), machine type communications (MTC), Internet of Things (IoT), long term evolution-machine to machine (LTE-machine to machine, LTE-M), machine to machine (machine to machine, M2M), or future mobile communication systems.

[0076] Optionally, the NTN system may include a satellite system. According to the satellite altitude, that is, the satellite orbit altitude, the satellite system is divided into highly elliptical orbiting (HEO) satellites, geosynchronous orbit (GEO) satellites, medium earth orbit (MEO) satellites and low-earth orbit (LEO) satellites. In addition, the NTN system may also include high altitude platform station (HAPS) communication systems, etc. Compared with communication infrastructure such as ground cellular networks and submarine optical fiber cables, NTN has significant cost advantages. Modern small satellites have low R&D and manufacturing costs, and software-defined technology can further extend the service life of satellites in orbit. A large number of satellites are deployed in low-Earth orbits, and the round-trip transmission delay of data between satellites and ground terminals is greatly reduced, reaching a low delay of tens of milliseconds. The use of technologies such as high frequency bands, multi-spot beams and frequency reuse has significantly improved the communication capabilities of satellites, reduced unit bandwidth costs, and can meet the needs of high information rate services. NTN networks can be used in scenarios such as global coverage (such as remote areas, ocean-going ships, etc.), emergency relief (such as disaster monitoring, emergency communications), the Internet of Everything, and high-speed mobility (such as high-speed rail and airplanes).

[0077] Optionally, the network device is an access network (AN) device, such as a base station, that a terminal accesses to a mobile communication system in a wireless manner. The network device may also refer to a device that communicates with a terminal device at an air interface. The network device may include an evolved NodeB (eNodeB or eNB) transmission reception point (TRP) in a long term evolution (LTE) system or long term evolution-advanced (LTE-A), a next generation NodeB (gNB) in a fifth generation (5G) mobile communication system, an access network device in an open radio access network (O-RAN or open RAN), a next generation base station in a sixth generation (6G) mobile communication system, or a base station in a future mobile communication system, or an access node in a wireless fidelity (WiFi) system, etc.; or, the network device may be a relay station, a vehicle-mounted device, a future evolved public land mobile network (PLMN) device, a device in a device-to-device (D2D) network, a device in an M2M network, a device in an IoT network, or a network device in a public land mobile network (PLMN), etc.

[0078] Optionally, the network device takes a base station as an example. The base station can communicate with the terminal device or communicate with the terminal device through a relay station. The terminal can communicate with multiple base stations in different access technologies. The network device can be a module or unit that completes some functions of the base station, for example, it can be a centralized unit (CU), a distributed unit (DU), a centralized unit control plane (CU control plane, CU-CP) module, or a centralized unit user plane (CU user plane, CU-UP) module. Multiple DUs can be centrally controlled by one CU. CU and DU can be divided according to the protocol layer functions of the wireless network they possess, for example, the functions of the packet data convergence protocol (PDCP) layer and the above protocol layers are set in the CU, and the protocol layers below the PDCP, such as the radio link control (RLC) layer and the medium access control (MAC) layer, are set in the DU. It should be noted that this division of the protocol layer is only an example, and it can also be divided at other protocol layers. The radio frequency device can be remote and not placed in the DU, or it can be integrated in the DU, or partly remote and partly integrated in the DU, and the embodiments of the present application do not impose any restrictions. In addition, in some embodiments, the control plane (control plan, CP) and user plane (user plan, UP) of the CU can also be separated and implemented by different entities, namely the control plane CU entity (CU-CP entity) and the user plane CU entity (CU-UP entity). In this network architecture, the signaling generated by the CU can be sent to the terminal device through the DU, or the signaling generated by the terminal device can be sent to the CU through the DU. The DU can directly encapsulate the signaling through the protocol layer and transparently transmit it to the terminal device or CU without parsing it. In this network architecture, the CU is divided into a network device on the radio access network (radio access network, RAN) side. In addition, the CU can also be divided as a network device on the core network (core network, CN) side, and the present application does not impose any restrictions on this. Optionally, the access network device can be a server, etc. For example, the network device in the vehicle V2X technology can be a road side unit (road side unit, RSU). Optionally, the network device may also be various types of devices constituting an access node, such as an active antenna unit (AAU), a baseband unit (BBU), and the like.

[0079] Optionally, the network device is a network device in the NTN system, which can be deployed on a high-altitude platform or satellite, such as a satellite or a satellite base station. The scenarios in which the NTN system provides access to the terminal may include transparent payload and regenerative payload. Transparent payload is a payload that changes the frequency carrier of the uplink RF signal and filters and amplifies it before downlink transmission. This payload only has a RF processing unit and no baseband demodulation, decoding and other processing. Therefore, the signal waveform is unchanged and is repeated. Regenerative payload is a payload that transforms and amplifies the uplink RF signal before downlink transmission. Signal transformation refers to digital processing, which may include demodulation, decoding, recoding, remodulation and / or filtering, which is equivalent to having all or part of the base station functions (such as gNB) on a satellite (or unmanned aircraft system platform (UAS platform)).

[0080] Figure 1 This is a schematic diagram of an NTN scenario based on transparent load. Figure 1 As shown, there are one or more gateways connecting the NTN network and the public data network. The feeder link is the wireless link between the gateway and the satellite (or UAS platform). The service link is the wireless link between the terminal and the satellite (or UAS platform). The satellite (or UAS platform) can implement transparent payload.

[0081] Figure 2 is a schematic diagram of a NTN scenario based on regenerative load. Figure 2 As shown, the NTN scenario also includes a feeder link and a service link. Figure 2 The presence of an inter-satellite link (ISL) between the satellites shown is optional. If there is no ISL, the satellite must have a feeder link (mandatory if no ISL). The inter-satellite link requires the satellite to be a regenerative payload (i.e., if there is an inter-satellite link, the satellite is a regenerative payload). The ISL can operate in RF frequencies or optical bands. User equipment is served by satellites (or UAS platforms) within the target service area. The target service area is the geographic area that the satellite can provide service.

[0082] Satellite communication works in the microwave frequency band, and its frequency range is 1GHz~40GHz. As shown in Table 1, the satellite spectrum and its main uses, the frequency range can be divided into: L, S, C, X, Ku, K, Ka, and different frequency bands have different uses. Among them, the K band corresponds to the frequency range of 18GHz to 27GHz. Because it is in the frequency window with the greatest impact of atmospheric absorption loss, it is not suitable for satellite communication. Therefore, the commonly used satellite communication frequency bands are: L, S, C, X, Ku, Ka. Among them, L and S bands are used for satellite mobile communications; C band has a relatively low frequency, wide signal coverage, and is less affected by weather. It is often used for satellite fixed business communications and other purposes, and is close to saturation; X band is a regulated band, mainly used for satellite fixed business communications; Ku band has a relatively high frequency and is easily affected by the antenna, causing signal fluctuations, but its signal strength is higher than that of C band. Therefore, the aperture of the ground receiving antenna is much smaller, usually as small as 0.35 meters in diameter, which is suitable for satellite TV live broadcast to households; Ka band has been put into use in recent years. Since C and Ku bands are close to saturation and cannot carry more services, the search for higher frequency Ka bands has begun. Among them, the higher the frequency band, the more bandwidth resources it has and the more business capacity it can support. With the vigorous development of satellite communications, Ku / Ka / Q / V and other bands have become hot spots for satellite communication applications, and spectrum resources will be quickly occupied and gradually scarce. Among them, the frequency range of Q band is 30-50GHz; the frequency range of V band is 50-75GHz.

[0083] Table 1 Satellite spectrum and main uses

[0084]

[0085] For frequency range (FR) 1, the frequency range and band number of NTN are shown in Table 2. ULlow -F ULhigh Indicates the frequency range of the uplink, F ULlow Indicates the low frequency of the uplink, F ULhigh Indicates the high frequency of the uplink. F DLlow -F DLhigh Indicates the frequency range of the downlink, F DLlow Represents the low frequency of the downlink, F DLhigh Indicates the high frequency of the downlink.

[0086] Table 2 NTN frequency band (FR1)

[0087]

[0088] For frequency bands above 10 GHz, the frequency range and band number of NTN are shown in Table 3.

[0089] Table 3 NTN frequency band (FR2)

[0090]

[0091]

[0092] Optionally, the network device may be a macro base station (also known as a large station), a micro base station or an indoor station (also known as a small station), or a relay node or a donor node, etc. The specific technology and specific device form adopted by the access network device are not limited in this application. Optionally, the communication device used to implement the function of the network device may be a network device, or a device that can support the network device to implement the function, such as a chip system, which may be installed in the network device.

[0093] Optionally, a terminal, also known as a terminal device (terminal), user equipment (UE), mobile station (MS), mobile terminal (MT), etc., is a device with wireless transceiver function, which can send signals to network devices or receive signals from network devices. The terminal device may include user equipment (UE), sometimes also called terminal, access station, UE station, remote station, wireless communication equipment, or user device, 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: cellular communication, D2D, V2X, M2M / MTC, IoT, virtual reality (VR), augmented reality (AR), industrial control, self driving, remote medical, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, drone, robot and other scenarios of terminal equipment. For example, the terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a VR terminal, an AR terminal, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a smart speaker in an IoT network, a wireless terminal device in telemedicine, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc. As an example but not a limitation, the terminal can also be a wearable device, which can also be called a wearable smart device or a smart wearable device, etc., which is a general term for the intelligent design and development of wearable devices for daily wear using wearable technology, such as glasses, gloves, watches, clothing and shoes, etc. The various terminals introduced above, if located on a vehicle (for example, placed in a vehicle or installed in a vehicle), can be considered as vehicle-mounted terminal devices, which are also called on-board units (OBUs). The terminal may also be a vehicle-mounted module, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip or vehicle-mounted unit that is built into the vehicle as one or more components or units. The vehicle may implement the methods described in the embodiments of the present application through the built-in vehicle-mounted module, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip or vehicle-mounted unit.

[0094] The network equipment and / or terminal equipment can be fixed or movable. The network equipment and / or terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; or can be deployed on the water surface; or can be deployed on aircraft, balloons and artificial satellites in the air. This application does not limit the environment / scenario in which the network equipment and terminal equipment are located. The network equipment and terminal equipment can be deployed in the same or different environments / scenarios, for example, the network equipment and terminal equipment are deployed on land at the same time; or, the network equipment is deployed on land and the terminal equipment is deployed on the water surface, etc., and examples are not given one by one.

[0095] The information transmission method provided in this application can be applied to Figure 3 In the communication system shown in FIG. Figure 3 The number of network devices and terminals shown is taken as an example, but the present application does not limit the number of network devices and terminals. Figure 3 In the figure, the network devices are satellite 110a, macro base station 110b, micro base station or indoor station 110c; the terminals are mobile phone 120a accessing the network through macro base station 110b, vehicle 120b accessing the network through satellite 110a, airplane 120c accessing the network through satellite 110a, mobile phone 120d accessing the network through satellite 110a, printer 120e, mobile phone 120f, and computer 120g accessing the network through micro base station or indoor station 110c. Optionally, mobile phone 120d can communicate with satellite 110a by using airplane 120c as a relay. Mobile phone 120f can communicate with micro base station or indoor station 110c by using computer 120g as a relay.

[0096] The interference between different network devices can be divided into downlink interference and uplink interference according to the signal direction. Downlink interference has the characteristics of few interference sources and strong interference. The interference source of mobile phone 120a is satellite 110a. If satellite 110a covers the mobile phone 120a, and other satellites do not cover the mobile phone 120a, then the interference of other satellites to mobile phone 120a mainly comes from the side lobes of the transmitting beam, so the path loss is large and the interference level is low. Therefore, the main source of interference to mobile phone 120a is satellite 110a. Since low-orbit satellites are closer to ground terminals, if satellite 110a is a low-orbit satellite, then the interference intensity of satellite 110a to mobile phone 120a is also strong. For example, Figure 4 This is a schematic diagram of low-orbit satellite interference with ground terminals. Ground terminals refer to terminals that communicate through ground networks, such as Figure 4 As shown, the terminal is a ground terminal, and the interference sources of terminal 1 are satellite 1 and satellite 2. Satellite 1 and satellite 2 are both low-orbit satellites. Satellite 1 covers terminal 1. The interference of satellite 2 to terminal 1 mainly comes from the side lobe of the transmitting beam, so the path loss is large and the interference level is low. Therefore, satellite 1 is the main interference source of terminal 1.

[0097] Uplink interference has the characteristics of multiple interference sources, strong aggregate interference, and beam-level interference. The interference source to satellite 110a can be all ground terminals within the coverage or visual range of the satellite 110a. In particular, the ground terminals located near the main lobe of the low-orbit satellite are the main interference sources. These ground terminals have strong aggregate interference to the low-orbit satellite. In the scenario where the low-orbit satellite is a multi-beam satellite, the interference to the low-orbit satellite has beam-level characteristics, that is, different beam directions are subject to different interference. For example, Figure 5 is another schematic diagram of ground terminals interfering with low-orbit satellites. The interference source to the low-orbit satellite may be all ground terminals within the coverage or visible range of the low-orbit satellite except for the terminals it serves, such as Figure 5 As shown in the figure, the dotted line represents the interference signal of the ground terminal to the satellite. All ground terminals within the satellite coverage or visual range will interfere with the satellite. Figure 5 As shown, the coverage of a satellite is the geographical area that the satellite can provide services, and the visible range of a satellite is the geographical area within the tangent range between the satellite and the earth's surface. The visible range of a satellite is usually larger than the coverage of the satellite.

[0098] The interference between different network devices can be divided into satellite-to-ground interference (such as Figure 3 interference between satellite 110a and base station 110b) and high and low orbit interference (such as Figure 3 Satellite 110a will interfere with high-orbit satellites if satellite 110a is a low-orbit satellite. In satellite-to-ground interference, since there are many base stations and terminals in the ground cellular network and LEO satellites are closer to the ground, the path loss is smaller. Therefore, LEO satellites are prone to interference with ground cellular networks. For example, Figure 6 This is a schematic diagram of the satellite-to-ground interference scenario. Figure 6 As shown in the figure, the solid line segment represents the effective signal, the dotted line segment represents the interference signal, and the arrow represents the signal direction. Figure 6 The satellite-to-ground interference classification is shown in Table 4. Cellular base stations and cellular terminals will be interfered by LEO satellites due to satellite power leakage of LEO satellites. In addition, due to power leakage of LEO satellite terminals, cellular base stations will also be interfered by LEO satellite terminals. Since LEO satellites are close to the ground, they will be interfered by power leakage of cellular base stations and cellular terminals. LEO satellite terminals will also be interfered by cellular base stations due to power leakage of cellular base stations.

[0099] Table 4 Classification of satellite-to-ground interference

[0100]

[0101] In high-orbit and low-orbit interference, high-orbit satellites have a large coverage area, and the coverage of low-orbit satellites will overlap with the coverage of high-orbit satellites. Since low-orbit satellites have smaller path loss, interference is more likely to occur between high-orbit satellites and low-orbit satellites. For example, Figure 7 This is a schematic diagram of the interference scenario between a low-orbit satellite and a high-orbit satellite, such as Figure 7 As shown, the solid line segment represents the valid signal, the dotted line segment represents the interference signal, and the arrow represents the signal direction. Figure 7 The classification of high and low orbit interference is shown in Table 5. LEO satellites will be interfered by GEO satellite terminals due to power leakage, GEO satellites will be interfered by LEO satellite terminals due to power leakage, LEO satellite terminals will be interfered by GEO satellites due to power leakage, and GEO satellite terminals will be interfered by LEO satellites due to power leakage.

[0102] Table 5 Classification of high and low orbit interference

[0103]

[0104] The information processing method provided in the embodiment of the present application can analyze the uplink transmission of the terminal served by one or more network devices in the above interference scenario, and the uplink reception of other network devices, resulting in the total uplink interference. Therefore, it is helpful to evaluate the uplink interference situation based on the uplink total interference, reduce the uplink interference through interference coordination, so that each network device can coexist on the same frequency and improve the spectrum utilization. The embodiment of the present application is described below in conjunction with the accompanying drawings.

[0105] See also Figure 8 , Figure 8 is a flowchart of an information processing method provided in an embodiment of the present application, Figure 8 The information processing method shown is described by taking the interaction between a first network device and at least one second network device as an example. Figure 8 As shown, the information processing method may include but is not limited to the following steps:

[0106] S101. At least one second network device sends terminal information, and accordingly, the first network device receives the terminal information, and the terminal information sent by or from the second network device includes the number of terminals served by the second network device, the location information of the serviced terminals, and the EIRP information;

[0107] In an optional implementation, the terminal information includes the number of terminals served by at least one second network device, location information of the served terminals, and equivalent isotropic radiated power (EIRP) information. Optionally, multiple second network devices send the terminal information to one of the second network devices, and the second network device forwards the terminal information of the multiple second network devices to the first network device.

[0108] In another optional implementation, the terminal information includes the number of terminals served by the second network device, location information of the served terminals, and EIRP information. Optionally, a plurality of second network devices may send their own terminal information to the first network device respectively.

[0109] Optionally, if the first network device is a mobile network device, such as a satellite, the first network device also needs to send its own location information to at least one second network device, so that the second network device can determine the EIRP information of the terminal served by the second network device based on the location information. The location information may include parameters such as longitude, latitude, altitude and speed, and may also include motion trajectory parameters, such as orbital parameters. The EIRP information may include the average antenna gain of the user served by the second network device, and also include the average transmit power or transmit power statistics of the terminal served by the second network device. Optionally, the transmit power statistics of the terminal served by the second network device may be a cumulative distribution function (CDF) curve of the transmit power. Due to uplink power control, the transmit power of the terminal changes dynamically, and the CDF curve of the transmit power is a statistic of the terminal transmit power over a period of time.

[0110] Optionally, the number of terminals served by the second network device and the EIRP information of the served terminals may also be referred to as the connection terminal information of the second network device. The location information of the second network device or the served geographical area may be equivalent to the location information of the terminals served by the second network device.

[0111] Optionally, one or more second network devices may send the terminal information periodically or in an event-triggered manner.

[0112] S102. The first network device determines, based on the terminal information, a total uplink interference caused by at least one terminal served by the second network device to the first network device.

[0113] In an optional implementation, the terminal information also includes frequency domain configuration information of uplink transmission of at least one second network device. The frequency domain configuration information of uplink transmission of the second network device is the frequency domain configuration information of the second network device uplink scheduling the terminal it serves for uplink transmission, and may also be referred to as the frequency domain configuration information or frequency domain resource information of the uplink scheduling of the second network device. Optionally, the frequency domain configuration information of uplink transmission or uplink scheduling may include the frequency range or bandwidth occupied by the uplink transmission or uplink scheduling. Accordingly, step S102 may include: the first network device determines the antenna receiving gain based on the location information of the terminal served by the second network device; and determines the uplink interference caused by the terminal served by the second network device to the first network device based on the EIRP information of the terminal served by the second network device, the antenna receiving gain and the frequency domain configuration information of the uplink transmission of the second network device. Accordingly, the first network device can use this method to determine the uplink interference caused by other terminals served by the second network device to the first network device.

[0114] In step S102, the first network device determines the total uplink interference generated by a terminal served by the second network device to the first network device, and the total uplink interference is the uplink interference generated by a terminal served by the second network device to the first network device. In step S102, the first network device determines the total uplink interference generated by terminals served by multiple second network devices to the first network device, and the total uplink interference is obtained by summing up the uplink interference generated by terminals served by multiple second network devices to the first network device.

[0115] In an optional implementation, the uplink interference generated by the terminal served by the second network device to the first network device is the interference-to-noise ratio (INR) generated by the terminal served by the second network device to the first network device. In this way, the first network device determines the INR generated by the terminal served by the second network device to the first network device based on the EIRP information of the terminal served by the second network device, the antenna receiving gain G, and the frequency domain configuration information of the uplink transmission of the second network device, including: the first network device determines the EIRP according to the EIRP information of the user served by the second network device; determines the ratio G / T between the antenna receiving gain G and the noise temperature T according to the location information of the terminal served by the second network device and the antenna receiving gain G; determines the free space path loss PL according to the location information of the terminal served by the second network device FS ; According to the loss model, determine other path losses PL other , such as atmospheric loss, flicker loss, human body loss, polarization loss, shadow fading, rain attenuation, etc.; determine the bandwidth B according to the frequency domain configuration information of the uplink transmission of the second network device; then, the first network device determines the bandwidth B according to the EIRP, the ratio G / T between the antenna receiving gain G and the noise temperature T, and the free space path loss PLFS , other losses PL other , bandwidth B determines the INR generated by the terminal served by the second network device to the first network device.

[0116] Optionally, the first network device can be configured to generate a signal based on EIRP, a ratio G / T, and a PL FS , PL other B. Determine the INR generated by the terminal served by the second network device to the first network device, which can be obtained by the following formula:

[0117] INR[dB]=EIRP[dBW]+G / T[dB / K]-k[dBW / K / Hz]-PL FS [dB]-PL other [dB]-B[dBHz](1)

[0118] Where k is the Boltzmann constant, such as -228.6. [dB] represents the unit decibel, [dBW] represents the unit of absolute power, with 1 watt W as the benchmark, dBW = 10lg (P / 1W), P represents power; K is the unit of noise temperature, Kelvin (kelvins, K); [dBHz] represents the unit of bandwidth B is decibel Hertz (Hz).

[0119] Correspondingly, the total uplink interference generated by the terminal served by at least one second network device on the first network device is the ratio I / N of the uplink aggregate interference I to the noise N, which is obtained by summing the INR generated by the terminal served by at least one second network device on the first network device.

[0120] In an optional implementation, the first network device performs statistics on multiple I / Ns determined within a statistical period to obtain a CDF curve of the total uplink interference I / N; the first network device can determine the total uplink interference generated by at least one terminal served by the second network device to the first network device based on the CDF curve of the total uplink interference I / N. The period for the second network device to send terminal information is less than the statistical period of the first network device for the determined I / N. The CDF curve of the total uplink interference I / N can characterize the percentage of I / N in different situations within the statistical period. For example, the I / N corresponding to 20% of the time within the statistical period is not greater than -X1[dB], and the I / N corresponding to 0.03% of the time within the statistical period is not greater than -X2[dB]; the I / N corresponding to 0.005% of the time within the statistical period is not greater than -X3[dB]; the I / N corresponding to 100% of the time within the statistical period is not greater than -X3[dB]. X1 to X3 are positive numbers.

[0121] Optionally, the CDF curve of the uplink total interference I / N can not only characterize the percentage of different I / Ns in the statistical period, but also reflect that for a certain proportion of time in the statistical period, the corresponding I / N is not greater than a certain value [dB], and the bit error rate (BER) caused does not exceed a certain proportion. For example, for more than 20% of the time in the statistical period, the BER caused does not exceed the first proportion, and the corresponding I / N is not greater than -X1 [dB]; for 0.03% of the time in the statistical period, the BER caused does not exceed the second proportion, and the corresponding I / N is not greater than -X2 [dB]; for 0.005% of the time in the statistical period, the BER caused does not exceed the third proportion, and the corresponding I / N is not greater than -X3 [dB]; for 100% of the time in the statistical period, the BER caused does not exceed the third proportion, and the corresponding I / N is not greater than -X3 [dB]. Among them, X1 to X3 are greater than or equal to 0.

[0122] In another optional implementation, the uplink interference generated by the terminal served by the second network device to the first network device is the interference power generated by the terminal served by the second network device to the first network device. Accordingly, the total uplink interference is the sum of the interference powers generated by at least one terminal served by the second network device to the first network device.

[0123] In an optional implementation, after step S102, Figure 8 The information transmission method shown also includes the following steps:

[0124] S103. The first network device determines whether to perform interference coordination based on the total uplink interference generated by at least one terminal served by the second network device on the first network device.

[0125] In an optional implementation, taking the uplink total interference as I / N as an example, step S103 includes: if the I / N calculated by the first network device is greater than the interference threshold, it is determined to perform interference coordination; if the I / N calculated by the first network device is less than or equal to the interference threshold, it is determined not to perform interference coordination. Optionally, the interference threshold is the interference threshold of the communication system where the first network device is located given by the International Telecommunication Union (ITU). The interference threshold can also be called an interference protection threshold, a protection threshold, etc.

[0126] In another optional implementation, taking the uplink total interference as I / N as an example, step S103 includes: the first network device determines whether to perform interference coordination according to the CDF curve of the uplink total interference I / N. Optionally, the interference threshold given by the ITU is represented by a CDF curve, which is called the CDF curve of the interference threshold I / N. The first network device determines whether to perform interference coordination according to the CDF curve of the uplink total interference I / N and the CDF curve of the interference threshold I / N.

[0127] The CDF curve of the interference threshold I / N represents the interference threshold I / N corresponding to the time that exceeds a certain proportion within the statistical period, which should not cause the bit error rate BER to exceed a certain proportion. For example, but not limited to, within the statistical period, the time that exceeds the first proportion should not cause the BER to exceed the first value, and the corresponding interference threshold I / N is -T1[dB]; within the statistical period, the time that exceeds the second proportion should not cause the BER to exceed the second value, and the corresponding interference threshold I / N is -T2[dB]; within the statistical period, the time that exceeds the third proportion should not cause the BER to exceed the third value, and the corresponding interference threshold I / N is -T3[dB]. Among them, T1 to T3 are greater than or equal to 0. For example, on the CDF curve of the uplink total interference I / N, the time that exceeds the first proportion should not cause the BER to exceed the uplink total interference I / N corresponding to the first value, and is less than or equal to the interference threshold I / N corresponding to the first value, and the time that exceeds the first proportion on the CDF curve of the interference threshold I / N should not cause the BER to exceed the first value. The time on the CDF curve of the uplink total interference I / N that exceeds the first proportion should not cause the BER to exceed the uplink total interference I / N corresponding to the first value, which is less than or equal to -T1 [dB]. The time on the CDF curve of the uplink total interference I / N that exceeds the second proportion should not cause the BER to exceed the uplink total interference I / N corresponding to the second value, which is less than or equal to -T2 [dB]. The time on the CDF curve of the uplink total interference I / N that exceeds the third proportion should not cause the BER to exceed the uplink total interference I / N corresponding to the third value, which is less than or equal to -T3 [dB].

[0128] In an optional implementation, taking the sum of interference powers generated by at least one terminal served by the second network device to the first network device as an example, step S103 includes: if the sum of interference powers calculated by the first network device is greater than the interference threshold, it is determined to perform interference coordination; if the sum of interference powers calculated by the first network device is less than or equal to the interference threshold, it is determined not to perform interference coordination. Optionally, the interference threshold is given by the ITU, or determined by the first network device, or predefined.

[0129] In an optional implementation, Figure 8 The information transmission method shown also includes the following steps: if the first network device determines to perform interference coordination, step S104 is performed; if the first network device determines not to perform interference coordination, the process ends.

[0130] S104. The first network device performs interference coordination.

[0131] In an optional implementation, step S104 includes: the first network device determines the first area based on the uplink interference generated by at least one terminal served by the second network device to the first network device; and determines the beam weight of the receiving beam, wherein the beam weight is used to determine the beam direction, the main lobe of the receiving beam points to other areas except the first area, or the null direction of the receiving beam points to the first area.

[0132] Optionally, the interference intensity of the uplink interference generated by the terminal served by the second network device in the first area to the first network device is greater than a preset value. Taking the interference intensity of the uplink interference as INR as an example, the first network device determines the first area, which may include: the first network device determines multiple areas based on the location information of the terminals respectively served by at least one network device; the first network device may determine one or more areas from the multiple areas where the INR generated by the terminal served by the second network device to the first network device is greater than a preset value as the first area. Optionally, the preset value is an empirical value, defined by a protocol, or determined by the first network device.

[0133] Optionally, the first area is an area where one or more second network devices are located, where the interference intensity of uplink interference generated by the served terminal to the first network device is greater than a preset value. Taking the interference intensity of uplink interference as INR as an example, the first network device determines the first area, which may include: the first network device determines one or more second network devices where the INR generated by the served terminal to the first network device is greater than a preset value; the first network device determines the area where one or more second network devices are located, or the area where the terminals respectively served by one or more second network devices are located as the first area.

[0134] In another optional implementation, step S104 includes: the first network device configures a frequency band for uplink transmission, wherein the frequency band for uplink transmission of the first network device does not overlap with the frequency band for uplink transmission of at least one second network device. Fig. 9 As shown, the two do not overlap.

[0135] visible, Figure 8In the information processing method, the first network device can determine the total uplink interference generated by the terminals served by one or more second network devices by executing steps S101 and S102, thereby facilitating the execution of corresponding interference coordination based on the total uplink interference. Furthermore, the first network device can determine whether interference coordination needs to be executed by executing step S103. If it is determined that interference coordination needs to be executed, the interference coordination including but not limited to the above step S104 can be executed, thereby reducing the interference generated by the terminals served by at least one second network device to the first network device, and also facilitating the uplink same-frequency coexistence of the first network device and at least one second network device or the communication system where at least one second network device is located, thereby improving the utilization rate of the spectrum.

[0136] See also Fig.10 , Fig.10 It is a schematic diagram of another information processing method provided in an embodiment of the present application. Fig.10 The first network device is a satellite, the terminal served by the first network device is a satellite terminal, the second network device is a network device within the coverage or visible range of the satellite, such as a cellular base station within the coverage or visible range of the satellite, and the terminal served by the second network device is a cellular terminal. Since the cellular terminal usually uses an omnidirectional antenna, the antenna transmission gain is fixed and does not change with the angle, so the satellite does not need to send its own ephemeris information to the cellular base station so that the cellular base station can determine the antenna transmission gain and EIRP information of the cellular terminal.

[0137] like Fig.10 As shown, the cellular base station sends terminal information to the satellite, and the terminal information includes the number of cellular terminals served by the cellular base station, the location information of the cellular terminals served by the cellular base station, and EIRP information. Other cellular base stations within the coverage or visible range of the satellite can also send terminal information to the satellite. The satellite receives the terminal information sent by the cellular base station and other cellular base stations, and determines the total uplink interference caused to the satellite by the cellular terminals served by the cellular base station and other cellular base stations based on the received terminal information. Optionally, the satellite determines whether to perform interference coordination based on the total uplink interference; if it is determined to perform interference coordination, then interference coordination is performed; if it is determined not to perform interference coordination, then this process ends. Among them, Fig.10 For the relevant contents of the information processing method shown, such as the contents of the terminal information and the optional implementation method of determining the total uplink interference caused to the satellite by the cellular terminals served by the cellular base station and other cellular base stations according to the received terminal information, please refer to Figure 8 The relevant contents in the information processing method are not repeated here.

[0138] Optional, Fig.10In the information processing method shown, the location information of the cellular base station can be used as or equivalent to the location information of the cellular terminal served by the cellular base station and sent to the satellite, that is, the location information of the cellular terminal served by the cellular base station can be the location information of the cellular base station.

[0139] Taking the uplink interference generated by the terminal served by the cellular base station to the satellite as INR as an example, the satellite determines the INR generated by the cellular terminal served by the cellular base station to the satellite by referring to the above formula (1). Figure 8 The determination of G / T in the method, Fig.10 In the method, the satellite needs to be determined based on the location information of the cellular base station, the satellite's ephemeris information and the antenna pattern; relative to Figure 8 The free space path loss PL FS In the embodiment of the present application, the satellite needs to be determined based on the location information of the cellular base station and other cellular base stations, as well as the satellite's ephemeris information.

[0140] Optional, relative to Figure 8 The interference threshold used in the method, Fig.10 The method uses the recommended value of the interference threshold of the satellite system given by the ITU. If the total uplink interference I / N calculated by the satellite is less than or equal to the recommended value of the interference threshold, the satellite does not need to perform interference coordination, and the satellite can coexist with the uplink of the terrestrial cellular system. If the total uplink interference I / N calculated by the satellite is greater than the recommended value of the interference threshold, the satellite can coexist with the uplink of the terrestrial cellular system but needs to perform interference coordination, or the satellite does not coexist with the uplink of the terrestrial cellular system.

[0141] Optional, relative to Figure 8 The CDF curve of the interference threshold I / N used in the method, Fig.10 The method uses the CDF curve of the interference threshold I / N of the satellite system given by the ITU. For example, the ITU recommends that the interference from the fixed service system, such as the cellular base station, to the satellite system has the following restrictions: Taking the statistical period as an example, for any month, more than 20% of the time should not cause the BER to exceed 1×10 -6 , the corresponding interference threshold I / N = -10dB; for more than 0.03% of the time in any month, the BER should not exceed 1×10 -4 , the corresponding interference threshold I / N = -2.4dB; for any month more than 0.005% of the time should not cause the BER to exceed 1×10-3, the corresponding interference threshold I / N = 0dB; for any month more than 100% of the time should not cause the BER to exceed 1×10-7, the corresponding interference threshold I / N = -12dB. Accordingly, the above-mentioned restrictions on the interference threshold given by ITU can be expressed as follows Fig.11The percentage of the worst month and the corresponding relationship between I / N (dB) are shown in Figure 1. The percentage of the worst month refers to the percentage of months corresponding to the interference threshold that does not cause the BER to exceed a certain value. Fig.11 The corresponding relationship shown in the figure is converted into a CDF curve, which can be Fig.12 Correspondingly, the satellite determines whether to perform interference coordination based on the CDF curve of the uplink total interference I / N and the CDF curve of the interference threshold I / N.

[0142] Fig.10 In the method, the optional implementation of the satellite performing interference coordination can refer to the relevant description of step S104 in the above method, which will not be described in detail here. Fig.13 A schematic diagram of a beam weight is shown in FIG. Fig.13 Each diamond-shaped area in the satellite is used as a plurality of areas determined by the satellite according to the location information of the terminal served by each cellular base station. The satellite determines an area where the interference intensity is greater than a preset value according to the uplink interference caused to the satellite by the terminal served by the cellular base station in each diamond-shaped area, such as Fig.13 The area filled in medium gray is the first area. In this way, the main lobe of the satellite's receiving beam does not point to the first area. If the null direction of the receiving beam is adjusted to point to the first area, the uplink interference caused by the uplink transmission of the cellular terminal to the uplink reception of the satellite can be reduced.

[0143] visible, Fig.10 In the satellite-to-ground uplink interference scenario shown, the ground cellular system is the interferer and the satellite system is the interfered party. After the cellular base station periodically reports the terminal information related to itself to the satellite system, the satellite can calculate the total uplink interference based on the above terminal information. Based on the calculated total uplink interference, the satellite determines whether to perform interference coordination or whether to co-exist with the uplink of the ground cellular system. Therefore, when the total uplink interference is less than or equal to the interference threshold, the ground cellular system can co-exist with the uplink of the satellite system, thereby improving spectrum utilization. If the total uplink interference is greater than the interference threshold, the ground cellular system cannot co-exist with the uplink of the satellite system, and the uplink interference of the ground cellular system to the satellite system can be reduced by beam weight design.

[0144] In addition, the scenario considered in the embodiments of the present application is the interference of the uplink transmission of the cellular terminal to the uplink reception of the satellite, rather than the interference of the uplink transmission of the satellite gateway station to the uplink reception of the cellular base station. For example, in the interference of the uplink transmission of the satellite gateway station to the uplink reception of the cellular base station, the cellular base station receives the relevant information of the gateway station. If it is applied to the analysis of the satellite-to-ground uplink interference scenario, it will greatly affect the accuracy of the interference analysis. In addition, the embodiments of the present application first analyze the interference situation and then perform the interference coordination operation, which also avoids the problem of low spectrum utilization caused by blindly allowing the cellular base station to avoid a certain frequency domain resource to reduce the uplink interference to the satellite.

[0145] See also Fig.14 , Fig.14 It is a schematic diagram of another information processing method provided in an embodiment of the present application. Fig.14 Take the first network device as a low-orbit satellite, the terminal served by the first network device as a low-orbit terminal, the second network device as a high-orbit satellite whose geographical area of ​​service is within the coverage or visible range of the low-orbit satellite, and take the terminal served by the second network device as a high-orbit terminal as an example. The location information of the terminal served by the second network device is the location information of the geographical area served by the high-orbit satellite, and the terminal served by the second network device is the terminal served by the high-orbit satellite in the geographical area. Since the high-orbit terminal uses a non-omnidirectional antenna, the antenna transmission gain is not fixed, but varies with the angle, so the low-orbit satellite needs to send its own ephemeris information to the high-orbit satellite so that the high-orbit satellite can determine the antenna transmission gain and EIRP information of the high-orbit terminal.

[0146] Among them, the geographical area served by the high-orbit satellite refers to the geographical area covered by the beam of the high-orbit satellite. If the high-orbit satellite adopts a beam hopping mechanism, the N beams of the high-orbit satellite point to the N geographical areas within the coverage range in the [t0, t1] time period, and point to other N geographical areas within the coverage range in the [t1, t2] time period (which may be different from or the same as the N geographical areas pointed to in the [t0, t1] time period). The beam position scheduling information of the high-orbit satellite refers to the beam pointing (direction) information of the high-orbit satellite in different time periods within a period of time. The ephemeris information of the low-orbit satellite can be an orbital parameter ephemeris or a position and velocity state vector ephemeris. The orbital parameter ephemeris includes parameters such as the satellite's semi-major axis, eccentricity, argument of periapsis, longitude of ascending node, inclination, and mean anomaly of the reference time (epoch time). The velocity state vector ephemeris includes the 3D position vector and 3D velocity vector of the satellite at the reference time.

[0147] Fig.14In the information processing method shown, a low-orbit satellite sends ephemeris information of the low-orbit satellite to at least one high-orbit satellite. Based on the ephemeris information, at least one high-orbit satellite determines the EIRP information of the terminals served by at least one high-orbit satellite in the geographical area it serves; at least one high-orbit satellite sends terminal information to the low-orbit satellite, and the terminal information includes the location information of the geographical area served by at least one high-orbit satellite and the number and EIRP information of the cellular terminals served by at least one high-orbit satellite in the geographical area; the low-orbit satellite determines the total uplink interference caused to the low-orbit satellite by the cellular terminals served by at least one high-orbit satellite in the geographical area based on the received terminal information. Optionally, the low-orbit satellite determines whether to perform interference coordination based on the total uplink interference; if it is determined to perform interference coordination, then interference coordination is performed; if it is determined not to perform interference coordination, then this process ends. Among them, Fig.14 For relevant contents of the information processing method shown, such as optional implementation methods for a low-orbit satellite to determine the total uplink interference caused by a cellular terminal served by a high-orbit satellite in the geographical area to the low-orbit satellite, please refer to Figure 8 The relevant contents in the information processing method are not repeated here.

[0148] Optional, Fig.14 In the information processing method shown, the location information of the geographical area served by the high-orbit satellite can be used as or equivalent to the location information of the terminal served by the high-orbit satellite in the geographical area, and sent to the low-orbit satellite. The location information of the geographical area served by the high-orbit satellite can be the wave position scheduling information within [t1, t2]. The wave position scheduling information is a two-dimensional matrix composed of the time unit index and the wave position index of the high-orbit satellite scheduling wave position, or a structure composed of three elements: the time unit index, the beam normal pointing of the high-orbit satellite scheduling wave position, and the beam coverage radius. Among them, the information on the beam normal pointing of the high-orbit satellite scheduling wave position may include longitude and latitude, or may include azimuth and pitch angle. Among them, the average antenna gain of the terminal served by the high-orbit satellite in the geographical area served is determined according to the direction of the low-orbit satellite relative to the high-orbit satellite scheduling wave position. Among them, the frequency domain configuration information of the terminal served by the high-orbit satellite is associated with the high-orbit satellite scheduling wave position, and can also be called associated with the wave position scheduling information of the high-orbit satellite. The high-orbit satellite scheduling beam position is determined based on the beam position scheduling information of the high-orbit satellite. The beam position scheduling information can be found in the above description and will not be described in detail here. The frequency domain configuration information includes the frequency band, resource block (RB) or subcarrier occupied by the high-orbit satellite uplink scheduling (or uplink transmission).

[0149] Taking the uplink interference generated by the terminal served by the high-orbit satellite in the geographical area to the low-orbit satellite as INR as an example, the low-orbit satellite determines the INR generated by the terminal served by the high-orbit satellite in the geographical area to the low-orbit satellite, which can be referred to the above formula (1). Figure 8The determination of G / T in the method, Fig.14 In the method, the low-orbit satellite needs to be determined based on the location information of the geographical area, the ephemeris information of the low-orbit satellite and the antenna pattern; Figure 8 The free space path loss PL FS Of determination, Fig.14 In the method, the low-orbit satellite needs to be determined based on the location information of the geographical area and the ephemeris information of the low-orbit satellite.

[0150] Optional, Fig.14 The method may also use the recommended value of the interference threshold of the satellite system given by the ITU. If the total uplink interference I / N calculated by the low-orbit satellite is less than or equal to the recommended value of the interference threshold, the low-orbit satellite does not need to perform interference coordination, and the low-orbit satellite can coexist with the uplink system of the high-orbit satellite. If the total uplink interference I / N calculated by the low-orbit satellite is greater than the recommended value of the interference threshold, the low-orbit satellite can coexist with the uplink system of the high-orbit satellite but interference coordination needs to be performed, or the low-orbit satellite does not coexist with the uplink system of the high-orbit satellite.

[0151] Optional, Fig.14 The method uses the CDF curve of the interference threshold I / N of the high-orbit satellite system given by the ITU, such as the CDF curve of the interference I / N from other satellite service systems, such as the terminals served by the high-orbit satellite, to the low-orbit satellite system recommended by the ITU. Accordingly, the low-orbit satellite determines whether to perform interference coordination based on the CDF curve of the uplink total interference I / N and the CDF curve of the interference threshold I / N.

[0152] Fig.14 In the method, the optional implementation of the low-orbit satellite performing interference coordination can refer to the relevant description of step S104 in the above method. For example, Fig.15 Another schematic diagram of the beam weights shown in FIG. Fig.15 Each diamond-shaped area in the figure is a plurality of areas determined by the low-orbit satellite according to the position information of the high-orbit terminal served by the high-orbit satellite. The low-orbit satellite determines the area where the interference intensity is greater than the preset value according to the uplink interference caused by the high-orbit terminal to the satellite in each diamond-shaped area, such as Fig.15 The area filled in medium gray is the first area. In this way, the low-orbit satellite designs the weight of the receiving beam so that the main lobe of the receiving beam of the low-orbit satellite does not point to the first area, such as adjusting the null direction of the receiving beam to point to the first area. Thus, the uplink interference caused by the uplink transmission of the high-orbit terminal to the uplink reception of the low-orbit satellite can be reduced.

[0153] For another example, the low-orbit satellite determines the INR generated by the terminals served by each high-orbit satellite in each geographical area to the low-orbit satellite, and determines or identifies the geographical area where the interference intensity is greater than a preset value; the low-orbit satellite then determines the frequency domain configuration information corresponding to the geographical area where the interference intensity is greater than the preset value based on the frequency domain configuration information associated with the geographical area in the terminal information sent by the high-orbit satellite. When the receiving beam of the low-orbit satellite points to the geographical area where the interference intensity is greater than the preset value, the frequency domain resource scheduling is performed so that there is no overlap between the uplink frequency band of the low-orbit satellite and the frequency band or frequency domain of the uplink transmission of the high-orbit satellite, such as Fig. 9 shown.

[0154] visible, Fig.14 In the high-orbit and low-orbit uplink interference scenario shown in the figure, the high-orbit satellite system is the interferer and the low-orbit satellite system is the interfered party. After the high-orbit satellite periodically reports the terminal information related to the low-orbit satellite (such as the wave position scheduling information, the user information of the scheduled wave position, and the frequency domain configuration information associated with the scheduled wave position) to the low-orbit satellite system, the low-orbit satellite can calculate the total uplink interference based on the above interference information. If the total uplink interference is less than or equal to the interference threshold, the low-orbit satellite system can coexist with the high-orbit satellite system uplink at the same frequency to improve spectrum utilization. If the total uplink interference is greater than the interference threshold, the low-orbit satellite system can reduce the uplink interference of the high-orbit terminal to the low-orbit satellite by beam weight design or non-overlapping frequency bands.

[0155] In addition, the scenario considered in the embodiments of the present application is the interference of the uplink transmission of the high-orbit terminal to the uplink reception of the low-orbit satellite, rather than the downlink interference between the high and low orbits, such as the interference of the downlink transmission of the low-orbit satellite to the high-orbit terminal, and the interference of the downlink transmission of the high-orbit satellite to the low-orbit terminal. In addition, the embodiments of the present application first analyze the interference situation and then perform the interference coordination operation, which also avoids the problem of low spectrum utilization caused by blindly allowing the high-orbit terminal to avoid a certain frequency domain resource to reduce the uplink interference to the low-orbit satellite.

[0156] In yet another embodiment, Figure 8 The information processing method can also be applied to the interference scenario of large and small towers, analyzing the total uplink interference caused by the uplink transmission of the terminal served by the small tower to the uplink reception of the large tower. For example, the second network device includes but is not limited to Figure 3 The micro base station 110c shown, the terminals served by the second network device include but are not limited to Figure 3 The printer 120e, mobile phone 120f, computer 120g shown, the first network device is Figure 3 The terminals served by the macro base station 110b shown in the figure include but are not limited to: Figure 3In the mobile phone 120a shown, the macro base station 110b receives the terminal information of at least one micro base station, and the terminal information includes the number of terminals served by at least one micro base station, the location information of the terminals served by at least one micro base station, and the equivalent isotropic radiated power information; based on the terminal information, the total uplink interference caused by the terminals served by at least one micro base station to the macro base station 110b is determined. In this way, the macro base station 110b can learn the total uplink interference caused by the uplink transmission of the terminals served by at least one micro base station to the uplink reception of the macro base station 110b, and further, the interference coordination operation described in the embodiment of the present application can be used to reduce interference and improve spectrum utilization. Optionally, the embodiment of the present application can also adopt Figure 8 The optional implementation modes of the method will not be described in detail here.

[0157] In yet another embodiment, Figure 8 The information processing method can also be applied to the interference scenario of large and small towers, analyzing the total uplink interference caused by the uplink transmission of the terminal served by the large tower to the uplink reception of the small tower. For example, the first network device includes but is not limited to Figure 3 The micro base station 110c shown in the figure, the terminals served by the first network device include but are not limited to Figure 3 The printer 120e, mobile phone 120f, computer 120g shown, the second network device is Figure 3 The terminals served by the macro base station 110b shown in the figure include but are not limited to Figure 3 In the mobile phone 120a shown, the micro base station 110c receives the terminal information of the macro base station, and the terminal information includes the number of terminals served by the macro base station, the location information of the terminals, and the equivalent isotropic radiated power information; based on the terminal information, the total uplink interference caused by the terminals served by the macro base station to the micro base station 110c is determined. In this way, the micro base station 110c can learn the total uplink interference caused by the uplink transmission of the terminals served by the macro base station to the uplink reception of the micro base station 110c, and then, the interference coordination operation described in the embodiment of the present application can be used to reduce interference and improve spectrum utilization. Optionally, the embodiment of the present application can also use Figure 8 The optional implementation modes of the method will not be described in detail here.

[0158] In the embodiments provided by the present application, the scheme of the information processing method provided by the embodiment of the present application is introduced from the perspective of each device itself and from the interaction between each device. It is understandable that each device, such as the first network device, the second network device, the terminal, the low earth orbit satellite, the geostationary orbit satellite, etc., in order to realize the above functions, includes the hardware structure and / or software unit corresponding to each function. It should be easily appreciated by those skilled in the art that the present application can be implemented in the form of hardware or a combination of hardware and computer software in conjunction with the units and algorithm steps of each example described in the embodiments disclosed in the present application. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but this implementation should not be considered to exceed the scope of the present application.

[0159] See also Fig.16 , Fig.16 A schematic diagram of the structure of a communication device provided in an embodiment of the present application. Fig.16 The communication device shown includes a transceiver module 1601 and a processing module 1602 .

[0160] In one embodiment, in one design, the communication device is a first network device or a related device in the first network device:

[0161] Exemplarily, the transceiver module 1601 is used to receive terminal information of at least one second network device, the terminal information including the number of terminals served by at least one second network device, location information of the terminals served by at least one second network device, and equivalent isotropic radiated power information; the processing module 1602 is used to determine the total uplink interference caused by the terminals served by at least one second network device to the first network device based on the terminal information.

[0162] Optionally, when the communication device is a first network device or a device related to the first network device, it is used to implement Figures 8 to 15 The functions and optional implementation methods of the first network device in the illustrated embodiment.

[0163] In one design, the communication device is a second network device or a related device in the second network device:

[0164] Exemplarily, the transceiver module 1601 is used to send terminal information, where the terminal information includes the number of terminals served by the second network device, location information of the served terminals, and equivalent isotropic radiated power EIRP information; the terminal information is used to determine the uplink interference generated by the terminals served by the second network device to the first network device. Optionally, the communication device may also include a processing module 1602, which is used to determine the terminal information.

[0165] Optionally, when the communication device is a second network device, it is used to implement Figures 8 to 15 The functions and optional implementations of the second network device in the illustrated embodiment.

[0166] See also Fig.17 , Fig.17 It is a structural diagram of another communication device provided in an embodiment of the present application. Fig.17 The communication device shown includes at least one processor 1701 and a memory 1702, and optionally, may further include a transceiver 1703. The specific connection medium between the processor 1701 and the memory 1702 is not limited in the embodiment of the present application. Fig.17 In the figure, the memory 1702 and the processor 1701 are connected via the bus 1704 as an example. The bus 1704 is represented by a thick line in the figure. The connection between other components is only for schematic illustration and is not limited to this. The bus 1704 can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig.17 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0167] The processor 1701 may have a data transceiver function and may communicate with other devices. Fig.17 In the device shown, an independent data transceiver module, such as transceiver 1703, may also be provided for transmitting and receiving data; when the processor 1701 communicates with other devices, data transmission may be performed through the transceiver 1703.

[0168] In one example, when the first network device uses Fig.17 When the form shown is Fig.17 The processor 1701 in the memory 1702 may call the computer execution instruction stored in the memory 1702 to make the first network device execute Figures 8 to 15 A method performed by the first network device in any embodiment.

[0169] In one example, when the second network device uses Fig.17 When the form shown is Fig.17 The processor 1701 in the memory 1702 may call the computer execution instruction stored in the memory 1702 to make the second network device execute Figures 8 to 15 A method performed by a second network device in any embodiment.

[0170] The present application also provides a communication system, which may include Figures 8 to 15 The first network device and at least one second network device in the embodiment may be specifically referred to the method embodiment described above.

[0171] The scheme described in the present application can be implemented in various ways. For example, these technologies can be implemented in a combination of hardware, software or hardware. For hardware implementation, the processing module for executing these technologies at a communication device (e.g., a base station, a terminal, a network entity or a chip) can be implemented in one or more general-purpose processors, digital signal processors (DSP), digital signal processing devices, application-specific integrated circuits (ASIC), programmable logic devices, field programmable gate arrays (FPGA), or other programmable logic devices, discrete gates 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 traditional 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.

[0172] It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0173] The present application also provides a computer-readable medium on which instructions are stored, and when the instructions are executed by a computer, the functions of any of the above method embodiments are implemented.

[0174] The present application also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.

[0175] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer 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 may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium may 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 integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0176] It is understandable that some optional features in the embodiments of the present application may be implemented independently in certain scenarios without relying on other features, such as the solution on which they are currently based, to solve corresponding technical problems and achieve corresponding effects, or may be combined with other features according to needs in certain scenarios. Accordingly, the devices provided in the embodiments of the present application may also realize these features or functions accordingly, which will not be elaborated here.

[0177] Those skilled in the art can also understand that the various illustrative logical blocks and steps listed in the embodiments of the present application can be implemented by electronic hardware, computer software, or a combination of the two. Whether such functions are implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art can use various methods to implement the functions for corresponding applications, but such implementation should not be understood as exceeding the scope of protection of the embodiments of the present application.

[0178] It is understood that the "embodiment" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, the various embodiments in the entire specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It is understood that in various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.

[0179] It can be understood that in the present application, "when", "if" and "if" all mean that the device will take corresponding actions under certain objective circumstances, but do not limit the time, nor do they require the device to make judgments when implementing it, nor do they mean that there are other limitations.

[0180] In this application, elements expressed in the singular are intended to mean "one or more" rather than "one and only one", unless otherwise specified. In this application, "at least one" is intended to mean "one or more", and "more than one" is intended to mean "two or more", unless otherwise specified.

[0181] In addition, the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can 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. A can be singular or plural, and B can be singular or plural.

[0182] The predefined in the present application may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0183] Those skilled in the art will appreciate that, for the sake of convenience and brevity of description, the specific working processes of the systems, devices and units described above may refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0184] The same or similar parts between the various embodiments in this application can refer to each other. In the various embodiments in this application, and the various implementation methods / implementation methods / implementation methods in each embodiment, if there is no special explanation and logical conflict, the terms and / or descriptions between different embodiments and the various implementation methods / implementation methods / implementation methods in each embodiment are consistent and can be referenced to each other. The technical features in different embodiments and the various implementation methods / implementation methods / implementation methods in each embodiment can be combined to form new embodiments, implementation methods, implementation methods, or implementation methods according to their inherent logical relationships. The above-described implementation methods of this application do not constitute a limitation on the scope of protection of this application.

[0185] The above description is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application.

Claims

1. An information processing method, characterized in that: Applied to a first network device or a chip in the first network device, the method comprising: Receive terminal information of at least one second network device, the terminal information including the number of terminals served by the at least one second network device, location information of the served terminals, and equivalent isotropic radiated power information; Based on the terminal information, determine the total uplink interference generated by the terminal served by the at least one second network device on the first network device.

2. The method according to claim 1, characterized in that The terminal information also includes frequency domain configuration information of uplink transmission of the at least one second network device, and determining, based on the terminal information, the total uplink interference generated by the terminal served by the at least one second network device on the first network device includes: Determine the antenna receiving gain based on the location information of the terminal served by the second network device; determine the uplink interference generated by the terminal served by the second network device to the first network device based on the equivalent isotropic radiated power information of the terminal served by the second network device, the antenna receiving gain and the frequency domain configuration information; Based on the uplink interference generated by the terminals served by the second network equipment on the first network equipment, a total uplink interference generated by the terminals served by the at least one second network equipment on the first network equipment is determined.

3. The method according to claim 1 or 2, characterized in that: The method further comprises: Based on the total uplink interference generated by the terminals served by the at least one second network device on the first network device, it is determined whether to perform interference coordination.

4. The method according to claim 3, characterized in that: If it is determined to perform the interference coordination, the method further includes: Determine a first area based on uplink interference respectively generated by the terminals served by the at least one second network device on the first network device, wherein the interference intensity of uplink interference generated by the terminals served by the second network device on the first network device in the first area is greater than a preset value; A beam weight of a receiving beam is determined, wherein a main lobe of the receiving beam points to other regions except the first region, or a null direction of the receiving beam points to the first region.

5. The method according to claim 3, characterized in that: If it is determined to perform the interference coordination, the method further includes: A frequency band for uplink transmission is configured, wherein the frequency band for uplink transmission does not overlap with a frequency band for uplink transmission of the at least one second network device.

6. The method according to any one of claims 1 to 5, characterized in that: The first network device is a satellite, and the at least one second network device is a network device within the coverage range or visible range of the satellite; The location information of the second network device is used as the location information of the terminal served by the second network device.

7. The method according to any one of claims 1 to 5, characterized in that: The first network device is a low earth orbit satellite, and the at least one second network device is a geostationary orbit satellite serving a geographical area within the coverage or visible range of the low earth orbit satellite; The location information of the terminals served by the second network device is the location information of the geographical area, and the terminals served by the second network device are the terminals served by the geostationary orbit satellite in the geographical area.

8. The method according to any one of claims 1 to 7, characterized in that: The equivalent isotropic radiated power information includes an average antenna gain of a terminal served by the second network device; the equivalent isotropic radiated power information also includes an average transmit power or transmit power statistics information of a terminal served by the second network device.

9. An information processing method, characterized in that: Applied to the second network device or the chip in the second network device, the method comprises: Sending terminal information, where the terminal information includes the number of terminals served by the second network device, location information of the served terminals, and equivalent isotropic radiated power information; The terminal information is used to determine uplink interference caused by the terminal served by the second network device to the first network device.

10. The method according to claim 9, characterized in that The terminal information also includes frequency domain configuration information of uplink transmission of the second network device.

11. The method according to claim 9 or 10, characterized in that: The first network device is a satellite, and the second network device is a network device within the coverage range or visible range of the satellite; The location information of the second network device is used as the location information of the terminal served by the second network device.

12. The method according to claim 9 or 10, characterized in that: The first network device is a low earth orbit satellite, and the second network device is a geostationary orbit satellite serving a geographical area within the coverage or visible range of the low earth orbit satellite; The location information of the terminals served by the second network device is the location information of the geographical area, and the terminals served by the second network device are the terminals served by the geostationary orbit satellite in the geographical area.

13. The method according to claim 12, characterized in that Before sending the terminal information, the method further includes: receiving ephemeris information from the low earth orbit satellite; Based on the ephemeris information, equivalent isotropically radiated power information of terminals served by the geostationary orbit satellite in the geographical area is determined.

14. The method according to any one of claims 9 to 13, characterized in that: The equivalent isotropic radiated power information includes an average antenna gain of a terminal served by the second network device, and the equivalent isotropic radiated power information also includes an average transmit power or transmit power statistics information of the terminal served by the second network device.

15. A communication system, characterized in that: The system comprises: An apparatus for performing the method of any one of claims 1 to 8; and At least one device for performing the method according to any one of claims 9 to 14.

16. A communication device, characterized in that: The method comprises one or more functional units, wherein the one or more functional units are used to execute the method according to any one of claims 1 to 8, or to execute the method according to any one of claims 9 to 14.

17. A communication device, characterized in that: The device comprises a processor, wherein the processor calls a computer program stored in a memory to enable the communication device to implement the method according to any one of claims 1 to 8, or implement the method according to any one of claims 9 to 14.

18. A communication device, characterized in that: The invention comprises a processor and an interface circuit, wherein the interface circuit is used to receive signals from other communication devices other than the communication device and transmit them to the processor or send signals from the processor to other communication devices other than the communication device, and the processor is used to implement the method according to any one of claims 1 to 8 through a logic circuit or executes code instructions, or is used to implement the method according to any one of claims 9 to 14.

19. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed, the method according to any one of claims 1 to 8 or the method according to any one of claims 9 to 14 is implemented.

Images