Power allocation method and device for satellite-to-ground communication network and base station power management center

Abstract

The present application provides a power allocation method, device and base station power management center for a satellite-to-ground communication network. Among them, the channel information of the current user to the base station segment of the satellite-to-ground communication network when the current user accesses the channel is obtained; when it is determined that the current user to the base station segment meets the safety communication conditions, the base station artificial auxiliary noise power is determined according to the channel information of the current user to the base station segment; the base station artificial auxiliary noise power is added to the current user to the base station segment; the channel information of the current base station to the satellite segment of the satellite-to-ground communication network is obtained; when it is determined that the current base station to the satellite segment meets the safety communication conditions, the base station legal signal transmission power of the base station to the satellite segment and the artificial auxiliary noise power allocated by the base station are determined according to the channel information of the current base station to the satellite segment, and the base station legal signal transmission power and artificial auxiliary noise power are added to the current base station to the satellite segment.

Description

Technical Field

[0001] The present invention relates to the technical field of communication network, and in particular to a power allocation method and device for a satellite-to-ground communication network and a base station power management center. Background Art

[0002] In the satellite-to-ground communication network, base stations or access points in remote areas access the core network via satellite, thereby providing economical and efficient communication access services to ground users. However, considering the wide-area coverage and open channel characteristics of the satellite-to-ground communication network, and the fact that the satellite-to-ground communication network carries a large amount of sensitive data and has extremely high security requirements, malicious user eavesdropping will result in high political and economic losses. Summary of the invention

[0003] The present application provides a power allocation method, device and base station power management center for a satellite-to-ground communication network, which can suppress eavesdropping by malicious users, increase uplink security capacity and improve communication security.

[0004] The present application provides a power allocation method for a satellite-to-ground communication network, comprising: obtaining channel information of a current user-to-base station segment of the satellite-to-ground communication network when a current user accesses a channel, the channel information of the current user-to-base station segment including a user uplink transmission power; determining a base station artificial auxiliary noise power according to the channel information of the current user-to-base station segment when it is determined that the current user-to-base station segment meets a safety communication condition; adding a base station artificial auxiliary noise power to the current user-to-base station segment, and performing optimal power allocation with the user uplink transmission power and the base station artificial auxiliary noise power; obtaining channel information of a current base station-to-satellite segment of the satellite-to-ground communication network; determining a base station legitimate signal transmission power of the base station-to-satellite segment and an artificial auxiliary noise power allocated by the base station according to the channel information of the current base station-to-satellite segment when it is determined that the current base station-to-satellite segment meets a safety communication condition; adding a base station legitimate signal transmission power and an artificial auxiliary noise power to the current base station-to-satellite segment, and performing optimal power allocation with the base station legitimate signal transmission power and the artificial auxiliary noise power.

[0005] Further, when it is determined that the segment from the current user to the base station meets the safety communication conditions, the base station artificial auxiliary noise power is determined according to the channel information from the current user to the base station, including: when it is determined that the segment from the current user to the base station meets the safety communication conditions, a first safety communication identifier is generated, and the base station artificial auxiliary noise power is determined according to the channel information from the current user to the base station, the first safety communication identifier is used to identify that the segment from the current user to the base station is in a safety communication state;

[0006] Adding the base station's legitimate signal transmission power and artificial auxiliary noise power in the current base station-to-satellite segment includes: adding the base station's legitimate signal transmission power and artificial auxiliary noise power in the current base station-to-satellite segment according to the first safety communication identifier.

[0007] Furthermore, the channel information of the current user-to-base station segment includes the channel information of the user transmission and the eavesdropper channel state information of the current user-to-base station segment; the initialization parameters of the satellite-to-ground communication network include the full-duplex self-interference information of the base station, the noise information of the base station receiving end, the initialization parameters of the user transmission and the maximum transmission power of the base station;

[0008] Determining that the current user to base station segment meets the safety communication conditions includes: determining the channel gain ratio auxiliary parameters of the current user to base station segment; under the constraint condition of maximizing the safety capacity of the current user to base station segment, determining that the current user to base station segment meets the safety communication conditions based on the channel gain ratio auxiliary parameters of the current user to base station segment.

[0009] Furthermore, auxiliary parameters of the channel gain ratio of the current user to the base station segment are determined, including: determining the channel gain factor based on the eavesdropper's channel state information, the channel information transmitted by the user, and the full-duplex self-interference of the base station; determining the transmission impact factor of the noise interference on the transmission based on the noise information of the base station receiving end, the channel information transmitted by the user and the initialization parameters of the user transmission; determining that the current user to the base station segment meets the safety communication conditions, including: determining that the current user to the base station segment meets the safety communication conditions based on the channel gain factor being greater than 1 and the maximum transmission power of the base station being greater than the transmission impact factor.

[0010] Furthermore, the eavesdropper channel state information includes the base station to eavesdropper channel state information of the current user to base station segment and the current user to eavesdropper channel state information of the current user to base station segment; according to the eavesdropper channel state information, the channel information transmitted by the user, and the base station full-duplex self-interference, the channel gain factor is determined, including:

[0011] Determine the ratio of the first channel gain of the base station to the eavesdropper and the base station self-interference channel according to the base station to the eavesdropper and the base station full-duplex self-interference information;

[0012] Determine the ratio of the second channel gain from the user to the base station and from the user to the eavesdropper according to the channel information transmitted by the user and the current channel state information from the user to the eavesdropper;

[0013] According to the noise information of the base station receiving end, the channel information of the user transmission and the initialization parameters of the user transmission, the transmission impact factor of the noise interference on the transmission is determined, including:

[0014] Determining a first ratio of the full-duplex self-interference of the base station to the user transmission according to the channel information of the full-duplex self-interference of the base station and the user transmission and the initialization parameter of the user transmission;

[0015] Determining a second ratio of the noise at the base station receiving end to the user transmission based on the noise information at the base station receiving end, the channel information of the user transmission, and the initialization parameter of the user transmission;

[0016] According to the fact that the channel gain factor is greater than 1 and the maximum transmission power of the base station is greater than the transmission impact factor, it is determined that the current user to base station segment meets the safe communication conditions, including:

[0017] Determine that the first channel gain ratio is greater than 1, the product of the first channel gain ratio and the second channel gain ratio is greater than 1, and the base station maximum transmit power is greater than the ratio of the first ratio adjusted by the second channel gain ratio to the adjusted second ratio.

[0018] Furthermore, based on the channel information of the current user to base station segment, the user uplink transmission power and the base station artificial auxiliary noise power of the current user to the base station are determined, including: determining the power auxiliary parameters of the current user to base station segment based on the channel gain ratio auxiliary parameters of the current user to base station segment; determining the base station artificial auxiliary noise power of the current user to base station segment based on the power auxiliary parameters of the current user to base station segment.

[0019] Further, when it is determined that the current base station-to-satellite segment meets the safety communication conditions, the base station legitimate signal transmission power of the base station-to-satellite segment and the artificial auxiliary noise power allocated by the base station are determined according to the channel information of the current base station-to-satellite segment, including:

[0020] When it is determined that the current base station-to-satellite segment meets the safety communication conditions, a second safety communication identifier is generated, and according to the channel information of the current base station-to-satellite segment, the base station legal signal transmission power and the artificial auxiliary noise power allocated by the base station of the base station-to-satellite segment are determined; the second safety communication identifier is used to identify that the current base station-to-satellite segment is in a safety communication state;

[0021] Adding the base station's legitimate signal transmission power and artificial auxiliary noise power in the current base station-to-satellite segment includes: adding the base station's legitimate signal transmission power and artificial auxiliary noise power in the current base station-to-satellite segment according to the second safety communication identifier.

[0022] Furthermore, determining that the current base station to satellite segment meets the safety communication conditions includes: determining the channel gain ratio auxiliary parameters of the current base station to satellite segment; under the constraint of maximizing the safety capacity of the current base station to satellite segment, determining that the current base station to satellite segment meets the safety communication conditions based on the channel gain ratio auxiliary parameters of the current base station to satellite segment.

[0023] Furthermore, the channel information of the current base station to satellite segment includes the current base station to satellite channel gain and the current base station to eavesdropper channel state information of the current base station to satellite segment; the initialization parameters of the satellite-to-ground communication network include the satellite receiving end noise information, the initialization parameters of the base station transmission and the satellite receiving end residual interference coefficient;

[0024] Determine the auxiliary parameters of the channel gain ratio from the current base station to the satellite segment, including:

[0025] Determine a ratio of a third channel gain between the current base station-to-satellite channel and the current base station-to-eavesdropper channel according to the current base station-to-satellite channel gain and the base station-to-eavesdropper channel state information of the current base station-to-satellite segment;

[0026] Determining a third ratio of noise to base station transmission based on satellite receiving end noise information, current base station to satellite channel gain, and base station transmission initialization parameters;

[0027] According to the auxiliary parameter of the channel gain ratio of the current base station to the satellite segment, it is determined that the current base station to the satellite segment meets the safety communication conditions, including:

[0028] Comparing the third ratio adjusted by the ratio of the third channel gain and the sum of the residual interference coefficients of the satellite receiving end is less than 1.

[0029] Furthermore, based on the channel information of the current base station to satellite segment, the base station legitimate signal transmission power of the base station to satellite segment and the artificial auxiliary noise power allocated by the base station are determined, including: determining the power auxiliary parameters of the current base station to satellite segment based on the channel gain ratio auxiliary parameters of the current base station to satellite segment; determining the base station legitimate signal transmission power and artificial auxiliary noise power of the base station to satellite segment based on the power auxiliary parameters of the current base station to satellite segment.

[0030] Furthermore, the power allocation method of the satellite-to-ground communication network also includes: when it is determined that the current user to base station segment does not meet the safety communication conditions, when a new current user accesses the channel or the current user accesses the channel again, returning to execute to obtain the channel information of the current user to the base station segment of the satellite-to-ground communication network when the current user accesses the channel.

[0031] Furthermore, the power allocation method of the satellite-to-earth communication network also includes: when it is determined that the current base station to satellite segment does not meet the safety communication conditions, when a new current user accesses the channel or the current user accesses the channel again, returning to execute to obtain the channel information of the current user to the base station segment of the satellite-to-earth communication network when the current user accesses the channel.

[0032] The present application provides a power distribution device for a satellite-to-earth communication network, comprising:

[0033] The information collection module of the current user to base station segment is used to obtain the channel information of the current user to base station segment of the satellite-to-ground communication network when the current user accesses the channel, and the channel information of the current user to base station segment includes the user uplink transmission power;

[0034] The power determination module of the current user-to-base station segment is used to determine the artificial auxiliary noise power of the base station according to the channel information of the current user-to-base station segment when it is determined that the current user-to-base station segment meets the safety communication conditions;

[0035] The power allocation module of the current user to base station section is used to add the base station artificial auxiliary noise power in the current user to base station section, and perform optimal power allocation with the user uplink transmission power and the base station artificial auxiliary noise power;

[0036] The information collection module of the current base station to satellite segment is used to obtain the channel information of the current base station to satellite segment of the satellite-to-earth communication network;

[0037] The power determination module of the current base station to satellite segment is used to determine the base station legitimate signal transmission power of the base station to the satellite segment and the artificial auxiliary noise power allocated by the base station according to the channel information of the current base station to the satellite segment when it is determined that the current base station to the satellite segment meets the safety communication conditions;

[0038] The power allocation module of the current base station to satellite segment is used to add the base station legal signal transmission power and artificial auxiliary noise power in the current base station to satellite segment, and perform optimal power allocation with the base station legal signal transmission power and artificial auxiliary noise power.

[0039] Furthermore, the power determination module of the current user to base station segment is specifically used to generate a first safety communication identifier when it is determined that the current user to base station segment meets the safety communication conditions, and determine the base station artificial auxiliary noise power according to the channel information of the current user to base station segment, and the first safety communication identifier is used to identify that the current user to base station segment is in a safety communication state;

[0040] The power allocation module of the current user-to-base station segment is specifically used to add the base station legal signal transmission power and artificial auxiliary noise power in the current base station-to-satellite segment according to the first safety communication identifier.

[0041] Furthermore, the channel information from the current user to the base station segment includes the channel information transmitted by the user and the eavesdropper channel state information from the current user to the base station segment;

[0042] The initialization parameters of the satellite-to-ground communication network include the base station full-duplex self-interference information, the noise information of the base station receiving end, the initialization parameters of the user transmission and the maximum transmission power of the base station;

[0043] The device also includes a first safety communication condition determination module, which is used to determine whether the current user-to-base station segment meets the safety communication condition, wherein the first safety communication condition determination module includes: a first channel gain ratio auxiliary parameter submodule and a first safety communication condition determination submodule;

[0044] A first channel gain ratio auxiliary parameter submodule, used to determine the channel gain ratio auxiliary parameter of the current user to base station segment;

[0045] The first safety communication condition determination submodule is used to determine whether the current user to base station segment meets the safety communication condition based on the channel gain ratio auxiliary parameter of the current user to base station segment under the constraint condition of maximizing the safety capacity of the current user to base station segment.

[0046] Furthermore, the first channel gain ratio auxiliary parameter submodule includes: a channel gain factor determination unit and a transmission impact factor determination unit

[0047] A channel gain factor determination unit, used to determine the channel gain factor according to the eavesdropper's channel state information, the user's transmitted channel information, and the base station's full-duplex self-interference;

[0048] A transmission impact factor determination unit, used to determine the transmission impact factor of the noise interference on the transmission according to the noise information of the base station receiving end, the channel information of the user transmission and the initialization parameter of the user transmission;

[0049] A first safety communication condition determination submodule, comprising a first safety communication condition determination unit;

[0050] The first safety communication condition determination unit is used to determine that the current user-to-base station segment meets the safety communication condition based on the channel gain factor being greater than 1 and the base station maximum transmission power being greater than the transmission impact factor.

[0051] Furthermore, the eavesdropper channel state information includes base station-to-eavesdropper channel state information in the current user-to-base station segment and current user-to-eavesdropper channel state information in the current user-to-base station segment;

[0052] The channel gain factor determination unit is specifically used to determine the ratio of the first channel gain of the base station to the eavesdropper and the base station self-interference channel according to the base station to the eavesdropper and the base station full-duplex self-interference information;

[0053] Determine the ratio of the second channel gain from the user to the base station and from the user to the eavesdropper according to the channel information transmitted by the user and the current channel state information from the user to the eavesdropper;

[0054] The transmission impact factor determination unit is specifically used to determine a first ratio of the full-duplex self-interference of the base station to the user transmission according to the full-duplex self-interference of the base station, the channel information of the user transmission, and the initialization parameter of the user transmission; and determine a second ratio of the noise of the base station receiving end to the user transmission according to the noise information of the base station receiving end, the channel information of the user transmission, and the initialization parameter of the user transmission;

[0055] The first safety communication condition determination unit is specifically used to determine that the ratio of the first channel gain is greater than 1, the product of the first channel gain ratio and the second channel gain ratio is greater than 1, and the maximum transmission power of the base station is greater than the ratio of the first ratio adjusted by the second channel gain ratio to the adjusted second ratio.

[0056] Furthermore, the power determination module for the current user to base station section is specifically used to determine the power auxiliary parameters of the current user to base station section based on the channel gain ratio auxiliary parameters of the current user to base station section; and determine the base station artificial auxiliary noise power of the current user to base station section based on the power auxiliary parameters of the current user to base station section.

[0057] Furthermore, the power determination module of the current base station to satellite segment is specifically used to generate a second safety communication identifier when it is determined that the current base station to satellite segment meets the safety communication conditions, and determine the base station legal signal transmission power of the base station to the satellite segment and the artificial auxiliary noise power allocated by the base station according to the channel information of the current base station to the satellite segment; the second safety communication identifier is used to identify that the current base station to the satellite segment is in a safety communication state;

[0058] The power allocation module of the current base station to satellite segment is specifically used to add the base station legal signal transmission power and artificial auxiliary noise power in the current base station to satellite segment according to the second safety communication identifier.

[0059] Furthermore, the device also includes a second safety communication condition determination module, which is used to determine whether the current base station to satellite segment meets the safety communication conditions, wherein the second safety communication condition determination module includes: a second channel gain ratio auxiliary parameter submodule and a second safety communication condition determination submodule; the second channel gain ratio auxiliary parameter submodule, which is used to determine the channel gain ratio auxiliary parameters of the current base station to satellite segment; the second safety communication condition determination submodule, which is used to determine that the current base station to satellite segment meets the safety communication conditions based on the channel gain ratio auxiliary parameters of the current base station to satellite segment under the constraint condition of maximizing the safety capacity of the current base station to satellite segment.

[0060] Furthermore, the channel information of the current base station to satellite segment includes the current base station to satellite channel gain and the current base station to eavesdropper channel state information of the current base station to satellite segment; the initialization parameters of the satellite-to-ground communication network include the satellite receiving end noise information, the initialization parameters of the base station transmission and the satellite receiving end residual interference coefficient;

[0061] The second channel gain ratio auxiliary parameter submodule is specifically used to determine the ratio of the third channel gain of the current base station to the satellite channel and the current base station to the eavesdropper channel according to the current base station to the satellite channel gain and the base station to the eavesdropper channel state information of the current base station to the satellite segment;

[0062] The second safety communication condition determination submodule is specifically used to determine a third ratio of noise to base station transmission based on the satellite receiving end noise information, the current base station to satellite channel gain and the initialization parameters of the base station transmission; the second safety communication condition determination submodule includes a second safety communication condition determination unit;

[0063] The second safety communication condition determination unit is used to compare the third ratio adjusted by the third channel gain ratio with the sum of the residual interference coefficient of the satellite receiving end, which is less than 1.

[0064] Furthermore, the second safety communication condition determination unit is specifically used to determine the power auxiliary parameters of the current base station to satellite segment based on the channel gain ratio auxiliary parameters of the current base station to satellite segment; and determine the base station legitimate signal transmission power and artificial auxiliary noise power of the base station to satellite segment based on the power auxiliary parameters of the current base station to satellite segment.

[0065] The present application provides a computer-readable storage medium on which computer instructions are stored. When the instructions are executed by a processor, any of the above methods is implemented.

[0066] Furthermore, the power allocation method of the satellite-to-earth communication network of the present application, when the two sections from the current user to the base station section and the current base station to the satellite section meet the safety communication conditions respectively, adds the base station artificial auxiliary noise power to the current user to the base station section to achieve the optimal power allocation of this section, and adds the base station legitimate signal transmission power and artificial auxiliary noise power to the current base station to the satellite section to achieve the optimal power allocation of this section, and finally achieves the optimal power allocation of the two sections, which can suppress malicious users from eavesdropping, improve the uplink safety transmission capacity, and facilitate the safe transmission of information. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] Figure 1 Shown is a system schematic diagram of a satellite-to-earth communication network provided in an embodiment of the present application;

[0068] Figure 2 The figure is a flow chart of a power allocation method for a satellite-to-earth communication network provided in an embodiment of the present application;

[0069] Figure 3 The figure is a flow chart of a power allocation method for a satellite-to-ground communication network from a current user to a base station segment provided by an embodiment of the present application;

[0070] Figure 4 The figure is a flow chart of a power allocation method for a satellite-to-ground communication network from a current base station to a satellite segment provided by an embodiment of the present application;

[0071] Figure 5 The figure shows a schematic diagram of uplink safety capacity performance of a satellite-to-earth communication network provided in an embodiment of the present application;

[0072] Figure 6 Shown is a module schematic diagram of a power distribution device for a satellite-to-earth communication network provided in an embodiment of the present application;

[0073] Figure 7 The figure shows a module block diagram of a base station power management center provided in an embodiment of the present application. DETAILED DESCRIPTION

[0074] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with one or more embodiments of the present specification. Instead, they are merely examples of devices and methods consistent with some aspects of one or more embodiments of the present specification as detailed in the appended claims.

[0075] It should be noted that: in other embodiments, the steps of the corresponding method are not necessarily performed in the order shown and described in this specification. In some other embodiments, the steps included in the method may be more or less than those described in this specification. In addition, a single step described in this specification may be decomposed into multiple steps for description in other embodiments; and multiple steps described in this specification may be combined into a single step for description in other embodiments.

[0076] In order to effectively suppress malicious user eavesdropping and achieve secure transmission, an embodiment of the present application provides a power allocation method for a satellite-to-earth communication network.

[0077] Among them, by obtaining the channel information of the current user to the base station segment of the satellite-to-ground communication network when the current user accesses the channel, when it is determined that the current user to the base station segment meets the safety communication conditions, the base station artificial auxiliary noise power is determined according to the channel information of the current user to the base station segment; the base station artificial auxiliary noise power is added to the current user to the base station segment, and the optimal power allocation is performed with the user uplink transmission power and the base station artificial auxiliary noise power; the channel information of the current base station to the satellite segment of the satellite-to-ground communication network is obtained; when it is determined that the current base station to the satellite segment meets the safety communication conditions, the base station legitimate signal transmission power of the base station to the satellite segment and the artificial auxiliary noise power allocated by the base station are determined according to the channel information of the current base station to the satellite segment; the base station legitimate signal transmission power and the artificial auxiliary noise power are added to the current base station to the satellite segment, and the optimal power allocation is performed with the base station legitimate signal transmission power and the artificial auxiliary noise power.

[0078] In the embodiment of the present application, when the two sections of the current user to base station section and the current base station to satellite section meet the safety communication conditions respectively, the base station artificial auxiliary noise power is added to the current user to base station section to achieve the optimal power allocation of this section, which can effectively suppress the malicious user eavesdropping from the current user to base station section, improve the communication security of the current user to base station section, and facilitate the safe transmission of information. In addition, the base station legitimate signal transmission power and artificial auxiliary noise power are added to the current base station to satellite section to achieve the optimal power allocation of this section, which can effectively suppress the malicious user eavesdropping from the current base station to satellite section, improve the communication security of the current base station to satellite section, and facilitate the safe transmission of information.

[0079] Furthermore, since the satellite-to-ground communication network includes two sections, namely the section from the current user to the base station and the section from the current base station to the satellite, from the perspective of optimal safety and energy efficiency, the designed two-section optimal power allocation can improve the overall safety and energy efficiency of the satellite-to-ground communication network and is conducive to the safe transmission of information.

[0080] Figure 1 Shown is a system schematic diagram of a satellite-to-earth communication network provided in an embodiment of the present application.

[0081] like Figure 1 As shown, the satellite-to-earth communication network includes a ground segment and a space segment. The ground segment includes users, base stations, and ground stations, and the space segment includes several satellites.

[0082] The above-mentioned user is connected to the base station whose coverage range includes it and the satellite to which it belongs to form a communication link. The satellite to which it belongs refers to the satellite whose communication beam range selected by the base station to access can cover the base station. When the user has data that needs to be transmitted uplink, it first selects a base station that covers it to establish a communication link. This link is the current user to base station segment. The base station then selects a satellite whose communication beam covers it to access and establish a communication link. This link is the current base station to satellite segment.

[0083] There are inter-satellite links between several satellites in the space segment of the satellite-to-ground communication network to transmit information, and finally transmit it to the ground station, thereby delivering the user's uplink transmission data to the core network.

[0084] refer to Figure 1 There may be eavesdropping from malicious users in the section from the current user to the base station and the section from the current base station to the satellite. The system suppresses eavesdropping by adding artificial auxiliary noise to the section from the current user to the base station and the section from the current base station to the satellite, and manages power allocation through the base station power management center.

[0085] In some embodiments, the execution subject of the power allocation method for the satellite-to-ground communication network in the embodiments of the present application may be, but is not limited to, a base station power management center. The power allocation method for the satellite-to-ground communication network is described in detail below.

[0086] Figure 2 The figure is a flow chart of a power allocation method for a satellite-to-earth communication network provided in an embodiment of the present application.

[0087] In such Figure 2 In the illustrated embodiment, the power allocation method of the satellite-to-ground communication network may include but is not limited to steps 110a to 130b:

[0088] Step 110a, obtaining the channel information of the current user to the base station segment of the satellite-to-ground communication network when the current user accesses the channel, and the channel information of the current user to the base station segment includes the user uplink transmission power. The channel information of the embodiment of the present application is the real-time channel information of the current communication. In this way, the channel changes in real time, the channel information is obtained in real time, and the power is allocated in real time, thereby improving the real-time security of the channel.

[0089] The above-mentioned current user may refer to one user, or may refer to multiple users. Regardless of whether it is an old user reconnecting after a disconnection or a new user accessing for the first time, as long as it is any user accessing the channel, it falls within the protection scope of the embodiments of the present application.

[0090] In some embodiments, the current user-to-base station segment is an uplink communication link established between the user and the communication base station covering the user, and the base station adopts full-duplex mode, while collecting legitimate signals uploaded by the user and transmitting artificial auxiliary noise.

[0091] Step 120a, when it is determined that the current user-to-base station segment meets the safety communication conditions, the base station artificial auxiliary noise power is determined according to the channel information of the current user-to-base station segment.

[0092] Step 130a, adding the base station artificial auxiliary noise power in the current user-to-base station segment, and performing optimal power allocation for the user uplink transmission power and the base station artificial auxiliary noise power.

[0093] Step 110b, obtaining the channel information of the current base station to satellite segment of the satellite-to-ground communication network.

[0094] In some embodiments, the current base station to satellite segment is an uplink communication link established between a base station to which a user is connected and a satellite covering it, under which the base station simultaneously transmits the received user legitimate signal and an added artificial auxiliary noise signal for suppressing eavesdropping.

[0095] Step 120b, when it is determined that the current base station to satellite segment meets the safety communication conditions, determine the base station legal signal transmission power of the base station to satellite segment and the artificial auxiliary noise power allocated by the base station according to the channel information of the current base station to satellite segment.

[0096] The above-mentioned current base station may refer to a base station that covers the current user and establishes a connection with the current user.

[0097] The above-mentioned channel information from the current user to the base station segment and the channel information from the current base station to the satellite segment can both be channel information of the satellite-to-ground communication network, and are also necessary information for safe transmission power allocation. The channel information of the satellite-to-ground communication network can include, but is not limited to, the user-to-base station channel gain. Base station to satellite channel gain Current user-to-base station segment user-to-eavesdropper channel state information Channel status information from the current user to the base station and from the base station to the eavesdropper Current base station to satellite segment base station to eavesdropper channel status information In this embodiment, the channel information of the satellite-to-ground communication network is obtained through pilot signals.

[0098] Step 130b, adds the base station's legitimate signal transmission power and artificial auxiliary noise power to the current base station-to-satellite segment, performs optimal power allocation with the base station's legitimate signal transmission power and artificial auxiliary noise power, and ultimately achieves optimal power allocation from the current user to the base station segment and from the current base station to the satellite segment.

[0099] In such Figure 2 In the first embodiment shown, the method of the embodiment of the present application can sequentially perform step 110a, step 120a, step 130a, step 110b, step 120b and step 130b.

[0100] Furthermore, after the current user accesses the channel, the real-time channel information from the current user to the base station is obtained, and after the optimal power allocation from the current user to the base station is determined, the base station can collect the legal signal sent by the current user. After the legal signal can reach the base station, when the base station communicates with the satellite, the real-time channel information from the current base station to the satellite is obtained, and after the optimal power allocation from the current base station to the satellite is determined, the base station can forward the legal signal sent by the current user.

[0101] exist Figure 2 In the illustrated embodiment, since the channel state is changing, when the current user accesses the channel, real-time channel information can be obtained through the current user to the base station segment, which improves the accuracy of channel information acquisition, and furthermore, the artificial auxiliary noise power of the base station can be obtained more accurately, so as to suppress malicious users eavesdropping in the satellite-to-ground communication network and maximize the uplink safety capacity of the current user to the base station segment. At the same time, when the current user accesses the channel, real-time channel information can be obtained through the current base station to the satellite segment, which improves the accuracy of acquisition from the current base station to the satellite segment, and furthermore, the artificial auxiliary noise power can be obtained more accurately, so as to ultimately suppress malicious users eavesdropping in the satellite-to-ground communication network and maximize the uplink safety capacity of the current base station to the satellite segment.

[0102] Of course, the above Figure 2 The serial numbers of step 110a, step 120a, step 130a, step 110b, step 120b and step 130b in the above do not limit the order of the steps, and any embodiment that can use the above steps 110a to 130b belongs to the protection scope of the embodiments of the present application. The examples are as follows:

[0103] In the other second embodiment similar to Figure 2 The embodiment shown, compared to Figure 2 In the embodiment shown, in other second embodiments, step 110a and step 110b can be executed in parallel, step 120a and step 120b can be executed in parallel, and step 130a and step 130b can be executed in parallel. In this way, the base station artificial auxiliary noise power and the artificial auxiliary noise power can be quickly obtained in parallel, the processing efficiency is improved, and the suppression capability of malicious user eavesdropping in the satellite-to-ground communication network is improved to a certain extent.

[0104] In other third embodiments similar to Figure 2 The embodiment shown, compared to Figure 2In the embodiment shown, in another third embodiment, the three steps of step 110a, step 120a and step 130a can also be performed after the three steps of step 110b, step 120b and step 130b, which is not limited here. In this way, malicious users eavesdropping in the satellite-to-ground communication network is suppressed to a certain extent.

[0105] Figure 3 The figure is a flow chart of a power allocation method for a satellite-to-ground communication network from a current user to a base station segment provided in an embodiment of the present application.

[0106] like Figure 3 As shown, combined with the above Figure 2 The above step 120a may further include the following step 210a, the above step 130a may further include the following step 310a, and the method further includes step 100a, step 111a and step 410a. The detailed description is as follows:

[0107] Step 100a, initialize the parameters of the satellite-to-ground communication network to obtain the initialization parameters of the satellite-to-ground communication network. The initialization parameters of the satellite-to-ground communication network may include but are not limited to the maximum transmit power of the user, the maximum transmit power of the base station, the signal bandwidth of the current user-to-base station segment, the signal bandwidth of the current base station-to-satellite segment, the noise power spectrum density of the base station receiving end, the residual interference coefficient of the satellite receiving end, the full-duplex self-interference channel gain of the base station, the number of base stations served by each satellite M, the initialization of the communication identifier that meets the safety communication conditions of the current user-to-base station segment, and the initialization of the communication identifier that meets the safety communication conditions of the current base station-to-satellite segment.

[0108] The above-mentioned channel information from the current user to the base station segment includes the channel information transmitted by the user and the eavesdropper channel state information from the current user to the base station segment.

[0109] The initialization parameters of the satellite-to-ground communication network include the base station full-duplex self-interference information, the noise information of the base station receiving end, the initialization parameters of the user transmission and the maximum transmission power of the base station, wherein the base station full-duplex self-interference information may include the noise power spectrum density of the base station receiving end and the base station full-duplex self-interference coefficient b ρ.

[0110] Step 111a, determining whether the current user-to-base station segment meets the secure communication conditions.

[0111] The above step 111a may further include the following (1) and (2):

[0112] (1) Determine the channel gain ratio auxiliary parameter of the current user to base station segment. (2) Under the constraint condition of maximizing the safe capacity of the current user to base station segment, determine whether the current user to base station segment meets the safe communication conditions based on the channel gain ratio auxiliary parameter of the current user to base station segment. In this way, the channel gain is used to reflect the transmission capacity of the channel. The greater the gain, the more conducive to transmission; interference and user transmission are used to reflect the transmission capacity, which is conducive to effective transmission.

[0113] The calculation formula for the uplink safety capacity from the current user to the base station is:

[0114]

[0115] Some parameters and functions in this formula are defined as follows:

[0116]

[0117]

[0118] The uplink safety capacity of the current user to the base station is guaranteed by the constraint condition of maximizing the safety capacity of the current user to the base station. Greater than 0, satisfied This formula can be rewritten as:

[0119] in, It represents the ratio of the channel gain from the base station to the eavesdropper and the base station self-interference channel. It means that the eavesdropper experiences greater artificial auxiliary noise interference than the legitimate receiver. That is, under the same artificial noise power, the eavesdropper is more interfered. At this time, adding artificial auxiliary noise makes sense. Therefore, it is usually necessary to set

[0120] The above step (1) may include but is not limited to the first step and the second step.

[0121] In the first step, the channel gain factor is determined based on the eavesdropper's channel state information, the user's transmitted channel information, and the base station's full-duplex self-interference.

[0122] The eavesdropper channel state information includes the base station-to-eavesdropper channel state information of the current user-to-base station segment and the current user-to-eavesdropper channel state information of the current user-to-base station segment;

[0123] The first step may include but is not limited to 1) and 2): 1) determining the ratio of the first channel gain of the base station to the eavesdropper and the base station self-interference channel based on the base station to the eavesdropper and the base station full-duplex self-interference information.

[0124] Specifically, the ratio of the first channel gain is calculated using the following formula:

[0125]

[0126] 2) According to the channel information transmitted by the user and the current channel state information from the user to the eavesdropper, the ratio of the second channel gain from the user to the base station and from the user to the eavesdropper is determined.

[0127] Specifically, the ratio of the second channel gain is calculated using the following formula:

[0128] The second step is to determine the transmission impact factor of the noise interference on the transmission based on the noise information of the base station receiving end, the channel information of the user transmission and the initialization parameters of the user transmission.

[0129] The second step may include, but is not limited to, 3) and 4):

[0130] 3) According to the base station full-duplex self-interference and the channel information of the user transmission and the initialization parameter of the user transmission, determine the first ratio of the base station full-duplex self-interference and the user transmission. The channel information of the user transmission may include the base station full-duplex self-interference coefficient and the base station full-duplex self-interference channel gain, the initialization parameter of the user transmission includes the user maximum transmit power, and the channel information of the user transmission includes the user to base station channel gain.

[0131] Specifically, the first ratio is calculated using the following formula: Among them, ρ b is the base station full-duplex self-interference coefficient, is the base station full-duplex self-interference channel gain, P u,max is the maximum transmit power of the user, is the channel gain from user to base station.

[0132] 4) Determine a second ratio of the noise at the base station receiving end to the user transmission based on the noise information at the base station receiving end, the channel information of the user transmission, and the initialization parameters of the user transmission. The channel information of the user transmission includes the current base station to satellite channel gain, and the initialization parameters of the user transmission may include the current user to base station signal bandwidth, the noise power spectrum density at the base station receiving end, and the maximum transmission power of the user.

[0133] Specifically, the second ratio is calculated using the following formula:

[0134] Among them, B1 is the signal bandwidth from the current user to the base station, and u is the first letter of the current user user, indicating the user side.

[0135] Next, the step (2) above may include, but is not limited to, a third step, determining whether the current user-to-base station segment meets the safety communication condition based on whether the channel gain factor is greater than 1 and whether the base station maximum transmission power is greater than the transmission impact factor. In this way, the channel gain factor is as large as possible and the transmission impact factor is as small as possible.

[0136] The above third step may further include 5) comparing whether the ratio of the first channel gain is greater than 1, whether the product of the ratio of the first channel gain and the ratio of the second channel gain is greater than 1, and whether the maximum transmission power of the base station is greater than the ratio of the first ratio adjusted by the second channel gain ratio and the adjusted second ratio, so as to determine whether the current user to base station segment meets the safety communication conditions.

[0137] The adjusted second ratio is obtained by adjusting the second ratio using the product of the first channel gain ratio and the second channel gain ratio. For detailed description, please refer to c) below.

[0138] When the ratio of the first channel gain is not greater than 1, the product of the ratio of the first channel gain and the ratio of the second channel gain is not greater than 1, or the maximum transmission power of the base station is not greater than the ratio of the first ratio adjusted by the second channel gain ratio and the adjusted second ratio, it is determined that the current user to base station segment does not meet the safety communication conditions.

[0139] When the ratio of the first channel gain is greater than 1, the product of the ratio of the first channel gain and the ratio of the second channel gain is greater than 1, and the maximum transmission power of the base station is greater than the ratio of the first ratio adjusted by the second channel gain ratio and the adjusted second ratio, it is determined that the current user to base station segment meets the safety communication conditions.

[0140] The above-mentioned first channel gain ratio is greater than 1, the product of the first channel gain ratio and the second channel gain ratio is greater than 1, and the base station maximum transmit power is greater than the ratio of the first ratio adjusted by the second channel gain ratio to the adjusted second ratio, which can be specifically: a), b) c)

[0141]

[0142] If the three conditions a), b), and c) are all met, it is determined that the current user-to-base station segment meets the secure communication conditions, and the following step 210a is continued.

[0143] Step 210a, when it is determined that the current user to base station segment meets the safety communication conditions, a first safety communication identifier is generated, and the base station artificial auxiliary noise power is determined based on the channel information of the current user to the base station segment. The first safety communication identifier is used to identify that the current user to the base station segment is in a safe communication state.

[0144] The first safety communication identifier may include, but is not limited to, a first safety communication label FLAG1 or other codes. Of course, the first safety communication label FLAG1 may include, but is not limited to, a single or a combination of letters, words, and numbers.

[0145] The above step 210a of generating the first secure communication identifier may be implemented through various embodiments.

[0146] In one embodiment of generating the first safety communication identifier in step 210a, the communication identifier may be, but is not limited to, set to the first safety communication identifier. Exemplarily, during initialization, the tag FLAG1 indicating whether the safety communication condition is met is set to 0. If the current user-to-base station segment meets the safety communication condition, the tag FLAG1 is set to 1.

[0147] In another embodiment of generating the first safety communication identifier in 210a, a safety communication identifier related to the current base station to satellite segment that meets the safety communication condition can be generated. Of course, other embodiments can be implemented, all of which belong to the protection scope of the embodiments of the present application, and are not listed one by one here.

[0148] The above-mentioned step 210a determines the artificial auxiliary noise power of the base station according to the channel information of the current user to the base station segment, which may include steps 1 and 2. 1. Determine the power auxiliary parameter of the current user to the base station segment based on the channel gain ratio auxiliary parameter of the current user to the base station segment.

[0149] Specifically, the following formula is used to calculate the power auxiliary parameter of the current user to base station segment:

[0150] in

[0151]

[0152] 2. According to the power auxiliary parameters of the current user to base station segment, determine the base station artificial auxiliary noise power of the current user to base station segment.

[0153] Specifically, the following formula is used to calculate the base station artificial auxiliary noise power in the current user-to-base station segment:

[0154]

[0155] Step 310a, according to the first safety communication identifier, add the base station legitimate signal transmission power and artificial auxiliary noise power in the current base station to satellite segment. In this way, by using the first safety communication identifier, it is helpful to quickly determine that the current base station to satellite segment meets the safety communication conditions, improve the efficiency of obtaining the base station artificial auxiliary noise power, and suppress malicious user eavesdropping in the satellite-to-ground communication network in a more efficient way, and maximize the uplink safety capacity of the current user to the base station segment.

[0156] Step 410a, when it is determined that the section from the current user to the base station does not meet the safety communication conditions, when a new current user accesses the channel or the current user accesses the channel again, the channel information of the section from the current user to the base station in the satellite-to-ground communication network when the current user accesses the channel is returned to be obtained. In this way, when it is determined that the section from the current user to the base station does not meet the safety communication conditions, the channel can be switched for the new current user or the current user to access again, which can facilitate the new current user or the current user to access again and improve the efficiency of channel use.

[0157] Step 410a may further include initializing the communication identifier of the current user-to-base station segment when it is determined that the current user-to-base station segment does not meet the safety communication condition. Exemplarily, the label FLAG1 indicating whether the safety communication condition is met is set to 0.

[0158] In some other embodiments, when it is determined that the current user-to-base station segment does not meet the security communication conditions, the communication process of the current user is terminated.

[0159] Figure 4 The figure is a flow chart of the power allocation method of the current base station to satellite segment satellite-to-ground communication network provided by an embodiment of the present application.

[0160] like Figure 4 As shown, combined with the above Figure 2 The above step 120b may further include the following step 210b, the above step 130b may further include the following step 310b, and the method further includes step 100b, step 111b and step 410b. The detailed description is as follows:

[0161] Step 100b, initializing parameters of the satellite-to-ground communication network to obtain initialization parameters of the satellite-to-ground communication network.

[0162] Step 111b, determining whether the current base station to satellite segment meets the safety communication conditions.

[0163] The above step 111b may further include the following: <1> and <2> :

[0164] <1> , determine the auxiliary parameters of the channel gain ratio from the current base station to the satellite segment. <2> , under the constraint condition of maximizing the safety capacity of the current base station to satellite segment, determine whether the current base station to satellite segment meets the safety communication conditions based on the channel gain ratio auxiliary parameters of the current base station to satellite segment.

[0165] The calculation formula for the above-mentioned current uplink safety capacity from the base station to the satellite segment is:

[0166]

[0167] Some of the parameters are It represents the noise power spectrum density at the satellite receiving end in the base station-satellite segment.

[0168] The uplink safety capacity of the current base station to satellite segment is guaranteed by the constraint condition of maximizing the safety capacity of the current base station to satellite segment.

[0169] Among them, the above <1> The steps may include but are not limited to the first step and the second step.

[0170] The channel information of the current base station to satellite segment includes the current base station to satellite channel gain and the current base station to eavesdropper channel state information of the current base station to satellite segment; the initialization parameters of the satellite-to-ground communication network include the satellite receiving end noise information, the initialization parameters of the base station transmission and the satellite receiving end residual interference coefficient.

[0171] The first step may include, but is not limited to, 1> and 2>:

[0172] 1>, according to the current base station to satellite channel gain and the base station to eavesdropper channel state information of the current base station to satellite segment, determine the ratio of the third channel gain of the current base station to satellite channel and the current base station to eavesdropper channel.

[0173] Specifically, the ratio of the third channel gain is calculated using the following formula: in, is the base station to satellite channel gain, is the maximum security capacity of the channel state information from the current base station to satellite segment to the eavesdropper, s is the first letter of satellite, indicating the satellite side, bs means base station to satellite, e is the first letter of eavesdropper, indicating the eavesdropper, and bse is the base station to eavesdropper in the current base station to satellite segment.

[0174] 2>, according to the satellite receiving end noise information, the current base station to satellite channel gain and the initialization parameters of the base station transmission, determine the third ratio of noise to base station transmission. Wherein, the satellite receiving end noise information may include the satellite receiving end noise power spectrum density. The initialization parameters of the base station transmission include the maximum transmission power of the base station.

[0175] Specifically, the third ratio is calculated using the following formula:

[0176] Among them, B2 is the current base station to satellite signal bandwidth, P b,max is the maximum transmission power of the base station, and b is the first letter of base station, indicating the base station side.

[0177] Above <2> It can but is limited to include 3>, comparing whether the sum of the third ratio adjusted by the third channel gain ratio and the residual interference coefficient of the satellite receiving end is less than 1, so as to determine whether the current base station to satellite segment meets the safety communication conditions.

[0178] When the sum of the third ratio adjusted by the third channel gain ratio and the residual interference coefficient of the satellite receiving end is not less than 1, it is determined that the current base station to satellite segment does not meet the safety communication conditions.

[0179] When the sum of the third ratio adjusted by the third channel gain ratio and the residual interference coefficient of the satellite receiving end is less than 1, it is determined that the current base station to satellite segment meets the safety communication conditions.

[0180] The sum of the third ratio adjusted by the third channel gain ratio and the residual interference coefficient of the satellite receiving end is less than 1 and can be specifically Among them, ρ s is the residual interference coefficient of the satellite receiving end. If it is determined that the current base station to satellite segment meets the safety communication condition, then continue to execute the following step 210b.

[0181] Step 210b, when it is determined that the current base station to satellite segment meets the safety communication conditions, a second safety communication identifier is generated, and based on the channel information of the current base station to satellite segment, the base station's legitimate signal transmission power and the artificial auxiliary noise power allocated by the base station from the base station to the satellite segment are determined; the second safety communication identifier is used to identify that the current base station to satellite segment is in a safe communication state.

[0182] The second safety communication mark is similar to the first safety communication mark, and the second safety communication mark may include but is not limited to a second safety communication label FLAG2 or other codes. Of course, the second safety communication label FLAG2 may include but is not limited to a single or a combination of letters, words and numbers.

[0183] The above step 210b of generating the second secure communication identifier may be implemented through various embodiments.

[0184] In one embodiment of generating the second safety communication identifier in step 210b, generating the second safety communication identifier may include, but is not limited to, setting the communication identifier to the second safety communication identifier. Exemplarily, during initialization, the tag FLAG2 indicating whether the safety communication condition is met is set to 0. When the current base station to satellite segment meets the safety communication condition, the tag FLAG2 is set to 1.

[0185] In another embodiment of generating the second safety communication identifier in 210b above, a safety communication identifier related to the current base station to satellite segment that meets the safety communication conditions can be generated. Of course, other embodiments can be implemented, all of which belong to the protection scope of the embodiments of the present application, and are not listed one by one here.

[0186] In the above 210b, according to the channel information of the current base station to satellite segment, determining the base station legitimate signal transmission power and the artificial auxiliary noise power allocated by the base station from the base station to the satellite segment may include but is not limited to two steps 1 and 2. Step 1, according to the channel gain ratio auxiliary parameter of the current base station to satellite segment, determine the power auxiliary parameter of the current base station to satellite segment.

[0187] Specifically, the following formula is used to calculate the power auxiliary parameters of the current base station to satellite segment:

[0188]

[0189] Step 2: Determine the base station legitimate signal transmission power and artificial auxiliary noise power of the base station to satellite segment based on the current power auxiliary parameters of the base station to satellite segment.

[0190] Specifically, the following formula is used to calculate the base station legal signal transmission power from the base station to the satellite segment:

[0191]

[0192] Specifically, the following formula is used to calculate the artificial auxiliary noise power:

[0193]

[0194] Step 310b, according to the second safety communication identifier, add the base station legitimate signal transmission power and artificial auxiliary noise power in the current base station to satellite segment. In this way, by using the second safety communication identifier, it is helpful to quickly determine that the current base station to satellite segment meets the safety communication conditions, improve the efficiency of obtaining artificial auxiliary noise power, suppress malicious users in the satellite-to-earth communication network from eavesdropping in a more efficient way, and maximize the uplink safety capacity of the current base station to satellite segment.

[0195] Step 410b, when it is determined that the current base station to satellite segment does not meet the safety communication conditions, when a new current user accesses the channel or the current user accesses the channel again, the channel information of the current user to the base station segment of the satellite-to-ground communication network when the current user accesses the channel is returned to be obtained. In this way, when it is determined that the current base station to satellite segment does not meet the safety communication conditions, the channel can be switched for the new current user or the current user to access again, which can facilitate the new current user or the current user to access again, and can also improve the efficiency of channel use.

[0196] The above step 410b may further include, but is not limited to, initializing the communication identifier of the current base station to satellite segment when it is determined that the current base station to satellite segment does not meet the safety communication condition. Exemplarily, setting the label FLAG2 indicating whether the safety communication condition is met to 0.

[0197] In some other embodiments, when it is determined that the current base station to satellite segment does not meet the safety communication conditions, the communication process of the current user is terminated.

[0198] Based on the above-mentioned base station power management center, the base station is divided into the current user to base station section and the current base station to satellite section. The base station artificial auxiliary noise is increased for the power corresponding to the current user to base station section to suppress malicious user eavesdropping, and the artificial auxiliary noise is increased for the power corresponding to the current base station to satellite section to suppress malicious user eavesdropping; if FLAG1 and FLAG2 are both 1, in the current user to base station section, the user's uplink transmission power is increased according to the user's maximum transmission power. and the artificial auxiliary noise power of the base station added by the base station Perform optimal power allocation;

[0199] And, in the current base station to satellite segment, according to the legal signal transmission power allocated by the base station and the artificial auxiliary noise power allocated by the base station Execute optimal power allocation, and combine the above two stages to perform optimal uplink power allocation of the satellite-to-ground communication network to optimize the security performance of the satellite-to-ground communication network. Otherwise, it is fed back that the current user cannot perform secure communication transmission and there is no optimal uplink power allocation solution.

[0200] Figure 5 Shown is a schematic diagram of uplink safety capacity performance of a satellite-to-earth communication network provided in an embodiment of the present application.

[0201] Combination Figure 1 and Figure 5 As shown, Figure 1 The satellites in the system are deployed in an orbit of 500 km, the ground network bandwidth is B1 = 10 MHz, and the noise power spectral density is The base station to satellite uplink uses the Ka band with a bandwidth of B2 = 100 MHz. The ground channel uses the Rayleigh channel model, the satellite channel uses the Rice channel model, and the maximum transmission power of the user and base station is P u,max =23dBm and P b,max =30dBm, the self-interference coefficient of the full-duplex mode in the uplink transmission from the user to the base station is set to ρ = -110dB, and the residual interference coefficient from the base station to the satellite is assumed to be ρ s =0.01, the distance between the user and the base station is set to 50 meters. The angle between the user-to-base station link and the eavesdropper-to-base station link is 30°, the eavesdropping channel estimation deviation bound is 0.2 compared to the path loss, and the number of base stations served by a single satellite is 100 to 500. Figure 5It can be seen that the power allocation method proposed in the embodiment of the present application can effectively improve the safety capacity performance of the satellite-to-ground communication network, and at least increase the average safety capacity by 242% compared with the case where artificial auxiliary noise is not used, and increase the average safety capacity by 6.6% to 31.2% compared with the current maximum power of the user to base station segment and the current average power allocation strategy of the base station to the satellite segment.

[0202] Figure 6 The figure shows a schematic diagram of a module of a power distribution device for a satellite-to-ground communication network provided in an embodiment of the present application. The power distribution device for the satellite-to-ground communication network may include the following modules:

[0203] The information collection module 61 of the current user to base station segment is used to obtain the channel information of the current user to base station segment of the satellite-to-ground communication network when the current user accesses the channel, and the channel information of the current user to base station segment includes the user uplink transmission power;

[0204] The power determination module 62 of the current user-to-base station segment is used to determine the base station artificial auxiliary noise power according to the channel information of the current user-to-base station segment when it is determined that the current user-to-base station segment meets the safety communication conditions;

[0205] The power allocation module 63 of the current user-to-base station segment is used to add the base station artificial auxiliary noise power in the current user-to-base station segment, and perform optimal power allocation with the user uplink transmission power and the base station artificial auxiliary noise power;

[0206] The current base station to satellite segment information collection module 64 is used to obtain the current base station to satellite segment channel information of the satellite-to-earth communication network;

[0207] The power determination module 65 of the current base station to satellite segment is used to determine the base station legitimate signal transmission power of the base station to the satellite segment and the artificial auxiliary noise power allocated by the base station according to the channel information of the current base station to the satellite segment when it is determined that the current base station to the satellite segment meets the safety communication conditions;

[0208] The power allocation module 66 of the current base station to satellite segment is used to add the base station legal signal transmission power and artificial auxiliary noise power in the current base station to satellite segment, and perform optimal power allocation with the base station legal signal transmission power and artificial auxiliary noise power.

[0209] In some embodiments, the power determination module 62 of the current user to base station segment is specifically used to generate a first safety communication identifier when it is determined that the current user to base station segment meets the safety communication conditions, and determine the base station artificial auxiliary noise power according to the channel information of the current user to base station segment, and the first safety communication identifier is used to identify that the current user to base station segment is in a safety communication state;

[0210] The power allocation module 63 for the current user-to-base station segment is specifically configured to add the base station legitimate signal transmission power and artificial auxiliary noise power in the current base station-to-satellite segment according to the first safety communication identifier.

[0211] In some embodiments, the channel information from the current user to the base station segment includes the channel information transmitted by the user and the eavesdropper channel state information from the current user to the base station segment;

[0212] The initialization parameters of the satellite-to-ground communication network include the base station full-duplex self-interference information, the noise information of the base station receiving end, the initialization parameters of the user transmission and the maximum transmission power of the base station;

[0213] The device also includes a first safety communication condition determination module, which is used to determine whether the current user-to-base station segment meets the safety communication condition, wherein the first safety communication condition determination module includes: a first channel gain ratio auxiliary parameter submodule and a first safety communication condition determination submodule;

[0214] A first channel gain ratio auxiliary parameter submodule, used to determine the channel gain ratio auxiliary parameter of the current user to base station segment;

[0215] The first safety communication condition determination submodule is used to determine whether the current user to base station segment meets the safety communication condition based on the channel gain ratio auxiliary parameter of the current user to base station segment under the constraint condition of maximizing the safety capacity of the current user to base station segment.

[0216] In some embodiments, the first channel gain ratio auxiliary parameter submodule includes: a channel gain factor determination unit and a transmission impact factor determination unit

[0217] A channel gain factor determination unit, used to determine the channel gain factor according to the eavesdropper's channel state information, the user's transmitted channel information, and the base station's full-duplex self-interference;

[0218] A transmission impact factor determination unit, used to determine the transmission impact factor of the noise interference on the transmission according to the noise information of the base station receiving end, the channel information of the user transmission and the initialization parameter of the user transmission;

[0219] A first safety communication condition determination submodule, comprising a first safety communication condition determination unit;

[0220] The first safety communication condition determination unit is used to determine that the current user-to-base station segment meets the safety communication condition based on the channel gain factor being greater than 1 and the base station maximum transmission power being greater than the transmission impact factor.

[0221] In some embodiments, the eavesdropper channel state information includes base station-to-eavesdropper channel state information of the current user-to-base station segment and current user-to-eavesdropper channel state information of the current user-to-base station segment;

[0222] The channel gain factor determination unit is specifically used to determine the ratio of the first channel gain of the base station to the eavesdropper and the base station self-interference channel according to the base station to the eavesdropper and the base station full-duplex self-interference information;

[0223] Determine the ratio of the second channel gain from the user to the base station and from the user to the eavesdropper according to the channel information transmitted by the user and the current channel state information from the user to the eavesdropper;

[0224] The transmission impact factor determination unit is specifically used to determine a first ratio of the full-duplex self-interference of the base station to the user transmission according to the full-duplex self-interference of the base station, the channel information of the user transmission, and the initialization parameter of the user transmission; and determine a second ratio of the noise of the base station receiving end to the user transmission according to the noise information of the base station receiving end, the channel information of the user transmission, and the initialization parameter of the user transmission;

[0225] The first safety communication condition determination unit is specifically used to determine that the ratio of the first channel gain is greater than 1, the product of the first channel gain ratio and the second channel gain ratio is greater than 1, and the maximum transmission power of the base station is greater than the ratio of the first ratio adjusted by the second channel gain ratio to the adjusted second ratio.

[0226] In some embodiments, the power determination module 62 for the current user to base station segment is specifically used to determine the power auxiliary parameters for the current user to base station segment based on the channel gain ratio auxiliary parameters for the current user to base station segment; and to determine the base station artificial auxiliary noise power for the current user to base station segment based on the power auxiliary parameters for the current user to base station segment.

[0227] In some embodiments, the power determination module 65 of the current base station to satellite segment is specifically used to generate a second safety communication identifier when it is determined that the current base station to satellite segment meets the safety communication conditions, and determine the base station legal signal transmission power of the base station to the satellite segment and the artificial auxiliary noise power allocated by the base station according to the channel information of the current base station to the satellite segment; the second safety communication identifier is used to identify that the current base station to the satellite segment is in a safety communication state;

[0228] The power allocation module 66 of the current base station to satellite segment is specifically used to add the base station legal signal transmission power and artificial auxiliary noise power in the current base station to satellite segment according to the second safety communication identifier.

[0229] In some embodiments, the apparatus further comprises a second safety communication condition determination module, configured to determine whether the current base station to satellite segment meets the safety communication condition, wherein the second safety communication condition determination module comprises: a second channel gain ratio auxiliary parameter submodule and a second safety communication condition determination submodule;

[0230] A second channel gain ratio auxiliary parameter submodule, used to determine the channel gain ratio auxiliary parameter of the current base station to satellite segment;

[0231] The second safety communication condition determination submodule is used to determine whether the current base station to satellite segment meets the safety communication conditions based on the channel gain ratio auxiliary parameter of the current base station to satellite segment under the constraint condition of maximizing the safety capacity of the current base station to satellite segment.

[0232] In some embodiments, the channel information of the current base station to satellite segment includes the current base station to satellite channel gain and the current base station to eavesdropper channel state information of the current base station to satellite segment; the initialization parameters of the satellite-to-ground communication network include the satellite receiving end noise information, the initialization parameters of the base station transmission and the satellite receiving end residual interference coefficient;

[0233] The second channel gain ratio auxiliary parameter submodule is specifically used to determine the ratio of the third channel gain of the current base station to the satellite channel and the current base station to the eavesdropper channel according to the current base station to the satellite channel gain and the base station to the eavesdropper channel state information of the current base station to the satellite segment;

[0234] The second safety communication condition determination submodule is specifically used to determine a third ratio of noise to base station transmission based on the satellite receiving end noise information, the current base station to satellite channel gain and the initialization parameters of the base station transmission; the second safety communication condition determination submodule includes a second safety communication condition determination unit;

[0235] The second safety communication condition determination unit is used to compare the third ratio adjusted by the third channel gain ratio with the sum of the residual interference coefficient of the satellite receiving end, which is less than 1.

[0236] In some embodiments, the second safety communication condition determination unit is specifically used to determine the power auxiliary parameters of the current base station to satellite segment based on the channel gain ratio auxiliary parameters of the current base station to satellite segment; and determine the base station legitimate signal transmission power and artificial auxiliary noise power of the base station to satellite segment based on the power auxiliary parameters of the current base station to satellite segment.

[0237] In some embodiments, the power allocation device of the satellite-to-ground communication network also includes a first access determination module; the first access determination module is used to return to execute the channel information of the current user to the base station segment of the satellite-to-ground communication network when obtaining the current user access channel when a new current user accesses the channel or the current user accesses the channel again, if it is determined that the current user to base station segment does not meet the safety communication conditions.

[0238] In some embodiments, the power allocation device of the satellite-to-ground communication network also includes a second access determination module; the second access determination module is used to return to execute the channel information from the current user to the base station segment of the satellite-to-ground communication network when obtaining the current user access channel when a new current user accesses the channel or the current user accesses the channel again, if it is determined that the current base station to satellite segment does not meet the safety communication conditions.

[0239] The present application provides a base station power management center, including the device as described above.

[0240] Figure 7 The figure shows a module block diagram of a base station power management center provided in an embodiment of the present application.

[0241] like Figure 7 As shown, the base station power management center 70 includes one or more processors 71 for implementing the above-mentioned power allocation method for the satellite-to-ground communication network.

[0242] In some embodiments, the base station power management center 70 may include a computer-readable storage medium 79, which may store a program that can be called by the processor 71 and may include a non-volatile storage medium. In some embodiments, the base station power management center 70 may include a memory 78 and an interface 77. In some embodiments, the base station power management center 70 may also include other hardware according to actual applications.

[0243] The computer-readable storage medium 79 of the embodiment of the present application stores a program thereon, which, when executed by the processor 71, is used to implement the power allocation method for the satellite-to-earth communication network as described above.

[0244] The present application may take the form of a computer program product implemented on one or more computer-readable storage media 79 (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing program code. Computer-readable storage media 79 include permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer-readable storage media 79 include but are not limited to: phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, read-only compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission medium that can be used to store information that can be accessed by a computing device.

[0245] The above description is only a preferred embodiment of this specification and is not intended to limit this specification. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this specification should be included in the scope of protection of this specification.

[0246] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the phrase "includes a ..." defines an element, and does not exclude the presence of other identical elements in the process, method, commodity or device including the element.

Claims

1. A power allocation method for a satellite-to-ground communication network, characterized in that: include: Acquire channel information of a segment from the current user to the base station in the satellite-to-ground communication network when the current user accesses the channel, wherein the channel information from the current user to the base station includes user uplink transmission power; In the case where it is determined that the current user-to-base station segment meets the safety communication condition, determining the base station artificial auxiliary noise power according to the channel information of the current user-to-base station segment; Adding the base station artificial auxiliary noise power in the current user-to-base station segment, and performing optimal power allocation with the user uplink transmission power and the base station artificial auxiliary noise power; Acquire channel information from a current base station to a satellite segment of the satellite-to-ground communication network; When it is determined that the current base station-to-satellite segment meets the safety communication conditions, determining the base station legitimate signal transmission power of the base station-to-satellite segment and the artificial auxiliary noise power allocated by the base station according to the channel information of the current base station-to-satellite segment; The legitimate signal transmission power of the base station and the artificial auxiliary noise power are added to the current base station-to-satellite segment, and optimal power allocation is performed with the legitimate signal transmission power of the base station and the artificial auxiliary noise power.

2. The power distribution method for a satellite-to-ground communication network according to claim 1, characterized in that: The method of determining the base station artificial auxiliary noise power according to the channel information of the current user to the base station segment when it is determined that the current user to the base station segment meets the safety communication condition includes: In the case where it is determined that the segment from the current user to the base station meets the safety communication conditions, a first safety communication identifier is generated, and according to the channel information from the segment from the current user to the base station, the base station artificial auxiliary noise power is determined, wherein the first safety communication identifier is used to identify that the segment from the current user to the base station is in a safety communication state; The adding the base station legitimate signal transmission power and the artificial auxiliary noise power in the current base station to satellite segment includes: According to the first safety communication identifier, the base station legitimate signal transmission power and the artificial auxiliary noise power are added in the current base station to satellite segment.

3. The power distribution method for a satellite-to-ground communication network according to claim 1, characterized in that: The channel information of the current user-to-base station segment includes the channel information transmitted by the user and the eavesdropper channel state information of the current user-to-base station segment; The initialization parameters of the satellite-to-ground communication network include base station full-duplex self-interference information, noise information of the base station receiving end, initialization parameters of user transmission and maximum transmission power of the base station; The determining that the current user-to-base station segment meets the secure communication condition includes: Determine the channel gain ratio auxiliary parameter of the current user to base station segment; Under the constraint condition of maximizing the safety capacity of the current user-to-base station segment, it is determined that the current user-to-base station segment meets the safety communication condition based on the channel gain ratio auxiliary parameter of the current user-to-base station segment.

4. The power distribution method for a satellite-to-ground communication network as claimed in claim 3, characterized in that: The determining of the auxiliary parameter of the channel gain ratio from the current user to the base station segment includes: Determine a channel gain factor according to the eavesdropper channel state information, the user transmission channel information, and the base station full-duplex self-interference; Determining a transmission impact factor of the noise interference on the transmission according to the noise information of the base station receiving end, the channel information of the user transmission and the initialization parameter of the user transmission; The determining that the current user-to-base station segment meets the secure communication condition includes: According to the channel gain factor being greater than 1 and the maximum transmission power of the base station being greater than the transmission impact factor, it is determined that the current user-to-base station segment meets the safety communication conditions.

5. The power distribution method for a satellite-to-ground communication network as claimed in claim 4, characterized in that: The eavesdropper channel state information includes the base station to eavesdropper channel state information of the current user to base station segment and the current user to eavesdropper channel state information of the current user to base station segment; The determining of the channel gain factor according to the eavesdropper channel state information, the user transmitted channel information, and the base station full-duplex self-interference includes: Determine a ratio of a first channel gain of a base station-to-eavesdropper channel and a base station self-interference channel according to the base station-to-eavesdropper and the base station full-duplex self-interference information; Determine the ratio of the second channel gain from the user to the base station and from the user to the eavesdropper according to the channel information transmitted by the user and the current channel state information from the user to the eavesdropper; The determining, based on the noise information of the base station receiving end, the channel information of the user transmission and the initialization parameter of the user transmission, a transmission impact factor of the noise interference on the transmission includes: Determining a first ratio of the base station full-duplex self-interference to the user transmission according to the base station full-duplex self-interference, the channel information of the user transmission, and the initialization parameter of the user transmission; Determining a second ratio of the noise at the base station receiving end to the user transmission according to the noise information at the base station receiving end, the channel information of the user transmission, and the initialization parameter of the user transmission; The determining that the current user-to-base station segment meets the safety communication condition based on the channel gain factor being greater than 1 and the base station maximum transmission power being greater than the transmission impact factor includes: Determine that the ratio of the first channel gains is greater than 1, the product of the ratio of the first channel gains and the ratio of the second channel gains is greater than 1, and the maximum transmit power of the base station is greater than the ratio of the first ratio adjusted by the second channel gain ratio to the adjusted second ratio.

6. The power distribution method for a satellite-to-ground communication network as claimed in claim 3, characterized in that: The determining, according to the channel information of the current user to the base station segment, the user uplink transmission power from the current user to the base station and the base station artificial auxiliary noise power comprises: Determine a power auxiliary parameter for the segment from the current user to the base station according to the channel gain ratio auxiliary parameter for the segment from the current user to the base station; The base station artificial auxiliary noise power of the current user to base station segment is determined according to the power auxiliary parameter of the current user to base station segment.

7. The power distribution method for a satellite-to-ground communication network according to claim 1, characterized in that: The method further comprises: determining, in the case where it is determined that the current base station-to-satellite segment meets the safety communication condition, the base station legitimate signal transmission power of the base station-to-satellite segment and the artificial auxiliary noise power allocated by the base station according to the channel information of the current base station-to-satellite segment, including: When it is determined that the current base station-to-satellite segment meets the safety communication conditions, a second safety communication identifier is generated, and according to the channel information of the current base station-to-satellite segment, the base station legal signal transmission power and the artificial auxiliary noise power allocated by the base station of the base station-to-satellite segment are determined; the second safety communication identifier is used to identify that the current base station-to-satellite segment is in a safety communication state; The adding the base station legitimate signal transmission power and the artificial auxiliary noise power in the current base station to satellite segment includes: According to the second safety communication identifier, the base station legitimate signal transmission power and the artificial auxiliary noise power are added in the current base station to satellite segment.

8. The power distribution method for a satellite-to-ground communication network as claimed in claim 1, characterized in that: The determining that the current base station to satellite segment meets the safety communication condition includes: Determine the channel gain ratio auxiliary parameter of the current base station to satellite segment; Under the constraint condition of maximizing the safety capacity of the current base station to satellite segment, it is determined that the current base station to satellite segment meets the safety communication conditions based on the channel gain ratio auxiliary parameter of the current base station to satellite segment.

9. The power distribution method for a satellite-to-ground communication network as claimed in claim 8, characterized in that: The channel information of the current base station to satellite segment includes the current base station to satellite channel gain and the current base station to eavesdropper channel state information of the current base station to satellite segment; The initialization parameters of the satellite-to-ground communication network include satellite receiving end noise information, base station transmission initialization parameters and satellite receiving end residual interference coefficient; The determining of the auxiliary parameter of the channel gain ratio from the current base station to the satellite segment comprises: Determine a ratio of a third channel gain of the current base station to the satellite channel to the current base station to the eavesdropper channel according to the current base station to the satellite channel gain and the base station to the eavesdropper channel state information of the current base station to the satellite segment; Determining a third ratio of noise to base station transmission according to the satellite receiving end noise information, the current base station to satellite channel gain and the initialization parameter of the base station transmission; The determining, based on the channel gain ratio auxiliary parameter of the current base station to satellite segment, that the current base station to satellite segment meets the safety communication condition includes: Comparing the third ratio adjusted by the ratio of the third channel gain and the sum of the residual interference coefficient of the satellite receiving end is less than 1.

10. The power distribution method for a satellite-to-ground communication network as claimed in claim 9, characterized in that: The determining, according to the channel information of the current base station to satellite segment, the base station legitimate signal transmission power and the artificial auxiliary noise power allocated by the base station from the base station to the satellite segment comprises: Determine a power auxiliary parameter of the current base station to satellite segment according to the channel gain ratio auxiliary parameter of the current base station to satellite segment; According to the power auxiliary parameters of the current base station to satellite segment, the base station legitimate signal transmission power and the artificial auxiliary noise power of the base station to satellite segment are determined.

11. The power distribution method for a satellite-to-ground communication network according to claim 1, characterized in that: The power allocation method of the satellite-to-ground communication network also includes: When it is determined that the section from the current user to the base station does not meet the safety communication conditions, when a new current user accesses the channel or the current user accesses the channel again, the channel information from the current user to the base station section of the satellite-to-earth communication network when obtaining the current user access channel is returned.

12. The power distribution method for a satellite-to-ground communication network according to claim 1, characterized in that: The power allocation method of the satellite-to-ground communication network also includes: When it is determined that the current base station to satellite segment does not meet the safety communication conditions, when a new current user accesses the channel or the current user accesses the channel again, the channel information of the current user to base station segment of the satellite-to-ground communication network when obtaining the current user access channel is returned.

13. A power distribution device for a satellite-to-earth communication network, characterized in that: include: An information collection module for the segment from the current user to the base station, used to obtain the channel information from the segment from the current user to the base station of the satellite-to-ground communication network when the current user accesses the channel, wherein the channel information from the current user to the base station segment includes the user uplink transmission power; A power determination module for the current user-to-base station segment, configured to determine the base station artificial auxiliary noise power according to the channel information of the current user-to-base station segment when it is determined that the current user-to-base station segment meets the safety communication conditions; A power allocation module for the current user-to-base station segment, configured to add the base station artificial auxiliary noise power in the current user-to-base station segment, and perform optimal power allocation with the user uplink transmission power and the base station artificial auxiliary noise power; The information collection module of the current base station to satellite segment is used to obtain the channel information of the current base station to satellite segment of the satellite-to-earth communication network; The power determination module of the current base station to satellite segment is used to determine the base station legitimate signal transmission power of the base station to the satellite segment and the artificial auxiliary noise power allocated by the base station according to the channel information of the current base station to the satellite segment when it is determined that the current base station to the satellite segment meets the safety communication conditions; The power allocation module of the current base station to satellite segment is used to add the base station legal signal transmission power and the artificial auxiliary noise power in the current base station to satellite segment, and perform optimal power allocation with the base station legal signal transmission power and the artificial auxiliary noise power.

14. The power distribution device for a satellite-to-ground communication network as claimed in claim 13, characterized in that: The power determination module of the current user to base station segment is specifically used to generate a first safety communication identifier when it is determined that the current user to base station segment meets the safety communication conditions, and determine the base station artificial auxiliary noise power according to the channel information of the current user to base station segment, wherein the first safety communication identifier is used to identify that the current user to base station segment is in a safety communication state; The power allocation module of the current user to base station segment is specifically used to add the base station legal signal transmission power and the artificial auxiliary noise power in the current base station to satellite segment according to the first safety communication identifier.

15. The power distribution device for a satellite-to-ground communication network as claimed in claim 13, characterized in that: The channel information of the current user-to-base station segment includes the channel information transmitted by the user and the eavesdropper channel state information of the current user-to-base station segment; The initialization parameters of the satellite-to-ground communication network include base station full-duplex self-interference information, noise information of the base station receiving end, initialization parameters of user transmission and maximum transmission power of the base station; The device also includes a first safety communication condition determination module, which is used to determine that the current user-to-base station segment meets the safety communication condition, wherein the first safety communication condition determination module includes: a first channel gain ratio auxiliary parameter submodule and a first safety communication condition determination submodule; The first channel gain ratio auxiliary parameter submodule is used to determine the channel gain ratio auxiliary parameter of the current user to base station segment; The first safety communication condition determination submodule is used to determine whether the current user to base station segment meets the safety communication condition based on the channel gain ratio auxiliary parameter of the current user to base station segment under the constraint condition of maximizing the safety capacity of the current user to base station segment.

16. The power distribution device for a satellite-to-ground communication network as claimed in claim 15, characterized in that: The first channel gain ratio auxiliary parameter submodule includes: a channel gain factor determination unit and a transmission impact factor determination unit A channel gain factor determination unit, configured to determine a channel gain factor according to the eavesdropper channel state information, the user transmission channel information, and the base station full-duplex self-interference; A transmission impact factor determination unit, configured to determine a transmission impact factor of the noise interference on the transmission based on the noise information of the base station receiving end, the channel information of the user transmission and the initialization parameter of the user transmission; The first secure communication condition determination submodule comprises a first secure communication condition determination unit; The first safety communication condition determination unit is used to determine that the current user-to-base station segment meets the safety communication condition based on the channel gain factor being greater than 1 and the base station maximum transmission power being greater than the transmission impact factor.

17. The power distribution device for a satellite-to-ground communication network as claimed in claim 16, characterized in that: The eavesdropper channel state information includes the base station to eavesdropper channel state information of the current user to base station segment and the current user to eavesdropper channel state information of the current user to base station segment; The channel gain factor determination unit is specifically used to determine the ratio of the first channel gain of the base station to the eavesdropper and the base station self-interference channel according to the base station to the eavesdropper and the base station full-duplex self-interference information; Determine the ratio of the second channel gain from the user to the base station and from the user to the eavesdropper according to the channel information transmitted by the user and the current channel state information from the user to the eavesdropper; The transmission impact factor determination unit is specifically configured to determine a first ratio of the base station full-duplex self-interference to the user transmission according to the base station full-duplex self-interference, the channel information of the user transmission, and the initialization parameter of the user transmission; Determining a second ratio of the noise at the base station receiving end to the user transmission according to the noise information at the base station receiving end, the channel information of the user transmission, and the initialization parameter of the user transmission; The first secure communication condition determination unit is specifically used to determine that the ratio of the first channel gain is greater than 1, the product of the ratio of the first channel gain and the ratio of the second channel gain is greater than 1, and the maximum transmission power of the base station is greater than the ratio of the first ratio adjusted by the second channel gain ratio and the adjusted second ratio.

18. The power distribution device for a satellite-to-ground communication network as claimed in claim 15, characterized in that: The power determination module for the current user to base station segment is specifically used to determine the power auxiliary parameters of the current user to base station segment based on the channel gain ratio auxiliary parameters of the current user to base station segment; and determine the base station artificial auxiliary noise power of the current user to base station segment based on the power auxiliary parameters of the current user to base station segment.

19. The power distribution device for a satellite-to-ground communication network as claimed in claim 13, characterized in that: The power determination module of the current base station to satellite segment is specifically used to generate a second safety communication identifier when it is determined that the current base station to satellite segment meets the safety communication conditions, and determine the base station legal signal transmission power of the base station to the satellite segment and the artificial auxiliary noise power allocated by the base station according to the channel information of the current base station to the satellite segment; The second safety communication identifier is used to identify that the current base station to satellite segment is in a safety communication state; The power allocation module from the current base station to the satellite segment is specifically used to add the base station legitimate signal transmission power and the artificial auxiliary noise power in the current base station to the satellite segment according to the second safety communication identifier.

20. The power distribution device for a satellite-to-ground communication network as claimed in claim 13, characterized in that: The device further comprises a second safety communication condition determination module, which is used to determine that the current base station to satellite segment meets the safety communication condition, wherein the second safety communication condition determination module comprises: a second channel gain ratio auxiliary parameter submodule and a second safety communication condition determination submodule; The second channel gain ratio auxiliary parameter submodule is used to determine the channel gain ratio auxiliary parameter of the current base station to satellite segment; The second safety communication condition determination submodule is used to determine whether the current base station to satellite segment meets the safety communication condition based on the channel gain ratio auxiliary parameter of the current base station to satellite segment under the constraint condition of maximizing the safety capacity of the current base station to satellite segment.

21. The power distribution device for a satellite-to-ground communication network as claimed in claim 20, characterized in that: The channel information of the current base station to satellite segment includes the current base station to satellite channel gain and the current base station to eavesdropper channel state information of the current base station to satellite segment; The initialization parameters of the satellite-to-ground communication network include satellite receiving end noise information, base station transmission initialization parameters and satellite receiving end residual interference coefficient; The second channel gain ratio auxiliary parameter submodule is specifically used to determine the ratio of the third channel gain of the current base station to the satellite channel and the current base station to the eavesdropper channel according to the current base station to the satellite channel gain and the base station to the eavesdropper channel state information of the current base station to the satellite segment; The second safety communication condition determination submodule is specifically used to determine a third ratio of noise to base station transmission based on the satellite receiving end noise information, the current base station to satellite channel gain and the initialization parameters of the base station transmission; The second safety communication condition determination submodule includes a second safety communication condition determination unit; The second safety communication condition determination unit is used to compare the third ratio adjusted by the third channel gain ratio with the sum of the residual interference coefficient of the satellite receiving end, which is less than 1.

22. The power distribution device for a satellite-to-ground communication network as claimed in claim 21, characterized in that: The second safety communication condition determination unit is specifically used to determine the power auxiliary parameters of the current base station to satellite segment based on the channel gain ratio auxiliary parameters of the current base station to satellite segment; and determine the base station legitimate signal transmission power and the artificial auxiliary noise power of the base station to satellite segment based on the power auxiliary parameters of the current base station to satellite segment.

23. The power distribution device for a satellite-to-ground communication network as claimed in claim 13, characterized in that: The power allocation device of the satellite-to-ground communication network further includes a first access determination module; The first access determination module is used to return to execute the channel information of the current user to the base station segment of the satellite-to-earth communication network when obtaining the current user access channel when a new current user accesses the channel or the current user accesses the channel again, when it is determined that the current user to base station segment does not meet the safety communication conditions.

24. The power distribution device for a satellite-to-ground communication network as claimed in claim 13, characterized in that: The power allocation device of the satellite-to-ground communication network further includes a second access determination module; The second access determination module is used to return to execute the channel information of the current user to the base station segment of the satellite-to-ground communication network when obtaining the current user access channel when a new current user accesses the channel or the current user accesses the channel again, if it is determined that the current base station to satellite segment does not meet the safety communication conditions.

25. A base station power management center, characterized in that: Comprising a device as described in any one of claims 13-24.

26. A computer-readable storage medium having computer instructions stored thereon, characterized in that: When the instruction is executed by a processor, the method as described in any one of claims 1 to 12 is implemented.

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