CN116112063A - Power allocation method, device and base station power management center of satellite-ground communication network - Google Patents

Abstract

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

Description

Power distribution method, device and base station power management center of satellite-ground communication network

technical field

The invention relates to the technical field of communication network security, in particular to a power distribution method and device for a satellite-to-earth communication network, and a base station power management center.

Background technique

Under the satellite-to-ground communication network, base stations or access points in remote areas access the core network through satellites, thereby providing ground users with economical and efficient communication access services. However, considering the wide-area coverage and open channel characteristics of the satellite-ground communication network, coupled with the fact that the satellite-ground communication network carries a large amount of sensitive data and has extremely high security requirements, eavesdropping by malicious users will bring high political and economic losses.

Contents of the invention

The present application provides a power allocation method, device and base station power management center of a satellite-to-earth communication network, which can suppress malicious users from eavesdropping, increase uplink security capacity, and improve communication security.

The present application provides a power allocation method for a satellite-to-ground communication network, including: acquiring channel information from the current user to the base station section of the satellite-to-ground communication network when the current user accesses the channel, and the channel information from the current user to the base station section includes user uplink In the case that the current user-to-base station section is determined to meet the safe communication conditions, the artificial auxiliary noise power of the base station is determined according to the channel information of the current user-to-base station section; the artificial auxiliary noise power of the base station is added to the current user-to-base station section, Perform optimal power allocation with user uplink transmission power and base station artificial auxiliary noise power; obtain channel information from the current base station to the satellite segment of the satellite-ground communication network; when it is determined that the current base station to satellite segment meets the safe communication conditions, According to the channel information of the current base station to the satellite segment, determine the legal signal transmission power of the base station to the satellite segment and the artificial auxiliary noise power allocated by the base station; add the legal signal transmission power of the base station and the artificial auxiliary noise power in the current base station to the satellite segment to The optimal power allocation is performed on the legal signal transmission power of the base station and the artificial auxiliary noise power.

Further, when it is determined that the section from the current user to the base station meets the safe communication conditions, according to the channel information of the section from the current user to the base station, the artificial auxiliary noise power of the base station is determined, including: after determining that the section from the current user to the base station meets the safe communication conditions In the case of , generate a first safety communication identification, and determine the artificial auxiliary noise power of the base station according to the channel information of the current user to the base station section, and the first safety communication identification is used to identify that the current user to the base station section is in a safe communication state;

Adding base station legal signal transmission power and artificial auxiliary noise power in the current base station to satellite section includes: adding base station legal signal transmission power and artificial auxiliary noise power in the current base station to satellite section according to the first safety communication identification.

Further, the channel information from the current user to the base station includes the channel information transmitted by the user and the channel state information of the eavesdropper from the current user to the base station; the initialization parameters of the satellite-ground communication network include the full-duplex self-interference information of the base station, the noise of the base station receiving end Information, initialization parameters for user transmission and maximum transmit power of the base station;

Determining that the current user-to-base station section meets the safe communication conditions, including: determining the channel gain ratio auxiliary parameter of the current user-to-base station section; under the constraints of the maximum security capacity of the current user-to-base station section, according to The auxiliary parameter of the channel gain ratio of the segment determines that the segment from the current user to the base station meets the safe communication conditions.

Further, determining the channel gain ratio auxiliary parameters from the current user to the base station section includes: determining the channel gain factor based on the channel state information of the eavesdropper, the channel information transmitted by the user, and the full-duplex self-interference of the base station; based on the noise information of the receiving end of the base station, The channel information of the user transmission and the initialization parameters of the user transmission determine the transmission influence factor of noise interference on the transmission; determine that the current user to the base station meets the safe communication conditions, including: according to the channel gain factor is greater than 1 and the maximum transmission power of the base station is greater than the transmission Impact factor, to determine that the current user-to-base station meets the safe communication conditions.

Further, the eavesdropper channel state information includes the channel state information from the base station to the eavesdropper from the current user to the base station section and the channel state information from the current user to the eavesdropper from the current user to the base station section; according to the eavesdropper channel state information, the channel information transmitted by the user, Base station full-duplex self-interference, determine the channel gain factor, including:

According to the base station to the eavesdropper and the base station full-duplex self-interference information, determine the first channel gain ratio of the base station to the eavesdropper and the base station self-interference channel;

According to the channel information transmitted by the user and the current channel state information from the user to the eavesdropper, 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 noise information of the receiving end of the base station, the channel information of the user transmission and the initialization parameters of the user transmission, determine the transmission influence factor of the influence of noise interference on the transmission, including:

According to the channel information of the full-duplex self-interference of the base station and the user transmission and the initialization parameters of the user transmission, determine the first ratio of the full-duplex self-interference of the base station to the user transmission;

determining a second ratio of noise at the receiving end of the base station to user transmission according to the noise information at the receiving end of the base station, the channel information transmitted by the user, and the initialization parameters of the user transmission;

Based on 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 section meets the safe communication conditions, including:

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 transmit power of the base station is greater than the first ratio adjusted by the ratio of the second channel gain and the adjusted The ratio of the second ratio.

Further, according to the channel information from the current user to the base station, determining the user uplink transmit power and the artificial auxiliary noise power of the base station from the current user to the base station, including: determining the current user's The power assist parameter to the base station section; according to the power assist parameter of the current user to the base station section, determine the artificial auxiliary noise power of the base station from the current user to the base station section.

Further, when it is determined that the current base station to the satellite segment meets the safe communication conditions, according to the channel information of the current base station to the satellite segment, determine the legal signal transmission power of the base station to the satellite segment and the artificial auxiliary noise power allocated by the base station, include:

When it is determined that the current base station to the satellite section meets the safe communication conditions, generate a second safe communication identification, and determine the legal signal transmission power of the base station to the satellite section from the base station to the satellite section according to the channel information of the current base station to the satellite section. Artificial auxiliary noise power; the second safety communication identification is used to identify that the current base station to satellite segment is in a safe communication state;

Adding base station legal signal transmission power and artificial auxiliary noise power in the current base station to satellite section includes: adding base station legal signal transmission power and artificial auxiliary noise power in the current base station to satellite section according to the second safety communication identification.

Further, it is determined that the current base station to the satellite segment meets the safe communication conditions, including: determining the channel gain ratio auxiliary parameter of the current base station to the satellite segment; The auxiliary parameter of the channel gain ratio of the base station to the satellite section determines that the current base station to the satellite section meets the safe communication conditions.

Further, the channel information from the current base station to the satellite section includes the current base station to the satellite channel gain and the current base station to the satellite section from the current base station to the eavesdropper channel state information; the initialization parameters of the satellite-ground communication network include satellite receiver noise information, base station transmission The initialization parameters of the satellite receiver and the residual interference coefficient of the satellite receiver;

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

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

determining the third ratio of noise to base station transmission according to the noise information of the satellite receiving end, and the current base station to satellite channel gain and the initialization parameters of base station transmission;

According to the auxiliary parameters 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 safe communication conditions, including:

The sum of the third ratio adjusted by the ratio of the third channel gain and the residual interference coefficient of the satellite receiving end is less than 1.

Further, according to the channel information from the current base station to the satellite segment, determine the legal signal transmission power of the base station to the satellite segment and the artificial auxiliary noise power allocated by the base station, including: according to the channel gain ratio auxiliary parameter of the current base station to the satellite segment, determine The power assist parameter of the current base station to the satellite segment; according to the power assist parameter of the current base station to the satellite segment, determine the legal signal transmission power and the artificial auxiliary noise power of the base station to the satellite segment.

Further, the power allocation method of the satellite-ground communication network also includes: when it is determined that the section from the current user to the base station does not meet the safe communication conditions, when a new current user accesses the channel or the current user accesses the channel again, Go back to the execution to obtain the channel information from the current user to the base station section of the satellite-ground communication network when the current user accesses the channel.

Further, the power allocation method of the satellite-ground communication network also includes: when it is determined that the current base station to the satellite section does not meet the safe communication conditions, when a new current user accesses the channel or the current user accesses the channel again, Go back to the execution to obtain the channel information from the current user to the base station section of the satellite-ground communication network when the current user accesses the channel.

This application provides a power distribution device for a satellite-to-earth communication network, including:

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

The power determining module of the section from the current user to the base station is used to determine the artificial auxiliary noise power of the base station according to the channel information of the section from the current user to the base station when it is determined that the section from the current user to the base station meets the safe communication conditions;

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

The information collection module from the current base station to the satellite section is used to obtain the channel information from the current base station to the satellite section of the satellite-ground communication network;

The power determining module of the current base station to the satellite section is used to determine the legal signal transmission power and Artificial auxiliary noise power allocated by the base station;

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

Further, the power determining module of the section from the current user to the base station is specifically used to generate a first secure communication identifier when it is determined that the section from the current user to the base station meets the safe communication conditions, and according to the channel information of the section from the current user to the base station, Determining the artificial auxiliary noise power of the base station, the first safety communication identification is used to identify that the current user is in a safe communication state to the base station;

The power allocation module for the section from the current user to the base station is specifically used to add legal signal transmission power of the base station and artificial auxiliary noise power in the section from the current base station to the satellite according to the first secure communication identification.

Further, the channel information from the current user to the base station section includes the channel information transmitted by the user and the eavesdropper channel state information from the current user to the base station section;

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

The device also includes a first safe communication condition determination module, which is used to determine that the current user to the base station meets the safe communication conditions, wherein the first safe communication condition determination module includes: a first channel gain ratio auxiliary parameter sub-module and a first safe communication Condition determination sub-module;

The first channel gain ratio auxiliary parameter submodule is used to determine the channel gain ratio auxiliary parameter from the current user to the base station;

The first safety communication condition determination submodule is used to determine that the current user-to-base station section meets secure communication conditions.

Further, the first channel gain ratio auxiliary parameter submodule includes: a unit for determining the channel gain factor and a unit for determining the transmission influence factor

The channel gain factor determination unit is used to determine the channel gain factor according to the eavesdropper's channel state information, the channel information transmitted by the user, and the base station full-duplex self-interference;

The determination unit of the transmission influence factor is used to determine the transmission influence factor of 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 parameters of the user transmission;

The first safe communication condition determining submodule includes a first safe communication condition determining unit;

The first safe communication condition determination unit is used to determine that the current user-to-base station section meets the safe communication conditions according to the channel gain factor being greater than 1 and the base station maximum transmission power being greater than the transmission impact factor.

Further, the eavesdropper channel state information includes the channel state information from the base station to the eavesdropper from the current user to the base station section and the channel state information from the current user to the eavesdropper from the current user to the base station section;

The channel gain factor determination unit is specifically used to determine the first channel gain ratio 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;

According to the channel information transmitted by the user and the current channel state information from the user to the eavesdropper, determine the ratio of the second channel gain from the user to the base station and from the user to the eavesdropper;

The determination unit of the transmission influence factor is specifically used to determine the first ratio of the base station full-duplex self-interference to the user transmission according to the channel information of the base station full-duplex self-interference and user transmission and the initialization parameters of the user transmission; The channel information of the information and the user transmission and the initialization parameters of the user transmission determine the second ratio of the noise at the receiving end of the base station to the user transmission;

The first safe communication condition determining 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 second channel gain Ratio The ratio of the adjusted first ratio to the adjusted second ratio.

Further, the power determination module of the current user to the base station section is specifically used to determine the power assistance parameter of the current user to the base station section according to the channel gain ratio auxiliary parameter of the current user to the base station section; according to the power assistance parameter of the current user to the base station section , to determine the artificial auxiliary noise power of the base station from the current user to the base station.

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

The power allocation module of the current base station to the satellite section is specifically used to add the legal signal transmission power of the base station and the artificial auxiliary noise power in the current base station to the satellite section according to the second security communication identification.

Further, the device also includes a second safe communication condition determination module, which is used to determine that the current base station to satellite section meets the safe communication conditions, wherein the second safe communication condition determination module includes: a second channel gain ratio auxiliary parameter sub-module and a second Two safety communication conditions determine the 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 the satellite section; the second safety communication condition determination submodule is used for the current base station to the satellite section Under the constraint condition of maximizing the safety capacity, 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 safe communication conditions.

Further, the channel information from the current base station to the satellite section includes the current base station to the satellite channel gain and the current base station to the satellite section from the current base station to the eavesdropper channel state information; the initialization parameters of the satellite-ground communication network include satellite receiver noise information, base station transmission The initialization parameters of the satellite receiver and the residual interference coefficient of the satellite receiver;

The second channel gain ratio auxiliary parameter sub-module is specifically used to determine the current base station to satellite channel and the current base station to eavesdropper channel status information according to the current base station to satellite channel gain and the current base station to satellite segment base station to eavesdropper channel state information The ratio of the three channel gains;

The second safe communication condition determination submodule is specifically used to determine the third ratio of noise to base station transmission according to the noise information of the satellite receiving end, the current base station to the satellite channel gain and the initialization parameters of the base station transmission; the second safe communication condition determination submodule A module including a second secure communication condition determination unit;

The second safe communication condition determining unit is used for comparing the third ratio adjusted by the ratio of the third channel gain with the sum of the residual interference coefficient of the satellite receiving end being less than 1.

Further, the second safe communication condition determination unit is specifically used to determine the power auxiliary parameter from the current base station to the satellite section according to the channel gain ratio auxiliary parameter from the current base station to the satellite section; determine the power assistance parameter from the current base station to the satellite section The legal signal transmission power and artificial auxiliary noise power of the base station to the satellite segment.

The present application provides a computer-readable storage medium, on which computer instructions are stored, and when the instructions are executed by a processor, any one of the above methods is implemented.

Further, the power distribution method of the satellite-ground communication network of the present application, in the case that the two sections from the current user to the base station and the current base station to the satellite section respectively meet the safe communication conditions, add artificial assistance from the base station in the section from the current user to the base station Noise power, in order to achieve the optimal power allocation in this section, and add the legal signal transmission power of the base station and the artificial auxiliary noise power in the current base station to the satellite section, in order to achieve the optimal power allocation in this section, and finally realize the optimal power allocation of the two sections Power allocation can suppress malicious users from eavesdropping, increase the uplink secure transmission capacity, and facilitate the secure transmission of information.

Description of drawings

Fig. 1 shows the system diagram of the satellite-to-earth communication network provided by the embodiment of the present application;

FIG. 2 is a schematic flow diagram of a power allocation method for a satellite-to-earth communication network provided in an embodiment of the present application;

FIG. 3 is a schematic flow diagram of a power allocation method for a satellite-to-earth communication network from a current user to a base station segment provided by an embodiment of the present application;

FIG. 4 is a schematic flow diagram of a power allocation method for a current base station to a satellite-to-satellite communication network provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of the uplink security capacity performance of the satellite-to-earth communication network provided by the embodiment of the present application;

FIG. 6 is a schematic block diagram of a power allocation device for a satellite-to-earth communication network provided by an embodiment of the present application;

FIG. 7 is a block diagram of modules of a base station power management center provided by an embodiment of the present application.

Detailed ways

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to 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 this specification. Rather, they are merely examples of apparatuses and methods consistent with aspects of one or more embodiments of the present specification as recited in the appended claims.

It should be noted that in other embodiments, the steps of the corresponding methods are not necessarily performed in the order shown and described in this specification. In some other embodiments, the method may include more or less steps 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; multiple steps described in this specification may also be combined into a single step in other embodiments describe.

In order to effectively suppress eavesdropping by malicious users and realize secure transmission, an embodiment of the present application provides a power allocation method for a satellite-ground communication network.

Wherein, by obtaining the channel information from the current user to the base station section of the satellite-ground communication network when the current user accesses the channel, if the current user to the base station section is determined to meet the safe communication conditions, according to the channel information from the current user to the base station section , determine the artificial noise power of the base station; add the artificial auxiliary noise power of the base station in the current user to the base station section, and perform optimal power allocation with the user uplink transmission power and the artificial auxiliary noise power of the base station; obtain the current base station to the satellite of the satellite-ground communication network The channel information of the segment; in the case that the current base station to the satellite segment is determined to meet the safe communication conditions, according to the channel information of the current base station to the satellite segment, determine the legal signal transmission power of the base station to the satellite segment and the artificial auxiliary noise allocated by the base station Power: add base station legal signal transmission power and artificial auxiliary noise power in the current base station to satellite section, and perform optimal power allocation with base station legal signal transmission power and artificial auxiliary noise power.

In the embodiment of this application, when the two sections of the current user-to-base station section and the current base-station-to-satellite section meet the safe communication conditions respectively, the artificial auxiliary noise power of the base station is added to the section from the current user to the base station to realize this section. The optimal power allocation can effectively suppress the eavesdropping of malicious users from the current user to the base station, improve the communication security from the current user to the base station, and facilitate the safe transmission of information. In addition, the legal signal transmission power of the base station and the artificial auxiliary noise power are added in the current base station to the satellite section to achieve the optimal power allocation in this section, which can effectively suppress the malicious user eavesdropping on the current base station to the satellite section, and improve the distance between the current base station and the satellite section. Communication security is conducive to the safe transmission of information.

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

FIG. 1 is a system schematic diagram of a satellite-ground communication network provided by an embodiment of the present application.

As shown in Figure 1, the satellite-ground 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.

Wherein, the above-mentioned user is connected with the base station including the coverage area and the subordinate satellite to form a communication link, and the subordinate satellite refers to the satellite whose communication beam range selected by the base station can cover the base station. When the user has data that needs to be transmitted uplink, first select a base station that covers it to establish a communication link. This link is the current base station to satellite segment.

There are inter-satellite links to transmit information among several satellites in the space segment of the satellite-ground communication network, and finally transmit the information to the ground station, so as to transmit the user's uplink transmission data to the core network.

Referring to Figure 1, there may be eavesdropping from malicious users in both the current user-to-base section and the current base-to-satellite section. Eavesdropping, and manage power allocation through the base station power management center.

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

FIG. 2 is a schematic flowchart of a power allocation method for a satellite-ground communication network provided by an embodiment of the present application.

In the embodiment shown in FIG. 2, the power allocation method of the satellite-ground communication network may include but not limited to steps 110a to 130b:

Step 110a, acquire channel information from the current user to the base station section of the satellite-ground communication network when the current user accesses the channel, and the channel information from the current user to the base station section includes user uplink transmit power. The channel information in this embodiment of the present application is real-time channel information of current communication. In this way, the channel changes in real time, the channel information is obtained in real time, and the power allocation is performed in real time, so as to improve the real-time security of the channel.

The above-mentioned current user may refer to one user, or a current user may refer to multiple users. Whether it is an old user who reconnects after being disconnected or a new user who accesses for the first time, as long as it is any user who accesses the channel, it belongs to the implementation of this application. example of the scope of protection.

In some embodiments, the current segment from the user to the base station is an uplink communication link established between the user and the covering communication base station, and the base station adopts a full-duplex mode to simultaneously collect legitimate signals uploaded by the user and emit artificial auxiliary noise.

Step 120a, if it is determined that the current user-to-base station section meets the safe communication conditions, determine the artificial auxiliary noise power of the base station according to the channel information of the current user-to-base station section.

Step 130a, adding base station artificial auxiliary noise power in the section from the current user to the base station, and performing optimal power allocation between user uplink transmission power and base station artificial auxiliary noise power.

Step 110b, acquiring channel information from the current base station to the satellite segment of the satellite-ground communication network.

In some embodiments, the current base station-to-satellite segment is an uplink communication link established between the base station connected to the user and the satellite covering it, and the base station simultaneously transmits the received legal signal of the user and the artificial auxiliary noise signal added to suppress eavesdropping .

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

The foregoing current base station may refer to a base station that covers the current user and establishes a connection with the current user.

基站到卫星信道增益

当前用户到基站段用户到窃听者信道状态信息

当前用户到基站段基站到窃听者信道状态信息

当前基站到卫星段基站到窃听者信道状态信息

本实施例中上述星地通信网络的信道信息通过导频得到。The above-mentioned channel information from the current user to the base station and the channel information from the current base station to the satellite can both be channel information of the satellite-ground communication network, which is 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 channel gain from the user to the base station

Base station to satellite channel gain

Current user-to-base station user-to-eavesdropper channel state information

Current user to base station segment base station to eavesdropper channel status information

Current base station to satellite segment base station to eavesdropper channel status information

In this embodiment, the channel information of the above-mentioned satellite-ground communication network is obtained through a pilot.

Step 130b, add the legal signal transmission power of the base station and the artificial auxiliary noise power in the current base station to the satellite section, and perform optimal power allocation with the legal signal transmission power of the base station and the artificial auxiliary noise power, and finally realize the current user to the base station section and the current base station to the current station. Optimal power allocation for satellite segments.

In the first embodiment shown in FIG. 2 , the method of the embodiment of the present application may execute step 110a, step 120a, step 130a, step 110b, step 120b, and step 130b in sequence.

Further, after the current user accesses the channel, after obtaining the real-time channel information of the current user to the base station section from the current user to the base station section, and determining the optimal power allocation from the current user to the base station section, the base station can be made to collect the legal information sent by the current user Signal. 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 segment is obtained, and after the optimal power allocation from the current base station to the satellite segment is determined, the base station can be made to forward the legal signal sent by the current user .

In the embodiment shown in Fig. 2, since the channel status is changing, when the current user accesses the channel, real-time channel information can be obtained through the current user to the base station section, which improves the accuracy of channel information acquisition, and thus can more accurately The artificial auxiliary noise power of the base station is obtained to suppress eavesdropping by malicious users in the satellite-ground communication network and maximize the uplink security capacity from the current user to the base station. At the same time, when the current user accesses the channel, the real-time channel information can be obtained through the current base station to the satellite segment, which improves the accuracy of the acquisition of the current base station to the satellite segment, and then can obtain the artificial auxiliary noise power more accurately, so as to finally suppress the satellite-ground Eavesdropping by malicious users in the communication network maximizes the uplink security capacity from the current base station to the satellite segment.

Of course, the sequence numbers of step 110a, step 120a, step 130a, step 110b, step 120b and step 130b in FIG. The scope of protection of the embodiments of the present application. Examples are as follows:

In other second embodiments similar to the embodiment shown in Figure 2, compared to the embodiment shown in Figure 2, in other second embodiments, step 110a and step 110b can be executed in parallel, step 120a and step Step 120b can also be executed in parallel, and step 130a and step 130b can be executed in parallel. In this way, the artificial auxiliary noise power and artificial auxiliary noise power of the base station can be quickly obtained in parallel, the processing efficiency is improved, and the ability to suppress eavesdropping by malicious users in the satellite-ground communication network is improved to a certain extent.

In other third embodiments similar to the embodiment shown in FIG. 2, compared with the embodiment shown in FIG. 2, in other third embodiments, the three steps of step 110a, step 120a, and step 130a It can also be executed after the three steps of step 110b, step 120b and step 130b, which are not limited here. In this way, malicious users in the satellite-ground communication network are restrained from eavesdropping to a certain extent.

FIG. 3 is a schematic flowchart of a power allocation method for a current user-to-base station satellite-ground communication network provided by an embodiment of the present application.

As shown in FIG. 3, the above step 120a shown in FIG. 2 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 details are as follows:

Step 100a, initialize parameters of the satellite-ground communication network to obtain initialization parameters of the satellite-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 from the current user to the base station, the signal bandwidth from the current base station to the satellite section, the noise power spectral density of the base station receiving end, and the residual interference coefficient of the satellite receiving end , the base station full-duplex self-interference channel gain, the number of base stations served by each satellite M, the initialization of the communication identification of the current user to the base station meeting the safe communication conditions, and the initialization of the communication identification meeting the safe communication conditions of the current base station to the satellite section.

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

及基站全双工自干扰系数b ρ。The initialization parameters of the above-mentioned satellite-ground communication network include base station full-duplex self-interference information, base station receiving end noise information, user transmission initialization parameters and base station maximum transmission power, wherein the base station full-duplex self-interference information may include base station receiving end noise power spectral density

And base station full-duplex self-interference coefficient b ρ.

Step 111a, determine whether the current user-to-base station section meets the safety communication conditions.

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

(1) Determine the auxiliary parameter of the channel gain ratio from the current user to the base station. (2) Under the constraints of the maximum security capacity of the section from the current user to the base station, determine whether the section from the current user to the base station meets the safety communication conditions according to the auxiliary parameter of the channel gain ratio of the section from the current user to the base station. In this way, considering that channel gain is used to reflect the transmission capability of the channel, a larger gain is more conducive to transmission; interference and user transmission are used to reflect the transmission capability, which is beneficial to effective transmission.

The formula for calculating the uplink safety capacity from the current user to the base station is:

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

大于0，满足

该式可重新写为：

Guarantee the uplink safety capacity of the current user to the base station through the constraints of the maximum safety capacity of the current user to the base station

greater than 0, satisfy

This formula can be rewritten as:

表示基站到窃听者与基站自干扰信道的信道增益之比。

表示窃听者相比于合法接收者经历了更大的人工辅助噪声干扰，即在同样人工噪声功率下，窃听者受到的干扰更大，此时添加人工辅助噪声才有意义，故而通常情况下，需要设定

in,

Indicates the ratio of the channel gain of the base station to the eavesdropper and the base station self-interference channel.

It means that the eavesdropper has experienced greater artificial auxiliary noise interference than the legitimate receiver, that is, under the same artificial noise power, the eavesdropper receives more interference, and it is meaningful to add artificial auxiliary noise at this time, so usually, Need to set

Wherein, the above step (1) may include but not limited to the first step and the second step.

In the first step above, the channel gain factor is determined according to the channel state information of the eavesdropper, the channel information transmitted by the user, and the full-duplex self-interference of the base station.

Wherein, the eavesdropper channel state information includes the base station to the eavesdropper channel state information of the current user to the base station section and the current user to the eavesdropper channel state information of the current user to the base station section;

The above-mentioned first step may include but not limited to 1) and 2): 1), according to the base station to the eavesdropper and the base station full-duplex self-interference information, determine the ratio of the first channel gain of the base station to the eavesdropper and the base station self-interference channel .

Specifically, the ratio of the above-mentioned first channel gain is calculated by using the following formula:

2) According to the channel information transmitted by the user and the current channel state information from the user to the eavesdropper, determine the ratio of the second channel gain from the user to the base station and from the user to the eavesdropper.

Specifically, the ratio of the above-mentioned second channel gain is calculated by using the following formula:

In the above second step, according to the noise information of the receiving end of the base station, the channel information of the user transmission and the initialization parameters of the user transmission, the transmission influence factor of the influence of the noise interference on the transmission is determined.

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

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

其中，ρ^b为基站全双工自干扰系数，

为基站全双工自干扰信道增益，P^u,max为用户最大发射功率，

为用户到基站信道增益。Specifically, the following formula is used to calculate the above-mentioned first ratio:

Among them, ρ ^b is the full-duplex self-interference coefficient of the base station,

is the full-duplex self-interference channel gain of the base station, P ^u,max is the maximum transmit power of the user,

is the channel gain from the user to the base station.

4) According to the noise information of the receiving end of the base station, the channel information of the user transmission and the initialization parameter of the user transmission, determine the second ratio of the noise of the receiving end of the base station to the user transmission. The channel information transmitted by the user includes the current channel gain from the base station to the satellite, and the initialization parameters for the user transmission may include the signal bandwidth from the current user to the base station, the noise power spectral density at the receiving end of the base station, and the maximum transmit power of the user.

Specifically, the second ratio above is calculated by using the following formula:

Among them, B ₁ is the signal bandwidth from the current user to the base station, and u is the initial letter of the current user user, indicating the user side.

Next, the above step (2) may include, but is not limited to, a third step, determining whether the current user-to-base station section meets safe communication conditions according to whether the channel gain factor is greater than 1 and whether the base station’s maximum transmit power is greater than the transmission impact factor. In this way, the channel gain factor is as large as possible, and the transmission influence factor is as small as possible.

The above-mentioned 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 transmit power of the base station is greater than the ratio of the second channel gain The ratio of the adjusted first ratio of the two channel gains to the adjusted second ratio is used to determine whether the current user-to-base station section meets the safe communication conditions.

The adjusted second ratio is obtained by adjusting the second ratio by using the product of the first channel gain ratio and the second channel gain ratio. See c) below for details.

When the first channel gain ratio is not greater than 1, the product of the first channel gain ratio and the second channel gain ratio is not greater than 1, or the maximum transmit power of the base station is not greater than the first ratio adjusted by the second channel gain ratio and The ratio of the adjusted second ratio determines that the current section from the user to the base station does not meet the safety communication condition.

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 first ratio adjusted by the ratio of the second channel gain and the adjusted The ratio of the second ratio determines that the current section from the user to the base station meets the safety communication condition.

b)、

c)、The ratio of the above-mentioned 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 first ratio adjusted by the ratio of the second channel gain and the adjusted The ratio of the second ratio can be respectively: a),

b),

c),

If the three conditions a), b) and c) are all satisfied, it is determined that the current user-to-base station section meets the safe communication conditions, and then proceed to the following step 210a.

Step 210a, when it is determined that the section from the current user to the base station meets the safe communication conditions, generate a first safe communication identification, and determine the artificial auxiliary noise power of the base station according to the channel information from the current user to the base station section, and use the first safe communication identification It is used to identify that the current user-to-base station section is in a secure communication state.

The above-mentioned first safety communication identifier may include, but is not limited to, the first safety communication label FLAG1 or other codes. Certainly, the first safety communication label FLAG1 may be, but not limited to, a single or a combination of letters, characters and numbers.

The above step 210a of generating the first secure communication identifier can be implemented through various embodiments.

In an embodiment of generating the first secure communication identifier in step 210a, it may, but is not limited to, include setting the communication identifier as the first secure communication identifier. Exemplarily, during initialization, the flag FLAG1 of whether the safety communication condition is satisfied or not is set to 0. When the current user-to-base station section meets the safe communication conditions, the label FLAG1 is set to 1.

In another embodiment of the above step 210a of generating the first secure communication identifier, a secure communication identifier related to the current segment from the base station to the satellite meeting the secure communication condition may be generated. Of course, it can be implemented in other embodiments, all of which belong to the protection scope of the embodiments of the present application, and will not give examples one by one here.

In the above-mentioned step 210a, according to the channel information of the current user to the base station section, determining the artificial auxiliary noise power of the base station may include steps 1 and 2, 1. According to the channel gain ratio auxiliary parameter of the current user to the base station section, determine the current user to the base station Power assist parameters for the segment.

Specifically, the following formula is used to calculate the power assistance parameter of the current user to the base station section:

其中

in

2. According to the power assistance parameters of the section from the current user to the base station, determine the artificial auxiliary noise power of the base station on the section from the current user to the base station.

Specifically, the following formula is used to calculate the artificial auxiliary noise power of the base station from the current user to the base station:

Step 310a, according to the first secure communication identifier, add legal signal transmission power of the base station and artificial auxiliary noise power in the current base station to satellite segment. In this way, by using the first safety communication identification, it is beneficial to quickly determine that the current base station to the satellite segment meets the safety communication conditions, improve the efficiency of obtaining artificial auxiliary noise power of the base station, and suppress malicious signals in the satellite-ground communication network in a more efficient manner. User eavesdropping maximizes the uplink security capacity from the current user to the base station.

Step 410a, when it is determined that the section from the current user to the base station does not meet the safe communication conditions, in the case of a new current user accessing the channel or the current user accessing the channel again, return to the process of acquiring the current user access channel Channel information from the current user to the base station of the satellite-ground communication network. In this way, when it is determined that the section from the current user to the base station does not meet the safe communication conditions, the channel can be switched for the new current user or the re-access of the current user, which can facilitate the re-access of the new current user or the current user, Channel usage efficiency can also be improved.

Step 410a may further include initializing the communication identification of the current user-to-base station section when it is determined that the current user-to-base station section does not meet the safe communication conditions. Exemplarily, the flag FLAG1 of whether the safety communication condition is satisfied or not is set to 0.

In some other embodiments when it is determined that the section from the current user to the base station does not meet the safe communication conditions, the communication process of the current user is terminated.

FIG. 4 is a schematic flowchart of a current power allocation method for a satellite-to-satellite communication network from a base station to a satellite segment provided by an embodiment of the present application.

As shown in FIG. 4, the above-mentioned step 120b shown in FIG. 2 may further include the following step 210b, and the above-mentioned step 130b may further include the following step 310b. The method also includes step 100b, step 111b and step 410b. The details are as follows:

Step 100b, initialize parameters of the satellite-ground communication network to obtain initialization parameters of the satellite-ground communication network.

In step 111b, it is determined whether the current base station-satellite segment meets the safety communication condition.

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

<1>. Determine the auxiliary parameter of the channel gain ratio from the current base station to the satellite segment. <2>. Under the constraints of the maximum safety capacity of the current base station to the satellite segment, determine whether the current base station to the satellite segment meets the safety communication conditions according to the channel gain ratio auxiliary parameter of the current base station to the satellite segment.

The formula for calculating the uplink safety capacity of the current base station to satellite segment is:

表示基站-卫星段下卫星接收端噪声功率谱密度。Among them, some parameters are

Indicates the noise power spectral density of the satellite receiving end in the base station-satellite segment.

The uplink safety capacity of the current base station to the satellite section is guaranteed through the constraint condition of the maximum safety capacity of the current base station to the satellite section.

Wherein, the above step <1> may include, but is not limited to, the first step and the second step.

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

The first step can but is not limited to include 1> and 2>:

1>. According to the current base station to satellite channel gain and the current base station to satellite segment base station to eavesdropper channel status information, determine the ratio of the current base station to satellite channel to the third channel gain of the current base station to eavesdropper channel.

其中，

为基站到卫星信道增益，

为当前基站到卫星段基站到窃听者信道状态信息的最大安全容量，s为卫星satellite的首字母，表示卫星侧，bs表示基站到卫星，e为窃听者eavesdropper的首字母，表示窃听者，bse为当前基站到卫星段基站到窃听者。Specifically, the ratio of the third channel gain is calculated by using the following formula:

in,

is the base station to satellite channel gain,

It is the maximum security capacity of the channel state information from the base station to the satellite segment from the base station to the eavesdropper at present, s is the initial letter of the satellite satellite, which means the satellite side, bs means the base station to the satellite, e is the initial letter of the eavesdropper, which means the eavesdropper, and bse For the current base station to satellite segment base station to eavesdropper.

2>. Determine the third ratio of noise to base station transmission according to the noise information of the satellite receiving end, the current base station to satellite channel gain and the initialization parameters of base station transmission. Wherein, the satellite receiver noise information may include the satellite receiver noise power spectral density. The initialization parameters transmitted by the base station include the maximum transmit power of the base station.

Specifically, the following formula is used to calculate the third ratio as

Among them, B ₂ is the signal bandwidth from the current base station to the satellite segment, P ^b,max is the maximum transmission power of the base station, and b is the initial letter of the base station, indicating the base station side.

The above <2> may, but is limited to, include 3>, comparing whether the sum of the third ratio adjusted by the ratio of the third channel gain and the residual interference coefficient of the satellite receiver is less than 1, to determine whether the current base station to satellite segment meets the safe communication conditions.

When the sum of the third ratio adjusted by the ratio of the third channel gain 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 safe communication condition.

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 the satellite section meets the safe communication condition.

其中，ρ^s为卫星接收端残余干扰系数。若确定出当前基站到卫星段符合安全通信条件，则继续执行如下步骤210b。The sum of the above-mentioned third ratio adjusted by the ratio of the third channel gain and the residual interference coefficient of the satellite receiving end is less than 1, which may specifically be

Among them, ρ ^s is the residual interference coefficient of the satellite receiver. If it is determined that the current segment from the base station to the satellite meets the safety communication conditions, continue to execute the following step 210b.

Step 210b, when it is determined that the current base station to satellite segment meets the safe communication conditions, generate a second secure communication identifier, and determine the legal signal transmission power of the base station to the satellite segment from the base station to the satellite segment according to the channel information of the base station and the base station The allocated artificial auxiliary noise power; the second safety communication identification is used to identify that the current base station to satellite segment is in a safety communication state.

The above-mentioned second secure communication identifier is similar to the first secure communication identifier, and the second secure communication identifier may, but is not limited to, include a second secure communication tag FLAG2 or other codes. Of course, the second safety communication tag FLAG2 can be, but not limited to, a single or a combination of letters, characters and numbers.

The above step 210b of generating the second secure communication identifier can be implemented through various embodiments.

In an embodiment of generating the second secure communication identifier in step 210b, generating the second secure communication identifier may, but is not limited to, include setting the communication identifier as the second secure communication identifier. Exemplarily, during initialization, the flag FLAG2 of whether the safety communication condition is satisfied or not is set to 0. In the case that the current base station to the satellite section meets the safe communication conditions, the label FLAG2 is set to 1.

In another embodiment of the above step 210b of generating the second secure communication identifier, a secure communication identifier related to the current segment from the base station to the satellite meeting the secure communication condition may be generated. Of course, it can be implemented in other embodiments, all of which belong to the protection scope of the embodiments of the present application, and will not give examples one by one here.

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

Specifically, the following formula is used to calculate the power assist parameter from the current base station to the satellite segment:

In the second step, according to the power auxiliary parameters of the current base station to satellite section, determine the legal signal transmission power and artificial auxiliary noise power of the base station to the satellite section.

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

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

Step 310b, according to the second security communication identification, add the legal signal transmission power of the base station and the artificial auxiliary noise power in the current base station to the satellite segment. In this way, by using the second safety communication identification, it is beneficial to quickly determine that the current base station to the satellite segment meets the safety communication conditions, improve the efficiency of artificial auxiliary noise power acquisition, and suppress malicious users in the satellite-ground communication network in a more efficient manner Eavesdropping, maximizing the uplink security capacity from the current base station to the satellite segment.

Step 410b, when it is determined that the current base station to the satellite section does not meet the safe communication conditions, in the case of a new current user access channel or the current user access channel again, return to the process of obtaining the current user access channel Channel information from the current user to the base station of the satellite-ground communication network. In this way, when it is determined that the current base station to the satellite section does not meet the safe communication conditions, the channel can be switched for the new current user or the current user's re-access, which can facilitate the new current user or the current user's re-access, Channel usage efficiency can also be improved.

The above step 410b may further include, but is not limited to, including initializing the communication identification of the current base station to satellite segment when it is determined that the current base station to satellite segment does not meet the safe communication conditions. Exemplarily, the flag FLAG2 of whether the safety communication condition is satisfied or not is set to 0.

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

和基站添加的基站人工辅助噪声功率

执行最优功率分配；Based on the power allocation performed by the above-mentioned base station power management center, the base station is divided into the segment from the current user to the base station, and the segment from the current base station to the satellite. For the corresponding power of the segment from the current user to the base station, the artificial auxiliary noise of the base station is added to suppress malicious users from eavesdropping, and the segment corresponding to the segment from the current base station to the satellite is increased. Power increase artificial auxiliary noise to suppress eavesdropping by malicious users; if both FLAG1 and FLAG2 are 1, in the current user-to-base station section, the uplink transmission power of the user is based on the maximum transmission power of the user

and the base station artificial auxiliary noise power added by the base station

Perform optimal power allocation;

和基站所分配的人工辅助噪声功率

执行最优功率分配，综合上述两个阶段进行星地通信网络的最优上行功率分配，以优化星地通信网络安全性能，否则，反馈当前用户无法进行安全通信传输，无最优上行功率分配方案。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

Perform 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 will be reported that the current user cannot perform secure communication transmission, and there is no optimal uplink power allocation scheme .

FIG. 5 is a schematic diagram of the uplink security capacity performance of the satellite-to-earth communication network provided by the embodiment of the present application.

基站到卫星上行链路采用Ka波段，带宽为B₂＝100MHz，地面信道使用瑞利信道模型，卫星信道使用莱斯信道模型，用户和基站最大发射功率为P^u,max＝23dBm和P^b,max＝30dBm，用户到基站上行传输中全双工模式的自干扰系数设定为ρ＝-110dB，基站到卫星的残余干扰系数假设为ρ^s＝0.01，用户和基站之间距离设定为50米。用户到基站链路与窃听者到基站链路的夹角为30°，窃听信道估计偏差界相比于路径损失为0.2，单个卫星服务的基站数目为100至500。参考图5，可以看出本申请实施例所提出的功率分配方法能够有效提升星地通信网络的安全容量性能，相比于未采用人工辅助噪声时至少提升平均安全容量242％，相比于当前用户到基站段最大功率、当前基站到卫星段平均功率分配策略提升平均安全容量6.6％到31.2％。As shown in Figure 1 and Figure 5, the satellite in Figure 1 is deployed in a 500 km orbit, the ground network bandwidth is B ₁ =10MHz, and the noise power spectral density is

The uplink from the base station to the satellite adopts the Ka band, the bandwidth is B ₂ =100MHz, the terrestrial channel uses the Rayleigh channel model, the satellite channel uses the Rice channel model, and the maximum transmission power of the user and the 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, the residual interference coefficient from the base station to the satellite is assumed to be ρ ^s = 0.01, and the distance between the user and the base station is set to 50 rice. The angle between the link from the user to the base station and the link from the eavesdropper to the base station is 30°, the estimated deviation bound of the eavesdropping channel compared to the path loss is 0.2, and the number of base stations served by a single satellite is 100 to 500. Referring to Figure 5, it 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-earth communication network. The maximum power of the user-to-base station section and the current average power allocation strategy from the base station to the satellite section increase the average safety capacity by 6.6% to 31.2%.

FIG. 6 is a schematic block diagram of a power allocation device for a satellite-to-earth communication network provided by an embodiment of the present application. The power distribution device of the satellite-ground communication network may include the following modules:

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

The power determining module 62 of the section from the current user to the base station is used to determine the artificial auxiliary noise power of the base station according to the channel information of the section from the current user to the base station when it is determined that the section from the current user to the base station meets the safety communication conditions;

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

The information collection module 64 of the current base station to the satellite section is used to obtain the channel information from the current base station to the satellite section of the satellite-ground communication network;

The power determination module 65 of the current base station to the satellite section is used to determine the legal signal transmission power of the base station to the satellite section according to the channel information of the current base station to the satellite section under the condition that the current base station to the satellite section meets the safe communication conditions and the artificial auxiliary noise power allocated by the base station;

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

In some embodiments, the power determination module 62 of the current user-to-base station section is specifically configured to generate a first secure communication identifier when it is determined that the current user-to-base station section meets the safe communication conditions, and to generate a first secure communication identifier according to the current user-to-base station section The channel information of the base station is used to determine the artificial auxiliary noise power of the base station, and the first safe communication identifier is used to identify that the current user is in a safe communication state to the base station;

The power allocation module 63 of the current user-to-base station segment is specifically configured to add base station legal signal transmission power and artificial auxiliary noise power in the current base station-to-satellite segment according to the first secure communication identification.

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

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

The device also includes a first safe communication condition determination module, which is used to determine that the current user to the base station meets the safe communication conditions, wherein the first safe communication condition determination module includes: a first channel gain ratio auxiliary parameter sub-module and a first safe communication Condition determination sub-module;

The first channel gain ratio auxiliary parameter submodule is used to determine the channel gain ratio auxiliary parameter from the current user to the base station;

The first safety communication condition determination submodule is used to determine that the current user-to-base station section meets secure communication conditions.

In some embodiments, the first channel gain ratio auxiliary parameter submodule includes: a unit for determining a channel gain factor and a unit for determining a transmission influence factor

The channel gain factor determination unit is used to determine the channel gain factor according to the eavesdropper's channel state information, the channel information transmitted by the user, and the base station full-duplex self-interference;

The determination unit of the transmission influence factor is used to determine the transmission influence factor of 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 parameters of the user transmission;

The first safe communication condition determining submodule includes a first safe communication condition determining unit;

The first safe communication condition determination unit is used to determine that the current user-to-base station section meets the safe communication conditions according to the channel gain factor being greater than 1 and the base station maximum transmission power being greater than the transmission impact factor.

In some embodiments, the eavesdropper channel state information includes the base station to the eavesdropper channel state information of the current user to the base station section and the current user to the eavesdropper channel state information of the current user to the base station section;

The channel gain factor determination unit is specifically used to determine the first channel gain ratio 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;

According to the channel information transmitted by the user and the current channel state information from the user to the eavesdropper, determine the ratio of the second channel gain from the user to the base station and from the user to the eavesdropper;

The determination unit of the transmission influence factor is specifically used to determine the first ratio of the base station full-duplex self-interference to the user transmission according to the channel information of the base station full-duplex self-interference and user transmission and the initialization parameters of the user transmission; The channel information of the information and the user transmission and the initialization parameters of the user transmission determine the second ratio of the noise at the receiving end of the base station to the user transmission;

The first safe communication condition determining 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 second channel gain Ratio The ratio of the adjusted first ratio to the adjusted second ratio.

In some embodiments, the power determination module 62 of the current user-to-base station section is specifically configured to determine the power assistance parameter of the current user-to-base station section according to the channel gain ratio auxiliary parameter of the current user-to-base station section; The power assistance parameter of the base station determines the artificial auxiliary noise power of the base station from the current user to the base station.

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

The power distribution module 66 of the current base station to the satellite segment is specifically configured to add the legal signal transmission power of the base station and the artificial auxiliary noise power in the current base station to the satellite segment according to the second secure communication identification.

In some embodiments, the device further includes a second safe communication condition determining module, configured to determine that the current base station to the satellite segment meets the safe communication condition, wherein the second safe communication condition determining module includes: a second channel gain ratio auxiliary parameter The module and the second safety communication condition determination submodule;

The second channel gain ratio auxiliary parameter submodule is used to determine the channel gain ratio auxiliary parameter from the current base station to the satellite segment;

The second safety communication condition determination sub-module is used to determine that the current base station to the satellite section meets the security requirements according to the channel gain ratio auxiliary parameter of the current base station to the satellite section under the constraint condition of the maximum safety capacity of the current base station to the satellite section communication conditions.

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

The second channel gain ratio auxiliary parameter sub-module is specifically used to determine the current base station to satellite channel and the current base station to eavesdropper channel status information according to the current base station to satellite channel gain and the current base station to satellite segment base station to eavesdropper channel state information The ratio of the three channel gains;

The second safe communication condition determination submodule is specifically used to determine the third ratio of noise to base station transmission according to the noise information of the satellite receiving end, the current base station to the satellite channel gain and the initialization parameters of the base station transmission; the second safe communication condition determination submodule A module including a second secure communication condition determining unit;

The second safe communication condition determining unit is used for comparing the third ratio adjusted by the ratio of the third channel gain with the sum of the residual interference coefficient of the satellite receiving end being less than 1.

In some embodiments, the second safe communication condition determination unit is specifically configured to determine the power assistance parameter from the current base station to the satellite section according to the channel gain ratio assistance parameter from the current base station to the satellite section; according to the power assistance parameter from the current base station to the satellite section Parameters to determine the legal signal transmission power of the base station and the artificial auxiliary noise power of the base station to the satellite segment.

In some embodiments, the power distribution device of the satellite-ground communication network also includes a first access determination module; the first access determination module is used to determine that the current user-to-base station section does not meet the safety communication conditions, and In the case of a new current user accessing the channel or the current user accessing the channel again, it returns to obtain the channel information from the current user to the base station section of the satellite-ground communication network when the current user accesses the channel.

In some embodiments, the power allocation device of the satellite-ground communication network further includes a second access determination module; the second access determination module is used to determine that the current base station to satellite segment does not meet the safety communication conditions, in the In the case of a new current user accessing the channel or the current user accessing the channel again, it returns to obtain the channel information from the current user to the base station section of the satellite-ground communication network when the current user accesses the channel.

The present application provides a base station power management center, including the above-mentioned device.

FIG. 7 is a block diagram of modules of a base station power management center provided by an embodiment of the present application.

As shown in FIG. 7 , the base station power management center 70 includes one or more processors 71 for implementing the power allocation method for the above-mentioned satellite-ground communication network.

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

The computer-readable storage medium 79 of the embodiment of the present application stores a program thereon, and when the program is executed by the processor 71, it is used to realize the power allocation method of the satellite-ground communication network as described above.

This application may take the form of a computer program product embodied on one or more computer readable storage media 79 (including but not limited to disk storage, CD-ROM, optical storage, etc.) with program code embodied therein. Computer-readable storage media 79 includes both volatile and non-volatile, removable and non-removable media that can be implemented in any method or technology for storage of information. Information may be computer readable instructions, data structures, modules of a program, 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 memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cartridge, tape magnetic disk storage or other magnetic storage device or any other non-transmission medium that may be used to store information that can be accessed by a computing device.

The above descriptions are only preferred embodiments of this specification, and are not intended to limit this specification. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this specification shall be included in this specification. within the scope of protection.

It should also be noted that the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes Other elements not expressly listed, or elements inherent in the process, method, commodity, or apparatus are also included. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

Claims (26)

1. A power distribution method of a satellite-ground communication network, characterized in that, comprising: Obtain channel information from the current user to the base station section of the satellite-ground communication network when the current user accesses the channel, and the channel information from the current user to the base station section includes user uplink transmit power; When it is determined that the section from the current user to the base station meets the safe communication conditions, determine the artificial auxiliary noise power of the base station according to the channel information from the section from the current user to the base station; Adding the artificial assisted noise power of the base station in the section from the current user to the base station, and performing optimal power allocation with the user uplink transmit power and the artificial assisted noise power of the base station; Obtain channel information from the current base station to the satellite segment of the satellite-ground communication network; When it is determined that the current base station to the satellite segment meets the safe communication conditions, according to the channel information of the current base station to the satellite segment, determine the legal signal transmission power of the base station to the satellite segment and the manual assistance allocated by the base station noise power; Adding the legal signal transmission power of the base station and the artificial auxiliary noise power in the section from the current base station to the satellite, and performing optimal power allocation with the legal signal transmission power of the base station and the artificial auxiliary noise power. 2. The power distribution method of the satellite-ground communication network as claimed in claim 1, characterized in that, in the case of determining that the section from the current user to the base station meets the safety communication condition, according to the section from the current user to the base station The channel information of the base station is used to determine the artificial auxiliary noise power of the base station, including: When it is determined that the section from the current user to the base station meets the safe communication conditions, a first safe communication identifier is generated, and according to the channel information from the current user to the base station, the artificial auxiliary noise power of the base station is determined, and the first safe communication The communication identification is used to identify that the current user to the base station is in a safe communication state; The adding the legal signal transmission power of the base station and the artificial auxiliary noise power in the section from the current base station to the satellite includes: Adding the legal signal transmission power of the base station and the artificial auxiliary noise power in the section from the current base station to the satellite according to the first secure communication identification. 3. the power distribution method of satellite-ground communication network as claimed in claim 1 is characterized in that, the channel information of described current user to base station section comprises the channel information of user transmission and current user to the eavesdropper's channel state information of base station section ; The initialization parameters of the satellite-ground communication network include full-duplex self-interference information of the base station, noise information of the receiving end of the base station, initialization parameters of user transmission and the maximum transmission power of the base station; The determining that the section from the current user to the base station meets the safety communication conditions includes: determining the auxiliary parameter of the channel gain ratio from the current user to the base station; In the case of the constraint condition of maximizing the safety capacity of the current user-to-base station section, according to the channel gain ratio auxiliary parameter of the current user-to-base station section, it is determined that the current user-to-base station section meets the safety communication condition. 4. The power allocation method of satellite-ground communication network as claimed in claim 3, is characterized in that, described determining described current user to the channel gain ratio auxiliary parameter of base station segment, comprises: determining a channel gain factor according to the channel state information of the eavesdropper, the channel information transmitted by the user, and the full-duplex self-interference of the base station; According to the noise information of the receiving end of the base station, the channel information of the user transmission, and the initialization parameters of the user transmission, determine the transmission influence factor of the influence of noise interference on the transmission; The determining that the section from the current user to the base station meets the safety communication conditions includes: According to the fact that the channel gain factor is greater than 1 and the maximum transmit power of the base station is greater than the transmission impact factor, it is determined that the current user-to-base station section meets a safe communication condition. 5. the power distribution method of satellite-ground communication network as claimed in claim 4 is characterized in that, described eavesdropper channel state information comprises current user to the base station of base station section to eavesdropper channel state information and current user to base station section current User to eavesdropper channel status information; The determining the channel gain factor based on the channel state information of the eavesdropper, the channel information transmitted by the user, and the full-duplex self-interference of the base station includes: According to the base station to the eavesdropper and the base station full-duplex self-interference information, determine the first channel gain ratio of the base station to the eavesdropper and the base station self-interference channel; According to the channel information transmitted by the user and the current channel state information from the user to the eavesdropper, determine the ratio of the second channel gain from the user to the base station and from the user to the eavesdropper; The determining the transmission impact factor of noise interference on transmission based on the noise information of the receiving end of the base station, the channel information of the user transmission, and the initialization parameters of the user transmission includes: 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, determine a first ratio of the full-duplex self-interference of the base station to the user transmission; determining a second ratio of the noise at the receiving end of the base station to the user transmission according to the noise information at the receiving end of the base station, the channel information transmitted by the user, and the initialization parameters of the user transmission; According to the fact that the channel gain factor is greater than 1 and the maximum transmit power of the base station is greater than the transmission impact factor, determining that the current user-to-base station section meets the safe communication conditions includes: 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 transmit power of the base station is greater than the ratio adjusted by the second channel gain The ratio of the first ratio of to the adjusted second ratio. 6. The power allocation method of the satellite-ground communication network as claimed in claim 3, wherein, according to the channel information from the current user to the base station section, determine the user uplink transmit power from the current user to the base station and base station artificial auxiliary noise power, including: According to the channel gain ratio auxiliary parameter of the current user to the base station section, determine the power assistance parameter of the current user to the base station section; According to the power assistance parameter of the section from the current user to the base station, determine the artificial auxiliary noise power of the base station of the section from the current user to the base station. 7. The power allocation method of satellite-ground communication network as claimed in claim 1, is characterized in that, under the situation that described described current base station is determined to satellite section meets safety communication condition, according to described current base station to satellite section The channel information of the base station to determine the legal signal transmission power of the base station to the satellite segment and the artificial auxiliary noise power allocated by the base station, including: When it is determined that the current base station to the satellite section meets the safety communication conditions, generate a second safety communication identification, and determine the legal signal transmission of the base station to the satellite section from the base station to the satellite section according to the channel information of the current base station to the satellite section power and the artificial auxiliary noise power allocated by the base station; the second safety communication identification is used to identify that the current base station to satellite segment is in a safety communication state; The adding the legal signal transmission power of the base station and the artificial auxiliary noise power in the section from the current base station to the satellite includes: Adding the legal signal transmission power of the base station and the artificial auxiliary noise power in the section from the current base station to the satellite according to the second secure communication identification. 8. The power allocation method of the satellite-ground communication network as claimed in claim 1, wherein said determining that said current base station meets a safety communication condition to a satellite segment comprises: determining the auxiliary parameter of the channel gain ratio from the current base station to the satellite segment; In the case of the constraint condition of maximizing the safety capacity of the current base station to the satellite segment, according to the channel gain ratio auxiliary parameter 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 condition. 9. The power allocation method of satellite-ground communication network as claimed in claim 8, is characterized in that, the channel information of described current base station to satellite section comprises described current base station to satellite channel gain and described current base station to satellite section Current base station to eavesdropper channel status information; The initialization parameters of the satellite-ground communication network include noise information at the satellite receiving end, initialization parameters transmitted by the base station, and residual interference coefficients at the satellite receiving end; The determination of the auxiliary parameter of the channel gain ratio from the current base station to the satellite segment includes: 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, determine the ratio of the third channel gain between the current base station to the satellite channel and the current base station to the eavesdropper channel ; determining a third ratio of noise to base station transmission according to the noise information of the satellite receiving end, the current base station to satellite channel gain, and the initialization parameters of the base station transmission; According to the channel gain ratio auxiliary parameter of the current base station to the satellite segment, determining that the current base station to the satellite segment meets the safety communication conditions includes: The sum of the third ratio adjusted by the ratio of the third channel gain and the residual interference coefficient of the satellite receiving end is less than 1. 10. The power allocation method of satellite-ground communication network as claimed in claim 9, is characterized in that, described according to the channel information of described current base station to satellite section, determine described base station to the base station legal signal transmission power of satellite section and The artificial auxiliary noise power allocated by the base station, including: determining a power assist parameter from the current base station to the satellite segment according to the channel gain ratio auxiliary parameter from the current base station to the satellite segment; According to the power assistance parameters of the current base station to satellite section, determine the legal signal transmission power of the base station to the satellite section and the artificial auxiliary noise power. 11. the power distribution method of satellite-ground communication network as claimed in claim 1, is characterized in that, the power distribution method of described satellite-ground communication network also comprises: When it is determined that the section from the current user to the base station does not meet the safe communication conditions, in the case of a new current user accessing the channel or the current user accessing the channel again, return to the process of obtaining the current user access channel information of the channel from the current user to the base station of the satellite-ground communication network. 12. the power distribution method of satellite-ground communication network as claimed in claim 1, is characterized in that, the power distribution method of described satellite-ground communication network also comprises: When it is determined that the current base station to the satellite section does not meet the safe communication conditions, in the case of a new current user access channel or the current user access channel again, return to the acquisition of current user access channel information of the channel from the current user to the base station of the satellite-ground communication network. 13. A power distribution device for a satellite-to-earth communication network, characterized in that it comprises: The information collection module from the current user to the base station section is used to obtain the channel information from the current user to the base station section of the satellite-ground communication network when the current user accesses the channel, and the channel information from the current user to the base station section includes the user uplink transmit power; The power determining module of the section from the current user to the base station is used to determine the artificial auxiliary noise power of the base station according to the channel information of the section from the current user to the base station when it is determined that the section from the current user to the base station meets the safe communication conditions; The power allocation module of the section from the current user to the base station is used to add the artificial assisted noise power of the base station in the section from the current user to the base station, and perform optimal power with the user uplink transmission power and the artificial assisted noise power of the base station distribute; An information collection module from the current base station to the satellite segment, used to obtain channel information from the current base station to the satellite segment of the satellite-ground communication network; The power determining module of the current base station to the satellite segment is used to determine the power of the base station to the satellite segment 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 safe communication conditions The legal signal transmission power of the base station and the artificial auxiliary noise power allocated by the base station; The power allocation module of the current base station to the satellite section is used to add the legal signal transmission power of the base station and the artificial auxiliary noise power in the current base station to the satellite section, and use the legal signal transmission power of the base station and the artificial auxiliary noise Power performs optimal power allocation. 14. The power distribution device of the satellite-ground communication network according to claim 13, wherein the power determination module of the section from the current user to the base station is specifically used to determine that the section from the current user to the base station meets the safety communication requirements. condition, generate a first secure communication identifier, and determine the artificial auxiliary noise power of the base station according to the channel information from the current user to the base station section, and the first secure communication identifier is used to identify that the current user to the base station section is in secure communication state; The power allocation module of the current user-to-base station section is specifically configured to add the legal signal transmission power of the base station and the artificial auxiliary noise power in the section from the current base station to the satellite according to the first secure communication identifier. 15. The power distributing device of satellite-ground communication network as claimed in claim 13, is characterized in that, the channel information of described current user to base station segment comprises the channel information of user transmission and the eavesdropper channel state information of current user to base station segment ; The initialization parameters of the satellite-ground communication network include full-duplex self-interference information of the base station, noise information of the receiving end of the base station, initialization parameters of user transmission and the maximum transmission power of the base station; The device also includes a first safe communication condition determination module, configured to determine that the current user-to-base station section meets a safe communication condition, wherein the first safe communication condition determination module includes: a first channel gain ratio auxiliary parameter The module and the first safety communication condition determination submodule; The first channel gain ratio auxiliary parameter submodule is used to determine the channel gain ratio auxiliary parameter from the current user to the base station; The first secure communication condition determining submodule is configured to determine the channel gain ratio auxiliary parameter of the current user-to-base station section under the constraints of the maximum security capacity of the current user-to-base station section. The current segment from the user to the base station meets the safe communication conditions. 16. The power allocation device of the satellite-ground communication network according to claim 15, wherein the first channel gain ratio auxiliary parameter submodule includes: a determination unit of the channel gain factor and the transmission influence factor unit of determination A channel gain factor determining unit, configured to determine a channel gain factor based on the eavesdropper's channel state information, the channel information transmitted by the user, and the base station full-duplex self-interference; The determining unit of the transmission influence factor is used to determine the transmission influence factor of noise interference on the transmission according to the noise information of the receiving end of the base station, the channel information of the user transmission and the initialization parameters of the user transmission; The first safe communication condition determining submodule includes a first safe communication condition determining unit; The first safe communication condition determining unit is configured to determine that the current user-to-base station section meets a safe communication condition according to 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. 17. The power distributing device of satellite-ground communication network as claimed in claim 16, it is characterized in that, described eavesdropper channel state information comprises the base station of current user to base station section to eavesdropper channel state information and current user to base station section current User to eavesdropper channel status information; The determining unit of the channel gain factor 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 full-duplex self-interference information from the base station to the eavesdropper and the base station; According to the channel information transmitted by the user and the current channel state information from the user to the eavesdropper, determine the ratio of the second channel gain from the user to the base station and from the user to the eavesdropper; The determining unit of the transmission influence factor is specifically used to determine the full-duplex self-interference of the base station and the user transmission channel information and the initialization parameters of the user transmission according to the full-duplex self-interference of the base station and the user transmission. The first ratio of the first ratio; according to the noise information of the receiving end of the base station, the channel information of the user transmission and the initialization parameters of the user transmission, determine the second ratio of the noise of the receiving end of the base station to the user transmission; The first safe communication condition determination unit is specifically configured to 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 has a maximum The transmit power is greater than the ratio of the first ratio adjusted by the second channel gain ratio to the adjusted second ratio. 18. The power distribution device of the satellite-ground communication network as claimed in claim 15, wherein the power determination module of the section from the current user to the base station is specifically used to assist the channel gain ratio of the section from the current user to the base station. Parameters, determine the power assistance parameter of the section from the current user to the base station; determine the artificial auxiliary noise power of the base station in the section from the current user to the base station according to the power assistance parameter of the section from the current user to the base station. 19. The power distribution device of the satellite-ground communication network according to claim 13, wherein the power determination module of the current base station to the satellite section is specifically used to determine that the current base station to the satellite section meets the safety communication requirements. In the case of a certain condition, generate a second security communication identification, and determine the legal signal transmission power of the base station from the base station to the satellite segment and the artificial auxiliary noise power allocated by the base station according to the channel information from the current base station to the satellite segment; The second secure communication identifier is used to identify that the current base station to satellite segment is in a secure communication state; The power distribution module of the current base station to satellite section is specifically configured to add the legal signal transmission power of the base station and the artificial auxiliary noise power in the current base station to satellite section according to the second secure communication identification. 20. The power distribution device of the satellite-ground communication network as claimed in claim 13, characterized in that, the device also includes a second safe communication condition determining module, which is used to determine that the current base station to the satellite section meets the safe communication condition , wherein the second safe communication condition determination module includes: a second channel gain ratio auxiliary parameter submodule and a second safe communication condition determination submodule; The second channel gain ratio auxiliary parameter submodule is used to determine the channel gain ratio auxiliary parameter from the current base station to the satellite segment; The second safety communication condition determination submodule is used to determine the current base station to the satellite segment according to the channel gain ratio auxiliary parameter of the current base station to the satellite segment under the constraints of the maximum safety capacity of the current base station to the satellite segment. It is stated that the current base station to satellite section meets the safe communication conditions. 21. The power allocation device of satellite-ground communication network as claimed in claim 20, it is characterized in that, the channel information of described current base station to satellite section comprises described current base station to satellite channel gain and described current base station to satellite section Current base station to eavesdropper channel status information; The initialization parameters of the satellite-ground communication network include noise information at the satellite receiving end, initialization parameters transmitted by the base station, and residual interference coefficients at the satellite receiving end; The second channel gain ratio auxiliary parameter submodule is specifically used to determine the current base station-to-satellite channel and The ratio of the third channel gain of the current base station to the eavesdropper channel; The second safe communication condition determination submodule is specifically configured to determine a third ratio of noise to base station transmission according to the noise information of the satellite receiving end, the current base station to satellite channel gain, and the initialization parameters of the base station transmission; The second safe communication condition determining submodule includes a second safe communication condition determining unit; The second safe communication condition determination unit is used for comparing the third ratio adjusted by the ratio of the third channel gain with the sum of the residual interference coefficient of the satellite receiving end being less than 1. 22. The power distribution device of the satellite-ground communication network according to claim 21, wherein the second safe communication condition determination unit is specifically configured to use the channel gain ratio auxiliary parameter from the current base station to the satellite segment, Determine the power assist parameter of the current base station to the satellite segment; determine the legal signal transmission power of the base station and the artificial auxiliary noise power of the base station to the satellite segment according to the power assist parameter of the current base station to satellite segment. 23. The power distribution device of the satellite-ground communication network as claimed in claim 13, wherein the power distribution device of the satellite-ground communication network further comprises a first access determination module; The first access determination module is configured to, when it is determined that the section from the current user to the base station does not meet the safe communication conditions, when a new current user accesses a channel or the current user accesses a channel again , returning to performing the acquisition of the channel information from the current user to the base station section of the satellite-ground communication network when the current user accesses the channel. 24. The power distribution device of the satellite-ground communication network as claimed in claim 13, wherein the power distribution device of the satellite-ground communication network further comprises a second access determination module; The second access determination module is configured to, when it is determined that the current base station to the satellite section does not meet the safe communication conditions, when a new current user accesses a channel or the current user accesses a channel again , returning to performing the acquisition of the channel information from the current user to the base station section of the satellite-ground communication network when the current user accesses the channel. 25. A base station power management center, comprising the device according to any one of claims 13-24. 26. A computer-readable storage medium, on which computer instructions are stored, wherein the method according to any one of claims 1-12 is implemented when the instructions are executed by a processor.

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