CN113891446B - Transmitting power configuration method, transmitting power configuration device, server and storage medium - Google Patents
Transmitting power configuration method, transmitting power configuration device, server and storage medium Download PDFInfo
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- CN113891446B CN113891446B CN202111224108.5A CN202111224108A CN113891446B CN 113891446 B CN113891446 B CN 113891446B CN 202111224108 A CN202111224108 A CN 202111224108A CN 113891446 B CN113891446 B CN 113891446B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
- H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/50—TPC being performed in particular situations at the moment of starting communication in a multiple access environment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention provides a transmitting power configuration method, a transmitting power configuration device, a server and a storage medium, relates to the technical field of communication, solves the problems of interference avoidance and power configuration of a space-based network and a foundation network in a space-earth integrated communication network in the prior art, improves the spectrum utilization efficiency, and realizes network collaborative planning. The method comprises the following steps: acquiring a ground IMT base station power value set and an HIBS base station power value set; determining at least one power configuration combination meeting preset conditions based on the ground IMT base station power value set and the HIBS base station power value set; determining a target power configuration combination, wherein the target power configuration combination is the power configuration combination with the minimum total power consumption of the corresponding network in the at least one power configuration combination; and configuring transmitting power for all the ground IMT base stations and all the HIBS base stations in the target area based on the target power configuration combination.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, a server, and a storage medium for configuring transmit power.
Background
At present, a satellite communication network and a ground communication network are separately deployed and independently run. Specifically, in an area covered with satellite signals, a User Equipment (UE) may complete a process of acquiring service data based on a communication device included in a satellite communication network; in the area covered with the ground signal, the UE may also complete the process of acquiring service data based on the communication device included in the ground communication network.
However, in the prior art, in order to avoid signal interference between the satellite communication network and the terrestrial communication network, a certain frequency guard band may need to be set for the satellite communication network, that is, different frequency resources are respectively configured for the satellite communication network and the terrestrial communication network. As such, spectrum usage may be reduced, affecting the effectiveness of the communication process.
Disclosure of Invention
The invention provides a transmitting power configuration method, a transmitting power configuration device, a server and a storage medium, which solve the problems of interference avoidance and power configuration of a space-based network and a foundation network in a space-earth integrated communication network in the prior art, improve the spectrum utilization efficiency and realize network collaborative planning.
In a first aspect, the present invention provides a method for configuring transmit power, including obtaining a ground international mobile communication (international mobile telecommunications, IMT) base station power value set and an overhead platform (high altitude platforms as IMT base stations, HIBS) base station power value set, where the ground IMT base station power value set is used to represent a range of transmit power of a ground IMT base station, and the HIBS base station power value set is used to represent a range of transmit power of a HIBS base station; determining at least one power configuration combination meeting preset conditions based on the ground IMT base station power value set and the HIBS base station power value set, wherein one power configuration combination comprises: transmitting power values of all the ground IMT base stations and all the HIBS base stations in the target area; determining a target power configuration combination, wherein the target power configuration combination is the power configuration combination with the minimum total power consumption of the corresponding network in the at least one power configuration combination; and configuring transmitting power for all the ground IMT base stations and all the HIBS base stations in the target area based on the target power configuration combination.
In a second aspect, the present invention provides a transmit power configuration apparatus, including: the device comprises an acquisition module, a determination module and a processing module; the acquisition module is used for acquiring a ground IMT base station power value set and an HIBS base station power value set, wherein the ground IMT base station power value set is used for representing the value range of the transmitting power of the ground IMT base station, and the HIBS base station power value set is used for representing the value range of the transmitting power of the HIBS base station; the determining module is configured to determine at least one power configuration combination that meets a preset condition based on the ground IMT base station power value set and the HIBS base station power value set, where the one power configuration combination includes: the transmitting power of all the ground IMTs and all the HIBS base stations in the target area is valued; the determining module is further configured to determine a target power configuration combination, where the target power configuration combination is a power configuration combination with the minimum total power consumption of the corresponding network in the at least one power configuration combination; the processing module is configured to configure transmit power for all the ground IMT base stations and all the HIBS base stations in the target area based on the target power configuration combination.
In a third aspect, the present invention provides a server comprising: a processor and a memory configured to store processor-executable instructions; wherein the processor is configured to execute the instructions to implement any of the above-described alternative transmit power configuration methods of the first aspect.
In a fourth aspect, the present invention provides a computer readable storage medium having instructions stored thereon which, when executed by a server, enable the server to perform any one of the above-described alternative transmit power configuration methods of the first aspect.
In a fifth aspect, the invention provides a computer program product comprising computer instructions which, when run on a server, cause the server to perform the optional transmit power configuration method as in any of the first aspects.
According to the transmitting power configuration method, the transmitting power configuration device, the server and the storage medium, the server can acquire the ground IMT base station power value set and the HIBS base station power value set, and then at least one power configuration combination meeting preset conditions is determined based on the ground IMT base station power value set and the HIBS base station power value set. Because each power configuration combination in the at least one power configuration combination comprises the transmitting power values of all the ground IMT base stations and all the HIBS base stations, and because all the ground IMT base stations and all the HIBS base stations belong to the same coverage area (namely a target area), and the frequency bands adopted by all the ground IMT base stations and all the HIBS base stations are the same; in this way, by adjusting the transmitting power of the all ground IMT base stations and the transmitting power of the all HIBS base stations, specifically configuring the transmitting power included in each power configuration combination for the all ground INT base stations and the all HIBS base stations, the ground communication network (specifically, the network established based on the all ground IMT base stations) and the overhead communication network (specifically, the network established based on the all HIBS base stations) can use the same frequency band resources under the condition of covering the same area, and can improve the spectrum utilization rate. And the server can also determine the power configuration combination with the minimum total network power consumption corresponding to the at least one power configuration combination as a target power configuration combination, and configure the transmitting power for all the ground IIMT base stations and all the HIBS base stations based on the target power configuration combination, so that the power cost can be reduced, and the effectiveness of network optimization can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a schematic diagram of a network architecture of a communication system according to an embodiment of the present invention;
fig. 2 is a schematic hardware diagram of a server according to an embodiment of the present invention;
fig. 3 is a flow chart of a method for configuring transmission power according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a transmitting power configuration device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another transmit power configuration apparatus according to an embodiment of the present invention.
Detailed Description
The method, the device, the server and the storage medium for configuring the transmitting power provided by the embodiment of the invention are described in detail below with reference to the accompanying drawings.
Furthermore, references to the terms "comprising" and "having" and any variations thereof in the description of the present application are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed but may optionally include other steps or elements not listed or inherent to such process, method, article, or apparatus.
It should be noted that, in the embodiments of the present invention, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment of the present invention is not to be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.
The term "and/or" as used herein includes the use of either or both of these methods.
In the description of the present application, unless otherwise indicated, the meaning of "a plurality" means two or more.
Based on the problems existing in the background technology, the embodiment of the invention provides a transmitting power configuration method, a transmitting power configuration device, a server and a storage medium, wherein the server can acquire a ground IMT base station power value set and an HIBS base station power value set, and then determine at least one power configuration combination meeting preset conditions based on the ground IMT base station power value set and the HIBS base station power value set. Because each power configuration combination in the at least one power configuration combination comprises the transmitting power values of all the ground IMT base stations and all the HIBS base stations, and because all the ground IMT base stations and all the HIBS base stations belong to the same coverage area (namely a target area), and the frequency bands adopted by all the ground IMT base stations and all the HIBS base stations are the same; in this way, by adjusting the transmitting power of the all ground IMT base stations and the transmitting power of the all HIBS base stations, specifically configuring the transmitting power included in each power configuration combination for the all ground INT base stations and the all HIBS base stations, the ground communication network (specifically, the network established based on the all ground IMT base stations) and the overhead communication network (specifically, the network established based on the all HIBS base stations) can use the same frequency band resources under the condition of covering the same area, and can improve the spectrum utilization rate. And the server can also determine the power configuration combination with the minimum total network power consumption corresponding to the at least one power configuration combination as a target power configuration combination, and configure the transmitting power for all the ground IIMT base stations and all the HIBS base stations based on the target power configuration combination, so that the power cost can be reduced, and the effectiveness of network optimization can be improved.
Fig. 1 is a schematic diagram of a network architecture of a communication system according to an embodiment of the present invention. As shown in fig. 1, the communication system includes base station 101, base station 102, base station 103, base station 104, base station 105, base station 106, base station 107, UE 108, UE 109, UE 110, UE 111, UE 112, UE 113, and UE 114.
Wherein the UE may establish a communication connection with the base station. Specifically, UE 108, UE 109, and UE 110 may establish communication connections with base station 101, base station 102, base station 103, and base station 104. UE 111 and UE 112 may establish a communication connection with base station 105 and base station 106, or may establish a communication connection with base station 107. UE 113 and UE 114 may establish a communication connection with base station 107.
It should be noted that, 7 base stations and 7 UEs shown in fig. 1 are an example in the implementation of the present invention, and the number of base stations and the number of UEs are not specifically limited in the embodiment of the present invention.
Fig. 2 is a schematic diagram of a hardware structure of a server for executing the method for configuring transmission power according to the embodiment of the present invention. As shown in fig. 2, the server 20 includes a processor 201, a memory 202, a network interface 203, and the like.
The processor 201 is a core component of the server 20, and the processor 201 is configured to run an operating system of the server 20 and application programs (including a system application program and a third party application program) on the server 20, so as to implement a transmit power configuration method of the server 20.
In an embodiment of the present invention, the processor 201 may be a central processing unit (central processing unit, CPU), microprocessor, digital signal processor (digital signal processor, DSP), application-specific integrated circuit (application-specific integrated circuit, ASIC), field programmable gate array (field programmable gate array, FPGA) or other programmable logic device, transistor logic device, hardware components, or any combination thereof, capable of implementing or executing the various exemplary logic blocks, modules and circuits described in connection with the disclosure of embodiments of the present invention; a processor may also be a combination that performs computing functions, e.g., including one or more microprocessors, a combination of a DSP and a microprocessor, and the like.
Optionally, the processor 201 of the server 20 includes one or more CPUs, either single-core or multi-core.
Optionally, the processor 201 implements the transmit power configuration method in the embodiment of the present invention by reading the instruction stored in the memory 202, or the processor 201 implements the transmit power configuration method provided in the embodiment of the present invention by an instruction stored internally. In the case where the processor 201 implements the transmission power configuration method provided by the embodiment of the present invention by reading the execution stored in the memory, the instruction for implementing the transmission power configuration method provided by the embodiment of the present invention is stored in the memory.
The network interface 203 is a wired interface such as a fiber optic distributed data interface (fiber distributed data interface, FDDI), gigabit Ethernet (GE) interface. Alternatively, the network interface 203 is a wireless interface. The network interface 203 is used for the server 20 to communicate with other devices.
The memory 202 is used to store a ground IMT base station power take-off set and an HIBS base station power take-off set. The at least one processor 201 further performs the methods described in the embodiments of the present invention based on the set of ground IMT base station power values and the set of HIBS base station power values stored in the memory 202. For more details on the implementation of the above-described functions by the processor 201, reference is made to the description of the various method embodiments described below.
Optionally, the server 20 further comprises a bus, and the processor 201 and the memory 202 are connected to each other via a bus 204, or connected to each other in other manners.
Optionally, the server 20 further comprises an input-output interface 205, and the input-output interface 205 is configured to connect with an input device, and receive a transmit power configuration request input by a user through the input device. Input devices include, but are not limited to, a keyboard, touch screen, microphone, and the like. The input/output interface 205 is further configured to be connected to an output device, and output a transmit power configuration result of the processor 201 (i.e. configure transmit power for all the terrestrial IMT base stations and all the HIBS base stations). Output devices include, but are not limited to, displays, printers, and the like.
As shown in fig. 3, the method for configuring transmission power provided in the embodiment of the present invention may include S101-S104.
S101, a server acquires a ground IMT base station power value set and an HIBS base station power value set.
The ground IMT base station power value set is used for representing the value range of the transmitting power of the ground IMT base station, and the HIBS base station power value set is used for representing the value range of the transmitting power of the HIBS base station.
It should be understood that the set of ground IMT base station power values may include a plurality of transmit power values, for example, 20dbm (decibel milliwatt), 24dbm, 26dbm, and the like, and the server may select a certain value from the plurality of transmit power values as the transmit power of a certain ground IMT base station. Similarly, the HIBS base station power value set also includes a plurality of transmit power values, and the server may also select a certain value from the HIBS base station power value set as the transmit power of a certain HIBS base station.
It can be understood that the server can obtain the ground IMT base station power value set and the HIBS base station power value set from other devices; the ground IMT base station power value set and the HIBS base station power value set may also be stored in advance in the memory of the server, so that the server may obtain the ground IMT base station power value set and the HIBS base station power value set from the memory.
Illustratively, base stations 101, 102, 103, 104, 105 and 106 in fig. 1 are ground IMT base stations; the base station 107 in fig. 1 described above is an HIBS base station.
S102, the server determines at least one power configuration combination meeting preset conditions based on the ground IMT base station power value set and the HIBS base station power value set.
Wherein, a power configuration combination comprises: and the transmitting power of all the ground IMT base stations and all the HIBS base stations in the target area is valued.
It should be understood that the target area may include all the terrestrial IMT base stations and all the HIBS base stations, and the target area is an area covered by all the terrestrial IMT base stations and all the HIBS base stations, that is, the target area includes both signals covered by the terrestrial IMT base stations and signals covered by the HIBS base stations. In the embodiment of the invention, the data (or signal) transmission is carried out by adopting the same frequency band for all the ground IMT base stations and all the HIBS base stations.
It is understood that the server may determine a plurality of power configuration combinations based on the ground IMT base station power value set and the HIBS base station power value set, and then determine at least one power configuration combination satisfying the preset condition from the plurality of power configuration combinations.
Specifically, for any one of the power configuration combinations, the server may select a plurality of transmit power values from the set of power values of the ground IMT base stations, and then use the plurality of transmit power values as transmit power values of all the ground IMT base stations, that is, transmit power values of the plurality of ground IMT base stations included in the any one of the power configuration combinations; similarly, the server may also select a plurality of transmit power values from the set of HIBS base station power values, and then use the plurality of transmit power values as the transmit power values of all HIBS base stations. Further, when the arbitrary power configuration combination meets the preset condition, determining the arbitrary power configuration combination as one of the at least one power configuration combination.
S103, the server determines a target power configuration combination.
The target power configuration combination is a power configuration combination with the minimum total power consumption of the corresponding network in the at least one power configuration combination.
It should be understood that the total network power consumption corresponding to each power configuration combination of the at least one power configuration combination is used to characterize the power consumption of the target area under each power configuration combination, which may be specifically understood as the power consumption under each power configuration combination when the ground IMT base station and the HIBS base station are cooperatively networked. In an actual application scene, the electric charge and the power consumption are in a direct proportion relation, so that the server determines the power configuration combination with the minimum total power consumption of the corresponding network as the target power configuration combination, the electric cost can be reduced, and the effect of further optimizing the cooperative networking is achieved.
S104, the server configures transmitting power for all the ground IMT base stations and all the HIBS base stations based on the target power configuration combination.
In connection with the description of the above embodiments, it should be understood that the all ground IMT base stations and the all HIBS base stations are the ground IMT base stations and the HIBS base stations included in the target area.
In the embodiment of the invention, the server configures the transmitting power for all the ground IMT base stations based on the target power configuration combination, namely, determines the transmitting power value of all the ground IMT base stations included in the target power configuration combination as the transmitting power of each of all the ground IMT base stations, and configures the transmitting power of each of all the ground IMT base stations for all the ground IMT base stations. Similarly, the server determines the transmission power values of the all the HIBS base stations included in the target power configuration combination as the respective transmission powers of the all the HIBS base stations, and configures the respective transmission powers of the all the HIBS base stations for the all the HIBS base stations.
According to the transmitting power configuration method provided by the embodiment of the invention, the server can acquire the ground IMT base station power value set and the HIBS base station power value set, and then at least one power configuration combination meeting preset conditions is determined based on the ground IMT base station power value set and the HIBS base station power value set. Because each power configuration combination in the at least one power configuration combination comprises the transmitting power values of all the ground IMT base stations and all the HIBS base stations, and because all the ground IMT base stations and all the HIBS base stations belong to the same coverage area (namely a target area), and the frequency bands adopted by all the ground IMT base stations and all the HIBS base stations are the same; in this way, by adjusting the transmitting power of the all ground IMT base stations and the transmitting power of the all HIBS base stations, specifically configuring the transmitting power included in each power configuration combination for the all ground INT base stations and the all HIBS base stations, the ground communication network (specifically, the network established based on the all ground IMT base stations) and the overhead communication network (specifically, the network established based on the all HIBS base stations) can use the same frequency band resources under the condition of covering the same area, and can improve the spectrum utilization rate. And the server can also determine the power configuration combination with the minimum total network power consumption corresponding to the at least one power configuration combination as a target power configuration combination, and configure the transmitting power for all the ground IIMT base stations and all the HIBS base stations based on the target power configuration combination, so that the power cost can be reduced, and the effectiveness of network optimization can be improved.
In an implementation manner of the embodiment of the present invention, the preset conditions include a first preset condition, a second preset condition, and a third preset condition. The first preset condition is that a signal-to-interference-plus-noise ratio (signal to interference plus noise ratio, SINR) of each UE in the plurality of UEs included in the target area is greater than or equal to an SINR threshold, the second preset condition is that average interference power corresponding to the plurality of UEs is less than or equal to an interference power threshold, and the third preset condition is that an HIBS base station energy utilization corresponding to the target area is greater than or equal to an energy utilization threshold.
It should be understood that, because the transmission rate corresponding to a certain UE is in a direct proportion to the SINR of the UE, in order to make the transmission rates corresponding to the UEs meet a certain requirement, the SINR of each UE in the UEs may be greater than or equal to the SINR threshold (i.e. meet a first preset condition), so as to improve (or ensure) the efficiency of obtaining service data by each UE, and improve user experience.
It may be understood that, for a certain UE, the UE may be connected to only a certain class of base stations (i.e., a terrestrial IMT base station or an HIBS base station) at the same time, and specifically may perform signal transmission and reception through a certain base station in the certain class of base stations. When the UE is connected with a certain ground IMT base station, a part of HIBS base stations possibly generate interference signals for the UE; when a UE connects to a certain HIBS base station, there may be some ground IMT base stations that generate interference signals to the UE. In the embodiment of the invention, the average interference power corresponding to the plurality of UEs is smaller than or equal to the interference power threshold, namely the influence of the interference signal on the plurality of UEs is reduced, so that the effectiveness of receiving and transmitting useful signals of the plurality of UEs is improved.
In the embodiment of the present invention, the energy utilization rate of the HIBS base station corresponding to the target area may be a ratio of useful energy corresponding to the plurality of HIBS base stations to total energy corresponding to the plurality of HIBS base stations. According to the method and the device for determining the total energy of the HIBS, the energy utilization rate of the HIBS corresponding to the target area is determined to be greater than or equal to the energy utilization threshold, namely, the total energy corresponding to (or generated by) all the HIBS is determined to be fully utilized, and the service efficiency of the HIBS can be improved.
In an implementation manner of the embodiment of the present invention, the method for configuring transmission power provided in the embodiment of the present invention further includes step a.
Step A, the server determines that the SINR of the kth UE in the plurality of UEs included in the target area satisfies the following formula:
wherein SINR k Representing SINR of the kth UE, P representing transmission power of a transmission base station corresponding to the kth UE, the transmission base station being a base station having communication connection with the kth UE, the transmission base station being of a type of a ground IMT base station or HIBS base station, PL k Representing transmission loss between the kth UE and the transmitting base station, I k And the interference power corresponding to the kth UE is represented, and k is more than or equal to 1.
It should be understood that the plurality of UEs are UEs included in the target area described above. When the type of the transmitting base station corresponding to the kth UE is a ground IMT base station, the transmitting base station is a base station having communication connection with the kth UE in all the ground IMT base stations, and the transmitting power of the transmitting base station may be a transmitting power value of the transmitting base station included in any one of the power configuration combinations. Similarly, when the type of the transmitting base station corresponding to the kth UE is an HIBS base station, the transmitting base station is the base station having communication connection with the kth UE in all the HIBS base stations.
The transmission loss between the kth UE and the transmitting base station is used to characterize the difference between the transmitting power of the transmitting base station and the receiving power of the kth UE. Thus, the server can determine the receiving power of the kth UE based on the transmitting power of the transmitting base station and the transmission loss, and further determine the SINR of the kth UE.
In the embodiment of the present invention, the interference power corresponding to the kth UE represents the power generated by the kth UE by the interfering base station corresponding to the kth UE. It should be understood that, when the transmitting base station corresponding to the kth UE is the ground IMT base station, the interfering base station corresponding to the kth UE is an HIBS base station, the HIBS base station may send an interfering signal to the kth UE, where the interfering signal received by the kth UE from the interfering base station is a useful signal received by the jammer from the transmitting base station. Similarly, when the transmitting base station corresponding to the kth UE is an HIBS base station, the interfering base station corresponding to the kth UE may be a ground IMT base station.
In an alternative implementation manner, the above-mentioned transmission power configuration method may further include step B.
And B, the server determines that the SINR of the kth UE in the plurality of UEs included in the target area meets the following formula:
wherein SINR k Representing SINR of the kth UE, P representing transmission power of the transmitting base station corresponding to the kth UE, G representing sum of all directional antenna gains of the transmitting base station, PL k Indicating transmission loss, UG, between the kth UE and the transmitting base station k Representing the antenna gain of the kth UE, I k The interference power corresponding to the kth UE is represented, the noise power of the kth UE is represented, and k is more than or equal to 1.
It can be understood that the sum of all the antenna gains of a transmitting base station can be understood as the newly added transmitting power of the transmitting base station, the antenna gain of a UE is the newly added receiving power of the UE, and the noise power of a UE can be understood as the interference power of the surrounding noise of the UE on the UE.
In the embodiment of the present invention, since the noise power of the UE is far smaller than the interference power corresponding to the UE, and the sum of all the antenna gains in all the directions of the transmitting base station corresponding to the UE and the antenna gain of the UE are unchanged within a certain period of time, the formula for determining the SINR of the kth UE in the above step a can be obtained without temporarily considering the sum of all the antenna gains in all the directions of the transmitting base station, the antenna gain of the UE and the noise power of the UE. The SINR of each UE of the plurality of UEs can be accurately and effectively determined, so as to determine which power configuration combinations of the plurality of power configuration combinations satisfy a preset condition (specifically, a first preset condition).
In one implementation manner, the method for configuring the transmitting power in the embodiment of the present invention further includes step C to step D.
Step C, the server determines that interference power corresponding to a kth UE in a plurality of UEs included in a target area satisfies the following formula:
wherein I is k Representing the interference power, P ', corresponding to the kth UE' m Representing the transmission power, P' L, of the mth interfering base station corresponding to the kth UE m,k Representing the transmission loss between the mth interference base station and the kth UE, wherein k is more than or equal to 1, and m is more than or equal to 1.
In connection with the above description of the embodiments, it should be understood that an interfering base station corresponding to one UE is a base station of the opposite type to the transmitting base station corresponding to the UE. Namely, when the type of the transmitting base station corresponding to the UE is a ground IMT base station, the type of the interference base station corresponding to the UE is an HIBS base station; when the type of the transmitting base station corresponding to the UE is an HIBS base station, the type of the interfering base station corresponding to the UE is a ground IMT base station.
Optionally, when the transmitting base station corresponding to a certain UE is a terrestrial IMT base station, the server may determine an HIBS base station with a communication distance between the server and the UE smaller than a distance threshold as an interfering base station corresponding to the UE.
It may be understood that the number of interfering base stations corresponding to the kth UE may be 1 or multiple. When the number of the interference base stations is 1, the interference power corresponding to the kth UE is the interference power of the interference base station, specifically, the difference value between the transmission power of the interference base station and the transmission loss between the interference base station and the kth UE. When the number of the interference base stations is multiple, the interference power corresponding to the kth UE is the sum of the interference powers of the multiple interference base stations.
And D, the server determines the average value of the interference power corresponding to each of the plurality of UE as the average interference power corresponding to the plurality of UE.
It should be understood that, based on the formula in the above step C, the server may determine the interference power corresponding to each of the plurality of UEs, that is, determine a plurality of interference powers; and further determining the average value of the plurality of interference powers as the average interference power corresponding to the plurality of UEs.
In the embodiment of the present invention, the above method for configuring transmission power may further include step E.
Step E, the server determines that interference power corresponding to a kth UE in a plurality of UEs included in a target area satisfies the following formula:
wherein I is k Representing the interference power, P ', corresponding to the kth UE' m Representing the transmission power of the mth interference base station corresponding to the kth UE, representing all-directional antenna gains of the mth interference base stationSum of P' L m,k Representing the transmission loss between the mth interference base station and the kth UE, representing the antenna gain of the kth UE, wherein k is more than or equal to 1, and m is more than or equal to 1.
In the embodiment of the invention, the sum of the antenna gains of all directions of the interference base station corresponding to a certain UE and the antenna gain of the UE are unchanged within a certain time period. Therefore, when determining the interference power corresponding to a certain UE, the antenna gain of the UE may be temporarily not considered in the sum of the antenna gains in all directions of the interfering base station, and the equation for determining the interference power corresponding to the kth UE in the above step C may be obtained. The method and the device can conveniently and rapidly determine the interference power corresponding to each UE in the plurality of UEs, and determine the average interference power corresponding to the plurality of UEs, thereby determining which power configuration combinations in the plurality of power configuration combinations meet the preset condition (specifically, the second preset condition).
Optionally, the interference power threshold included in the second preset condition may include a first interference power threshold and a second interference power threshold, where the first interference power threshold is smaller than the second interference power threshold. In the embodiment of the present invention, when the server determines, based on the formula in the step C, the interference power corresponding to each UE in the plurality of UEs, and further determines whether the average interference power corresponding to the plurality of UEs meets the second preset condition, the interference power threshold is the first interference power threshold; and E, when the server determines the interference power corresponding to each UE based on the formula in the step, and further determines whether the average interference power corresponding to the plurality of UEs meets the second preset condition, the interference power threshold is the second interference power threshold.
The method for configuring the transmitting power provided by the embodiment of the invention can further comprise a step F.
Step F, the server determines that the energy utilization rate of the HIBS base station corresponding to the target area meets the following formula:
wherein E represents the targetHIBS base station energy utilization rate corresponding to region, N A Indicating the number of at least one HIBS base station, which is one of the above-mentioned all HIBS base stations having communication connection with the plurality of UEs, N B Represents the number of all HIBS base stations, D x Representing the transmission power, F, of the x-th HIBS base station of the at least one HIBS base station x Represents the sum of all directional antenna gains of the x-th HIBS base station, D y Representing the transmission power of the y-th HIBS base station in all HIBS base stations, F y Representing the sum of all directional antenna gains of the y-th HIBS base station, N A ≥1，N B ≥1，x≥1，y≥1。
It should be appreciated that, for a plurality of UEs included in the target area, some of the plurality of UEs may have a communication connection with the HIBS base station (i.e., the type of transmitting base station to which the some UEs correspond is a HIBS base station), and the remaining UEs of the plurality of UEs may have a communication connection with the terrestrial IMT base station.
It is to be understood that, the at least one HIBS base station is used by the UE to the base station in the target area, and a signal sent by the at least one HIBS base station to the UE is a useful signal. Alternatively, in the above formula
It can be understood that the useful energy corresponding to all HIBS base stations is +.>
It is understood that the total energy corresponding to all HIBS base stations.
In the embodiment of the invention, a server determines at least one HIBS base station which is in communication connection with a plurality of UE from all HIBS base stations, determines useful energy (namely energy generated by useful signals) corresponding to all HIBS base stations based on the transmitting power and antenna gain of each HIBS base station in the at least one HIBS base station, and determines total energy corresponding to the plurality of HIBS base stations based on the transmitting power and antenna gain of each HIBS base station in all HIBS base stations, thereby determining the energy utilization rate of the HIBS base station corresponding to the target area. The energy utilization rate of the HIBS corresponding to the target area in each power configuration combination can be reasonably and completely determined, namely, which power configuration combinations are determined to meet the preset condition (specifically, the third preset condition) from the power configuration combinations can be determined, and the determination efficiency of the at least one power configuration combination can be improved.
In one implementation manner of the embodiment of the present invention, the server determines the total network power consumption corresponding to each of the at least one power configuration combination includes step G.
Step G, the server determines that the total network power consumption corresponding to each power configuration combination satisfies the following formula:
wherein Q represents the total power consumption of the network corresponding to each power configuration combination, N B Indicating the number of all HIBS base stations, N C Representing the number of all above-mentioned ground IMT base stations, D z Indicating the transmitting power value of the z-th HIBS base station in each power configuration combination in all the HIBS base stations, F z Represents the sum of all directional antenna gains, W, of the z-th HIBS base station j Representing the transmitting power value of the jth ground IMT base station in each power configuration combination in all the ground IMT base stations, V j Representing the sum of all directional antenna gains of the jth ground IMT base station, N B ≥1，N C ≥1，z≥1，j≥1。
It may be understood that the total network power consumption corresponding to each of the at least one power configuration combination is the sum of the transmit power values of all the HIBS base stations, the sum of all the directional antenna gains of all the HIBS base stations, the transmit power values of all the terrestrial IMT base stations, and the sum of all the directional antenna gains of all the terrestrial IMT base stations included in each of the at least one power configuration combination.
In connection with the description of the above embodiment, it should be understood that the server determines the total network power consumption corresponding to each power configuration combination, and determines the power configuration combination with the smallest total network power consumption in the at least one power configuration combination as the target power configuration combination, so that the target power configuration combination can be accurately determined, the power cost can be reduced, and the effect of further optimizing the cooperative networking is achieved. Furthermore, the transmit power can be configured for all the ground IMT base stations and all the HIBS base stations based on each transmit power value included in the target power configuration combination, so that the transmit power configuration efficiency of each base station in the target area can be improved.
The embodiment of the invention can divide the functional modules of the server and the like according to the method example, for example, each functional module can be divided corresponding to each function, and two or more functions can be integrated in one processing module. The integrated modules may be implemented in hardware or in software functional modules. It should be noted that, in the embodiment of the present invention, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation.
In the case of dividing the respective functional modules with the respective functions, fig. 4 shows a schematic diagram of one possible configuration of the transmission power configuration apparatus involved in the above-described embodiment, and as shown in fig. 4, the transmission power configuration apparatus 30 may include: an acquisition module 301, a determination module 302 and a processing module 303.
The acquiring module 301 is configured to acquire a ground IMT base station power value set and an HIBS base station power value set, where the ground IMT base station power value set is used for representing a value range of a transmit power of the ground IMT base station, and the HIBS base station power value set is used for representing a value range of a transmit power of the HIBS base station.
A determining module 302, configured to determine at least one power configuration combination that meets a preset condition based on the ground IMT base station power value set and the HIBS base station power value set, where one power configuration combination includes: and the transmitting power of all the ground IMT base stations and all the HIBS base stations in the target area is valued.
The determining module 302 is further configured to determine a target power configuration combination, where the target power configuration combination is a power configuration combination with the minimum total power consumption of the corresponding network among the at least one power configuration combination.
A processing module 303, configured to configure the transmit power for the all terrestrial IMT base stations and the all HIBS base stations based on the target power configuration combination.
Optionally, the preset conditions include a first preset condition, a second preset condition and a third preset condition, where the first preset condition is that SINR of each UE in the target area includes multiple UEs is greater than or equal to an SINR threshold, the second preset condition is that average interference power corresponding to the multiple UEs is less than or equal to an interference power threshold, and the third preset condition is that energy utilization rate of the HIBS base station corresponding to the target area is greater than or equal to an energy utilization rate threshold.
Optionally, the determining module 302 is further configured to determine that SINR of a kth UE among the multiple UEs included in the target area satisfies the following formula:
wherein SINR k Representing SINR of the kth UE, P representing transmission power of a transmission base station corresponding to the kth UE, the transmission base station being a base station having communication connection with the kth UE, the transmission base station being of a type of a ground IMT base station or HIBS base station, PL k Representing transmission loss between the kth UE and the transmitting base station, I k And the interference power corresponding to the kth UE is represented, and k is more than or equal to 1.
Optionally, the determining module 302 is further configured to determine that the interference power corresponding to a kth UE in the plurality of UEs included in the target area satisfies the following formula:
Wherein I is k Representing the interference power, P ', corresponding to the kth UE' m Representation ofThe transmission power, P' L, of the mth interfering base station corresponding to the kth UE m,k Representing the transmission loss between the mth interference base station and the kth UE, wherein k is more than or equal to 1, and m is more than or equal to 1.
The determining module 302 is further configured to determine an average value of the interference powers corresponding to the plurality of UEs as an average interference power corresponding to the plurality of UEs.
Optionally, the determining module 302 is further configured to determine that the energy utilization rate of the HIBS base station corresponding to the target area satisfies the following formula:
wherein E represents the energy utilization rate of the HIBS base station corresponding to the target area, N A Indicating the number of at least one HIBS base station, which is the HIBS base station having communication connection with the plurality of UEs among the all HIBS base stations, N B Represents the number of all HIBS base stations, D x Representing the transmission power, F, of the x-th HIBS base station of the at least one HIBS base station x Represents the sum of all directional antenna gains of the x-th HIBS base station, D y Representing the transmission power of the y-th HIBS base station in all HIBS base stations, F y Representing the sum of all directional antenna gains of the y-th HIBS base station, N A ≥1，N B ≥1，x≥1，y≥1。
Optionally, the determining module 302 is specifically configured to determine that the total network power consumption corresponding to each of the at least one power configuration combination satisfies the following formula:
Wherein Q represents the total power consumption of the network corresponding to each power configuration combination, N B Indicating the number of the plurality of HIBS base stations, N C Representing the number of all ground IMT base stations, D z Representing the transmit power of the z-th HIBS base station in each power configuration combination in all the HIBS base stationsTake the value of F z Represents the sum of all directional antenna gains, W, of the z-th HIBS base station j Representing the transmitting power value of the jth ground IMT base station in each power configuration combination in all the ground IMT base stations, V j Representing the sum of all directional antenna gains of the jth ground IMT base station, N B ≥1，N C ≥1，z≥1，j≥1。
In case of an integrated unit, fig. 5 shows a schematic diagram of one possible configuration of the transmit power configuration device involved in the above embodiment. As shown in fig. 5, the transmission power configuration apparatus 40 may include: a processing module 401 and a communication module 402. The processing module 401 may be used to control and manage the actions of the transmit power configuration device 40. The communication module 402 may be used to support communication of the transmit power configuration device 40 with other entities. Optionally, as shown in fig. 5, the transmit power configuration device 40 may further include a storage module 403 for storing program codes and data of the transmit power configuration device 40.
The processing module 401 may be a processor or a controller (e.g., may be the processor 201 shown in fig. 2 and described above). The communication module 402 may be a transceiver, a transceiver circuit, a communication interface, or the like (e.g., may be the network interface 203 described above and shown in fig. 2). The memory module 403 may be a memory (e.g., may be the memory 202 described above and shown in fig. 2).
When the processing module 401 is a processor, the communication module 402 is a transceiver, and the storage module 403 is a memory, the processor, the transceiver, and the memory may be connected through a bus. The bus may be a peripheral component interconnect standard (peripheral component interconnect, PCI) bus or an extended industry standard architecture (extended industry standard architecture, EISA) bus, or the like. The buses may be divided into address buses, data buses, control buses, etc.
It should be understood that, in various embodiments of the present invention, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using a software program, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present invention are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber terminal line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device including one or more servers, data centers, etc. that can be integrated with the medium. The usable medium may be a magnetic medium (e.g., a floppy Disk, a hard Disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (12)
1. A method for configuring transmit power, comprising:
acquiring a ground international mobile communication IMT base station power value set and an overhead platform HIBS base station power value set, wherein the ground IMT base station power value set is used for representing the value range of the transmitting power of a ground IMT base station, and the HIBS base station power value set is used for representing the value range of the transmitting power of the HIBS base station;
determining at least one power configuration combination meeting preset conditions based on the ground IMT base station power value set and the HIBS base station power value set, wherein the one power configuration combination comprises: the method comprises the steps that the transmitting power of all the ground IMT base stations and all the HIBS base stations in a target area is valued, the target area is an area with the same coverage area of all the ground IMT base stations and all the HIBS base stations, all the ground IMT base stations and all the HIBS base stations in the target area adopt the same frequency band, the preset conditions comprise a first preset condition, a second preset condition and a third preset condition, the first preset condition is that the signal-to-interference-plus-noise ratio SINR of each UE in a plurality of user equipment UE included in the target area is larger than or equal to an SINR threshold, the second preset condition is that the average interference power corresponding to the plurality of UE is smaller than or equal to an interference power threshold, and the third preset condition is that the energy utilization rate of the HIBS base stations corresponding to the target area is larger than or equal to an energy utilization rate threshold;
Determining a target power configuration combination, wherein the target power configuration combination is the power configuration combination with the minimum total power consumption of the corresponding network in the at least one power configuration combination;
and configuring transmitting power for all the ground IMT base stations and all the HIBS base stations in the target area based on the target power configuration combination.
2. The transmit power configuration method of claim 1, wherein the method further comprises:
determining that the SINR of a kth UE in a plurality of UEs included in the target area satisfies the following formula:
wherein SINR k Representing SINR of the kth UE, wherein P represents transmission power of a transmitting base station corresponding to the kth UE, the transmitting base station is a base station in communication connection with the kth UE, and the transmitting base station is a ground IMT base station or HIBS base station, and PL k Representing transmission loss between the kth UE and the transmitting base station, I k And the interference power corresponding to the kth UE is represented, and k is more than or equal to 1.
3. The transmit power configuration method of claim 1, wherein the method further comprises:
and determining that interference power corresponding to a kth UE in a plurality of UEs included in the target area meets the following formula:
Wherein I is k Representing the interference power, P, corresponding to the kth UE m 'represents the transmitting power, P' L, of the mth interfering base station corresponding to the kth UE m,k Representing transmission loss between the mth interference base station and the kth UE, wherein k is more than or equal to 1, and m is more than or equal to 1;
and determining the average value of the interference power corresponding to each of the plurality of UEs as the average interference power corresponding to the plurality of UEs.
4. The transmit power configuration method of claim 1, wherein the method further comprises:
determining that the energy utilization rate of the HIBS base station corresponding to the target area meets the following formula:
wherein E represents the energy utilization rate of the HIBS base station corresponding to the target area, N A Representing the number of at least one HIBS base station, which is one of the HIBS base stations having communication connection with the plurality of UEs, N B Representing the number of all HIBS base stations, D x Representing the transmission power of the x-th HIBS base station in the at least one HIBS base station, F x Represents the sum of all directional antenna gains of the x-th HIBS base station, D y Representing the transmission power of the y-th HIBS base station in all the HIBS base stations, F y Representing the sum of all directional antenna gains of the y-th HIBS base station, N A ≥1，N B ≥1，x≥1，y≥1。
5. The method of any of claims 1-4, wherein determining a total network power consumption for each of the at least one power configuration combination comprises:
and determining that the total network power consumption corresponding to each power configuration combination satisfies the following formula:
wherein Q represents the total network power consumption corresponding to each power configuration combination, N B Indicating the number of all HIBS base stations, N C Representing the number of all the ground IMT base stations, D z Representing the transmission power value of the z-th HIBS base station in each power configuration combination in all the HIBS base stations, F z Representing the sum of all directional antenna gains, W, of the z-th HIBS base station j Representing the transmitting power value of the jth ground IMT base station in each power configuration combination in all the ground IMT base stations, V j Representing the sum of all directional antenna gains of the jth ground IMT base station, N B ≥1，N C ≥1，z≥1，j≥1。
6. A transmit power configuration apparatus, comprising: the device comprises an acquisition module, a determination module and a processing module;
the acquisition module is used for acquiring a ground international mobile communication IMT base station power value set and an overhead platform HIBS base station power value set, wherein the ground IMT base station power value set is used for representing the value range of the transmitting power of the ground IMT base station, and the HIBS base station power value set is used for representing the value range of the transmitting power of the HIBS base station;
The determining module is configured to determine at least one power configuration combination that meets a preset condition based on the ground IMT base station power value set and the HIBS base station power value set, where the one power configuration combination includes: the method comprises the steps that the transmitting power of all ground IMTs and all HIBS base stations in a target area is valued, the target area is an area with the same coverage area of all the ground IMT base stations and all the HIBS base stations, all the ground IMT base stations and all the HIBS base stations in the target area adopt the same frequency band, the preset conditions comprise a first preset condition, a second preset condition and a third preset condition, the first preset condition is that the signal-to-interference-plus-noise ratio SINR of each UE in a plurality of user equipment UE included in the target area is larger than or equal to an SINR threshold, the second preset condition is that the average interference power corresponding to the plurality of UEs is smaller than or equal to an interference power threshold, and the third preset condition is that the energy utilization rate of the HIBS base stations corresponding to the target area is larger than or equal to an energy utilization rate threshold;
the determining module is further configured to determine a target power configuration combination, where the target power configuration combination is a power configuration combination with the minimum total network power consumption among the at least one power configuration combination;
The processing module is configured to configure transmit power for all the ground IMT base stations and all the HIBS base stations in the target area based on the target power configuration combination.
7. The apparatus for configuring transmission power according to claim 6, wherein,
the determining module is further configured to determine that SINR of a kth UE of the plurality of UEs included in the target area satisfies the following formula:
wherein SINR k Representing SINR of the kth UE, wherein P represents transmission power of a transmitting base station corresponding to the kth UE, the transmitting base station is a base station in communication connection with the kth UE, and the transmitting base station is a ground IMT base station or HIBS base station, and PL k Representing transmission loss between the kth UE and the transmitting base station, I k And the interference power corresponding to the kth UE is represented, and k is more than or equal to 1.
8. The apparatus for configuring transmission power according to claim 6, wherein,
the determining module is further configured to determine that interference power corresponding to a kth UE in the multiple UEs included in the target area satisfies the following formula:
wherein I is k Representing the interference power, P, corresponding to the kth UE m 'represents the transmitting power, P' L, of the mth interfering base station corresponding to the kth UE m,k Representing transmission loss between the mth interference base station and the kth UE, wherein k is more than or equal to 1, and m is more than or equal to 1;
the determining module is further configured to determine an average value of the interference powers corresponding to the plurality of UEs as an average interference power corresponding to the plurality of UEs.
9. The apparatus for configuring transmission power according to claim 6, wherein,
the determining module is further configured to determine that an energy utilization rate of the HIBS base station corresponding to the target area satisfies the following formula:
wherein E represents the energy utilization rate of the HIBS base station corresponding to the target area, N A Representing the number of at least one HIBS base station, which is one of the HIBS base stations having communication connection with the plurality of UEs, N B Representing the number of all HIBS base stations, D x Representing the transmission power of the x-th HIBS base station in the at least one HIBS base station, F x Represents the sum of all directional antenna gains of the x-th HIBS base station, D y Representing the transmission power of the y-th HIBS base station in all the HIBS base stations, F y Representing the sum of all directional antenna gains of the y-th HIBS base station, N A ≥1，N B ≥1，x≥1，y≥1。
10. The transmission power configuration apparatus according to any one of claims 6 to 9, characterized in that,
The determining module is specifically configured to determine that the total network power consumption corresponding to each power configuration combination in the at least one power configuration combination satisfies the following formula:
wherein Q represents the total network power consumption corresponding to each power configuration combination, N B Indicating the number of all HIBS base stations, N C Representing the number of all the ground IMT base stations, D z Representing the transmission power value of the z-th HIBS base station in each power configuration combination in all the HIBS base stations, F z Representing the sum of all directional antenna gains, W, of the z-th HIBS base station j Representing the transmitting power value of the jth ground IMT base station in each power configuration combination in all the ground IMT base stations, V j Representing the sum of all directional antenna gains of the jth ground IMT base station, N B ≥1，N C ≥1，z≥1，j≥1。
11. A server, the server comprising:
a processor;
a memory configured to store the processor-executable instructions;
wherein the processor is configured to execute the instructions to implement the transmit power configuration method of any of claims 1-5.
12. A computer readable storage medium having instructions stored thereon, which when executed by a server, cause the server to perform the transmit power configuration method of any of claims 1-5.
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| CN112788723A (en) * | 2019-11-08 | 2021-05-11 | 华为技术有限公司 | Method and apparatus for power control |
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| CN110519695A (en) * | 2019-05-31 | 2019-11-29 | 中国人民解放军国防科技大学 | Database-assisted satellite system and ground cellular network spectrum sharing method |
| CN112788723A (en) * | 2019-11-08 | 2021-05-11 | 华为技术有限公司 | Method and apparatus for power control |
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