CN116074865A

CN116074865A - Transmission configuration method, device and storage medium of air-ground integrated network

Info

Publication number: CN116074865A
Application number: CN202211730906.XA
Authority: CN
Inventors: 周瑶; 刘吉凤; 王婷婷; 牛憶莹; 李福昌
Original assignee: China United Network Communications Group Co Ltd
Current assignee: China United Network Communications Group Co Ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-05

Abstract

The application provides a transmission configuration method, a transmission configuration device and a storage medium of an air-ground integrated network, which relate to the technical field of communication and are used for relieving cross-link interference of air-ground integration and improving the frequency spectrum efficiency of a system, wherein the method comprises the following steps: constructing a first functional relation between throughput and transmission configuration parameter combination of the air-ground integrated network; wherein the transmission configuration parameter combination includes the following parameters: the downlink transmitting power of the high-altitude base station on the almost blank subframe, the proportion of the almost blank subframe in the scheduling period, the proportion of the first normal subframe in the scheduling period and the proportion of the second normal subframe in the scheduling period; and solving the first functional relation with the aim of maximizing the frequency spectrum efficiency of the air-ground integrated network, and determining the optimal value of each parameter in the transmission configuration parameter combination.

Description

Transmission configuration method, device and storage medium of air-ground integrated network

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a transmission configuration method, an apparatus, and a storage medium for an air-ground integrated network.

Background

With the massive coverage of 5G, academia and industry have begun to explore the next generation mobile communication technology. Wide area coverage has received wide attention in recent years as an important potential application background and development direction of 5G, and wide area coverage is required to establish a seamless three-dimensional global coverage network. In this context, there are currently over 30 hundred million people worldwide without substantial internet access, most of which are distributed in rural and remote areas, and the high networking costs of terrestrial communication networks make telecommunication operators burdensome. Meanwhile, the communication requirements of unmanned areas and ocean-going sea areas, such as high-speed communication under the investigation of Antarctic science, broadband access of ocean-going cargo vessels and the like, cannot be met by deploying a ground network.

Aiming at the problems, the air-ground integrated network can break through the limitation of the ground surface as a novel network architecture, and realize wide area coverage, high-speed transmission and heterogeneous interconnection, so that wide area wireless coverage and large space-time scale rapid communication service are realized, and a solution idea can be provided for the wide area coverage requirement of 5G. The architecture of the air-ground integrated network mainly comprises two parts: (1) space-based network: mainly comprises high altitude platform base stations (High Altitude Platform Station, HAPS). (2) foundation network: the foundation network mainly comprises different types of ground communication base stations and communication equipment, intelligent terminals, sensors and the like, such as an Internet of things sensor, a mobile terminal and the like.

In the network architecture, when one of the HAPS and the ground communicates to perform uplink transmission, interference is caused to downlink reception of the other party, that is, cross-link interference is caused, so that the overall system spectrum efficiency is reduced, and how to alleviate the cross-link interference and realize the improvement of the system spectrum efficiency is a problem to be solved.

Disclosure of Invention

The embodiment of the application provides a transmission configuration method, a transmission configuration device and a storage medium of an air-ground integrated network, which are used for relieving cross-link interference of air-ground integration and improving the frequency spectrum efficiency of a system.

In a first aspect, a transmission configuration method of an air-ground integrated network is provided, where the air-ground integrated network includes at least one high-altitude base station and at least one ground base station, and the method includes: constructing a first functional relation between throughput and transmission configuration parameter combination of the air-ground integrated network; wherein the transmission configuration parameter combination includes the following parameters: the downlink transmitting power of the high-altitude base station on the almost blank subframe, the proportion of the almost blank subframe in the scheduling period, the proportion of the first normal subframe in the scheduling period and the proportion of the second normal subframe in the scheduling period; the sum of the proportion of almost blank subframes in the scheduling period, the proportion of the first normal subframes in the scheduling period and the proportion of the second normal subframes in the scheduling period is equal to 1; the first normal subframe is a normal subframe for uplink service, and the second normal subframe is a normal subframe for downlink service; and solving the first functional relation with the aim of maximizing the throughput of the air-ground integrated network, and determining the optimal value of each parameter in the transmission configuration parameter combination.

The technical scheme provided by the embodiment of the application at least brings the following beneficial effects: the method comprises the steps of solving a first function relation by constructing the first function relation of the combination of throughput and transmission configuration parameters of the air-ground integrated network and taking the maximized frequency efficiency as a target, so as to determine the optimal value of each parameter in the transmission configuration; therefore, the problem of spectrum efficiency reduction caused by cross-link interference in the air-ground integrated network is solved, and the working efficiency of the air-ground integrated network is improved.

As one possible implementation, the throughput of the air-ground integrated network is equal to the sum of the throughput of at least one high-altitude base station and the throughput of at least one ground base station in the air-ground integrated network.

As one possible implementation, the throughput of the high-altitude base station is determined according to the spectral efficiency of the first link of the high-altitude base station, the spectral efficiency of the second link of the high-altitude base station, the spectral efficiency of the third link of the high-altitude base station, the proportion of almost blank subframes in the scheduling period, the proportion of the first normal subframes in the scheduling period, and the proportion of the second normal subframes in the scheduling period; the first link is a link established by the terminal and the high-altitude base station for uplink service transmission on a first normal subframe, the second link is a link established by the terminal and the high-altitude base station for downlink service transmission on a second normal subframe, and the third link is a link established by the terminal and the high-altitude base station for downlink service transmission on an almost blank subframe; the spectral efficiency of the third link is determined from the downlink transmit power of the high altitude base station on the almost blank subframes.

As one possible implementation, the throughput of the ground base station is determined according to the spectral efficiency of the fourth link of the ground base station, the spectral efficiency of the fifth link of the ground base station, the spectral efficiency of the sixth link of the ground base station, the spectral efficiency of the seventh link of the ground base station, the proportion of almost blank subframes in the scheduling period, the proportion of the first normal subframes in the scheduling period, and the proportion of the second normal subframes in the scheduling period; the fourth link is a link established by the terminal and the ground base station for uplink service transmission on the first normal subframe, the fifth link is a link established by the terminal and the ground base station for downlink service transmission on the second normal subframe, the sixth link is a link established by the terminal and the ground base station for downlink service transmission on the almost blank subframe, and the seventh link is a link established by the terminal and the ground base station for uplink service transmission on the almost blank subframe; the spectral efficiency of the sixth link and the spectral efficiency of the seventh link are determined based on the downlink transmit power of the high altitude base station on the almost blank subframes.

As a possible implementation manner, the method further includes: constructing a utility function of a cell according to the transmission rate requirements of each uplink service and the transmission rate requirements of downlink services in the cell; based on constraint conditions of time slot configuration, the utility function of the cell is solved with the aim of maximizing the function value of the utility function of the cell, and the proportion of time slots in normal subframes occupied by each uplink service, the proportion of time slots in almost blank subframes occupied by each uplink service, the proportion of time slots in normal subframes occupied by each downlink service and the proportion of time slots in almost blank subframes occupied by each downlink service are obtained.

In a second aspect, a transmission configuration apparatus of an air-ground integrated network is provided, where the air-ground integrated network includes at least one high-altitude base station and at least one ground base station, and the apparatus includes: a first construction module, configured to construct a first functional relationship between throughput and transmission configuration parameter combinations of the air-ground integrated network; wherein the transmission configuration parameter combination includes the following parameters: the downlink transmitting power of the high-altitude base station on the almost blank subframe, the proportion of the almost blank subframe in the scheduling period, the proportion of the first normal subframe in the scheduling period and the proportion of the second normal subframe in the scheduling period; the sum of the proportion of almost blank subframes in the scheduling period, the proportion of the first normal subframes in the scheduling period and the proportion of the second normal subframes in the scheduling period is equal to 1; the first normal subframe is a normal subframe for uplink service, and the second normal subframe is a normal subframe for downlink service; and the determining module is used for solving the first functional relation with the aim of maximizing the throughput of the air-ground integrated network and determining the optimal value of each parameter in the transmission configuration parameter combination.

As a possible implementation manner, the apparatus further includes: the second construction module is used for constructing a utility function of the cell according to the transmission rate requirements of each uplink service and the transmission rate requirements of the downlink service in the cell; the solving module is used for solving the utility function of the cell based on the constraint condition of time slot configuration and taking the function value of the utility function of the maximized cell as a target to obtain the proportion of time slots in normal subframes occupied by each uplink service, the proportion of time slots in almost blank subframes occupied by each uplink service, the proportion of time slots in normal subframes occupied by each downlink service and the proportion of time slots in almost blank subframes occupied by each downlink service.

In a third aspect, a transmission configuration apparatus of an air-ground integrated network is provided, including a processor, where the processor implements the transmission configuration method of the air-ground integrated network according to the first aspect when executing a computer program.

In a fourth aspect, there is provided a computer-readable storage medium comprising: the computer-readable storage medium includes computer instructions; wherein when the computer instructions are executed, a transmission configuration method of the air-ground integrated network according to the first aspect is implemented.

The beneficial effects described in the second aspect to the fourth aspect of the present application may refer to the beneficial effect analysis of the first aspect or the second aspect, and are not described herein.

Drawings

The accompanying drawings are included to provide a further understanding of the technical aspects of the present application, and are incorporated in and constitute a part of this specification, illustrate the technical aspects of the present application and together with the examples of the present application, and not constitute a limitation of the technical aspects of the present application.

Fig. 1 is a network architecture diagram of air-ground integration provided in an embodiment of the present application;

fig. 2 is a flow chart of a transmission configuration method of an air-ground integrated network according to an embodiment of the present application;

fig. 3 is a flow chart of another transmission configuration method of an air-ground integrated network according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a transmission configuration device of an air-ground integrated network according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a transmission configuration device of another air-ground integrated network according to an embodiment of the present application.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments in the present application are all within the scope of protection of the present application.

In the description of the present application, "/" means "or" unless otherwise indicated, for example, a/B may mean a or B. "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. Furthermore, "at least one" means one or more, and "a plurality" means two or more. The terms "first," "second," and the like do not limit the number and order of execution, and the terms "first," "second," and the like do not necessarily differ. In this application, the terms "exemplary" or "such as" are used to mean serving as an example, instance, or illustration.

Any embodiment or design described herein as "exemplary" or "for example" should not be construed 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. In embodiments of the present application, "indication" may include both direct indication and indirect indication. For example, taking the first control information hereinafter as an example, the first control information may directly carry the information a itself or an index thereof, so as to achieve the purpose of directly indicating the information a. Alternatively, the first control information may also carry information B having an association relationship with information a, so as to achieve the purpose of indirectly indicating information a while indicating information B.

Exemplary, as shown in fig. 1, an embodiment of the present application provides a network architecture with air-ground integration. The architecture comprises an air-based network and a foundation network. The air-based network comprises a plurality of high-altitude platform base stations (such as high altitude 1, high altitude 2, high altitude 3 and high altitude 4 in fig. 1), and the ground-based network comprises a plurality of ground communication base stations (such as ground 1, ground 2, ground 3 and ground 4 in fig. 1). The high-altitude platform base stations are connected by adopting a wireless Mesh network Mesh, the ground communication base stations are connected by adopting optical fibers, and the high-altitude platform base stations and the ground communication base stations are connected by adopting point-to-point PMP.

The air-based network can provide broadband wireless communication, and is used as a carrier for information acquisition, forwarding transmission and processing, so that the communication pressure of the ground-based network is relieved. In order to avoid the influence of extreme weather conditions such as rain, snow, lightning and the like and prevent interference of civil aircraft, stratospheric aircrafts such as stratosphere balloons are adopted to become the main stream direction of air-based network construction, and the stratosphere balloons utilize the high wind speed of stratosphere to carry out position adjustment and use solar energy to supply power. The unmanned aerial vehicle can stay in the air for a long time, and the problem of energy shortage of the traditional unmanned aerial vehicle is avoided to a great extent.

The ground network mainly consists of different ground communication base stations.

It should be noted that fig. 1 is only an exemplary architecture diagram, the number of structures included in fig. 1 is not limited, and names of the respective structures are not limited, and the network architecture may further include other structures besides the structures shown in fig. 1, such as a ground-based network may further include communication devices, intelligent terminals, sensors, and the like.

The application scenario of the embodiment of the present application is not limited. The network architecture and the service scenario described in the embodiments of the present application are for more clearly describing the technical solution of the embodiments of the present application, and do not constitute a limitation on the technical solution provided in the embodiments of the present application, and those skilled in the art can know that, with the evolution of the network architecture and the appearance of the new service scenario, the technical solution provided in the embodiments of the present application is also applicable to similar technical problems.

As described in the background, in the air-ground integrated network, spectrum efficiency is reduced due to cross-link interference. In the related art, cross-link interference is mitigated by introducing a scheme of almost empty subframes. Almost empty subframe ABS technology is mainly used for solving the interference of control channels when being proposed, if the physical downlink control channel PDCCH of an interference source cell is sent in each subframe, the PDCCH of the interference source cell can seriously interfere the PDCCH of the terminal of the interfered cell, so that the terminal of the interfered cell drops. By configuring the ABS subframes, the interference source cell reduces power transmission or does not transmit on some physical channels of the almost empty subframes, so that interference to PDCCH channels of the interfered cell terminals and PDSCH channels of the physical downlink shared channel can be avoided. The interfered cell terminal only decodes the PDCCH channel and performs data transmission on the almost empty subframe configured in the interference source cell, so that the interference can be effectively avoided.

If the scheme based on almost all empty subframes is introduced into the air-ground integrated network architecture, transmission resources of the high-altitude platform base station in the air-based network are sacrificed. How to effectively alleviate cross-link interference and improve the system spectrum efficiency is a problem to be solved.

Based on this, the embodiment of the application provides a transmission configuration method of an air-ground integrated network, which is characterized in that: and determining optimal values of various parameters in the transmission configuration related to the spectrum efficiency with the aim of maximizing the spectrum efficiency of the air-ground integration. The method solves the problem of reduced spectrum efficiency caused by cross-link interference in the air-ground integrated network.

As shown in fig. 2, an embodiment of the present application provides a transmission configuration method of an air-ground integrated network, including the following steps:

s201, constructing a first functional relation between throughput and transmission configuration parameter combination of the space-earth integrated network.

Wherein the transmission configuration parameter combination includes the following parameters: the downlink transmitting power of the high-altitude base station on the almost blank subframe, the proportion of the almost blank subframe in the scheduling period, the proportion of the first normal subframe in the scheduling period and the proportion of the second normal subframe in the scheduling period; the sum of the proportion of almost blank subframes in the scheduling period, the proportion of the first normal subframes in the scheduling period and the proportion of the second normal subframes in the scheduling period is equal to 1; the first normal subframe is a normal subframe for uplink traffic, and the second normal subframe is a normal subframe for downlink traffic.

In some embodiments, the scheduling period is preset by the system, and 10 subframes or more are used as one scheduling period. Wherein, the sum of the proportion of almost blank subframes in the scheduling period, the proportion of the first normal subframes in the scheduling period and the proportion of the second normal subframes in the scheduling period is equal to 1, namely the following formula is satisfied:

a ^n,d +a ^n,u +a ^l ＝1

wherein a is ^l A is the proportion of almost blank subframes in a scheduling period ^n,u A is the proportion of the first normal subframe in the scheduling period ^n,d And the proportion of the second normal subframe in the scheduling period is calculated.

For example, the scheduling period of a space-earth integrated network is 10 subframes, and in the scheduling period, almost blank subframes occupy 4 subframes in the scheduling period, and the proportion is 4/10; the first normal subframe occupies 3 subframes in the dispatching cycle, and the proportion is 3/10; the second normal subframe occupies 3 subframes in the scheduling period, and the proportion is 3/10. The ratio of almost blank subframes to 4/10+the ratio of the first normal subframes to 3/10+the ratio of the second normal subframes to 3/10 in the scheduling period is equal to 1.

In other embodiments, the scheduling period may be manually set; and can also be determined according to the historical working experience of the air-ground integrated network.

The throughput of the air-ground integrated network is equal to the sum of the throughput of at least one high-altitude base station and the throughput of at least one ground base station in the air-ground integrated network.

In an air-ground integrated network, the air-based network comprises 3 high-altitude base stations, namely high-altitude 1, high-altitude 2 and high-altitude 3; the ground network comprises 3 ground base stations, namely a ground 1, a ground 2 and a ground 3. At this time, the throughput of the air-ground integrated network is the sum of the throughput of six base stations in total, namely, the high altitude 1, the high altitude 2, the high altitude 3, the ground 1, the ground 2 and the ground 3.

The throughput of the high-altitude base station is determined according to the spectrum efficiency of a first link of the high-altitude base station, the spectrum efficiency of a second link of the high-altitude base station, the spectrum efficiency of a third link of the high-altitude base station, the proportion of almost blank subframes in a scheduling period, the proportion of a first normal subframe in the scheduling period and the proportion of a second normal subframe in the scheduling period; the first link is a link established by the terminal and the high-altitude base station for uplink service transmission on a first normal subframe, the second link is a link established by the terminal and the high-altitude base station for downlink service transmission on a second normal subframe, and the third link is a link established by the terminal and the high-altitude base station for downlink service transmission on an almost blank subframe.

The first functional relationship between the throughput of the high altitude base station and the transmission configuration parameter combination includes the following formula:

wherein C is ₀ For the throughput of the high-altitude base station,

spectral efficiency of the first link being a high-altitude base station,/->

Spectral efficiency of the second link being a high-altitude base station,/->

Spectral efficiency of the third link, which is a high-altitude base station,>

the number of terminals for downlink transmission for connecting to the high-altitude base station,/-for the high-altitude base station>

The number of terminals for uplink transmission for connecting with high-altitude base station, a ^l A is the proportion of almost blank subframes in a scheduling period ^n,u A is the proportion of the first normal subframe in the scheduling period ^n,d And the proportion of the second normal subframe in the scheduling period is calculated.

The spectrum efficiency of the first link of the Gao Kongji station, the signal-to-interference-and-noise ratio when the terminal and the high-altitude base station perform uplink service on the first normal subframe satisfy the following formula:

wherein, the liquid crystal display device comprises a liquid crystal display device,

spectral efficiency of the first link being a high-altitude base station,/->

And the signal to interference and noise ratio is the signal to interference and noise ratio when the terminal and the high-altitude base station perform uplink service on the first normal subframe.

Signal-to-interference-and-noise ratio when terminal and high-altitude base station carry out uplink service on first normal subframe

The following formula is satisfied:

for the transmitting power of the terminal and the high-altitude base station when the terminal and the high-altitude base station perform the uplink service on the first normal subframe,/for the transmitting power of the terminal and the high-altitude base station when the terminal and the high-altitude base station perform the uplink service on the first normal subframe >

For the path loss generated when the terminal and the high-altitude base station perform uplink service on the first normal subframe,/for the terminal and the high-altitude base station>

For the average uplink interference of neighbor cells when the terminal and the high-altitude base station perform uplink service on the first normal subframe, sigma ² And the noise generated when the terminal and the high-altitude base station perform uplink service on the first normal subframe is generated.

The terminal and the high-altitude base station perform uplink industry on the first normal subframeAverage uplink interference from neighbor cells during service

The following formula is satisfied:

for the terminal and the high-altitude base station to receive the average uplink interference of the neighbor cells when the uplink service is carried out on the first normal subframe, the uplink interference is +.>

For the transmitting power of the terminal and the high-altitude base station when the terminal and the high-altitude base station perform the uplink service on the first normal subframe,/for the transmitting power of the terminal and the high-altitude base station when the terminal and the high-altitude base station perform the uplink service on the first normal subframe>

For the path loss generated when the terminal and the high-altitude base station perform uplink service on the first normal subframe, M _k For the number of terminals accessing the high-altitude base station.

The spectrum efficiency of the second link of the Gao Kongji station, the signal-to-interference-and-noise ratio when the terminal and the high-altitude base station perform downlink service on the second normal subframe satisfy the following formula:

spectral efficiency of the second link being a high-altitude base station,/->

And the signal to interference and noise ratio is the signal to interference and noise ratio when the terminal and the high-altitude base station perform downlink service on the second normal subframe.

Terminal and highSignal-to-interference-and-noise ratio when the empty base station performs downlink service on the second normal subframe

The following formula is satisfied:

for the signal-to-interference-plus-noise ratio of the terminal and the high-altitude base station when carrying out the downlink service on the second normal subframe,/for the terminal and the high-altitude base station>

For the transmitting power of the terminal and the high-altitude base station when the terminal and the high-altitude base station perform the downlink service on the second normal subframe,/for the transmitting power of the terminal and the high-altitude base station when the terminal and the high-altitude base station perform the downlink service on the second normal subframe>

P is the path loss generated when the terminal and the high-altitude base station perform downlink service on the second normal subframe _k For the transmitting power, sigma, of the terminal and the downlink service performed on the second normal subframe except the high altitude base station ² And the noise generated when the terminal and the high-altitude base station perform downlink service on the second normal subframe is generated.

The spectrum efficiency of the third link is determined according to the downlink transmitting power of the high-altitude base station on the almost blank subframe, and the spectrum efficiency of the third link of the high-altitude base station, the signal-to-interference-and-noise ratio when the terminal and the high-altitude base station perform downlink service on the almost blank subframe satisfy the following formulas:

spectral efficiency of the third link, which is a high-altitude base station,>

and the signal to interference and noise ratio is the signal to interference and noise ratio when the terminal and the high-altitude base station perform downlink service on the almost blank subframe.

Signal-to-interference-and-noise ratio when terminal and high altitude base station carry out downlink service on almost blank subframe

The following formula is satisfied:

for the transmitting power of the terminal and the high-altitude base station when the terminal performs the downlink service on the almost blank subframe,

for the path loss generated when the terminal and the high-altitude base station perform the downlink service on the almost blank subframe,/for the terminal and the high-altitude base station>

Transmitting power h for terminal and base station except Gao Kongji station in almost blank subframe for downlink service _i,k For the path loss, sigma, generated when the terminal and the high altitude base station perform downlink service on almost blank subframes ² And the noise generated when the terminal and the high-altitude base station perform downlink service on the almost blank subframes is generated. />

The downlink transmitting power of the high-altitude base station on the almost blank subframe respectively meets the following formula:

/>

for the transmitting power of the terminal and the high altitude base station when the terminal and the high altitude base station perform the downlink service on the almost blank subframe,/for the terminal and the high altitude base station>

For the transmit power of the terminal and base station except Gao Kongji station when downlink traffic is performed on almost blank subframes, +.>

Transmit power for high altitude base station when downlink traffic is performed on almost blank subframes,/for high altitude base station>

And transmitting power for the ground base station when downlink service is carried out on the almost blank subframe.

The throughput of the ground base station is determined according to the spectral efficiency of the fourth link of the ground base station, the spectral efficiency of the fifth link of the ground base station, the spectral efficiency of the sixth link of the ground base station, the spectral efficiency of the seventh link of the ground base station, the proportion of almost blank subframes in the scheduling period, the proportion of the first normal subframes in the scheduling period, and the proportion of the second normal subframes in the scheduling period; the fourth link is a link established by the terminal and the ground base station for uplink transmission on the first normal subframe, the fifth link is a link established by the terminal and the ground base station for downlink transmission on the second normal subframe, the sixth link is a link established by the terminal and the ground base station for downlink transmission on the almost blank subframe, and the seventh link is a link established by the terminal and the ground base station for uplink transmission on the almost blank subframe.

The first functional relationship between the throughput of the ground base station and the transmission configuration parameter combination comprises the following formula:

wherein C is _j For the throughput of the ground base station,

spectral efficiency of the fourth link for the ground base station, < >>

Spectral efficiency of the fifth link for the ground base station, < >>

For the spectral efficiency of the sixth link, +.>

For the spectral efficiency of the seventh link,

the number of terminals for downlink transmission for connection to a ground base station, is +>

The number of terminals for uplink transmission for connection to a ground base station, a ^l A is the proportion of almost blank subframes in a scheduling period ^n,u A is the proportion of the first normal subframe in the scheduling period ^n,d And the proportion of the second normal subframe in the scheduling period is calculated.

The spectrum efficiency of the fourth link of the ground base station, and the signal-to-interference-and-noise ratio when the terminal and the ground base station perform uplink service on the first normal subframe satisfy the following formulas:

spectral efficiency of the fourth link, which is the high-altitude base station,>

and the signal to interference and noise ratio is the signal to interference and noise ratio when the terminal and the ground base station perform uplink service on the first normal subframe.

Signal-to-interference-and-noise ratio when terminal and ground base station carry out uplink service on first normal subframe

The following formula is satisfied:

for the transmitting power of the terminal and the ground base station when the terminal performs the uplink service on the first normal subframe,/for the uplink service >

For the path loss generated when the terminal and the ground base station perform uplink traffic on the first normal subframe,/>

For the average uplink interference of neighbor cells when the terminal and the ground base station perform uplink service on the first normal subframe, sigma ² And the noise generated when the terminal and the ground base station perform uplink service on the first normal subframe is generated.

The terminal and the ground base station are subject to average uplink interference of neighbor cells when uplink service is carried out on a first normal subframe

The following formula is satisfied:

for the terminal and the ground base station to receive the average uplink interference of the neighbor cell when the uplink service is carried out on the first normal subframe, the uplink interference is +.>

For the transmitting power of the terminal and the ground base station when the terminal performs the uplink service on the first normal subframe,/for the uplink service>

For the path loss generated when the terminal and the ground base station perform uplink service on the first normal subframe, M _k For the number of terminals accessing the ground base station.

The spectrum efficiency of the fifth link of the ground base station, and the signal-to-interference-and-noise ratio when the terminal and the ground base station perform downlink service on the second normal subframe satisfy the following formulas:

spectral efficiency of the second link for the ground base station, < >>

And the signal to interference and noise ratio is the signal to interference and noise ratio when the terminal and the ground base station perform downlink service on the second normal subframe.

Signal-to-interference-and-noise ratio when terminal and ground base station make downlink service on second normal subframe

The following formula is satisfied:

for the signal-to-interference-plus-noise ratio of the terminal and the ground base station when the downlink service is carried out on the second normal subframe,/>

For the transmitting power of the terminal and the ground base station when the downlink service is performed on the second normal subframe,/for the terminal and the ground base station>

P is the path loss generated when the terminal and the ground base station perform downlink service on the second normal subframe _k For the transmitting power, sigma, of the terminal and the downlink service performed on the second normal subframe except the ground base station ² And the noise generated when the terminal and the high-altitude base station perform downlink service on the second normal subframe is generated.

The spectrum efficiency of the sixth link is determined according to the downlink transmitting power of the high altitude base station on the almost blank subframe, and the spectrum efficiency of the sixth link of the ground base station, and the signal-to-interference-and-noise ratio when the terminal and the ground base station perform downlink service on the almost blank subframe satisfy the following formulas:

spectral efficiency of the sixth link for the ground base station, < >>

Terminal and groundSignal-to-interference-and-noise ratio of base station for downlink service on almost blank subframe

The following formula is satisfied: />

for the transmit power of the terminal and the ground base station when performing downlink traffic on almost blank subframes,

for the path loss generated when the terminal and the ground base station perform downlink service on almost blank subframes,/>

Transmitting power h for the terminal and the base station except the ground base station to perform downlink service on almost blank subframes _i,k For the path loss, sigma, generated when the terminal and the ground-except base station perform downlink service on almost blank subframes ² And the noise generated when the terminal and the ground base station perform downlink service on the almost blank subframes is generated. />

for the transmitting power of the terminal and the ground base station when the downlink service is performed on almost blank subframes,/for the terminal and the ground base station>

For transmitting power of terminal and base station except ground base station when making downlink service on almost blank subframe,/for transmitting power of terminal and base station except ground base station when making downlink service on almost blank subframe>

The spectrum efficiency of the seventh link is determined according to the downlink transmitting power of the high altitude base station on the almost blank subframe, and the spectrum efficiency of the seventh link of the ground base station, and the signal-to-interference-and-noise ratio when the terminal and the ground base station perform uplink service on the almost blank subframe satisfy the following formulas:

for the transmitting power of the terminal and the ground base station when the uplink service is carried out on almost blank sub-frames,/for the terminal and the ground base station>

For the path loss generated when the terminal and the ground base station perform uplink traffic on almost blank subframes,/>

For the path loss generated when the terminal and the ground-except base station perform uplink traffic on almost blank subframes,/>

Transmitting power sigma for terminal and base station except ground base station in almost blank subframe for uplink service ² Noise generated when the terminal and the ground base station perform uplink service on almost blank subframes. />

The downlink transmitting power of the high-altitude base station on the almost blank subframe meets the following formula:

/>

S202, solving a first functional relation with the aim of maximizing the frequency spectrum efficiency of the air-ground integrated network, and determining the optimal value of each parameter in the transmission configuration parameter combination.

Wherein, the ratio of throughput to almost blank subframe in the scheduling period and the downlink transmitting power of the high-altitude base station on the almost blank subframe satisfy the following formulas:

In the above formula, a ^l For the proportion of almost blank subframes in the scheduling period,

c is the downlink transmitting power of the high-altitude base station on the almost blank subframe _i Throughput for an air-ground integrated network.

In some embodiments, the downlink transmit power of the high altitude base station on almost blank subframes is within a scientifically allowed interval

Ratio a to almost blank subframe in scheduling period ^l Assigning a value by traversing the two parameters +.>

And a ^l Value in scientific interval, and determining throughput C of local and air integrated network _i Maximum +.>

And a ^l Is a value of (a).

Exemplary, in a space-to-ground integrated network, the downlink transmit power of a high altitude base station on almost blank subframes

Traversable value interval is { P } ₁ ，P ₂ ，P ₃ ，P ₄ ，P ₅ Ratio a of almost blank subframes in scheduling period ^l Traversable value interval is { a } ₁ ，a ₂ ，a ₃ ，a ₄ ，a ₅ }. Will->

And a ^l The values in the interval are traversed to the formula one by one, and the downlink transmitting power of the high altitude base station on the almost blank subframe is obtained through calculation>

Is P ₃ Proportion a of almost blank subframes in the scheduling period ^l Is a as ₃ Throughput C of space-time integrated network _i Is the maximum value.

From the above, throughput C of the air-ground integrated network _i At maximum, the proportion a of almost blank subframes in the scheduling period ^l Is a as ₃ . Wherein the proportion a of almost blank subframes in the scheduling period ^l The proportion a of the first normal subframe in the scheduling period ^n,u And a proportion a of the second normal subframe in the scheduling period ^n,d The following formula is satisfied:

wherein a is ^l A is the proportion of almost blank subframes in a scheduling period ^n,u A is the proportion of the first normal subframe in the scheduling period ^n,d For the proportion of the second normal subframe in the scheduling period,

for accessing the terminal number of the air-ground integrated network, < >>

Spectral efficiency when uplink service is carried out on first normal subframe for air-ground integrated network, </u >>

Spectral efficiency when the air-ground integrated network performs downlink service in the second normal subframe, < >>

Spectral efficiency when downlink traffic is transmitted on almost blank subframes for an air-to-ground integrated network.

It will be appreciated that the above formula is sorted as follows:

obtaining the proportion a of the first normal subframe in the scheduling period ^n,u Proportion a of the second normal subframe in the scheduling period ^n,d Respectively using the proportion a of almost blank subframes in the scheduling period ^l The function represented is as follows:

continuing with the above embodiment, throughput C of air-ground integrated network will be _i The proportion a of almost blank subframes in the scheduling period when the maximum value is reached ^l Respectively substituting the ratio a of the first normal subframe in the scheduling period ^n,u Using the proportion a of almost blank subframes in the scheduling period ^l The function represented and the proportion a of the second normal subframe in the scheduling period ^n,d Using the proportion a of almost blank subframes in the scheduling period ^l The throughput C of the air-ground integrated network can be obtained by the expressed function _i At maximum value, a ^n,u And a ^n,d Is a value of (a). The optimal values of the parameters in the transmission configuration parameter combination are determined, namely the downlink transmitting power of the high-altitude base station on the almost blank subframe, the proportion of the almost blank subframe in the scheduling period, the proportion of the first normal subframe in the scheduling period and the proportion of the second normal subframe in the scheduling period.

The embodiment of the application has at least the following beneficial effects: the method comprises the steps of solving a first function relation by constructing the first function relation of the combination of throughput and transmission configuration parameters of the air-ground integrated network and taking the maximized frequency efficiency as a target, so as to determine the optimal value of each parameter in the transmission configuration; therefore, the problem of spectrum efficiency reduction caused by cross-link interference in the air-ground integrated network is solved, and the working efficiency of the air-ground integrated network is improved.

In some embodiments, based on the embodiment shown in fig. 2, as shown in fig. 3, the method further comprises, after step 202, the steps of:

s203, constructing a utility function of the cell according to the transmission rate requirements of each uplink service and the transmission rate requirements of the downlink service in the cell.

Wherein the utility function represents the satisfaction degree of the cell in obtaining the transmission rate, and the utility function comprises the following formula:

U ^BE (R)＝p2(1-e ^-q2R ),R≥0

U ^SQ utility function for soft quality of service requirements, U ^BE As utility function of best effort service, R is the reachable rate of terminal after being allocated time slot resource, R _th For the rate requirement of the cell, p1, q1, p2, q2 are coefficients that have an effect on the slope of the utility function.

S204, based on constraint conditions of time slot configuration, solving the utility function of the cell with the function value of the utility function of the maximized cell as a target to obtain the optimal value of the parameter combination in the time slot resource.

Wherein, the parameter combination of the time slot resources comprises the following parameters: the proportion of time slots in normal subframes occupied by each uplink service, the proportion of time slots in almost blank subframes occupied by each uplink service, the proportion of time slots in normal subframes occupied by each downlink service, and the proportion of time slots in almost blank subframes occupied by each downlink service.

It will be appreciated that when the function value of the utility function is maximized, the function value of the utility function does not increase even if the cell obtains more slot resources. Based on the embodiment shown in fig. 2, this embodiment allocates resources in the transmission configuration parameters that aim to maximize the spectrum efficiency of the air-to-ground integrated network in the embodiment shown in fig. 2. From this, the parameter configuration in the slot resources satisfies the following constraint: the number of time slots in the normal subframes occupied by each uplink service is smaller than or equal to the number of the first normal subframes, the number of time slots in the normal subframes occupied by each downlink service is smaller than or equal to the number of the second normal subframes, and the sum of the number of time slots in the almost blank subframes occupied by each uplink service and the number of time slots in the almost blank subframes occupied by each downlink service is smaller than or equal to the number of the almost blank subframes.

In some embodiments, for the utility function in S203, the reachable rate R of the terminal after the timeslot resource is allocated is assigned in a scientifically allowed interval, and when the function value of the utility function is determined to be the maximum value by traversing the value of the parameter in the scientific interval, the value of the reachable rate R of the terminal after the timeslot resource is allocated is determined.

Exemplary, the value interval that the terminal of a cell can traverse the reachable rate R after being allocated with time slot resources is { R } ₁ ，R ₂ ，R ₃ ，R ₄ ，R ₅ Traversing the values in the R interval one by one to a utility function, and obtaining the reachable rate R of the terminal after being allocated with time slot resources as R through calculation ₂ And when the function value of the utility function is the maximum value U.

The utility function is combined with the parameters of the time slot resources, and the following formula is satisfied:

proportion of time slots in normal subframe occupied by each uplink service, +.>

Proportion of time slots in normal subframe occupied by each downlink service, +.>

Proportion of time slots in almost blank subframes occupied for respective upstream services, +.>

The proportion of time slots in the almost blank subframes occupied for each downlink service, +.>

Utility function value when the terminal performs downlink service, < ->

Utility function value when uplink service is carried out for terminal, < >>

The number of terminals for downstream traffic for access to the base station, is +>

The number of terminals for uplink traffic for access base station,/->

Transmission rate requirements for individual downstream services in a cell,/-for>

A, for the transmission rate requirement of each uplink service in a cell ^l A is the proportion of almost blank subframes in a scheduling period ^n,u A is the proportion of the first normal subframe in the scheduling period ^n,d For the proportion of the second normal subframe in the scheduling period, +.>

For accessing the terminal number of the air-ground integrated network, < >>

Spectral efficiency when uplink traffic is transmitted on almost blank subframes for air-to-ground integrated networks, < >>

It can be appreciated that the uplink interference experienced by a cell can be expressed as long term average interference

At this time, the problem of maximizing the network effect of the overall network is equivalent to the problem of maximizing the utility of each cell, and the above formula is sorted to obtain the following formula:

deriving the above formula to obtain the proportion of time slots in the normal sub-frame occupied by each uplink service

Proportion of time slots in normal subframe occupied by each downlink service +.>

Proportion of time slots in almost blank sub-frame occupied by each uplink service +.>

Proportion of time slots in almost blank subframes occupied by each downlink service

The following functions:

utility function for soft quality of service requirements of cells when performing uplink traffic, +.>

For the utility function of best effort traffic of the cell when doing the uplink traffic +.>

Utility function for soft qos requirements of cells in downlink traffic>

For the utility function of the best effort service of the cell when doing the downlink service +.>

For the spectrum efficiency of the air-ground integrated network when carrying out downlink service transmission on almost blank subframes, m is m service flows can acquire service from the base station j,

for the number of terminals connected to base station j.

Under the condition that the function value of the utility function is the maximum value, substituting the maximum value of the function and related parameters into the function to calculate the optimal value of the parameter combination in the time slot resource, namely the proportion of time slots in the normal subframes occupied by each uplink service, the proportion of time slots in the almost blank subframes occupied by each uplink service, the proportion of time slots in the normal subframes occupied by each downlink service and the proportion of time slots in the almost blank subframes occupied by each downlink service.

The embodiment of the application has at least the following beneficial effects: by constructing the utility function of the cell and taking the maximum value of the function value of the utility function as a target, the optimal value of the parameter combination in the time slot resource is obtained, and the satisfaction degree of the user and the utilization rate of the time slot resource can be improved.

The foregoing description of the solution provided in the embodiments of the present application has been mainly presented in terms of a method. To achieve the above functions, it includes corresponding hardware structures and/or software modules that perform the respective functions. Those of skill in the art will readily appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware 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 application.

The embodiment of the present application may divide the functional modules of the communication device according to the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated modules may be implemented in hardware or in software functional modules. Optionally, the division of the modules in the embodiments of the present application is schematic, which is merely a logic function division, and other division manners may be actually implemented.

Fig. 4 is a schematic structural diagram of a transmission configuration device of an air-ground integrated network according to an embodiment of the present application, where, as shown in fig. 4, the device includes: a first construction module 401 and a determination module 402.

Wherein, the first construction module 401 is configured to construct a first functional relationship between throughput and transmission configuration parameter combination of the air-ground integrated network.

A determining module 402, configured to solve the first functional relationship with the objective of maximizing the throughput of the air-ground integrated network, and determine an optimal value of each parameter in the transmission configuration parameter combination.

In some embodiments, the apparatus further comprises: a second construction module 403, configured to construct a utility function of the cell according to the transmission rate requirement of each uplink service and the transmission rate requirement of the downlink service in the cell. The solving module 404 is configured to solve the utility function of the cell with the objective of maximizing the function value of the utility function of the cell based on the constraint condition of the time slot configuration, so as to obtain the proportion of the time slots in the normal subframes occupied by each uplink service, the proportion of the time slots in the almost blank subframes occupied by each uplink service, the proportion of the time slots in the normal subframes occupied by each downlink service, and the proportion of the time slots in the almost blank subframes occupied by each downlink service.

In the case of implementing the functions of the integrated modules in the form of hardware, the embodiments of the present application provide another possible structure of the transmission configuration apparatus of the air-ground integrated network referred to in the embodiments described above. As shown in fig. 5, the transmission configuration apparatus 50 of the air-ground integrated network includes: a processor 502, a bus 504. Optionally, the transmission configuration device of the air-ground integrated network may further include a memory 501; optionally, the transmission configuration device of the air-ground integrated network may further include a communication interface 503.

The processor 502 may be any logic block, module, or circuit that implements or performs the various examples described in connection with embodiments of the application. The processor 502 may be a central processor, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various exemplary logic blocks, modules and circuits described in connection with embodiments of the present application. The processor 502 may also be a combination of computing functions, e.g., comprising one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.

A communication interface 503 for connecting with other devices via a communication network. The communication network may be an ethernet, a radio access network, a wireless local area network (wireless local area networks, WLAN), etc.

Memory 501, which may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that may store static information and instructions, a random access memory (random access memory, RAM) or other type of dynamic storage device that may store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), magnetic disk storage or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.

As a possible implementation, the memory 501 may exist separately from the processor 502, and the memory 501 may be connected to the processor 502 through the bus 504 for storing instructions or program codes. When the processor 502 invokes and executes the instructions or the program codes stored in the memory 501, the transmission configuration method of the air-ground integrated network provided in the embodiment of the application can be implemented.

In another possible implementation, the memory 501 may also be integrated with the processor 502.

Bus 504, which may be an extended industry standard architecture (extended industry standard architecture, EISA) bus or the like. The bus 504 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in fig. 5, but not only one bus or one type of bus.

The present application also provides a computer-readable storage medium including computer-executable instructions that, when executed on a computer, cause the computer to perform a method as provided in the above embodiments.

The present application also provides a computer program product directly loadable into a memory and including software code, which, when loaded and executed via a computer, is able to carry out the method provided by the above embodiments.

Those of skill in the art will appreciate that in one or more of the examples described above, the functions described herein may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, these functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer. From the foregoing description of the embodiments, it will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of functional modules is illustrated, and in practical application, the above-described functional allocation may be implemented by different functional modules according to needs, i.e. the internal structure of the apparatus is divided into different functional modules to implement all or part of the functions described above.

The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A transmission configuration method of an air-ground integrated network, wherein the air-ground integrated network includes at least one high-altitude base station and at least one ground base station, the method comprising:

constructing a first functional relation between throughput and transmission configuration parameter combination of the air-ground integrated network; wherein the transmission configuration parameter combination includes the following parameters: the downlink transmitting power of the high-altitude base station on the almost blank subframe, the proportion of the almost blank subframe in the scheduling period, the proportion of the first normal subframe in the scheduling period and the proportion of the second normal subframe in the scheduling period; the sum of the proportion of the almost blank subframes in the scheduling period, the proportion of the first normal subframes in the scheduling period and the proportion of the second normal subframes in the scheduling period is equal to 1; the first normal subframe is a normal subframe for uplink service, and the second normal subframe is a normal subframe for downlink service;

And solving the first functional relation with the aim of maximizing the throughput of the air-ground integrated network, and determining the optimal value of each parameter in the transmission configuration parameter combination.

2. The method of claim 1, wherein a throughput of the air-to-ground integrated network is equal to a sum of a throughput of the at least one high-altitude base station and a throughput of the at least one ground base station in the air-to-ground integrated network.

3. The method of claim 2, wherein the throughput of the high-altitude base station is determined based on a spectral efficiency of a first link of the Gao Kongji station, a spectral efficiency of a second link of the Gao Kongji station, a spectral efficiency of a third link of the Gao Kongji station, a fraction of the almost blank subframes in a scheduling period, a fraction of the first normal subframes in a scheduling period, and a fraction of the second normal subframes in a scheduling period; the first link is a link established by the terminal and the Gao Kongji station for uplink service transmission on a first normal subframe, the second link is a link established by the terminal and the Gao Kongji station for downlink service transmission on a second normal subframe, and the third link is a link established by the terminal and the high-altitude base station for downlink service transmission on an almost blank subframe;

The spectral efficiency of the third link is determined according to the downlink transmission power of the high altitude base station on the almost blank subframe.

4. The method of claim 2, wherein the throughput of the ground base station is determined based on a spectral efficiency of a fourth link of the ground base station, a spectral efficiency of a fifth link of the ground base station, a spectral efficiency of a sixth link of the ground base station, a spectral efficiency of a seventh link of the ground base station, a fraction of the almost blank subframes in a scheduling period, a fraction of the first normal subframes in a scheduling period, and a fraction of the second normal subframes in a scheduling period; the fourth link is a link established by the terminal and the ground base station for uplink service transmission on a first normal subframe, the fifth link is a link established by the terminal and the ground base station for downlink service transmission on a second normal subframe, the sixth link is a link established by the terminal and the ground base station for downlink service transmission on an almost blank subframe, and the seventh link is a link established by the terminal and the ground base station for uplink service transmission on an almost blank subframe;

The spectral efficiency of the sixth link and the spectral efficiency of the seventh link are determined according to the downlink transmission power of the high altitude base station on the almost blank subframe.

5. The method according to any one of claims 1 to 4, further comprising:

constructing a utility function of a cell according to the transmission rate requirements of each uplink service and the transmission rate requirements of downlink services in the cell;

based on constraint conditions of time slot configuration, the utility function of the cell is solved with the aim of maximizing the function value of the utility function of the cell, so that the proportion of time slots in normal subframes occupied by each uplink service, the proportion of time slots in almost blank subframes occupied by each uplink service, the proportion of time slots in normal subframes occupied by each downlink service and the proportion of time slots in almost blank subframes occupied by each downlink service are obtained.

6. A transmission configuration apparatus of an air-ground integrated network, wherein the air-ground integrated network includes at least one high-altitude base station and at least one ground base station, the apparatus comprising:

a first construction module, configured to construct a first functional relationship between throughput and transmission configuration parameter combinations of the air-ground integrated network; wherein the transmission configuration parameter combination includes the following parameters: the downlink transmitting power of the high-altitude base station on the almost blank subframe, the proportion of the almost blank subframe in the scheduling period, the proportion of the first normal subframe in the scheduling period and the proportion of the second normal subframe in the scheduling period; the sum of the proportion of the almost blank subframes in the scheduling period, the proportion of the first normal subframes in the scheduling period and the proportion of the second normal subframes in the scheduling period is equal to 1; the first normal subframe is a normal subframe for uplink service, and the second normal subframe is a normal subframe for downlink service;

And the determining module is used for solving the first functional relation with the aim of maximizing the throughput of the air-ground integrated network and determining the optimal value of each parameter in the transmission configuration parameter combination.

7. The apparatus of claim 6, wherein a throughput of the air-to-ground integrated network is equal to a sum of a throughput of the at least one high-altitude base station and a throughput of the at least one ground base station in the air-to-ground integrated network.

8. The apparatus of claim 7, wherein the throughput of the high-altitude base station is determined based on a spectral efficiency of a first link of the Gao Kongji station, a spectral efficiency of a second link of the Gao Kongji station, a spectral efficiency of a third link of the Gao Kongji station, a fraction of the almost blank subframes in a scheduling period, a fraction of the first normal subframes in a scheduling period, and a fraction of the second normal subframes in a scheduling period; the first link is a link established by the terminal and the Gao Kongji station for uplink service transmission on a first normal subframe, the second link is a link established by the terminal and the Gao Kongji station for downlink service transmission on a second normal subframe, and the third link is a link established by the terminal and the high-altitude base station for downlink service transmission on an almost blank subframe;

9. The apparatus of claim 7, wherein the throughput of the ground base station is determined based on a spectral efficiency of a fourth link of the ground base station, a spectral efficiency of a fifth link of the ground base station, a spectral efficiency of a sixth link of the ground base station, a spectral efficiency of a seventh link of the ground base station, a fraction of the almost blank subframes in a scheduling period, a fraction of the first normal subframes in a scheduling period, and a fraction of the second normal subframes in a scheduling period; the fourth link is a link established by the terminal and the ground base station for uplink service transmission on a first normal subframe, the fifth link is a link established by the terminal and the ground base station for downlink service transmission on a second normal subframe, the sixth link is a link established by the terminal and the ground base station for downlink service transmission on an almost blank subframe, and the seventh link is a link established by the terminal and the ground base station for uplink service transmission on an almost blank subframe;

10. The apparatus according to any one of claims 6 to 9, further comprising:

the second construction module is used for constructing a utility function of the cell according to the transmission rate requirements of each uplink service and the transmission rate requirements of the downlink service in the cell;

the solving module is used for solving the utility function of the cell based on the constraint condition of time slot configuration and taking the function value of the utility function of the cell as the target to obtain the proportion of time slots in normal subframes occupied by each uplink service, the proportion of time slots in almost blank subframes occupied by each uplink service, the proportion of time slots in normal subframes occupied by each downlink service and the proportion of time slots in almost blank subframes occupied by each downlink service.

11. A transmission configuration apparatus of an air-ground integrated network, characterized by comprising a processor, which when executing a computer program implements the transmission configuration method of an air-ground integrated network according to any one of claims 1 to 5.

12. A computer-readable storage medium, the computer-readable storage medium comprising computer instructions; wherein the computer instructions, when executed, implement the transmission configuration method of the air-to-ground integrated network of any one of claims 1 to 5.