Deployment methods, equipment, communication systems, and storage media for emergency communication networks

Abstract

This application discloses a deployment method, device, communication system, and storage medium for an emergency communication network. The method includes: deploying access network functions of multiple communication networks on a base station mounted on a UAV using a co-location deployment approach; wherein the base station is connected to a switch via a satellite backhaul link and / or a wireless backhaul link, and the switch is connected to the core network equipment of each of the multiple communication networks, which include multiple operators' cellular public networks. In this way, access network functions of multiple operators' cellular public networks can be deployed on the UAV's base station using a co-location deployment approach, effectively reducing the requirements on the UAV flight platform in emergency communication scenarios. This allows for an increase in the number of UAV models providing multi-network signal coverage, reduces usage costs, facilitates network deployment and timely communication assurance in emergency communication scenarios, and ultimately improves the efficiency of emergency rescue.

Description

Technical Field

[0001] This application relates to the field of emergency communications, and more particularly to a method, device, communication system, and storage medium for deploying an emergency communication network. Background Technology

[0002] In the event of a major natural disaster, communication infrastructure may be damaged, resulting in the inability to provide normal communication services. To address network service disruptions in scenarios involving three disruptions (circuit outage, power outage, and network outage), related technologies may employ drones carrying public network base stations and using satellite communication or other signal links as backhaul links to connect to the operator's core network. This can provide temporary network signal coverage and promptly offer communication services to people and / or rescue personnel in disaster-stricken areas.

[0003] However, in emergency communication scenarios, achieving full network signal coverage for operators requires drones to carry multiple base stations, placing high demands on the drone platform's payload, available space, and power supply. The payload weight and installation space of small and medium-sized drones often cannot support this, necessitating the use of large, long-endurance fixed-wing drones. This results in high operating costs, hinders widespread deployment, and impacts network deployment and communication effectiveness in emergency communication scenarios. Summary of the Invention

[0004] In view of this, embodiments of this application provide a deployment method, device, communication system, and storage medium for an emergency communication network, aiming to effectively improve communication performance in emergency communication scenarios.

[0005] The technical solution of this application embodiment is implemented as follows:

[0006] In a first aspect, embodiments of this application provide a method for deploying an emergency communication network, comprising:

[0007] On the base station mounted on the drone, the access network function of multiple communication networks is deployed based on the co-site deployment method;

[0008] The base station is connected to a switch via a satellite backhaul link and / or a wireless backhaul link. The switch is connected to the core network equipment of each of the multiple communication networks, which include the public cellular networks of multiple operators.

[0009] In the above scheme, the deployment of access network functions for multiple communication networks based on co-site deployment includes:

[0010] The access network function of multiple communication networks is deployed using a single-carrier co-site deployment method; or,

[0011] The access network function of multiple communication networks is deployed using a multi-carrier co-site deployment method.

[0012] In the above scheme, the deployment of access network functions for multiple communication networks using a single-carrier co-site deployment method includes:

[0013] Select the network standard based on the terminal types that need to be compatible, and determine the target frequency band shared under the network standard;

[0014] Network capacity planning is performed on the target frequency band to obtain the radio resource block configuration information of each communication network;

[0015] Configure the Tracking Area Code (TAC) information shared by the multiple communication networks;

[0016] Based on the TAC information and the radio resource block configuration information of each of the communication networks, the cell parameters of each of the communication networks are configured.

[0017] In the above scheme, the step of performing network capacity planning on the target frequency band to obtain the radio resource block configuration information of each communication network includes:

[0018] Based on the historical number of users and / or the planned number of users in the coverage area of ​​each communication network corresponding to the base station, the capacity ratio of each communication network is determined.

[0019] Based on the capacity ratio, the target frequency band is divided to obtain the radio resource block configuration information of each communication network.

[0020] In the above scheme, the plurality of communication networks further includes: a private cellular network, and the method further includes:

[0021] The core network functions of the cellular private network are deployed on the base station.

[0022] In the above scheme, the deployment of access network functions for multiple communication networks using a multi-carrier co-site deployment method includes:

[0023] The number of carriers is determined based on at least one of the following: the payload capacity of the UAV, the communication capability of the base station, the communication capacity requirement, and the backhaul link bandwidth.

[0024] Based on the number of carriers, carriers are allocated to the multiple communication networks, and the network standard and target frequency band of each carrier are determined.

[0025] Network capacity planning is performed on the target frequency band of each carrier to obtain the radio resource block configuration information of the communication network carried by it;

[0026] Configure the Tracking Area Code (TAC) information for each carrier;

[0027] For each carrier, based on the TAC information and the radio resource block configuration information of the communication network it carries, the cell parameters of each communication network are configured.

[0028] In the above scheme, the step of performing network capacity planning for the target frequency band of each carrier to obtain the radio resource block configuration information of the communication network includes:

[0029] For each carrier's target frequency band, based on the historical number of users and / or the planned number of users in the coverage area of ​​the communication network corresponding to the base station, the capacity ratio of the communication network is determined.

[0030] Based on the capacity ratio, the target frequency band is divided to obtain the wireless resource block configuration information of the communication network it carries.

[0031] In the above scheme, the plurality of communication networks further includes: a private cellular network, and the method further includes:

[0032] The core network functions of the cellular private network are deployed on the base station.

[0033] Secondly, embodiments of this application provide a communication system, including: a drone, wherein the drone is equipped with a base station deployed as described in the first aspect of embodiments of this application.

[0034] Thirdly, embodiments of this application provide an electronic device, including: a processor and a memory for storing a computer program capable of running on the processor, wherein, when the processor is used to run the computer program, it executes the steps of the method described in the first aspect of embodiments of this application.

[0035] Fourthly, embodiments of this application provide a computer storage medium storing a computer program, which, when executed by a processor, implements the steps of the method described in the first aspect of embodiments of this application.

[0036] The technical solution provided in this application deploys access network functions of multiple communication networks on a base station mounted on a UAV using a co-location deployment method. The base station is connected to a switch via a satellite backhaul link and / or a wireless backhaul link. The switch connects to the core network equipment of each of the multiple communication networks, which include cellular public networks from multiple operators. This co-location deployment method allows for the deployment of access network functions of multiple operators' cellular public networks on the UAV's base station, effectively reducing the requirements on the UAV flight platform in emergency communication scenarios. This allows for an increase in the number of UAV models providing multi-network signal coverage, reduces usage costs, facilitates network deployment and timely communication assurance in emergency communication scenarios, and ultimately improves the efficiency of emergency rescue. Attached Figure Description

[0037] Figure 1 This is a flowchart illustrating the deployment method of an emergency communication network according to an embodiment of this application;

[0038] Figure 2 This is a schematic diagram of a network structure where multiple operator networks and cellular private networks are co-located on a base station mounted on a drone, as shown in one application example of this application.

[0039] Figure 3 This is a flowchart illustrating the deployment method of an application communication network in one application embodiment of this application;

[0040] Figure 4 This is a schematic diagram of the frequency allocation of three operators' 4G networks in the B3 band in an application example of this application.

[0041] Figure 5 This is a flowchart illustrating a method for deploying an application communication network in another embodiment of this application;

[0042] Figure 6 This is a schematic diagram of the LTE B5 and B8 frequency band spectrum allocation for an operator in an application example of this application;

[0043] Figure 7 This is a schematic diagram of spectrum allocation for operators B3 and N28 in an application example of this application;

[0044] Figure 8 This is a schematic diagram of the structure of an electronic device according to an embodiment of this application. Detailed Implementation

[0045] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0047] This application provides a method for deploying an emergency communication network, such as... Figure 1 As shown, the method includes:

[0048] Step 101: Deploy access network functions of multiple communication networks on the base station mounted on the UAV using a co-location deployment method.

[0049] It should be noted that, in this embodiment of the application, the base station mounted on the UAV is also connected to a ground switch based on a satellite backhaul link and / or a wireless backhaul link. The switch is connected to the core network equipment of each of the multiple communication networks, and the multiple communication networks include the public cellular networks of multiple operators.

[0050] For example, platform devices used for configuring base stations can use MOCN or RANSHARE technologies to co-deploy access network functions of multiple communication networks on the same base station. MOCN (Multi-Operator Core Network) technology refers to two or more core networks sharing the same radio access network (RAN) and sharing frequencies, while each core network remains independent. RANSHARE technology refers to each operator using its own dedicated radio frequency to share the radio access network (RAN), meaning that operators can independently perform cell-level control.

[0051] It should be noted that MOCN or RANSHARE technologies are network sharing technologies developed to address the limitation of air interface spectrum resources. However, in the scenario of UAV base stations, the spectrum and air interface are not limited; the main limitations are backhaul links, continuous coverage, transmit power, and equipment size and weight. This application's embodiments cleverly utilize MOCN or RANSHARE technologies to deploy access network functions for multiple operators' public cellular networks on the base station mounted on the UAV, sharing air interface and backhaul resources. This effectively reduces the requirements for UAV flight platforms in emergency communication scenarios while meeting the network signal coverage needs of multiple operator users. This allows for an increase in the number of UAV models providing multi-network signal coverage, reduces usage costs, facilitates network deployment and timely communication assurance in emergency communication scenarios, and ultimately improves the efficiency of emergency rescue.

[0052] It should be noted that in emergency rescue scenarios, there are significant differences between drone-based aerial base stations and ground-based base stations. For example, backhaul links are limited, the continuous ground coverage area and signal propagation models differ. Existing technologies only support single-carrier network deployment or require the connection of multiple carrier base stations to achieve multi-carrier network deployment. To achieve full carrier network signal coverage, drones need to carry multiple base stations from different carriers to form ground-based signal coverage. This requires installing multiple antennas on the drone, which occupies a large amount of space and makes it difficult to guarantee coverage consistency. In this embodiment, a co-site deployment method is adopted, which can reduce the complexity of antenna installation and deployment on drones and effectively ensure the consistency of signal coverage across multiple networks.

[0053] Understandably, satellite backhaul links and / or wireless backhaul links can be configured with VLANs (Virtual Local Area Networks). Each communication network can access the ground switch based on the corresponding VLAN and access the corresponding core network equipment through the ground transmission network, thus realizing the co-location deployment of multiple communication networks.

[0054] For example, the deployment of access network functions for multiple communication networks based on co-site deployment includes:

[0055] The access network function of multiple communication networks is deployed using a single-carrier co-site deployment method; or,

[0056] The access network function of multiple communication networks is deployed using a multi-carrier co-site deployment method.

[0057] It is understood that the embodiments of this application can deploy multiple communication networks using a single carrier or multiple carriers to meet the flexibility requirements of base station deployment on UAVs, thereby being compatible with the emergency deployment needs of various UAV models and helping to ensure the reliability of emergency rescue.

[0058] For example, the deployment of access network functions for multiple communication networks using a single-carrier co-site deployment method includes:

[0059] Select the network standard based on the terminal types that need to be compatible, and determine the target frequency band shared under the network standard;

[0060] Network capacity planning is performed on the target frequency band to obtain the radio resource block configuration information of each communication network;

[0061] Configure the TAC information shared by the multiple communication networks;

[0062] Based on the TAC information and the radio resource block configuration information of each of the communication networks, the cell parameters of each of the communication networks are configured.

[0063] In practical applications, if the payload weight, power supply, and installation space of the drone cannot meet the conditions for multi-carrier deployment, a single-carrier co-site deployment method can be adopted. For example, the decision to adopt a single-carrier deployment method can be determined based on the drone model.

[0064] Here, in order to be compatible with as many terminal types as possible, the network standard can be selected to support the widest range of network standards, such as deploying the LTE (Long Term Evolution) network standard.

[0065] For example, to achieve single-carrier multi-operator network sharing, theoretically, a shared target frequency band can be arbitrarily selected from the existing network deployment spectrum under each operator's specific RAT (radio access technology). Here, the existing network deployment spectrum refers to the spectrum already deployed by the operator in actual applications. Considering the significant differences between air-to-ground propagation models and ground propagation models in UAV emergency communication scenarios, to achieve on-demand coverage of the target area, it is necessary to make decisions based on the size of the target area and the geographical environment to select an appropriate frequency band.

[0066] For example, in coverage-priority scenarios, lower frequency bands are preferred for carrier deployment; in capacity-priority scenarios, higher bandwidth bands are preferred, and for the same bandwidth, lower frequency bands are preferred. Generally, in emergency scenarios, a larger coverage area is more demanding, and lower frequency bands can be prioritized by default to achieve a larger coverage area.

[0067] For example, the step of performing network capacity planning on the target frequency band to obtain radio resource block configuration information for each of the communication networks includes:

[0068] Based on the historical number of users and / or the planned number of users in the coverage area of ​​each communication network corresponding to the base station, the capacity ratio of each communication network is determined.

[0069] Based on the capacity ratio, the target frequency band is divided to obtain the radio resource block configuration information of each communication network.

[0070] In one application example, prior information prior to network service interruption can be obtained, such as traffic statistics of each operator, to determine the historical number of users of each communication network in the target coverage area, and to allocate wireless resources based on the proportion of historical users of each communication network, thereby obtaining the wireless resource block configuration information of each communication network. In this way, the actual capacity requirements of users of each operator in emergency rescue scenarios can be better met, which is conducive to effectively ensuring the communication reliability in emergency rescue scenarios.

[0071] In other application examples, multiple communication networks may also include private cellular networks, which can allocate radio resource blocks of carriers based on the planned number of users, thereby effectively ensuring the communication capacity requirements of private cellular networks.

[0072] For example, a shared TAC can be configured for multiple communication networks to set system message tracking area information. Since ground base stations are often out of service during emergency rescue scenarios, the number of cells within the planned TAC area is relatively small. Therefore, the TACs of multiple operator networks should be different from the TACs of other areas in the existing network, and multiple networks should share the same TAC.

[0073] It is understood that the platform device can configure the cell parameters of each communication network based on the TAC information and the radio resource block configuration information of each communication network. For example, the cell parameters include: information indicating radio resource allocation, PLMN ID (Public Land Mobile Network ID), and TAC location area. The allocated VLAN IDs are connected to different network core networks via satellite communication links or other dedicated wireless backhaul links, enabling single-carrier support for multiple public network signal coverage. The PLMN ID list is broadcast in the cell system message, and the terminal selects different networks to access based on its own network.

[0074] It should be noted that, in the relevant technologies, considering that rescuers use networks from different operators, their service priority is difficult to guarantee. Traditional technologies generally use whitelists to ensure the priority of rescue commanders, but this is troublesome to manage. In addition, when local rescuers communicate with each other, it will consume valuable satellite communication resources. If additional cellular private network signal coverage is required, a private network base station needs to be mounted on the drone, which places higher demands on the installation and deployment of the base station and the drone.

[0075] Based on this, the plurality of communication networks described in the embodiments of this application may further include: a cellular private network. This allows for the co-location of public cellular networks and cellular private networks, thereby achieving isolation between the public and private networks in application rescue scenarios and ensuring that the QoS (Quality of Service) of private network users is not impacted by public network users. The cellular private network can be used for communication transmission of critical command and control tasks in emergency rescue.

[0076] It should be noted that the core network functions for cellular devices can be deployed in ground-based core network equipment. For example, a base station on a drone can be connected to a ground-based switch via a satellite backhaul link or a wireless backhaul link, and then connected to the cellular core network equipment via the switch.

[0077] For example, the method further includes: deploying the core network functions of the cellular private network on the base station.

[0078] It should be noted that deploying core network functions in an integrated manner on the base station mounted on the drone can effectively reduce backhaul latency and bandwidth requirements, enabling rescue personnel to exchange data locally without occupying satellite communication resources. This, in turn, can provide more satellite communication resources for public network users, thereby ensuring the reliability of communication in emergency rescue scenarios.

[0079] For example, the deployment of access network functions for multiple communication networks using a multi-carrier co-site deployment method includes:

[0080] The number of carriers is determined based on at least one of the following: the payload capacity of the UAV, the communication capability of the base station, the communication capacity requirement, and the backhaul link bandwidth.

[0081] Based on the number of carriers, carriers are allocated to the multiple communication networks, and the network standard and target frequency band of each carrier are determined.

[0082] Network capacity planning is performed on the target frequency band of each carrier to obtain the radio resource block configuration information of the communication network carried by it;

[0083] Configure the TAC information for each carrier;

[0084] For each carrier, based on the TAC information and the radio resource block configuration information of the communication network it carries, the cell parameters of each communication network are configured.

[0085] In practical applications, the selection of the number of carriers depends on at least one of the following: the communication capability of the airborne base station, the payload capacity of the UAV, the communication capacity requirements, and the backhaul link bandwidth. The communication capability of the base station includes the capabilities of its baseband unit (BBU) and radio frequency unit (RF unit), which can be either an RRU (Remote Radio Unit) or an AAU (Active Antenna Unit).

[0086] For example, multi-carrier deployment is typically not feasible for small and medium-sized drones, especially those with a payload weight of less than 100 kg. For medium and large drones with a payload weight exceeding 100 kg, multi-carrier deployment is possible, while also considering power consumption and equipment installation constraints. In multi-carrier deployment scenarios, the number of carriers supported by a single base station is usually large, generally more than three. The number of carriers is limited by the backhaul link bandwidth. The number of carriers can be determined based on communication capacity requirements and backhaul link bandwidth, while meeting the drone's payload weight, power supply, and installation constraints.

[0087] For example, after determining the number of carriers, the frequency band used for each carrier needs to be selected based on the operator's spectrum allocation information and network standard. The selection of network standard for each operator can refer to the aforementioned single-carrier selection method; for example, selecting the standard most widely supported by the user's mobile phone, such as currently prioritizing LTE. Once the network standard and carrying operator for the carrier configuration are determined, the target frequency band for each carrier can be selected under the spectrum allocated for the corresponding network standard by the operator.

[0088] For example, the step of performing network capacity planning on the target frequency band of each carrier to obtain the radio resource block configuration information of the communication network being carried includes:

[0089] For each carrier's target frequency band, based on the historical number of users and / or the planned number of users in the coverage area of ​​the communication network corresponding to the base station, the capacity ratio of the communication network is determined.

[0090] Based on the capacity ratio, the target frequency band is divided to obtain the wireless resource block configuration information of the communication network it carries.

[0091] Understandably, by allocating network resources reasonably according to the communication networks they carry, different carriers can better meet the actual capacity needs of users of various operators in emergency rescue scenarios, and help to effectively ensure the reliability of communication in emergency rescue scenarios.

[0092] For example, TACs can be configured on a carrier-by-carrier basis. For instance, if one carrier broadcasts the PLMNs of operators A and B, then operators A and B negotiate a common TAC. If another carrier broadcasts the PLMNs of operators C and D, then operators C and D can jointly negotiate a single TAC. If a private cellular network shares a carrier with a public network operator, then the operator's TAC is reused; if the private network uses a separate carrier, then any non-conflicting TAC can be planned.

[0093] It is understood that, for each carrier, the platform device can configure the cell parameters of each communication network based on the TAC information and the radio resource block configuration information of the carried communication network. For example, the cell parameters include: information indicating radio resource allocation, PLMN ID, and TAC location area. The allocated VLAN IDs are connected to different network core networks via satellite communication links or other dedicated wireless backhaul links, enabling multi-carrier support for public network multi-network signal coverage. The PLMN ID list is broadcast in the cell system message, and the terminal selects different networks to access based on its own network.

[0094] For example, the multiple communication networks deployed in a multi-carrier co-site configuration may also include a private cellular network. This allows for the co-location of public and private cellular networks, thereby achieving isolation between the public and private networks in emergency rescue scenarios and ensuring that the QoS of private network users is not impacted by public network users. The private cellular network can be used for communication transmission in critical command and control tasks during emergency rescue.

[0095] For example, the method further includes: deploying the core network functions of the cellular private network on the base station.

[0096] It should be noted that deploying core network functions in an integrated manner on the base station mounted on the drone can effectively reduce backhaul latency and bandwidth requirements, enabling rescue personnel to exchange data locally without occupying satellite communication resources. This, in turn, can provide more satellite communication resources for public network users, thereby ensuring the reliability of communication in emergency rescue scenarios.

[0097] In one application example, multi-carrier networks and private cellular networks can be co-located on a base station mounted on a drone, with the network structure as follows: Figure 2 As shown. The base station mounted on the UAV can be called a full-network compatible base station. This base station connects to a satellite ground station via a satellite backhaul link and to a ground wireless backhaul node via a dedicated wireless loop link. The satellite ground station and the ground wireless backhaul node are connected to a ground-based switch, which in turn connects to different operator core networks (such as...) through a transmission network. Figure 2 The core networks of operators A through D and the private network core networks are shown.

[0098] Understandably, satellite backhaul links and wireless backhaul links can be configured with VLANs. Each operator's public cellular network and private cellular network can access the ground switch based on the corresponding VLAN, and then access the corresponding core network equipment through the ground transmission network, thus realizing the co-location deployment of multiple communication networks.

[0099] The present application will be further described in detail below with reference to application examples.

[0100] Application Example 1

[0101] This application example illustrates a scenario where multiple networks share a single carrier at a single site. (Refer to...) Figure 3 The deployment method for emergency communication networks includes the following steps:

[0102] Step 301, spectrum selection.

[0103] In emergency rescue scenarios, achieving terrestrial public network coverage requires the use of licensed public network spectrum. Since existing communication networks in the target area are down, there is no spectrum interference issue, and air interface spectrum resources are relatively abundant. The main limitations of emergency communication systems are the backhaul link, the weight of the UAV flight platform payload, installation size, and power consumption. To achieve spectrum selection for emergency network deployment, it is necessary to select the network standard and the corresponding frequency band.

[0104] Here, to ensure compatibility with more terminal types, the network standard can be selected based on the network standard most widely supported by the mobile phone. For example, emergency communication systems can deploy the LTE network standard.

[0105] For example, to achieve single-carrier multi-operator network sharing, theoretically, any spectrum can be selected from the existing network deployment spectrum under each operator's specific RAT. However, the air-to-ground propagation model and the ground propagation model differ significantly in UAV emergency communication scenarios. To achieve on-demand coverage of the target area, it is necessary to make decisions based on the size of the target area and the geographical environment to select an appropriate frequency band.

[0106] In coverage-first scenarios, lower frequency bands should be selected for carrier deployment whenever possible. In capacity-first scenarios, higher bandwidth frequency bands should be selected, and for the same bandwidth, lower frequency bands should be selected. Generally speaking, in emergency scenarios, a larger coverage area is more demanding, so by default, lower frequency bands are preferred to achieve a larger coverage area.

[0107] Figure 4 The diagram shows the frequency allocation of the three operators' 4G networks in the B3 band, all in the 1.8G band, where any 20MHz bandwidth can be selected to deploy an LTE cell.

[0108] For example, the spectrum selection for 5G NR can be made based on the operator's spectrum allocation information, such as the N28, N41, N78, N79 and other Sub6G bands, as well as the N257 and N258 millimeter wave bands. In coverage-priority scenarios, the N28 band is preferred for deployment. In capacity-priority scenarios, the N41 frequency can be preferred for NR cell deployment, and so on.

[0109] Optionally, a similar method can be used to select frequency bands for future evolutions such as 6G.

[0110] Step 302, network capacity planning.

[0111] Step 302 primarily addresses the allocation of radio resources across different networks on a carrier. Based on prior information before network outages, such as call statistics from various operators, the number of users in the target coverage area can be obtained. Radio resource blocks (RBs) on the carrier are then allocated proportionally based on the number of users. For scenarios requiring the deployment of a private cellular network, the RB resources on the carrier are divided according to the planned number of users or capacity requirements. Through the planning of different network capacities, radio resources are allocated and configured proportionally. Table 1 illustrates an example of radio resource allocation based on multiple network capacity requirements.

[0112] Table 1

[0113] network Operator A Operator B Operator C Operator D Cellular private network Number of users 150 50 150 100 50 RB allocation number 30 10 30 20 10

[0114] As shown in Table 1 above, each communication network can allocate wireless resources based on the proportion of users, which can better meet the actual capacity needs of users of various operators and private networks in emergency rescue scenarios.

[0115] It should be noted that network resources can be allocated on demand based on different capacity requirements, thereby enabling network deployment. If a network's capacity requirement is 0, it means that this network does not need to be deployed. In this case, network deployment can be optimized based on historical user data to achieve the optimal network performance design.

[0116] It should be noted that a key difference between the emergency communication system and the terrestrial cellular system in this application embodiment is the significant limitation of the UAV base station backhaul link. The backhaul link of this emergency communication system typically uses satellite communication links, mesh networks, or other dedicated links for backhaul to the ground. After allocating air interface resources according to network capacity, it is necessary to allocate backhaul link bandwidth as needed and map it to the transmission link according to the backhaul link characteristics and strategies.

[0117] Step 303, TAC planning.

[0118] To achieve shared carrier deployment for both public and private networks, each network needs to negotiate a common dedicated TAC. This shared TAC should not conflict with the existing network TAC plan to enable the setting of system message tracking area information. Due to the potential outage of ground base stations in emergency scenarios, the number of cells within the planned TAC area is relatively small. Therefore, the TACs of multiple operator networks should be as different as possible from the TACs of other areas in the existing network, and multiple networks should share the same TAC.

[0119] Step 304, Network Deployment.

[0120] After completing steps 301 to 303 above, configure cell parameters (including radio resource allocation, PLMN ID, and TAC location area) on the base station. Assign VLAN IDs and connect to different network core networks via satellite communication links or other dedicated wireless backhaul links. This enables single-carrier support for multiple network signals, including public and private networks. The cell system message will broadcast a list of PLMN IDs, allowing terminals to select different networks to access based on their home network.

[0121] Optionally, for public cellular networks, core network elements, as well as MEC (Mobile Edge Computing) and service platforms, can be deployed at the drone's base station according to business needs; for private cellular networks, the core network (which may include application platforms) can be deployed in an integrated manner with the base station to reduce backhaul latency and bandwidth requirements, while improving network deployment flexibility.

[0122] Application Example 2

[0123] To reduce terminal compatibility requirements or increase network capacity, multiple carriers can be deployed at a single site to carry multi-operator networks and private cellular networks. For example, to deploy networks of four operators (Operator A, Operator B, Operator C, and Operator D) and a private cellular network, two, three, or more carriers can be deployed at a single site. Operators A and B can share one carrier, Operator C and D can share one carrier, and the private network can have its own carrier or share a carrier with other operators.

[0124] This application example illustrates a scenario of a single-site multi-network shared multi-carrier setup. (Refer to...) Figure 5 The deployment method for emergency communication networks includes the following steps:

[0125] Step 501, Select the number of carriers.

[0126] Here, the selection of the number of carriers depends on the capabilities of the baseband and radio frequency units of the airborne base station, the payload capacity of the UAV, the communication capacity requirements, and the backhaul link bandwidth.

[0127] For example, the typical number of carriers is selected as 2 or 3 carriers, and the multi-network carrier sharing configuration table is shown in Table 2:

[0128] Table 2

[0129]

[0130] It should be noted that multi-carrier deployment is typically not feasible for small and medium-sized drones, especially those with a payload weight of less than 100kg. Medium and large drones with a payload weight exceeding 100kg can be equipped with multi-carrier systems, but power consumption and equipment installation constraints must also be considered. In multi-carrier deployment scenarios, the number of carriers supported by a single base station is usually large, generally more than three. In this case, the number of carriers is limited by the backhaul link bandwidth. The number of carriers can be determined based on communication capacity requirements and backhaul link bandwidth, while meeting the drone's payload weight, power supply, and installation constraints.

[0131] Step 502, spectrum selection.

[0132] After determining the number of carriers, the frequency band used for each carrier needs to be selected based on the operator's spectrum allocation information and network standard. The selection of network standard for each operator can refer to the aforementioned single-carrier selection method; for example, select the standard most widely supported by the user's mobile phone, such as LTE if possible. Once the network standard and operator for the carrier configuration are determined, the target frequency band for each carrier can be selected within the spectrum allocated to the corresponding network standard by the operator.

[0133] For example, if the private network spectrum and the public network share a carrier, then the spectrum selection should follow the public network selection; if the private network uses a separate carrier, another available spectrum can be selected based on the capabilities of the radio frequency unit (provided it does not cause spectrum interference).

[0134] Figure 6 This is a typical diagram illustrating the spectrum allocation of LTE B5 and B8 bands for a carrier. If a 2-carrier scheme is used, Carrier A, Carrier B, and the private network are deployed in the B8 band, while Carrier C and Carrier D are deployed in either the B5 or B8 band. If a 3-carrier scheme is used, Carrier A and Carrier B are deployed in the B8 band, Carrier C and Carrier D are deployed in the B5 band, and the private network is deployed in the B8 band. If the radio frequency unit supports multiple carriers and multiple bands, the private network can also be deployed in other bands as needed.

[0135] Optionally, the spectrum selection for 5G NR can be made based on the operator's spectrum allocation information, such as Sub6G bands like N28, N41, N78, and N79, as well as millimeter wave bands like N257 and N258.

[0136] Alternatively, a similar approach can be used for selecting frequency bands for subsequent evolutions such as 6G.

[0137] Alternatively, multiple carriers of different standards can be deployed at a single site, such as LTE and NR carriers. Figure 7 The diagram illustrates the spectrum allocation information for the operator's B3 and N28 bands, which allows for the deployment of a 20MHz LTE carrier in the B3 band and a 30MHz NR carrier in the N28 band on base stations.

[0138] Step 503, capacity planning for each carrier network.

[0139] For example, the allocation of network resources is determined based on the number of operators or private network users carried by different carriers. For instance, for the target frequency band of each carrier, the capacity ratio of the network capacity of the carried communication network is determined based on the historical number of users and / or the planned number of users in the coverage area of ​​the base station corresponding to the carried communication network; the target frequency band is divided based on the capacity ratio to obtain the radio resource block configuration information of the carried communication network.

[0140] Step 504, TAC planning.

[0141] For example, TACs can be configured on a carrier-by-carrier basis. For instance, if one carrier broadcasts the PLMNs of operators A and B, then operators A and B negotiate a common TAC. If another carrier broadcasts the PLMNs of operators C and D, then operators C and D can jointly negotiate a single TAC. If a private cellular network shares a carrier with a public network operator, then the operator's TAC is reused; if the private network uses a separate carrier, then any non-conflicting TAC can be planned.

[0142] Step 505, Network Deployment.

[0143] In multi-carrier scenarios, co-location deployment can be implemented based on hardware capabilities. For example, the BBU can create multiple carriers, and RF and antenna feeder equipment can support multi-band carrier deployment. Multi-carrier deployment can provide better terminal compatibility and greater network capacity. For example, operators A and B can share a carrier, operators C and D can share a carrier, and private networks can use a single carrier.

[0144] Based on the information determined in steps 501-504 above, different carrier frequency bands, capacities, and TAC plans can be deployed. Different carrier parameters are configured according to each operator's situation, and access to the corresponding operator or private network core network is determined through VLAN allocation. The planned PLMNID list will be broadcast in each cell's system messages, and the terminal will select different network access based on its own network.

[0145] Optionally, for public cellular networks, core network elements, MEC, and service platforms can be deployed at the drone's base station according to business needs; for private cellular networks, the core network (which may include application platforms) can be deployed in an integrated manner with the base station to reduce backhaul latency and bandwidth requirements, while improving network deployment flexibility.

[0146] It is understandable that the emergency communication network deployment method in this application embodiment, by using MOCN or RANSHARE technology to achieve multi-carrier network co-location, reduces the requirements of the UAV's all-network-compatible base station on the UAV flight platform, ensures continuous and consistent ground signal coverage, and reduces emergency communication costs. Furthermore, in achieving multi-carrier network deployment in emergency scenarios, it solves problems not previously encountered in ground network sharing, such as network equipment size and weight, power consumption, and limited backhaul links. Moreover, by co-locating public and private cellular networks, the UAV base station can simultaneously provide public and private network coverage, meeting the public network communication needs of disaster victims and the QoS-guaranteed private network communication needs of rescue personnel. It also supports the deployment of the private network core network to UAVs, mitigating the crowding out of backhaul links by private network users and the impact of backhaul link fluctuations on private network services, further improving the UAV base station network capacity and reliability. Additionally, the on-demand allocation of wireless resources across multiple communication networks based on capacity requirements can effectively ensure communication reliability in emergency rescue scenarios, thereby improving the efficiency of emergency rescue.

[0147] Exemplary, this application also provides a communication system, including: a drone, on which a base station deployed by the method described in the embodiments of this application is mounted. It is understood that, as Figure 2 As shown, the base station connects to a satellite ground station via a satellite backhaul link and to a ground wireless backhaul node via a dedicated wireless loop link. Both the satellite ground station and the ground wireless backhaul node are connected to a ground-based switch, which in turn connects to different operator core networks (such as...) through a transmission network. Figure 2 The core networks of operators A through D and the private network core networks are shown.

[0148] To implement the methods of the embodiments of this application, an electronic device is also provided. This electronic device can be a platform device for configuring a base station. Figure 8 The diagram shows only an exemplary structure of the electronic device, not the entire structure; implementation is possible as needed. Figure 8 The structure shown may be part or all of the structure.

[0149] like Figure 8 As shown, the electronic device 800 provided in this application embodiment includes: at least one processor 801, a memory 802, a user interface 803, and at least one network interface 804. The various components in the electronic device 800 are coupled together via a bus system 805. It can be understood that the bus system 805 is used to implement communication between these components. In addition to a data bus, the bus system 805 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in... Figure 8 The general labeled all buses as Bus System 805.

[0150] The user interface 803 may include a monitor, keyboard, mouse, trackball, click wheel, buttons, touchpad, or touch screen.

[0151] The memory 802 in this embodiment is used to store various types of data to support the operation of the electronic device. Examples of such data include any computer program used to operate on the electronic device.

[0152] The emergency communication network deployment method disclosed in this application can be applied to or implemented by the processor 801. The processor 801 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the emergency communication network deployment method can be completed by the integrated logic circuits in the hardware of the processor 801 or by instructions in software form. The processor 801 can be a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The processor 801 can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the method disclosed in the embodiments of this application can be directly manifested as execution by a hardware decoding processor, or execution by a combination of hardware and software modules in the decoding processor. The software modules can be located in a storage medium, specifically memory 802. The processor 801 reads information from memory 802 and, in conjunction with its hardware, completes the steps of the emergency communication network deployment method provided in the embodiments of this application.

[0153] In an exemplary embodiment, the electronic device may be implemented by one or more application-specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers (MCUs), microprocessors, or other electronic components to perform the aforementioned method.

[0154] It is understood that memory 802 can be volatile memory or non-volatile memory, or both. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), ferromagnetic random access memory (FRAM), flash memory, magnetic surface memory, optical disc, or compact disc read-only memory (CD-ROM); magnetic surface memory can be disk storage or magnetic tape storage. Volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Sync Link Dynamic Random Access Memory (SLDRAM), and Direct Rambus Random Access Memory (DRRAM).The memories described in the embodiments of this application are intended to include, but are not limited to, these and any other suitable types of memories.

[0155] In an exemplary embodiment, this application also provides a computer storage medium, specifically a computer-readable storage medium, such as a memory 802 storing a computer program, which can be executed by a processor 801 of an electronic device to complete the steps described in the method of this application embodiment. The computer-readable storage medium can be a ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disc, or CD-ROM, etc.

[0156] It should be noted that terms such as "first" and "second" are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0157] Furthermore, the technical solutions described in the embodiments of this application can be combined arbitrarily without conflict.

[0158] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for deploying an emergency communication network, characterized in that, include: On the base station mounted on the drone, the access network function of multiple communication networks is deployed based on the co-site deployment method; The base station is connected to a switch based on a satellite backhaul link and / or a wireless backhaul link. The switch is connected to the core network equipment of each of the multiple communication networks, which include the public cellular networks of multiple operators. The access network function for deploying multiple communication networks based on co-site deployment includes: The access network function of multiple communication networks is deployed using a single-carrier co-site deployment method; or, The access network function of multiple communication networks is deployed using a multi-carrier co-site deployment method; The access network function that deploys multiple communication networks using a multi-carrier co-site deployment method includes: The number of carriers is determined based on at least one of the following: the payload capacity of the UAV, the communication capability of the base station, the communication capacity requirement, and the backhaul link bandwidth. Based on the number of carriers, carriers are allocated to the multiple communication networks, and the network standard and target frequency band of each carrier are determined. Network capacity planning is performed on the target frequency band of each carrier to obtain the radio resource block configuration information of the communication network carried by it; Configure the Tracking Area Code (TAC) information for each carrier; For each carrier, based on the TAC information and the radio resource block configuration information of the communication network it carries, the cell parameters of each communication network are configured; The step of performing network capacity planning on the target frequency band of each carrier to obtain the radio resource block configuration information of the communication network includes: For each carrier's target frequency band, based on the historical number of users and / or the planned number of users in the coverage area of ​​the communication network corresponding to the base station, the capacity ratio of the communication network is determined. Based on the capacity ratio, the target frequency band is divided to obtain the wireless resource block configuration information of the communication network it carries.

2. The method according to claim 1, characterized in that, The access network function that deploys multiple communication networks using a single-carrier co-site deployment method includes: Select the network standard based on the terminal types that need to be compatible, and determine the target frequency band shared under the network standard; Network capacity planning is performed on the target frequency band to obtain the radio resource block configuration information of each communication network; Configure the Tracking Area Code (TAC) information shared by the multiple communication networks; Based on the TAC information and the radio resource block configuration information of each of the communication networks, the cell parameters of each of the communication networks are configured.

3. The method according to claim 2, characterized in that, The step of performing network capacity planning on the target frequency band to obtain radio resource block configuration information for each of the communication networks includes: Based on the historical number of users and / or the planned number of users in the coverage area of ​​each communication network corresponding to the base station, the capacity ratio of each communication network is determined. Based on the capacity ratio, the target frequency band is divided to obtain the radio resource block configuration information of each communication network.

4. The method according to claim 1, characterized in that, The plurality of communication networks further includes: a private cellular network, and the method further includes: The core network functions of the cellular private network are deployed on the base station.

5. A communication system, characterized in that, include: A drone, wherein the drone is equipped with a base station deployed by the method as described in any one of claims 1 to 4.

6. An electronic device, characterized in that, include: A processor and memory for storing computer programs that can run on the processor, wherein, The processor, when running a computer program, performs the steps of the method according to any one of claims 1 to 4.

7. A computer storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 4.

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