A packet service bandwidth guarantee method applicable to satellite mobile communication systems

Abstract

The present invention discloses a packet service bandwidth assurance method applicable to a satellite mobile communication system, comprising a satellite terminal, a service deployment system, a gateway core network, and a gateway station GSC, creating two service types: shared and exclusive. The present invention has the beneficial effect of designing an overall packet service bandwidth assurance strategy by dividing resource usage in the satellite mobile communication system into exclusive and shared methods. This strategy addresses the challenges of low concurrent packet service users and limited system capacity under limited satellite resources, enhances the system's support for packet data users, improves the system's concurrent data service user capacity, ensures successful access and service usage for more satellite users, and improves system flexibility.

Description

Technical Field

[0001] The present invention relates to a packet service bandwidth guarantee method, in particular to a packet service bandwidth guarantee method applicable to a satellite mobile communication system, and belongs to the technical field of satellite communications. Background Art

[0002] Satellite mobile communication systems can provide users with large-scale, long-distance, flexible voice, text message and packet data services through satellite relay forwarding, and have great advantages in comprehensive coverage, emergency communications and universal services.

[0003] For existing published patents

[0004] Patent number: CN103701722A is a network bandwidth allocation method. The technical problem it aims to solve is that related technologies can only distinguish traffic based on information such as IP and port and make simple QoS strategies. In such an environment, this traditional bandwidth management method will be seriously ineffective and cannot achieve the purpose of rationally planning bandwidth resources. The use of static bandwidth allocation will either cause bandwidth waste or the bandwidth of critical applications cannot be guaranteed.

[0005] Patent number: CN110727674A is a performance optimization method for a power grid GIS cloud platform. The technical problem it aims to solve is how to achieve service and resource isolation enjoyed by clients.

[0006] In satellite mobile communication systems, wireless resources are neither exclusive nor shared. However, different packet data services have different guaranteed rate requirements, resulting in different resource allocation methods. Packet data services can allocate resources in two ways: exclusive and shared.

[0007] Whether it is exclusive or shared depends mainly on the rate guarantee requirements of the packet data service. In system design, exclusive services allocate wireless resources of corresponding bandwidth to users separately. Before the service is released, the resources are limited to the user who initiated the application, which can provide a guaranteed rate for the user. Shared services do not allocate dedicated wireless resources to a specific user. That is, the wireless resources carrying shared services are allowed to be used by multiple terminal users. The maximum number of users that can be configured to access the wireless resource is the maximum number of users configured in the data table. As long as the number of users connected to the current wireless resource is less than the maximum number of users, newly applied shared services will be allowed to access the wireless resource. Shared services do not guarantee the service rate of users. As the number of connected users increases, the air interface rate of the shared services carried by the same wireless resource will be shared. That is, the more users connected, the lower the rate shared by a single user.

[0008] Existing satellite mobile communication systems generally utilize a combination of space-, frequency-, and time-division multiplexing technologies, enabling access and interaction with terminals through large-aperture antennas and limited transponder output power. Due to the scarcity of frequency resources and the limitations of satellite total power, the system's user capacity and number of concurrent services are limited, particularly for power-intensive packet services. Improving resource utilization, network transmission capacity, and security is the primary challenge addressed by this invention. Summary of the Invention

[0009] The purpose of the present invention is to provide a packet service bandwidth guarantee method suitable for a satellite mobile communication system in order to solve the problem. By dividing the resource occupancy in the satellite mobile communication system into exclusive and shared methods, an overall packet service bandwidth guarantee strategy is designed to solve the difficult problems of small concurrency of packet service users and limited system capacity under the condition of limited satellite resources, enhance the system's support capability for packet data users, improve the resource utilization rate of data services, ensure the successful access and service use of more satellite users, and improve the flexibility of the system.

[0010] The present invention achieves the above-mentioned purpose through the following technical solutions: A method for ensuring bandwidth of packet services in a satellite mobile communication system, comprising the following steps:

[0011] Step 1: When a satellite terminal user activates a packet data service, he or she first sets the user's QoS information through the service activation system, marking it as QoS1 information.

[0012] Step 2: The service deployment system sends the user QoS1 information to the core network, and the core network stores the QoS1 information in the HLR;

[0013] Step 3: Before the satellite terminal user initiates a packet service application, he configures the QoS information of the packet data service applied for locally through the interface, marking it as QoS2 information;

[0014] Step 4: When the core network receives the user's packet service connection request, it compares the QoS2 of the packet data service initiated by the user through the air interface with the QoS1 of the service activated by the user through the service activation system;

[0015] Step 5: After exclusive shared resource allocation is completed, the terminal is activated and obtains the IP allocated by the network side, and then performs packet domain services;

[0016] Step 6: When the service ends, a call record will be generated on the core network, including information such as terminal type, packet data type, packet data rate, service data flow, service data duration, etc., and reported to the billing system;

[0017] Step 7: The billing system obtains the core network call bill, performs corresponding billing, and completes the packet bandwidth guarantee business process.

[0018] As a further solution of the present invention: in the step three, the service type in Qos2 is exclusive, and it is determined whether the exclusive service is activated in the Qos1 activated by the user through the service activation system. If it is activated, step two is executed; otherwise, access is denied and a prompt "The user's application service type does not match" is prompted.

[0019] As a further solution of the present invention: for the Qos2 information sent to the core network in step 2, if the maximum rate in Qos2 is less than or equal to the maximum rate in Qos1, the core network makes a judgment and sends the user's request to the GSC. The GSC determines whether the exclusive bandwidth resources applied for by the user this time exist in the system resource pool. If so, the corresponding resources are allocated to the user, the business process continues to be completed, and step 5 is executed. Otherwise, the user access is denied, and the user is prompted that the current network cannot allocate network resources. If the maximum rate in Qos2 is greater than the maximum rate in Qos1, the core network fails to make a judgment and denies the user's access request, and feedback "the user has not activated the requested bandwidth" is given.

[0020] As a further solution of the present invention: in the step three, the service type in Qos2 is shared, and the type of packet data service activated by the user through the service activation system is determined: if Qos1 activates shared service or exclusive service, execute step four; if exclusive and shared services are not activated in Qos1, the user access is denied and a prompt "The service applied for by the user is not activated" is displayed.

[0021] As a further solution of the present invention: for the Qos2 information sent to the core network in step 4, the core network determines whether the service rate in Qos2 is less than or equal to the service rate in Qos1. If so, the user request and application rate are forwarded to the GSC. The GSC determines whether the shared bandwidth resources applied for by the user this time exist in the system resource pool. If so, the corresponding resources are allocated to the user and step 5 is executed; otherwise, the user access is denied and a prompt "The user has not activated the requested bandwidth" is displayed.

[0022] As a further solution of the present invention: in step 1, the QoS1 information includes whether the requested service type is shared or exclusive, and the packet data rate under the corresponding service type;

[0023] As a further solution of the present invention: in step 3, the Qos2 information includes whether the applied service type is shared or exclusive, and the packet data rate under the corresponding service type.

[0024] The beneficial effects of the present invention are as follows: the packet service bandwidth guarantee method creates two service types: shared and exclusive, which can improve the user concurrency capability of the system data service, ensure the successful access and service use of more satellite users, and improve the flexibility of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the service process of packet bandwidth guarantee in the present invention. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example 1

[0028] See also Figure 1 A method for ensuring bandwidth of packet services in a satellite mobile communication system comprises the following steps:

[0029] Step 1: When a satellite terminal user activates a packet data service, he or she first sets the user's QoS information through the service activation system, marking it as QoS1 information.

[0030] Step 2: The service deployment system sends the user QoS1 information to the core network, and the core network stores the QoS1 information in the HLR;

[0031] Step 3: Before the satellite terminal user initiates a packet service application, he configures the QoS information of the packet data service applied for locally through the interface, marking it as QoS2 information;

[0032] Step 4: When the core network receives the user's packet service connection request, it compares the QoS2 of the packet data service initiated by the user through the air interface with the QoS1 of the service activated by the user through the service activation system;

[0033] Step 5: After exclusive shared resource allocation is completed, the terminal is activated and obtains the IP allocated by the network side, and then performs packet domain services;

[0034] Step 6: When the service ends, a call record will be generated on the core network, including information such as terminal type, packet data type, packet data rate, service data flow, service data duration, etc., and reported to the billing system;

[0035] Step 7: The billing system obtains the core network call bill, performs corresponding billing, and completes the packet bandwidth guarantee business process.

[0036] In the embodiment of the present invention, in step three, the service type in Qos2 is exclusive, and it is determined whether the exclusive service is activated in Qos1 activated by the user through the service activation system. If activated, step two is executed; otherwise, access is denied and a prompt "The user's application service type does not match" is displayed.

[0037] In an embodiment of the present invention, for the Qos2 information sent to the core network in step 2, if the maximum rate in Qos2 is less than or equal to the maximum rate in Qos1, the core network makes a judgment and sends the user's request to the GSC. The GSC determines whether there is an exclusive bandwidth resource applied for by the user in the system resource pool. If so, the corresponding resource is allocated to the user, the business process continues to be completed, and step 5 is executed. Otherwise, the user access is denied, and the user is prompted that the current network cannot allocate network resources. If the maximum rate in Qos2 is greater than the maximum rate in Qos1, the core network fails to make a judgment, rejects the user's access request, and feedback "the user has not activated the requested bandwidth" is given.

[0038] In the embodiment of the present invention, in step 1, the QoS1 information includes whether the applied service type is shared or exclusive, and the packet data rate under the corresponding service type.

[0039] In the embodiment of the present invention, in step 3, the QoS2 information includes whether the requested service type is shared or exclusive, and the packet data rate under the corresponding service type.

[0040] Example 2

[0041] See also Figure 1 A method for ensuring bandwidth of packet services in a satellite mobile communication system comprises the following steps:

[0042] Step 1: When a satellite terminal user activates a packet data service, he or she first sets the user's QoS information through the service activation system, marking it as QoS1 information.

[0043] Step 2: The service deployment system sends the user QoS1 information to the core network, and the core network stores the QoS1 information in the HLR;

[0044] Step 3: Before the satellite terminal user initiates a packet service application, he configures the QoS information of the packet data service applied for locally through the interface, marking it as QoS2 information;

[0045] Step 4: When the core network receives the user's packet service connection request, it compares the QoS2 of the packet data service initiated by the user through the air interface with the QoS1 of the service activated by the user through the service activation system;

[0046] Step 5: After exclusive shared resource allocation is completed, the terminal is activated and obtains the IP allocated by the network side, and then performs packet domain services;

[0047] Step 6: When the service ends, a call record will be generated on the core network, including information such as terminal type, packet data type, packet data rate, service data flow, service data duration, etc., and reported to the billing system;

[0048] Step 7: The billing system obtains the core network call bill, performs corresponding billing, and completes the packet bandwidth guarantee business process.

[0049] In the embodiment of the present invention, in step three, the service type in Qos2 is shared, and the type of packet data service activated by the user through the service activation system is determined: if Qos1 activates a shared service or an exclusive service, step four is executed; if exclusive and shared services are not activated in Qos1, the user access is denied, and a prompt "The service requested by the user is not activated" is displayed.

[0050] In this embodiment of the present invention, for the Qos2 information sent to the core network in step 4, the core network determines whether the service rate in Qos2 is less than or equal to the service rate in Qos1. If so, the user request and application rate are forwarded to the GSC. The GSC determines whether the shared bandwidth resources applied for by the user exist in the system resource pool. If so, the corresponding resources are allocated to the user and step 5 is executed; otherwise, the user access is denied and a prompt "The user has not activated the requested bandwidth" is displayed.

[0051] In the embodiment of the present invention, in step 1, the QoS1 information includes whether the applied service type is shared or exclusive, and the packet data rate under the corresponding service type.

[0052] In the embodiment of the present invention, in step 3, the QoS2 information includes whether the requested service type is shared or exclusive, and the packet data rate under the corresponding service type.

[0053] Example 3

[0054] See also Figure 1 A packet data service bandwidth guarantee method for a satellite mobile communication system is described. Taking the Tiantong-1 satellite mobile communication system as an example, this system is currently in commercial operation. With the launch of Tiantong-1 02 and 03 satellites, it has achieved overseas coverage. However, due to limited system bandwidth, the number of concurrent packet data users it can support is relatively low. Application of this invention can significantly improve the packet data service support capability for satellite terminals. The specific modifications are as follows:

[0055] 1) Satellite Terminals: For satellite terminals, a human-machine interface needs to be developed to support users in entering service types and rates. These services should also be transmitted to the gateway over the air interface during packet data service flows.

[0056] 2) Service provisioning system: The service provisioning system needs to develop shared and exclusive service provisioning interfaces to support the provisioning of corresponding products;

[0057] 3) Gateway core network: The existing network architecture and equipment composition remain unchanged, but the QoS activated by users and the QoS applied for by services need to be reviewed according to the policy;

[0058] 4) Gateway Station (GSC): This station must match resources between dedicated and shared services, and achieve matching between logical resources and wireless physical resources.

[0059] Working Principle: By dividing the resource occupation in the satellite mobile communication system into two methods: exclusive and shared, an overall packet service bandwidth guarantee strategy is designed to solve the problems of small concurrent packet service users and limited system capacity under the condition of limited satellite resources, and enhance the system's support capabilities for packet data users.

[0060] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0061] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A method for ensuring bandwidth of packet services in a satellite mobile communication system, characterized in that: The following steps are involved: Step 1: When a satellite terminal user activates a packet data service, he or she sets the user's QoS information through the service activation system, which is marked as QoS1 information. The QoS1 information includes whether the service type applied for is shared or exclusive, and the packet data rate under the corresponding service type. Step 2: Before initiating a packet service application, the satellite terminal user configures the QoS information of the packet data service applied for locally through the interface, marked as QoS2 information; wherein, the QoS2 information includes whether the applied service type is shared or exclusive, and the packet data rate under the corresponding service type; 1) If the service type in the QoS2 information is exclusive, determine whether the QoS1 information set by the user through the service opening system includes the requested service type as exclusive. If it does, proceed to step 3. Otherwise, deny access and prompt "User requested service type does not match"; 2) If the service type in the QoS2 information is shared, determine whether the QoS1 information set by the user through the service provisioning system includes whether the requested service type is shared or exclusive. If it does, proceed to step 4. If it does not, deny the user access and prompt "User requested service not activated"; Step 3: The service provisioning system sends the user's QoS1 information to the core network, and the core network stores the QoS1 information in the HLR; Step 4: When the core network receives the user's packet service connection request, it checks and compares the QoS2 information of the packet data service initiated by the user through the air interface and the QoS1 information of the service activated by the user through the service activation system; For the QoS1 information sent to the core network, if the maximum rate in the QoS2 information is less than or equal to the maximum rate in the QoS1 information, the core network passes the judgment and sends the user's request to the GSC. The GSC determines whether the exclusive bandwidth resources requested by the user exist in the system resource pool. If so, the corresponding resources are allocated to the user and the service process continues to complete step 5. Otherwise, the user access is denied and the user is prompted that the current network cannot allocate network resources. If the maximum rate in the QoS2 information is greater than the maximum rate in the QoS1 information, the core network fails the judgment and rejects the user's access request, feedbacking "the user has not activated the requested bandwidth"; The core network determines whether the service rate in the Qos2 information is less than or equal to the service rate in the Qos1 information. If so, it forwards the user request and the requested rate to the GSC. The GSC determines whether the shared bandwidth resources requested by the user exist in the system resource pool. If so, it allocates the corresponding resources to the user and executes step 5. Otherwise, the user is denied access and the prompt "The user has not activated the requested bandwidth" is displayed. Step 5: After exclusive shared resource allocation is completed, the terminal is activated and obtains the IP allocated by the network side, and then performs packet domain services; Step 6: When the service ends, a call record will be generated on the core network, including the terminal type, packet data type, packet data rate, service data flow, and service data duration, and reported to the billing system; Step 7: The billing system obtains the core network call bill, performs corresponding billing, and completes the packet bandwidth guarantee business process.

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