A high-throughput satellite bandwidth adaptive allocation method

Abstract

The present invention proposes a high-throughput satellite bandwidth adaptive allocation method, which can adaptively allocate bandwidth to users in different scenarios, while increasing user experience and reducing the number of potential frequency band switching times of users. It includes: dividing the system bandwidth into N sub-bands; setting an access threshold value according to the maximum number of access users in each sub-band, and judging whether the number of access users in the sub-band reaches the access threshold value, if it reaches it, it is defined as a bandwidth resource shortage scenario, otherwise it is defined as a bandwidth resource sufficient scenario; when it is a bandwidth resource shortage scenario, when a new user accesses, a sub-band with a small bandwidth is preferentially selected for access, at which time all sub-bands have reached the access user number threshold value; when it is a bandwidth resource sufficient scenario, when a new user accesses, a sub-band with a large bandwidth is preferentially selected for access, and at the same time, the master station counts the amount of service data of the accessed user in real time.

Description

Technical Field

[0001] The invention belongs to the technical field of high-throughput satellite communications and relates to a high-throughput satellite bandwidth adaptive allocation method. Background Art

[0002] With the rapid development of computer technology and communication technology, the allocation of network resources has gradually attracted people's attention. Network bandwidth allocation is to allocate appropriate bandwidth to each type of user and each service flow in the network, so that it can meet the requirements of optimal allocation of network bandwidth while ensuring the transmission of user services, and maximize the network utility. More and more users are accessing the network, the network is becoming more and more complex, and the services are becoming more and more complex. How to reasonably and effectively allocate network resources, realize user-centric and service-oriented resource allocation, and meet user needs to the greatest extent is the main research issue at present.

[0003] Existing bandwidth allocation methods are based on user needs, without considering whether the current system bandwidth is sufficient or tight. In this way, when the system bandwidth resources are sufficient, they are still allocated on demand. When the user's business data volume increases in the later stage, bandwidth resources need to be allocated again, and users need to perform frequency band switching operations. For example:

[0004] The patent with publication number CN102791032A discloses a network bandwidth allocation method, which obtains the priority of the application that is running on the terminal and occupies network resources; obtains the currently available network bandwidth of the terminal; and allocates the currently available network bandwidth to the application according to the network bandwidth allocation strategy of the terminal and the priority of the application. Summary of the invention

[0005] The present invention proposes a high-throughput satellite bandwidth adaptive allocation method, which can adaptively allocate bandwidth to users in different scenarios, while increasing user experience and reducing the number of potential frequency band switching times of users.

[0006] To achieve the above object, the technical solution of the present invention is as follows:

[0007] A high-throughput satellite bandwidth adaptive allocation method, comprising:

[0008] Divide the system bandwidth into N sub-bands;

[0009] An access threshold is set according to the maximum number of access users of each sub-band, and it is determined whether the number of access users of the sub-band reaches the access threshold. If so, it is defined as a bandwidth resource shortage scenario; otherwise, it is defined as a bandwidth resource sufficient scenario;

[0010] When bandwidth resources are limited and new users access the network, they are given priority to access sub-bands with smaller bandwidths. At this time, the number of users accessing all sub-bands has reached the threshold.

[0011] When bandwidth resources are sufficient, when a new user accesses, the sub-band with large bandwidth is preferentially selected for access. At the same time, the master station counts the service data volume of the accessing user in real time.

[0012] Beneficial effects of the present invention:

[0013] The present invention divides the system bandwidth into multiple sub-bands of different bandwidth sizes. When the system bandwidth resources are sufficient, large bandwidth resources are allocated first. When the amount of user business data increases in the later stage, there is no need to allocate them again. When the system bandwidth resources are tight, small bandwidth resources are allocated first, which can increase the user experience while reducing the number of potential frequency band switching times of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a flow chart of the high-throughput satellite bandwidth adaptive allocation method of the present invention. DETAILED DESCRIPTION

[0015] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0016] like Figure 1 As shown, a high-throughput satellite bandwidth adaptive allocation method of this specific implementation method specifically includes:

[0017] Step 1: divide the system bandwidth into N sub-bands; wherein the sub-band indexes are 0, ..., N-1, and the sub-band bandwidths are M, 2*M, ..., N*M, respectively;

[0018] Step 2: setting an access threshold value according to the maximum number of access users of each sub-band, and judging whether the number of access users of the sub-band reaches the access threshold value; if so, it is defined as a bandwidth resource shortage scenario, and the process goes to step 3; otherwise, it is defined as a bandwidth resource sufficient scenario, and the process goes to step 4;

[0019] In a specific implementation, the maximum number of accessible users U may be set to be the sum of the number of accessible users U1 and the number of reserved users U2, that is, U=U1+U2.

[0020] In this embodiment, the access threshold is set to U1 / U, wherein the sub-band with index 0 does not need to set a threshold.

[0021] Step 3: When bandwidth resources are scarce and new users access the network, sub-bands with small bandwidth are preferentially selected for access. At this time, the number of access users in all sub-bands reaches the threshold value.

[0022] Step 4: When bandwidth resources are sufficient and a new user accesses, the sub-band with large bandwidth is preferentially selected for access, and the master station counts the service data volume of the accessing user in real time;

[0023] In this embodiment, when the master station counts the service data volume of access users in real time, if the number of access users of a certain sub-band reaches a threshold value, then:

[0024] a. When a new user accesses, the user is denied access to the original sub-band and is asked to choose the sub-band for access;

[0025] b. When the user frequency band is switched in, access is allowed in this sub-band. At the same time, users with small business data volume in this sub-band are selected and switched to the secondary band.

[0026] For example: User A originally worked on sub-band 1, and user B originally worked on sub-band N-1. When the service demand of user A increases and the bandwidth corresponding to sub-band N-1 needs to be allocated, user A is switched to sub-band N-1. Statistics show that the service demand of user B has always been very small (less than the bandwidth corresponding to band N-1), so user B is switched to sub-band 1.

[0027] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-throughput satellite bandwidth adaptive allocation method, characterized in that: include: Divide the system bandwidth into N sub-bands; An access threshold is set according to the maximum number of access users of each sub-band, and it is determined whether the number of access users of the sub-band reaches the access threshold. If so, it is defined as a bandwidth resource shortage scenario; otherwise, it is defined as a bandwidth resource sufficient scenario; When bandwidth resources are limited and new users access the network, they are given priority to access sub-bands with smaller bandwidths. At this time, all sub-bands have reached the access threshold. When bandwidth resources are sufficient, when a new user accesses, the sub-band with large bandwidth is preferentially selected for access. At the same time, the master station counts the service data volume of the accessing user in real time.

2. A high-throughput satellite bandwidth adaptive allocation method as claimed in claim 1, characterized in that: The maximum number of accessible users U is set to the sum of the number of accessible users U1 and the number of reserved users U2, that is, U=U1+U2.

3. A high-throughput satellite bandwidth adaptive allocation method as claimed in claim 1 or 2, characterized in that: When the master station counts the service data volume of access users in real time, if the number of access users of a certain sub-band reaches a threshold value, then: a. When a new user accesses, the user is denied access to the original sub-band and is asked to choose the sub-band for access; b. When the user frequency band is switched in, access is allowed in this sub-band. At the same time, users with small business data volume in this sub-band are selected and switched to the secondary band.

4. A high-throughput satellite bandwidth adaptive allocation method as claimed in claim 1 or 2, characterized in that: The sub-band indexes are 0, ..., N-1 in sequence, and the sub-band bandwidths are M, 2*M, ..., N*M in sequence.

5. A high-throughput satellite bandwidth adaptive allocation method as claimed in claim 1 or 2, characterized in that: The access threshold is set to U1 / U, wherein no threshold is set for the sub-band with index 0.

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