WO2015024158A1

WO2015024158A1 - Access control method and apparatus

Info

Publication number: WO2015024158A1
Application number: PCT/CN2013/081750
Authority: WO
Inventors: 邹成钢
Original assignee: 华为技术有限公司
Priority date: 2013-08-19
Filing date: 2013-08-19
Publication date: 2015-02-26
Also published as: CN103797841B; CN103797841A

Abstract

Disclosed in the present invention are an access control method and apparatus, aiming at realizing accurate control for to-be-accessed user services and currently-accessed user services so as to improve the utilization rate of network bandwidth. The method comprises: according to a total actual bandwidth occupied by currently-accessed user services of all service types in a port and a congestion threshold, determining, by network equipment, a congestion level of the port, wherein the service types comprise a real-time service type and a non-real-time service type, and the port comprises a logical port or a physical port; according to the total actual bandwidth occupied by the currently-accessed user service of any service type in the port as well as a total bandwidth applied when the user service of this service type is accessed, determining, by the network equipment, a controlled service type; and according to the congestion level of the port, the controlled service type, and the service type of a to-be-accessed user service, performing, by the network equipment, access control on the to-be-accessed user service.

Description

Admission control method and device

The present invention relates to the field of communication technologies, and more particularly to an admission control method and apparatus. Background technique

Internet Protocol (IP) technology, with its simple, flexible and low-cost features, makes wireless network IP has become a trend of telecommunications networks.

IP. Compared with the fixed allocation of the transmission link in Time Division Multiplexing (TDM) mode (time-division exclusive, you can not use it without others), after the IP device and the bearer network device are IP-based, due to IP packet grouping And the characteristics of multiplexing, the transmission link is shared bandwidth and statistical multiplexing, in order to avoid network transmission overload, access control of access services is required. For example, in a wireless communication system, there may be a bottleneck in the air interface radio resource and the transmission link resource of the bearer service. To ensure the quality of service (QoS) experience of the user, it is necessary to conduct resource quasi-standard for all accessed services. Into management. In the prior art, transmission bandwidth access control based on reserved bandwidth is generally used, as follows:

The device uses multi-level admission control, such as logical port level, physical port level, and Internet Protocol (IP) path level. Each level has a corresponding reserved bandwidth. When the user service to be accessed or the current user service is released, the reserved bandwidth is changed at each level. When the reserved bandwidth occupied by each level changes, it needs to be compared with the corresponding bandwidth threshold configured for each level. The admission control scheme based on the reserved bandwidth, that is, the estimation of the transmission bandwidth occupation is completed by the predicted reserved bandwidth, and the reserved bandwidth for the user service can accurately reflect the actual usage of the user service bandwidth. Since the reserved bandwidth of real-time services, for example, Circuit Service (CS), and non-real-time services, such as Packet Switch (PS) services, is difficult to predict, the following problems exist: 1. The transmission bandwidth utilization is low in the reserved bandwidth mode.

2. Inaccurate access control to user services is reflected in the following aspects:

a. There is an under-admission problem, that is, the transmission resource bandwidth actually has sufficient bandwidth. However, the admission control plane considers that the transmission resource bandwidth is exhausted and rejects new service access, resulting in a low success rate of user call access.

b. There is an admission problem, that is, the transmission resource bandwidth is actually exhausted, but the admission control plane believes that the transmission resource bandwidth is sufficient and continuously accesses new services, resulting in increasing network congestion, random loss of all users, and user experience. very bad. Summary of the invention

The embodiment of the present invention provides an admission control method and apparatus, which are used to solve the problem of inaccurate user service access and low bandwidth utilization in the existing admission control method.

In a first aspect, an admission control method is provided, including:

The network device determines the congestion level of the port according to the total actual bandwidth and the congestion threshold of the user service of all service types that the port is currently connected to, and the service type includes a real-time service type and a non-real-time service type. The port includes a logical port or a physical port;

Determining, by the network device, the controlled service type according to the total actual bandwidth occupied by the user service of the service type that the port is currently accessed, and the total bandwidth requested by the service service of the service type;

The network device performs admission control on the user service to be accessed according to the congestion level of the port, the controlled service type, and the service type of the user service to be accessed.

With the first aspect, the first possible implementation manner of the first aspect is provided. In the first possible implementation manner of the first aspect, The total actual bandwidth occupied by user services is:

Obtaining, according to the data traffic scheduled by all the queues of the port, the network device is obtained according to the data traffic received and sent by the user service of all service types currently accessed by the port in a set period. of; The total actual bandwidth occupied by the user service of any service type that the port is currently connected to is:

Obtaining, by the network device, data traffic scheduled according to a priority queue corresponding to any service type that the port is currently accessing; or

The network device is obtained according to data traffic received and sent by each user service of any service type currently accessed by the port in a set period.

In conjunction with the first aspect or the first possible implementation of the first aspect, the second possible implementation of the first aspect is provided, and the second possible implementation manner of the first aspect Determining the controlled service type according to the total actual bandwidth occupied by the user service of the current service type of the port and the total bandwidth requested by the user service access of the service type, including:

If the total actual bandwidth occupied by the user service of the current service type of the port is greater than the total bandwidth requested by the user service of the service type, the controlled service type is determined to be the service type; or

If the total actual bandwidth occupied by the user service of the current service type of the port is less than or equal to the total bandwidth requested by the user service of the service type, it is determined that the controlled service type is different from the service type. Another type of business.

A third possible implementation manner of the first aspect is provided, in combination with the first aspect, the first possible implementation manner of the first aspect, or the second possible implementation manner of the first aspect, In a third possible implementation manner of the first aspect, the congestion level of the port includes light congestion and heavy congestion;

The preset congestion threshold includes a light congestion threshold and a heavy congestion threshold, where the light congestion threshold is less than the heavy congestion threshold;

Determining the congestion level of the port according to the total actual bandwidth and the preset congestion threshold of the user service of all service types that the port is currently connected to, including:

If the total actual bandwidth occupied by the user service of all service types that the port is currently connected to is greater than or equal to the bandwidth determined by the light congestion threshold, and is less than the threshold of the heavy congestion threshold. Bandwidth, determining that the congestion level of the port is light congestion; or

If the total actual bandwidth occupied by the user service of all service types that the port is currently connected to is greater than or equal to the bandwidth determined by the heavy congestion threshold, it is determined that the congestion level of the port is heavy congestion.

With the third possible implementation of the first aspect, a fourth possible implementation manner of the first aspect is provided. In a fourth possible implementation manner of the first aspect, the The congestion level of the port, the type of the controlled service, and the service type of the user service to be accessed, and the admission control of the user service to be accessed, including:

When the congestion level is lightly congested, and the user service to be accessed is a real-time service, if the service type of the controlled user service is a real-time service, according to the user service to be accessed Admit control at the minimum available rate; or,

When the congestion level is lightly congested, and the user service to be accessed is a non-real-time service, if the service type of the controlled user service is a real-time service or a non-real-time service, the connection is performed according to the Admission control is performed at the minimum available rate of incoming user traffic.

With the fourth possible implementation of the first aspect, a fifth possible implementation manner of the first aspect is provided. In a fifth possible implementation manner of the first aspect, the The service type of the incoming user service is circuit business.

The admission control according to the minimum available rate of the user service to be accessed includes: admitting the user service to be accessed by using a half rate coding or a low speed adaptive multiple rate coding (AMR) control.

With the fourth possible implementation of the first aspect, a sixth possible implementation manner of the foregoing first aspect is provided. In a sixth possible implementation manner of the first aspect, The service type of the incoming user service is a packet service.

The admission control according to the minimum available rate of the user service to be accessed includes: performing admission control on the user service to be accessed according to a minimum commitment rate, where the minimum commitment rate is the basic when the service is applied for admission. Guarantee the encoding rate corresponding to the bandwidth.

In conjunction with the third possible implementation of the first aspect, the seventh aspect of the first aspect is provided A possible implementation manner, in a seventh possible implementation manner of the first aspect, the foregoing, according to a congestion level of the port, the controlled service type, and a service type of a user service to be accessed, Performing admission control on the user service to be accessed, including:

When the congestion level is heavy congestion, and the user service to be accessed is a real-time service, if the controlled service type is a real-time service, control the user service to be accessed to preempt the port. a real-time service whose service priority is lower than that of the user service to be accessed; or

When the congestion level is heavy congestion, and the user service to be accessed is a real-time service, if the controlled service type is a non-real-time service, the user service to be accessed is allowed to be coded according to the application. Rate access; or,

When the congestion level is heavy congestion, and the user service to be accessed is a non-real-time service, if the service type of the controlled user service is a real-time service, the user service to be accessed is controlled to be preempted. a real-time service in which the service priority of the currently accessed port is lower than the service priority of the user service to be accessed; or

When the congestion level is heavy congestion, and the user service to be accessed is a non-real-time service, if the service type of the controlled user service is a non-real-time service, the user service to be accessed is controlled. The non-real-time service with the priority of the service that is currently accessed in the port is lower than the service priority of the user service to be accessed.

In combination with the first aspect or any one of the first to the seventh possible implementations of the first aspect, the eighth possible implementation of the first aspect is provided. The eighth possible implementation manner of the first aspect, further includes controlling, according to the congestion level of the port and the controlled service type, the currently accessed user service.

In conjunction with the eighth possible implementation of the first aspect, the ninth possible implementation manner of the first aspect is provided. In the ninth possible implementation manner of the first aspect, the Determining the congestion level of the port and the controlled service type, and controlling the currently accessed user service, including:

When the congestion level is light congestion, and the controlled service is real-time service or non-real-time service During the service, no adjustment is made to the currently accessed real-time services; or

When the congestion level is lightly congested, and the controlled service is a real-time service, no coding adjustment is performed on the currently accessed non-real-time service, or

When the congestion level is light congestion, and the controlled service is a non-real time service, triggering to reduce the coding rate of the currently accessed non-real time service.

With the eighth possible implementation of the first aspect, the tenth possible implementation manner of the first aspect is provided. In the tenth possible implementation manner of the first aspect, the Determining the congestion level of the port and the controlled service type, and controlling the currently accessed user service, including:

When the congestion level is heavy congestion, and the controlled service is a real-time service, the full-rate coding to the half-rate conversion is triggered for the currently accessed real-time service, or the non-real-time service that is currently accessed is simultaneously reduced. Encoding rate to a minimum committed rate; or,

When the congestion level is heavy congestion, and the controlled service is a non-real-time service, the current real-time service that has been accessed is not code-adjusted, and the coding rate of the currently accessed non-real-time service is reduced to the minimum. Commitment rate

The minimum committed rate is a coding rate corresponding to the basic guaranteed bandwidth when the service applies for admission.

The beneficial effects of the embodiments of the present invention are as follows: The total actual bandwidth occupied by the port obtained by the solution in the embodiment of the present invention, and the total actual bandwidth occupied by each user service corresponding to any service type and the application service access of the service type of the service type The bandwidth can be used to accurately reflect the bandwidth usage of the port, and then accurately determine the congestion level and the controlled service type of the port according to the information, and accurately according to the total actual bandwidth, congestion level, and controlled service type of the port. Admission control is performed on the user services to be accessed, which improves the utilization of network bandwidth. In a second aspect, an admission control apparatus is provided, including:

a first processing unit, configured to determine a congestion level of the port according to a total actual bandwidth and a congestion threshold occupied by user services of all service types that the port of the network device currently accesses; a second processing unit, configured to determine, according to the total actual bandwidth occupied by user services of any service type that the port is currently accessed, and the total bandwidth requested by the user service access of the service type, business type;

a first control unit, configured to: according to the congestion level of the port determined by the first processing unit, the controlled service type determined by the second processing unit, and a service type of a user service to be accessed, The user service to be accessed is subjected to admission control.

With the second aspect, the first possible implementation manner of the second aspect is provided. In the first possible implementation manner of the second aspect, The total actual bandwidth occupied by user services is:

Obtained according to data traffic scheduled by all queues of the port; or

Obtaining data traffic received and sent in a set period according to user services of all service types currently accessed by the port;

The total actual bandwidth occupied by the user service of any service type that the port is currently connected to is:

Obtained according to the data traffic scheduled by the priority queue corresponding to any service type that the port is currently connected to; or

According to the data traffic received and sent by each user service of any service type currently accessed by the port in a set period.

In conjunction with the second aspect or the first possible implementation of the second aspect, the second possible implementation of the second aspect is provided, and the second possible implementation manner of the second aspect The second processing unit is specifically configured to:

If the total actual bandwidth occupied by the user service of the current service type of the port is less than or equal to the total bandwidth requested by the user service of the service type, it is determined that the controlled service type is different from the service type. Another type of business. A third possible implementation manner of the second aspect is provided, in combination with the second aspect, the first possible implementation manner of the second aspect, or the second possible implementation manner of the second aspect, In a third possible implementation manner of the second aspect, the congestion level of the port includes light congestion and heavy congestion;

The first processing unit is specifically configured to:

Determining the port if the total actual bandwidth occupied by the user service of all the service types that the port is currently accessing is greater than or equal to the bandwidth determined by the light congestion threshold and smaller than the bandwidth determined by the heavy congestion threshold. Congestion level is mild congestion; or,

With the third possible implementation of the second aspect, a fourth possible implementation manner of the second aspect is provided. In a fourth possible implementation manner of the second aspect, the first The control unit is specifically used to:

When the congestion level determined by the first processing unit is light congestion, and the user service to be accessed is a real-time service, if the second processing unit determines the service of the controlled user service If the type is a real-time service, the access control is performed according to the minimum available rate of the user service to be accessed; or

When the congestion level determined by the first processing unit is light congestion, and the user service to be accessed is a non-real time service, if the second processing unit determines the controlled user service If the service type is a real-time service or a non-real-time service, the access control is performed according to the minimum available rate of the user service to be accessed.

With the fourth possible implementation of the second aspect, a fifth possible implementation manner of the second aspect is provided. In a fifth possible implementation manner of the second aspect, the The service type of the incoming user service is a circuit service, and the first control unit is in accordance with the user to be accessed. Admission control for the minimum available rate of the business, including:

The first control unit performs admission control on the user service to be accessed by using a half rate coding or a low speed adaptive multiple rate coding (AMR).

With the fourth possible implementation of the second aspect, a sixth possible implementation manner of the foregoing second aspect is provided. In a sixth possible implementation manner of the second aspect, The service type of the incoming user service is a packet service, and the first control unit performs admission control according to a minimum available rate of the user service to be accessed, including:

The first control unit performs admission control on the user service to be accessed according to a minimum commitment rate, where the minimum commitment rate is a coding rate corresponding to the basic guaranteed bandwidth when the service applies for admission.

In conjunction with the third possible implementation of the second aspect, the seventh possible implementation manner of the second aspect is provided. In the seventh possible implementation manner of the second aspect, the first The control unit is specifically used to:

When the congestion level determined by the first processing unit is heavy congestion, and the user service to be accessed is a real-time service, if the controlled service type determined by the second processing unit is a real-time service And controlling the user service to be accessed to preempt the real-time service whose service priority in the port is lower than that of the user service to be accessed; or

When the congestion level determined by the first processing unit is heavy congestion, and the user service to be accessed is a real-time service, if the controlled service type determined by the second processing unit is non-real-time The service allows the user service to be accessed to be admitted according to the coding rate of the application; or

When the congestion level determined by the first processing unit is heavy congestion, and the user service to be accessed is a non-real time service, if the second processing unit determines the service of the controlled user service If the type is a real-time service, the user service that is to be accessed is controlled to preempt the real-time service whose service priority in the port is lower than that of the user service to be accessed; or

When the congestion level determined by the first processing unit is heavy congestion, and the user service to be accessed is a non-real time service, if the controlled user service determined by the second processing unit If the service type is a non-real-time service, the user service that is to be accessed is controlled to preempt the non-real-time service whose service priority in the port is lower than that of the user service to be accessed.

In combination with the second aspect or any one of the first to the seventh possible implementation manners of the second aspect, the eighth possible implementation manner of the second aspect is provided. In an eighth possible implementation manner of the second aspect, the admission control apparatus further includes a second control unit, configured to determine, according to the first processing unit, a congestion level of the port and the second processing The controlled service type determined by the unit controls the user service of any one of the currently accessed service types.

In conjunction with the eighth possible implementation of the second aspect, the ninth possible implementation manner of the second aspect is provided. In the ninth possible implementation manner of the second aspect, the second The control unit is specifically used to:

When the congestion level determined by the first processing unit is light congestion, and the controlled service determined by the second processing unit is a real-time service or a non-real-time service, the real-time service that is currently accessed is No coding adjustment; or,

When the congestion level determined by the first processing unit is light congestion, and the controlled service determined by the second processing unit is a real-time service, no coding adjustment is performed on the currently accessed non-real-time service, Or when the congestion level is a slight congestion, and the controlled service is a non-real-time service, triggering to reduce a coding rate of the currently accessed non-real-time service.

With the eighth possible implementation of the second aspect, the tenth possible implementation manner of the second aspect is provided. In the tenth possible implementation manner of the second aspect, the second The control unit is specifically used to:

When the congestion level determined by the first processing unit is heavy congestion, and the controlled service determined by the second processing unit is a real-time service, triggering full rate coding to the currently accessed real-time service to half Rate conversion, or simultaneously reduce the coding rate of the currently accessed non-real-time service to a minimum committed rate; or

When the congestion level determined by the first processing unit is heavy congestion, and the second processing When the controlled service determined by the unit is a non-real-time service, the current real-time service that has been accessed is not code-adjusted, and the coding rate of the currently accessed non-real-time service is reduced to the minimum committed rate; The rate is the coding rate corresponding to the basic guaranteed bandwidth when the service applies for admission. In conjunction with the second aspect, or any one of the first to tenth possible implementation manners of the second aspect, the eleventh possible implementation manner of the second aspect is provided, In an eleventh possible implementation manner of the second aspect, the device is located in a network device.

In conjunction with the eleventh possible implementation of the second aspect, a twelfth possible implementation manner of the second aspect is provided, in a twelfth possible implementation manner of the second aspect, The network device is a base station, or a base station controller, or a radio network controller, or an evolved base station, or a core network.

The beneficial effects of the embodiments of the present invention are as follows: The total actual bandwidth occupied by the port obtained by the solution in the embodiment of the present invention, and the total actual bandwidth occupied by each user service corresponding to any service type and the application service access of the service type of the service type The bandwidth can be used to accurately reflect the bandwidth usage of the port, and then accurately determine the congestion level and the controlled service type of the port according to the information, and accurately according to the total actual bandwidth, congestion level, and controlled service type of the port. Admission control is performed on the user services to be accessed, which improves the utilization of network bandwidth. DRAWINGS

FIG. 1 is a flowchart of an admission control method according to an embodiment of the present invention;

2 is a flowchart of another admission control method according to an embodiment of the present invention;

3 is a schematic diagram of an admission control apparatus according to an embodiment of the present invention;

4 is a schematic diagram of another admission control apparatus according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a functional entity of an admission control apparatus according to an embodiment of the present invention. detailed description

The embodiments of the present invention provide an admission control method and apparatus, which are used to implement accurate service admission control and adjustment of current services, thereby improving network bandwidth utilization. For a better understanding of this DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

It should be understood that the described embodiments are only a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The method and apparatus of the embodiments of the present invention may be applied to various network devices, for example, a base station, a base station controller, a radio network controller, an evolved base station, a core network, and the like.

Referring to FIG. 1, an embodiment of the present invention provides an admission control method, including:

101. The network device determines a congestion level of the port according to a total actual bandwidth occupied by user services of all service types that the port currently accesses and a preset congestion threshold.

It should be noted that the total actual bandwidth may be the bandwidth of the physical layer or the link layer bandwidth.

The user service can be divided into a real-time service and a non-real-time service according to the service type, and the total actual bandwidth occupied by the user service of all the service types that the port currently accesses at least includes the real-time service that the port currently accesses. The total actual bandwidth and the total actual bandwidth occupied by the non-real-time services that the port is currently connected to; the port here may be the logical port of the network device or the physical port of the network device. The logical port is a virtual port on the physical port. The logical port is used to monitor the bottleneck bandwidth and traffic shaping on the end-to-end path to avoid bottleneck bandwidth congestion. Physical port, including Point to Point Protocol (PPP) port, Multilink Point to Point Protocol (MLPPP) port, Ethernet port or link aggregation port; Real-time service can be voice service, video call service Or signaling services, non-real-time services can be data services, interactive services, background services, and so on. Of course, the following can be divided into simple: the real-time service is a Circuit Service (CS) service, and the non-real-time service is a Packet Switch (PS) service. It should be noted that the above is merely an example, and the present invention is not limited thereto.

The reserved bandwidth method based on the multi-level admission control in the prior art is, for example, the actual bandwidth of the port occupied by the user service is different from the reserved bandwidth allocated when the user service is applied for admission. The actual bandwidth occupied by the user service A is 1 Mbps, and the reserved bandwidth allocated when applying for admission is 1.5 Mbps. For example, when the port has multiple user services, the port of the port occupied by multiple user services is currently The total actual bandwidth (total actual bandwidth) occupied by user services of all service types that have been accessed is 5 Mbps, and the total reserved bandwidth is 7 Mbps. If the bottleneck bandwidth of the port is 8 Mbps and the congestion threshold is 85%, It is determined that the port is already congested. In fact, the port also has a bandwidth of 3 Mbps, which can be used for accessing or allocating the user service to be accessed to the current user service, which may result in under-permission, and the access is allowed. On the contrary, it will not be repeated here. Different from the prior art, in this embodiment, the total actual bandwidth can truly reflect the current real bandwidth occupancy of the port.

The total actual bandwidth occupied by the currently accessed user service of the port can be obtained by obtaining the data traffic scheduled by all queues of the port. The method of obtaining the information may be the periodic acquisition, or the user service in the priority queues is actively reported.

The total actual bandwidth occupied by the currently accessed user service of the port can also be obtained based on the statistics of data traffic received and sent by each service type of the port. It should be noted that the description herein is merely illustrative, and the present invention is not limited thereto.

The congestion level and the conditions for judgment can be set according to actual conditions. For example, the congestion level is set to Level 1, Level 2, Level 3, and Level 4. Each level of congestion is set to a congestion threshold. The total actual bandwidth and congestion occupied by the user services of all service types that the port is currently connected to. The threshold is compared to determine that the congestion level is one of the above-mentioned first, second, third, and fourth levels; if the port is not congested, there is no congestion level.

For example, the congestion level of a port includes two levels of light congestion and heavy congestion, and a light congestion threshold and a heavy congestion threshold are preset, and a light congestion threshold is less than or equal to the heavy congestion threshold, then: if the port is currently connected to all If the total actual bandwidth occupied by the user service of the service type is greater than or equal to the bandwidth determined by the light congestion threshold and less than the bandwidth determined by the heavy congestion threshold, it is determined that the congestion level of the port is light congestion;

The total actual bandwidth occupied by user services of all service types that the port is currently connected to is greater than Or equal to the bandwidth determined by the heavy congestion threshold, it is determined that the congestion level of the port is heavy congestion. It should be noted that the congestion threshold may be bandwidth or a percentage of the port bandwidth. For example, the congestion threshold for setting the congestion is 70%, and the congestion threshold for the heavy congestion is 90%. The total actual bandwidth occupied by the user services of all service types that the port is currently accessing accounts for the maximum bandwidth of the port. If the percentage is greater than or equal to 70% and less than 90%, it is determined that the congestion level of the port is lightly congested; if the total actual bandwidth occupied by user services of all service types currently accessed by the port accounts for the maximum of the port If the percentage of the defined bandwidth is greater than or equal to 90%, then the congestion level of the port is determined to be heavily congested. The maximum limited bandwidth is the maximum bandwidth that the port itself can provide.

102. The network device determines the controlled service type according to the total actual bandwidth occupied by the user service of any service type that the port is currently connected to, and the total bandwidth requested when the user service access of the service type is accessed.

The service traffic of the service type of the service type is obtained according to the data traffic scheduled by the priority queue corresponding to each service type in the port. The actual bandwidth occupied by the user service of the service type is obtained according to the data traffic received and sent by the user service of the service type of the service type. The method of obtaining the service may be the periodic acquisition, or may be the active reporting of the user service in the priority queue corresponding to each service type.

Generally, when you identify the service type that causes the port to be congested, you can refer to the total actual bandwidth occupied by one of the service types. Therefore, you can obtain only the total actual bandwidth occupied by one of the service types. Process simplification. For example, the total actual bandwidth occupied by each user service of the real-time service is obtained, or only the total actual bandwidth occupied by each user service of the non-real-time service is obtained.

When a port is congested, for example, when the congestion level of a port is light congestion or heavy congestion, it is necessary to determine the service type of the controlled user service.

For example, if the service type includes the real-time service and the non-real-time service, the network device obtains the total actual bandwidth of the real-time service as an example: if the total real bandwidth occupied by each user service of the acquired real-time service is large The bandwidth applied for the service access of each user in the real-time service determines that the service type of the controlled user service is a real-time service, that is, when the port is congested, the total actual bandwidth occupied by the real-time service needs to be adjusted, otherwise The service type of the controlled user service is non-real-time service. Correspondingly, when the port is congested, the total actual bandwidth occupied by the non-real-time service needs to be adjusted.

For example, the service type includes the real-time service and the non-real-time service, and the total actual bandwidth of the non-real-time service is obtained by the network device as an example: if the total actual bandwidth occupied by the non-real-time service is greater than the bandwidth requested when the non-real-time service is accessed, the The service type of the controlled user service is non-real-time service. Otherwise, the service type that causes the controlled user service is determined to be non-real-time service.

For example, the service type includes the real-time service and the non-real-time service, and the total actual bandwidth of the non-real-time service is obtained by the network device as an example: if the total actual bandwidth occupied by the non-real-time service is less than or equal to the bandwidth requested when the non-real-time service is accessed, Determine the type of business being controlled as real-time business.

It should be noted that the foregoing embodiments for determining the type of service to be controlled are merely illustrative, and the present invention is not limited thereto.

The network device performs the quasi-access user service according to the congestion level determined in step 101 and the service type of the controlled user service determined in step 102 and the service type of the user service to be accessed. Into control.

The admission control of the user service to be accessed may be performed according to the congestion level determined in step 101 and the service type of the controlled user service determined by step 102 and the service type of the user service to be accessed. Variety of ways. For example, when the congestion level is lightly congested, and the user service to be accessed is a real-time service: if the determined service type of the controlled user service is a real-time service, the minimum available service according to the user service to be accessed may be used. The rate is controlled by admission. Taking the service type of the user service to be accessed as an example of the circuit service, the user service to be accessed may be preferentially authenticated by a half-rate coding or a low-speed adaptive multiple rate (AMR). If the service type of the controlled user service is a non-real-time service, the admission control may be performed according to the application rate of the user service to be accessed.

For another example, when the congestion level is light congestion, and the user service to be accessed is the non-real time service: if the determined service type of the controlled user service is real-time service or non-real-time service, Admission control may be performed according to the minimum available rate of the user service to be accessed. For example, the service type of the user service to be accessed is a group service, and the user service to be accessed may be controlled according to a minimum commitment rate, where the minimum commitment rate is when the service is applied for admission. The basic guaranteed bandwidth corresponds to the encoding rate.

For example, when the congestion level is heavy congestion, and the user service to be accessed is a real-time service: if the determined service type of the controlled user service is a real-time service, the user service to be accessed may be authenticated. In the control process, controlling the bandwidth of the real-time service whose service priority of the user service to be accessed is lower than that of the user service to be accessed, and the preemption is successful. If the service access of the user to be accessed is successful, if the preemption fails, the service access of the user to be accessed fails; or if the service type of the controlled user service is determined to be non-real-time service, The application rate of the user service is controlled by the access control, and the priority of the user service to be accessed is higher than the priority of the non-real time service currently accessed in the port.

For example, when the congestion level is heavy congestion, and the user service to be accessed is the non-real time service: if the determined service type of the controlled user service is a real-time service, the user to be accessed may be The service performs the admission control process, and controls the bandwidth of the real-time service whose service priority of the user service to be accessed is lower than that of the user service to be accessed. The user service that is to be accessed is a non-real-time service, and can be admitted according to the minimum available rate. The non-real-time service is used as an example of the PS service, and can be admitted at a minimum commitment rate. The basic guaranteed bandwidth corresponding to the coding rate; or, if it is determined that the service type of the controlled user service is a non-real-time service, the access control may be controlled during the admission control process of the user service to be accessed. The user service preempts the bandwidth of the non-real-time service with the lowest priority of the currently accessed service in the port. If the preemption succeeds, the to-be-accessed Access business success, the failure to seize the service to be accessed user access failure.

A person skilled in the art can understand that the preemption processing of the user service in the foregoing embodiment is consistent with the prior art, and the present invention is not described in detail herein.

The total actual bandwidth occupied by the obtained port by the embodiment of the present invention, and any service class The total actual bandwidth occupied by each user service and the bandwidth requested by the user service of the service type can truly reflect the bandwidth usage of the port, and thus accurately determine the congestion level and the controlled service type of the port. Thereby, accurate control of newly accessed user services is realized, and utilization of network bandwidth is improved.

Optionally, referring to FIG. 2, on the basis of the foregoing step 103, the following optional steps may be further included, where the network device controls the currently accessed user service in the port, as follows:

104: The network device controls the user service of any type of service currently accessed according to the congestion level determined in step 101 and the controlled service type determined in step 102.

For example, when the congestion level is light congestion, and the controlled service is a real-time service or a non-real-time service, no coding adjustment is performed on the currently accessed real-time service; or

When the congestion level is lightly congested, and the controlled service is a real-time service, the current non-real-time service that has been accessed is not code-adjusted, or the congestion level is lightly congested, and the controlled service is When it is a non-real-time service, the triggering reduces the coding rate of the currently accessed non-real-time service.

For another example, when the congestion level is heavy congestion, and the controlled service is a real-time service, the full-rate coding to the half-rate conversion is triggered for the currently accessed real-time service, or the currently accessed non-transmission is simultaneously reduced. The encoding rate of the real-time service to the minimum committed rate; or,

When the congestion level is heavy congestion, and the controlled service is a non-real-time service, the current accessed real-time service is not code-adjusted, and the currently accessed non-real-time service is reduced to the minimum committed rate;

The minimum commitment rate is a coding rate corresponding to the basic guaranteed bandwidth when the service applies for admission. By controlling the currently accessed user services, the phenomenon of excessive access or under-access is avoided. The beneficial effects of the present implementation are as follows: The total actual bandwidth occupied by the port obtained by the solution in the embodiment of the present invention, and the total actual bandwidth occupied by each user service corresponding to any service type and the bandwidth requested by the user service of the service type. The port bandwidth occupation situation can be truly reflected, and the congestion level and the controlled service type of the port are accurately determined according to the information, and the port is accurately processed according to the total actual bandwidth, the congestion level, and the controlled service type of the port. The incoming user service is subject to admission control, which improves the utilization of network bandwidth. Referring to FIG. 2, an embodiment of the present invention provides an admission control apparatus 200, including: a first processing unit 201, configured to use a total actual bandwidth occupied by user services of all service types currently accessed by a network device port, and The congestion threshold is preset to determine the congestion level of the port.

The total actual bandwidth may be the bandwidth of the physical layer or the link layer bandwidth. The user service can be divided into a real-time service and a non-real-time service according to the service type, and the total actual bandwidth occupied by the user service of all the service types that the port currently accesses at least includes the real-time service that the port currently accesses. The total actual bandwidth and the total actual bandwidth occupied by the non-real-time services currently accessed by the port; the ports here include logical ports and physical ports. A logical port is a virtual port on a physical port. The logical port is used to monitor the bottleneck bandwidth and traffic shaping on the end-to-end path to avoid bottleneck bandwidth congestion. The physical port, including the PPP port, the MLPPP port, the Ethernet port, or the link aggregation port; the real-time service may be a voice service, a video call service, or a signaling service, and the non-real-time service may be a data service, an interactive service, a background service, or the like. Of course, the following divisions can be made relatively simple: the real-time service is a CS service, and the non-real-time service is a PS service. It should be noted that the above is merely an example, and the present invention is not limited thereto.

The total actual bandwidth occupied by user services of all service types that are currently accessed by the port can be obtained by the following methods:

The total actual bandwidth occupied by the currently accessed user service of the port is obtained by obtaining the data traffic of all the queues of the port; or, according to the data traffic received and sent by the user service of each service type of the port.

The user can be actively reported in the priority queue or in each service type.

The congestion level and the conditions for judgment can be set according to actual conditions. For example, the congestion level is set to one level, two levels, three levels, and four levels. Each level of congestion is set to a congestion threshold, and the total actual bandwidth occupied by user services of all service types currently accessed by the port is Congestion threshold comparison, thereby determining that the congestion level is one of the above-mentioned first, second, third, and fourth levels; if the port is not congested, then There is a level of congestion.

For example, the congestion level of the port includes two levels of light congestion and heavy congestion, and the light congestion threshold and the heavy congestion threshold are preset, and the light congestion threshold is less than or equal to the heavy congestion threshold. If the total actual bandwidth occupied by the user service of the service type is greater than or equal to the bandwidth determined by the light congestion threshold and less than the bandwidth determined by the heavy congestion threshold, the first processing unit 201 determines that the congestion level of the port is light congestion. ;

If the total actual bandwidth occupied by the user service of the current service type of the port is greater than or equal to the bandwidth determined by the heavy congestion threshold, the first processing unit 201 determines that the congestion level of the port is heavy congestion.

It should be noted that the congestion threshold may be bandwidth or a percentage of the port bandwidth. For example, the congestion threshold for setting a light congestion is 70%, and the congestion threshold for a heavy congestion is 90%. If the current total bandwidth occupied by the user service of the current service type of the port accounts for the maximum limit of the port, If the percentage of the bandwidth is greater than or equal to 70% and less than 90%, the first processing unit 201 determines that the congestion level of the port is light congestion; if the port is currently occupied by the user service of any service type The first processing unit 201 determines that the congestion level of the port is heavily congested, and the percentage of the total actual bandwidth to the maximum limited bandwidth of the port is greater than or equal to 90%. The maximum defined bandwidth is the maximum bandwidth that the port itself can provide.

The second processing unit 202 is configured to determine a controlled service type according to the total actual bandwidth occupied by the user service of the current service type of the network device port and the total bandwidth requested by the user service when the service type is accessed;

The different service types have corresponding priority queues on the ports. Therefore, the total actual bandwidth occupied by the user services of the service type can be obtained according to the data traffic scheduled by the priority queue corresponding to each service type in the port. Or, according to the data traffic received and sent by the user service of the service type of the service type that is currently accessed by the port, the total actual bandwidth occupied by the user service of the service type is obtained. The method of obtaining may be periodic acquisition, or may be active on the user service in the priority queue corresponding to each service type.

Generally, when you identify the service type that causes port congestion, you can refer to only one of them. The total actual bandwidth occupied by the service type may be, for example, only refer to the total actual bandwidth occupied by each user service of the real-time service, or only the total actual bandwidth occupied by each user service of the non-real-time service.

For example, the total actual bandwidth of the real-time service is obtained by the service type including the real-time service and the non-real-time service. For example, if the total actual bandwidth occupied by each user service of the real-time service is greater than the bandwidth applied for each user service of the real-time service, The second processing unit 202 determines that the service type of the controlled user service is a real-time service, that is, when the port is congested, the total actual bandwidth occupied by the real-time service needs to be adjusted, otherwise the second processing unit 202 determines that the second processing unit 202 determines The service type of the controlled user service is non-real-time service. Correspondingly, when the port is congested, the total actual bandwidth occupied by the non-real-time service needs to be adjusted.

For example, the total actual bandwidth of the non-real-time service is obtained by using the real-time service and the non-real-time service as an example: if the total actual bandwidth occupied by the non-real-time service is greater than the bandwidth applied for the non-real-time service access, the second The processing unit 202 may determine that the service type of the controlled user service is a non-real time service, otherwise determine that the service type causing the controlled user service is a non-real time service. It is to be noted that the description herein is merely illustrative, and the present invention is not limited thereto.

The first control unit 203 is configured to: according to the congestion level of the port determined by the first processing unit 201, the controlled service type determined by the second processing unit 202, and the service of the user service to be accessed Type, performing admission control on the user service to be accessed.

The user to be accessed according to the congestion level determined by the first processing unit 201 and the service type of the controlled user service determined by the second processing unit 202 and the service type of the user service to be accessed There are many ways to control the access of a business. For example, when the congestion level determined by the first processing unit 201 is light congestion, and the user service to be accessed is a real-time service: if the second processing unit 202 determines the service of the controlled user service The type is a real-time service, and the first control unit 203 may perform admission control on the user service to be accessed according to a minimum available rate of the user service to be accessed. Taking the service type of the user service to be accessed as an example of circuit service, it is preferred to use half rate coding or low speed adaptive multi-rate coding (daptive). Multiple rate (AMR), the admission control of the user service to be accessed; or, if the service type of the controlled user service determined by the second processing unit 202 is a non-real time service, The application rate of the accessed user service is controlled by admission.

For another example, when the congestion level determined by the first processing unit 201 is light congestion, and the user service to be accessed is the non-real time service: if the second processing unit 202 determines the controlled The service type of the user service is a real-time service or a non-real-time service, and the first control unit 203 may perform admission control on the user service to be accessed according to the minimum available rate of the user service to be accessed. For example, the service type of the user service to be accessed is a group service, and the user service to be accessed may be controlled according to a minimum commitment rate, where the minimum commitment rate is when the service is applied for admission. The basic guaranteed bandwidth corresponds to the encoding rate.

For another example, when the congestion level determined by the first processing unit 201 is heavy congestion, and the user service to be accessed is real-time service:

If the service type of the controlled user service determined by the second processing unit 202 is a real-time service, the first control unit 203 may control the performing the admission control process of the user service to be accessed. The user service to be accessed is the bandwidth of the real-time service whose access priority is lower than that of the user to be accessed. If the preemption is successful, the service access of the user to be accessed is successful, and the preemption fails. If the service type of the user service to be accessed is not the real-time service, the first control unit 203 may wait for the service to be accessed. The application rate of the accessed user service is controlled by the access control, and the priority of the user service to be accessed is higher than the priority of the non-real-time service currently accessed in the port.

For another example, when the congestion level determined by the first processing unit 201 is heavy congestion, and the user service to be accessed is the non-real time service: if the second processing unit 202 determines the controlled user service The service type is a real-time service, and the first control unit 203 may control the service priority of the currently accessed service in the user service preemption port to be accessed during the admission control process of the user service to be accessed. The bandwidth of the real-time service is lower than that of the user to be accessed. Since the user service to be accessed is a non-real-time service, the access can be performed according to the minimum available rate. For example, the non-real-time service is the PS service, and the minimum commitment rate is the coding rate corresponding to the basic guaranteed bandwidth when the service is applied for admission; or, if the second processing unit 202 determines The service type of the controlled user service is a non-real-time service, and the first control unit 203 may control the user service preemption port to be accessed in the process of performing admission control on the user service to be accessed. The bandwidth of the currently accessed service is lower than the bandwidth of the non-real-time service that is lower than the user service to be accessed. If the preemption is successful, the service to be accessed is successfully accessed. If the preemption fails, the user to be accessed is the user to be accessed. Business access failed.

Optionally, referring to FIG. 4, on the basis of the admission control apparatus shown in FIG. 3, the second control unit 204 may be further configured to: according to the determined congestion level and the determined type of the controlled service, User services of any type of service that have been accessed are controlled.

For example, when the congestion level determined by the first processing unit 201 is light congestion, and the controlled service determined by the second processing unit 202 is a real-time service or a non-real-time service, the second control The unit 204 does not perform coding adjustment on the currently accessed real-time service; or

When the congestion level determined by the first processing unit 201 is light congestion, and the controlled service determined by the second processing unit 202 is a real-time service, the second control unit 204 is currently connected. The incoming non-real-time service is not coded, or the congestion level determined by the first processing unit 201 is lightly congested, and the controlled service determined by the second processing unit 202 is a non-real-time service. The second control unit 204 triggers a decrease in the encoding rate of the currently accessed non-real time service.

For another example, when the congestion level determined by the first processing unit 201 is heavy congestion, and the controlled service determined by the second processing unit 202 is a real-time service, the second control unit 204 is for the current The accessed real-time service triggers full-rate encoding to half-rate conversion, or simultaneously reduces the encoding rate of the currently accessed non-real-time service to a minimum committed rate; or

When the congestion level determined by the first processing unit 201 is heavy congestion, and the controlled service determined by the second processing unit 202 is a non-real time service, the second control unit 204 The current real-time service that has been accessed is not code-adjusted, and the currently-accessed non-real-time service is reduced to the minimum committed rate; the minimum committed rate is the coding rate corresponding to the basic guaranteed bandwidth when the service is applied for admission.

In this embodiment, the second control unit 204 accurately controls user services of any type of service currently accessed according to the determined congestion level and the determined type of the controlled service, thereby avoiding admission. Under-acceptance or over-admission in the control process.

The beneficial effects of the present implementation are as follows: The total actual bandwidth occupied by the port obtained by the solution in the embodiment of the present invention, and the total actual bandwidth occupied by each user service corresponding to any service type and the bandwidth requested by the user service of the service type. The first processing unit 201 can accurately determine the congestion level of the port according to the information, and the second processing unit 202 can accurately determine the controlled service type according to the information. The first control unit 203 increases the utilization of the network bandwidth according to the total actual bandwidth of the port obtained above.

Referring to FIG. 5, for the same inventive concept as the admission control method provided by the embodiment of the present invention, an embodiment of the present invention further provides an admission control apparatus 300, which may be disposed at a base station and a base station controller. On the network device, such as a radio network controller, the admission control device 300 includes a memory 301 and a processor 302. The processor 302 is connected to the memory 301. The memory 301 stores a set of program codes, and the memory 301 may include non-easy Loss of memory. Processor 302 can be a CPU, or an ASIC, or one or more integrated circuits configured to implement embodiments of the present invention. The processor 302 is configured to call the program code stored in the memory 301 for execution:

Determining the congestion level of the port according to the total actual bandwidth occupied by the user service of the service type that is currently connected to the port and the preset congestion threshold; and the total actual occupation of the user service according to the current service type of the port. The bandwidth and the total bandwidth requested when the user service of the service type is accessed, and the controlled service type is determined;

And performing admission control on the user service to be accessed according to the congestion level of the port, the controlled service type, and the service type of the user service to be accessed.

Further, the processor 302 is optionally executed on the basis of performing the foregoing processing Processing:

And controlling the currently accessed user service according to the congestion level of the port and the controlled service type.

The device in this embodiment can be used to implement the functions of the steps in the foregoing method embodiments. The implementation principle and the technical effect are similar. For details, refer to related records in the foregoing method embodiments, and details are not described herein again.

Those skilled in the art will appreciate that embodiments of the present application can be provided as a method, system, or computer program product. Thus, the application can be in the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the application can be in the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) in which computer usable program code is embodied.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowcharts and/or block diagrams, and combinations of flow and/or blocks in the flowcharts and/or block diagrams can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in a block or blocks of a flow or a flow and/or a block diagram of a flowchart Step.

Although the preferred embodiment of the present application has been described, those skilled in the art can make additional changes and modifications to the embodiments once they are aware of the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all modifications and

It is apparent that those skilled in the art can make various modifications and variations to the embodiments of the present application without departing from the spirit and scope of the embodiments of the present application. Therefore, it is intended that the present invention cover the modifications and variations of the present invention.

Claims

Rights request

1. An access control method, characterized by including:

The network device determines the congestion level of the port based on the total actual bandwidth occupied by user services of all service types currently accessed by the port and the congestion threshold, where the service type includes a real-time service type and a non-real-time service type, so The ports include logical ports or physical ports;

The network device determines the controlled service type based on the total actual bandwidth occupied by user services of any service type currently accessed by the port and the total bandwidth applied for when user services of this service type are accessed;

The network device performs admission control on the user service to be accessed based on the congestion level of the port, the controlled service type, and the service type of the user service to be accessed.

2. The method according to claim 1, characterized in that the total actual bandwidth occupied by user services of all service types currently accessed by the port is:

The network device obtains it based on the data traffic scheduled by all queues of the port; or, the network device obtains it based on the data traffic received and sent within the set period of user services of all service types currently accessed by the port. of;

The total actual bandwidth occupied by user services of any service type currently connected to the port is:

The network device obtains it based on the data flow scheduled by the priority queue corresponding to any service type currently accessed by the port; or,

The network device obtains the data traffic received and sent within the set period by each user service of any service type currently accessed by the port.

3. The method according to claim 1 or 2, characterized in that, the total actual bandwidth currently occupied by user services of any service type on the port and the application time for user services of this service type are accessed. The total bandwidth determines the controlled service type, including:

If the total actual bandwidth currently occupied by user services of any service type on the port is greater than the total bandwidth applied for when user services of this service type are accessed, then the controlled service type is determined to be the service type; or If the total actual bandwidth currently occupied by user services of any service type on the port is less than or equal to the total bandwidth applied for when user services of this service type are accessed, then the controlled service type is determined to be different from this service type. another type of business.

4. The method according to any one of claims 1 to 3, characterized in that the congestion level of the port includes mild congestion and severe congestion;

The preset congestion threshold includes a mild congestion threshold and a severe congestion threshold, wherein the mild congestion threshold is smaller than the severe congestion threshold;

Determining the congestion level of the port based on the total actual bandwidth occupied by user services of all service types currently accessed by the port and the preset congestion threshold includes:

If the total actual bandwidth occupied by user services of all service types currently accessed by the port is greater than or equal to the bandwidth determined by the mild congestion threshold and less than the bandwidth determined by the severe congestion threshold, then determine that the port 's congestion level is mild congestion; or,

If the total actual bandwidth occupied by user services of all service types currently accessed by the port is greater than or equal to the bandwidth determined by the severe congestion threshold, the congestion level of the port is determined to be severe congestion.

5. The method according to claim 4, characterized in that, according to the congestion level of the port, the controlled service type and the service type of the user service to be accessed, the user service to be accessed is Access control for user services, including:

When the congestion level is mild congestion and the user service to be accessed is a real-time service, if the service type of the controlled user service is a real-time service, then according to the user service to be accessed, minimum available rate for admission control; or,

When the congestion level is mild congestion and the user service to be accessed is a non-real-time service, if the service type of the controlled user service is a real-time service or a non-real-time service, then the to-be-accessed service is Admission control is performed based on the minimum available rate of incoming user services.

6. The method according to claim 5, characterized in that the service type of the user service to be accessed is circuit service,

The admission control based on the minimum available rate of user services to be accessed includes: Admission control is performed on the user service to be accessed using half-rate coding or low-speed Adaptive Multiple Rate coding (AMR, Adaptive Multiple Rate).

7. The method according to claim 5, characterized in that the service type of the user service to be accessed is a packet service,

The admission control based on the minimum available rate of the user service to be accessed includes: performing admission control on the user service to be accessed according to the minimum committed rate, where the minimum committed rate is the basic rate when the service applies for admission. Guarantee the encoding rate corresponding to the bandwidth.

8. The method according to claim 5, characterized in that, according to the congestion level of the port, the controlled service type and the service type of the user service to be accessed, the user service to be accessed is Access control for user services, including:

When the congestion level is severe congestion and the user service to be accessed is a real-time service, if the controlled service type is a real-time service, the user service to be accessed is controlled to seize the port. The currently accessed service has a lower priority than the real-time service of the user service to be accessed; or,

When the congestion level is severe congestion and the user service to be accessed is a real-time service, and if the controlled service type is a non-real-time service, the user service to be accessed is allowed according to the applied coding rate; or,

When the congestion level is severe congestion and the user service to be accessed is a non-real-time service, if the service type of the controlled user service is a real-time service, the preemption of the user service to be accessed is controlled. The real-time service that is currently accessed in the port has a lower priority than the user service to be accessed; or,

When the congestion level is severe congestion and the user service to be accessed is a non-real-time service, if the service type of the controlled user service is a non-real-time service, then the user service to be accessed is controlled. Preempt non-real-time services whose priority is lower than the priority of the currently accessed service in the port than the service priority of the user service to be accessed.

9. The method according to any one of claims 1 to 8, further comprising: performing processing on the currently accessed user services according to the congestion level of the port and the controlled service type. line control.

10. The method according to claim 9, characterized in that, controlling the currently accessed user service according to the congestion level of the port and the controlled service type includes:

When the congestion level is mild congestion and the controlled service is a real-time service or a non-real-time service, no coding adjustment is made for the currently accessed real-time service; or,

When the congestion level is mild congestion and the controlled service is a real-time service, no coding adjustment is made to the currently accessed non-real-time service, or,

When the congestion level is mild congestion and the controlled service is a non-real-time service, a reduction in the coding rate of the currently accessed non-real-time service is triggered.

11. The method according to claim 9, characterized in that, controlling the currently accessed user service according to the congestion level of the port and the controlled service type includes:

When the congestion level is severe congestion and the controlled service is a real-time service, the conversion from full-rate coding to half-rate is triggered for the currently accessed real-time service, or at the same time, the rate of the currently accessed non-real-time service is reduced. Encode rate to the minimum committed rate; or,

When the congestion level is severe congestion and the controlled service is a non-real-time service, no coding adjustment is made to the currently accessed real-time service, and the coding rate of the currently accessed non-real-time service is reduced to the minimum Commitment rate;

Wherein, the minimum committed rate is the coding rate corresponding to the basic guaranteed bandwidth when the service applies for admission.

12. An access control device, characterized by including:

The first processing unit is configured to determine the congestion level of the port based on the total actual bandwidth occupied by user services of all service types currently accessed by the port of the network device and the congestion threshold;

The second processing unit is configured to determine the controlled bandwidth based on the total actual bandwidth occupied by user services of any service type currently accessed by the port and the total bandwidth applied for when user services of this service type are accessed. business type; The first control unit is configured to control the congestion level of the port determined by the first processing unit, the controlled service type determined by the second processing unit, and the service type of the user service to be accessed, The user services to be accessed are subject to admission control.

13. The device according to claim 12, characterized in that the total actual bandwidth occupied by user services of all service types currently accessed by the port is:

Obtained based on the data traffic scheduled by all queues of the port; or,

Obtained based on the data traffic received and sent within the set period by user services of all service types currently accessed by the port;

Obtained according to the data traffic scheduled by the priority queue corresponding to any service type currently accessed by the port; or,

It is obtained based on the data traffic received and sent by each user service of any service type currently connected to the port within the set period.

14. The device according to claim 12 or 13, characterized in that the second processing unit is specifically used for:

If the total actual bandwidth currently occupied by user services of any service type on the port is greater than the total bandwidth applied for when user services of this service type are accessed, then the controlled service type is determined to be the service type; or

If the total actual bandwidth currently occupied by user services of any service type on the port is less than or equal to the total bandwidth applied for when user services of this service type are accessed, then the controlled service type is determined to be different from this service type. another type of business.

15. The device according to any one of claims 12 to 14, characterized in that the congestion level of the port includes mild congestion and severe congestion;

The first processing unit is specifically used for: If the total actual bandwidth occupied by user services of all service types currently accessed by the port is greater than or equal to the bandwidth determined by the mild congestion threshold and less than the bandwidth determined by the severe congestion threshold, then determine that the port 's congestion level is mild congestion; or,

16. The device according to claim 15, characterized in that the first control unit is specifically used for:

When the congestion level determined by the first processing unit is mild congestion and the user service to be accessed is a real-time service, if the controlled user service determined by the second processing unit If the type is real-time service, then admission control is performed according to the minimum available rate of the user service to be accessed; or,

When the congestion level determined by the first processing unit is mild congestion and the user service to be accessed is a non-real-time service, if the controlled user service determined by the second processing unit If the service type is real-time service or non-real-time service, admission control is performed according to the minimum available rate of the user service to be accessed.

17. The device according to claim 16, wherein the service type of the user service to be accessed is circuit service, and the first control unit performs admission according to the minimum available rate of the user service to be accessed. Control, including:

The first control unit performs admission control on the user service to be accessed using half-rate coding or low-speed Adaptive Multiple Rate coding (AMR, Adaptive Multiple Rate).

18. The device according to claim 16, wherein the service type of the user service to be accessed is a packet service, and the first control unit performs admission according to the minimum available rate of the user service to be accessed. Control, including:

The first control unit performs access control on the user service to be accessed according to a minimum committed rate, where the minimum committed rate is the coding rate corresponding to the basic guaranteed bandwidth when the service applies for admission.

19. The device according to claim 15, characterized in that the first control unit specifically Used for:

When the congestion level determined by the first processing unit is severe congestion and the user service to be accessed is a real-time service, if the controlled service type determined by the second processing unit is a real-time service , then control the user service to be accessed to seize the real-time service with a lower priority of the currently accessed service in the port than the user service to be accessed; or,

When the congestion level determined by the first processing unit is severe congestion and the user service to be accessed is a real-time service, if the controlled service type determined by the second processing unit is non-real-time service, the user service to be accessed is allowed to be admitted according to the applied coding rate; or,

When the congestion level determined by the first processing unit is severe congestion and the user service to be accessed is a non-real-time service, if the controlled user service determined by the second processing unit If the type is real-time service, control the user service to be accessed to preempt the real-time service with a lower priority than the currently accessed service in the port than the user service to be accessed; or,

When the congestion level determined by the first processing unit is severe congestion and the user service to be accessed is a non-real-time service, if the controlled user service determined by the second processing unit If the type is non-real-time service, the user service to be accessed is controlled to preempt the non-real-time service with a lower priority than the currently accessed service in the port than the user service to be accessed.

20. The device according to any one of claims 12 to 19, further comprising a second control unit configured to perform the second processing according to the congestion level of the port determined by the first processing unit. The controlled service type determined by the unit controls user services of any currently accessed service type.

21. The device according to claim 20, characterized in that the second control unit is specifically used for:

When the congestion level determined by the first processing unit is mild congestion, and the controlled service determined by the second processing unit is a real-time service or a non-real-time service, the currently accessed real-time service is No coding adjustments will be made to the business; or,

When the congestion level determined by the first processing unit is mild congestion, and the controlled service determined by the second processing unit is a real-time service, no coding adjustment is made to the currently accessed non-real-time service, Or when the congestion level is mild congestion and the controlled service is a non-real-time service, a reduction in the coding rate of the currently accessed non-real-time service is triggered.

22. The device according to claim 20, characterized in that the second control unit is specifically used for:

When the congestion level determined by the first processing unit is severe congestion, and the controlled service determined by the second processing unit is a real-time service, full rate encoding to half rate is triggered for the currently accessed real-time service. rate conversion, or simultaneously reduce the coding rate of the currently accessed non-real-time service to the minimum committed rate; or,

When the congestion level determined by the first processing unit is severe congestion, and the controlled service determined by the second processing unit is a non-real-time service, no coding adjustment is made to the currently accessed real-time service, and The coding rate of the currently accessed non-real-time service is reduced to the minimum committed rate; the minimum committed rate is the coding rate corresponding to the basic guaranteed bandwidth when the service applies for admission.

23. The device according to any one of claims 12 to 22, characterized in that the device is located in a network device.

24. The apparatus according to claim 23, wherein the network device is a base station, or a base station controller, or a wireless network controller, or an evolved base station, or a core network.