CN103888380A - Priority-based link scheduling method and device - Google Patents
Priority-based link scheduling method and device Download PDFInfo
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- CN103888380A CN103888380A CN201310706312.XA CN201310706312A CN103888380A CN 103888380 A CN103888380 A CN 103888380A CN 201310706312 A CN201310706312 A CN 201310706312A CN 103888380 A CN103888380 A CN 103888380A
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Abstract
The invention provides a priority-based link scheduling method and device. A message type of each message is received and confirmed. Whether each message type has a corresponding forwarding rule is judged. Each message type with no forwarding rule is confirmed to be a first message type. The priority of each first message type and the priority of a currently available link are acquired. Messages under each first message type are allocated to the link corresponding to the first message type according to the priority of each first message type, the priority of the currently available link and the preset scheduling strategy so that the messages are forwarded to a core network device via the link. The messages under the message types with different priorities are allocated to the links with the corresponding priorities to forward so that requirements of the messages with different priorities for QoS parameters in the transmission process are ensured to be met.
Description
Technical field
The present invention relates to the communication technology, relate in particular to a kind of link scheduling method and device based on priority.
Background technology
Generally, equipment of the core network can receive the message that great amount of terminals sends, and in order to guarantee the efficiency of transmission of message, can between terminal and core net, build multi-chain circuit transmission mechanism at present, between terminal and equipment of the core network, by multilink mechanism message transfer.
Although adopt multilink mechanism to carry out message transfer, can improve the efficiency of transmission of messages, in the process based on multilink mechanism message transfer, still there will be message block up or transship in terminal and equipment of the core network.When at present occurring blocking up in the process of existing multi-chain circuit transmission message or transship, adopt load balancing principle to dispatch link more, message is assigned on different links and is forwarded.
In practical application, dissimilar message back is toward having different service quality (Quality of Service, be called for short QoS) parameter, while carrying out link scheduling by the principle of load balancing, often make message qos parameter to some types of high requirement there will be the phenomenons such as packet loss or time delay are long.
Summary of the invention
The invention provides a kind of link scheduling method and device based on priority, while carrying out link scheduling to solve the existing principle by load balancing, often make transmission demand qos parameter to the message of some types of high requirement be not being met, occur the problems such as packet loss or propagation delay time are long.
To achieve these goals, the invention provides a kind of link scheduling method based on priority, comprising:
Receive and determine the type of message of each message;
Judge whether each described type of message has corresponding forwarding rule;
Be defined as the first type of message by not thering is the described described type of message that forwards rule;
Obtain the priority of each described type of message and the priority of current available link under described the first type of message;
According to the priority of each described type of message under described the first type of message, the priority of described current available link and default scheduling strategy, message under each described type of message under described the first type of message is assigned on corresponding link, by the link of described correspondence, described message is transmitted to equipment of the core network.
To achieve these goals, the invention provides a kind of link scheduling device based on priority, comprising:
Receiver module, for receiving and determine the type of message of each message;
Judge module, for judging whether each described type of message has corresponding forwarding rule;
Determination module, for being defined as the first type of message by not having the described described type of message that forwards rule;
Acquisition module, for obtaining the priority of each described type of message and the priority of current available link under described the first type of message;
Distribution module, be used for according to the priority of each described type of message under described the first type of message, the priority of described current available link and default scheduling strategy, message under each described type of message under described the first type of message is assigned on corresponding link, by the link of described correspondence, described message is transmitted to equipment of the core network.
A kind of link scheduling method and device based on priority provided by the invention, receive and determine the type of message of each message, judge whether each described type of message has corresponding forwarding rule, the each described type of message without the rule of forwarding is defined as to the first type of message, obtain the priority of each described the first type of message and the priority of current available link, according to the priority of each described the first type of message, the priority of described current available link and default scheduling strategy, message under each described the first type of message is assigned on the link corresponding with described the first type of message, with the link by described correspondence, described message is transmitted to equipment of the core network.In the present invention according to the different priorities of type of message, the message of each type of message is assigned on the link of respective priority and forwards, thereby guarantee to have met message demand to qos parameter in transmitting procedure of different priorities, reduce the packet loss of message, improved the efficiency of transmission of message.
Accompanying drawing explanation
The schematic flow sheet of a kind of link scheduling method based on priority that Fig. 1 provides for the embodiment of the present invention;
The schematic flow sheet of the flow process of the link scheduling method of the another kind that Fig. 2 provides for the embodiment of the present invention based on priority;
The schematic flow sheet of the flow and method of the link scheduling method of the another kind that Fig. 3 provides for the embodiment of the present invention based on priority;
The schematic flow sheet of the flow and method of the link scheduling method of the another kind that Fig. 4 provides for the embodiment of the present invention based on priority;
The structural representation of a kind of link scheduling device based on priority that Fig. 5 provides for the embodiment of the present invention;
The structural representation of the link scheduling device of the another kind that Fig. 6 provides for the embodiment of the present invention based on priority.
Embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
The schematic flow sheet of a kind of link scheduling method based on priority that Fig. 1 provides for the embodiment of the present invention.In the present embodiment, the executive agent that is somebody's turn to do the link scheduling method based on priority can be server.This Servers installed is between terminal and equipment of the core network.As shown in Figure 1, should the link scheduling method based on priority comprise the following steps:
101, receive and determine the type of message of each message.
In reality, can classify to each message according to factors such as real-time, reliability, fail safe, bandwidth occupancies, in the present embodiment, dissimilar message has different priority.Particularly, for each message arranges a message identifier, this message identifier is carried in message and sends to server, can indicate by this message identifier the type of message that this message belongs to.The message that server receiving terminal sends, the message identifier of then carrying according to each message, determines the type of message of each message.
102, judge whether each type of message has corresponding forwarding rule.
Determining after the type of message of each message, server need to judge whether each type of message has corresponding forwarding rule, and wherein the forwarding of each type of message rule is pre-configured.
103, be defined as the first type of message by not thering is the regular type of message of forwarding.
In the present embodiment, server judges each type of message, and by not having the regular type of message of forwarding, is defined as the first type of message.Illustrate, have 10 kinds of type of messages, wherein have 4 kinds of type of messages not have the rule of forwarding, 4 kinds of type of messages without the rule of forwarding are referred to as the first type of message by server.Need explanation herein, the first type of message is only a title.
104, obtain the priority of the each type of message under the first type of message and the priority of current available link.
In the present embodiment, dissimilar message has different priority, and therefore, server can be determined the priority of each type of message under the first type of message.Server can detect link in real time, according to the state parameter such as signal strength signal intensity, signal to noise ratio of each current available link, for all current available links carry out priority level initializing.
105, according to the priority of the priority of each type of message under the first type of message, current available link and default scheduling strategy, message under each type of message under the first type of message is assigned on corresponding link, message is transmitted to equipment of the core network by corresponding link.
Particularly, first server obtains the first number of current available link, and the second number of the type of message that comprises of the first type of message, the first number and the second number is compared, to judge whether the first number is greater than or equal to the second number.Determining after the first number is greater than or equal to the second number, since server have the type of message of limit priority under the first type of message, successively the message under each type of message under the first type of message is assigned on the link corresponding with self priority according to priority orders, message is transmitted to equipment of the core network by this corresponding link.
Further, determining after the first number is less than the second number, server is chosen link that priority is minimum as the first link from current available link, then since thering is the type of message of limit priority under the first type of message, successively the message under type of message under the first type of message is assigned on the link corresponding with self priority according to priority orders, message is transmitted to equipment of the core network by corresponding link.A corresponding current available link of type of message in the present embodiment.
Because the first number is now less than the second number, the number of current available link is less than the number of type of message.Server can not be that type of messages all under the first type of message distributes an available link, in order to guarantee that under the first type of message, the message under remaining all type of messages can forward, server can adopt weighting round-robin scheduling (Weighted Round Robin, be called for short WRR) algorithm, message under remaining type of message under the first type of message is assigned on the first link of choosing, by this first link, the message under remaining type of message is transmitted to equipment of the core network.
Illustrate, the number that is less than type of message in the number of current available link, the number of supposing current available link is L, and the number of type of message is X, wherein, and L < X.First from the current available link of L bar, choose L link that priority is minimum as the first link.By L-1 the high-priority message type corresponding available link that sends to high priority one by one respectively, message under a remaining X-L+1 type of message adopts WRR algorithm assigns to L link, by L link, the message under remaining type of message is transmitted to equipment of the core network.
The link scheduling method based on priority that the present embodiment provides, receive and determine the type of message of each message, judge whether each type of message has corresponding forwarding rule, be defined as the first type of message by not thering is the regular type of message of forwarding, obtain the priority of each type of message and the priority of current available link under the first type of message, according to the priority of each type of message under the first type of message, the priority of current available link and default scheduling strategy, message under each type of message under the first type of message is assigned on corresponding link, message is transmitted to equipment of the core network by corresponding link.The different priorities having according to type of message in the present embodiment, the message of different priorities is assigned on the link of respective priority and forwards, thereby guarantee to have met message demand to qos parameter in transmitting procedure of different priorities, reduce the packet loss of message, improved the efficiency of transmission of message.
The schematic flow sheet of the link scheduling method of the another kind that Fig. 2 provides for the embodiment of the present invention based on priority.In the present embodiment, the executive agent that is somebody's turn to do the link scheduling method based on priority can be server.This Servers installed is between terminal and equipment of the core network.As shown in Figure 2, should the link scheduling method based on priority comprise the following steps:
201, receive and determine the type of message of each message.
202, judge whether each type of message has corresponding forwarding rule.
Step 201～step 202 is identical with step 101～step 102 in above-described embodiment, repeats no more herein.
203, be defined as the second type of message by thering is the regular type of message of forwarding.
In practical application, can set different forwarding rules for different type of messages, in the time that a type of message has the rule of forwarding, the forwarding rule that server is corresponding according to this type of message, the message that this type of message is comprised forwards.In the present embodiment, server forwards regular type of message by having, and is defined as the second type of message.Illustrate, have 10 kinds of type of messages, wherein have 4 kinds of type of messages not have the rule of forwarding, remaining 6 kinds of type of messages have the rule of forwarding, and 6 kinds of type of messages with the rule of forwarding are referred to as the second type of message by server.Need explanation herein, the second type of message is only a title.
204, obtain the forwarding rule that under the second type of message, each type of message is corresponding.
205, according to the forwarding rule that under the second type of message, each type of message is corresponding, the message under each type of message under the second type of message is assigned on corresponding link, by corresponding link, message is transmitted to equipment of the core network.
Particularly, different kind of message has different forwarding rules.Server is chosen a type of message as target message type from the second type of message, and wherein this target message type is any one type of message in the second type of message.If the forwarding rule of target message type comprises the Linktype code that indicates Linktype corresponding to target message type, server is that target message type is determined the target link set corresponding with type codes.In the present embodiment, the link of a type is formed to a link set, each target link set pair is answered a Linktype, and each target link set comprises at least 1 link.For example, Linktype can include line style link or radio-type link etc., under general dissimilar link, comprises multiple links.
Take radio-type link as example, radio-type link can comprise ethernet link, worldwide interoperability for microwave access (Worldwide Interoperability for Microwave Access, be called for short WiMax) wireless link, WiFi, global system for mobile communications (Global System of Mobile communication, be called for short GSM) wireless link, in the present embodiment, can form a link set corresponding to radio-type by above-mentioned wireless link.
Getting after target link set, server can get the priority of the current available link comprising under target link set.Particularly, server can be according to the state parameter of every link as signal strength signal intensity, signal to noise ratio etc., for all current available link under this target link set carries out prioritization.
Getting after the priority of all current available links under target link set, message under target message type is assigned on the current available link that priority that target link set comprises is the highest, and the message under target message type is transmitted to equipment of the core network by the current available link the highest by this priority.
Or, if the forwarding rule of target message type comprises the identification code that indicates target link corresponding to this target message type, server is assigned to the message under this target message type on the target link corresponding with identification code, by this target link, the message under target message type is transmitted to described equipment of the core network.
Or, if the forwarding rule of target message type comprises indicating, the message under this target message type is shunted to the indication information that sends and the identification code for each shunting link that the message under target message type is shunted.Because the forwarding rule of target message type comprises indicating, the message under this target message type is shunted to the indication information sending, server is learnt and need to be shunted transmission to the message under target message type according to this indication information.
Further, server can get the identification code of each shunting link that the message under target message type is shunted from forward rule, obtain the priority of each shunting link according to described identification code, and to sorting for the priority of the message under target message type being shunted to all shunting links that send, obtain a priority orders.Server, according to the priority orders of this shunting link, is successively assigned to the message under target message type on shunting link, by shunting link, the message under target message type is transmitted to equipment of the core network.
In the present embodiment, forwarding rule corresponding type of message is carried out to combination with the priority of type of message, the message of different priorities is assigned on the link of respective priority and forwards, thereby guarantee to have met message demand to qos parameter in transmitting procedure of different priorities, reduce the packet loss of message, improved the efficiency of transmission of message.
The schematic flow sheet of the link scheduling method of the another kind that Fig. 3 provides for the embodiment of the present invention based on priority.The executive agent that is somebody's turn to do the link scheduling method based on priority can be server.This Servers installed is between terminal and equipment of the core network.As shown in Figure 3, should the link scheduling method based on priority comprise the following steps:
301, receive and determine the type of message of each message.
302, judge whether each type of message has corresponding forwarding rule.
Step 301～step 302 is identical with above-described embodiment step 101～step 102, repeats no more herein.
If when judging some type of messages and not thering is corresponding forwarding rule, execution step 303; If when judging some type of messages and thering is corresponding forwarding rule, execution step 310.
303, be defined as the first type of message by not thering is the regular type of message of forwarding.
In the present embodiment, server judges each type of message, and to determine whether each type of message has the rule of forwarding, server is defined as the first type of message by not having the regular type of message of forwarding.
304, obtain the priority of the each type of message under the first type of message and the priority of current available link.
About the process of priority of obtaining current available link, can, referring to the record of related content in above-described embodiment, repeat no more herein.
Whether the first number that 305, judges current available link is greater than or equal to the second number of the type of message that the first type of message comprises.
Server obtains the first number of current available link, and the second number of the type of message that comprises of the first type of message, the first number and the second number is compared, to judge whether the first number is greater than or equal to the second number.If judged result is yes, execution step 306, if judged result is no, execution step 307.
306, since thering is the type of message of limit priority under the first type of message, according to priority orders, the message under each type of message under the first type of message is assigned on the link corresponding with self priority, by corresponding link, message is transmitted to equipment of the core network.
307, from current available link, choose link that priority is minimum as the first link.
308, since thering is the type of message of limit priority under the first type of message, successively the message under type of message under the first type of message is assigned on the link corresponding with self priority according to priority orders, by corresponding link, message is transmitted to equipment of the core network.
309, according to WRR algorithm, the message under remaining each type of message under the first type of message is assigned on the first link, by the first link, message is transmitted to equipment of the core network.
Because the first number is now less than the second number, the number of current available link is less than the number of type of message.Server can not be that the each type of message comprising under the first type of message distributes an available link, in order to guarantee that under the first type of message, the message under remaining all type of messages can forward, server can be used the algorithm according to WRR, message under remaining type of message is assigned on the first link of choosing, by this first link, the message under remaining type of message is transmitted to equipment of the core network.
The message under the each type of message under the first type of message is transmitted to by corresponding link in the process of equipment of the core network, server can be monitored the link of each correspondence, to judge whether corresponding link occurs extremely.Occur that server re-executes step 304 and obtains the priority of each type of message and the priority of current available link and subsequent operation under the first type of message extremely if monitor corresponding link.
In the present embodiment, in the time breaking down to the link of equipment of the core network forwarding messages, can again obtain the priority of current available link, can be again distribute the available link of corresponding grade for the message under the type of message of different priorities, can guarantee the efficiency of transmission of the message under type of message that priority is high.
310, be defined as the second type of message by thering is the regular type of message of forwarding.
311, from the second type of message, choose a type of message as target message type.
Wherein target message type is any one type of message in the second type of message.
312, obtain forwarding rule corresponding to target message type.
In practical application, the forwarding of target message type rule is following three kinds of one that forward in rule.If when the forwarding rule of target message type comprises the Linktype code that indicates Linktype corresponding to target message type, execution step 313; If the forwarding rule of target message type comprises the identification code that indicates target link corresponding to target message type, execution step 316; If the forwarding rule of target message type comprises indicating, the message under target message type is shunted to the indication information that sends and the identification code for each shunting link that the message of target message type is shunted, execution step 317.
313, for target message type is determined the target link set corresponding with type codes.
Wherein, a corresponding Linktype of link set, a link set comprises at least 1 link.
314, obtain the priority of the current available link comprising under target link set.
315, the message under target message type is assigned on the available link that current available link medium priority that target link set comprises is the highest, the message under target message type is transmitted to equipment of the core network by the available link the highest by priority.
316, the message under target message type is assigned on the target link corresponding with identification code, by target link, the message under target message type is transmitted to equipment of the core network.
317, obtain the priority of each shunting link and the priority orders of all shunting links.
318, according to priority orders, the message under target message type is successively assigned to and is shunted on link, by shunting link, the message under target message type is transmitted to equipment of the core network.
The message under the each type of message under the second type of message is transmitted to by corresponding link in the process of equipment of the core network, server can be monitored the link of each correspondence, to judge whether corresponding link occurs extremely.Occur that server re-executes step 311 and from the second type of message, chooses a type of message as target message type and subsequent operation extremely if monitor corresponding link.In the present embodiment, in the time breaking down to the link of equipment of the core network forwarding messages, can again obtain the priority of current available link, thereby can be available link corresponding to message allocation level under the type of message of different priorities again, thereby can guarantee the efficiency of transmission of the message under type of message that priority is high.
In the present embodiment, forwarding rule corresponding type of message is carried out to combination with the priority of type of message, the message of different priorities is assigned on the link of respective priority and forwards, thereby guarantee to have met message demand to qos parameter in transmitting procedure of different priorities, reduce the packet loss of message, improve the efficiency of transmission of message, and higher to the flexibility of link scheduling.
The schematic flow sheet of the link scheduling method of the another kind that Fig. 4 provides for the embodiment of the present invention based on priority.The executive agent that is somebody's turn to do the link scheduling method based on priority can be server.This Servers installed is between terminal and equipment of the core network.As shown in Figure 4, should the link scheduling method based on priority comprise the following steps:
401, receive and determine the type of message of each message.
The message that server receiving terminal sends, the then type of message of definite each message.
402, the message of same type of message is added in same message queue.
Server is linked into the message of same type of message in same message queue, that is to say a corresponding message queue of type of message.
403, judge whether each message queue has corresponding forwarding rule.
Generally can set in advance corresponding forwarding rule for type of message.In the present embodiment, due to the corresponding message queue of a type of message, server can judge whether each message queue has corresponding forwarding rule.If when judging some message queues and not thering is corresponding forwarding rule, execution step 404; If when judging some message queues and thering is corresponding forwarding rule, execution step 411.
404, be defined as the first message queue by not thering is the regular message queue of forwarding.
In reality, can be the default corresponding forwarding rule of a type of message, can not be also the default corresponding forwarding rule of this type of message.In step 403, judge some message queues and do not have when rule of forwarding, server can not have these regular message queue of forwarding and is defined as the first message queue.
405, obtain the priority of each message queue and the priority of current available link under the first message queue.
About the process of obtaining the priority of each type of message under the first type of message, can, referring to the record of related content in above-described embodiment, repeat no more herein.Due to the corresponding type of message of each message queue in the present embodiment, the priority of type of message is the priority of message queue, is learning the priority that just can get message queue after the priority of type of message.
About the process of priority of obtaining current available link, can, referring to the record of related content in above-described embodiment, repeat no more herein.
Whether the first number that 406, judges current available link is greater than or equal to the 3rd number of the message queue that the first message queue comprises.
Server obtains the first number of current available link, and the 3rd number of the first message queue of comprising of message queue, due to the corresponding type of message of each message queue in the present embodiment, the 3rd number equates with the second number in above-described embodiment step 105.Server compares the first number and the 3rd number, to judge whether the first number is greater than or equal to the 3rd number.If judged result is yes, execution step 407, if judged result is no, execution step 408.
407, since thering is the message queue of limit priority under the first message queue, according to priority orders, the message in each message queue under the first type of message is assigned on the link corresponding with self priority, by corresponding link, message is transmitted to equipment of the core network.
408, from current available link, choose link that priority is minimum as the first link.
409, since thering is the message queue of limit priority under the first message queue, successively the message in the message queue in the first message queue is assigned on the link corresponding with self priority according to priority orders, by corresponding link, message is transmitted to equipment of the core network.
410, according to WRR algorithm, the message in remaining message queue under the first message queue is assigned on the first link, by the first link, message is transmitted to equipment of the core network.
Because the first number is now less than the 3rd number, the number of current available link is less than the number of message queue.Server can not be that message queues all under the first message queue distributes an available link, in order to guarantee that under the first message queue, the message in remaining all message queues can forward, server can be assigned to the message in remaining message queue on the first link of choosing according to WRR algorithm, by this first link, the message in remaining message queue is transmitted to equipment of the core network.
The message in the each message queue in the first message queue is transmitted to by corresponding link in the process of equipment of the core network, server can be monitored the link of each correspondence, to judge whether corresponding link occurs extremely.Occur that server re-executes step 405 and subsequent operation extremely if monitor corresponding link.In the present embodiment, in the time breaking down to the link of equipment of the core network forwarding messages, can again obtain the priority of current available link, thereby can be available link corresponding to message allocation level in the message queue of different priorities again, thereby can guarantee the efficiency of transmission of the message in message queue that priority is high.
411, be defined as the second message queue by thering is the regular message queue of forwarding.
In step 403, judge some message queues and have when rule of forwarding, server can not have these regular message queue of forwarding and is defined as the second message queue.
412, from the second message queue, choose a message queue as target message queue.
Wherein, target message queue is any one message queue in the second message queue.
413, obtain forwarding rule corresponding to target message queue.
In practical application, the forwarding of target message queue rule is following three kinds of one that forward in rule.If when the forwarding rule of target message queue comprises the Linktype code that indicates Linktype corresponding to target message queue, execution step 414; If the forwarding rule of target message queue comprises the identification code that indicates target link corresponding to target message type, execution step 417; If the forwarding rule of target message queue comprises indicating, the message under target message queue is shunted to the indication information that sends and the identification code for each shunting link that the message of target message queue is shunted, execution step 418.
414, for the target link set corresponding with type codes determined in target message queue.
Wherein, a corresponding Linktype of link set, a link set comprises at least 1 link.
415, obtain the priority of the current available link comprising under target link set.
416, the message in target message queue is assigned on the available link that current available link medium priority that target link set comprises is the highest, the message in target message queue is transmitted to equipment of the core network by the available link the highest by priority.
417, the message in target message queue is assigned on the target link corresponding with identification code, by target link, the message in target message queue is transmitted to equipment of the core network.
418, obtain the priority of each shunting link and the priority orders of shunting link.
419, according to priority orders, the message in target message queue is successively assigned to and is shunted on link, by shunting link, the message in target message queue is transmitted to equipment of the core network.
The message in the each message queue in the second message queue is transmitted to by corresponding link in the process of equipment of the core network, server can be monitored the link of each correspondence, to judge whether corresponding link occurs extremely.Occur that server re-executes step 412 and from the second message queue, chooses a message queue as target message queue and subsequent operation extremely if monitor corresponding link.In the present embodiment, in the time breaking down to the link of equipment of the core network forwarding messages, can again obtain the priority of current available link, thereby can be available link corresponding to message allocation level under the type of message of different priorities again, thereby can guarantee the efficiency of transmission of the message under type of message that priority is high.
In the present embodiment, forwarding rule corresponding type of message is carried out to combination with the priority of type of message, the message of different priorities is assigned on the link of respective priority and forwards, thereby guarantee to have met message demand to qos parameter in transmitting procedure of different priorities, reduce the packet loss of message, improve the efficiency of transmission of message, and higher to the flexibility of link scheduling.
The structural representation of a kind of link scheduling device based on priority that Fig. 5 provides for the embodiment of the present invention.As shown in Figure 5, should comprise by the link scheduling device based on priority: receiver module 51, judge module 52, determination module 53, acquisition module 54 and distribution module 55.Should the link scheduling device based on priority can be server, be arranged between equipment of the core network and terminal.
In reality, according to factors such as real-time, reliability, fail safe, bandwidth occupancies, each message is classified, in the present embodiment, dissimilar message has different priority.Particularly, for each message arranges a message identifier, and this message identifier is carried in message.The message that receiver module 51 receiving terminals send, the message identifier of carrying according to each message, can determine the type of message that this message belongs to.
Judge module 52 is connected with determination module 53, and in the process each type of message being judged at judge module 52, determination module 53 forwards regular type of message by not having, and is defined as the first type of message.Illustrate referring to above-described embodiment, repeat no more herein.
In the present embodiment, dissimilar message has different priority.Determination module 53 is connected with acquisition module 54, acquisition module 54 can be determined the priority of each type of message under the first type of message, acquisition module 54 can detect link in real time particularly, according to the state parameter such as signal strength signal intensity, signal to noise ratio of each current available link, for all current available links carry out priority level initializing.
Particularly, distribution module 55 is obtained the first number of current available link, and the second number of the first type of message of comprising of type of message, by judge module 52, the first number and the second number are compared, to judge whether the first number is greater than or equal to the second number.
Determining after the first number is greater than or equal to the second number, since distribution module 55 have the type of message of limit priority under the first type of message, successively the message under each type of message under the first type of message is assigned on the link corresponding with self priority according to priority orders, message is transmitted to equipment of the core network by this corresponding link.
Further, determining after the first number is less than the second number, distribution module 55 is chosen link that priority is minimum as the first link from current available link, then since thering is the type of message of limit priority under the first type of message, successively the message under type of message under the first type of message is assigned on the link corresponding with self priority according to priority orders, message is transmitted to equipment of the core network by corresponding link.A corresponding current available link of type of message in the present embodiment.
Because the first number is now less than the second number, the number of current available link is less than the number of type of message.Distribution module 55 can not be that type of messages all under the first type of message distributes an available link, in order to guarantee that under the first type of message, the message under remaining all type of messages can forward, distribution module 55 can adopt WRR algorithm the message under remaining type of message under the first type of message to be assigned on the first link of choosing, by this first link, the message under remaining type of message is transmitted to equipment of the core network.Illustrate and can, referring to above-described embodiment, repeat no more herein.
The link scheduling device based on priority that the present embodiment provides, receive and determine the type of message of each message, judge whether each type of message has corresponding forwarding rule, be defined as the first type of message by not thering is the regular type of message of forwarding, obtain the priority of each type of message and the priority of current available link under the first type of message, according to the priority of each type of message under the first type of message, the priority of current available link and default scheduling strategy, message under each type of message under the first type of message is assigned on corresponding link, message is transmitted to equipment of the core network by corresponding link.The different priorities having according to type of message in the present embodiment, the message of different priorities is assigned on the link of respective priority and forwards, thereby guarantee to have met message demand to qos parameter in transmitting procedure of different priorities, reduce the packet loss of message, improved the efficiency of transmission of message.
The structural representation of the link scheduling device of the another kind that Fig. 6 embodiment of the present invention provides based on priority.As shown in Figure 6, should comprise receiver module 51, judge module 52, determination module 53, acquisition module 54, the distribution module 55 in above-described embodiment and choose module 56 by the link scheduling device based on priority.
Wherein, receiver module 51 is for receiving and determine the type of message of each message.
The judge module 52 connecting with receiver module 51 is for judging whether each type of message has corresponding forwarding rule.
The determination module 53 being connected with judge module 52 is also for being defined as the second type of message by having the regular type of message of forwarding.
The acquisition module 54 connecting with determination module 53 is also for obtaining the forwarding rule that under the second type of message, each type of message is corresponding.
The distribution module 54 connecting with acquisition module 54 is also for the forwarding rule according to each type of message is corresponding under the second type of message, message under each type of message under the second type of message is assigned on corresponding link, by corresponding link, message is transmitted to equipment of the core network.
Particularly, choose module 56 for choosing a type of message as target message type from described the second type of message.Wherein, target message type is any one type of message in the second type of message.
If the forwarding rule of the target message type that acquisition module 54 obtains comprises the Linktype code that indicates Linktype corresponding to target message type, distribution module 55 is specifically for determining the target link set corresponding with type codes for target message type, obtain the priority of the current available link comprising under target link set, message under target message type is assigned on the available link that current available link medium priority that target link set comprises is the highest, and the message under target message type is transmitted to equipment of the core network by the available link the highest by this priority.
If the forwarding rule of the target message type that acquisition module 54 obtains comprises the identification code that indicates target link corresponding to target message type, distribution module 55 is assigned to the message under target message type on the described target link corresponding with identification code, by target link, the message under target message type is transmitted to equipment of the core network.
If the forwarding rule of the target message type that acquisition module 54 obtains comprises indicating, the message under target message type is shunted to the indication information that sends and the identification code for each shunting link that the message under target message type is shunted, distribution module 55 is obtained the priority of each shunting link and the priority orders of all shunting links, according to priority orders, the message under target message type is successively assigned to and is shunted on link, by shunting link, the message under target message type is transmitted to equipment of the core network.
In the present embodiment, forwarding rule corresponding type of message is carried out to combination with the priority of type of message, the message of different priorities is assigned on the link of respective priority and forwards, thereby guarantee to have met message demand to qos parameter in transmitting procedure of different priorities, reduce the packet loss of message, improve the efficiency of transmission of message, and higher to the flexibility of link scheduling.
Further, the link scheduling device based on priority also comprises: monitoring module 57 and startup module 58.
Wherein, the monitoring module 57 being connected with distribution module 55, for to monitoring for the link that sends described message to described equipment of the core network, to judge whether described link exists extremely.
For the first type of message, the startup module 58 being connected with monitoring module 57 and acquisition module 54, exist when abnormal for monitor link at monitoring module 57, restart acquisition module 54 and obtain the priority of each type of message and the priority of current available link and subsequent operation under the first type of message described in carrying out.
And for the second type of message, with monitoring module 57 with choose the startup module 58 that module 56 is connected, also exist when abnormal for monitor link at monitoring module 57, restart and choose module 56 and carry out and from the second type of message, choose a type of message as target message type and subsequent operation.
In the present embodiment, in the time breaking down to the link of equipment of the core network forwarding messages, can again obtain the priority of current available link, thereby can be available link corresponding to message allocation level under the type of message of different priorities again, thereby can guarantee the efficiency of transmission of the message under type of message that priority is high.
Further, the link scheduling device based on priority also comprises: add module 59, for after receiving at receiver module 51 and determining the type of message of each message, the message of same type of message is added in same message queue.
In the present embodiment, due to the corresponding message queue of a type of message, judge module 52 can judge whether each message queue has corresponding forwarding rule.Determination module 53 is defined as the first message queue by not having the regular message queue of forwarding, and determines the second message queue by having the regular message queue of forwarding.
Due to the corresponding type of message of each message queue in the present embodiment, the priority of type of message is the priority of message queue, gets the priority that just can learn each message queue after the priority of type of message at acquisition module 54.
For the first message queue, distribution module 55 is obtained the first number of current available link, and the 3rd number of the first message queue of comprising of message queue, due to the corresponding type of message of each message queue, the 3rd number is that the second number equates with the number of type of message.Judge module 52 compares the first number and the 3rd number, to judge whether the first number is greater than or equal to the 3rd number.If being the first number, judged result is greater than or equal to the 3rd number, since distribution module 55 have the described message queue of limit priority under the first message queue, according to priority orders, the message in each message queue under the first type of message is assigned on the link corresponding with self priority, if described message is transmitted to equipment of the core network by corresponding link. judge that structure is that the first number is less than the 3rd number distribution module 55 and from current available link, chooses link that priority is minimum as the first link, since thering is the message queue of limit priority under the first message queue, successively the message in the message queue in the first message queue is assigned on the link corresponding with self priority according to priority orders, by corresponding link, described message is transmitted to equipment of the core network.Because the number of current available link is less than the number of message queue.Distribution module 55 can not be that message queues all under the first message queue distributes an available link, in order to guarantee that under the first message queue, the message in remaining all message queues can forward, distribution module 44 is according to WRR algorithm, message in remaining message queue is assigned on the first link of choosing, by this first link, the message in remaining message queue is transmitted to equipment of the core network.
For the second message queue, to choose module 56 and from the second message queue, choose a message queue as target message queue, acquisition module 54 obtains the forwarding rule of each message queue under the second message queue.
If the forwarding rule of the target message queue that acquisition module 54 obtains comprises the Linktype code that indicates Linktype corresponding to target message queue, distribution module 55 is the definite target link set corresponding with type codes of target message queue, obtain the priority of the current available link comprising under target link set, message in target message queue is assigned on the available link that current available link medium priority that target link set comprises is the highest, and the message in target message queue is transmitted to equipment of the core network by the available link the highest by priority.
If the forwarding rule of the target message queue that acquisition module 54 obtains comprises the identification code that indicates target link corresponding to target message type, distribution module 55 is assigned to the message in target message queue on the target link corresponding with this identification code, by target link, the message in target message queue is transmitted to equipment of the core network.
If the forwarding rule of the target message queue that acquisition module 54 obtains comprises indicating, the message under target message type is shunted to the indication information that sends and the identification code for each shunting link that the message of target message queue is shunted, distribution module 55 is obtained the priority of each shunting link and the priority orders of shunting link, according to priority orders, the message in target message queue is successively assigned to and is shunted on link, by shunting link, the message in target message queue is transmitted to equipment of the core network.
Finally it should be noted that: above each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (14)
1. the link scheduling method based on priority, is characterized in that, comprising:
Receive and determine the type of message of each message;
Judge whether each described type of message has corresponding forwarding rule;
Be defined as the first type of message by not thering is the described described type of message that forwards rule;
Obtain the priority of each described type of message and the priority of current available link under described the first type of message;
According to the priority of each described type of message under described the first type of message, the priority of described current available link and default scheduling strategy, message under each described type of message under described the first type of message is assigned on corresponding link, by the link of described correspondence, described message is transmitted to equipment of the core network.
2. the link scheduling method based on priority according to claim 1, is characterized in that, after obtaining under described the first type of message the priority of each described type of message and the priority of current available link, also comprises:
Whether the first number that judges described current available link is greater than or equal to the second number of the described type of message that described the first type of message comprises;
If described the first number is greater than or equal to described the second number, according to the priority of each described type of message under described the first type of message, the priority of described current available link and default scheduling strategy, the message of each described type of message under described the first type of message is assigned on corresponding link, by the link of described correspondence, described message is transmitted to equipment of the core network and comprises:
The described type of message from described the first type of message with limit priority starts, according to priority orders, the message under each described type of message under described the first type of message is assigned on the link corresponding with self priority, by the link of described correspondence, described message is transmitted to described equipment of the core network.
3. the link scheduling method based on priority according to claim 2, is characterized in that, also comprises:
If described the first number is less than described the second number, according to the priority of each described type of message under described the first type of message, the priority of described current available link and default scheduling strategy, message under each described type of message under described the first type of message is assigned on corresponding link, by the link of described correspondence, described message is transmitted to equipment of the core network and comprises:
From described current available link, choose link that priority is minimum as the first link;
The described type of message from described the first type of message with limit priority starts, successively the message under described type of message under described the first type of message is assigned on the link corresponding with self priority according to priority orders, by the link of described correspondence, described message is transmitted to described equipment of the core network;
According to weighting round-robin scheduling WRR algorithm, the message under remaining described type of message under described the first type of message is assigned on described the first link, by described the first link, described message is transmitted to described equipment of the core network.
4. the link scheduling method based on priority according to claim 1, is characterized in that, also comprises:
Be defined as the second type of message by thering is the described described type of message that forwards rule;
Obtain described forwarding rule corresponding to each described type of message under described the second type of message;
According to described forwarding rule corresponding to each described type of message under described the second type of message, message under each described type of message under described the second type of message is assigned on corresponding link, by the link of described correspondence, described message is transmitted to described equipment of the core network.
5. the link scheduling method based on priority according to claim 4, it is characterized in that, described according to described forwarding rule corresponding to each described type of message under described the second type of message, message under each described type of message under described the second type of message is assigned on corresponding link, by the link of described correspondence, described message is transmitted to described equipment of the core network and comprises:
From described the second type of message, choose a type of message as target message type; Wherein, described target message type is any one type of message in described the second type of message;
If the described forwarding rule of described target message type comprises the Linktype code that indicates Linktype corresponding to described target message type, is that described target message type is determined the target link set corresponding with described type codes;
Obtain the priority of the current available link comprising under described target link set;
Message under described target message type is assigned on the available link that described current available link medium priority that described target link set comprises is the highest, and the message under described target message type is transmitted to described equipment of the core network by the available link the highest by described priority;
Or, if the described forwarding rule of described target message type comprises the identification code that indicates target link corresponding to described target message type, the message under described target message type is assigned on the described target link corresponding with described identification code, by described target link, the message under described target message type is transmitted to described equipment of the core network;
Or, if described target message type described forwards rule and comprises indicating the message under described target message type shunt to the indication information of transmission and the identification code for each shunting link that the message under described target message type is shunted, obtain the priority of each described shunting link and the priority orders of all described shunting links, according to described priority orders by the message under described target message type be successively assigned to described shunting link on, by described shunting link, the message under described target message type is transmitted to described equipment of the core network.
6. the link scheduling method based on priority according to claim 1 or 5, is characterized in that, also comprises:
To monitoring for the link that sends described message to described equipment of the core network, to judge whether described link exists extremely;
For described the first type of message, exist extremely if monitor described link, described in re-executing, obtain the priority of each described type of message and the priority of current available link and subsequent operation under described the first type of message;
For described the second type of message, exist extremely if monitor described link, re-execute and from described the second type of message, choose a type of message as target message type and subsequent operation; Wherein, described target message type is any one type of message in described the second type of message.
7. the link scheduling method based on priority according to claim 1, is characterized in that, after the type of message of described reception definite each message, also comprises:
The described message of same described type of message is added in same message queue.
8. the link scheduling device based on priority, is characterized in that, comprising:
Receiver module, for receiving and determine the type of message of each message;
Judge module, for judging whether each described type of message has corresponding forwarding rule;
Determination module, for being defined as the first type of message by not having the described described type of message that forwards rule;
Acquisition module, for obtaining the priority of each described type of message and the priority of current available link under described the first type of message;
Distribution module, be used for according to the priority of each described type of message under described the first type of message, the priority of described current available link and default scheduling strategy, message under each described type of message under described the first type of message is assigned on corresponding link, by the link of described correspondence, described message is transmitted to equipment of the core network.
9. the link scheduling device based on priority according to claim 8, is characterized in that,
Described judge module, also for obtain under described the first type of message the priority of each described type of message and the priority of current available link at acquisition module after, whether the first number that judges described current available link is greater than or equal to the second number of the described type of message that described the first type of message comprises;
Described distribution module is specifically for judging after described the first number is greater than or equal to described the second number, the described type of message from described the first type of message with limit priority starts, according to priority orders, the message under each described type of message under described the first type of message is assigned on the link corresponding with self priority, by the link of described correspondence, described message is transmitted to described equipment of the core network.
10. the link scheduling device based on priority according to claim 9, is characterized in that,
Described distribution module is specifically for being less than after described the second number judging described the first number, from described current available link, choose link that priority is minimum as the first link, the described type of message from described the first type of message with limit priority starts, successively the message under described type of message under described the first type of message is assigned on the link corresponding with self priority according to priority orders, described message is transmitted to described equipment of the core network by link by described correspondence, according to weighting round-robin scheduling WRR algorithm, the message under remaining described type of message under described the first type of message is assigned on described the first link, by described the first link, described message is transmitted to described equipment of the core network.
The 11. link scheduling devices based on priority according to claim 8, is characterized in that,
Described determination module, also for being defined as the second type of message by having the described described type of message that forwards rule;
Described acquisition module, also for obtaining described forwarding rule corresponding to each described type of message under described the second type of message;
Described distribution module, also for regular according to described forwarding corresponding to each described type of message under described the second type of message, message under each described type of message under described the second type of message is assigned on corresponding link, by the link of described correspondence, described message is transmitted to described equipment of the core network.
The 12. link scheduling devices based on priority according to claim 11, is characterized in that, also comprise:
Choose module, for choosing a type of message as target message type from described the second type of message; Wherein said target message type is any one type of message in described the second type of message;
If the described forwarding rule of the described target message type that described acquisition module obtains comprises the Linktype code that indicates Linktype corresponding to described target message type, described distribution module is specifically for being the definite target link set corresponding with described type codes of described target message type, obtain the priority of the current available link comprising under described target link set, message under described target message type is assigned on the available link that described current available link medium priority that described target link set comprises is the highest, the message under described target message type is transmitted to described equipment of the core network by the available link the highest by described priority,
If the described forwarding rule of the described target message type that described acquisition module obtains comprises the identification code that indicates target link corresponding to described target message type, described distribution module, specifically for the message under described target message type is assigned on the described target link corresponding with described identification code, is transmitted to described equipment of the core network by described target link by the message under described target message type;
If the described target message type that described acquisition module obtains described forwards rule and comprises indicating the message under described target message type shunt to the indication information of transmission and the identification code for each shunting link that the message under described target message type is shunted, described distribution module is specifically for obtaining the priority of each described shunting link and the priority orders of all described shunting links, according to described priority orders by the message under described target message type be successively assigned to described shunting link on, by described shunting link, the message under described target message type is transmitted to described equipment of the core network.
The link scheduling device based on priority described in 13. according to Claim 8 or 12, is characterized in that, also comprises:
Monitoring module, for to monitoring for the link that sends described message to described equipment of the core network, to judge whether described link exists extremely;
Start module, be used for for described the first type of message, exist extremely if monitor described link, restart described acquisition module and obtain the priority of each described type of message and the priority of current available link and subsequent operation under described the first type of message described in carrying out;
Described startup module, also, for for described the second type of message, exists extremely if monitor described link, chooses module execution and from described the second type of message, choose a type of message as target message type and subsequent operation described in restarting.
The 14. link scheduling devices based on priority according to claim 8, is characterized in that, also comprise:
Add module, for after receiving at described receiver module and determining the type of message of each message, the described message of same described type of message is added in same message queue.
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