CN104581968A - Method for scheduling non-guaranteed bit rate businesses - Google Patents
Method for scheduling non-guaranteed bit rate businesses Download PDFInfo
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- CN104581968A CN104581968A CN201310507137.1A CN201310507137A CN104581968A CN 104581968 A CN104581968 A CN 104581968A CN 201310507137 A CN201310507137 A CN 201310507137A CN 104581968 A CN104581968 A CN 104581968A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
Abstract
A method for scheduling non-guaranteed bit rate businesses comprises the following steps: classifying the Non-GBR businesses according to a QOS requirement, and determining an SBR for different classes of the Non-GBR businesses respectively, wherein if the average rate of the Non-GBR business is smaller than the SBR of the Non-GBR class, the Non-GBR business is an unsatisfactory business, and if the average rate of the Non-GBR business is larger than the SBR of the Non-GBR class, the Non-GBR business is a satisfactory business; after all the unsatisfactory businesses are scheduled, scheduling the satisfactory businesses. After the adoption of the method, the fact that each Non-GBR business can obtain service meeting the QOS requirement can be ensured, so that throughput of a system can be maximized.
Description
Technical field
The application relates to communication technical field, more specifically, relates to a kind of method of dispatching non-guaranteed bit rate traffic.
Background technology
In LTE system, the basic granularity that service quality (QoS) controls is radio bearer, namely all data flow in same bearer ensure obtaining identical QoS (as scheduling strategy, buffering queue management, link layer configuration etc.), different QoS ensures needs dissimilar Evolved Packet System (EPS) carrying to provide.
According to the difference of QoS, radio bearer can be divided into two large classes: ensure bit rate (GBR) and non-guaranteed bit rate (Non-GBR).So-called GBR, refer to that the bit rate of load bearing requirements is by the constant distribution of network " forever ", even if when Internet resources anxiety, corresponding bit rate also can keep.Maximum bit rate (MBR) parameter defines under GBR is carried on the condition of resource abundance, the rate-limit that can reach.The value of MBR is likely more than or equal to the value of GBR.Contrary, Non-GBR refers to when network congestion, and business (or carrying) needs the requirement of bearing changing down, because Non-GBR carrying does not need to take fixing Internet resources, thus can set up for a long time.And GBR carrying is generally just just set up when needed.
In Access Network, the QoS of upper carrying of eating dishes without rice or wine is controlled by base station (eNodeB), and each carrying has corresponding qos parameter service quality rating to indicate (QCI) and distributes reserved priority (ARP).
QCI is applied to GBR and Non-GBR carrying simultaneously.A QCI is a value, comprises priority, packet delay, and the index such as acceptable Packet Error Ratio, and each QCI is associated with a priority, and priority 1 is the highest priority level.The value of carrying QCI determines its processing policy at eNB.
Define the value of nine kinds of different QCI in standard, what interface transmitted is the value of QCI instead of the QoS attribute of its correspondence.By the standardization to QCI, can the different producer of specification for the understanding of corresponding QoS business and process, convenient interconnection and interflow in multi-vendor interconnection environment and roaming environments between distinct device/system.
In current LTE system scheduling mechanism, because Non-GBR business itself is not to the requirement of speed.The dispatching algorithm dispatching servicess such as usual employing poll, max carrier to interference, Proportional Fair.Poll and max carrier to interference all do not consider the characteristic of business itself, and just inquiry or foundation channel condition are dispatched successively.And for Proportional-Fair algorithm, exactly because Non-GBR business does not have rate requirement, so Proportional-Fair algorithm cannot be used to carry out calculating priority level.Therefore, common dispatching algorithm cannot ensure that each Non-GBR business all can obtain required QoS service.
Summary of the invention
The embodiment of the present invention proposes a kind of method of dispatching non-guaranteed bit rate traffic, can ensure that each Non-GBR business can obtain required QoS service, and then maximum system throughput.
The technical scheme of the embodiment of the present invention is as follows:
Dispatch a method for non-guaranteed bit rate traffic, described method comprises:
Non-guaranteed bit rate Non-GBR business classified according to service quality QoS demand, the Non-GBR business being respectively different classes of determines minimum satisfactory rate SBR;
The Mean Speed of Non-GBR business is less than the SBR of affiliated Non-GBR classification, then this Non-GBR business is dissatisfied business;
The Mean Speed of Non-GBR business is more than or equal to the SBR of affiliated Non-GBR classification, then this Non-GBR business is for being satisfied with business;
After all dissatisfied traffic scheduling complete, then scheduling is satisfied with business.
Describedly determine that the SBR of the Non-GBR business same line of business of identical QoS demand comprises: the SBR of the Non-GBR business same line of business of identical QoS demand equals to be in the most not good enough desired speed in edge in identical QoS.
After described all dissatisfied traffic scheduling complete, then scheduling is satisfied with business and comprises:
The priority of dissatisfied business is determined according to the Mean Speed of Non-GBR business, SBR and Priority Base;
The present channel quality corresponding according to the business that is satisfied with determines the priority of the business that is satisfied with;
Priority according to dissatisfied business is dispatched with the priority being satisfied with business.
The described Mean Speed according to Non-GBR business, SBR and Priority Base determine that the priority of dissatisfied business comprises:
Priority=(Mean Speed/SBR of 1-Non-GBR business) * 100+ Priority Base of dissatisfied business.
The span of described Priority Base is 16 to 1000.
Described Priority Base recommends value 100.
The described present channel quality corresponding according to the business that is satisfied with determines that the priority of the business that is satisfied with comprises: present channel quality index corresponding to the business that is satisfied with equals to be satisfied with the priority of business.
As can be seen from technique scheme, Non-GBR business classified in embodiments of the present invention according to QoS demand, the Non-GBR business being respectively different classes of determines SBR; The Mean Speed of Non-GBR business is less than the SBR of affiliated Non-GBR classification, then this Non-GBR business is dissatisfied business; The Mean Speed of Non-GBR business is more than or equal to the SBR of affiliated Non-GBR classification, then this Non-GBR business is for being satisfied with business; After all dissatisfied traffic scheduling complete, then scheduling is satisfied with business.Priority scheduling is unsatisfied with business, and then scheduling meets business.The each Non-GBR of such guarantee obtains required QoS service, and then maximum system throughput.
Accompanying drawing explanation
Fig. 1 is the method flow schematic diagram of scheduling non-guaranteed bit rate traffic.
Embodiment
Express clearly clear for making the object, technical solutions and advantages of the present invention, below in conjunction with drawings and the specific embodiments, the present invention is further described in more detail.
In embodiments of the present invention, non-guaranteed bit rate traffic be divided into dissatisfied business and be satisfied with business.After dissatisfied traffic scheduling completes, then scheduling is satisfied with business.Priority scheduling is unsatisfied with business, and then scheduling is satisfied with business.The each Non-GBR business of such guarantee scheduling obtains required QoS service, and then maximum system throughput.
See the method flow schematic diagram that accompanying drawing 1 is scheduling non-guaranteed bit rate traffic, specifically comprise the following steps:
101, Non-GBR business classified according to QoS demand, the Non-GBR business being respectively different classes of determines SBR.
The Non-GBR business that QoS is identical belongs to same Non-GBR classification.When Non-GBR business is set up, SBR is set in same Non-GBR classification, be in the most not good enough desired speed in edge.Meet edge the most not good enough desired rate time, namely can meet the demand of all users in same line of business.
102, the Mean Speed of Non-GBR business is less than the SBR of affiliated Non-GBR classification, then this Non-GBR business is dissatisfied business; The Mean Speed of Non-GBR business is more than or equal to the SBR of affiliated Non-GBR classification, then this Non-GBR business is for being satisfied with business.
First calculate the Mean Speed of identical category Non-GBR business, the SBR according to affiliated Non-GBR classification judges that whether this Non-GBR business is for being satisfied with business, for being satisfied with business and dissatisfied business has different modes to calculate the priority of its correspondence respectively.
The Mean Speed of Non-GBR business is less than the SBR of affiliated Non-GBR classification, then this Non-GBR business is dissatisfied business; The Mean Speed of Non-GBR business is more than or equal to the SBR of affiliated Non-GBR classification, then this Non-GBR business is for being satisfied with business.
103, after all dissatisfied traffic scheduling complete, then scheduling is satisfied with business.
Meet QoS demand to preferentially ensure, after all dissatisfied traffic scheduling complete, then scheduling is satisfied with business.Specifically comprise: the priority determining dissatisfied business according to the Mean Speed of Non-GBR business, SBR and Priority Base; The priority being satisfied with business determined in the present channel quality index corresponding according to the business that is satisfied with; Priority according to dissatisfied business is dispatched with the priority being satisfied with business.
For dissatisfied business calculating priority level in such a way.
Priority=(Mean Speed/SBR of 1-Non-GBR business) * 100+ Priority Base of dissatisfied business.
Priority Base is ensure that the priority of dissatisfied business sets higher than the priority being satisfied with business, and its span is 16 to 1000.Optimum value through Multi simulation running Priority Base is 100.
For being satisfied with business: in order to maximum system throughput, adopting max carrier to interference scheduling algorithm to being satisfied with business, determining according to the present channel quality being satisfied with business the priority being satisfied with business, channel quality index can be used to characterize channel quality.Channel quality index is the parameter of protocol definition reaction present channel quality, for scheduling.So the priority being satisfied with business equals the current channel quality index of this business.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. dispatch a method for non-guaranteed bit rate traffic, it is characterized in that, described method comprises:
Non-guaranteed bit rate Non-GBR business classified according to service quality QoS demand, the Non-GBR business being respectively different classes of determines minimum satisfactory rate SBR;
The Mean Speed of Non-GBR business is less than the SBR of affiliated Non-GBR classification, then this Non-GBR business is dissatisfied business;
The Mean Speed of Non-GBR business is more than or equal to the SBR of affiliated Non-GBR classification, then this Non-GBR business is for being satisfied with business;
After all dissatisfied traffic scheduling complete, then scheduling is satisfied with business.
2. dispatch the method for non-guaranteed bit rate traffic according to claim 1, it is characterized in that, describedly determine that the SBR of the Non-GBR business same line of business of identical QoS demand comprises: the SBR of the Non-GBR business same line of business of identical QoS demand equals to be in the most not good enough desired speed in edge in identical QoS.
3. dispatch the method for non-guaranteed bit rate traffic according to claim 1, it is characterized in that, after described all dissatisfied traffic scheduling complete, then scheduling is satisfied with business and comprises:
The priority of dissatisfied business is determined according to the Mean Speed of Non-GBR business, SBR and Priority Base;
The present channel quality corresponding according to the business that is satisfied with determines the priority of the business that is satisfied with;
Priority according to dissatisfied business is dispatched with the priority being satisfied with business.
4. dispatch the method for non-guaranteed bit rate traffic according to claim 3, it is characterized in that, the described Mean Speed according to Non-GBR business, SBR and Priority Base determine that the priority of dissatisfied business comprises:
Priority=(Mean Speed/SBR of 1-Non-GBR business) * 100+ Priority Base of dissatisfied business.
5. dispatch the method for non-guaranteed bit rate traffic according to claim 4, it is characterized in that, the span of described Priority Base is 16 to 1000.
6. dispatch the method for non-guaranteed bit rate traffic according to claim 4, it is characterized in that, described Priority Base recommends value 100.
7. dispatch the method for non-guaranteed bit rate traffic according to claim 3, it is characterized in that, the described present channel quality corresponding according to the business that is satisfied with determines that the priority of the business that is satisfied with comprises: present channel quality index corresponding to the business that is satisfied with equals to be satisfied with the priority of business.
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| CN201310507137.1A CN104581968B (en) | 2013-10-24 | 2013-10-24 | A method of dispatching non-guaranteed bit rate traffic |
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| CN110730481A (en) * | 2019-10-30 | 2020-01-24 | 武汉虹信通信技术有限责任公司 | Self-adaptive method and device for cluster bearing service quality parameters |
| CN111629435A (en) * | 2019-02-27 | 2020-09-04 | 大唐移动通信设备有限公司 | Service scheduling method and device |
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| CN104581968B (en) | 2019-02-05 |
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