CN101646196A - Method and device for ensuring business service quality - Google Patents
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Abstract
The invention relates to a method and a device for ensuring business service quality, wherein, the method is as follows: judging whether an S1 interface is congested; if congestion occurs to the S1 interface according to the detection results, then the service quality of delay sensitive business is ensured by reducing the available bandwidth of the S1 interface. In the embodiment of the invention,the congestion of the S1 interface is remitted by reducing the available bandwidth of the S1 interface when judging that congestion occurs to the S1 interface to ensure the business service quality.
Description
Technical field
The invention relates to moving communicating field, particularly a kind of method and device that guarantees QoS.
Background technology
In wireless telecommunication system, Long Term Evolution (Long Term Evolution, LTE) system's broad tape code divides multiple access technique (Wideband Code Division Multiple Access, WCDMA) system provides the more business of horn of plenty, the speech that has comprised various speed, data streaming service, background service (BACKGROUND business, download as FTP) etc., high-speed data service particularly, make that the LTE system can (Universal Mobile Telecommunications System, UMTS) system provides the service rate of several times even last ten times than universal mobile telecommunications system.High-rate service can provide better service, but when resource was restricted (bandwidth, power, resources such as hardware), professional stability will be on the hazard, and directly had influence on professional service quality (Quality of Service, QoS) attribute.
In the LTE system, different types of service is different for the requirement of time delay.Such as background service, its tolerance to time delay is very big, interactive service also can be tolerated second delay of level, but, VoIP (Voice over Internet Protocol), IP multimedia system (IP Multimedia Subsystem, IMS) etc. business belongs to the delay sensitive business, and is all very high to the requirement of time delay and delay variation, such as, the delay variation of a few tens of milliseconds all may produce very big influence to the QoS of business.
In actual networking, because S 1 interface of LTE system can adopt media such as microwave, IP network to carry out networking, the interference of network congestion or microwave causes the transmission of packet to have bigger delay variation.Special occur when congested when network, the scope of delay variation is very big, may reach more than hundred milliseconds, to the bigger influence of QoS generation of business.
Summary of the invention
For solving the above-mentioned problems in the prior art, the embodiment of the invention provides a kind of method and apparatus that guarantees QoS, makes professional QoS to take place to guarantee under the congested situation at network.
On the one hand, the embodiment of the invention provides a kind of method that guarantees QoS, and described method comprises: it is congested to judge whether the S1 interface takes place; If judged result is congested for the generation of S1 interface, then, guarantee the service quality of delay sensitive business by reducing the available bandwidth of described S1 interface.
On the one hand, the embodiment of the invention also provides a kind of device that guarantees QoS in addition, and described device comprises: judging unit is used to judge whether S 1 interface takes place congested; Processing unit, be used for when the judged result of described judging unit when being, by reducing the available bandwidth of described S1 interface, guarantee the service quality of delay sensitive business.
The scheme of the embodiment of the invention, the available bandwidth of described S 1 interface takes place to reduce when congested by judging the S1 interface in the embodiment of the invention, alleviates the congested of S1 interface, to guarantee QoS.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart that guarantees the method for QoS in the embodiment of the invention;
Fig. 2 judges in the embodiment of the invention whether described S 1 interface congested method flow diagram takes place;
Fig. 3 is a GTPU form in the embodiment of the invention;
Fig. 4 is an amended GTPU form in the embodiment of the invention;
Fig. 5 is the structure chart that guarantees the device of QoS in the embodiment of the invention;
Fig. 6 is the structure chart of the congestion detection unit of the device of assurance QoS in the embodiment of the invention;
Fig. 7 is the structure chart of first judging unit of the device of assurance QoS in the embodiment of the invention;
Fig. 8 is the structure chart of the computation subunit of the device of assurance QoS in the embodiment of the invention;
Fig. 9 is the structure chart of the processing unit of the device of assurance QoS in the embodiment of the invention;
Figure 10 is the structure chart that guarantees the device of QoS in the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The S1 interface is E-NodeB (eNB) and System Architecture Evolution (System Architecture Evolution, SAE) management chain of command agreement (the Mobility Management Entity in the system, MME)/agreement (the User Plane Entity of leading subscriber face, UPE) interface, the embodiment of the invention is by improving the congestion state that eNB realizes alleviating the S1 interface.
A kind of method that guarantees QoS is provided in one embodiment of the invention, as shown in Figure 1, said method comprising the steps of:
Step S101: it is congested to judge whether the S1 interface takes place;
Step S103:, then, guarantee the service quality of delay sensitive business by reducing the available bandwidth of described S1 interface if judged result is congested for the generation of S1 interface.
The available bandwidth of described S1 interface takes place to reduce when congested by judging the S1 interface in present embodiment, alleviates the congested of S1 interface, to guarantee QoS.
Illustrate below how to judge whether the S1 interface takes place congested.Judge among the step S101 whether the S1 interface take place congested comprising:, judge whether described S1 interface takes place congested by the time delay of statistics S1 interface; Or judge by the statistics queue length whether described S1 interface takes place congested; Or (Real-time Transport Protocol, transmitting-receiving bag time RTP) judge whether the S1 interface methods such as congested take place to pass through real time transport protocol.
As shown in Figure 2, by the time delay of statistics S 1 interface, judge whether described S1 interface congested method takes place may further comprise the steps among the step S101:
Step S201: in a time cycle, repeatedly calculate the time delay of S1 interface, add up the average delay of S1 interface in this time cycle;
Step S203: a N continuous average delay value relatively, judge whether a described N continuous average delay value is and increase progressively variation and increment and surpassed the congestion threshold value, if judged result is for being to judge that then described S1 interface generation is congested.
The time delay of calculating the S1 interface among the step S201 specifically can comprise: send the congestion detection request message that carries timestamp A, the congestion detection response message of timestamp B is carried in reception, and the time C of the described congestion detection response message of recorder, calculate the proportionate relationship of B-A and C-B, by proportionate relationship and the two-way time delay C-A of B-A and C-B, obtain the descending time delay of the uplink time delay and/or the S1 interface of S1 interface.
In the LTE system, evolved NodeB (eNB) and System Architecture Evolution (System ArchitectureEvolution, SAE) communicate by the GTPU tunnel between the system, GTPU (3gpp 29.060 agreements) provides a kind of ECHO REQ/RESPONSE interaction mechanism to carry out user's face passage and has detected (GTPU form as shown in Figure 3), when Message Type extends this as 1, expression is an ECHO REQUEST message, when Message Type extended this as 2, expression was an ECHO RESPONSE message.ENB/SAE can periodically send ECHO REQUEST message to the opposite end, after receiving ECHO REQUEST message, the opposite end can send ECHO RESPONSE message immediately, transmit leg just can obtain the S1 interface time delay of current time by detecting the time difference between ECHORESPONSE and the ECHO REQUEST message.
The time delay of obtaining by said method is the two-way time delay of a S1 interface, but because the disequilibrium of up-downgoing business, this two-way time delay equivalence simply is 2 times a One Way Delay, so need obtain One Way Delay by above-mentioned data format is simply revised.In 29.060 agreements, arrange, when sending ECHO REQUEST and ECHO RESPONSE message, the Tunnel Endpoint Identifier of 5-8 byte must be filled to 0, we can redefine timestamp into delivery time to this field like this, thereby have obtained the One Way Delay of S1 interface.
Amended data frame format as shown in Figure 4, wherein PT is a protocol type, 1 expression GTP agreement, 0 expression GTP ' agreement; E is the extension header flag bit, and there is extension header 1 expression back, and 0 expression does not have; S is the sequence number flag bit, and there is the GTPU sequence number 1 expression back, and 0 expression does not have; PN is a N-PDU sequence number flag bit, and there is the N-PDU sequence number 1 expression back, and 0 expression does not have.
When transmit leg sent ECHO REQUEST message, this field extended this as the temporal information (being accurate to ms) that sends ECHOREQUEST, supposes to equal A; When the recipient receives ECHOREQUEST, when sending ECHO RESPONSE message, this field extends this as the temporal information that sends ECHORESPONSE, supposes to equal B.Write down current information of time receive recipient's ECHORESPONSE when transmit leg after, suppose to equal C.We can obtain three temporal information A like this, B, C, wherein C-A represents the two-way time delay of S1 interface, B-A and C-B represent respectively/descending One Way Delay, because eNB is different clock systems with the SAE system, subtracts each other directly that to have obtained data be inaccurate, therefore need adjust this time delay, the proportionate relationship that we can calculate B-A and C-B obtains up-downgoing One Way Delay truly.For example suppose C-A=100ms, the proportionate relationship of B-A and C-B is 3, and then B-A is 75ms, and C-B is 25ms.
Except that using the ECHO message, also can use the PING message to carry out S1 interface congestion state-detection in the embodiment of the invention.ENB periodically sends the PING request message to the SAE gateway, record sends the time A of PING request message, eNB receives the time B that the PING response message gets this PING response message of transmission that wherein carries, and recorder is to the time C of this PING response message, with the method for calculating the uplink and downlink time delay of S1 interface by the ECHOREQ/RESPONSE message, calculate the uplink and downlink time delay of S1 interface by A, B, C.
Judge by the statistics queue length whether described S1 interface take place congested comprising among the step S101: whether the length of judging data cached formation surpass the threshold value of setting, if judged result is for being to judge that then described S1 interface generation is congested.
Pass through the transmitting-receiving bag time of Real-time Transport Protocol among the step S101, judge whether the S1 interface take place congested comprising: for the business of using Real-time Transport Protocol, (it is congested to judge whether the S1 interface has taken place for RTP Control Protocol, the RTCP) shake in (jitter) information by following RTP Control Protocol.
Judge the S1 interface accurately up and/or descending whether be in congestion state after, the available bandwidth that reduces described S1 interface in the step 103 specifically can comprise:
If judge the up congestion state that is in of S1 interface, then the ratio that the up available bandwidth of S1 interface is reduced at every turn is that the depression of order of d% is handled, it is that original bandwidth be multiply by a coefficient that depression of order is handled, such as original bandwidth is 100, coefficient is 80%, and then the available bandwidth behind the depression of order is 80;
If judge the descending congestion state that is in of S1 interface, then the ratio that the descending available bandwidth of S1 interface is reduced at every turn is that the depression of order of d% is handled.
Above-mentioned up and/or descending available bandwidth to the S1 interface that is in congestion state carries out depression of order to be handled, and promptly reduces the up of S1 interface and/or downlink transfer speed by changing modulation coding mode and code check, to alleviate the up and/or downlink congestion of S1 interface.
Can comprise initial available bandwidth of S1 interface of configuration before step S101, this initial available bandwidth is generally equal to maximum physical link bandwidth.
Whether the uplink and downlink that the above-mentioned detection method by present embodiment can detect the S1 interface accurately are in congestion state, and gradually reduce the up and/or descending available bandwidth of the S1 interface that is in congestion state respectively.
In further embodiment of this invention, the available bandwidth that passes through to reduce described S1 interface among the step S103, guarantee the service quality of delay sensitive business, also can comprise: after reducing the available bandwidth of described S1 interface, abandon the packet that does not satisfy service quality, to guarantee the service quality of delay sensitive business to the insensitive business of packet loss.
Different types of service has different QOS requirements, and is very high for the packet loss requirement such as ftp business, therefore can be by repeatedly retransmitting the integrality that guarantees data; The delay sensitive business is more paid close attention to for time delay and delay variation, for packet loss is insensitive on the contrary, such as speech business VoIP, interrupts it not being had much affect in 1 second, but time delay increases by 1 second or it is very big to exist delay variation to influence, and can cause voice quality that the people can't be accepted.
Congested when the appearance of S1 interface, professional time delay and shake can be subjected to very big influence, can guarantee the QOS requirement of delay sensitive business by the discarded part divided data.Reduce in S1 interface transmission rate under the situation of (being that available bandwidth reduces), the base station E-NodeB of LTE can be by abandoning the time delay quality of service requirement (comprising time delay and delay variation) that data guarantee the delay sensitive business.
Concrete, the base station E-NodeB of LTE can abandon not satisfying the packet of quality of service requirement in the insensitive business of packet loss (for example VoIP business) according to host-host protocol, such as, abandon long VoIP packet of stand-by period.The service quality of like this, follow-up packet to delay sensitive is just satisfied.
Present embodiment abandons data under the situation that S1 interface transmission rate reduces, guaranteed the time delay quality of service requirement of delay sensitive business.
Further, in further embodiment of this invention, also can comprise after the described step 103: whether the congestion state of judging the S1 interface is removed, if then increase current available bandwidth.Judge congestedly whether remove those skilled in the art according to judging whether in the previous embodiment that congested method occurring can realize.
If that judges the S1 interface has uply removed congestedly, then the ratio that the up available bandwidth of S1 interface is increased at every turn is that handle on the rank that rise of I%; If that judges the S1 interface has descendingly removed congestedly, then the ratio that the descending available bandwidth of S1 interface is increased at every turn is that handle on the rank that rise of I%.Handle with respect to the up and/or descending available bandwidth of S1 interface being done depression of order, can adopt and fall the strategy that rises slowly soon and the up and/or descending available bandwidth of S1 interface is done risen rank and handle, promptly I% is less than d%.
The method of present embodiment can be removed when congested at the S1 interface available bandwidth is returned to admissible maximum rating.
Further, in further embodiment of this invention, also can comprise after the described step 103: the available bandwidth priority allocation of the S1 interface after will reducing is given real time business.Concrete, give real time business with the available bandwidth priority allocation, promptly business is carried out the bandwidth resources reorganization, at first give real time business with allocated bandwidth, satisfy the demand of real time business.If also have remaining bandwidth, but mean allocation is given non-real-time service.
Reschedule according to amended bandwidth, such as the bandwidth before adjusting is 100, be revised as 80 after the adjustment, one has 3 business, and one in real time, 2 non real-times, real time business needs 60, non-real-time service needs 50, and then last distribution result is that real time business distributes 60, two non-real-time services respectively to distribute 10.
The method of present embodiment has preferentially guaranteed the quality of service of real time business, has optimized the entire system performance.
The embodiment of the invention also provides a kind of device 500 that guarantees QoS, and as shown in Figure 5, described device comprises: judging unit 501, and it is congested to be used to judge whether the S1 interface takes place; Processing unit 502, be used for when the judged result of described judging unit when being, by reducing the available bandwidth of described S1 interface, guarantee the service quality of delay sensitive business.Be understandable that this device can be the base station in the LTE system.
The available bandwidth of described S1 interface takes place to reduce when congested by judging the S1 interface in the device that present embodiment provides, and alleviates the congested of S1 interface, to guarantee QoS.
As shown in Figure 6, judging unit 501 can specifically comprise: first judging unit 601, be used for time delay by statistics S1 interface, and judge whether described S1 interface takes place congested; Second judging unit 602 is used for by the statistics queue length, judges whether described S1 interface takes place congested; Or the 3rd judging unit 603, be used for the transmitting-receiving bag time by real time transport protocol RTP, it is congested to judge whether the S1 interface takes place.
As shown in Figure 7, first judging unit 601 can comprise: computation subunit 701 is used for repeatedly calculating the time delay of S1 interface in a time cycle; Add up subelement 702, add up the average delay of S1 interface in this time cycle; Judgment sub-unit 703 is used for a comparison N continuous average delay value, judges whether a described N continuous average delay value is to increase progressively to change and increment and surpassed the congestion threshold value, and judged result is for being to judge that then described S1 interface generation is congested.
As shown in Figure 8, described computation subunit 701 comprises: first submodule 7011, be used to send the congestion detection request message that carries timestamp A, and receive the congestion detection response message that carries timestamp B, and the time C of the described congestion detection response message of recorder; Second submodule 7012 is used to calculate the proportionate relationship of B-A and C-B, by proportionate relationship and the two-way time delay C-A of B-A and C-B, obtains the descending time delay of the uplink time delay and/or the S1 interface of S1 interface.
Second judging unit 602 judges by the statistics queue length whether described S1 interface take place congested comprising: whether surpass the threshold value of setting by the length of judging data cached formation, judge whether described S1 interface takes place congested, be specifically as follows: whether the length of judging data cached formation surpasses the threshold value of setting, if it is congested that judged result, judges then that described S1 interface takes place for being.
The 3rd judging unit 603 judges by the transmitting-receiving bag time of Real-time Transport Protocol whether the S1 interface take place congested comprising: for the business of using Real-time Transport Protocol, by following shake (jitter) information in the rtcp protocol, it is congested to judge whether the S1 interface has taken place.
If judging unit 501 is judged the up congestion state that is in of S1 interface, then to the S1 interface the ratio that at every turn reduces of up available bandwidth be that the depression of order of d% is handled; If judging unit 501 is judged the descending congestion state that is in of S1 interface, then the ratio that the descending available bandwidth of S1 interface is reduced at every turn is that the depression of order of d% is handled.
Whether the uplink and downlink that the device of present embodiment can detect the S1 interface accurately are in congestion state, and gradually reduce the up and/or descending available bandwidth of the S1 interface that is in congestion state respectively.
As shown in Figure 9, in further embodiment of this invention, processing unit 502 further comprises: first processing unit 5021 is used to reduce the available bandwidth of described S1 interface; Second processing unit 5022 is used for abandoning the packet to the insensitive business of packet loss that does not satisfy service quality after described first processing unit reduces the available bandwidth of described S1 interface, to guarantee the service quality of delay sensitive business.
Congested when the appearance of S1 interface, professional time delay and shake can be subjected to very big influence, can guarantee the QOS requirement of delay sensitive business by the discarded part divided data.After first processing unit 5021 reduced the available bandwidth of described S1 interface, second processing unit 5022 abandoned the time delay quality of service requirement (comprising time delay and delay variation) that data guarantee the delay sensitive business.
Concrete, second processing unit 5022 can abandon not satisfying the packet of quality of service requirement in the insensitive business of packet loss (for example VoIP business) according to host-host protocol, such as, abandon long VoIP packet of stand-by period.The service quality of like this, follow-up packet to delay sensitive is just satisfied.
The device that present embodiment provides abandons data under the situation that S1 interface transmission rate reduces, guaranteed the time delay quality of service requirement of delay sensitive business.
In further embodiment of this invention, first judging unit 601, second judging unit 602 and the 3rd judging unit 603 of judging unit 501 also are used for: whether the congestion state of judging the S1 interface is removed, and judges congested whether the releasing.Those skilled in the art are according to judging whether in the previous embodiment that congested device occurring can realize.Described processing unit 502 also is used for: remove if described judging unit 501 is judged the congestion state of S1 interface, first processing unit 5021 of processing unit 502 can then increase current available bandwidth.
If judging unit 501 is judged the S1 interface has uply removed congestedly, 502 ratios that the up available bandwidth of S1 interface is increased at every turn of processing unit are that handle on the rank that rise of I%; If judging unit 501 is judged the S1 interface has descendingly removed congestedly, 502 ratios that the descending available bandwidth of S1 interface is increased at every turn of processing unit are that handle on the rank that rise of I%.Handle with respect to the up and/or descending available bandwidth of S1 interface being done depression of order, can adopt and fall the strategy that rises slowly soon and the up and/or descending available bandwidth of S1 interface is done risen rank and handle, promptly I% is less than d%.
The device of present embodiment can be removed when congested at the S1 interface available bandwidth is returned to admissible maximum rating.
As shown in figure 10, in another embodiment, guarantee that the device 500 of QoS also comprises: allocation units 503 are used for giving real time business with the available bandwidth priority allocation of the S1 interface after reducing.Concrete, give real time business with the available bandwidth priority allocation, promptly business is carried out the bandwidth resources reorganization, at first give real time business with allocated bandwidth, satisfy the demand of real time business.If also have remaining bandwidth, but mean allocation is given non-real-time service.
The method of present embodiment has preferentially guaranteed the quality of service of real time business, has optimized the entire system performance.
Above-described embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is the specific embodiment of the present invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1. a method that guarantees QoS is characterized in that, described method comprises:
It is congested to judge whether the S1 interface takes place;
If judged result is congested for the generation of S1 interface, then, guarantee the service quality of delay sensitive business by reducing the available bandwidth of described S1 interface.
2. the method for claim 1 is characterized in that, whether the described S1 of judgement interface take place congested comprising:
By the time delay of statistics S1 interface, judge whether described S1 interface takes place congested; Or,
Whether surpass the threshold value of setting by the length of judging data cached formation, judge whether described S1 interface takes place congested; Or,
For the business of using real time transport protocol RTP, by following the wobble information among the RTP Control Protocol RTCP, it is congested to judge whether the S1 interface takes place.
3. method as claimed in claim 2 is characterized in that, described time delay by statistics S1 interface judges whether described S1 interface take place congested comprising:
In a time cycle, repeatedly calculate the time delay of S1 interface, add up the average delay of S1 interface in this time cycle;
A N continuous average delay value is relatively judged whether a described N continuous average delay value is and is increased progressively variation and increment and surpassed the congestion threshold value, if judged result is for being to judge that then described S1 interface generation is congested.
4. method as claimed in claim 3 is characterized in that, the time delay of described calculating S1 interface comprises:
The congestion detection request message of timestamp A is carried in transmission, the congestion detection response message of timestamp B is carried in reception, and the time C of the described congestion detection response message of recorder, calculate the proportionate relationship of B-A and C-B, by proportionate relationship and the two-way time delay C-A of B-A and C-B, obtain the descending time delay of the uplink time delay and/or the S1 interface of S1 interface.
5. method as claimed in claim 4 is characterized in that, described congestion detection request message comprises the ECHO request message, and described congestion detection response message comprises the ECHO response message; Or,
Described congestion detection request message comprises the PING request message, and described congestion detection response message comprises the PING response message.
6. as each described method of claim 1 to 5, it is characterized in that described by reducing the available bandwidth of described S1 interface, the service quality of assurance delay sensitive business comprises:
After reducing the available bandwidth of described S1 interface, abandon the packet that does not satisfy service quality, to guarantee the service quality of delay sensitive business to the insensitive business of packet loss.
7. each described method of claim 1 to 5 is characterized in that described method also comprises:
Judge whether the congestion state of S1 interface is removed, if then increase current available bandwidth.
8. as each described method of claim 1 to 5, it is characterized in that described method also comprises: the available bandwidth priority allocation of the S1 interface after will reducing is given real time business.
9. a device that guarantees QoS is characterized in that, described device comprises:
Judging unit, it is congested to be used to judge whether the S1 interface takes place;
Processing unit, be used for when the judged result of described judging unit when being, by reducing the available bandwidth of described S1 interface, guarantee the service quality of delay sensitive business.
10. device as claimed in claim 9 is characterized in that, described judging unit comprises:
First judging unit is used for the time delay by statistics S1 interface, judges whether described S1 interface takes place congested;
Second judging unit is used for whether surpassing the threshold value of setting by the length of judging data cached formation, judges whether described S1 interface takes place congested; Or,
The 3rd judging unit is used for for the business of using RTP, and by following the wobble information among the RTCP, it is congested to judge whether the S1 interface has taken place.
11. device as claimed in claim 10 is characterized in that, described first judging unit comprises:
Computation subunit is used for repeatedly calculating the time delay of S1 interface in a time cycle;
Add up subelement, add up the average delay of S1 interface in this time cycle;
Judgment sub-unit is used for a comparison N continuous average delay value, judges whether a described N continuous average delay value is to increase progressively to change and increment and surpassed the congestion threshold value, and judged result is for being to judge that then described S1 interface generation is congested.
12. device as claimed in claim 11 is characterized in that, described computation subunit comprises:
First submodule is used to send the congestion detection request message that carries timestamp A, receives the congestion detection response message that carries timestamp B, and the time C of the described congestion detection response message of recorder;
Second submodule is used to calculate the proportionate relationship of B-A and C-B, by proportionate relationship and the two-way time delay C-A of B-A and C-B, obtains the descending time delay of the uplink time delay and/or the S1 interface of S1 interface.
13., it is characterized in that described processing unit comprises as each described device of claim 9 to 12:
First processing unit is used to reduce the available bandwidth of described S1 interface;
Second processing unit is used for abandoning the packet to the insensitive business of packet loss that does not satisfy service quality after described first processing unit reduces the available bandwidth of described S1 interface, to guarantee the service quality of delay sensitive business.
14. as each described device of claim 9 to 12, it is characterized in that described judging unit also is used for: whether the congestion state of judging the S1 interface is removed;
Described processing unit also is used for: if the congestion state of described judgment unit judges S1 interface is removed, then increase current available bandwidth.
15., it is characterized in that described device also comprises as each described device of claim 9 to 12:
Allocation units are used for giving real time business with the available bandwidth priority allocation of the S1 interface after reducing.
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| WO2014026326A1 (en) * | 2012-08-15 | 2014-02-20 | 华为技术有限公司 | Method and device for controlling data quality-of-service |
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| CN104270790A (en) * | 2014-10-23 | 2015-01-07 | 湘潭大学 | Congestion control method based on equitable distribution of communication channel |
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| CN109587728A (en) * | 2017-09-29 | 2019-04-05 | 上海诺基亚贝尔股份有限公司 | The method and apparatus of congestion detection |
| CN112997456A (en) * | 2018-11-14 | 2021-06-18 | 中兴通讯股份有限公司 | Method, apparatus and system for satisfying time control requirements in wireless communications |
| CN114866859A (en) * | 2022-05-10 | 2022-08-05 | 福州大学 | Real-time video transmission dynamic delay control system based on timestamp and packet loss detection |
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2009
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