CN1756232A - Method for adjusting QoS parameter - Google Patents
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- CN1756232A CN1756232A CNA200410081072XA CN200410081072A CN1756232A CN 1756232 A CN1756232 A CN 1756232A CN A200410081072X A CNA200410081072X A CN A200410081072XA CN 200410081072 A CN200410081072 A CN 200410081072A CN 1756232 A CN1756232 A CN 1756232A
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Abstract
The invention discloses a method for regulating the service quality parameters, which utilizes the PDP context modify process to reduce the QoS when the resource of mobile network is lacked, and increases the QoS parameter when the resource of node device is recovery. Said inventive method for automatically regulating the QoS according to the resource condition of mobile network can fully utilize present PDP context modify process while only requests the node device stores the unmodified QoS parameter and modified QoS parameter for deciding the following regulation of QoS, when its generates the PDP context modify process according to the self-condition of resource. Since the interface process and the information are avoided modified, the invention can be processed easily, while it can supply better network service quality, improve the satisfaction of users and increase the benefits of operators.
Description
Technical field
The present invention relates to the control technology of the Quality of Service in the communication system, be meant a kind of method of adjusting QoS parameter especially.
Background technology
Along with the combination of mobile communication technology and internet (Internet) technology, the use of mobile data services will be more and more widely.How providing reliable end-to-end QoS to guarantee to the user, is one of problem of being concerned about most of each operator.
Main three parts of dividing of QoS control are considered in the mobile network: user terminal, Access Network and core net.SGSN is the mobile network fringe node that core net links to each other with Access Network, and GGSN is the intercommunication node with the external IP network as the mobile network gateway.Connect the realization packet data bearers by packet data protocol content (PDP context) in the mobile network.When terminal (UE) is initiated the application layer business,, be mapped to the qos parameter of mobile network carrying, i.e. the qos parameter of PDP context connection according to the QoS demand that the application layer business is determined.The qos parameter of mobile network carrying PDP context mainly comprises: Maximum Bit Rate, transmission order, maximum SDU byte number, whether retransmit, the SDU error rate, transmit delay time, assurable bit rate or the like.For example: when the user initiates streaming media service, UE is according to the streaming media service characteristic, be mapped as the qos parameter that carries in network initiation PDP context activation request message, its parameter value is as follows: Maximum Bit Rate 128K, transmission order YES (needing the assurance order), maximum SDU byte number 300 bytes, re-transmission NO (not retransmitting) SDU error rate 10-2, transmission time-delay 100ms, assurable bit rate 100K ...
UE activates in the request message to the PDP context that network is initiated and carries qos parameter, send to SGSN, SGSN sends to GGSN with qos parameter by PDP context request to create message again, simultaneously SGSN is mapped to the qos parameter of Iu interface (interface between core net and the Access Network) with qos parameter, sends to the radio network controller (RNC) of Access Network by the wireless access load-bearing allocation request message.When resource can not satisfy the QoS of current request among UE, SGSN, the GGSN,, the qos parameter that this PDP context connects is made amendment by PDP context modification process.
According to prior art, UE, or network side GGSN, initiate to activate the PDPcontext flow process according to service needed, negotiable qos parameter between UE, SGSN, the GGSN in the activation process, for any PDP context that has activated, its qos parameter determines, all needs to preserve the current QoS parameter of the PDP context of each activation among UE, SGSN, the GGSN.
When the resource of UE, SGSN, GGSN can not satisfy PDP context and connects desired QoS,, its qos parameter is made amendment by PDP context modification process.Qos parameter is revised and also may be caused because of RNC, after reason RNC such as unreachable discharges the Iu interface and connects because of wireless connections interruption or user, or after discharging RAB RAB (RAB) connection, for background classes (background) and interactive class (interactive) business, can keep former PDP context does not make an amendment, but for stream class (streaming) and conversation class (conversational) business, SGSN or UE discharge because of the Iu interface or RAB release will be initiated PDP context modification process, and maximum bandwidth is reduced to 0.
PDP context modification process between UE and the SGSN is finished by revising PDP Context request (Modify PDP Context Request) and response, and the PDPcontext modification process between SGSN and the GGSN is finished by upgrading PDP Context request (Update PDP Context Request) and response.UE, SGSN, GGSN can initiate QoS and revise request, receive that one of QoS modification request can receive modification or refusal is revised.
For example: UE initiates PDP context and activates when asking, the maximum bandwidth that requires is 128K, if it is congested that the outlet of Internet appears in GGSN, can only support maximum bandwidth 32K, then GGSN will initiate PDP context modification process, send renewal PDP Context request message (UpdatePDP Context Request) to SGSN, carry amended qos parameter value in the message, be maximum bandwidth 32K, SGSN initiates to revise PDP Context request message (Modify PDP Context Request) to UE, acceptance or refusal response that SGSN returns according to UE send corresponding acceptance or the refusal response to GGSN.
UE, SGSN, GGSN consult qos parameter according to resource situation when activating PDP context, the PDP context to having activated makes amendment to qos parameter because of resource changes.Under the normal condition, each node can only reduce the qos parameter that initial user is asked because of inadequate resource, can not again the qos parameter that reduces be adjusted to the qos parameter that initial user is asked because of resource recovery.For example: the PDP context maximum bandwidth that certain has activated is 128K, SGSN during activated state is because the bandwidth resources deficiency, initiate PDP context modification process, maximum bandwidth is reduced to 32K, after a period of time, the SGSN bandwidth resources are no longer limited, but SGSN can initiatively not initiate PDP context modification process once more, maximum bandwidth is fallen and is 32K always, and therefore existing qos parameter method of adjustment can't satisfy user's quality of service requirements greatly.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of method of adjusting QoS parameter, make the node device in the mobile network when own resource is recovered, can improve QoS parameter, satisfy user's quality of service requirements greatly.
In order to achieve the above object, the invention provides a kind of method of adjusting QoS parameter, this method comprises:
When the node device in a. mobile Packet Based Network determines that self available resources is not enough, initiate PDP context modification process, reduce the current QoS parameter, and preserve and revise preceding, amended qos parameter, and will revise before qos parameter be designated as first qos parameter, amended qos parameter is designated as second qos parameter;
B. when described node device determines that self available resources increases, judge whether described second qos parameter of self preserving is consistent with the current QoS parameter, if unanimity then improves the current QoS parameter value, if not, process ends.
Node device described in the step a is initiated once or once above PDPcontext modification process according to the own resource situation, reduces qos parameter, and described first qos parameter is the qos parameter before the first revision.
Current QoS parameter after improving among the step b is no more than described first qos parameter.
Node device described in step a and the b is by regularly or detect own resource in real time and determine the whether not enough or increase of self available resources.
Described node device is UE, or is SGSN, or is GGSN.
Mobile network of the present invention is adjusted the method for QoS automatically according to resource situation, utilize existing P DP context modification process fully, only require that UE, SGSN, GGSN judge resource situation,, determine how to carry out QoS and adjust then according to the record of the qos parameter of preserving.Since do not need to revise interface flow process and message, easy to implement.Simultaneously, adjust QoS automatically according to resource situation, help for the user provides better network service quality, improve user's business impression and satisfaction, operator also can increase corresponding income.
Description of drawings
Fig. 1 is for realizing the schematic flow sheet of the inventive method;
Fig. 2 preserves the inter-process schematic flow sheet of qos parameter for SGSN.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Method of the present invention is that each node device determines how to adjust qos parameter according to own resource situation and self record as the qos parameter that initiator or recipient adjusted in the mobile Packet Based Network.Each node device in the mobile network comprises UE, SGSN and GGSN etc.
Under initial condition, after the mobile network node device utilizes PDP context to activate successfully, to negotiate an initial Q oS parameter, when the mobile network resource is sufficient, this initial Q oS parameter should be one less among UE request qos parameter of being asked and the signatory QoS of user, and when the mobile network inadequate resource, this initial Q oS parameter should be the qos parameter of being asked less than the signatory QoS of user or UE request.
After this UE/SGSN/GGSN changes because of resource situation own, after perhaps RNC initiates release of Iu interface or RAB release, will initiate PDP context modification process, and qos parameter is made amendment.These are revised mainly in two kinds of situation: a kind of is inadequate resource, is difficult to keep current QoS, needs to reduce qos parameter; A kind of is under the prerequisite that has reduced qos parameter, and resource recovery needs to improve qos parameter.The former is that present technology realizes, latter's key of the present invention just.For UE, need to distinguish the user and initiatively reduce QoS and UE because of inadequate resource reduces by two kinds of situations of QoS, initiatively reduce QoS for the user, then do not need follow-up dynamic adjustment.
Carry out the qos parameter adjustment for convenience, each node device in the mobile network can be preserved one or more QoS records according to own characteristic, so that how decision carries out QoS adjusts.The record that each node need be preserved can comprise three kinds, be respectively current use qos parameter, self adjust the initiator as QoS adjustment before qos parameter and adjust the back qos parameter.
Fig. 1 dynamically adjusts the schematic flow sheet of qos parameter for the node device in the mobile network because of change in resources, and wherein, node device is represented any one node device in the mobile network, as UE, SGSN or GGSN etc.
Referring to shown in Figure 1, realize that the concrete steps of the inventive method are as follows:
Step 101: when the node device in the mobile Packet Based Network determines that self available resources is not enough, initiate the PDPcontext modification process, reduce the current QoS parameter.
Step 102: before this node device is preserved and revised, amended qos parameter, and will revise preceding qos parameter and be designated as first qos parameter, amended qos parameter is designated as second qos parameter.
In principle, for this node device, if the own resource deficiency, it can initiate repeatedly PDP context modification process continuously, reduce qos parameter, therefore after finishing first revision, not enough again if this node device is found own resource, still can re-execute step 101, initiate the PDPcontext modification process once more, reduce the current QoS parameter, certainly, this moment, first qos parameter was the qos parameter before the first revision.
Step 103: when this node device determines that self available resources increases, judge whether described second qos parameter of self preserving is consistent with the current QoS parameter, if it is consistent, then improve the current QoS parameter value, and the current QoS parameter after improving is no more than first qos parameter, if not, process ends.
In step 103, determine whether described second qos parameter of self preserving is consistent with the current QoS parameter, be and determine after this node device is initiated PDP context modification process, whether to have other node device to initiate PDP context modification process, reduce the situation of current QoS parameter, if there is not other node device to initiate to reduce the situation of current QoS parameter, then this moment, this node device can improve the current QoS parameter.
If before execution in step 103, exist other node device to initiate PDP context modification process, reduce the situation of current QoS parameter, be that other node device changes the current QoS parameter into the 3rd qos parameter, so for this node device in the mobile network, need to upgrade the current QoS parameter, promptly equate with the 3rd qos parameter, different with second qos parameter, after this it at first can only initiate to reduce the process of current QoS parameter, and revise finish after, first qos parameter that this node device is preserved promptly equates with the 3rd qos parameter, second qos parameter is this amended qos parameter, and the current QoS parameter promptly equates with second qos parameter.Afterwards, if this node device is because self available resources when increasing, initiatively initiates to improve the process of current QoS parameter, promptly during execution in step 103, current QoS parameter after the raising is no more than first qos parameter, just the amended qos parameter of other node device.
Below need preserve qos parameter to each node device respectively, and each node is made the explanation of different disposal according to the parameter and the current own resource of preserving.
If it is Q1 that UE initiates to carry qos parameter in the PDP context activation request message, after PDPcontext successfully activated, the qos parameter through consulting to determine was Q0, and Q0 and Q1 can be identical or different.UE only need write down the Q0 after the final negotiation, and this is identical with prior art.After this, when UE determined that own resource is not enough, UE can initiate to reduce the modification process of qos parameter, when UE determines that own resource is recovered, initiated to improve the modification process of qos parameter again.
Fig. 2 preserves the inter-process flow process of qos parameter for SGSN.Referring to shown in Figure 2, SGSN needs to write down a plurality of qos parameter values according to different situations in the PDP context activation process, and its concrete steps are as follows:
Step 201:SGSN receives that the PDP context that UE initiates activates request, wherein comprises qos parameter Q1.
Step 202:SGSN judges according to the signatory QoS of user that obtains from attaching position register HLR in advance whether Q1 surpasses the signatory QoS of user, if, then be adjusted into Q2 according to signatory QoS, preserve Q2; If not, then do not need to adjust, preserve Q1.
Step 203:SGSN judge own resource whether be not enough to guarantee among Q1 and the Q2 less, if, then current QoS is adjusted into Q3 according to resource situation, preserve Q3, continue step 204 again; If not, with less among Q1 and the Q2, continue step 204 then as the current QoS parameter.
Step 204:SGSN initiates PDP context request to create to GGSN, wherein comprises the current QoS parameter, and this parameter may be Q1, Q2 or Q3.
Step 205:SGSN judges according to the response that GGSN returns whether GGSN adjusts qos parameter, if then successful qos parameter finally consulted in record, this qos parameter is designated as Q4; If not, finish.
Therefore, for this node of SGSN, its processing of making according to the record and the own resource situation of preservation can comprise following several situation:
(1) if do not have Q3 in the record that SGSN preserves, promptly the resource of SGSN can guarantee among Q1 and the Q2 lessly always, and current QoS is less among Q1 and the Q2.In this case, SGSN will initiate to reduce the modification process of QoS earlier according to resource situation, by flow processing shown in Figure 1.
(2) if having Q3 in the record that SGSN preserves, do not have Q4, then this situation belongs to the situation that QoS appearred adjusting because of inadequate resource in SGSN, does not reduce the situation of QoS because of inadequate resource but SGSN receives other node.In this case, SGSN can be according to the own resource situation, the modification process of initiating to reduce QoS or improving QoS, and to reducing QoS, by flow processing shown in Figure 1, to improving QoS, its QoS is no more than Q1 or Q2.
(3) if having Q3 and Q4 in the record that SGSN preserves, mean that then the situation of QoS appearred adjusting because of inadequate resource in SGSN, and SGSN receives that also other node reduces the situation of QoS because of inadequate resource.In this case, SGSN can initiate to reduce the modification process of QoS according to resource situation.
It is then fairly simple that GGSN preserves qos parameter.Receive the PDPcontext request to create of SGSN transmission as GGSN after, preserve the qos parameter that carries in the message, promptly may be Q1, Q2 or Q3.At this moment, during as if the GGSN inadequate resource, qos parameter can be adjusted into Q4, then preserve Q4.
Therefore, the record for GGSN preserves can comprise following several situation:
(1) if do not have Q4 in the record that GGSN preserves, then GGSN can initiate to reduce the modification process of QoS according to resource situation.
(2) if having Q4 in the record that GGSN preserves, then GGSN will initiate to reduce the modification process of QoS or raising QoS according to resource situation, and when improving QoS, its adjusted QoS is no more than the qos parameter in the PDP context request to create of self preserving, and promptly may be Q1, Q2 or Q3.
In addition, consider that frequent QoS adjustment will influence system stability, and increase signaling traffic load, so a timer can be set among the UE/SGSN/GGSN, after timing was overtime, node was judged the own resource situation, and QoS amendment record and the qos parameter preserved, determine whether to adjust qos parameter.
In a word, the above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (5)
1, a kind of method of adjusting QoS parameter is characterized in that, this method may further comprise the steps:
When the node device in a. mobile Packet Based Network determines that self available resources is not enough, initiate PDP context modification process, reduce the current QoS parameter, and preserve amended qos parameter, and amended qos parameter is designated as second qos parameter;
B. when described node device determines that self available resources increases, judge whether described second qos parameter of self preserving is consistent with the current QoS parameter, if unanimity then improves the current QoS parameter value, if not, process ends.
2, method according to claim 1, it is characterized in that, further comprise among the step a: the qos parameter before preserve revising, and the qos parameter before will revising is designated as first qos parameter, then the current QoS parameter after the raising is no more than described first qos parameter among the step b.
3, method according to claim 2, it is characterized in that, node device described in the step a is initiated once or once above PDP context modification process according to the own resource situation, reduces qos parameter, and described first qos parameter is the qos parameter before the first revision.
4, method according to claim 1 is characterized in that, node device described in step a and the b is by regularly or detect own resource in real time and determine the whether not enough or increase of self available resources.
5, method according to claim 1 is characterized in that, described node device is UE, or is SGSN, or is GGSN.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101247325B (en) * | 2007-02-14 | 2011-06-01 | 华为技术有限公司 | Method and system for adding new service |
| CN101237687B (en) * | 2007-01-31 | 2011-06-15 | 中国移动通信集团公司 | Method for automatic generation of network element deployment parameters |
| CN102238742A (en) * | 2010-05-05 | 2011-11-09 | 中兴通讯股份有限公司 | Resource admission control method and system |
| CN102256316A (en) * | 2010-05-20 | 2011-11-23 | 中兴通讯股份有限公司 | Resource and admission decision method and device |
| CN102413518A (en) * | 2010-09-26 | 2012-04-11 | 中国移动通信集团北京有限公司 | Processing method, device and system of mixed business flow |
| CN102769875A (en) * | 2012-07-05 | 2012-11-07 | 中兴通讯股份有限公司 | Service quality consultation method and device |
| CN102769873A (en) * | 2011-05-03 | 2012-11-07 | 中兴通讯股份有限公司 | Method and system for controlling resource admission |
| CN104012120A (en) * | 2011-12-30 | 2014-08-27 | 诺基亚公司 | Bearer configuration for background traffic |
| CN104685921A (en) * | 2012-08-31 | 2015-06-03 | 高通股份有限公司 | Optimistic quality of service set up |
| CN109995668A (en) * | 2018-01-02 | 2019-07-09 | 中国移动通信有限公司研究院 | Flow control methods and device, storage medium |
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| FI108192B (en) * | 1998-03-19 | 2001-11-30 | Nokia Networks Oy | A method and apparatus for controlling quality of service in a mobile communication system |
| FI107772B (en) * | 1998-12-16 | 2001-09-28 | Nokia Networks Oy | Method and system for limiting the quality of data transmission service |
| SE0004178D0 (en) * | 2000-11-14 | 2000-11-14 | Ericsson Telefon Ab L M | Network requested packet data protocol context activation |
| US7453801B2 (en) * | 2001-11-08 | 2008-11-18 | Qualcomm Incorporated | Admission control and resource allocation in a communication system supporting application flows having quality of service requirements |
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| CN101237687B (en) * | 2007-01-31 | 2011-06-15 | 中国移动通信集团公司 | Method for automatic generation of network element deployment parameters |
| CN101247325B (en) * | 2007-02-14 | 2011-06-01 | 华为技术有限公司 | Method and system for adding new service |
| CN102238742A (en) * | 2010-05-05 | 2011-11-09 | 中兴通讯股份有限公司 | Resource admission control method and system |
| WO2011137625A1 (en) * | 2010-05-05 | 2011-11-10 | 中兴通讯股份有限公司 | Method and system for resource admission control |
| CN102238742B (en) * | 2010-05-05 | 2016-03-30 | 中兴通讯股份有限公司 | Resource acceptance control method and system |
| CN102256316A (en) * | 2010-05-20 | 2011-11-23 | 中兴通讯股份有限公司 | Resource and admission decision method and device |
| WO2011143964A1 (en) * | 2010-05-20 | 2011-11-24 | 中兴通讯股份有限公司 | Policy decision method and apparatus for resources admission |
| CN102413518B (en) * | 2010-09-26 | 2014-09-10 | 中国移动通信集团北京有限公司 | Processing method, device and system of mixed business flow |
| CN102413518A (en) * | 2010-09-26 | 2012-04-11 | 中国移动通信集团北京有限公司 | Processing method, device and system of mixed business flow |
| CN102769873A (en) * | 2011-05-03 | 2012-11-07 | 中兴通讯股份有限公司 | Method and system for controlling resource admission |
| WO2012149833A1 (en) * | 2011-05-03 | 2012-11-08 | 中兴通讯股份有限公司 | Resource and admission control method and system |
| CN102769873B (en) * | 2011-05-03 | 2017-10-03 | 中兴通讯股份有限公司 | A kind of resource acceptance control method and system |
| CN104012120A (en) * | 2011-12-30 | 2014-08-27 | 诺基亚公司 | Bearer configuration for background traffic |
| CN102769875A (en) * | 2012-07-05 | 2012-11-07 | 中兴通讯股份有限公司 | Service quality consultation method and device |
| CN102769875B (en) * | 2012-07-05 | 2018-03-23 | 中兴通讯股份有限公司 | A kind of service quality consulting method and device |
| CN104685921A (en) * | 2012-08-31 | 2015-06-03 | 高通股份有限公司 | Optimistic quality of service set up |
| US10412618B2 (en) | 2012-08-31 | 2019-09-10 | Qualcomm Incorporated | Optimistic quality of service set up |
| CN109995668A (en) * | 2018-01-02 | 2019-07-09 | 中国移动通信有限公司研究院 | Flow control methods and device, storage medium |
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