CN100426928C - Method for ensuring service quality consistency of network each entity - Google Patents
Method for ensuring service quality consistency of network each entity Download PDFInfo
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- CN100426928C CN100426928C CNB2006100003151A CN200610000315A CN100426928C CN 100426928 C CN100426928 C CN 100426928C CN B2006100003151 A CNB2006100003151 A CN B2006100003151A CN 200610000315 A CN200610000315 A CN 200610000315A CN 100426928 C CN100426928 C CN 100426928C
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Abstract
The present invention discloses a method for guaranteeing the QoS consistency of each entity of a network, which comprises procedures that a routing area updating request or an intersystem switching request is initiated to an SGSN by a mobile station (MS), and the routing area update or the intersystem switch is carried out; whether the quality of service (QoS) of a base station system (BSS) is changed in the process of the routing area update or the intersystem switch of the MS is judged, if the QoS of the BSS is changed in the process of the routing area update or the intersystem switch of the MS, an entity in the network is informed of the QoS supported by the network by the SGSN, and otherwise, whether the QoS of a GGSN is changed in the process of the routing area update or the intersystem switch of the MS is judged, if the QoS of the GGSN is changed in the process of the routing area update or the intersystem switch of the MS, other entities in the network are informed of the changed QoS by the SGSN, and otherwise, the process is ended. When the network entities and/or the QoS of the network entities are changed, the QoS consistency of each entity of the network can still be guaranteed by the method of the present invention. The problem that the QoS of a user can not be guaranteed is avoided, and the unnecessary waste of a network resource is avoided.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to a kind of method that ensures service quality consistency of network each entity.
Background technology
At GPRS (GPRS, General Packet Radio Service) or universal mobile telecommunications system (UMTS, Universal Mobile Telecommunications System) in the network, Serving GPRS Support Node (SGSN, Serving GPRS Support Node) be packet domain core network network (CN, Core Network) capital equipment is mainly finished the route of packet data package and forwarding, encryption and authentication, session management, mobile management, Logical Link Management, ticket produces and functions such as output.The position of SGSN in mobile communications network as shown in Figure 1, SGSN uses different interface protocols to link to each other with miscellaneous equipment or network as we can see from the figure.Wherein, travelling carriage (MS, Mobile Station) can insert SGSN by wireless access network, different wireless access networks uses different interface protocols to link to each other with SGSN, for example MS can pass through base station system (BSS, Base StationSystem) use two kinds of interface protocols of Gb Interface and Iu interface to insert SGSN, also can pass through radio network controller (RNC, Radio Network Controller) use the Iu interface to insert SGSN, when MS used Gb Interface to be connected to SGSN by BSS, this network connected and is called the Gb pattern; When MS used the Iu interface to be connected to SGSN by BSS or RNC, this network connected and is called the Iu pattern.
In network entity, for example SGSN, Gateway GPRS Support Node (GGSN, Gateway GPRSSupport Node) and BSS etc., all preserve packet data protocol (PDP, Packet Data Protocol) context, preserved the information relevant in the PDP Context again, for example Packet Flow Id etc. with specific PDP.For the transmission of carrying out business datum must activate PDP Context, service quality (QoS, Quality of Service) just is meant the PDP suitable quality that service can be provided for the user that each network entity is consulted out in activation process, have only each network entity all to guarantee this service quality, the user could obtain due service in the transfer of data of finally carrying out.So can think that the service quality that the PDP Context of QoS definition can access should be present in each network entity such as MS, RNC, BSS and GGSN under state of activation, and each network entity should all guarantee this QoS, just can make the user obtain due service in transfer of data.
Usually, SGSN can pass through grouping information flow context (PFC, Packet Flow Context) flow process and BSS consults QoS, and it consults flow process referring to Fig. 2.In Packet Flow Context flow process, SGSN is the QoS that PDP Context distributes Packet Flow Id and Packet Flow Id correspondence, BSS can consult QoS according to self-ability, and in response message, notify SGSN, thus, SGSN just negotiates QoS with BSS, SGSN is notified to this QoS other network entities such as MS and GGSN then, so each network entity just uses same QoS, thereby guarantee the QoS unanimity of each network entity.
Yet travelling carriage is in moving process, and the route district can change, promptly Routing Area Update may take place, in addition, travelling carriage also may use dissimilar wireless access networks in moving process, switches between the system of Gb pattern to Iu pattern or Iu pattern thereby the Gb pattern takes place.No matter be to take place to switch between Routing Area Update or system, the QoS of network entity and/or network entity might change, thereby cause the QoS of each network entity inconsistent, and then may cause quality of services for users to can not get guaranteeing, also easily cause the unnecessary waste of Internet resources.
Below, the situation of change of the QoS of network entity in the handoff procedure and/or network entity is discussed respectively between the Routing Area Update process of prior art and system.At first, the Routing Area Update process is discussed, the Routing Area Update of MS under the Gb pattern only is discussed here.Routing Area Update has two kinds of situations under the Gb pattern: if new and old route district belongs to same SGSN, the Routing Area Update flow process (IntraSGSN Routeing Area Update Procedure) in the SGSN takes place then; If new and old route district belongs to different SGSN, the Routing Area Update flow process (Inter SGSN Routeing Area UpdateProcedure) between SGSN then takes place.
Referring to Fig. 3, Fig. 3 is an intra-SGSN routing area update schematic flow sheet under the Gb pattern in the prior art.At first, MS initiates Routing Area Update request (Routeing Area Update Request) message to SGSN, after can selecting the safety function (Security Functions) of carrying out mutual through some, if SGSN accepts the Routing Area Update request of MS, then send Routeing Area UpdateAccept message to MS, after MS receives this message, finish (RouteingArea Update Complete) message to SGSN transmission Routing Area Update and confirmed that so far the Routing Area Update flow process in the SGSN finishes under the Gb pattern.
In this Routing Area Update flow process, if BSS changes, for example MS moves to new BSS, the QoS of new BSS may be different with the QoS of network entities such as MS, SGSN in the network, and the inconsistent quality of services for users that easily causes of the QoS of network each entity can not get guaranteeing the waste unnecessary with Internet resources.
Referring to Fig. 4, Fig. 4 is an inter-SGSN routing area update schematic flow sheet under the Gb pattern in the prior art.Signaling 1, MS initiates the Routing Area Update request to new side SGSN; Signaling 2 is to signaling 4, new side SGSN sends SGSN Context Request message to old side SGSN, old side SGSN carries PDP Context at the QoS of old side request, signatory QoS and the QoS of use in SGSN Context Response message, send to new side SGSN, new side SGSN may consult the QoS that makes new advances according to self-ability; Signaling 5 is to signaling 6, and new side SGSN and GGSN consult new QoS; Signaling 7 is to signaling 12, and new side SGSN and attaching position register (HLR, Home Location Register) carry out the position renewal and confirm that the Routing Area Update flow process finishes.
Can see that from this Routing Area Update flow process BSS changes, the QoS of so new BSS may be different with the QoS of network entities such as MS, SGSN in the network; In addition, in signaling 5 to signaling 6, GGSN may consult to have reduced QoS according to self-ability, and in Update PDP ContextRequest message, bring new side SGSN, but new side SGSN with new QoS notice MS, so might cause GGSN, MS, new network entities such as BSS to use different QoS separately, therefore may not cause the QoS of network each entity inconsistent, not only quality of services for users can not get guaranteeing, also can cause the unnecessary waste of Internet resources.
As seen, no matter be Routing Area Update in the SGSN or the Routing Area Update between SGSN, if BSS changes in renewal process, so owing to do not have network entity and its negotiation QoS, so can cause the QoS of the QoS of new BSS and other network entity inconsistent; In addition, in the Routing Area Update process between SGSN, the situation that new side SGSN and GGSN consult to reduce QoS also can take place, the QoS that does not also have network entity to have reduced when this thing happens is notified to MS, so also can cause in the network QoS of each entity inconsistent, so quality of services for users can not get guaranteeing, has also caused the unnecessary waste of Internet resources.
Handoff procedure between following discussing system is only discussed here the system from the Iu pattern to the Gb pattern and is switched.Switch between this system two kinds of situations are also arranged: if Iu mode wireless Access Network uses identical SGSN with Gb mode wireless Access Network, the Iu pattern that then takes place in the SGSN arrives switching flow between the Gb modular system; If Iu mode wireless Access Network uses different SGSN with Gb mode wireless Access Network, the Iu pattern that then takes place between SGSN arrives switching flow between the Gb modular system.
Referring to Fig. 5, Fig. 5 is that the Iu pattern in the SGSN arrives switching flow schematic diagram between the Gb modular system in the prior art.At first, after determining to carry out to switch between system, MS can initiate the Routing Area Update request to SGSN, pass through SGSN and SRNS Serving Radio Network Subsystem (SRNS subsequently, Serving RadioNetwork Subsystem) after contextual information is mutual, discharge the Iu interface, and carry out the position at the mobile switching centre of the new and old both sides of circuit domain or VLR Visitor Location Register and upgrade, so just finished Routing Area Update, that is to say that having finished the Iu pattern switches between the system of Gb pattern, after switching was finished between system, SGSN can initiate the PFC flow process and BSS consults QoS.
Can see from above process, the Iu pattern is in switching flow between the system of Gb pattern in SGSN, though SGSN can initiate the PFC flow process and BSS consults QoS, if but BSS consults to have reduced QoS according to self-ability, other network entity is not made response to this so, so still may cause the QoS of each network entity inconsistent.
Referring to Fig. 6, Fig. 6 is that the Iu pattern between SGSN arrives switching flow schematic diagram between the system of Gb pattern in the prior art.At first, after determining to switch between system, MS initiates the Routing Area Update request to new side SGSN, new side SGSN is to old side SGSN request contexts information, old side SGSN carries the QoS of PDP Context in old side request to SRNS request contexts information and by SGSN Context Response message, the signatory QoS and the QoS of use send to new side SGSN, new subsequently side SGSN is according to the QoS of PDP Context in old side request, the QoS of signatory QoS and new side SGSN self-ability support negotiates a new QoS, send to GGSN by Update PDP Context Request message, new afterwards side SGSN carries out the position in circuit domain and upgrades and discharge the Iu interface, after the position was upgraded and finished, new side SGSN can initiate the PFC flow process and BSS consults QoS.
Can see similarly from above process, between this system in the switching flow, new side SGSN is after Update PDP Context Request message is carried QoS and sent to GGSN, GGSN may consult to reduce QoS according to self-ability, in Update PDP Context Response message, bring new side SGSN, the QoS after but new side SGSN further will not upgrade is notified to other network entity, so can cause the inconsistent of network each entity.In addition, after switching flow was finished between system, though new side SGSN can initiate the PFC flow process and BSS consults QoS, if BSS consults to have reduced QoS, the network others entity was not made response to this so, so can cause the QoS of each network entity inconsistent yet.
Comprehensive as can be known above-mentioned, no matter be to switch between Routing Area Update or system, all might be because the mobile variation that causes network entity and/or network entity QoS of travelling carriage, thereby may cause in the system QoS of network each entity inconsistent, therefore, quality of services for users may can not get guaranteeing, also easily cause the unnecessary waste of Internet resources.
Summary of the invention
In view of this, purpose of the present invention just provides a kind of method that ensures service quality consistency of network each entity, and uses this method can guarantee behind switching flow between Routing Area Update or system, and the QoS information of preserving on the network each entity is still consistent.
In order to realize the foregoing invention purpose, the invention provides a kind of method that ensures service quality consistency of network each entity, this method comprises:
A, mobile station MS are initiated Routing Area Update or intersystem handover request to Serving GPRS Support Node SGSN, and are carried out switching between Routing Area Update or system;
B, judge MS between Routing Area Update or system in the handoff procedure service quality QoS of base station system BSS whether change, if the QoS that SGSN supports network is notified to the entity in the network; Otherwise, execution in step C;
C, judge MS between Routing Area Update or system in the handoff procedure QoS of Gateway GPRS Support Node GGSN whether change, if SGSN is notified to MS, ending said process with the QoS that changes; Otherwise, ending said process.
Routing Area Update comprises described in the steps A: the Routing Area Update under Routing Area Update under the Gb pattern in the SGSN and the Gb pattern between SGSN.
Switch between system described in the steps A and comprise: the Iu pattern in the SGSN is switched between the Gb modular system to the Iu pattern between switching and SGSN between the Gb modular system.
The QoS of the BSS of base station system described in the step B changes and comprises: MS moves to new base station system BSS.
When MS moved to new base station system BSS, the entity that the QoS that SGSN described in the step B supports network is notified in the network comprised: SGSN initiation Packet Flow Context flow process is notified to new BSS with the QoS of network support.
The QoS of the BSS of base station system described in the step B changes and comprises: BSS and SGSN consult to reduce QoS.
When BSS and SGSN negotiation reduction QoS, the entity that the QoS that SGSN described in the step B supports network is notified in the network comprises: SGSN asks the QoS of BSS and SGSN negotiation reduction is notified to GGSN and MS by upgrade packet oriented protocol PDP request and modification PDP respectively.
The QoS of the GGSN of Gateway GPRS Support Node described in the step C changes and comprises: Gateway GPRS Support Node GGSN and Serving GPRS Support Node SGSN consult to reduce service quality QoS.
SGSN described in the step C is notified to MS with the QoS that changes and comprises: SGSN asks the QoS of GGSN and SGSN negotiation reduction is notified to MS by revising PDP.
After the QoS that SGSN will consult to reduce was notified to MS, MS did not accept the QoS of SGSN notice, and this method further comprises: the deexcitation flow process of MS initiation packet data protocol PDP.
Can see from above technical scheme, method provided by the invention has following beneficial effect: between Routing Area Update flow process or system in the handoff procedure, if BSS changes, then initiatively initiate Packet Flow Context flow process by SGSN, to new BSS notice QoS, thereby guarantee that new BSS is consistent with the QoS of other network entity in the network; In addition, if GGSN or BSS consult to have reduced QoS, then be responsible for new QoS is notified to MS by SGSN, thereby can realize no matter which QoS partly of network entity changes, can notify other network entity by the appropriate signaling flow process, thereby the QoS that guarantees each network entity remains unanimity, avoids quality of services for users to can not get guaranteeing, also avoids the unnecessary waste of Internet resources.
Description of drawings
Fig. 1 is the GPRS/UMTS networking diagram;
Fig. 2 is a BSS Packet Flow Context visioning procedure schematic diagram;
Fig. 3 is an intra-SGSN routing area update schematic flow sheet under the Gb pattern of prior art;
Fig. 4 is an inter-SGSN routing area update schematic flow sheet under the Gb pattern of prior art;
Fig. 5 is that the interior Iu pattern of the SGSN of prior art is to switching flow schematic diagram between the system of Gb pattern;
Fig. 6 be between the SGSN of prior art the Iu pattern to switching flow schematic diagram between the system of Gb pattern;
Fig. 7 is the operational flowchart that ensures service quality consistency of network each entity according to of the present invention;
Fig. 8 is according to intra-SGSN routing area update process operation flow chart under the Gb pattern of the present invention;
Fig. 9 is according to intra-SGSN routing area update schematic flow sheet under the Gb pattern of the present invention;
Figure 10 is according to inter-SGSN routing area update process operation flow chart under the Gb pattern of the present invention;
Figure 11 is according to inter-SGSN routing area update schematic flow sheet under the Gb pattern of the present invention;
Figure 12 is to switching flow schematic diagram between the system of Gb pattern according to Iu pattern in the SGSN of the present invention;
Figure 13 is to switching flow schematic diagram between the system of Gb pattern according to Iu pattern between SGSN of the present invention.
Embodiment
In order to make advantages and features of the invention clearer, the present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
Can know that from top description MS is when carrying out switching between Routing Area Update or system, the QoS that network entity may take place changes, thereby causes in the network QoS of each entity inconsistent.To this, the thinking that the present invention adopts is when the QoS that entity is arranged in the network changes, and by suitable message QoS is sent to other entity by SGSN, thereby guarantees the QoS unanimity of each entity in the network.Particularly, referring to Fig. 7, operate as follows:
Step 701, MS are initiated Routing Area Update or intersystem handover request to SGSN, and confirm to switch between laggard capable Routing Area Update or system obtaining;
Step 702, judge MS between Routing Area Update or system in the handoff procedure QoS of BSS whether change, if, execution in step 703; Otherwise, execution in step 704;
Step 703, SGSN are notified to entity in the network with QoS;
Step 704, judge whether the QoS of GGSN changes, if, execution in step 705; Otherwise, process ends;
The QoS that step 705, SGSN will change is notified to other entity in the network.
Below, the present invention is example with the service quality solution of Routing Area Update flow process under the Gb pattern and Iu pattern to the service quality solution of switching flow between the Gb modular system respectively, and how the QoS of each network entity in the switching flow between route district renewal process and system is consistent describes.
Routing Area Update flow process under embodiment one, the Gb pattern
Routing Area Update comprises Routing Area Update in two kinds of situation: SGSN and the Routing Area Update between SGSN under the Gb pattern.Both of these case is discussed respectively below.
The QoS solution of intra-SGSN routing area update flow process at first is discussed.In the prior art, if BSS changes in renewal process, then because SGSN does not initiate Packet Flow Context flow process to new BSS notice QoS, so caused the QoS of network each entity inconsistent.The present invention is by more increasing relevant signaling message in the new technological process, and when making MS and BSS all support Packet FlowContext flow process, SGSN initiates Packet Flow Context flow process to new BSS notice PacketFlow Id and corresponding QoS thereof; And if new BSS consults to have reduced QoS according to self-ability, then the SGSN QoS that is responsible for having consulted to reduce is notified to GGSN and MS, and concrete operating process and step are referring to Fig. 8:
Step 101: judge whether BSS changes in the intra-SGSN routing area update process, if, execution in step 102; Otherwise, ending said process;
When MS initiates Routing Area Update, can report some signs about BSS, if the sign of BSS has changed, SGSN just can know that MS moves to new BSS.
Step 102: judge whether MS and BSS all support Packet Flow Context flow process, if, execution in step 103-104; Otherwise, ending said process;
When the initial stage of networking BSS and SGSN connect, just determined whether BSS can support Packet Flow Context flow process, MS can carry the sign of self when SGSN initiates Routing Area Update in addition, and sign can show whether MS can support the PFC flow process.
Step 103:SGSN initiates Packet Flow Context flow process to new BSS notice PacketFlow Id and corresponding QoS thereof;
Step 104: judge whether BSS consults to have reduced QoS, if, execution in step 105; Otherwise, ending said process;
Step 105:SGSN is notified to GGSN and MS with the QoS that BSS has consulted to reduce.
Above method of operation can guarantee the QoS that each network entity still is consistent under BSS changes in the intra-SGSN routing area update flow process the situation.
Its concrete signaling process is referring to Fig. 9, and wherein signaling 5 to signaling 9 is a newly-increased signaling provided by the present invention:
Signaling 1:MS initiates Routing Area Update request (Routeing Area UpdateRequest) to SGSN;
Signaling 2: selectively carry out some safety functions (Security Functions) alternately;
Signaling 3:SGSN accepts the Routing Area Update request of MS, sends Routeing AreaUpdate Accept message to MS;
After signaling 4:MS finishes Routing Area Update, send Routing Area Update to SGSN and finish message, this signaling is selectable, belongs to the behavior of travelling carriage, has nothing related with ensuing signaling;
Signaling 5: variation has taken place in BSS in the intra-SGSN routing area update process under the Gb pattern, for example MS moves to new BSS, and when MS and new BSS support Packet Flow Context flow process, SGSN initiatively initiates BSS Packet Flow Context flow process, BSS notice Packet Flow Id and corresponding QoS thereof to new carry out signaling 6 then; If MS and BSS do not support Packet Flow Context flow process, then carry out this flow process, illustrate that SGSN can't carry out PacketFlow Context flow process;
Signaling 6:SGSN is after new BSS has notified QoS, if new BSS consults to have reduced QoS according to self-ability, then SGSN sends upgrading PDP request Update PDPContext Request message to GGSN, with the QoS behind the GGSN update notifications, continues to carry out signaling 7; If new BSS does not consult to reduce QoS, then can not carry out this flow process and following flow process;
Signaling 7:GGSN sends Update PDP Context Response message to confirm new QoS to SGSN:
Signaling 8:SGSN sends to MS and revises the QoS of PDP request Modify PDP Context Request message behind the MS update notifications;
Signaling 9: if the QoS after MS accept to upgrade then can send Modify PDPContext Accept message to SGSN, so far under the Gb pattern in the Routing Area Update flow process in the SGSN QoS of each network entity just can be consistent; The QoS after if MS does not accept to upgrade, MS will initiate the deexcitation flow process of PDP.
Can see that from above-mentioned signaling process the present invention is notified to each network entity by increasing signaling in the intra-SGSN routing area update flow process with the QoS that changes, thereby solves the inconsistent problem of each network entity QoS that BSS changes and causes.
The QoS solution of inter-SGSN routing area update flow process is discussed below.In the prior art, when the Routing Area Update flow process of carrying out between SGSN, BSS can change, and does not initiate the problem of Packet Flow Context flow process to the QoS of new BSS notice Packet Flow Id and correspondence thereof so SGSN can occur; In addition, GGSN also can occur and consult to have reduced QoS, but SGSN is not notified to new QoS the problem of MS.These problems all can cause the QoS of each network entity inconsistent.The present invention solves the inconsistent problem of each network entity QoS by increase the negotiation about QoS in the inter-SGSN routing area update flow process under the Gb pattern, and referring to Figure 10, specific operation process and step are as follows:
Step 201: judge whether MS and the BSS that has changed all support Packet Flow Context flow process, if, execution in step 202; Otherwise, execution in step 204;
Step 202: new side SGSN initiatively initiates BSS Packet Flow Context flow process to new side BSS notice QoS, if BSS consults to have reduced QoS, then execution in step 203;
Step 203: the new QoS of side SGSN behind the GGSN update notifications, GGSN and new side SGSN consult;
Step 204: judge whether QoS and PDP Context that new side SGSN and GGSN consult be consistent at the QoS of old side use, if not, execution in step 205; Otherwise, ending said process;
Step 205: the new QoS of side SGSN behind the MS update notifications.
The concrete signaling process of said process is referring to Figure 11, and wherein signaling 13 to signaling 17 is signalings that the present invention increases newly:
Signaling 1:MS initiates the Routing Area Update request to new side SGSN;
Signaling 13: if when MS and BSS support Packet Flow Context flow process, then new side SGSN initiatively initiates BSS Packet Flow Context flow process, BSS notice Packet FlowId and corresponding QoS thereof to new carry out signaling 14 and signaling 15 then; When if MS or BSS do not support Packet Flow Context flow process, then relatively through the QoS of signaling 6 side SGSN employing newly afterwards and the QoS that PDP Context uses at old side SGSN, if the two difference then directly enters signaling 16; If the two is identical, process ends then:
Variation has taken place to signaling 15:BSS in signaling 14, and MS and BSS support Packet FlowContext flow process, SGSN has initiated BSS Packet Flow Context flow process to new side BSS notice QoS, new side SGSN also needs the QoS behind the GGSN update notifications, so being exactly SGSN, these two signalings send Update PDP Context Request message to GGSN, QoS after notice GGSN upgrades, GGSN sends the new QoS of Update PDP Context Response message authentication to SGSN;
Signaling 16:MS or BSS do not support Packet Flow Context flow process, and through after the signaling 6, QoS that new side SGSN adopts and PDP Context are when the QoS of old side use is inconsistent, that is to say that GGSN consults to have reduced QoS, in other words in signaling 13, new BSS consults to have reduced QoS, and then SGSN need be to the QoS behind the MS update notifications, so signaling 16 is exactly the QoS of SGSN after MS sends Modify PDP Context Request message informing MS renewal;
Signaling 17: if the QoS after MS accepts to upgrade, MS sends Modify PDPContext Accept message to SGSN; The QoS after if MS does not accept to upgrade, then MS will initiate the deexcitation flow process of PDP.
Can see from above signaling, under Gb pattern provided by the invention in the inter-SGSN routing area update flow process, new side SGSN negotiates a new QoS according to PDP Context at the QoS that the QoS of old side request, signatory QoS and new side SGSN self support, and use this QoS to upgrade GGSN, GGSN can return the QoS that consults according to self-ability simultaneously, if the QoS of this negotiation and PDP Context are inconsistent at the QoS that old side SGSN uses, then SGSN is responsible for notifying MS new QoS by send ModifyPDP Context Request message to MS; In addition, if in new technological process more, variation has taken place in BSS, when MS and BSS support Packet Flow Context flow process, SGSN is by initiatively initiating Packet Flow Context flow process to new BSS notice QoS, if BSS consults to have reduced QoS, then SGSN is by sending Update PDP Context Request message to GGSN, be responsible for the QoS after notice GGSN upgrades, and be responsible for notifying MS new QoS by send Modify PDP ContextRequest message to MS.
Embodiment two, Iu pattern are to switching flow between the system of Gb pattern
The Iu pattern comprises also that to switching flow between the system of Gb pattern the Iu pattern in two kinds of situation: SGSN arrives switching flow between the Gb modular system to the Iu pattern between switching flow between the Gb modular system and SGSN.Both of these case is discussed respectively below.
The QoS solution of the interior Iu pattern of SGSN to switching flow between the Gb modular system at first is discussed.In the prior art, though SGSN can initiate the PFC flow process and BSS consults QoS, if BSS consults to have reduced QoS by the PFC flow process, other network entity is not made response to this so, so can cause the QoS of each network entity inconsistent.The present invention is by increasing relevant signaling message in switching flow, make SGSN that the QoS that BSS consults to reduce is notified to GGSN and MS, concrete signaling process is referring to Figure 12, wherein signaling 1 is the signaling process of prior art to signaling 15, and signaling 16 to signaling 19 is a newly-increased signaling provided by the present invention.Wherein, signaling 15 expression SGSN initiate the PFC flow process and BSS consults QoS, if at this moment BSS consults to have reduced QoS, then carry out signaling 16 and signaling 17, SGSN sends Update PDP Context Request message to GGSN, QoS after notice GGSN upgrades, GGSN sends Update PDP Context Response message to confirm new QoS to SGSN, SGSN further sends the QoS of Modify PDP Context Request message behind the MS update notifications to MS then, the QoS after if MS accepts to upgrade, then can send Modify PDP Context Accept message, otherwise MS will initiate the deexcitation flow process of PDP to SGSN.
By newly-increased several signalings like this, when the present invention just can be implemented in BSS and consults to reduce QoS, guarantee that by the QoS of SGSN behind GGSN and MS update notifications the QoS of network each entity is consistent.
Next, the Iu pattern between discussion SGSN is to the QoS solution of switching flow between the Gb modular system.In the prior art, after the QoS message that new side SGSN consults according to self-ability sends to GGSN, GGSN may consult to reduce QoS, but SGSN is not notified to MS with the QoS that upgrades, in addition, though new side SGSN can initiate the PFC flow process and BSS consults QoS, if BSS consults to have reduced QoS, other network entity is not made response to this so, so can cause the QoS of each network entity inconsistent.The present invention is by increasing relevant signaling process in switching flow, the QoS that SGSN will have been changed is notified to GGSN and MS, concrete signaling process is referring to Figure 13, and wherein signaling 1 is the signaling process of prior art to signaling 22, and signaling 23 to signaling 26 is a newly-increased signaling provided by the invention.Wherein, in signaling 10, new side SGSN at first hereinafter negotiates a new QoS at the QoS that the QoS of old side request, signatory QoS and new side SGSN self support according to PDP two, send to GGSN by Update PDP Context Request message, GGSN may consult to reduce QoS according to self-ability, and return this QoS in Update PDP Context Response message, new side SGSN adopts this QoS as the QoS that consults.Signaling 22 is illustrated in MS and BSS when all supporting the PFC flow process, SGSN initiatively initiates BSS Packet Flow Context flow process, to BSS notice Packet Flow Id and corresponding QoS thereof, if BSS consults to have reduced QoS, then SGSN sends Update PDP Context Request message (signaling 23) to GGSN, and further send Modify PDP Context Request message (signaling 25) to MS, with the QoS behind GGSN and MS update notifications.In addition, in signaling 22, when MS or BSS do not support the PFC flow process, need then to judge whether GGSN consults to have reduced QoS in signaling 10, if GGSN consults to have reduced QoS, then SGSN sends Modify PDP Context Request message (signaling 25) to notify the QoS after MS upgrades to MS.If the QoS after MS accepts to upgrade then send Modify PDP Context Accept message (signaling 26) to SGSN, otherwise MS will initiate the deexcitation flow process of PDP.
Can see that from top description the present invention is by newly-increased signaling message, when can be implemented in network entity and consulting to reduce QoS, the QoS that is responsible for having changed by SGSN is notified to other network entity, guarantees the QoS unanimity of each network entity.
Be example to switching flow between the system of Gb pattern only below with Routing Area Update flow process under the Gb pattern and Iu pattern, the method that ensures service quality consistency of network each entity provided by the present invention is had been described in detail, but method provided by the present invention can also be applied in other process that need guarantee service quality.
The above is preferred embodiment of the present invention only, is not in order to limit protection scope of the present invention.
Claims (10)
1, a kind of method that ensures service quality consistency of network each entity is characterized in that, this method comprises:
A, mobile station MS are initiated Routing Area Update or intersystem handover request to Serving GPRS Support Node SGSN, and are carried out switching between Routing Area Update or system;
B, judge MS between Routing Area Update or system in the handoff procedure service quality QoS of base station system BSS whether change, if the QoS that SGSN supports network is notified to the entity in the network; Otherwise, execution in step C;
C, judge MS between Routing Area Update or system in the handoff procedure QoS of Gateway GPRS Support Node GGSN whether change, if SGSN is notified to MS, ending said process with the QoS that changes; Otherwise, ending said process.
2, method according to claim 1 is characterized in that, Routing Area Update comprises described in the steps A:
Routing Area Update under Routing Area Update under the interface protocol Gb pattern in the SGSN and the Gb pattern between SGSN.
3, method according to claim 1 is characterized in that, switches between system described in the steps A to comprise:
Interface protocol Iu pattern in the SGSN is switched between the Gb modular system to the Iu pattern between switching and SGSN between the Gb modular system.
4, method according to claim 1 is characterized in that, the QoS of the BSS of base station system described in the step B changes and comprises:
MS moves to new base station system BSS.
5, method according to claim 4 is characterized in that, the entity that the QoS that SGSN described in the step B supports network is notified in the network comprises:
SGSN initiation packet information flow context Packet Flow Context flow process is notified to new BSS with the QoS of network support.
6, method according to claim 1 is characterized in that, the QoS of the BSS of base station system described in the step B changes and comprises:
BSS and SGSN consult to reduce QoS.
7, method according to claim 6 is characterized in that, the entity that the QoS that SGSN described in the step B supports network is notified in the network comprises:
SGSN asks the QoS of BSS and SGSN negotiation reduction is notified to GGSN and MS by upgrade packet oriented protocol PDP request and modification PDP respectively.
8, method according to claim 1 is characterized in that, the QoS of the GGSN of Gateway GPRS Support Node described in the step C changes and comprises:
Gateway GPRS Support Node GGSN and Serving GPRS Support Node SGSN consult to reduce service quality QoS.
9, method according to claim 8 is characterized in that, SGSN described in the step C is notified to MS with the QoS that changes and comprises:
SGSN asks the QoS of GGSN and SGSN negotiation reduction is notified to MS by revising PDP.
According to claim 7 or 9 described methods, it is characterized in that 10, after the QoS that SGSN will consult to reduce was notified to MS, MS did not accept the QoS of SGSN notice, this method further comprises:
The deexcitation flow process of MS initiation packet data protocol PDP.
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| US20020151312A1 (en) * | 2001-04-11 | 2002-10-17 | Alcatel | Method, telecommunication framework network and user equipment for provisioning of subscribed quality of service guarantees to subscribers of a network when they have to communicate by means of another network |
| WO2004029854A2 (en) * | 2002-09-27 | 2004-04-08 | Nokia Corporation | Enhanced qos control |
| US6728208B1 (en) * | 1998-03-19 | 2004-04-27 | Nokia Networks Oy | Method for controlling a quality of service in a mobile communications system |
| CN1625152A (en) * | 2003-12-05 | 2005-06-08 | 华为技术有限公司 | Method for securing quality of transmitted group data service |
| CN1705296A (en) * | 2004-05-28 | 2005-12-07 | 华为技术有限公司 | Data packet transmission method capable of guaranteeing service quality |
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| US6728208B1 (en) * | 1998-03-19 | 2004-04-27 | Nokia Networks Oy | Method for controlling a quality of service in a mobile communications system |
| US20020151312A1 (en) * | 2001-04-11 | 2002-10-17 | Alcatel | Method, telecommunication framework network and user equipment for provisioning of subscribed quality of service guarantees to subscribers of a network when they have to communicate by means of another network |
| WO2004029854A2 (en) * | 2002-09-27 | 2004-04-08 | Nokia Corporation | Enhanced qos control |
| CN1625152A (en) * | 2003-12-05 | 2005-06-08 | 华为技术有限公司 | Method for securing quality of transmitted group data service |
| CN1705296A (en) * | 2004-05-28 | 2005-12-07 | 华为技术有限公司 | Data packet transmission method capable of guaranteeing service quality |
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