CN1794836A - Method and network of regulating internal interface data path characteristics in radio access network - Google Patents

Method and network of regulating internal interface data path characteristics in radio access network Download PDF

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Publication number
CN1794836A
CN1794836A CN 200510092585 CN200510092585A CN1794836A CN 1794836 A CN1794836 A CN 1794836A CN 200510092585 CN200510092585 CN 200510092585 CN 200510092585 A CN200510092585 A CN 200510092585A CN 1794836 A CN1794836 A CN 1794836A
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data path
asn
information
revise
request
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CN100417254C (en
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吴建军
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CNB2005100925855A priority Critical patent/CN100417254C/en
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Priority to PCT/CN2006/002149 priority patent/WO2007022716A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H04W28/20—Negotiating bandwidth

Abstract

This invention discloses a method and a network for adjusting internal interface data property in a wireless access network including the following steps: A, a MSS sends information for requiring correcting dynamic service flow and carrying the flow information needed to be corrected to BS, B, BS informs the service ASN-GW to require for amending a first data channel carrying with the first data channel information in the request, C, the service ASN-GW informs anchor ASN-GW to ask for correcting a second data channel carrying with the information for correcting the second data channel, D, the anchor ASN-GW selects the corrected channel based on the information to send correlated response information.

Description

Internal interface data path characteristics method of adjustment and network in a kind of wireless access network
Technical field
The present invention relates to the communications field, relate in particular to internal interface data path characteristics method of adjustment and network in a kind of wireless access network.
Background technology
Along with the extensive use of the flourish and wireless network of internet service, general packet unlimited professional (GPRS), 3-G (Generation Three mobile communication system) (3G), micro-wave access to global intercommunication (WiMAX) and afterwards 3G wireless systems such as (B3G) obtained a large amount of application and concern.The increase of number of users and the increase of user's request provide new demand for wireless access network system: requirement can be supported big capacity, the multiple business that big data quantity and different service quality require.
Wireless access network is mainly finished provides business to provide Packet Service between network and the mobile subscriber to transmit or the function of route.Do not consider other internal units in the Access Network, we will adopt WiMAX network architecture system (technology provided by the present invention includes but not limited to the application in the WiMAX system) shown in Figure 1 when technical description subsequently.The functional interpretation of each network element among Fig. 1 is as follows:
Access service network (ASN): ASN is defined as the network function set that the wireless access service is provided for the WiMAX terminal, and ASN has comprised base station (BS) and access service network gateway (ASN-GW) network element.ASN mainly provides following function:
The function of BS:
-provide layer 2 (L2) of BS and mobile subscriber station (MSS) to be connected
The function of ASN-GW:
-for MSS provide the layer 3 (L3) information relaying (Relay) function (as IP address assignment)
-RRM
Connectivity serving network (CSN): CSN is defined as to the WiMAX terminal IP is provided Connection Service.CSN mainly provides following function:
-ASN is equivalent to the home agent (HA) in the mobile IP technology to the tunnel of CSN
-WiMAX user's charging and the clearing between the operator
Tunnel under the-roaming condition between the CSN
Switching between the-ASN
MSS:MSS is a mobile subscriber equipment, and the user uses this devices accessing WiMAX network.
From data surface, the grouping busihess data of descending MSS newspaper from the HA of CSN by the Interface R3 between the ASN-GW HA and the ASN (being referred to as anchor ASN-GW), be sent among the ASN, and send on the MSS through the R6 interface between inner ASN-GW of ASN and the BS and the R1 interface between BS and the MSS data MSS by ASN-GW.If the ASN-GW (being referred to as to serve ASN-GW) of the BS that ASN-GW that links to each other with HA among the CSN and control MSS insert is not simultaneously, the grouping busihess data of descending MSS newspaper from the HA of CSN by the Interface R3 between the ASN-GW HA and the ASN, be sent among the ASN, and send on the MSS through the R6 interface between Interface R4, ASN-GW and the BS between inner ASN-GW of ASN and the ASN-GW and the R1 interface between BS and the MSS data MSS by ASN-GW.Upstream data then is delivered to the CSN along opposite path from MSS and reaches end subscriber.As mentioned above, the data path that corresponding uplink and downlink is all arranged for each Business Stream of each MSS in the interface of ASN inside, these all can require according to the service quality (QoS) of each Business Stream when each Business Stream is set up and the employing mode of data path is set up.When this service ending, when just Business Stream is ended, just need to discharge corresponding data path.
But carry out in the process in business, because the change of the demand of upper layer application or network characteristic, Internet resources operating position, all will cause the change of dynamic traffic characteristics (such as bandwidth, delay requirement, shake and Business Stream RM, data path self characteristics or the like), so just need to adjust data path characteristics corresponding on the ASN internal interface (comprise the data path self characteristics and to the support of the characteristic changing of its institute's loaded service stream).
For foundation and the release of supporting data path, prior art has defined following primitive and has been used for R6 path between BS and ASN-GW, the R4 path between the ASN-GW.
Message primitive From-＞To Message content
Data Path Establishment Request (data path is set up request) BS<->ASN GW； ASN-GW<->ASN GW The MSS sign, one group of { session identification, data path information is in order to discern the classified information of this Business Stream } that need set up
Data Path Establishment Response (data path is set up response) ASNGW<->BS； ASN-GW<->ASN GW The MSS sign, one group of { session identification, data path information is in order to discern the classified information of this Business Stream } that need set up
Data Path Establishment Ack (data path is set up and confirmed) BS<->ASN GW； ASN-GW<->ASN GW The MSS sign, one sets up upright good { session identification }
Data Path Release Request (data path discharges request) BS<->ASN GW； ASN-GW<->ASN GW The MSS sign, one group of { session identification } that need discharge data path
Data Path Release Response (data path discharges response) ASN GW<->BS； ASN-GW<->ASN GW The MSS sign, one group of { session identification } that need discharge data path
Wherein Data Path Establishment_REQ is the service channel that is used for setting up one group of unidirectional MSS, is used for the receiving terminal of notification message identifies the MSS session receiving packet datagrams (according to the classified information Classification and Identification of Business Stream) back this datagram to be forwarded to the transmitting terminal of this message according to the path of appointment.
In like manner Data Path Establishment_Response is after receiving data path foundation request, be used for setting up one group of reverse MSS service channel, be used for notifying the receiving terminal of Data Path Establishment_Response message identifies the MSS session receiving packet datagrams (according to the classified information Classification and Identification of Business Stream) back this datagram to be forwarded to the transmitting terminal of this message according to the path of appointment.
At last, confirm that by Data Path Establishment Ack message whole data path sets up finishing of process, comprise in the message and set up good session identification.
In the data path dispose procedure, Data Path Release_REQ is the service channel that is used for discharging one group of unidirectional MSS.
In like manner Data Path Release Response is after receiving data path release request, is used for discharging the service channel of one group of reverse MSS.
The mechanism that prior art only provides a kind of data path to set up and discharge, when traffic characteristics changes, in order to support this variation, just can only discharge corresponding data path on the ASN internal interface earlier by prior art, and then rebulid data path according to new traffic characteristics.Though this way is fine, but interacting message increases, and the release of data path is set up again, and can't to indicate be modification for same business, this business will be become the end of a business and the increase of another one new business by the BS of ASN inside or ASN-GW misunderstanding, the neutral gear that data path discharges and sets up occurs, the situation that service disconnection and datagram are lost can occur like this.
Summary of the invention
The invention provides when traffic characteristics changes, non-interrupting service is at the method and the network of ASN internal data way characteristic adjustment.Exist in the prior art in data path foundation and the release in order to solve, the neutral gear that data path discharges and sets up occurs, the problem that service disconnection and datagram are lost occurs.
The inventive method comprises:
The method that internal interface data path characteristics is adjusted in a kind of wireless access network is characterized in that, may further comprise the steps:
A, mobile subscriber station (MSS) are initiated dynamic service flow to serving BS (BS) and are revised solicited message, carry the dynamic service stream information that needs modification;
First data path is revised in B, BS notification service Access Service Network Gateway (ASN-GW) request, revises in the request at first data path, carries the first data path information that need revise;
C, service ASN-GW notice anchor ASN-GW (ANCHOR ASN-GW) ask to revise second data path, revise in the request at second data path, carry the second data path information that needs modification;
The second data path information that D, anchor ASN-GW revise according to described needs is selected the data path of modification, and sends relevant response information.
Among the described step D, described anchor ASN-GW sends second data path to service ASN-GW and revises response message, second data path information and the result that the request of carrying is revised.
Described method also comprises step:
E, service ASN-GW send first data path to BS and revise response message, second data path information and the result that the request of carrying is revised;
F, BS send dynamic service flow to MSS and revise response message, carry dynamic service flow and revise request results.
Described method also comprises step:
G, MSS send acknowledge message to BS;
H, BS send first data path to service ASN-GW and revise acknowledge message;
I, service ASN-GW revise acknowledge message to anchor ASN-GW second data path.
Among the described step B, the described first data path information that needs modification is that BS can satisfy the some or all of data path information that the MSS dynamic service flow is revised the request correspondence.
Among the described step B, comprise that also BS judges its dynamic service flow that whether can satisfy MSS modification request,, then enter step C if can satisfy, otherwise, enter step:
B1, send the refusal dynamic service flow to MSS and revise message.
Among the described step C, the described second data path information that needs modification is the some or all of data path information that service ASN-GW can satisfy the first data path information correspondence of BS needs modification.
Among the described step C, comprise that also service ASN-GW judges its first data path that whether can satisfy BS modification request,, then enter step D if can satisfy, otherwise, enter step:
C1, send refusal first data path to BS and revise message.
Among the described step B, also comprise:
After BS received dynamic service flow modification request, query resource management logic network element obtained the data path information that can be accepted modification.
Among the described step B, the described first data path information is the data path that can be accepted to revise by BS, service ASN-GW and anchor ASN-GW.
The described first data path information is identical with the second data path information.
Among described step B and the C, described first, second data path information includes the session identification of one or more Business Stream that need revise and the parameter that needs are revised.
Described parameter comprises:
The service quality QoS information of data path characteristics and/or support.
Described data path comprises downlink data path and upstream data path.
The method that internal interface data path characteristics is adjusted in a kind of wireless access network is characterized in that, may further comprise the steps:
A, anchor ASN-GW send first data path to service ASN-GW and revise request, carry first data path and revise information;
B, service ASN-GW send second data path to BS and revise request, carry second data path and revise information;
C, BS send dynamic service flow to MSS and revise request, carry the Business Stream information that needs modification;
The Business Stream information that D, MSS revise according to described needs is revised corresponding business stream, and returns dynamic service flow and revise response message.
Described method also comprises step:
E, BS send second data path to service ASN-GW and revise response message, second data path information and the result that the request of carrying is revised;
F, service ASN-GW send first data path to anchor ASN-GW and revise response message, second data path information and the result that the request of carrying is revised.
Described method also comprises step:
G, anchor ASN-GW send first data path to service ASN-GW and revise acknowledge message;
H, service ASN-GW send second data path to BS and revise acknowledge message;
I, BS send dynamic service flow to MSS and revise acknowledge message.
Among the described step B, the described first data path information that needs modification is the some or all of logarithmic data path information that service ASN-GW can satisfy the first data path information correspondence of anchor ASN-GW needs modification.
Among the described step B, comprise that also service ASN-GW judges its first data path that whether can satisfy anchor ASN-GW modification request,, then enter step C if can satisfy, otherwise, enter step:
B1, send refusal first data path to anchor ASN-GW and revise message.
Among the described step C, the described second data path information that needs modification is that BS can satisfy the corresponding some or all of data path information of service ASN-GW dynamic service flow modification request.
Among the described step C, comprise also BS judges whether it can satisfy dynamic service flow modification request of service ASN-GW, if can satisfy, then enters step D, otherwise, enter step:
C1, send the refusal dynamic service flow to service ASN-GW and revise message.
Among described step B and the C, described first, second data path information includes the session identification of the Business Stream that one or more needs revise and the parameter of needs modification.
In the described steps A, also comprise step:
Anchor ASN-GW query resource management logic network element obtains the data path information that can be accepted modification.
In the described steps A, the described first data path information, be can serviced ASN-GW and BS accepts to revise data path information.
The described first data path information is identical with the second data path information.
Among described step B and the C, described first, second data path information includes the session identification of one or more Business Stream that need revise and the parameter that needs are revised.
Described parameter comprises:
The service quality QoS information of data path characteristics and/or support.
Described data path comprises downlink data path and upstream data path.
The method that internal interface data path characteristics is adjusted in a kind of wireless access network is characterized in that, may further comprise the steps:
A, mobile subscriber station (MSS) are initiated dynamic service flow to serving BS (BS) and are revised solicited message, carry the dynamic service stream information that needs modification;
First data path is revised in B, BS notification service Access Service Network Gateway (ASN-GW) request, revises in the request at first data path, carries the first data path information that need revise;
The first data path information that C, service ASN-GW revise according to described needs is selected the data path of modification, and sends relevant response information.
The method that internal interface data path characteristics is adjusted in a kind of wireless access network is characterized in that, may further comprise the steps:
A, service ASN-GW send first data path to BS and revise request, carry first data path and revise information;
B, BS send dynamic service flow to MSS and revise request, carry the Business Stream information that needs modification;
The Business Stream information that C, MSS revise according to described needs is revised corresponding business stream, and returns dynamic service flow and revise response message.
A kind of Radio Access Network comprises MSS, is used for the BS that MSS inserts, and the service ASN-GW and the anchor ASN-GW of data path is provided, and it is characterized in that:
Described MSS is provided with dynamic service flow and revises request transmitting unit, is used for sending dynamic service flow to BS and revises request, carries the dynamic service stream information that need revise;
Described BS is provided with first data path and revises request transmitting unit, is used for revising request to service ASN-GW transmission ground first data path, carries the first data path information that needs modification;
Described service ASN-GW is provided with second data path and revises request transmitting unit, is used for sending second data path to anchor ASN-GW and revises request, carries the second data path information that needs modification.
Described network also comprises the resource management logical ne, the storage networking resource information, and it accepts the Query Information that BS sends, and returns Query Result.
A kind of Radio Access Network comprises MSS, is used for the BS that MSS inserts, and the service ASN-GW and the anchor ASN-GW of data path is provided, and it is characterized in that:
Described anchor ASN-GW is provided with first data path and revises request transmitting unit, is used for sending first data path to described service ASN-GW and revises request, carries first data path and revises information;
Described service ASN-GW is provided with second data path and revises request transmitting unit, is used for sending second data path to described BS and revises request, carries second data path and revises information;
Described BS is provided with dynamic service flow and revises request transmitting unit, is used for sending dynamic service flow to MSS and revises request, carries the Business Stream information that need revise.
Described network also comprises the resource management logical ne, the storage networking resource information, and it accepts the Query Information that anchor ASN-GW sends, and returns Query Result.
Beneficial effect of the present invention is as follows:
When the present invention program has solved the traffic characteristics adjustment, under the situation of non-interrupting service stream, realize the problem that the dynamic service flow data path is adjusted.Scheme is simple, is easy to realize.
Description of drawings
Fig. 1 is a WiMAX network architecture architectural schematic in the prior art;
Fig. 2 is a schematic network structure of the present invention;
Fig. 3 is another schematic network structure of the present invention;
Fig. 4 is the schematic flow sheet of the embodiment of the invention 1;
Fig. 5 is the schematic network structure of the embodiment of the invention 1 correspondence;
Fig. 6 is the schematic flow sheet of the embodiment of the invention 2;
Fig. 7 is the schematic network structure of the embodiment of the invention 2 correspondences.
Embodiment
Below in conjunction with Figure of description the specific embodiment of the present invention is described.
The initiator's who adjusts at traffic characteristics difference, we have proposed the processing method that traffic characteristics that traffic characteristics adjustment that the MSS side initiates and network side initiate is adjusted.As shown in Figure 2, have only ASN-GW in the network, and do not have anchor ASN-GW, then have service ASN-GW and anchor ASN-GW in the network shown in Figure 3 simultaneously.In these processing methods, mainly be to describe anchor ASN-GW and serve the situation that ASN-GW is not together, situation promptly shown in Figure 3; And network shown in Figure 2 can be regarded the special case of network shown in Figure 3 as: under situation shown in Figure 2, the processing procedure between anchor ASN-GW and the service ASN-GW is all ignored.
Scheme one: adjust processing method for the traffic characteristics that the MSS side is initiated:
S11, MSS initiate dynamic service flow modify request messages (DSC-REQ) to BS, in the described dynamic service flow modify request messages (DSC-REQ), carry the dynamic service stream information that needs modification; BS will send dynamic service flow and revise reception message (DSC-RVD) to MSS, and expression BS has received request message.If BS determines to satisfy the modification request of MSS, then carry out S12, otherwise carry out S13;
S12, BS directly send response message (DSC-RSP) to MSS, point out that dynamic service flow modification message is rejected.MSS sends acknowledge message (DSC-ACK) message and gives BS.
If the request of BS decision-making decision all modifications all is rejected, then whole process finishes.Otherwise BS revises acknowledge message (Data Path Modification Ack) notification service ASN-GW by data path.
If the request of service ASN-GW decision-making decision all modifications all is rejected, then whole process leaves it at that.Otherwise service ASN-GW revises acknowledge message (Data Path ModificationAck) notice anchor ASN-GW by data path, and whole process leaves it at that.
If S13 BS determines to satisfy the some or all of modification request of MSS, then initiate data path modify request messages (Data Path Modification Request) to service ASN-GW, the session identification that has comprised the Business Stream of needs modifications in this message, other information of parameter of need revising and the data path that may revise, these information the insides are clear and definite, and BS determines that satisfiable those paths are revised solicited messages.Be used for applying for revising descending (from service ASN-GW to the BS) data path between BS and the service ASN-GW, also comprise the information of the upstream data passage of needs modification simultaneously.
Whether S14, this ASN-GW satisfy the modification request of this MSS according to the requirement decision of resource situation and request, if the requirement of all sessions is not satisfied, revising at the data path of giving BS so indicates all modifications request all to be rejected in the response message (Data Path Modification Response), carry out S12, otherwise continue.
S15, service ASN-GW select and can satisfy path and revise the session of request and respective via information and classified information (these information the insides have clearly comprised service ASN-GW and determined that satisfiable those paths revise solicited messages) and send on the anchor ASN-GW by data path modify request messages (Data Path ModificationRequest), be used for applying for revising descending (from anchor ASN-GW to the service ASN-GW) data path between service ASN-GW and the anchor ASN-GW, also comprise the information of the upstream data passage of needs modification simultaneously.
Whether anchor ASN-GW satisfies the modification request of this MSS according to the requirement of resource situation and request decision, if the requirement of all sessions is not satisfied, carries out S16 so; Otherwise anchor ASN-GW revises the session identification that indication can be accepted to revise in the response message (Data Path Modification Response) at the data path of giving service ASN-GW, the downlink data path is revised information and result, and the information of up (from serving ASN-GW) data path to anchor ASN-GW, service ASN-GW receives receiving information according to anchor ASN-GW after this message, revise the session identification that indication can be accepted to revise in the response message (Data PathModification Response) at the data path of giving BS, the downlink data path is revised information and result, and up (from BS to service ASN-GW) information of data path, carry out S17.
The request of indication all modifications all is rejected in the response message (Data PathModification Response) if S16 revises at the data path of giving service ASN-GW, after service ASN-GW receives this message, the request of indication all modifications all is rejected in giving the data path modification response message (Data Path Modification Response) of BS, carries out S12.
S17, BS directly send response message (DSC-RSP) to MSS, point out that the dynamic service flow modification of correspondence is asked successfully.MSS sends acknowledge message (DSC-ACK) and gives BS.BS is according to the affirmation message of success/failure, the session service traffic identifier that success is confirmed is revised acknowledge message (Data PathModification Ack) notification service ASN-GW by data path, service ASN-GW revises acknowledge message (Data Path Modification Ack) notice anchor ASN-GW by data path, and whole process leaves it at that.
In the scheme of embodiment 1, BS, service ASN-GW and anchor ASN-GW have the ability of judging own resource, therefore behind the related news that network element sends on receiving, the ability of can carrying out is judged, the modification request that will meet own resource sends to next network element, will not meet the modification request refusal of self-ability.
Also can adopt another to judge the method for own resource in this scheme, promptly after BS receives the dynamic service flow modification solicited message of MSS transmission, by mutual with a resource management logical ne, obtain to agree the data path of request modification, and then to service ASN-GW and anchor ASN-GW transmission request, in this case, request all can be accepted, (just can be clear and definite when BS and resource management logical ne are mutual because not received, serve ASN-GW and anchor ASN-GW) and need not issue again.This scheme can be simplified handling process.
Embodiment 1:
Embodiment 1 is a specific implementation of scheme one, as shown in Figure 4, is the schematic flow sheet of the embodiment of the invention 2, and as seen from the figure, the present invention mainly may further comprise the steps:
S111, MSS initiate dynamic service flow modify request messages (DSC-REQ) to BS.
S112, BS will send dynamic service flow and revise reception message (DSC-RVD) to MSS, and expression BS has received request message.
S113, BS determine to satisfy the modification request of MSS, then initiate data path modify request messages (Data Path Modification Request) to service ASN-GW, the session identification that has comprised the Business Stream of needs modifications in this message, other information of the parameter that need revise and the data path that may revise.Be used for applying for revising descending (from service ASN-GW to the BS) data path between BS and the service ASN-GW, the present embodiment hypothesis is revised certain downlink data channel characteristic.
S114, service ASN-GW judge the modification request of satisfying this MSS according to the requirement of resource situation and request, (Data Path Modification Request) sends on the anchor ASN-GW by the data path modify request messages, is used for applying for revising descending (from anchor ASN-GW to the serving ASN-GW) data path between service ASN-GW and the anchor ASN-GW.
S115, anchor ASN-GW judge the modification request of satisfying this MSS according to the requirement of resource situation and request, data path modification result that anchor ASN-GW revises the session identification that indication can be accepted to revise in the response message (Data PathModification Response) at the data path of giving service ASN-GW, descending (from anchor ASN-GW to service ASN-GW).
S116, service ASN-GW receive receiving information according to anchor ASN-GW after this message, revise the session identification that indication can be accepted to revise in the response message (Data Path Modification Response) at the data path of giving BS, descending (from anchor ASN-GW to service ASN-GW) data path modification result.
S117, BS directly send response message (DSC-RSP) to MSS, point out that the dynamic service flow modification of correspondence is asked successfully.
S118, MSS send acknowledge message (DSC-ACK) and give BS, and notice BS adjusts successfully, in the BS side, revise content and come into force.
S119, BS revise acknowledge message (Data Path Modification Ack) notification service ASN-GW by data path, revise content and come into force on service ASN-GW.
S1110, service ASN-GW revise acknowledge message (Data Path ModificationAck) notice anchor ASN-GW by data path, revise content and come into force on anchor ASN-GW, and whole process leaves it at that.
The message primitive definition that relates to
Message primitive From-＞To Message content
Data Path Modification Request (data path is set up request) BS<->ASN GW； ASN-GW<->ASN GW The MSS sign, one group of { the session identification that need revise, data path information, in order to discern the classified information of this Business Stream, session QoS information }
Data Path Modification Response (data path is set up response) ASN GW<->BS； ASN-GW<->ASN GW The MSS sign, one group of { the session identification that need revise, data path information, in order to discern the classified information of this Business Stream, session QoS information }
Data Path Modification Ack (data path is set up and confirmed) BS<->ASN GW； ASN-GW<->ASN GW The MSS sign, { session identification } that a group acknowledge is revised
As shown in Figure 5, be based on the schematic network structure of the inventive method, as seen from the figure, this network configuration mainly comprises MSS, is used for the BS that MSS inserts, and the service ASN-GW and the anchor ASN-GW of data path is provided;
Described MSS is provided with dynamic service flow and revises request transmitting unit, is used for sending dynamic service flow to BS and revises request, carries the dynamic service stream information that need revise;
Described BS is provided with first data path and revises request transmitting unit, is used for revising request to service ASN-GW transmission ground first data path, carries the first data path information that needs modification;
Described service ASN-GW is provided with second data path and revises request transmitting unit, is used for sending second data path to anchor ASN-GW and revises request, carries the second data path information that needs modification.
The resource management logical ne, the storage networking resource information, it accepts the Query Information that BS sends, and returns Query Result.
Scheme two: adjust processing method for the traffic characteristics that network side is initiated, in this case, the request that all Business Streams are adjusted will trigger from anchor ASN-GW and start.
S21, anchor ASN-GW initiate data path modify request messages (Data Path ModificationRequest) and give service ASN-GW.If service ASN-GW determines to satisfy the modification request of anchor ASN-GW, then carry out S22, otherwise carry out S23.
S2, service ASN-GW directly send to anchor ASN-GW and indicate all modifications request to be rejected in the data path modification response message (DataPath Modification Response), point out that dynamic service flow modification message is rejected.Anchor ASN-GW sends data path and revises acknowledge message (Data PathModification Ack) to service ASN-GW.If the request of service ASN-GW decision-making decision all modifications all is rejected, then whole process finishes.Otherwise service ASN-GW revises acknowledge message (Data Path Modification Ack) notice BS by data path, if the request of BS decision-making decision all modifications all is rejected, then whole process leaves it at that.
S23, if service ASN-GW determines to satisfy the request of modification partly or completely of anchor ASN-GW, then initiate data path modify request messages (Data Path Modification Request) to BS, the session identification that has comprised the Business Stream of needs modifications in this message, other information that need parameter of revising and the data path that may revise, these information the inside has comprised service ASN-GW and has determined that satisfiable those paths revise solicited messages, also is used for applying for revising up (from BS to the serving ASN-GW) data path between BS and the service ASN-GW.
Whether S24, this BS satisfy the modification request of this service ASN-GW according to the requirement decision of resource situation and request, if the requirement of all sessions is not satisfied, revising at the data path of giving service ASN-GW so indicates all modifications request all to be rejected in the response message (Data Path Modification Response), carry out S22, otherwise continue, also comprise the information of the downlink data channel that needs are revised simultaneously.
S25, BS revise according to the needs of data path modify request messages (Data Path ModificationRequest) the message the inside that receives and the sign of satisfiable each Business Stream of BS own resource is sent dynamic service flow modify request messages (DSC-REQ) to MSS.Can in a DSC-REQ message, carry the modification request of all Business Streams in principle.But according to the agreement regulation, a DSC-REQ message only can be revised a Business Stream at present, and the number of DSC-REQ is identical with the number of the Business Stream that needs to revise so.BS will receive one or more dynamic service flow and revise response message (DSC-RSP), with the success/failure of indication in the modification of MSS end dynamic service flow.After BS has received the MSS pair of response message with all Business Streams that need revise, revise indication in the response message (Data Path Modification Response) at the data path of giving service ASN-GW and can successfully accept the session identification revised, the upstream data path is revised information and result, and the information of descending (from serving ASN-GW) data path to BS, service ASN-GW receives receiving information according to BS after this message, revise the session identification that indication can be accepted to revise in the response message (Data Path Modification Response) at the data path of giving anchor ASN-GW, the upstream data path is revised information and result, and the information of descending (from anchor ASN-GW to service ASN-GW) data path.
S26, anchor ASN-GW revise acknowledge message (Data Path Modifcation Ack) notification service ASN-GW by data path, service ASN-GW revises acknowledge message (Data PathModification Ack) notice BS by data path, has confirmed the Business Stream information that can successfully revise at last in these message.Only receive after this message, the data path on this network element is revised just effective.BS sends the successful affirmation message (DSC-ACK) of dynamic service flow modification according to the sign of each Business Stream that the affirmation of data path modification acknowledge message (Data Path Modification Ack) the message the inside that receives is revised to MSS, revise response (DSC-RSP) message corresponding service stream for the application that other MSS send, then send the affirmation message (DSC-ACK) that dynamic service flow is revised failure to MSS.The total number of confirming of Business Stream must be identical with application modification response (DSC-RSP) message corresponding service stream number that MSS sends.Can in a DSC-ACK message, carry the modification of all Business Streams in principle.If but air interface (interface between MSS and the BS) agreement regulation, a DSC-ACK message only can be determined a Business Stream, the number of DSC-ACK is identical with application modification response (DSC-RSP) message number that MSS sends so.
In the scheme of embodiment 2, BS, service ASN-GW have the ability of judging own resource, therefore behind the related news that network element sends on receiving, the ability of can carrying out is judged, the modification request that will meet own resource sends to next network element, will not meet the modification request refusal of self-ability.
Also can adopt another to judge the method for own resource in this scheme, promptly at anchor ASN-GW by mutual with a resource management logical ne, obtain to agree the data path of request modification, and then to service ASN-GW and BS transmission request, in this case, request all can be accepted, (just can be clear and definite when anchor ASN-GW and resource management logical ne are mutual because not received, serve ASN-GW and BS and need not issue) again.This scheme can be simplified handling process.
Embodiment 2: a plurality of traffic characteristics adjustment that network side is initiated
Embodiment 2 is specific implementations of scheme two, shown in figure 0000, is the schematic flow sheet of the embodiment of the invention 2, and as seen from the figure, the present invention mainly may further comprise the steps:
As shown in Figure 6, idiographic flow is as follows:
S211, anchor ASN-GW initiate data path modify request messages (Data Path ModificationRequest) and give service ASN-GW, and this message comprises the characteristic modification of a plurality of session service streams.
S212, service ASN-GW determine to satisfy the modification request of anchor ASN-GW, then initiate data path modify request messages (Data Path Modification Request) to BS, the session identification that has comprised the Business Stream of needs modifications in this message, other information that need parameter of revising and the data path that may revise, be used for applying for revising up (from BS to the service ASN-GW) data path between BS and the service ASN-GW, also comprise the information of the downlink data channel of needs modification simultaneously.
S213, this BS judge that according to the requirement of resource situation and request BS can satisfy the modification request of this service ASN-GW; BS sends dynamic service flow modify request messages (DSC-REQ) to MSS successively according to the sign of each Business Stream that the needs of data path modify request messages (Data Path ModificationRequest) the message the inside that receives are revised.A DSC-REQ message only can be revised a Business Stream, and the number of DSC-REQ is identical with the number of the Business Stream that needs to revise so.BS will receive a plurality of dynamic service flow and revise response message (DSC-RES), with the success/failure of indication in the modification of MSS end dynamic service flow.BS can just initiate DSC-REQ to next Business Stream after receiving the response DSC-RSP of previous DSC-REQ.Also can not need to wait until previous request responding, and send a plurality of DSC-REQ concurrently.
S214, after BS has received the MSS pair of response message with all Business Streams that need revise, revise indication in the response message (Data Path Modification Response) at the data path of giving service ASN-GW and can successfully accept the session identification revised, the upstream data path is revised information and result, and the information of descending (from serving ASN-GW to BS) data path.
S215, service ASN-GW receive receiving information according to BS after this message, revise the session identification that indication can be accepted to revise in the response message (Data Path Modification Response) at the data path of giving anchor ASN-GW, the upstream data path is revised information and result, and the information of descending (from anchor ASN-GW to service ASN-GW) data path.All modifications begins to come into force on anchor ASN-GW.
S216, anchor ASN-GW revise acknowledge message (Data Path Modification Ack) notification service ASN-GW by data path, and described being modified on the service ASN-GW come into force.
S217, service ASN-GW revise acknowledge message (Data Path ModificationAck) notice BS by data path, have confirmed the Business Stream information that can successfully revise at last in these message.Described being modified on the service ASN-GW come into force.
S218, BS send the successful affirmation message (DSC-ACK) of dynamic service flow modification according to the sign of each Business Stream that the affirmation of data path modification acknowledge message (Data Path ModificationAck) the message the inside that receives is revised to MSS, Business Stream for not having among the DSC-REQ that receives successfully to revise sends the affirmation message (DSC-ACK) that dynamic service flow is revised failure to MSS.The Business Stream number that needs to confirm must be mated with the Business Stream number that the application that MSS sends is revised.A DSC-ACK message only can be determined a Business Stream, and the number of DSC-ACK is identical with application modification response (DSC-RSP) message number that MSS sends so.
For top two flow processs, revise in the message at data path, the information that may include the data path of traffic streams: the classified information of Business Stream, the identifying information of data path, the information such as QoS of Business Stream, these contents can comprise up data path information or the descending data path information or the path information of up-downgoing.
Among the present invention program, the adjustment information of data path can comprise bandwidth, delay requirement, shake and Business Stream RM, data path self characteristics or the like.These contents can comprise up data path information or the descending data path information or the path information of up-downgoing.
Adjust in the flow process in whole service flow characteristic, adopt distributed network resource management mechanism: each network element is according to oneself disposal ability and corresponding resource operating position, and whether decision is to making amendment with own relevant data path.
As shown in Figure 7, be based on the schematic network structure of the inventive method, as seen from the figure, this network configuration mainly comprises MSS, is used for the serving BS broadcasts that MSS inserts, and the service ASN-GW and the anchor ASN-GW of data path is provided.
Described anchor ASN-GW is provided with first data path and revises request transmitting unit, is used for sending first data path to described service ASN-GW and revises request, carries first data path and revises information;
Described service ASN-GW is provided with second data path and revises request transmitting unit, is used for sending second data path to described serving BS broadcasts and revises request, carries second data path and revises information;
Described serving BS broadcasts is provided with dynamic service flow and revises request transmitting unit, is used for sending dynamic service flow to MSS and revises request, carries the Business Stream information that need revise.
Described network also comprises the resource management logical ne, the storage networking resource information, and it accepts the Query Information that anchor ASN-GW sends, and returns Query Result.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims (34)

1, the method that internal interface data path characteristics is adjusted in a kind of wireless access network is characterized in that, may further comprise the steps:
A, mobile subscriber station (MSS) are initiated dynamic service flow to serving BS (BS) and are revised solicited message, carry the dynamic service stream information that needs modification;
First data path is revised in B, BS notification service Access Service Network Gateway (ASN-GW) request, revises in the request at first data path, carries the first data path information that need revise;
C, service ASN-GW notice anchor ASN-GW (ANCHOR ASN-GW) ask to revise second data path, revise in the request at second data path, carry the second data path information that needs modification;
The second data path information that D, anchor ASN-GW revise according to described needs is selected the data path of modification, and sends relevant response information.
2, the method for claim 1 is characterized in that, among the described step D, described anchor ASN-GW sends second data path to service ASN-GW and revises response message, second data path information and the result that the request of carrying is revised.
3, method as claimed in claim 2 is characterized in that, also comprises step:
E, service ASN-GW send first data path to BS and revise response message, second data path information and the result that the request of carrying is revised;
F, BS send dynamic service flow to MSS and revise response message, carry dynamic service flow and revise request results.
4, method as claimed in claim 3 is characterized in that, also comprises step:
G, MSS send acknowledge message to BS;
H, BS send first data path to service ASN-GW and revise acknowledge message;
I, service ASN-GW revise acknowledge message to anchor ASN-GW second data path.
5, the method for claim 1 is characterized in that, among the described step B, the described first data path information that needs modification is that BS can satisfy the some or all of data path information that the MSS dynamic service flow is revised the request correspondence.
6, as claim 1 or 5 described methods, it is characterized in that, among the described step B, comprise that also BS judges its dynamic service flow that whether can satisfy MSS modification request,, then enter step C if can satisfy, otherwise, enter step:
B1, send the refusal dynamic service flow to MSS and revise message.
7, the method for claim 1, it is characterized in that, among the described step C, the described second data path information that needs modification is the some or all of data path information that service ASN-GW can satisfy the first data path information correspondence of BS needs modification.
8, as claim 1 or 7 described methods, it is characterized in that, among the described step C, comprise that also service ASN-GW judges its first data path that whether can satisfy BS modification request,, then enter step D if can satisfy, otherwise, enter step:
C1, send refusal first data path to BS and revise message.
9, the method for claim 1 is characterized in that, among the described step B, also comprises:
After BS received dynamic service flow modification request, query resource management logic network element obtained the data path information that can be accepted modification.
10, method as claimed in claim 9 is characterized in that, among the described step B, the described first data path information is the data path that can be accepted to revise by BS, service ASN-GW and anchor ASN-GW.
11, method as claimed in claim 10 is characterized in that, the described first data path information is identical with the second data path information.
12, the method for claim 1 is characterized in that, among described step B and the C, described first, second data path information includes the session identification of one or more Business Stream that need revise and the parameter that needs are revised.
13, method as claimed in claim 12 is characterized in that, described parameter comprises:
The service quality QoS information of data path characteristics and/or support.
14, the method for claim 1 is characterized in that, described data path comprises downlink data path and upstream data path.
15, the method that internal interface data path characteristics is adjusted in a kind of wireless access network is characterized in that, may further comprise the steps:
A, anchor ASN-GW send first data path to service ASN-GW and revise request, carry first data path and revise information;
B, service ASN-GW send second data path to BS and revise request, carry second data path and revise information;
C, BS send dynamic service flow to MSS and revise request, carry the Business Stream information that needs modification;
The Business Stream information that D, MSS revise according to described needs is revised corresponding business stream, and returns dynamic service flow and revise response message.
16, method as claimed in claim 15 is characterized in that, also comprises step:
E, BS send second data path to service ASN-GW and revise response message, second data path information and the result that the request of carrying is revised;
F, service ASN-GW send first data path to anchor ASN-GW and revise response message, second data path information and the result that the request of carrying is revised.
17, method as claimed in claim 16 is characterized in that, also comprises step:
G, anchor ASN-GW send first data path to service ASN-GW and revise acknowledge message;
H, service ASN-GW send second data path to BS and revise acknowledge message;
I, BS send dynamic service flow to MSS and revise acknowledge message.
18, method as claimed in claim 15, it is characterized in that, among the described step B, the described first data path information that needs modification is the some or all of logarithmic data path information that service ASN-GW can satisfy the first data path information correspondence of anchor ASN-GW needs modification.
19, as claim 15 or 18 described methods, it is characterized in that, among the described step B, comprise that also service ASN-GW judges its first data path that whether can satisfy anchor ASN-GW modification request, if can satisfy, then enters step C, otherwise, enter step:
B1, send refusal first data path to anchor ASN-GW and revise message.
20, method as claimed in claim 15 is characterized in that, among the described step C, the described second data path information that needs modification is that BS can satisfy the corresponding some or all of data path information of service ASN-GW dynamic service flow modification request.
21, as claim 15 or 20 described methods, it is characterized in that among the described step C, comprise also BS judges whether it can satisfy dynamic service flow modification request of service ASN-GW, if can satisfy, then enters step D, otherwise, enter step:
C1, send the refusal dynamic service flow to service ASN-GW and revise message.
22, method as claimed in claim 15 is characterized in that, among described step B and the C, described first, second data path information includes the session identification of the Business Stream that one or more needs revise and the parameter of needs modification.
23, method as claimed in claim 15 is characterized in that, in the described steps A, also comprises step:
Anchor ASN-GW query resource management logic network element obtains the data path information that can be accepted modification.
24, method as claimed in claim 23 is characterized in that, in the described steps A, the described first data path information, be can serviced ASN-GW and BS accepts to revise data path information.
25, method as claimed in claim 24 is characterized in that, the described first data path information is identical with the second data path information.
26, the method for claim 1 is characterized in that, among described step B and the C, described first, second data path information includes the session identification of one or more Business Stream that need revise and the parameter that needs are revised.
27, method as claimed in claim 26 is characterized in that, described parameter comprises:
The service quality QoS information of data path characteristics and/or support.
28, method as claimed in claim 15 is characterized in that, described data path comprises downlink data path and upstream data path.
29, the method that internal interface data path characteristics is adjusted in a kind of wireless access network is characterized in that, may further comprise the steps:
A, mobile subscriber station (MSS) are initiated dynamic service flow to serving BS (BS) and are revised solicited message, carry the dynamic service stream information that needs modification;
First data path is revised in B, BS notification service Access Service Network Gateway (ASN-GW) request, revises in the request at first data path, carries the first data path information that need revise;
The first data path information that C, service ASN-GW revise according to described needs is selected the data path of modification, and sends relevant response information.
30, the method that internal interface data path characteristics is adjusted in a kind of wireless access network is characterized in that, may further comprise the steps:
A, service ASN-GW send first data path to BS and revise request, carry first data path and revise information;
B, BS send dynamic service flow to MSS and revise request, carry the Business Stream information that needs modification;
The Business Stream information that C, MSS revise according to described needs is revised corresponding business stream, and returns dynamic service flow and revise response message.
31, a kind of Radio Access Network comprises MSS, is used for the BS that MSS inserts, and the service ASN-GW and the anchor ASN-GW of data path is provided, and it is characterized in that:
Described MSS is provided with dynamic service flow and revises request transmitting unit, is used for sending dynamic service flow to BS and revises request, carries the dynamic service stream information that need revise;
Described BS is provided with first data path and revises request transmitting unit, is used for revising request to service ASN-GW transmission ground first data path, carries the first data path information that needs modification;
Described service ASN-GW is provided with second data path and revises request transmitting unit, is used for sending second data path to anchor ASN-GW and revises request, carries the second data path information that needs modification.
32, network as claimed in claim 31 is characterized in that, also comprises the resource management logical ne, the storage networking resource information, and it accepts the Query Information that BS sends, and returns Query Result.
33, a kind of Radio Access Network comprises MSS, is used for the BS that MSS inserts, and the service ASN-GW and the anchor ASN-GW of data path is provided, and it is characterized in that:
Described anchor ASN-GW is provided with first data path and revises request transmitting unit, is used for sending first data path to described service ASN-GW and revises request, carries first data path and revises information;
Described service ASN-GW is provided with second data path and revises request transmitting unit, is used for sending second data path to described BS and revises request, carries second data path and revises information;
Described BS is provided with dynamic service flow and revises request transmitting unit, is used for sending dynamic service flow to MSS and revises request, carries the Business Stream information that need revise.
34, network as claimed in claim 33 is characterized in that, also comprises the resource management logical ne, the storage networking resource information, and it accepts the Query Information that anchor ASN-GW sends, and returns Query Result.
CNB2005100925855A 2005-08-23 2005-08-23 Method and network of regulating internal interface data path characteristics in radio access network Expired - Fee Related CN100417254C (en)

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CN101437268B (en) * 2007-11-14 2013-04-17 华为技术有限公司 Method, apparatus and system for establishing QoS business stream of WiMAX
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