CN100521720C - Packet prepayment service realization based on flow/time length and service quality - Google Patents

Abstract

The present invention relates to a method for implementing packet prepaid services based on traffic/duration and quality of service (QoS), which is applied to a CDMA (Code Division Multiple Access) wireless communication network, including: setting support based on traffic/duration and QoS in the network Prepaid mode; the method also includes: A, mobile user authentication; B, mobile user and PDSN establish a main service instance, and PDSN sends the QoS level determined after negotiation to the remote user attributable to the dial-in authentication service/prepaid Fee server (HOME RADIUS/PPS), HOMERADIUS/PPS calculates and distributes traffic/time quota and traffic/time threshold according to the received QoS level; C. If the QoS level changes, redistribute traffic/time quota and traffic/time threshold . According to the method of the invention, the prepaid user can be charged in combination with QoS.

Description

A packet prepaid service implementation method based on traffic/duration and service quality

technical field

The invention relates to a prepaid service in a CDMA communication network, in particular to a method for realizing a packet prepaid service based on flow/duration and quality of service (QoS).

Background technique

Through the cooperation of PDSN/HA (packet data service node/home agent) and HomeRADIUS/PPS (home remote user dial-in authentication service/prepaid server), the CDMA system realizes traffic-based and duration-based packet prepaid services.

Prepaid service: After the user of this service opens an account with the operator, he deposits a certain amount of fees in the designated account in advance. During the user's use of the service, the operator deducts the used fee from the account in real time. For example, China Mobile's Shenzhouxing and China Unicom's Ruyitong are all implemented through prepaid services.

PPAC (PrePaid Accounting Capability, support for prepaid billing): one of the attributes of RADIUSAccounting (remote user dial-in authentication service billing), which is used to indicate the billing supported by PPC (PrePaid Client, prepaid client) Mode and the billing method selected by PPS (PrePaid Server, prepaid server). If the request message sent by the PPC to the PPS does not include this attribute, the session cannot be processed in the prepaid mode.

PPAQ (PrePaid Accounting Quota, prepaid accounting quota): one of the RADIUS Accounting attributes, this attribute is used to indicate traffic or duration information in a group session, including balance, quota threshold, etc. All on-line RADIUS Access-Request (online RADIUS access request) and on-line RADIUS Access-Accept (online RADIUS access response) messages shall contain this attribute. Sub-attributes include VolumeQuota (traffic quota), VolumeThreshold (traffic threshold), DurationQuota (duration quota), DurationThreshold (duration threshold), Update-Reason (update reason value), etc.

Taking PDSN (Packet Data Serving Node, Packet Data Serving Node) as an example of PPC, the basic flow of CDMA system based on traffic packet prepayment is as follows:

Referring to Figure 1, for SIMPLE IP (simple IP protocol, IP protocol in fixed network) or MIP (mobile IP) establishment process, the PDSN that supports PPC adds PPAC attributes to the RADIUS Access-Request (RADIUS server access request) message sent to Home RADIUS to indicate that it supports traffic-based prepaid services. After HOME RADIUS/PPS authenticates the user, it checks whether the user is a prepaid user, and checks the PPAC attribute sent by the PDSN. If the user is a prepaid user and has enough balance available, HOME RADIUS/PPS returns a RADIUS Access-Accept (RADIUS server access response) message, which includes PPAC and PPAQ, and the initializedVolumeQuota (initial traffic quota) is given in PPAQ , Quota ID (quota identification) and VolumeThreshold, in the PPAC attribute, indicate that the selected charging type is flow-based charging.

During business use, PDSN acts as a PPC to communicate with HOME RADIUS/PPS through On-line RADIUS Access-Request message, and HOME RADIUS/PPS responds with On-line RADIUS Access-Accept message.

The specific traffic usage process is shown in Figure 2. At the beginning of the figure, VQ (VolumeQuota, traffic quota) = 50, VT (VolumeThreshold, traffic threshold) = 40. Whenever the user usage reaches 40, PDSN will send On-line RADIUS The Access-Request message indicates that the threshold has been reached, and the HOME RADIUS/PPS redistributes according to the user balance. When the PDSN checks that the user traffic has reached the threshold and VQ=VT, it sends an On-line RADIUS Access-Request message, indicates VQ=150 in the PPAQ, and Update-Reason is set to 4 (that is, Quota Reached (the quota is all used up) )), and release the corresponding service instance (Service Instance). The PPS sends an Accept message for confirmation.

In the current CDMA system, packet prepayment only considers two charging methods based on traffic and duration, and has not considered the charging method based on QoS, that is, paying attention to the quality of users in the process of using services, such as voice quality in voice services, time Delay and data service rate, delay, throughput, etc. For example, when a user makes a call with a mobile phone, if the call is dropped or the signal quality is too poor to make the call or the network equipment is down, the user cannot use the voice service provided by the operator, but the operator will not give the user Waiver of fees.

Contents of the invention

The invention provides a method for implementing packet prepayment based on traffic/duration and service quality (QoS) in a CDMA system.

A method for implementing packet prepaid services based on traffic and quality of service QoS provided by the present invention is applied to a CDMA wireless communication network, including: setting a prepaid mode that supports traffic and QoS in the network; the method also includes the following steps:

A. Authenticate mobile users;

B. The mobile user establishes a main service instance with the packet data service node PDSN, and the PDSN sends the QoS level determined after negotiation to the belonging remote user dial-in authentication service/prepaid server HOMERADIUS/PPS, and the HOME RADIUS/PPS receives the Calculate and allocate traffic quotas and traffic thresholds according to the QoS level;

C. If the QoS level changes, the PDSN will send the changed QoS level to HOMERADIUS/PPS, and the HOME RADIUS/PPS will redistribute the traffic quota according to the changed QoS level, the traffic quota before the change and the used traffic before the QoS level change and traffic thresholds.

According to the above method of the present invention, the setting supports a prepaid method based on traffic and QoS, including:

In the prepaid charging support of prepaid charging, the subtype of the PPAC attribute, the capability AvailableInClient that the prepaid service client can support, and the prepaid method SelectedforSession selected for this session are added at the same time to indicate that the user supports traffic-based And QoS prepayment method and HOMERADIUS/PPS choose this prepayment method;

Add the value QoS level change QoSChanged in the subtype update reason value Update-Reason;

Add the subtype QoS level QoS Class to indicate the changed QoS level;

Add the subtype VolumeUsedBeforeQoSChanged to indicate the traffic used before the QoS level changes.

According to the above method of the present invention, said step A comprises:

A1: PDSN adds the PPAC attribute to the RADIUS server access request RADIUS Access-Request message sent to HOME RADIUS/PPS to indicate that it supports the prepaid method based on traffic and QoS;

A2: HOME RADIUS/PPS checks whether the user has signed a prepaid service based on traffic and QoS according to the PPAC attributes and signing information sent by the PDSN, and judges whether the user's prepaid account has sufficient balance; if so, HOME RADIUS /PPS returns the RADIUS server access response RADIUS Access-Accept message, including PPAC and prepaid quota PPAQ attributes, in PPAQ assigning subtype traffic quota VolumeQuota=0, traffic threshold VolumeThreshold=0 and quota identification Quota ID, in PPAC attributes The subtype of SelectedforSession indicates that the selected prepayment type is based on traffic and QoS prepayment.

According to the above method of the present invention, said step B comprises:

B1: PDSN sends an online RADIUS access request On-lineRADIUS Access-Request message to HOME RADIUS/PPS, which contains PPAQ, the value of subtype Update-Reason is QoS Changed, and the value of subtype QoS Class is the negotiated QoS level. VolumeQuota=0 to indicate that this message is used to determine the QoS level for the first time;

B2: HOME RADIUS/PPS calculates according to the received QoS level and the QoS service rate table when the service is opened, and includes the PPAQ attribute in the online RADIUS access response On-line RADIUS Access-Accept message, which is given in the PPAQ VolumeQuota, Quota ID and VolumeThreshold allocated after calculation.

According to the above method of the present invention, said step C comprises:

C1: PDSN sends an On-line RADIUS Access-Request message to HOMERADIUS/PPS, which includes PPAQ, the value of the subtype Update-Reason is QoS Changed, the value of the subtype QoS Class is the changed QoS level, and the subtype VolumeQuota=Up Secondary allocated traffic quota, subtype VolumeUsedBeforeQoSChanged = used traffic before QoS level change;

C2: HOME RADISU/PPS recalculates the allocation quota according to the changed QoS Class, VolumeQuota, and VolumeUsedBeforeQoSChanged, and returns an On-lineRADIUS Access-Accept message to the PDSN, which contains PPAQ, and uses PPAQ subtypes VolumeQuota and VolumeThreshold to indicate the traffic quota and traffic threshold .

According to the above method of the present invention, the quota calculation method after the QoS grade changes includes:

HOME RADISU/PPS first subtracts the fee corresponding to the traffic used before the QoS level change from the user account balance;

Then according to the changed QoS level, the rate table based on the QoS level and traffic service, and the balance of the user account, calculate the total traffic that the current user can use;

Return VolumeQuota and VolumeThreshold to indicate traffic quota and traffic threshold in PPAQ according to the principle of traffic allocation and threshold control.

The present invention also provides a method for realizing packet prepaid services based on duration and quality of service QoS, which is applied to a code division multiple access CDMA wireless communication network, including: setting in the network to support a prepayment method based on duration and QoS; the method also Include the following steps:

a. Authenticate mobile users;

b. The mobile user establishes a main service instance with the packet data service node PDSN, and the PDSN sends the QoS level determined after negotiation to the remote user dial-in authentication service/prepaid server HOMERADIUS/PPS, and the HOME RADIUS/PPS receives the Calculate the QoS level and allocate time quotas and time thresholds;

c. If the QoS level changes, the PDSN will send the changed QoS level to HOMERADIUS/PPS, and the HOME RADIUS/PPS will redistribute the time length quota according to the changed QoS level, the time quota before the change and the time used before the QoS level change and duration thresholds.

According to the above method of the present invention, the setting supports a prepaid method based on duration and QoS, including:

In the prepaid charging support situation of prepaid charging, the subtype of the PPAC attribute, the capability AvailableInClient that the prepaid service client can support, and the prepaid method SelectedforSession selected for this session are added at the same time to indicate that the user supports time-based And QoS prepayment method and HOME RADIUS/PPS choose this prepayment method;

Add the value QoS level change QoSChanged in the subtype update reason value Update-Reason;

Add the subtype QoS level QoS Class to indicate the changed QoS level;

Add TimeUsedBeforeQoSChanged to indicate the time used before the QoS level changes.

According to the above method of the present invention, said step a comprises:

a1: The PDSN adds the PPAC attribute to the RADIUS Access-Request message sent to the HOME RADIUS/PPS RADIUS server to indicate that it supports the prepayment method based on duration and QoS;

a2: HOME RADIUS/PPS checks whether the user has signed a prepaid service based on duration and QoS according to the PPAC attributes and signing information sent by the PDSN, and judges whether the user's prepaid account has sufficient balance; if so, HOME RADIUS /PPS returns the RADIUS server access response RADIUS Access-Accept message, which includes PPAC and prepaid quota PPAQ attributes, assign subtype duration quota DurationQuota=0 in PPAQ, duration threshold DurationThreshold=0 and quota identification Quota ID, in PPAC attributes The subtype of SelectedforSession indicates that the selected prepayment type is based on duration and QoS prepayment.

According to the above method of the present invention, said step b comprises:

b1: PDSN sends an online RADIUS access request On-lineRADIUS Access-Request message to HOME RADIUS/PPS, which contains PPAQ, the value of subtype Update-Reason is QoS Changed, and the value of subtype QoS Class is the negotiated QoS level. DurationQuota=0 to indicate that this message is used to determine the QoS level for the first time;

b2: HOME RADIUS/PPS calculates according to the received QoS level and the QoS service rate table when the service is opened, and includes the PPAQ attribute in the online RADIUS access response On-line RADIUS Access-Accept message, which is given in the PPAQ DurationQuota, Quota ID and DurationThreshold assigned after calculation.

According to the above method of the present invention, said step c comprises:

c1: PDSN sends an On-line RADIUS Access-Request message to HOME RADIUS/PPS, which includes PPAQ, the value of the subtype Update-Reason is QoS Changed, the value of the subtype QoS Class is the changed QoS level, and the subtype DurationQuota= The time quota allocated last time, the subtype TimeUsedBeforeQoSChanged=the time used before the QoS level changed;

c2: HOME RADISU/PPS recalculates the allocation quota according to the changed QoS Class, DurationQuota, and TimeUsedBeforeQoSChanged, and returns an On-lineRADIUS Access-Accept message to the PDSN, which contains PPAQ, and uses the PPAQ subtypes DurationQuota and DurationThreshold to indicate the duration quota and duration threshold .

According to the above method of the present invention, the quota calculation method after the QoS grade changes includes:

HOME RADISU/PPS first subtracts the fee corresponding to the time spent before the QoS level changes from the user account balance;

Then according to the changed QoS level, the rate table based on the QoS level and duration service and the balance of the user account, calculate the total usage time of the current user;

According to the principle of duration allocation and threshold control, DurationQuota and DurationThreshold are returned in PPAQ to indicate the duration quota and duration threshold.

By adopting the method of the invention, the prepaid user can be charged in combination with the QoS level.

Description of drawings

Fig. 1 is a schematic diagram of the prepaid authentication process;

Figure 2 is a schematic diagram of the traffic usage process;

Fig. 3 is a flow chart of the present invention based on traffic and QoS prepaid service;

Fig. 4 is a flow chart of the prepaid service based on duration and QoS in the present invention.

Detailed ways

The present invention makes the following adjustments on the basis of the existing traffic-based and time-based standards of 3GPP2:

1. Add values to the subtype AvailableInClient (capability supported by the prepaid service client) and SelectedforSession (the prepaid method selected for this session) of the PPAC VSA at the same time to indicate whether PPC supports QoS-based prepaid, PPS Whether the QoS-based prepayment method is selected;

After the increase of AvailableInClient, the values are as follows:

0x00000001 Support traffic-based prepayment;

0x00000010 Support time-based prepayment;

0x00000011 Support traffic-based and time-based prepaid methods;

0x00000101 Support traffic-based and QoS-based prepaid methods;

0x00000110 Support time-based and QoS-based prepaid methods;

0x00000111 Support traffic-based and QoS-based prepayment methods, and also support duration-based and QoS-based prepayment methods.

After the SelectedforSession is added, the value is as follows:

0x00000001 Select the traffic-based prepaid method;

0x00000010 Select the time-based prepayment method;

0x00000011 Select the traffic-based and time-based prepayment method;

0x00000101 Select traffic-based and QoS-based prepaid methods;

0x00000110 Select the time-based and QoS-based prepayment methods.

2. In PPAQ VSA:

(1) The value QoS Changed (QoS level change) is added to the subtype Update-Reason, which is used to notify the PPS when the QoS level changes;

(2) Add the subtype QoS Class (QoS class), which is used to indicate the changed QoS class;

(3) Add the subtype VolumeUsedBeforeQoSChanged, which is used to indicate the traffic used before the QoS level changes, and is used for traffic-based services;

(4) Add the subtype TimeUsedBeforeQoSChanged, which is used to indicate the time used before the QoS level changes, and is used for time-based services.

The packet prepayment process based on traffic and QoS and the packet prepayment process based on duration and QoS are described below.

1. Packet prepayment process based on traffic and QoS

Premise: PDSN supports traffic-based and QoS-based prepaid methods.

Referring to Fig. 3, the present invention is based on flow and QoS packet prepaid service flow as follows:

1. Business initiation stage

For the establishment process of SIMPLE IP or MIP that needs to be authenticated with HomeRADIUS (remote user dial-in authentication service to which the user belongs), the PDSN that supports PPC adds the PPAC attribute to the RADIUS Access-Request message sent to Home RADIUS/PPS to Indicates that traffic-based and QoS-based prepaid methods are supported. After HOME RADIUS/PPS authenticates the mobile terminal, it checks whether the user is a prepaid user and signs up for the QoS service, and checks the PPAC attribute sent by the PDSN. If the user is a prepaid user and has signed a QoS service, and there is enough balance available, HOMERADIUS/PPS returns a RADIUS Accept-Accept message, including PPAC and PPAQ, and VolumeQuota is given in PPAQ (the value here is 0) , Quota ID and VolumeThreshold (the value here is 0), in the subtype SelectedforSession of the PPAC attribute, it indicates that the prepaid type selected is traffic-based and QoS-based prepaid.

After the mobile terminal establishes the main service instance (main service instance) with the PDSN, the QoS level negotiation is carried out. After the negotiation, the PDSN reserves the determined QoS level and sends an On-line RADIUSAccess-Request message to the PPS, which includes PPAQ and subtype Update-Reason The value is QoSChanged, the value of the subtype QoS Class is the negotiated QoS level, and VolumeQuota=0 indicates that this message is used to determine the QoS level for the first time. HOME RADIUS/PPS calculates according to the received QoS level and the QoS service rate table when the service is opened, and includes the PPAQ attribute in the On-line RADIUSAccess-Accept message, and the PPAQ gives the distribution after calculation based on the QoS level VolumeQuota, Quota ID and VolumeThreshold under this QoS class.

2. Business use stage

In the case of no change in QoS, the process is consistent with that in the existing standard. After the QoS changes, the PDSN, as a PPC, sends an On-line RADIUSAccess-Request message to the HOME RADIUS/PPS, which contains PPAQ, the value of the subtype Update-Reason is QoSChanged, and the value of the subtype QoS Class is the changed QoS level. Subtype VolumeQuota = traffic quota allocated last time, subtype VolumeUsedBeforeQoSChanged = traffic used before QoS level changed. HOME RADISU/PPS redistributes quotas according to the changed QoS Class, VolumeQuota, and VolumeUsedBeforeQoSChanged, and returns an On-line RADIUSAccess-Accept message to PDSN, which contains PPAQ, and uses PPAQ subtypes VolumeQuota and VolumeThreshold to indicate traffic quotas and traffic thresholds. The quota calculation process after the QoS level change is as follows: Home RADIUS first subtracts the fee corresponding to the used traffic (VolumeUsedBeforeQoSChanged) before the QoS level change from the user account balance, and then according to the changed QoS level, based on the QoS level and traffic service According to the rate table and user account balance, calculate how much traffic the current user can use in total, and then return VolumeQuota and VolumeThreshold in PPAQ to indicate the traffic quota and traffic threshold according to the principle of traffic allocation and threshold control.

3. Termination of business

The business termination process is consistent with the existing process in the standard.

2. Packet prepayment process based on duration and QoS

Premise: PDSN supports duration-based and QoS-based prepayment methods.

Referring to Fig. 4, the present invention is based on duration and QoS packet prepaid service flow as follows:

1. Business initiation stage

For the establishment process of SIMPLE IP or MIP that needs to be authenticated with Home RADIUS, the PDSN that supports PPC adds the PPAC VSA attribute to the RADIUS Access-Request message sent to Home RADIUS/PPS to indicate that it supports time-based and QoS-based prepaid methods . After HOMERADIUS/PPS authenticates the mobile terminal, it checks whether the user is a prepaid user and signs up for the QoS service, and checks the PPAC attribute sent by the PDSN. If the user is a prepaid user and has signed a QoS service, and there is enough balance available, HOME RADIUS/PPS returns a RADIUSAccept-Accept message, including PPAC and PPAQ, and DurationQuota is given in PPAQ (the value here is 0) , Quota ID (quota ID) and DurationThreshold (the value here is 0), in the subtype SelectedforSession of the PPAC attribute, it indicates that the selected prepayment type is based on duration and QoS prepayment.

After the mobile terminal establishes a main service instance with the PDSN, the QoS level negotiation is carried out. After the negotiation, the PDSN reserves the determined QoS level and sends an On-line RADIUS Access-Request message to the PPS, which contains PPAQ, and the subtype Update-Reason value is QoS Changed, the value of the subtype QoS Class is the negotiated QoS class, and DurationQuota=0 to indicate that this message is used to determine the QoS class for the first time. HOME RADIUS/PPS is calculated based on the received QoS level, the QoS service rate table at the time of service opening and the current balance of the user account, and includes the PPAQ attribute in the On-line RADIUS Access-Accept message, and the basis is given in the PPAQ DurationQuota, Quota ID and DurationThreshold assigned under this QoS level after the QoS level is calculated.

2. Business use stage

In the case of no change in QoS, the process is consistent with that in the existing standard. After the QoS changes, the PDSN, as a PPC, sends an On-line RADIUSAccess-Request message to the HOME RADIUS/PPS, which contains PPAQ, the value of the subtype Update-Reason is QoSChanged, and the value of the subtype QoS Class is the changed QoS level. Subtype DurationQuota = last allocated duration quota, subtype TimeUsedBeforeQoSChanged = used duration before QoS level changed. HOME RADISU/PPS redistributes quotas according to the changed QoS Class, DurationQuota, and TimeUsedBeforeQoSChanged, and returns an On-line RADIUSAccess-Accept message to PDSN, which contains PPAQ, and uses PPAQ subtypes DurationQuota and DurationThreshold to indicate traffic quotas and traffic thresholds. The quota calculation process after the QoS level changes is: Home RADIUS first subtracts the fee corresponding to the time used before the QoS level change (TimeUsedBeforeQoSChanged) from the user account balance, and then according to the changed QoS level, based on the QoS level and time duration business According to the tariff table and user account balance, calculate how much time the current user can use in total, and then return DurationQuota and DurationThreshold to indicate the duration quota and duration threshold in PPAQ according to the duration allocation and threshold control principles.

3. Termination of business

The business termination process is consistent with the existing process in the standard.

The invention provides a solution for realizing QoS-based packet prepaid services in a CDMA system, and can charge prepaid users combined with QoS.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present invention can easily think of changes or Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (15)

1, a kind of packet-based prepayment service implementation method based on flow and quality of service QoS is applied to code division multiple access cdma wireless communication network, it is characterized in that comprising: the prepayment mode of support based on flow and QoS is set in network; This method also comprises the following steps:

A, to mobile phone user authentication;

B, mobile subscriber and packet data serving node PDSN set up the main business example, the QoS grade that PDSN will consult to determine the back sends to the remote subscriber of ownership and dials in authentication service/prepaid server HOMERADIUS/PPS, and HOME RADIUS/PPS calculates and dispense flow rate quota and traffic threshold according to the QoS grade of receiving;

C, if the QoS grade change, QoS grade after PDSN will change sends to HOMERADIUS/PPS, HOME RADIUS/PPS according to the QoS grade after changing, before changing the flow quota and the QoS change of rank before the flow that used redistribute flow quota and traffic threshold.

2, the method for claim 1 is characterized in that: the described prepayment mode that support is set based on flow and QoS comprises:

In the prepayment mode SelectedforSession that the prepaid accounting of prepaid accounting supports ability AvailableInClient that the subtype prepaid services client of situation PPAC attribute can be supported and this session to select, increase value simultaneously, be used for representing that the user supports to have selected this prepayment mode based on flow and QoS prepayment mode and HOME RADIUS/PPS;

Upgrade increase value QoS change of rank QoSChanged among the cause value Update-Reason in subtype;

Increase subtype QoS rank QoS Class, the QoS grade after being used for representing to change;

Increase subtype QoS change of rank employed flow VolumeUsedBeforeQoSChanged before, be used for being illustrated in QoS change of rank employed flow before.

3, method as claimed in claim 2 is characterized in that: described steps A comprises:

A1:PDSN inserts in the request RADIUS Access-Request message at the radius server that mails to HOME RADIUS/PPS and adds the PPAC attribute, with the prepayment mode of indication support based on flow and QoS;

PPAC attribute and CAMEL-Subscription-Information that A2:HOME RADIUS/PPS sends according to PDSN check whether the user has contracted based on the prepayment service of flow and QoS, and judge on this user's the prepaid account whether enough remaining sums are arranged; If, HOMERADIUS/PPS returns radius server and inserts response RADIUS Access-Accept message, comprising PPAC and pre-payment quota PPAQ attribute, in PPAQ, distribute subtype flow quota VolumeQuota=0, traffic threshold VolumeThreshold=0 and quota sign Quota ID, the pre-paid type of its selection of indication is based on flow and QoS prepayment mode in the subtype SelectedforSession of PPAC attribute.

4, method as claimed in claim 3 is characterized in that: described step B comprises:

B1:PDSN sends online RADIUS to HOME RADIUS/PPS and inserts request On-lineRADIUS Access-Request message, wherein comprise PPAQ, subtype Update-Reason value is QoS Changed, subtype QoS Class value is the QoS grade after consulting, and VolumeQuota=0 is used for determining for the first time the QoS grade to indicate this message;

QoS operating cost counting rate meter when QoS grade that B2:HOME RADIUS/PPS basis is received and service fulfillment calculates, and in online RADIUS access response On-line RADIUS Access-Accept message, comprise the PPAQ attribute, in PPAQ, provide and calculate the VolumeQuota that the back is distributed, Quota ID and VolumeThreshold.

5, method as claimed in claim 4 is characterized in that: described step C comprises:

C1:PDSN sends On-line RADIUS Access-Request message to HOME RADIUS/PPS, wherein comprise PPAQ, subtype Update-Reason value is QoS Changed, subtype QoS Class value is the QoS grade after changing, subtype VolumeQuota=goes up the flow quota of sub-distribution, the flow that has used before the subtype VolumeUsedBeforeQoSChanged=QoS change of rank;

C2:HOME RADISU/PPS recomputates allocated quotas according to QoS Class, VolumeQuota, the VolumeUsedBeforeQoSChanged after changing, and return On-lineRADIUS Access-Accept message to PDSN, wherein comprise PPAQ, and indicate flow quota and traffic threshold with PPAQ subtype VolumeQuota and VolumeThreshold.

6, method as claimed in claim 5 is characterized in that: the quota computational methods after the QoS change of rank comprise:

HOME RADISU/PPS at first deducts the pairing expense of the flow that has used before the QoS change of rank from the user account number remaining sum;

Again according to the QoS grade after changing, based on the Fee Schedule and the user account number remaining sum of QoS grade and flow business, calculate the flow that the active user can use altogether;

In PPAQ, return VolumeQuota and VolumeThreshold indication flow quota and traffic threshold according to assignment of traffic and thresholding control principle.

7, a kind of packet-based prepayment service implementation method based on duration and quality of service QoS is applied to code division multiple access cdma wireless communication network, it is characterized in that comprising: the prepayment mode of support based on duration and QoS is set in network; This method also comprises the following steps:

A, to mobile phone user authentication;

B, mobile subscriber and packet data serving node PDSN set up the main business example, the QoS grade that PDSN will consult to determine the back sends to the remote subscriber of ownership and dials in authentication service/prepaid server HOMERADIUS/PPS, and HOMERADIUS/PPS calculates according to the QoS grade of receiving and distributes duration quota and duration thresholding;

C, if the QoS grade change, QoS grade after PDSN will change sends to HOMERADIUS/PPS, HOME RADIUS/PPS according to the QoS grade after changing, before changing the duration quota and the QoS change of rank before the duration that used redistribute duration quota and duration thresholding.

8, method as claimed in claim 7 is characterized in that: the described prepayment mode that support is set based on duration and QoS comprises:

In the prepayment mode SelectedforSession that the prepaid accounting of prepaid accounting supports ability AvailableInClient that the subtype prepaid services client of situation PPAC attribute can be supported and this session to select, increase value simultaneously, be used for representing that the user supports to have selected this prepayment mode based on duration and QoS prepayment mode and HOME RADIUS/PPS;

Upgrade increase value QoS change of rank QoSChanged among the cause value Update-Reason in subtype;

Increase subtype QoS rank QoS Class, the QoS grade after being used for representing to change;

Increase subtype QoS change of rank employed duration TimeUsedBeforeQoSChanged before, be used for being illustrated in QoS change of rank employed duration before.

9, method as claimed in claim 8 is characterized in that: described step a comprises:

Al:PDSN inserts in the request RADIUS Access-Request message at the radius server that mails to HOME RADIUS/PPS and adds the PPAC attribute, with the prepayment mode of indication support based on duration and QoS;

PPAC attribute and CAMEL-Subscription-Information that a2:HOMERADIUS/PPS sends according to PDSN check whether the user has contracted based on the prepayment service of duration and QoS, and judge on this user's the prepaid account whether enough remaining sums are arranged; If, HOME RADIUS/PPS returns radius server and inserts response RADIUS Access-Accept message, comprising PPAC and pre-payment quota PPAQ attribute, in PPAQ, distribute subtype duration quota DurationQuota=0, duration thresholding DurationThreshold=0 and quota sign Quota ID, the pre-paid type of its selection of indication is based on duration and QoS prepayment mode in the subtype SelectedforSession of PPAC attribute.

10, method as claimed in claim 9 is characterized in that: described step b comprises:

B1:PDSN sends online RADIUS to HOMERADIUS/PPS and inserts request On-lineRADIUS Access-Request message, wherein comprise PPAQ, subtype Update-Reason value is QoS Changed, subtype QoS Class value is the QoS grade after consulting, and DurationQuota=0 is used for determining for the first time the QoS grade to indicate this message;

QoS operating cost counting rate meter when QoS grade that b2:HOME RADIUS/PPS basis is received and service fulfillment calculates, and in online RADIUS access response On-line RADIUS Access-Accept message, comprise the PPAQ attribute, in PPAQ, provide and calculate the DurationQuota that the back is distributed, Quota ID and DurationThreshold.

11, method as claimed in claim 10 is characterized in that: described step c comprises:

C1:PDSN sends On-line RADIUS Access-Request message to HOMERADIUS/PPS, wherein comprise PPAQ, subtype Update-Reason value is QoS Changed, subtype QoS Class value is the QoS grade after changing, subtype DurationQuota=goes up the duration quota of sub-distribution, the duration that has used before the subtype TimeUsedBeforeQoSChanged=QoS change of rank;

C2:HOME RADISU/PPS recomputates allocated quotas according to QoS Class, DurationQuota, the TimeUsedBeforeQoSChanged after changing, and return On-lineRADIUS Access-Accept message to PDSN, wherein comprise PPAQ, and indicate duration quota and duration thresholding with PPAQ subtype DurationQuota and DurationThreshold.

12, method as claimed in claim 11 is characterized in that: the quota computational methods after the QoS change of rank comprise:

HOME RADISU/PPS at first deducts the pairing expense of the duration that has used before the QoS change of rank from the user account number remaining sum;

Again according to the QoS grade after changing, based on the Fee Schedule and the user account number remaining sum of QoS grade and duration business, calculate the duration that the active user can use altogether;

In PPAQ, return DurationQuota and DurationThreshold indication duration quota and duration thresholding according to duration distribution and thresholding control principle.

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