CN108616833B

CN108616833B - Method, device and system for processing PCC conversation, PGW and PCRF

Info

Publication number: CN108616833B
Application number: CN201611127802.4A
Authority: CN
Inventors: 马雪菲; 樊士杨
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Group Sichuan Co Ltd
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Group Sichuan Co Ltd
Priority date: 2016-12-08
Filing date: 2016-12-08
Publication date: 2021-03-09
Anticipated expiration: 2036-12-08
Also published as: CN108616833A

Abstract

The invention discloses a method, a device and a system for processing a PCC conversation, a PGW and a PCRF. Wherein, the method comprises the following steps: responding to a request of activating the PCC conversation by the terminal, and forwarding the request of the PCC conversation; receiving feedback of PCC session authority of the terminal; and when the feedback indicates that the terminal does not have the PCC session right, releasing the PCC session resources of the terminal. On one hand, by releasing the established PCC resources, not only can a large amount of PCC resources be saved, but also the authorized PCC conversation can be ensured to be smoothly carried out. On the other hand, by releasing the PCC resource in time, the subsequent signaling message is omitted, and the network paging times and the system load are greatly reduced.

Description

Method, device and system for processing PCC conversation, PGW and PCRF

Technical Field

The present invention relates to the technical field of wireless communication, and in particular, to a method, an apparatus, a system for processing a Policy Control and Charging (PCC) session, a Packet Gateway (PGW) and a Policy and Charging Rule Function (PCRF).

Background

With the rapid development of communication technology, data services gradually become mainstream services. In the PCC architecture closely associated with data traffic, the PGW and PCRF establish a PCC SESSION (IP-CAN SESSION, IP connection access network SESSION) through the Gx interface.

Currently, when a user terminal uses a data service, a PGW forwards a data service request of the terminal to a PCRF. PCRF authenticates terminal and establishes PCC conversation resource for all users. And then, the PCRF provides parameters or actions and the like adapted to the PCC session to the subscriber so as to ensure that the subscriber can carry out the PCC session. In addition, the PCRF provides a non-subscriber with default parameters or actions or the like that are not adapted to the PCC session, so that the non-subscriber cannot perform the PCC session. Because the PCRF establishes the PCC session resource no matter whether the PCC subscriber is the PCC subscriber or not, and releases the PCC session resource until the PCC session is ended, a large number of non-subscribers not only waste a large number of PCRF resources, but also affect the access of normal subscribers and the development and use of services such as VOLTE (Voice over LTE).

Disclosure of Invention

In view of one or more of the above problems, embodiments of the present invention provide a method, an apparatus, a system, a PGW, and a PCRF for processing a PCC session.

In a first aspect, an embodiment of the present invention provides a method for processing a PCC session, which is applied to a terminal activation phase on a PGW side, and includes the following steps:

responding to a request of activating the PCC conversation by the terminal, and forwarding the request of the PCC conversation;

receiving feedback of PCC session authority of the terminal;

and when the feedback indicates that the terminal does not have the PCC session right, releasing the PCC session resources of the terminal.

In a second aspect, an embodiment of the present invention provides a method for processing a PCC session, where the method is applied to a PCRF side, and the method includes:

receiving a request for a PCC session of a terminal;

authenticating the PCC session authority of the terminal based on the received request of the PCC session and generating an authentication result;

and feeding back the generated authentication result.

In a third aspect, an embodiment of the present invention provides a method for processing a PCC session, where the method includes:

the PGW responds to the request of the terminal for activating the PCC conversation and forwards the request of the PCC conversation to the PCRF;

the PCRF receives a request of a PCC session;

PCRF authenticates PCC conversation authority of the terminal and generates an authentication result;

the PCRF sends the generated authentication result to the PGW;

and the PGW receives the authentication result, and when the authentication result indicates that the terminal does not have the PCC session right, the PGW releases the PCC session resources of the terminal between the PGW and the PCRF.

In a fourth aspect, an embodiment of the present invention provides a device for processing a PCC session, where the device is applied to a terminal activation phase on a PGW side, and the device includes:

a request forwarding unit, configured to forward a request for a PCC session in response to a request for activating the PCC session by a terminal;

a feedback receiving unit, configured to receive feedback of PCC session permission for the terminal;

and the resource releasing unit is used for releasing the PCC session resources of the terminal when the feedback indicates that the terminal does not have the PCC session right.

In a fifth aspect, an embodiment of the present invention provides a device for processing a PCC session, where the device is applied to a PCRF side, and includes:

a request receiving unit, configured to receive a request for a PCC session;

the session authentication unit authenticates the PCC session authority of the terminal based on the received request of the PCC session and generates an authentication result;

and the result feedback unit is used for feeding back the generated authentication result.

In a sixth aspect, an embodiment of the present invention provides a PGW, including:

a processing device for a PCC session according to the fourth aspect.

In a seventh aspect, an embodiment of the present invention provides a PCRF, including:

a processing device for a PCC session according to the fifth aspect.

In an eighth aspect, an embodiment of the present invention provides a system for processing a PCC session, where the system includes:

a processing device for a PCC session according to the fourth and fifth aspects.

On one hand, the embodiment of the invention can save a large amount of PCC resources and ensure that the PCC conversation with the authority is smoothly carried out by releasing the established PCC resources.

On the other hand, the embodiment of the invention omits the subsequent signaling message by releasing the PCC resource in time, thereby greatly reducing the network paging times and the system load.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of a system architecture that may be used with embodiments of the present invention.

Fig. 2 is a schematic flow chart of a processing method of a PCC session according to an embodiment of the present invention.

Fig. 3 is a schematic flow chart of a PCC session processing method according to another embodiment of the present invention.

Fig. 4 is a schematic flow chart of a PCC session processing method according to yet another embodiment of the present invention.

Fig. 5 is a functional structure diagram of a processing device for a PCC session according to an embodiment of the present invention.

Fig. 6 is a functional structure diagram of a processing device for a PCC session according to another embodiment of the present invention.

Fig. 7 is a schematic block diagram of a processing device for a PCC session according to another embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

FIG. 1 is a system architecture diagram 100 that may be used in embodiments of the present invention.

As shown in fig. 1, the system architecture may include: terminals 101 (2), base station 102, network 103, PGW104, PCRF105, and the like. Wherein:

the terminal 101 may be various communication devices including, but not limited to, a mobile phone, a personal handphone system, an intercom, a tablet computer, and the like. The terminal can be provided with various communication client applications, such as an instant messaging tool, a mailbox client, social platform software, audio and video software and the like. The mobile terminal may perform various communication services through the network, including services such as call, internet access, video, and Voice over LTE (Voice over LTE).

The base station 102 refers to a radio transceiver station for information transfer with the terminal 101 through a mobile communication switching center in a certain radio coverage area. The base station 102 may be a GSM (Global System for Mobile Communication) base station, a CDMA (Code Division Multiple Access) base station, an LTE (Long Term Evolution) base station, and the like.

PGW104 may provide session management and bearer control, data forwarding, IP address assignment, and non-3 GPP user access for the user. PCRF105 may have traffic data flow detection, policy enforcement, and data flow-based charging functions. In the PCC architecture, PGW104 establishes a PCC session with PCRF105 through a Gx interface, and performs policy control.

Network 103 may provide a medium of communication links between terminal 101, base station 102, PGW104, and PCRF 105. Network 103 may include cables of various connection types, such as wired, wireless communication links, or fiber optics, among others.

It is understood that the numbers of terminals 101, base stations 102, PGW104 and PCRF105 in fig. 1 are merely illustrative. The number and the positions of the two can be flexibly adjusted according to actual needs.

Fig. 2 is a schematic flow chart diagram 200 of a method for processing a PCC session according to an embodiment of the present invention.

In this embodiment, the processing method of the PCC session may be applied to a terminal activation phase on a PGW side, and an implementation manner of the method may be executed by the PGW. It will be appreciated that in other alternative embodiments may be performed by other devices.

As shown in fig. 2, in S201, the request for the PCC session is forwarded in response to the request for activating the PCC session by the terminal.

In S202, feedback on PCC session rights of the terminal is received.

Wherein, the PCC conversation authority of the terminal comprises: whether the terminal belongs to a subscription terminal. The subscribed content may be a PCC service subscribed by a PCC user.

In S203, when the feedback indicates that the terminal does not have the PCC session right, releasing the PCC session resource of the terminal.

Wherein the feedback indicating that the established PCC session does not have permission may be represented by an error code. The specific code can be a combination of different numbers and/or characters, and the method content can be flexibly set according to actual requirements.

Specifically, in this embodiment, by improving the PGW, after initiating a CCR-I request message to the PCRF in the user activation stage and authenticating the CCR-I request message as a non-PCC subscribed user, an error code is fed back to the PGW, and then the PGW actively releases the established session resource according to the relevant error code and converts the session resource into a non-PCC subscribed user, so as to directly end the PCC session of the user and actively release the established session resource.

Therefore, in the embodiment, the user-level session information of the non-signed PCC service between the PCRF and the PGW is released in time, so that the PCC user without the subscription relationship is prevented from occupying the same resource information between the PCC and the PGW as the user with the PCC subscription relationship. The effective utilization of system resources and transmission bandwidth between the PCC and the PGW is realized, and the cost investment of the PGW, PCC hardware and software is saved by more than one third according to the current network model.

In application prospect, after sending the CCR-I message to the PCRF in the activation phase, the present embodiment omits subsequent CCR/a-T messages, and then the PGW converts the CCR/a-T message into a non-subscriber user according to a relevant error code, thereby directly ending the PCC session of the user and actively releasing established session resources. The method can save the user from initiating the CCR-T flow before the off-line in the original mode, and can also reduce the PCRF load and license resources, so that non-signed users do not occupy PCC conversation any more, thereby saving the PCRF resources, ensuring the use of normal signed users and VOLTE users, reducing the network paging times and the system load to the maximum extent, and simultaneously reducing the extra time delay added by the users under extreme conditions, thereby improving the user perception.

As a modified embodiment of the embodiment shown in fig. 2, the following steps can be added to the embodiment shown in fig. 2:

and judging whether the terminal has a preset type of service and/or a preset position area service.

And when the judgment result indicates that the terminal has the preset type of service and/or the preset position area, taking over the preset type of service and/or the preset position area.

It is to be understood that the term "and/or" herein is merely one type of association relationship describing an associated object, meaning that three types of relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone.

Specifically, the PCC policy may face three scenarios: respectively effective for users, service type and location area. The user-oriented validation policy must have a subscription relationship, and the service type and location area validation policy may not have a subscription relationship. After the PGW and the PCRF are improved, session resources of the user without the PCC subscription relationship between the PGW and the PCRF are released, which may also cause failure of the service-oriented policy and the location-oriented policy during the user deactivation period. However, in order to ensure that the user can continuously use the function, the original partial function of the PCRF needs to be modified and implemented on the PGW side. The specific scenes are as follows:

1. through PGW function improvement, a service and location strategy processing module (or unit) is added, and the newly added function module respectively has the following functions: a. the service type and the position area which need to be managed can be configured in the service and position strategy processing module in advance through the external unified interface of the PGW; b. after the user is activated, the user is converted into a non-PCC user, and after the service type is pre-configured in the PGW in the use of related service matching, the PGW directly manages the user; and c, after the user is activated, the user is converted into a non-PCC user, and then the user is switched to a position area which is configured in advance in a position type strategy processing module of the PGW, and then the PGW directly manages the user. Such as: the high-flow low-value P2P service is converted into a non-PCC service, and the rule is directly triggered by matching the P2P service type preset in the newly added service type module in the PGW, so that the QoS value is managed when the user accesses the service, and the like.

2. After a service and location type policy processing module is newly added in the PGW, the policy is taken into effect for the service and location area, and the original mode is changed into a mode of judging and realizing the policy at the PCRF to be directly managed by the PGW aiming at the non-PCC user. The specific application case is as follows:

a) for location area marketing of non-PCC users, after the non-PCC users are switched to the designated location cells and matched with the cell information configured in the newly added location management function module in the PGW according to the location cell information carried in the signaling messages of the non-PCC users, the PGW can perform related management to the users, such as QoS management, charging management or redirection and other functions.

b) Aiming at the service type management of the non-PCC user, when the service type accessed by the non-PCC user is matched with the service type configured in the newly added service management module in the PGW, the PGW directly manages the user, such as QoS management, charging management or redirection and other functions.

It can be understood that other service types can be flexibly processed according to actual needs.

On one hand, the embodiment can save a large amount of PCC resources and ensure that the PCC session with the permission is smoothly performed by releasing the established PCC resources in time.

On the other hand, by releasing the PCC resource in time, the subsequent signaling message is omitted, and the network paging times and the system load are greatly reduced.

As a first variant embodiment of the processing method of the PCC session in this embodiment, the following steps may be added on the basis of the embodiment shown in fig. 2:

receiving a PCC session ending request sent by a terminal;

based on the PCC session ending request, the PCC session is ended.

Therefore, the PCC session strategy is further provided for the session with the authority, the session requirement of the user can be further met, and the user experience is improved.

Fig. 3 is a schematic flow chart diagram 300 of a method for processing a PCC session according to another embodiment of the present invention.

In this embodiment, the processing method of the PCC session may be applied to the PCRF side, and an implementation manner of the method may be executed by the PCRF. It will be appreciated that in other alternative embodiments may be performed by other devices.

As shown in fig. 3, in S301, a request for a PCC session of a terminal is received.

In S302, the PCC session authority of the terminal is authenticated based on the received PCC session request, and an authentication result is generated.

In S303, the generated authentication result is fed back.

Wherein the authentication comprises identifying whether the terminal belongs to a subscription terminal.

In the existing network, the PCRF has the functions of policy management and user subscription management, and the PGW has the function of performing actions such as QoS management, charging control, redirection, and the like for the user. In this embodiment, on the basis of the modification of the PGW, a PCRF function is also modified correspondingly, after it is determined that the user is a non-PCC subscribed user in the original manner, the PCRF also feeds back a normal response message to the PGW to acquire normal session establishment information, and feeds back an error code to the PGW for the user without a PCC subscription relationship after the PCRF function is improved, so as to release related session resource information.

Fig. 4 is a schematic flow chart diagram 400 of a method for processing a PCC session according to yet another embodiment of the present invention.

In this embodiment, the implementation manner of the processing method for the PCC session may be executed by the terminal, the PGW, and the PCRF, respectively. It will be appreciated that in other alternative embodiments may be performed by other devices.

As shown in fig. 4, in S401, the terminal sends a request for a PCC session to the PGW.

In S402, the PGW responds to the request for activating the PCC session by the terminal, and forwards the request for the PCC session to the PCRF.

In S403, the PCRF receives a request for a PCC session.

In S404, the PCRF authenticates the PCC session authority of the terminal, and generates an authentication result.

In S405, the PCRF sends the generated authentication result to the PGW.

In S406, the PGW receives the authentication result and determines whether the PCC session has the right.

In S407, when the authentication result indicates that the terminal does not have the PCC session right, the PGW releases the PCC session resource of the terminal with the PCRF.

In S408, the PGW does not release the resources.

It should be noted that, the foregoing embodiments may be combined and applied in different degrees, and for simplicity, implementation manners of various combinations are not described again, and a person skilled in the art may flexibly adjust the sequence of the operation steps in the foregoing embodiments according to actual needs, or flexibly combine the above steps, and the like.

In the existing network, the PCRF has the functions of policy management and user subscription management, and the PGW has the function of performing actions such as QoS management, charging control, redirection, and the like for the user. The various embodiments described above are primarily improved in two ways.

The embodiment can be applied to the terminal activation phase on the PGW side. As shown in fig. 5, the processing apparatus 500 for a PCC session may include: a request forwarding unit 501, a feedback receiving unit 502 and a resource releasing unit 503. Wherein:

the request forwarding unit 501 may be configured to forward the request for the PCC session in response to the request for activating the PCC session by the terminal. The feedback receiving unit 502 may be configured to receive feedback on PCC session permission of the terminal. The resource releasing unit 503 may be configured to release the PCC session resource of the terminal when the feedback indicates that the terminal does not have the PCC session right.

It should be noted that the implementation manner of the functional units or the functional modules shown in the present embodiment may be hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the invention are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.

As a variation of the embodiment shown in fig. 5, the following steps may be added to the processing apparatus of the PCC session in the embodiment shown in fig. 5: the system comprises a service judging unit and a service processing unit. Wherein:

the service determination unit may be configured to determine whether the terminal has a service of a preset type and/or a service of a preset location area. The service processing unit may be configured to take over processing of the service of the preset type and/or the service of the preset location area when the determination result indicates that the terminal has the service of the preset type and/or the service of the preset location area.

The embodiment can be applied to the PCRF side. As shown in fig. 6, a processing apparatus 600 for a PCC session may include: a request receiving unit 601, a session authentication unit 602 and a result feedback unit 603. Wherein:

the request receiving unit 601 may be configured to receive a request for a PCC session. The session authentication unit 602 may be configured to authenticate the PCC session authority of the terminal based on the received request of the PCC session, and generate an authentication result. The result feedback unit 603 may be configured to feed back the generated authentication result.

As an alternative embodiment, the processing device for the PCC session may include: memory, processor, and display. Wherein:

the memory may be used to store programs. The processor may be configured to execute a program stored in the memory, the program causing the processor to:

responding to a request of activating the PCC conversation by the terminal, and forwarding the request of the PCC conversation; receiving feedback of PCC session authority of the terminal; and when the feedback indicates that the terminal does not have the PCC session right, releasing the PCC session resources of the terminal.

The display may be used to display an interface during PCC session processing.

It can be understood that each functional unit in the processing apparatus for PCC session may be combined and applied in different degrees, and for simplicity, implementation manners of various combinations are not described again, and those skilled in the art may flexibly adjust each functional unit described above or perform operations such as flexible combination according to actual needs. In addition, when each of the above-described functional units is specifically configured, as long as a specific function can be realized, a specific manufacturing method, a model of a product, or the like is not limited, and a connection positional relationship of each functional unit is not limited.

It should be noted that the processing device of the PCC session in each embodiment may be used as an execution main body in the processing method of the PCC session in each embodiment, and may implement corresponding processes in each method, and the contents in each embodiment may be referred to and used for each other, and for brevity, the contents are not described again.

Fig. 7 is a schematic block diagram of a processing apparatus for a PCC session according to an embodiment of the present invention.

As shown in fig. 7, the apparatus may include a Central Processing Unit (CPU)701, which may perform the following processing according to a program stored in a Read Only Memory (ROM)702 or a program loaded from a storage section into a Random Access Memory (RAM) 703:

In the RAM703, various programs and data necessary for system operation are also stored. The CPU701, the ROM702, and the RAM703 are connected to each other through a communication bus. An input/output (I/O) interface is also connected to the bus.

The following components are connected to the I/O interface 704: an input section 705 including a keyboard, a mouse, and the like; an output section 706 including a display such as a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, and a speaker; a storage section 707 including a hard disk and the like; and a communication section 708 including a network interface card such as a LAN card, a modem, or the like. The communication section 708 performs communication processing via a network such as the internet. A driver 709 is also connected to the I/O interface as needed. A removable medium 710 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive as necessary, so that a computer program read out therefrom is mounted into the storage section 707 as necessary.

In addition, an embodiment of the present invention provides a PGW, where the PGW may include a processing device for a PCC session in the embodiment and the variant embodiments shown in fig. 5.

An embodiment of the present invention provides a PCRF, which may include a processing device for a PCC session in the embodiment shown in fig. 6 and its modified embodiments.

Yet another embodiment of the present invention provides a system for processing a PCC session, where the system may include a processing device for the PCC session in the embodiment and the variant embodiments thereof shown in fig. 5, and the system may further include a processing device for the PCC session in the embodiment and the variant embodiments thereof shown in fig. 6.

It is to be appreciated that the processing system for the PCC session may also include resources such as network devices, computing devices, and the like.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A method for processing PCC session is applied to a terminal activation phase at a PGW side, and is characterized by comprising the following steps: responding to a request of a terminal for activating a PCC session, and forwarding the request of the PCC session;

receiving feedback of PCC session authority of the terminal;

when the feedback indicates that the terminal does not have the PCC conversation right, releasing the PCC conversation resources of the terminal;

judging whether the terminal has a preset type of service and/or a preset position area service;

and taking over the preset type of service and/or the preset position area when the judgment result indicates that the terminal has the preset type of service and/or the preset position area of service.

2. The method of claim 1, wherein the PCC session rights of the terminal comprise: whether the terminal belongs to a subscription terminal.

3. A method for processing a PCC session, comprising the steps of: the PGW responds to a request of a terminal for activating the PCC conversation and forwards the request of the PCC conversation to the PCRF;

the PCRF receiving a request for the PCC session;

the PCRF authenticates the PCC session authority of the terminal and generates an authentication result;

the PCRF sends the generated authentication result to the PGW;

4. A processing device for a PCC session is applied to a terminal activation phase at a PGW side, and is characterized by comprising: a request forwarding unit, configured to forward a request for a PCC session in response to a request for activating the PCC session by a terminal;

a feedback receiving unit, configured to receive feedback on a PCC session permission of the terminal;

a resource releasing unit, configured to release PCC session resources of the terminal when the feedback indicates that the terminal does not have the PCC session right;

a service judging unit, configured to judge whether the terminal has a service of a preset type and/or a service of a preset location area;

and the service processing unit is used for taking over and processing the preset type of service and/or the preset position area when the judgment result indicates that the terminal has the preset type of service and/or the preset position area of service.

5. A system for processing a PCC session, comprising: the apparatus for processing a PCC session according to claim 4.

6. A PGW, comprising: the apparatus for processing a PCC session according to claim 4.