CN108377561A - A kind of Gx interface sessions method for building up, PGW and network system - Google Patents
A kind of Gx interface sessions method for building up, PGW and network system Download PDFInfo
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- CN108377561A CN108377561A CN201610966005.9A CN201610966005A CN108377561A CN 108377561 A CN108377561 A CN 108377561A CN 201610966005 A CN201610966005 A CN 201610966005A CN 108377561 A CN108377561 A CN 108377561A
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- terminal
- pgw
- access technology
- radio access
- request message
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/04—Interfaces between hierarchically different network devices
- H04W92/14—Interfaces between hierarchically different network devices between access point controllers and backbone network device
Abstract
The invention discloses a kind of Gx interface sessions method for building up, PGW and network systems, are related to field of communication technology, and method therein includes：PGW receives conversation establishing request message, and the radio access technology types information of terminal is carried in conversation establishing request message；PGW determines whether to establish Gx interface sessions with Policy and Charging Rules Function PCRF according to the radio access technology types information of terminal.Gx interface sessions method for building up, PGW and the network system of the present invention, the interaction of controllable NB IoT users and PCRF, reduce the configuration work amount of HSS and PGW, realize that NB IoT establish the global control of Gx sessions, it disclosure satisfy that when NB IoT users attachment at this stage without the demand interacted with PCRF, the workload of relevant configuration can be reduced in operation.
Description
Technical field
The present invention relates to a kind of field of communication technology more particularly to Gx interface sessions method for building up, PGW and network systems.
Background technology
It is all things on earth based on cellular narrowband Internet of Things (Narrow Band Internet of Things, abbreviation NB-IoT)
One important branch of internet.NB-IoT is implemented in cellular network, only consumes the bandwidth of about 180KHz, can directly dispose
In GSM network, UMTS network or LTE network, to reduce lower deployment cost, realize smooth upgrade.NB-IoT supports low power consuming devices
It is connected in the cellular data of wide area network.NB-IoT supports stand-by time length, the efficient connection to network connectivity requirements higher device.
It being defined according to technical need at this stage and standard, the communication feature of NB-IoT is to support low rate, high time delay, therefore, NB-IoT
Packet data network PDN connections be not necessarily to and PCRF (Policy Control and Charging Rules Function, plan
Slightly control and charging rule functions) Gx interface sessions are established, dedicated bearing is established for it, occupies resources of core network.
Currently, when NB-IoT and LTE shares core net, PGW (PDN Gateway, grouped data network gateway) needs base
Decide whether to establish Gx sessions to PCRF requests in specific policy, there are two types of the Gx interface sessions that scheme can control NB-IoT user
It establishes.One is on HSS be NB-IoT user contract, when terminal is reached the standard grade, MME to HSS obtain signing parameter, PGW according to
Charging Characteristics fields in the establishment conversation request message that the MME received is sent determine whether to establish
Gx interface sessions.Another kind is configured to IMSI/MSISDN/APN in PGW, and when terminal is reached the standard grade, PGW obtains what MME was sent
IMSI/MSISDN/APN information, and determine whether to establish Gx interface sessions according to IMSI/MSISDN/APN configurations.But it is existing
Control NB-IoT user establish Gx interface sessions scheme need new account or the configuration for increasing number section newly in PGW in HSS, match
Heavy workload is set, also, if not carrying out the configuration of newly-increased number section in the new account in HSS or in PGW in time, it can not be right
The foundation of the Gx interface sessions of NB-IoT user controls.
Invention content
In view of this, the invention solves a technical problem be to provide a kind of Gx interface sessions method for building up, PGW and
Network system.
According to an aspect of the present invention, a kind of Gx interface sessions method for building up is provided, including：Packet data gateway PGW
Receive conversation establishing request message, wherein the radio access technology types letter of terminal is carried in conversation establishing request message
Breath；The radio access technology types information according to the terminal determines whether and Policy and Charging Rules Function PCRF
Establish Gx interface sessions.
Optionally, the PGW determines whether to establish Gx with PCRF according to the radio access technology types information of the terminal
Interface session includes：Radio access technology types information of the PGW based on the terminal judges and the Gx interface sessions pair
Whether the terminal answered is based on cellular narrowband Internet of Things NB-IoT terminals；It is described if the terminal is NB-IoT terminals
PGW does not send Gx interface sessions to the PCRF and establishes request；If the terminal be NB-IoT terminals, the PGW to
The PCRF sends Gx interface sessions and establishes request, to establish Gx interface sessions.
Optionally, the PGW receives conversation establishing request message and includes：The PGW receives gateway SGW and sends
Establishment session request Create Session Request message.
Optionally, radio access technology types information of the PGW based on the terminal judges and the Gx interface sessions
Whether corresponding terminal is that NB-IoT terminals include：The PGW is extracted in the Create Session Request message
RAT type field values determine whether the terminal is NB-IoT terminals based on the RAT type field values；Wherein, described
RAT type fields are used to identify the radio access technology types of the terminal.
Optionally, mobile management entity MME receives the attach request that the terminal is sent；The MME is based on described attached
The radio access technology types information of terminal described in acquisition request；The MME is by the wireless access technology class with the terminal
Value corresponding to type information is filled in the RAT type fields in the Create Session Request message, and is passed through
The Create Session Request message is sent to the PGW by the SGW.
According to another aspect of the present invention, a kind of packet data gateway PGW is provided, including：Message reception module, for connecing
Receive conversation establishing request message, wherein the radio access technology types letter of terminal is carried in the conversation establishing request message
Breath；Session establishment control module, by being determined whether according to the radio access technology types information of the terminal with strategy with based on
Expense rule functional unit PCRF establishes Gx interface sessions.
Optionally, session establishment control module, including：Terminal type determination unit, for based on the wireless of the terminal
Access technology type information judges whether terminal corresponding with the Gx interface sessions is based on cellular narrowband Internet of Things NB-
IoT terminals；Session establishment unit does not send Gx interface meetings if being NB-IoT terminals for the terminal to the PCRF
Words establish request；If the terminal is not NB-IoT terminals, sends Gx interface sessions to the PCRF and establish request, to
Establish Gx interface sessions.
Optionally, the message reception module is specifically used for receiving the establishment session request that gateway SGW is sent
Create Session Request message.
Optionally, the terminal type determination unit is also extracted in the Create Session Request message
RAT type field values determine whether the terminal is NB-IoT terminals based on the RAT type field values；Wherein, described
RAT type fields are used to identify the radio access technology types of the terminal.
According to another aspect of the invention, a kind of network system is provided, including：Such as claim 6 to 9 any one of them
PGW。
Optionally, mobile management entity MME, the attach request sent for receiving the terminal, is asked based on the attachment
The radio access technology types information for obtaining the terminal is sought, corresponding to the radio access technology types information with the terminal
Value be filled in the RAT type fields in the Create Session Request message, and by the SGW by institute
It states Create Session Request message and is sent to the PGW.
Gx interface sessions method for building up, PGW and the network system of the present invention, PGW take according in conversation establishing request message
The radio access technology types information of the terminal of band judges whether terminal is NB-IoT terminals, controls the foundation of Gx interface sessions,
The interaction of controllable NB-IoT user and PCRF, reduce the configuration work amount of HSS and PGW, realize that NB-IoT establishes Gx sessions
Global control.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only
Some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, also
It can be obtain other attached drawings according to these attached drawings.
Fig. 1 is the flow diagram according to one embodiment of the Gx interface session method for building up of the present invention；
Fig. 2 is the interacting message schematic diagram according to another embodiment of the Gx interface session method for building up of the present invention；
Fig. 3 is the module diagram according to one embodiment of the PGW of the present invention；
Fig. 4 is the module diagram according to the session establishment control module of one embodiment of the PGW of the present invention；
Fig. 5 is the module diagram according to one embodiment of the network system of the present invention.
Specific implementation mode
With reference to the accompanying drawings to invention is more fully described, wherein illustrating exemplary embodiment of the present invention.Under
Face will combine the attached drawing in the embodiment of the present invention, and technical scheme in the embodiment of the invention is clearly and completely described, show
So, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the reality in the present invention
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the scope of protection of the invention.Various descriptions are carried out to technical scheme of the present invention with reference to each figure and embodiment.
Fig. 1 is according to the flow diagram of one embodiment of the Gx interface session method for building up of the present invention, such as Fig. 1 institutes
Show：
Step 101, PGW receives conversation establishing request message, and the wireless of terminal is carried in conversation establishing request message
Access technology type information.Wireless access information type includes：The types such as GSM, WCDMA, NB-IoT.
Step 102, PGW determines whether and strategy and charging rule functions according to the radio access technology types information of terminal
Unit PCRF establishes Gx interface sessions.
PCRF generates strategy and charging control rule, and dynamic provides application layer conversation information, according to user access network
Currently ongoing applied business information, local operator's configuration and user signing contract information formulate corresponding plan by limitation, user
Slightly.Interface between PGW and PCEF is Gx interfaces, and PGW and PCRF, which are established, safeguards and terminate Gx interface sessions, and Gx interface sessions can
Think that IP-CAN (IP Connectivity Access Network, IP connections access net) session, PGW/PCEF are asked to PCRF
Ask PCC regular, PCRF provides PCC rules to PGW/PCEF, negotiates IP-CAN carrying establishment models etc..PGW and PCRF passes through Gx
Interactive interfacing, establishes Gx interface sessions, and implementation strategy control establishes dedicated bearing for terminal.
Radio access technology types information of the PGW based on terminal judges terminal corresponding with the Gx interface sessions that request is established
Whether it is NB-IoT terminals, if terminal is NB-IoT terminals, PGW does not send Gx interface sessions to PCRF and establishes request, such as
Fruit terminal is not NB-IoT terminals, then PGW sends Gx interface sessions to PCRF and establishes request, to establish Gx interface sessions.
In one embodiment, it can be SGW (Serving GateWay, clothes that PGW, which receives conversation establishing request message,
Be engaged in gateway) send establishment session request Create Session Request message.In Create Session Request
The radio access technology types information of RAT type field carried terminals can be passed through in message.PGW extracts Create
RAT type field values in Session Request message determine whether terminal is NB-IoT based on RAT type field values
Terminal.
RAT type fields are used to identify the radio access technology types of terminal.For example, when RAT type field values are NB-
When IoT (or to represent the numerical value of NB-IOT), the radio access technology types of GC group connector are NB-IOT, i.e. user terminal is
NB-IOT terminals, then PGW to PCRF send Gx interface sessions establish request, do not establish dedicated bearing for NB-IOT terminals.
MME (Mobility Management Entity, mobile management entity) receives the attach request of terminal transmission.
MME obtains the radio access technology types of terminal, for example, NB-IoT etc. based on attach request.MME by NB-IoT (or be generation
The numerical value of table NB-IOT) it is filled in the RAT type fields in Create Session Request message, and will by SGW
Create Session Request message is sent to PGW.
Gx interface session method for building up in above-described embodiment, in NB-IoT and LTE (Long Term Evolution, length
Phase evolution) shared core net when, when terminal is adhered to, PGW is sent to the Create Session Request of PGW according to SGW
RAT type fields in message judge whether terminal is NB-IoT terminals, and then control the foundation of Gx sessions, and NB- may be implemented
IoT establishes the global control of Gx sessions, disclosure satisfy that the demand without being interacted with PCRF when NB-IoT user's attachment at this stage.
Fig. 2 is according to the interacting message schematic diagram of another embodiment of the Gx interface session method for building up of the present invention, such as
Shown in Fig. 2：
Step 201, user terminal is NB-IoT terminals, and NB-IoT terminals establish RRC (Radio Resource with base station
Control, wireless heterogeneous networks) connection.
Step 202, NB-IoT terminals send attach request to MME, carry RAT type fields, RAT type field values
Show that the radio access technology types of terminal are EUTRAN-NB-IOT.The network attachment request that NB-IoT terminals are sent to MME
May include the user identifier id information of the NB-IoT terminals, one UE user of User ID unique mark, User ID can be state
Border mobile identification number IMSI etc..
Step 203, MME carries out LTE network access mirror based on the user authentication information stored in HSS to NB-IoT terminals
Power.The access authentication flow of NB-IoT terminals can be the LTE authorizing procedures of standard.
Step 204, NB-IoT (or to represent the numerical value of NB-IOT) is filled in Create Session by MME
In RAT type fields in Request message, and Create Session Request message is sent to by PGW by SGW.
Step 205, PGW extracts the RAT type field values in Create Session Request message, is based on RAT
Type field values determine whether terminal is NB-IoT terminals.
Step 206, if terminal is NB-IoT terminals, PGW does not send Gx interface sessions to PCRF and establishes request, if
Terminal is not NB-IoT terminals, then PGW sends Gx interface sessions to PCRF and establishes request, to establish Gx interface sessions.
Step 207, PGW sends to SGW and MME and creates conversational response message.
Step 208, MME is sent to user terminal by response message is adhered to.
Step 209, attachment is completed.
Step 210, RRC Connection Releases.
The Gx interface session method for building up that above-described embodiment provides, PGW is according to the end carried in conversation establishing request message
The radio access technology types information at end judges whether terminal is NB-IoT terminals, controls the foundation of Gx interface sessions, can control
The interaction of NB-IoT user and PCRF reduce the configuration work amount of HSS and PGW, realize that NB-IoT establishes the overall situation of Gx sessions
Control.
In one embodiment, as shown in figure 3, the present invention provides a kind of packet data gateway PGW30, including：Message connects
Receive module 31, session establishment control module 32.Message reception module 31 receives conversation establishing request message, and conversation establishing request disappears
The radio access technology types information of terminal is carried in breath.Session establishment control module 32 is according to the wireless access technology of terminal
Type information determines whether to establish Gx interface sessions with Policy and Charging Rules Function PCRF.
As shown in figure 4, session establishment control module 32 includes：Terminal type determination unit 321 and session establishment unit
322.Radio access technology types information of the terminal type determination unit 321 based on terminal judges end corresponding with Gx interface sessions
End whether be based on cellular narrowband Internet of Things NB-IoT terminals, if terminal be NB-IoT terminals, session establishment unit 322
Gx interface sessions not being sent to PCRF and establishing request, if terminal is not NB-IoT terminals, session establishment unit 322 is to PCRF
It sends Gx interface sessions and establishes request, to establish Gx interface sessions.
Message reception module 31 receives the establishment session request Create Session Request that gateway SGW is sent
Message.Terminal type determination unit 322 extracts the RAT type field values in Create Session Request message, is based on
RAT type field values determine whether terminal is NB-IoT terminals, and RAT type fields are used to identify the wireless access technology of terminal
Type.
In one embodiment, the present invention provides a kind of network system, as shown in figure 5, network system includes：PGW54、
SGW53 and MME52.PGW54 is above-mentioned PGW, and MME52 receives the attach request that terminal is sent, and is obtained eventually based on attach request
The radio access technology types information at end 51, the value corresponding to the radio access technology types information with terminal 51 is filled in
In RAT type fields in Create Session Request message, and by SGW53 by Create Session
Request message is sent to PGW54.
Gx interface sessions method for building up, PGW and the network system that above-described embodiment provides share core in NB-IoT and LTE
When heart net, whether PGW judges terminal according to the radio access technology types information of the terminal carried in conversation establishing request message
For NB-IoT terminals, the foundation of Gx interface sessions is controlled, can control the interaction of NB-IoT user and PCRF, reduces HSS and PGW
Configuration work amount, realize that NB-IoT establishes the global control of Gx sessions, when disclosure satisfy that NB-IoT user's attachment at this stage without
The demand that need to be interacted with PCRF, also, operator is not necessarily to when carrying out NB-IOT network operations due to new account/new field
It is repeatedly configured in related network elements, workload can be reduced.
The method and system of the present invention may be achieved in many ways.For example, can by software, hardware, firmware or
Software, hardware, firmware any combinations come realize the present invention method and system.The said sequence of the step of for method is only
In order to illustrate, the step of method of the invention, is not limited to sequence described in detail above, especially says unless otherwise
It is bright.In addition, in some embodiments, also the present invention can be embodied as to record program in the recording medium, these programs include
For realizing machine readable instructions according to the method for the present invention.Thus, the present invention also covers storage for executing according to this hair
The recording medium of the program of bright method.
Description of the invention provides for the sake of example and description, and is not exhaustively or will be of the invention
It is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.It selects and retouches
It states embodiment and is to more preferably illustrate the principle of the present invention and practical application, and those skilled in the art is enable to manage
Various embodiments with various modifications of the solution present invention to design suitable for special-purpose.
Claims (11)
1. a kind of Gx interface sessions method for building up, which is characterized in that including：
Packet data gateway PGW receives conversation establishing request message, wherein carries end in the conversation establishing request message
The radio access technology types information at end；
The PGW is determined whether according to the radio access technology types information of the terminal and Policy and Charging Rules Function
PCRF establishes Gx interface sessions.
2. the method as described in claim 1, which is characterized in that the PGW is according to the radio access technology types of the terminal
Information determines whether that establishing Gx interface sessions with PCRF includes：
Radio access technology types information of the PGW based on the terminal judges that terminal corresponding with the Gx interface sessions is
No is based on cellular narrowband Internet of Things NB-IoT terminals；
If the terminal is NB-IoT terminals, the PGW does not send Gx interface sessions to the PCRF and establishes request；
If the terminal is not NB-IoT terminals, the PGW sends Gx interface sessions to the PCRF and establishes request, to
Establish Gx interface sessions.
3. method as claimed in claim 2, which is characterized in that the PGW receives conversation establishing request message and includes：
The PGW receives the establishment session request Create Session Request message that gateway SGW is sent.
4. method as claimed in claim 3, which is characterized in that radio access technology types of the PGW based on the terminal
Information judges whether terminal corresponding with the Gx interface sessions is that NB-IoT terminals include：
The PGW extracts the RAT type field values in the Create Session Request message, is based on the RAT
Type field values determine whether the terminal is NB-IoT terminals；
Wherein, the RAT type fields are used to identify the radio access technology types of the terminal.
5. method as described in claim 3 or 4, which is characterized in that further include：
Mobile management entity MME receives the attach request that the terminal is sent；
The MME obtains the radio access technology types information of the terminal based on the attach request；
Value corresponding to radio access technology types information with the terminal is filled in the Create by the MME
In RAT type fields in Session Request message, and by the SGW by the Create Session
Request message is sent to the PGW.
6. a kind of packet data gateway PGW, which is characterized in that including：
Message reception module, for receiving conversation establishing request message, wherein carry end in the conversation establishing request message
The radio access technology types information at end；
Session establishment control module, by being determined whether according to the radio access technology types information of the terminal with strategy with based on
Expense rule functional unit PCRF establishes Gx interface sessions.
7. PGW as claimed in claim 6, which is characterized in that
Session establishment control module, including：
Terminal type determination unit judges and the Gx interfaces meeting for the radio access technology types information based on the terminal
Talk about whether corresponding terminal is based on cellular narrowband Internet of Things NB-IoT terminals；
Session establishment unit, if being NB-IoT terminals for the terminal, not sending Gx interface sessions to the PCRF builds
Vertical request；If the terminal is not NB-IoT terminals, sends Gx interface sessions to the PCRF and establish request, to establish
Gx interface sessions.
8. PGW as claimed in claim 7, which is characterized in that
The message reception module is specifically used for receiving the establishment session request Create Session that gateway SGW is sent
Request message.
9. PGW as claimed in claim 8, which is characterized in that
The terminal type determination unit also extracts the RAT type fields in the Create Session Request message
Value, determines whether the terminal is NB-IoT terminals based on the RAT type field values；
Wherein, the RAT type fields are used to identify the radio access technology types of the terminal.
10. a kind of network system, which is characterized in that including：
Such as claim 6 to 9 any one of them PGW.
11. network system as claimed in claim 10, which is characterized in that further include：Mobile management entity MME and gateway
SGW；
MME, the attach request sent for receiving the terminal, the wireless access of the terminal is obtained based on the attach request
Value corresponding to radio access technology types information with the terminal is filled in the Create by type of skill information
In RAT type fields in Session Request message, and by the SGW by the Create Session
Request message is sent to the PGW.
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