CN106912117A - The method and chain of command node of a kind of selection user face nodes - Google Patents
The method and chain of command node of a kind of selection user face nodes Download PDFInfo
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- CN106912117A CN106912117A CN201510970824.6A CN201510970824A CN106912117A CN 106912117 A CN106912117 A CN 106912117A CN 201510970824 A CN201510970824 A CN 201510970824A CN 106912117 A CN106912117 A CN 106912117A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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Abstract
The present invention provides the method and chain of command node of a kind of selection user face nodes, and the method includes：Chain of command node for terminal device can United Dispatching data cube computation group determine with it is described can United Dispatching data cube computation group the targeted customer face node that matches of demand；The chain of command node carries out information exchange and configuration with targeted customer face node.In the embodiment of the present invention by chain of command node with can the data cube computation group of United Dispatching the selection of user face nodes is carried out as granularity, and carry out information exchange and configuration with the targeted customer face node for determining, complete user face data configuration；Enable the targeted customer face node and the difference that determine can the demand of data cube computation group of United Dispatching match, the overall service efficiency of lifting system resource realizes the user face nodes selection under control forwarding separation architecture.
Description
Technical field
The present invention relates to communication technical field, the method and chain of command of more particularly to a kind of selection user face nodes
Node.
Background technology
In the mobile communication network, PGW (Packet Data Network Gateway, packet data gateway)
Both there is chain of command function (processing control signaling) with SGW (Serving Gateway, gateway),
There are user plane functions (forwarding packet) again.When the chain of command and user plane functions of PGW and SGW
It is split as after different network elements, operator can in a network dispose multiple user face nodes, it is therefore desirable to enter
Row user face nodes are selected；Further, because EPC (4G core networks) system permission user is when any
Application more users face resource (for example, bigger bandwidth etc.) is waited, if with PDN (public data network)
Connection granularity carries out user face nodes selection and appears in have enough available in other user face nodes of gateway
Resource but refuses asking for user's application new resources because of the current user face nodes inadequate resource for carrying customer flow
Topic.
It is as shown in Figure 1 mobile communications network framework, by taking non-roaming scene as an example.
(1) SGW selections
SGW selections refer to MME (mobile management entity) and select a SGW that service is provided for UE.
The selection operation is performed according to network topology, i.e., selected SGW can provide service in the location of UE,
Preferred SGW is changed the minimum SGW of probability by MME.Load balancing between SGW is also SGW choosings
The criterion selected.When the SGW IP address that dns server is returned includes weight parameter (weight factor),
If necessary to consider load balancing, MME selects SGW using the parameter.For a specific SGW,
General relative capacity according to the SGW and between the SGW of other same tracking area offer services is set should
The weight parameter of SWG.
If MME supports GTP-C (tunneling protocol) load controls, when MME selects SGW,
MME not only considers the weight parameter received from DNS (domain name system) server, it is also contemplated that from SGW
The load information for receiving.
(2) PGW selections
CAMEL-Subscription-Information and other criterion (examples that MME is provided using HSS (home signature user server)
Such as SIPTO (IP data distributions)/LIPA (this of each APN (APN) of configuration in MME
Ground IP is accessed) support information, the load balancing between PGW etc.) for UE selects PGW.When DNS clothes
When the PGW IP address that business device is returned includes weight parameter, if requiring load balancing, MME selections PGW
When use the parameter.For a specific PGW, typically according to the PGW and other and same APN phases
Relative capacity between the PGW of pass sets the weight parameter of the PGW.
When MME supports GTP-C (tunneling protocol) load control functions, except dns server
Outside the weight parameter of return, the load information received from PGW is further contemplated during MME selection PGW.
PDN (public data network) CAMEL-Subscription-Information that HSS is provided includes：
The mark of-APN and PGW, or
- APN, and whether allow to distribute PGW from VPLMN (virtual public land mobile communication network)
Or whether PGW should be distributed from HPLMN (home public land mobile network network)；
- alternatively, for an APN, if allow for the APN perform SIPTO above RAN (
Resident's access network carries out IP data distributions) and/or SIPTO at the Local Network (enter in local network
Row IP data distributions)；
- alternatively, and for an APN, perform LIPA and be conditional on, it is forbidding or support.
PGW selections can support that static PGW is selected, and specific implementation is that the APN of configuration is mapped into one
Individual specific PGW, or the PGW marks that HSS is provided are a static state PGW.
When UE has been coupled to one or more PDN, connected to set up to a PDN, UE exists
APN is provided in request message, for PGW selections.If wrapped in the PDN signing contexts that HSS is provided
Include a wildcard APN (wild card APN), then can be used any APN of UE requests to set up PDN
Connection.If HSS provides the mark of the PGW of static allocation, or HSS provides the PGW of dynamically distributes
Mark and request type be " switching ", then need not perform PGW select.If HSS provides dynamic
The mark of the PGW of distribution, HSS provide the PGW simultaneously where PLMN identification information.
If HSS provides the mark of the PGW of dynamically distributes, and request type is " initial request ", then
PGW or select new PGW that HSS is provided can be used.If the APN of PDN connections supports SIPTO,
Then should chosen distance UE the near PGW in position.PGW marks refer to a specific PGW.Such as
Fruit PGW marks include IP address, then the address is the IP address of PGW, and otherwise PGW marks include
One FQDN, MME parse the IP address of PGW using DNS functions.
If the PDN signing contexts that HSS is provided allow to distribute PGW from VPLMN for the APN, and
And the configuration information in MME can be shown that there is roaming agreement between VPLMN and HPLMN, MME from
VPLMN derives a PGW mark.If cannot derive PGW identify, or signing do not allow from
VPLMN distributes PGW, then derive that PGW is identified from HPLMN using APN.MME according to
APN, subscription data and other information derive that PGW is identified using DNS functions.If PGW is identified
It is logical name, is not IP address, then MME identifies the protocol type with S5/S8 interfaces using PGW
(PMIP or GTP) performs dns resolution.The S8 that each HPLMN is configured with MME/SGSN connects
Mouth agreement.
When UE provides APN, if the signing context that HSS is provided allows UE to use the APN,
Then MME derives that PGW is identified using the APN.If having had the PDN related to APN to connect
Connect, then MME should select same PGW.
In the conventional method, MME is responsible for selecting SGW and PGW, when the chain of command of SGW and PGW
After being separated with user plane, MME can select the chain of command section of SGW and PGW according to existing method
Point (is designated as SGW-C, PGW-C), and the corresponding user face nodes of chain of command node are probably multiple,
Therefore need further to carry out the selection of user face nodes.Existing selection mechanism cannot complete to be forwarded in control
The user face nodes selection work of SGW, PGW under separation architecture.Further, current mechanism only with
The selection of SGW, PGW is carried out when the initial attachment in family and switching etc., there are multiple use in SGW, PGW
During node (being designated as SGW-U, PGW-U) of family face, do not account for subsequently setting up new bearer (carrying)
When the user face nodes inadequate resource that has selected or load imbalance situation.
The content of the invention
It is an object of the invention to provide the method and chain of command node of a kind of selection user face nodes, solve
Current mechanism cannot complete the problem of the user face nodes selection work under control forwarding separation architecture.
In order to achieve the above object, the embodiment of the present invention provides a kind of method for selecting user face nodes, including：
Chain of command node for terminal device can United Dispatching data cube computation group determine with it is described can United Dispatching
Data cube computation group the targeted customer face node that matches of demand；
The chain of command node carries out information exchange and configuration with targeted customer face node.
Wherein, the chain of command node for terminal device can United Dispatching data cube computation group determine with it is described
Can United Dispatching data cube computation group demand match targeted customer face node the step of include：
The chain of command node according to presupposed information for terminal device can United Dispatching data cube computation group determine
With it is described can United Dispatching data cube computation group the targeted customer face node that matches of demand.
Wherein, the presupposed information includes QoS requirement, the position of the terminal device of the carrying
Information, the loading condition of each user face nodes, the deployed position information of each user face nodes, subsequently go out
The probability of existing chain of command node switching, follow-up probability, each user face nodes for user face nodes switching occur
One or more in the professional ability that can be supported and the selection strategy being pre-configured with.
Wherein, it is described can the data cube computation group of United Dispatching be to carry, the carrying of the terminal device includes：
Default bearing；
Wherein, the selection strategy being pre-configured with includes：First choice corresponding with the default bearing of terminal
Strategy.
Wherein, the first choice strategy includes：
It is determined that the user face nodes for having carried the default bearing of most quantity are targeted customer face node；Or
It is determined that the user face nodes for having carried minimal number of default bearing are targeted customer face node；Or
It is determined that it is targeted customer face node that current all default bearings take the most user face nodes of broadband resource.
Wherein, the carrying of the terminal device also includes：Dedicated bearing；
Wherein, the selection strategy being pre-configured with also includes：Corresponding with the dedicated bearing of terminal device
Two selection strategies.
Wherein, second selection strategy includes：
The user face nodes for being determined to carry at most guarantee bit rate GBR flows are targeted customer face node；
Or
It is determined that the user face nodes for having carried minimum maximum bit rate MBR flows are targeted customer face node.
Wherein, the step of chain of command node carries out information exchange and configuration with targeted customer face node
Including：
The chain of command node carries out information exchange and configuration to carry granularity with targeted customer face node；
Wherein, interactive information at least includes：The user plane information of general packet radio service technology tunnel protocol and
Full dose Tunnel End Point Identifier；The configuration at least includes：Instruction user face node carries out resource reservation.
Wherein, when needing to carry out information exchange and configuration with non-bearing granularity and user face nodes, the side
Method also includes：
The chain of command node determines the carrying being related to, and respectively with each corresponding user face nodes of carrying
Carry out information exchange and configuration.
The embodiment of the present invention also provides a kind of chain of command node, including：
Determining module, for for terminal device can United Dispatching data cube computation group determine unify with described
The targeted customer face node that the demand of the data cube computation group of scheduling matches；
Interactive module, for carrying out information exchange and configuration with targeted customer face node.
Wherein, the determining module includes：
First determination sub-module, for according to presupposed information for terminal device can United Dispatching data cube computation
Group determine with it is described can United Dispatching data cube computation group the targeted customer face node that matches of demand.
Wherein, the presupposed information includes QoS requirement, the position of the terminal device of the carrying
Information, the loading condition of each user face nodes, the deployed position information of each user face nodes, subsequently go out
The probability of existing chain of command node switching, follow-up probability, each user face nodes for user face nodes switching occur
One or more in the professional ability that can be supported and the selection strategy being pre-configured with.
Wherein, it is described can the data cube computation group of United Dispatching be to carry, the carrying of the terminal device includes silent
Recognize carrying；
Wherein, the selection strategy being pre-configured with includes：First choice corresponding with the default bearing of terminal
Strategy.
Wherein, the first choice strategy includes：
It is determined that the user face nodes for having carried the default bearing of most quantity are targeted customer face node；Or
It is determined that the user face nodes for having carried minimal number of default bearing are targeted customer face node；Or
It is determined that it is targeted customer face node that current all default bearings take the most user face nodes of broadband resource.
Wherein, the carrying of the terminal device also includes：Dedicated bearing；
Wherein, the selection strategy being pre-configured with also includes：Corresponding with the dedicated bearing of terminal device
Two selection strategies.
Wherein, second selection strategy includes：
The user face nodes for being determined to carry at most guarantee bit rate GBR flows are targeted customer face node；
Or
It is determined that the user face nodes for having carried minimum maximum bit rate MBR flows are targeted customer face node.
Wherein, the interactive module includes：
Interaction submodule, for carrying out information exchange and configuration with targeted customer face node to carry granularity；
Wherein, interactive information at least includes：The Tunneling Protocol-User face information of general packet radio service technology and
Full dose Tunnel End Point Identifier；The configuration at least includes：Instruction user face node carries out resource reservation.
Wherein, the chain of command node also includes：
Configuration interactive module, for when needs carry out information exchange with non-bearing granularity and user face nodes and match somebody with somebody
When putting, it is determined that the carrying being related to, and with each corresponding user face nodes of carrying information exchange is carried out respectively
And configuration.
The embodiment of the present invention also provides a kind of chain of command node, including：Processor；And by EBI
The memory being connected with the processor, the memory is used to store the processor when operation is performed
The program and data for being used, when processor calls and perform the program and data stored in the memory
When, realize following functional module：
Determining module, for for terminal device can United Dispatching data cube computation group determine unify with described
The targeted customer face node that the demand of the data cube computation group of scheduling matches；
Interactive module, for carrying out information exchange and configuration with targeted customer face node.
Above-mentioned technical proposal of the invention at least has the advantages that：
In the method and chain of command node of the selection user face nodes of the embodiment of the present invention, by chain of command node
With can the data cube computation group of United Dispatching the selection of user face nodes is carried out as granularity, and used with the target for determining
Family face node carries out information exchange and configuration, completes user face data configuration；So that the targeted customer face for determining
Node can with difference can the demand of data cube computation group of United Dispatching match, the entirety of lifting system resource
Service efficiency, realizes the user face nodes selection under control forwarding separation architecture.
Brief description of the drawings
Fig. 1 represents mobile communications network configuration diagram in the prior art；
Fig. 2 represents the basic step flow chart of the method for selection user face nodes provided in an embodiment of the present invention；
Fig. 3 represents the signaling interaction diagram of the first embodiment of present invention offer；
Fig. 4 represents the signaling interaction diagram of the second embodiment of present invention offer；
Fig. 5 represents the signaling interaction diagram of the 3rd embodiment of present invention offer；
Fig. 6 represents the composition structural representation of chain of command node provided in an embodiment of the present invention.
Specific embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with attached
Figure and specific embodiment are described in detail.
As shown in Fig. 2 the embodiment of the present invention provides a kind of method for selecting user face nodes, including：
Step 21, chain of command node for terminal device can United Dispatching data cube computation group determine with it is described can
The targeted customer face node that the demand of the data cube computation group of United Dispatching matches；
Step 22, the chain of command node carries out information exchange and configuration with targeted customer face node.
In the above embodiment of the present invention, chain of command node can be the chain of command of gateway SGW, also may be used
Being the chain of command of packet data gateway PGW；User face nodes can be the user plane of SGW, it is also possible to
It is the user plane of PGW.In the embodiment of the present invention terminal device can the data cube computation group of United Dispatching can be
Carry bearer, or other data cube computation groups, such as PDN connections etc..Chain of command node is carried out
When user face nodes are selected, loading condition, positional information of each user face nodes etc. are considered as, can be with base
In DNS, the mode such as provisioning information is selected.
It should be noted that the embodiment of the present invention is applicable to SGW and PGW and closing and setting scene and be equally applicable to
SGW's and PGW sets up scene separately.The selection of chain of command node is according to existing gateway in the embodiment of the present invention
System of selection is carried out, and the selection of user face nodes is completed by chain of command node, improves user plane money
The service efficiency in source, it is to avoid user plane has enough resources and because the user plane inadequate resource selected causes
The situation of the new resource bid of refusal user.
Specifically, step 21 includes in the above embodiment of the present invention：
Step 211, the chain of command node according to presupposed information for terminal device can United Dispatching data connect
Connect group determine with it is described can United Dispatching data cube computation group the targeted customer face node that matches of demand.
Wherein, the presupposed information includes QoS requirement, the position of the terminal device of the carrying
Information, the loading condition of each user face nodes, the deployed position information of each user face nodes, subsequently go out
The probability of existing chain of command node switching, follow-up probability, each user face nodes for user face nodes switching occur
Can be supported professional ability (for example, if support deep-packet detection DPI, using the teaching of the invention it is possible to provide service quality
QoS disposal abilities etc.) and the selection strategy that is pre-configured with one or more.
It should be noted that domain name system of chain of command node described in the embodiment of the present invention from the terminal device
System DNS, mobile management entity MME, pre-configuration data, user face nodes or strategy and charging regulation work(
Can unit PCRF etc. obtain the presupposed information.Above-mentioned acquisition source is only preferred mode of the invention,
Other are obtained in that the source of above-mentioned presupposed information is applied to the present invention, do not enumerate one by one herein.
In the above embodiment of the present invention, chain of command node carries out user face nodes based on above-mentioned presupposed information
Selection, when there are multiple user face nodes in gateway, it is contemplated that subsequently set up it is new can United Dispatching
Data cube computation group when the user face nodes inadequate resource that has selected or load imbalance situation, improve user plane
The service efficiency of resource.
Specifically, when presupposed information is the selection strategy being pre-configured with, being walked in the above embodiment of the present invention
Rapid 21 also include：
Step 213, the chain of command node is the tune unified of terminal device according to the selection strategy being pre-configured with
The data cube computation group of degree determine with it is described can United Dispatching data cube computation group the targeted customer that matches of demand
Face node.
Specifically, it is described can the data cube computation group of United Dispatching be to carry, the carrying of the terminal device includes
Default bearing；Wherein, the selection strategy being pre-configured with includes：Corresponding with the default bearing of terminal
One selection strategy.
Further, the carrying of the terminal device also includes：Dedicated bearing；Wherein, it is described to be pre-configured with
Selection strategy also include：The second selection strategy corresponding with the dedicated bearing of terminal device.
In the above embodiment of the present invention, the phase that chain of command node is pre-configured with according to the demand of different bearer
The selection strategy answered, the overall service efficiency of lifting system resource；The type for wherein carrying generally comprises acquiescence
Carrying, dedicated bearing.Chain of command node supports to be each SGW, PGW point in the embodiment of the present invention simultaneously
The strategy of different user face nodes selections, i.e. chain of command node are not configured supports dynamic adjustment user face nodes
The carrier policy of selection；Simultaneously operator can also flexible configuration selection strategy instruct the chain of command node to enter
The selection of row forwarding surface node, is easy to operator to adjust offered load in time according to service needed and O＆M situation.
Specifically, including for the first choice strategy of default bearing：
It is determined that the user face nodes for having carried the default bearing of most quantity are targeted customer face node, the strategy
It is easy to bandwidth resources to estimate；Or
It is determined that the user face nodes for having carried minimal number of default bearing are targeted customer face node, the strategy
The impacted number of users of default bearing can be reduced in failure；Or
It is determined that it is targeted customer face node that current all default bearings take the most user face nodes of broadband resource,
The strategy can reduce the influence that default bearing is carried to other.
It should be noted that above-mentioned three kinds of first choice strategies are only the preferable strategy of the embodiment of the present invention, it is real
Any of the above strategy, any combination also tactful more than can be used in the application of border, it can be also used
He is tactful, and differ a citing herein.
Specifically, including for the second selection strategy of dedicated bearing：
The user face nodes for being determined to carry at most guarantee bit rate GBR flows are targeted customer face node,
The strategy is to ensure the load balancing of user plane；Or
It is determined that the user face nodes for having carried minimum maximum bit rate MBR flows are targeted customer face node,
The strategy can avoid user plane from being impacted by larger instantaneous delivery.
Explanation is needed also exist for, the selection strategy of above two second is only the preferable strategy of the embodiment of the present invention,
Any of the above strategy, any combination also tactful more than can be used in practical application, can also be used
Other strategies, differ a citing herein.
Specifically, step 22 includes in the above embodiment of the present invention：
Step 221, the chain of command node carries out information exchange to carry granularity with targeted customer face node
And configuration；Wherein, interactive information at least includes：The user of general packet radio service technology tunnel protocol
Face information (GTU-P) and full dose Tunnel End Point Identifier (F-TEID)；The configuration at least includes：Indicate to use
Family face node carries out resource reservation.
Further, when need trigger user plane non-bearing granularity (such as PDN connection granularity, UE
Degree) information exchange and/or during configuration, that is, need to carry out information exchange with non-bearing granularity and user face nodes
During with configuration, methods described also includes：
Step 23, the chain of command node determines the carrying being related to, and respectively with each corresponding use of carrying
Family face node carries out information exchange and configuration.That is chain of command node checks relevant bearer information and its corresponding use
Family face node, be translated into carrying granularity and respectively with corresponding user face nodes complete interaction.
For the method flow of clearer description selection user face nodes provided in an embodiment of the present invention, below
The method of the present invention is described in detail in conjunction with specific embodiments：
First embodiment
As shown in figure 3, when the type for carrying is default bearing, being used in the initial attaching process of user
The selection of family face node, i.e., during the connection of grouped data network PDN is created, the chain of command of gateway
(SGW-C) establishment conversation request message, SGW-C selection services are received from mobile management entity MME
The user plane (SGW-U) of gateway；The chain of command (PGW-C) of packet data gateway is received from SGW-C
Conversation request message is created, PGW-C selects the user plane (PGW-U) of packet data gateway.Detailed process
It is as follows：
Step 31, mobile management entity MME sends to SGW-C and creates conversation request message.
Step 32, SGW-C is that the default bearing (default bearer) of the user selects suitable SGW-U.
Because this step is only default bearer selection SGW-U, therefore it is not required to consider that follow-up other bearer are possible
Resource requirement；Specifically, SGW-C can be based on the weight information of each SGW-U, each SGW-U load feelings
Condition, the positional information of UE, the deployed position information of each SGW-U, subsequently there is SGW-C/SGW-U more
The probability that changes, each SGW-U can be supported professional ability (available QoS disposal abilities of e.g. etc.), fortune
Any combination of battalion business strategy or other factorses is selected；And operator can be suitable for default with pre-configured
The selection strategy of bearer, the SGW-U for for example preferably having carried most default bearer (is easy to bandwidth to provide
Estimate in source), the SGW-U that has preferably carried minimum number default bearer (default bearer are reduced during failure
Impacted number of users), the preferably current most SGW-U of all default bearer occupied bandwidth resources
(reducing influences of the default bearer to other bearer) etc..
Step 33, SGW-C carries out necessary information and interacts with selected SGW-U, including but not limited to transmits
The GTP-U (user plane of the tunnel protocol of general packet radio service technology) of SGW sides, F-TEID are (complete
Amount Tunnel End Point Identifier), indicate SGW-U carry out resource reservation etc..The step 33 is optional step, is not
Must be completed before step 34.
Step 34, SGW-C is sent to PGW-C and creates conversation request message, and SGW sides are carried in message
GTP-U and F-TEID.
Step 35, PGW-C is that the default bearer of the user select suitable PGW-U.Due to this step
Suddenly it is only default bearer selection PGW-U, therefore is not required to consider the possible resource requirements of follow-up other bearer.
Specifically, PGW-C can be based on the weight information of each PGW-U, each PGW-U loading conditions, UE
Positional information, the deployed position information of each PGW-U, the follow-up probability for PGW-C/PGW-U replacings occur,
Each PGW-U can be supported professional ability (available QoS disposal abilities of e.g. etc.), carrier policy or
Any combination of other factorses is selected；And operator can be with the pre-configured choosing for being suitable for default bearer
Select strategy, for example preferably carried most default bearer PGW-U (being easy to bandwidth resources to estimate),
It is preferred that the PGW-U for having carried minimum number default bearer (reduces default bearer impacted during failure
Number of users), the preferably current most PGW-U of all default bearer occupied bandwidth resources (reduces
Influences of the default bearer to other bearer) etc..
Step 36, PGW-C carries out necessary information and interacts with selected PGW-U, including but not limited to transmits
The GTP-U and F-TEID of SGW sides, the GTP-U and F-TEID of transmission PGW sides, instruction PGW-U
Carry out resource reservation etc..
Step 37, PGW-C is sent to SGW-C and creates conversational response message, and PGW sides are carried in message
GTP-U and F-TEID.
Step 38, SGW-C carries out necessary information and interacts with selected SGW-U, including but not limited to transmits
GTP-U and F-TEID of PGW sides etc..
Step 39, SGW-C sends to MME and creates conversational response message.
Second embodiment
As shown in figure 4, when the type for carrying is dedicated bearing, in dedicated bearing activation, PGW-C
For the dedicated bearing reselects PGW-U；SGW-C receives establishment bearer request messages from PGW-C,
SGW-C reselects SGW-U for the dedicated bearing.Detailed process is as follows：
Step 41, when deploying dynamic PCC (dynamic strategy and charging control function), PCRF (strategy with
Charging rule functions) PCC decision offer message (decision provision message) is sent to PGW；
When not disposing dynamic PCC, PGW can trigger this flow using local qos policy.
Step 42, PGW-C is that the dedicated bearing (dedicated bearer) of the user selects suitable PGW-U.
The PGW-U can overlap with the PGW-U for carrying default bearer (default bearing), it is also possible to not weigh
Close；PGW-C can be based on the QoS demand of the dedicated bearer, the weight information of each PGW-U,
Each PGW-U loading conditions, the positional information of UE, the positional information of each PGW-U, subsequently there is PGW-U
The probability of replacing, each PGW-U can be supported professional ability (whether support DPI, it is possible to provide QoS treatment
Ability etc.), any combination of carrier policy or other factorses selected；And operator can be with pre-configured suitable
It is suitable for the selection strategy of dedicated bearer, the PGW-U that for example can preferably carry most GBR flows is (negative
Carry balanced), preferably carried the PGW-U (avoiding being subject to the impact of larger instantaneous delivery) of minimum MBR flows
Deng.
Step 43, PGW-C carries out necessary information and interacts with selected PGW-U, including but not limited to transmits
The GTP-U of PGW sides, F-TEID, instruction PGW-U carry out resource reservation etc.；This step is optional step,
And this step is not required to be completed before step 44.
Step 44, PGW-C is sent to SGW-C and creates bearer request messages, and PGW is carried in message
The GTP-U and F-TEID of side.
Step 45, SGW-C is that the dedicated bearer of the user select suitable SGW-U.The SGW-U
Can be overlapped with the SGW-U for carrying default bearer, it is also possible to misaligned.Specifically, SGW-C can
Loaded with the QoS demand based on the dedicated bearer, the weight information of each SGW-U, each SGW-U
Situation, the positional information of UE, the positional information of each SGW-U, the follow-up probability for SGW-U replacings occur,
Each SGW-U can be supported professional ability (whether support DPI, it is possible to provide QoS disposal abilities etc.), fortune
Any combination of battalion business strategy or other factorses is selected；And operator can be suitable for pre-configured
The selection strategy of dedicated bearer, the SGW-U that for example can preferably carry most GBR flows (is loaded equal
Weighing apparatus), the SGW-U (avoid be subject to larger instantaneous delivery impact) that has preferably carried minimum MBR flows etc..
Step 46, SGW-C carries out necessary information and interacts with selected SGW-U, including but not limited to transmits
The GTP-U and F-TEID of PGW sides, the GTP-U and F-TEID of transmission SGW sides, instruction SGW-U
Carry out resource reservation etc..The step be optional step, and this step be not required it is complete before step 47,48
Into.
Step 47, SGW-C sends to MME and creates bearer request messages.
Step 48, MME sends to SGW-C and creates bearer response messages.
Step 49, SGW-C indicates SGW-U to complete the configuration of user face data.
Step 410, SGW-C sends to PGW-C and creates bearer response messages.
Step 411, PGW-C indicates PGW-U to complete the configuration of user face data.
Step 412, when needed, completes IP CAN Session Modification between PGW-C and PCRF
(modification of IP connected references BlueDrama) flow.
3rd embodiment
As shown in figure 5, when the non-granularity (such as PDN connections granularity, UE granularities) for needing triggering user plane
Information exchange and/or configuration when, i.e., the present embodiment describes Service Request (service request) flow.
SGW-C after the modification bearer request messages for receiving the PDN connection granularities that MME sends, with the PDN
The corresponding SGW-U of all bearer that connection includes carry out information exchange and configuration respectively.Detailed process is as follows：
Step 51, MME sends modification bearer request messages with PDN connection granularities to SGW-C.
Step 52, SGW-C inquires about the corresponding SGW-U of all bearer difference that PDN connections are included.
Step 53, each SGW-Us of the SGW-C respectively with acquisition in step 2 is interacted, and is completed to forwarding
The configuration in face.
Step 54, SGW-C sends modification bearer response messages to MME.
To sum up, the method for the selection user face nodes for being provided using the above embodiment of the present invention carries out user plane
The method of node can improve the service efficiency of user plane resource, it is to avoid user plane there is enough resources and because
The SGW-U/PGW-U inadequate resources selected cause to refuse the situation of the new resource bid of user；And can be with
Corresponding selection strategy, the overall service efficiency of lifting system resource are formulated according to the demand of different bearer；
Another operator can instruct the chain of command node to carry out the selection of forwarding surface node with flexible configuration selection strategy, just
Offered load is adjusted in time according to service needed and O＆M situation in operator；And it is provided in an embodiment of the present invention
Method is applied to SGW/PGW and closes the forwarding surface node selection for setting scene and setting up scene separately.
In order to preferably realize above-mentioned purpose, as shown in fig. 6, the embodiment of the present invention also provides a kind of chain of command
Node, including：
Determining module 61, for for terminal device can United Dispatching data cube computation group determine united with described
The targeted customer face node that the demand of the data cube computation group of one scheduling matches；
Interactive module 62, for carrying out information exchange and configuration with targeted customer face node.
Specifically, determining module includes described in the above embodiment of the present invention：
First determination sub-module, for according to presupposed information for terminal device can United Dispatching data cube computation
Group determine with it is described can United Dispatching data cube computation group the targeted customer face node that matches of demand.
Specifically, in the above embodiment of the present invention, the presupposed information includes the service quality of the carrying
Demand, the positional information of the terminal device, the loading condition of each user face nodes, each user plane section
The deployed position information of point, the follow-up probability for the switching of chain of command node occur, follow-up there are user face nodes and cut
In the probability that changes, the professional ability that each user face nodes can be supported and the selection strategy being pre-configured with
One or more.
Specifically, described in the above embodiment of the present invention can United Dispatching data cube computation group be carry, institute
The carrying for stating terminal device includes default bearing；Wherein, the selection strategy being pre-configured with includes：With end
The corresponding first choice strategy of default bearing at end.
Specifically, first choice strategy described in the above embodiment of the present invention includes：
It is determined that the user face nodes for having carried the default bearing of most quantity are targeted customer face node；Or
It is determined that the user face nodes for having carried minimal number of default bearing are targeted customer face node；Or
It is determined that it is targeted customer face node that current all default bearings take the most user face nodes of broadband resource.
Specifically, the carrying of terminal device described in the above embodiment of the present invention also includes：Dedicated bearing；
Wherein, the selection strategy being pre-configured with also includes：Corresponding with the dedicated bearing of terminal device
Two selection strategies.
Specifically, the second selection strategy includes described in the above embodiment of the present invention：
The user face nodes for being determined to carry at most guarantee bit rate GBR flows are targeted customer face node；
Or
It is determined that the user face nodes for having carried minimum maximum bit rate MBR flows are targeted customer face node.
Specifically, interactive module includes described in the above embodiment of the present invention：
Interaction submodule, for carrying out information exchange and configuration with targeted customer face node to carry granularity；
Wherein, interactive information at least includes：The user plane information of the tunnel protocol of general packet radio service technology
With full dose Tunnel End Point Identifier；The configuration at least includes：Instruction user face node carries out resource reservation.
Specifically, chain of command node described in the above embodiment of the present invention also includes：
Configuration interactive module, for when needs carry out information exchange with non-bearing granularity and user face nodes and match somebody with somebody
When putting, it is determined that the carrying being related to, and with each corresponding user face nodes of carrying information exchange is carried out respectively
And configuration.
It should be noted that the chain of command node that the above embodiment of the present invention is provided is using above-mentioned selection user
The chain of command node of the method for face node, then all embodiments of the method for above-mentioned selection user face nodes are suitable
For the chain of command node, and can reach same or analogous beneficial effect.
In order to preferably realize above-mentioned purpose, the embodiment of the present invention also provides a kind of chain of command node, including：
Processor；And the memory being connected with the processor by EBI, the memory is for depositing
Program and data that the processor is used when operation is performed are stored up, when processor is called and performs described depositing
When the program and data that are stored in reservoir, following functional module is realized：
Determining module, for for terminal device can United Dispatching data cube computation group determine unify with described
The targeted customer face node that the demand of the data cube computation group of scheduling matches；
Interactive module, for carrying out information exchange and configuration with targeted customer face node.
It should be noted that the chain of command node that the above embodiment of the present invention is provided is using above-mentioned selection user
The chain of command node of the method for face node, then all embodiments of the method for above-mentioned selection user face nodes are suitable
For the chain of command node, and can reach same or analogous beneficial effect.
The above is the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made,
These improvements and modifications also should be regarded as protection scope of the present invention.
Claims (19)
1. it is a kind of select user face nodes method, it is characterised in that including：
Chain of command node for terminal device can United Dispatching data cube computation group determine with it is described can United Dispatching
Data cube computation group the targeted customer face node that matches of demand；
The chain of command node carries out information exchange and configuration with targeted customer face node.
2. it is according to claim 1 selection user face nodes method, it is characterised in that the control
Face node for terminal device can United Dispatching data cube computation group determine with it is described can United Dispatching data connect
Connect group demand match targeted customer face node the step of include：
The chain of command node according to presupposed information for terminal device can United Dispatching data cube computation group determine
With it is described can United Dispatching data cube computation group the targeted customer face node that matches of demand.
3. the method for selection user face nodes according to claim 2, it is characterised in that described default
Information include it is described can United Dispatching data cube computation group QoS requirement, the position of the terminal device
Information, the loading condition of each user face nodes, the deployed position information of each user face nodes, subsequently go out
The probability of existing chain of command node switching, follow-up probability, each user face nodes for user face nodes switching occur
One or more in the professional ability that can be supported and the selection strategy being pre-configured with.
4. it is according to claim 3 selection user face nodes method, it is characterised in that it is described to unite
The data cube computation group of one scheduling is to carry, and the carrying of the terminal device includes：Default bearing；
Wherein, the selection strategy being pre-configured with includes：First choice corresponding with the default bearing of terminal
Strategy.
5. it is according to claim 4 selection user face nodes method, it is characterised in that described first
Selection strategy includes：
It is determined that the user face nodes for having carried the default bearing of most quantity are targeted customer face node；Or
It is determined that the user face nodes for having carried minimal number of default bearing are targeted customer face node；Or
It is determined that it is targeted customer face node that current all default bearings take the most user face nodes of broadband resource.
6. it is according to claim 4 selection user face nodes method, it is characterised in that the terminal
The carrying of equipment also includes：Dedicated bearing；
Wherein, the selection strategy being pre-configured with also includes：Corresponding with the dedicated bearing of terminal device
Two selection strategies.
7. it is according to claim 6 selection user face nodes method, it is characterised in that described second
Selection strategy includes：
The user face nodes for being determined to carry at most guarantee bit rate GBR flows are targeted customer face node；
Or
It is determined that the user face nodes for having carried minimum maximum bit rate MBR flows are targeted customer face node.
8. it is according to claim 1 selection user face nodes method, it is characterised in that the control
The step of face node carries out information exchange and configuration with targeted customer face node includes：
The chain of command node carries out information exchange and configuration to carry granularity with targeted customer face node；
Wherein, interactive information at least includes：The user plane information of general packet radio service technology tunnel protocol and
Full dose Tunnel End Point Identifier；The configuration at least includes：Instruction user face node carries out resource reservation.
9. it is according to claim 8 selection user face nodes method, it is characterised in that when need with
When non-bearing granularity carries out information exchange and configuration with user face nodes, methods described also includes：
The chain of command node determines the carrying being related to, and respectively with each corresponding user face nodes of carrying
Carry out information exchange and configuration.
10. a kind of chain of command node, it is characterised in that including：
Determining module, for for terminal device can United Dispatching data cube computation group determine unify with described
The targeted customer face node that the demand of the data cube computation group of scheduling matches；
Interactive module, for carrying out information exchange and configuration with targeted customer face node.
11. chain of command nodes according to claim 10, it is characterised in that the determining module includes：
First determination sub-module, for according to presupposed information for terminal device can United Dispatching data cube computation
Group determine with it is described can United Dispatching data cube computation group the targeted customer face node that matches of demand.
12. chain of command nodes according to claim 11, it is characterised in that the presupposed information includes
It is described can the QoS requirement of data cube computation group of the United Dispatching, positional information of the terminal device, every
The loading condition of individual user face nodes, the deployed position information of each user face nodes, subsequently there is chain of command
The probability of node switching, the follow-up probability for user face nodes switching occur, each user face nodes can be supported
Professional ability and the selection strategy that is pre-configured with one or more.
13. chain of command nodes according to claim 12, it is characterised in that it is described can United Dispatching
Data cube computation group is to carry, and the carrying of the terminal device includes：Default bearing；
Wherein, the selection strategy being pre-configured with includes：First choice corresponding with the default bearing of terminal
Strategy.
14. chain of command nodes according to claim 13, it is characterised in that the first choice strategy
Including：
It is determined that the user face nodes for having carried the default bearing of most quantity are targeted customer face node；Or
It is determined that the user face nodes for having carried minimal number of default bearing are targeted customer face node；Or
It is determined that it is targeted customer face node that current all default bearings take the most user face nodes of broadband resource.
15. chain of command nodes according to claim 13, it is characterised in that the terminal device holds
Load also includes：Dedicated bearing；
Wherein, the selection strategy being pre-configured with also includes：Corresponding with the dedicated bearing of terminal device
Two selection strategies.
16. chain of command nodes according to claim 15, it is characterised in that second selection strategy
Including：
The user face nodes for being determined to carry at most guarantee bit rate GBR flows are targeted customer face node；
Or
It is determined that the user face nodes for having carried minimum maximum bit rate MBR flows are targeted customer face node.
17. chain of command nodes according to claim 10, it is characterised in that the interactive module includes：
Interaction submodule, for carrying out information exchange and configuration with targeted customer face node to carry granularity；
Wherein, interactive information at least includes：The Tunneling Protocol-User face information of general packet radio service technology and
Full dose Tunnel End Point Identifier；The configuration at least includes：Instruction user face node carries out resource reservation.
18. chain of command nodes according to claim 17, it is characterised in that the chain of command node is also
Including：
Configuration interactive module, for when needs carry out information exchange with non-bearing granularity and user face nodes and match somebody with somebody
When putting, it is determined that the carrying being related to, and with each corresponding user face nodes of carrying information exchange is carried out respectively
And configuration.
A kind of 19. chain of command nodes, it is characterised in that including：Processor；And by EBI and institute
The memory that processor is connected is stated, the memory is made for storing the processor when operation is performed
Program and data, when processor is called and performs the program and data that are stored in the memory,
Realize following functional module：
Determining module, for for terminal device can United Dispatching data cube computation group determine unify with described
The targeted customer face node that the demand of the data cube computation group of scheduling matches；
Interactive module, for carrying out information exchange and configuration with targeted customer face node.
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