CN101553021A - Method, device and system for acquiring access network information - Google Patents
Method, device and system for acquiring access network information Download PDFInfo
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- CN101553021A CN101553021A CNA2008100664505A CN200810066450A CN101553021A CN 101553021 A CN101553021 A CN 101553021A CN A2008100664505 A CNA2008100664505 A CN A2008100664505A CN 200810066450 A CN200810066450 A CN 200810066450A CN 101553021 A CN101553021 A CN 101553021A
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Abstract
The embodiment of the invention provides a method for acquiring access network information. A home network selecting function entity in a home network of UE is set to be capable of communicating with a visited network selecting function entity in a visited network; the home network selecting function entity and the visited network selecting function entity of the UE are communicated to determine access network discovering and select auxiliary information for being transmitted to the UE, and then, the auxiliary information is transmitted to the UE. The embodiment of the invention also provides a system and a device for acquiring the access network information. Each embodiment of the invention enables the UE to acquire access network discovering and select auxiliary information, such as a visited place, and thus, the UE can select proper access networks to enable users to obtain better service.
Description
Technical field
The present invention relates to wireless communication technology field, specifically relate to a kind of Access Network information getting method, Apparatus and system.
Background technology
Along with to the radio communication service growth of requirement, increasing wireless communication technology or is stepped into the practical stage.For example, widely used have (a GSM/GPRS, Global System forMobile communications/General Packet Radio System) system, (UMTS, UniversalMobile Telecommunications System) system, (WLAN, Wireless Local AreaNetwork) system, and stepping into the practical stage (WiMAX, WorldwideInteroperability for Microwave Access) system etc. arranged.
For these wireless communication technologys, its wireless access technology has different separately ability characteristics and shortcoming.Such as, present gsm system can provide large-scale mobility and good speech business quality, but data service rate is very low; The UMTS system then can provide large-scale mobility and intermediate data rate, but the capacity of data service is less; Wlan system can provide high speed wireless data to insert, but can not provide mobility basically, and coverage is very little; The data service rate of WiMAX system and capacity still can only provide the wireless coverage in medium zone, and certain mobility can be provided all than higher.
This shows that any one independent wireless communication system all is difficult to satisfy simultaneously the user to the many-sided requirement of radio communication service, promptly mobility height, coverage are greatly, the speech business quality is good, the data service ability is strong etc.
Therefore, forming the trend of fusion between cordless communication network, promptly, providing service for the user jointly based on cordless communication network coexistence in certain zone of different radio access technologies.Such as, under the multiple wireless network and the situation of depositing, can provide corresponding access capability according to user's business demand, promptly select suitable access network to provide service for the user.
In multiple wireless network and the environment deposited, the user can obtain professional essential condition from suitable network and be: subscriber equipment (UE, User Equipment) can be known the wireless network which self current position has and can insert.UE and then can select suitable access network according to service needed after knowing this information.
Present a kind of UE of making can know that self current position has the implementation of the wireless network which can insert to be, is provided with one and possesses access network discovery and the entity of selecting support function in network, abbreviates the network selection functional entity as, as shown in Figure 1.Dispose the strategy that moves between system on the network selection functional entity, and can obtain the Access Network information in certain zone.The network selection functional entity can provide some auxiliary its to carry out the information of access network discovery and selection to UE according to position and the access capability of UE, for example the current available Access Network information of UE.UE can be to this network selection functional entity requests access network discovery and selection supplementary when these information of needs.Certainly, also can ask, but initiatively access network discovery is provided and select supplementary to UE by this network selection functional entity without UE.
In realizing process of the present invention, the inventor finds:
Network selection functional entity among Fig. 1 can only provide the information of the Access Network in certain zone, and this just selects suitable access network to cause bigger restriction to the UE under multiple wireless network and the dis environment.That is to say that in some cases, the network selection functional entity in the network can not provide the current needed access network discovery of this UE and select supplementary for UE.Such as, when UE when home network roams into visited network, UE need be known the access network discovery and selection supplementary in the visited network, and the network selection functional entity in the home network only can obtain shift strategy between the system of home-operator, do not visit the Access Network information on ground, thereby make UE can not obtain to visit the access network discovery and selection supplementary on ground, also just can't select suitable access network.
Summary of the invention
The technical problem underlying that each execution mode of the present invention will solve provides a kind of Access Network information getting method so that the access network discovery that the UE under multiple wireless network and the dis environment can obtain self place network without barrier with select supplementary.
The present invention has also solved the Apparatus and system that a kind of Access Network information is obtained simultaneously.
For solving above technical problem, various embodiments of the present invention provide following technical scheme:
A kind of Access Network information getting method of the embodiment of the invention,
Be provided with between the visited network selection functional entity in home network selection functional entity and the visited network in the home network of user terminal UE and can communicate by letter;
The home network selection functional entity of UE is used to send to the access network discovery and selection supplementary of UE with the visited network selection functional entity by the decision of communicating by letter, and sends to described UE.
A kind of Access Network Information Acquisition System of the embodiment of the invention,
Can communicate by letter between the visited network selection functional entity in home network selection functional entity in the home network of described system and the visited network;
The home network selection functional entity is used to send to the access network discovery and selection supplementary of UE with the visited network selection functional entity by the decision of communicating by letter, and sends to described UE.
A kind of network selection functional entity of the embodiment of the invention, described network selection functional entity is arranged in home network, and described home network selection functional entity can be communicated by letter with the visited network selection functional entity in the visited network; Described home network selection functional entity comprises transceiver module and decision module, wherein,
Described transceiver module is used for communicating by letter with the visited network selection functional entity, obtains the visit ground Access Network information of described UE, and sends to decision module;
Described decision module, be used for according to the described visit ground Access Network information of receiving, perhaps according to the described visit ground Access Network information of receiving, and policy information, decision is used to send to the access network discovery and selection supplementary of UE, and the information that is determined is sent to described UE by transceiver module.
The another kind of network selection functional entity of the embodiment of the invention, described network selection functional entity is arranged in visited network, and described visited network selection functional entity can be communicated by letter with the home network selection functional entity in the home network; Described visited network selection functional entity comprises transceiver module and decision module, wherein,
Described transceiver module is used for communicating by letter with the home network selection functional entity, obtains the policy information of UE, and sends to decision module;
Described decision module is used for the Access Network information according to this visit ground, and the policy information of receiving, decision is used to send to the access network discovery and selection supplementary of UE, and the information that is determined is sent to described UE by transceiver module.
Various embodiments of the present invention are by communicating by letter between the visited network selection functional entity in the home network selection functional entity in the home network that UE is set and the visited network, and the access network discovery that is used to send to UE by home network selection functional entity and visited network selection functional entity by the decision of communicating by letter with select supplementary, and send to described UE, make UE can obtain access network discovery and selection supplementary such as visit ground, thereby make UE can select suitable access network, make the user can obtain better service.
Description of drawings
Fig. 1 is for being provided with the structural representation of A in the network in the prior art;
The particular flow sheet of Fig. 2 for determining by the home network selection functional entity in the embodiment of the invention;
Fig. 3 is the message flow sequential chart that is started based on the request of UE by the home network selection functional entity in embodiment illustrated in fig. 2;
Fig. 4 is the message flow sequential chart that the request that sent by the visited network selection functional entity in embodiment illustrated in fig. 2 starts;
Fig. 5 is message flow sequential chart regular by the home network selection functional entity in embodiment illustrated in fig. 2 or that started by Event triggered;
The particular flow sheet of Fig. 6 for determining by the visited network selection functional entity in the embodiment of the invention;
Fig. 7 sends access network discovery and the message flow sequential chart of selecting the supplementary request by the visited network selection functional entity to the home network selection functional entity in embodiment illustrated in fig. 6;
Fig. 8 is the structural representation of UE and the direct communication of home network selection functional entity and home network selection functional entity and the direct communication of visited network selection functional entity;
Fig. 9 is UE and the direct communication of home network selection functional entity and home network selection functional entity and the visited network selection functional entity structural representation by entity indirect communication in the network;
Figure 10 is the structural representation of UE and the direct communication of visited network selection functional entity and home network selection functional entity and the direct communication of visited network selection functional entity;
Figure 11 is UE and the direct communication of visited network selection functional entity and home network selection functional entity and the visited network selection functional entity structural representation by entity indirect communication in the network.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
For the embodiment of the invention, at first need all to be provided with the network selection functional entity in the home network of UE and the visited network, be called home network selection functional entity and visited network selection functional entity, want between home network selection functional entity and the visited network selection functional entity and can communicate by letter.
For home network selection functional entity and visited network selection functional entity, can be by the direct communication of a roaming interface.
Can also communicate by other entities in self network, such as, if the home network selection functional entity in the home network is connected with authentication and authorization charging server (AAA Server) in this network, and the visited network selection functional entity in the visited network is acted on behalf of (AAA Proxy) with the authentication and authorization charging in this network and is connected, and AAA Server is connected by the roaming interface with AAA Proxy, then can carry out indirect communication by AAA Server and AAA Proxy between home network selection functional entity and the visited network selection functional entity.Certainly, based on this principle, also can change this AAA Server and AAA Proxy into other entity, such as, change AAA Server into ownership "Policy and Charging Rules Function entity (hPCRF), change AAA Proxy into visit "Policy and Charging Rules Function entity (vPCRF).
UE can directly communicate by letter with the home network selection functional entity, also can directly communicate by letter with the visited network selection functional entity.Wherein, the structural representation of UE and the direct communication of home network selection functional entity is shown in Fig. 8,9, and Fig. 8 directly is connected with the visited network selection functional entity for the home network selection functional entity, and Fig. 9 be the home network selection functional entity with the visited network selection functional entity by being connected with entity the AAA Proxy such as AAA Server.Similarly, the structural representation of UE and the direct communication of visited network selection functional entity is shown in Figure 10,11, and Figure 10 directly is connected with the visited network selection functional entity for the home network selection functional entity, and Figure 11 be the home network selection functional entity with the visited network selection functional entity by being connected with entity the AAA Proxy such as AAA Server.
Home network selection functional entity in the home network of UE is with after the visited network selection functional entity in the visited network can be communicated by letter, after UE roams into visit ground, can be by communicating by letter between this home network selection functional entity and the visited network selection functional entity, decide the access network discovery and selection supplementary that are used to send to UE, thereby make UE to select suitable access network with selecting supplementary according to the access network discovery that is obtained.
Be used to send to the access network discovery of UE and select supplementary for decision, a kind of method is that another kind of method is to be determined by the visited network selection functional entity by the decision of home network selection functional entity.Below these two kinds of determining methods are described in detail respectively.
For first kind of determining method, promptly determine by the home network selection functional entity, need the home network selection functional entity to obtain the Access Network information on this visit ground, and send to the access network discovery and selection supplementary of this UE according to the information decision needs of visit ground Access Network information of receiving and UE from the visited network selection functional entity.These class methods can strengthen home network operator is selected the Access Network behavior to UE control.
For the method by the decision of home network selection functional entity, the embodiment of the invention will be described in detail in conjunction with the accompanying drawings.
As shown in Figure 2, the corresponding following steps of the handling process of this embodiment of the invention:
The home network selection functional entity of step 201, UE is obtained the visit ground Access Network information of this UE by communicating by letter with the visited network selection functional entity.
In this step, the home network selection functional entity need be determined the visited network selection functional entity, specifically can directly be reported the relevant information of this visited network selection functional entity by UE, such as visited network sign etc.; Also can determine corresponding visited network selection functional entity according to the information of this UE by the home network selection functional entity, such as, determine the visited network at its current place according to this UE current position information, thereby determine corresponding visited network selection functional entity.
The visited network selection functional entity then needs to determine the visit ground Access Network information relevant with this UE, and sends to this home network selection functional entity.Specifically, need this visited network selection functional entity to obtain the positional information of this UE, and determine Access Network information relevant in this visit ground with this UE according to the positional information of this UE.
Wherein, the visited network selection functional entity is obtained the positional information of this UE, specifically can obtain by the home network selection functional entity, and promptly the home network selection functional entity sends to the visited network selection functional entity with this positional information; Can also obtain by UE, promptly this UE sends to the visited network selection functional entity on one's own initiative or based on the request of visited network selection functional entity with the positional information of this UE.
Certainly, the visited network selection functional entity can also further be determined the Access Network information relevant with this UE in the visit ground according to the relevant access network type of this UE.In this case, the visited network selection functional entity also needs to obtain the relevant access network type of this UE.Similarly, this access network type information can be determined and sent to the visited network selection functional entity, also can directly send to the visited network selection functional entity by UE by the home network selection functional entity.For the definite situation of home network selection functional entity, the home network selection functional entity can obtain the type of the Access Network that access capability or this UE asked of this UE according to the message that UE sends, determine the access network type that this UE is relevant, the home network selection functional entity can also be to determine the access network type that this UE is relevant according to strategy.
In this step, the home network selection functional entity specifically can be to decide this to be used to send to the access network discovery and selection supplementary of this UE according to visit ground Access Network information.Certainly, the home network selection functional entity can also be further according to the access capability of this UE, and/or determine according to policy information.Wherein, for the access capability of UE, can be to report the home network selection functional entity by UE, also can obtain by other approach by the home network selection functional entity.This policy information specifically can be the policy information that moves between system, or other policy informations of operator etc.Below be example among some embodiment with the policy information that moves between system.
Afterwards, UE can also go up the strategy of storage according to UE according to access network discovery that obtains in the step 202 and selection supplementary, carries out access network discovery and selection.
For the foregoing description, step 201 can start with selecting the supplementary request based on the access network discovery that UE sends, also can start with selecting the supplementary request based on the access network discovery that the visited network selection functional entity is sent, it can also be regular startup, or be subjected to specific events trigger and start, described particular event for example: receive the incident, the carrier policy that need to coordinate load between the indication, Access Network of network operation and management system and change, receive indication of other network entities etc.Respectively in conjunction with Fig. 3, Fig. 4 and Fig. 5, these three kinds of situations are described below.
For the situation that the home network selection functional entity starts based on the request of UE, the message flow sequential of this embodiment as shown in Figure 3, corresponding following steps:
Step 301, UE send access network discovery and select the supplementary request to the home network selection functional entity.
Can also carry the relevant information of this UE in this request message, such as the sign of this UE, the positional information of UE, the access capability of UE, the access network type of UE request etc.; And the relevant information that is used to find the visited network selection functional entity, such as being the visited network identification information.
Need to prove, the access network discovery of mentioning in this step and the subsequent step and selection supplementary request and similar message, it is a kind of specific implementation of the embodiment of the invention, be not defined as this message, other message also are fine, as long as can realize the purpose of association requests of the present invention, transmission of messages.
Step 302, home network selection functional entity send access network discovery and select the supplementary request to the visited network selection functional entity.
Can also carry the access network type indication in this message, be used to indicate the visited network selection functional entity that the Access Network information of particular type is provided, so that the visited network selection functional entity only need be returned the visit ground Access Network information of type indicated in the step 302.At this moment then need the home network selection functional entity can know the access network type that UE need obtain, as previously mentioned, specifically can be that UE directly carries the access network type of being asked in access network discovery that sends to the home network selection functional entity and the request of selection supplementary, can also be the home network selection functional entity determines the tenability of access technology etc. according to UE, can also be that the home network selection functional entity waits according to the ownership place strategy and selects some specific access network type.
Step 303, visited network selection functional entity are returned response, carry the information of visit ground Access Network in this response message.
As previously mentioned, the visited network selection functional entity can be determined the Access Network information on the visit ground relevant with this UE according to the positional information of this UE.The positional information of this UE can be obtained by the home network selection functional entity, also can directly send position requests to UE by the visited network selection functional entity, and returns the position response that comprises this UE positional information by this UE.
If also carried the access network type indication in access network discovery that above-mentioned steps 302 is sent and the request of selection supplementary, then the visited network selection functional entity can also be returned the visit ground Access Network information of respective type according to this access network type indication.
Step 304, home network selection functional entity are according to this visit ground Access Network information, and decision sends to the access network discovery and the content of selecting supplementary of this UE.
In addition, as previously mentioned, the home network selection functional entity can also be further according to shift strategy information between the access capability of this UE and/or local system, decide access network discovery that sends to this UE and the content of selecting supplementary.Certainly, if the home network selection functional entity has indicated the visited network selection functional entity to return some specific access network type in abovementioned steps 302, then in the step 304, the home network selection functional entity just can not need to have determined according to the relevant informations such as access capability of this UE again.
Step 305, home network selection functional entity are replied access network discovery and are selected the supplementary response to UE.
The access network discovery that has carried in the step 304 in this response message to be determined with select supplementary.
Step 306, UE can according to the access network discovery that obtains in the step 305 with select supplementary, and UE goes up the strategy of storage, carries out access network discovery and selection.
Among Fig. 3, if AAA Proxy that dotted line marks and AAA Server can not direct communication between expression home network selection functional entity and the visited network selection functional entity, then can carry out forwards by AAAProxy and AAA Server.Certainly, also can be the similar solid of utilizing other.
In the embodiment method shown in Figure 3, no matter where UE roams into, can get in touch the home network selection functional entity, UE does not spend and finds the visited network selection functional entity, and home network can strengthen to be found and the control of selecting Access Network UE, shields visited network simultaneously UE is found and the influence of selecting Access Network.
For access network discovery that sends based on the visited network selection functional entity and the situation of selecting the supplementary request to start, the message flow sequential of this embodiment as shown in Figure 4, corresponding following steps:
Step 401, UE send access network discovery and select the supplementary request to the visited network selection functional entity.
Similarly, can also carry UE sign, the positional information of UE, the access capability information of UE in this message; And the information that is used to find the home network selection functional entity, such as the address or the sign of home network selection functional entity, or home network identification etc.
Step 402, visited network selection functional entity send access network discovery and select the supplementary request to the home network selection functional entity.
Need to carry the Access Network information relevant in the visit ground in this message with this UE.Can also carry sign, positional information, access capability of this UE etc., so that the home network selection functional entity can directly be known these information.
This visited network selection functional entity is determined the Access Network information on visit ground, and is similar with aforesaid processing method, repeats no more here.
Step 403, home network selection functional entity are according to the Access Network information of visiting ground, and decision sends to the access network discovery and the content of selecting supplementary of this UE.
As previously mentioned, the home network selection functional entity can also decide access network discovery that sends to this UE and the content of selecting supplementary further according to access capability and/or the various policy information of this UE.
Step 404, home network selection functional entity are returned access network discovery and are selected the supplementary response to the visited network selection functional entity.
The access network discovery and selection supplementary that are used to send to this UE that are determined have been carried in this response message.
Step 405, visited network selection functional entity are returned access network discovery and are selected the supplementary response to UE.
The access network discovery and selection supplementary that are used to send to this UE that are determined have been carried in this response message equally.
Step 406, UE can according to the access network discovery that obtains in the step 405 with select supplementary, and UE goes up the strategy of storage, carries out access network discovery and selection.
Similarly, among Fig. 4, if AAA Proxy that dotted line marks and AAA Server can not direct communication between expression home network selection functional entity and the visited network selection functional entity, then can carry out forwards by AAA Proxy and AAA Server.Certainly, also can be the similar solid of utilizing other.
In the embodiment method shown in Figure 4, UE can get in touch with the visited network selection functional entity on visit ground flexibly, shortens the communication path of whole flow process, reduces time delay.
Based on regular startup, or be subjected to specific events trigger and situation about starting for the home network selection functional entity, the message flow sequential of this embodiment as shown in Figure 5, corresponding following steps:
Step 501, home network selection functional entity send access network discovery and select the supplementary request to the visited network selection functional entity.
As previously mentioned, this home network selection functional entity can be regularly, also can be based on specific events trigger and send the Access Network request to the visited network selection functional entity.Wherein, this particular event can be as previously mentioned: receive the incident, the carrier policy that need to coordinate load between the indication, Access Network of network operation and management system and change, receive indication of other network entities etc.
In addition, can also carry the relevant information of this UE in this request message, such as, the positional information of this UE, the access capability of this UE etc., or access network type indication.
Step 502, visited network selection functional entity are returned access network discovery and are selected the supplementary response to the home network selection functional entity.
The visited network selection functional entity is determined the Access Network information relevant with this UE in the visit ground, and it is returned to the home network selection functional entity by this response message.Wherein, as previously mentioned, this visited network selection functional entity need be determined the visit ground Access Network information relevant with this UE according to the positional information of UE.The positional information of this UE can be fed back by the home network selection functional entity, can also obtain by other modes by the visited network selection functional entity, such as, the visited network selection functional entity sends position requests to UE, and UE receives the positional information of request back to visited network selection functional entity feedback UE.
In addition, if the visited network selection functional entity is known the access capability of this UE by the request in the step 501, or the access network type indication, then can only return and this UE access capability or the corresponding Access Network information of access network type indication.
Step 503, home network selection functional entity are used to send to the access network discovery and selection supplementary of UE according to the visit ground Access Network information decision that obtains.
Certainly, the home network selection functional entity can be further determines according to the strategy that moves between the access capability of UE and/or system.
Step 504, home network selection functional entity send access network discovery and select the supplementary indication to the visited network selection functional entity.
During indicating with the selection supplementary, carries this access network discovery the access network discovery and selection supplementary that are used to send to UE that this home network selection functional entity is determined.
Step 505, visited network selection functional entity send access network discovery and select the supplementary indication to UE.
The access network discovery and selection supplementary that are used to send to UE that obtain by step 504 have been carried in this message.
Step 506, UE can according to the access network discovery that obtains in the step 505 with select supplementary, and UE goes up the strategy of storage, carries out access network discovery and selection.
In addition, in the above-mentioned steps 504, the home network selection functional entity can also directly send access network discovery and select the supplementary indication to UE, and carry the access network discovery and selection supplementary that are used to send to UE in this indication, in this case, then can omit step 505, and UE directly can obtain access network discovery and select supplementary according to step 504.
Similarly, among Fig. 5, if AAA Proxy that dotted line marks and AAA Server can not direct communication between expression home network selection functional entity and the visited network selection functional entity, then can carry out forwards by AAA Proxy and AAA Server.Certainly, also can be the similar solid of utilizing other.
Embodiment shown in Figure 5, the UE that provides a kind of network side to trigger finds the method with the selection Access Network, the Access Network of be convenient to need to carry out the load adjustment at network, guiding UE finding and select the network side expectation when strategy was adjusted.
Above-mentioned several embodiment is to being used to send to the access network discovery of UE and selecting the implementation of supplementary to describe in detail by the decision of home network selection functional entity.
For second kind of determining method, promptly determine by the visited network selection functional entity, need the visited network selection functional entity to obtain the policy information that moves between the system of ownership place from the home network selection functional entity, and according to the Access Network information on this policy information, this visit ground, the access network discovery that decision need send to this UE with select supplementary.
For the method by the decision of visited network selection functional entity, the embodiment of the invention will 6 be described in detail in conjunction with the accompanying drawings.
As shown in Figure 6, the corresponding following steps of the handling process of this embodiment of the invention:
The visited network selection functional entity of step 601, UE is obtained the policy information that moves between the ownership place system of this UE.
Concrete, the decision of visited network selection functional entity is used to send to the access network discovery of described UE and selects the method for supplementary to be:
The visited network selection functional entity is determined UE all Access Networks on every side according to the UE positional information;
Therefrom select the Access Network of the type that UE can support according to the UE ability, and obtain its relevant information;
Determine the priority orders of described UE each Access Network, that UE can support on every side according to various policy informations;
Each Access Network and relevant information thereof after above-mentioned process determined are arranged in order according to priority order from high to low, i.e. Access Network priority list is as access network discovery and the content of selecting supplementary.
If other information that need assist UE to carry out access network discovery and selection is arranged, for example shift strategy information between the system of Geng Xining then together is placed on access network discovery and selects in the supplementary.
Afterwards, UE can according to the access network discovery that obtains in the step 603 with select supplementary, and UE goes up the strategy of storage, carries out access network discovery and selection.
In above-mentioned steps 601, the visited network selection functional entity of UE is obtained the policy information that moves between the ownership place system of this UE, two kinds of implementations are specifically arranged, a kind of is that the visited network selection functional entity sends access network discovery and selects the supplementary request to the home network selection functional entity, such as, the visited network selection functional entity sends access network discovery and selects the supplementary request to the home network selection functional entity with selecting the supplementary request based on the access network discovery that UE initiates; Another kind is that the home network selection functional entity initiatively sends the policy information that moves between the system of this ownership place to the visited network selection functional entity.
For first kind of implementation, its pairing message flow sequential as shown in Figure 7, corresponding following steps:
Step 701, UE send access network discovery and select the supplementary request to the visited network selection functional entity.
Similarly, can also carry UE sign, the positional information of UE, the access capability of UE in this access network discovery and the request of selection supplementary, and the information that is used to find the home network selection functional entity, such as, the address of home network selection functional entity or sign, or home network identification etc.
Before step 701, UE need find the visited network selection functional entity, for example obtains the address of visited network selection functional entity.The mode of the concrete address that obtains the visited network selection functional entity can be that UE is by DNS or DHCP inquiry, the address that obtains the visited network selection functional entity.
Step 702, visited network selection functional entity send access network discovery and select the supplementary request to the home network selection functional entity.
This access network discovery and the contents of selecting to carry this UE in the supplementary request such as sign.
Step 703, home network selection functional entity are replied access network discovery and are selected the supplementary response to the visited network selection functional entity.
Carry policy information in this response, such as the policy information that moves between the system of this ownership place.
Step 704～705 are the same with above-mentioned steps 602～603, therefore repeat no more.
Step 706, UE can according to the access network discovery that obtains in the step 705 with select supplementary, and UE goes up the strategy of storage, carries out access network discovery and selection.
For second kind of implementation, the main distinction of itself and first kind of implementation shown in Figure 7 is, omits step 701 and 702, directly execution in step 703.And the home network selection functional entity can be based on the special event triggering and carry out this step 703, such as, if the strategy that moves between the system of ownership place changes, then the home network selection functional entity can be initiated this step 703.
Similarly, among Fig. 7, if AAA Proxy that dotted line marks and AAA Server can not direct communication between expression home network selection functional entity and the visited network selection functional entity, then can carry out forwards by AAA Proxy and AAA Server.Certainly, also can be the similar solid of utilizing other.
Fig. 6, embodiment method shown in Figure 7, visited network can be to the own network topology structure of home network shielding, and the while home network can carry out access network discovery and selection by policy control UE again.
In addition, for above-mentioned each method embodiment, if home network selection functional entity and visited network selection functional entity need be obtained the information of UE, also have a kind of acquisition methods, be to send a request message by the storage of subscriber data entity of storage UE information in network to obtain.
For the system of the embodiment of the invention, as previously mentioned, comprise home network selection functional entity and visited network selection functional entity, this home network selection functional entity needs and can communicate by letter with the visited network selection functional entity.And the home network selection functional entity is used to send to the access network discovery and selection supplementary of UE with the visited network selection functional entity by the decision of communicating by letter, and sends to described UE.
Between this home network selection functional entity and the visited network selection functional entity communicate by letter and relevant treatment as previously mentioned, only do simple description here.
Such as, this home network selection functional entity can be obtained the visit ground Access Network information of described UE by communicating by letter with the visited network selection functional entity; And according to the visit of obtaining ground Access Network information and, the access network discovery that decision is used to send to UE with select supplementary.Certainly, this home network selection functional entity can also decide the access network discovery and selection supplementary that are used to send to UE according to this visit ground Access Network information and policy information.
The access network discovery that this home network selection functional entity can also be further sent according to UE with select the supplementary request or be subjected to Event triggered, or after the timing of the setting arrival, send request to the visited network selection functional entity, and from the response that the visited network selection functional entity is returned, obtain the visit ground Access Network information of described UE.
This home network selection functional entity can also be to obtain from the request that the visited network selection functional entity is sent.Such as, the visited network selection functional entity is behind the access network discovery and the request of selection supplementary that reception UE sends, can send access network discovery and select the supplementary request to the home network selection functional entity according to this request, access network discovery that is sent and the Access Network information of selecting to have carried in the supplementary request this visit ground.
This home network selection functional entity can also be by sending access network discovery to the visited network selection functional entity and selecting the supplementary request, and receive the access network discovery of that the visited network selection functional entity is returned, as to have carried visit ground Access Network information and select the supplementary response, obtain the Access Network information on this visit ground.Wherein, this home network selection functional entity can be to be subjected to Event triggered, or after the timing of the setting arrival, sends this access network discovery and select the supplementary request to the visited network selection functional entity.
The access network discovery that this home network selection functional entity can also send to being used to of being determined UE sends to this UE with selecting supplementary, can certainly send to this UE by the visited network selection functional entity.
For this home network selection functional entity, specifically can comprise transceiver module and decision module.
Transceiver module wherein is used for communicating by letter with the visited network selection functional entity, obtains the visit ground Access Network information of UE, and sends to decision module.
Decision module then is used for according to the visit ground Access Network information of receiving, decision is used to send to the access network discovery and selection supplementary of UE, and the information that is determined is sent to described UE by transceiver module.With aforementioned similar, this decision module can also be according to this visit ground Access Network information and policy information, decides the access network discovery and selection supplementary that are used to send to UE.
Above-mentioned transceiver module can also be further used for, receive access network discovery and the request of selection supplementary that the visited network selection functional entity is sent, described request is that the visited network selection functional entity is being received the access network discovery that UE sends and selected to send after the supplementary request described access network discovery and the Access Network information of selecting to carry at least in the supplementary request this visit ground;
Perhaps, this transceiver module is further used for, the access network discovery that sends according to UE with select the supplementary request, be subjected to Event triggered, or after the timing of the setting arrival, send access network discovery and select the supplementary request to the visited network selection functional entity, and the access network discovery that reception visited network selection functional entity is returned responds the Access Network information of carrying visit ground at least in this access network discovery and the response of selection supplementary with selecting supplementary.
Aforementioned is the access network discovery and selection supplementary that is used to send to UE by the decision of home network selection functional entity, determines this information to be described at the visited network selection functional entity more below.
Such as, this visited network selection functional entity can be used for, by with the communicating by letter of home network selection functional entity, obtain the policy information that moves between the system of ownership place of UE, and the policy information that moves between system according to the Access Network information on this visit ground and described ownership place, decision is used to send to the access network discovery and selection supplementary of described UE, and the information that is determined is sent to UE.
Wherein, this visited network selection functional entity is obtained the policy information that moves between the system of ownership place of UE, the message that can directly send by reception home network selection functional entity, and from this message, obtain the policy information that moves between the system of this ownership place.Can also be to receive the access network discovery and the request of selection supplementary that UE sends earlier, and send access network discovery and select the supplementary request to the home network selection functional entity according to this request, mobile policy information between the access network discovery that returns from the home network selection functional entity and the system of selecting to obtain the supplementary response this ownership place afterwards.
For this visited network selection functional entity, can comprise transceiver module and decision module equally.
Transceiver module wherein is used for communicating by letter with the home network selection functional entity, obtains the policy information that moves between the system of ownership place of UE, and sends to decision module.
Decision module, then be used for Access Network information according to this visit ground, and the policy information that moves between the system of the ownership place of receiving, decision is used to send to the access network discovery and selection supplementary of UE, and the information that is determined is sent to this UE by transceiver module.
Above-mentioned transceiver module, specifically can be used to receive the home network selection functional entity after receiving access network discovery that UE sends and selecting the supplementary request, be subjected to Event triggered, or the message of sending after the timing of the setting arrival, from described message, obtain the policy information that moves between the system of described ownership place;
Perhaps be used for, receive access network discovery and the request of selection supplementary that UE sends, send access network discovery and select the supplementary request to the home network selection functional entity with selecting the supplementary request according to described access network discovery, and mobile policy information between the access network discovery that returns from described home network selection functional entity and the system of selecting to obtain the supplementary response described ownership place.
As previously mentioned, described home network selection functional entity and visited network selection functional entity are by the direct communication of roaming interface.Ownership entity in ownership place is by under roaming interface and the situation that the visit entity of visit in the ground is connected, can also and visit entity by described ownership entity between described home network selection functional entity and the visited network selection functional entity and be connected.Such as, be connected with AAAProxy by AAA Server.
Though pass through with reference to some of the preferred embodiment of the invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (20)
1, a kind of Access Network information getting method is characterized in that,
Be provided with between the visited network selection functional entity in home network selection functional entity and the visited network in the home network of user terminal UE and can communicate by letter;
The home network selection functional entity of UE is used to send to the access network discovery and selection supplementary of UE with the visited network selection functional entity by the decision of communicating by letter, and sends to described UE.
2, method according to claim 1 is characterized in that,
The home network selection functional entity of UE is used to send to the access network discovery of UE and select supplementary by the decision of communicating by letter with the visited network selection functional entity, comprising:
The home network selection functional entity of UE is obtained the visit ground Access Network information of described UE by communicating by letter with the visited network selection functional entity;
Described home network selection functional entity is according to the visit ground Access Network information of obtaining, or according to the visit ground Access Network information and the policy information that obtain, decision is used to send to the access network discovery of described UE and selects supplementary.
3, method according to claim 2 is characterized in that,
Described home network selection functional entity is with before the visited network selection functional entity is communicated by letter, and further comprise: the home network selection functional entity is determined described visited network selection functional entity according to the information of described UE; Perhaps, the home network selection functional entity is directly from UE access network discovery that sends and the information of selecting to obtain the supplementary request described visited network selection functional entity.
4, method according to claim 2 is characterized in that,
The home network selection functional entity of described UE is by communicating by letter with the visited network selection functional entity, the visit ground Access Network information of obtaining described UE comprises: the home network selection functional entity of UE receives access network discovery that the visited network selection functional entity is sent, that carry Access Network information relevant with described UE in this visit ground at least and selects the supplementary request, and to be the visited network selection functional entity send after receiving access network discovery that UE sends and the request of selection supplementary described request;
Perhaps comprise: described home network selection functional entity is received the access network discovery and the request of selection supplementary that UE sends, or be subjected to Event triggered, or after the timing of the setting arrival, send access network discovery and select the supplementary request to the visited network selection functional entity; And receive access network discovery that the visited network selection functional entity returns and select the supplementary response, described access network discovery with select the supplementary response in carry the Access Network information relevant in the ground of visiting at least with described UE.
5, method according to claim 4 is characterized in that,
Described visited network selection functional entity determines that the Access Network information on the visit ground relevant with described UE comprises: the visited network selection functional entity is obtained the positional information of described UE by home network selection functional entity or described UE, and visits the Access Network information relevant with described UE in the ground according to the positional information of described UE is definite;
Perhaps comprise: the visited network selection functional entity is obtained positional information and the corresponding access network type of described UE by home network selection functional entity or described UE, and determines the Access Network information relevant with described UE in the visit ground according to positional information and the access network type of described UE.
6, method according to claim 5 is characterized in that,
The type of the definite Access Network of being asked of described home network selection functional entity comprises: the message of sending according to UE obtains the access capability of described UE or the access network type of described UE request, or according to the ownership place strategy, determines described access network type.
7, method according to claim 1 is characterized in that,
The home network selection functional entity of UE is used to send to the access network discovery of UE and select supplementary by the decision of communicating by letter with the visited network selection functional entity, comprising:
The visited network selection functional entity of UE is obtained the policy information of described UE;
Described visited network selection functional entity is according to the Access Network information on this visit ground and the policy information that is obtained, and decision is used to send to the access network discovery and selection supplementary of described UE.
8, method according to claim 7 is characterized in that,
Described visited network selection functional entity is obtained the policy information of described UE, comprising:
The visited network selection functional entity receive the home network selection functional entity after receiving access network discovery that UE sends and selecting the supplementary request or the access network discovery that sends after arrived by the timing of Event triggered or setting with select supplementary message, and from described access network discovery with select to obtain described policy information the supplementary message;
Perhaps, comprising:
Behind the access network discovery and the request of selection supplementary that described visited network selection functional entity reception UE sends, send access network discovery and the request of selection supplementary to the home network selection functional entity;
The access network discovery that described visited network selection functional entity reception home network selection functional entity is returned responds with selecting supplementary, and obtains described policy information from described access network discovery and the response of selection supplementary.
9, according to any described method in the claim 1～8, it is characterized in that,
Described home network selection functional entity and visited network selection functional entity are by the direct communication of roaming interface;
Perhaps, the ownership entity in the ownership place is connected with the visit entity of visit in the ground by the roaming interface, between described home network selection functional entity and the visited network selection functional entity by described ownership entity and visit entity and be connected.
10, method according to claim 1, it is characterized in that, the described access network discovery and selection supplementary that is used to send to UE, by home network selection functional entity or visited network selection functional entity access capability information and/or policy information according to described UE, and the Access Network information decision on the visit of obtaining ground.
11, a kind of Access Network Information Acquisition System is characterized in that,
Can communicate by letter between the visited network selection functional entity in home network selection functional entity in the home network of described system and the visited network;
The home network selection functional entity is used to send to the access network discovery and selection supplementary of UE with the visited network selection functional entity by the decision of communicating by letter, and sends to described UE.
12, system according to claim 11 is characterized in that,
Described home network selection functional entity is used for, the visit ground Access Network information of obtaining described UE by communicating by letter with the visited network selection functional entity; And according to the visit ground Access Network information of obtaining, perhaps according to the visit ground Access Network information of obtaining, and policy information, decision is used to send to the access network discovery of UE and selects supplementary.
13, system according to claim 12 is characterized in that,
Described visited network selection functional entity is further used for, receive access network discovery and the request of selection supplementary that UE sends, and send access network discovery and select the supplementary request to described home network selection functional entity with selecting the supplementary request, and the access network discovery that sends of described visited network selection functional entity and the Access Network information of selecting in the supplementary request according to described access network discovery with carrying this visit at least;
Perhaps, described home network selection functional entity is further used for, the access network discovery that sends according to UE with select the supplementary request or be subjected to Event triggered, or after the timing of the setting arrival, send access network discovery and select the supplementary request to the visited network selection functional entity, and the access network discovery that reception visited network selection functional entity is returned responds the Access Network information of carrying visit ground at least in described access network discovery and the response of selection supplementary with selecting supplementary.
14, system according to claim 11 is characterized in that,
Described visited network selection functional entity is used for, obtain the policy information of described UE, Access Network information and described policy information according to this visit ground, decision is used to send to the access network discovery and selection supplementary of described UE, and the access network discovery that is determined is sent to described UE with selecting supplementary.
15, system according to claim 14 is characterized in that,
Described visited network selection functional entity is used for, receive access network discovery that the home network selection functional entity sends according to UE with select the supplementary request be subjected to Event triggered or access network discovery that the timing of setting is sent after arriving with select supplementary message, and from described access network discovery with select to obtain described policy information the supplementary message;
Perhaps be used for, receive access network discovery and the request of selection supplementary that UE sends, send access network discovery and select the supplementary request to the home network selection functional entity with selecting the supplementary request according to described access network discovery, and the access network discovery that returns from the home network selection functional entity with select to obtain described policy information the supplementary response.
16, according to any described system in the claim 11～15, it is characterized in that,
Described home network selection functional entity and visited network selection functional entity are by the direct communication of roaming interface;
Perhaps, the ownership entity in the ownership place is connected with the visit entity of visit in the ground by the roaming interface, between described home network selection functional entity and the visited network selection functional entity by described ownership entity and visit entity and be connected.
17, a kind of network selection functional entity is characterized in that, described network selection functional entity is arranged in home network, and described home network selection functional entity can be communicated by letter with the visited network selection functional entity in the visited network; Described home network selection functional entity comprises transceiver module and decision module, wherein,
Described transceiver module is used for communicating by letter with the visited network selection functional entity, obtains the visit ground Access Network information of described UE, and sends to decision module;
Described decision module, be used for according to the described visit ground Access Network information of receiving, perhaps according to the described visit ground Access Network information of receiving, and policy information, decision is used to send to the access network discovery and selection supplementary of UE, and the information that is determined is sent to described UE by transceiver module.
18, network selection functional entity according to claim 17 is characterized in that,
Described transceiver module is further used for, receive access network discovery and the request of selection supplementary that the visited network selection functional entity is sent, the Access Network information of carrying this visit ground at least in described access network discovery and the request of selection supplementary, and be that the visited network selection functional entity sends after the access network discovery of receiving the UE transmission and the request of selection supplementary;
Perhaps, described transceiver module is further used for, receive access network discovery and the request of selection supplementary that UE sends, be subjected to Event triggered, or after the timing of the setting arrival, send access network discovery and the request of selection supplementary to the visited network selection functional entity, and the access network discovery that reception visited network selection functional entity is returned responds the Access Network information of carrying visit ground at least in described access network discovery and the response of selection supplementary with selecting supplementary.
19, a kind of network selection functional entity is characterized in that, described network selection functional entity is arranged in visited network, and described visited network selection functional entity can be communicated by letter with the home network selection functional entity in the home network; Described visited network selection functional entity comprises transceiver module and decision module, wherein,
Described transceiver module is used for communicating by letter with the home network selection functional entity, obtains the policy information of UE, and sends to decision module;
Described decision module is used for the Access Network information according to this visit ground, and the policy information of receiving, decision is used to send to the access network discovery and selection supplementary of UE, and the information that is determined is sent to described UE by transceiver module.
20, network selection functional entity according to claim 19 is characterized in that,
Described transceiver module, be used to receive the home network selection functional entity after receiving access network discovery that UE sends and selecting the supplementary request or be subjected to Event triggered, or access network discovery that sends after the timing of the setting arrival and selection supplementary message, from described access network discovery and selection supplementary message, obtain described policy information;
Perhaps, be used for, receive access network discovery and the request of selection supplementary that UE sends, send access network discovery and select the supplementary request to the home network selection functional entity with selecting the supplementary request according to described access network discovery, and the access network discovery that returns from described home network selection functional entity with select to obtain described policy information the supplementary response.
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| CNA2008100664505A CN101553021A (en) | 2008-03-31 | 2008-03-31 | Method, device and system for acquiring access network information |
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| CNA2008100664505A CN101553021A (en) | 2008-03-31 | 2008-03-31 | Method, device and system for acquiring access network information |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895963A (en) * | 2010-07-16 | 2010-11-24 | 华为技术有限公司 | Method and device for network access of equipment in wireless sensor network |
| WO2014161140A1 (en) * | 2013-04-01 | 2014-10-09 | 华为技术有限公司 | Method and device for selecting network at visited location |
| CN104221425A (en) * | 2012-07-20 | 2014-12-17 | 株式会社Ntt都科摩 | Mobile communication method and mobile station |
| CN110679185A (en) * | 2017-03-20 | 2020-01-10 | 中兴通讯股份有限公司 | Network slicing service function |
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2008
- 2008-03-31 CN CNA2008100664505A patent/CN101553021A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895963A (en) * | 2010-07-16 | 2010-11-24 | 华为技术有限公司 | Method and device for network access of equipment in wireless sensor network |
| CN104221425A (en) * | 2012-07-20 | 2014-12-17 | 株式会社Ntt都科摩 | Mobile communication method and mobile station |
| WO2014161140A1 (en) * | 2013-04-01 | 2014-10-09 | 华为技术有限公司 | Method and device for selecting network at visited location |
| CN104247517A (en) * | 2013-04-01 | 2014-12-24 | 华为技术有限公司 | Method and device for selecting network at visited location |
| CN104247517B (en) * | 2013-04-01 | 2018-07-31 | 华为技术有限公司 | The method and apparatus of network is selected in visited place |
| CN108966320A (en) * | 2013-04-01 | 2018-12-07 | 华为技术有限公司 | In the method and apparatus of visited place selection network |
| CN110679185A (en) * | 2017-03-20 | 2020-01-10 | 中兴通讯股份有限公司 | Network slicing service function |
| CN110679185B (en) * | 2017-03-20 | 2021-10-08 | 中兴通讯股份有限公司 | Network slicing service function |
| US11184841B2 (en) | 2017-03-20 | 2021-11-23 | Zte Corporation | Network slicing serving function |
| US12114253B2 (en) | 2017-03-20 | 2024-10-08 | Zte Corporation | Network slicing serving function |
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